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Halogen-free flame retardant for PA6/66
2018 / 12 / 15
Proflame®PN2131C is an eco-friendly, halogen-free flame retardant specially used for both pure and GF PA6/66. ®PN2131C is a complete flame retardant system, so there is no need to add other flame retardants in your formulations. ®PN2131C is equivalent to Exolit OP1312,1314,but is more cost-efficient than the latter. ®PN2131C is a product from Novista Group Co. Ltd.
Halogen-free flame retardant for Polyolefins
2018 / 12 / 08
Proflame®PNPO-G1 is an eco-friendly, halogen-free flame retardant specially used for polyolefins (PP, PE, TPE, TPU, EVA). ®PNPO-G1 is a complete flame retardant system, so there is no need to add other flame retardants in your formulations. ®PNPO-G1 is equivalent to Adeka FP-2200S,but is more cost-efficient than the latter. ®PNPO-G1 is a product from Novista Group Co. Ltd.
Halogen-free flame retardant for PP
2018 / 12 / 08
Proflame®PNPO is an eco-friendly, halogen-free flame retardant especially for PP. ®PNPO is an intumescent flame retardant system and can be used in both PP homopolymer (PP-H) and PP copolymer (PP-C). Economical versions of ®PNPO, which can only work in either PP-H or PP-C, are also available. ®PNPO is a complete flame retardant system, so there is no need to add other flame retardants in your formulations. And the suggested dosage to achieve UL94- V0 is between 20% and 30%. ®PNPO is a product from Novista Group Co. Ltd.
Applications of CPE(Chlorinated Polyethylene)
2018 / 12 / 04
1.Application in waterproofing membrane: CPE-enhanced PVC waterproofing membrane, due to the excellent characteristics of CPE, the tensile strength of the new product is increased by 80%, the tear strength is increased by 50%, and its mechanical weathering resistance, low temperature resistance and resistance Improvements in aging and other properties have been welcomed by the construction department (CPE: 10PHR-15PHR). Neoprene CPE waterproofing membrane and neoprene CPE styrene butadiene rubber waterproofing membrane have the advantages of high strength, high elasticity, high elongation, corrosion resistance, high temperature resistance, cold resistance, aging resistance and flame retardancy. The waterproof material has a broad market. 2.Blending plastic doors and windows with CPE and PVC makes the elasticity, toughness and low temperature performance greatly improved, and the weather resistance, heat resistance and chemical stability are good.The plastic doors and windows are cheap, corrosion-resistant and colorful, bright, and have advantages over aluminum alloy doors and windows. They have largely replaced aluminum doors and windows, and the market will become more and more broad. 3.Application in wire and cable sheath: The addition of CPE can improve its smoldering performance, anti-aging performance and physical and mechanica
The importance of environmental awareness in PVC products
2018 / 12 / 01
From the beginning of twentieth Century 80 years, countries around the world have proposed to prohibit the use of lead salt stabilizer, cadmium salts requirements: A, Europe a ,European Standardization Committee approved EN71-3 standard in March 11, 2000, restrictions on soluble eight heavy metals, including lead limit was 90mg/kg; b ,The European Parliament and in 2000 passed the environmental bill 76/769/EEC-PVC material requirements of environmental protection green book, starting from August 2003, in electrical materials banned the use of lead salt and other 18 kinds of harmful substances, in 2015 to prohibit the use of lead salt stabilizer; c ,The European Union in January 27, 2003 promulgated the "restrictions on the use of certain hazardous substances in electrical and electronic equipment" (RoHS), clearly defined,From July 1, 2006 onwards, all in the EU market of large, small household appliances, IT and remote equipment, communications equipment, audio visual equipment, lighting equipment, electrical and electrical tools, toys and leisure and sports equipment, vending machines, eight kinds of electromechanical products shall not contain lead, mercury, cadmium, hexavalent chromium, PBB six, PBDE six, etc. hazardous substances; d ,In 2005 July 6, the European Parliament and the Board issued "on the development of energy consuming product design requirements for environmental protection framework directive 2005/32/EC" (EuP), which in order to improve the overall environmental performance of products, to ensure the security of energy supply, the directive covers all can use products. The production of China's plastics industry impact will be compared to RoHS and REACH regulations more serious; e ,In 2006 22 months 28 days of the European Parliament and the Council of the European Union and put forward "on chemicals registration, evaluation, authorization and restriction sy
2018 / 12 / 01
With the expansion of the demand of PP in the automotive industry, construction industry,electrical insulation industry and shipbuilding industry, people have higher requirements for the flame retardancy of PP. But the limiting oxygen index value of PP (LOI) 17.0%-18.5% only, belong to flammable materials, combustion and charring rate low, combustion heat, combustion is easy to produce the droplet, easily make flame propagation two fires occurred, thus limiting the use of PP in many fields, so the flame retardant PP modification, is particularly important for expanding its application fields. At present, the flame retardants applied to PP can be divided into halogenated flame retardants, metal hydroxides, silicon flame retardants, nano flame retardants, phosphorus flame retardants, intumescent flame retardants, etc. Intumescent flame retardant (IFR) is a low toxic halogen-free flame retardant with P and N as main components. It is consistent with the development trend of flame retardant and environmental protection, and is a kind of environment-friendly flame retardant with wide application prospects. IFR plays a flame retardant effect mainly through the interaction of acid source, carbon source and gas source, which is generated by thermal decomposition to produce carbon layer. IFR has added less, efficient, low toxicity, low smoke and no droplet advantages than other flame retardant material has excellent flame retardant properties, therefore, intumescent flame retardant has attracted more and more attention, has also b
Influence of CPE on PVC processing performance
2018 / 11 / 27
CPE, Chlorinated Polyethylene, obtained by chlorination of a special High-Density Polyethylene (HDPE), that is, a product in which a chlorine atom partially replaces a hydrogen atom on a HDPE molecular chain. It is a white powder after drying and is non-toxic. CPE formula: [CH2-CHCl-CH2-CH2]n When the amount of CPE added is less than 5 PHR, the plasticization is delayed, and at 5 PHR, it has substantially no effect on the plasticization of the formulation system. When the CPE exceeds 5 PHR, it plays a role in promoting plasticization. With the increase of CPE, the plasticizing time of the formulation is shorter and shorter, the maximum plasticizing torque and balance torque are increased, and the plasticizing temperature is gradually decreased. CPE has a chlorine content of 35%. There are two segments in its structure: One is a chlorinated segment in which a hydrogen atom is replaced by a chlorine atom. This segment is structurally strong, similar to PVC, and has good compatibility. The other is a PE segment in which the hydrogen atom is not replaced by a chlorine atom. This structure has a weak polarity and is poorly compatible with PVC. It acts as an external lubrication between PVC and can delay the plasticization of PVC. The glass transition temperature of CPE is about 10 °C, and PVC is 80 °C. Under the test conditions, CPE shows a tendency to soften and soften earlier than PVC and a slightly higher viscosity. When the amount of CPE added is small, the total amount of polar segments with good compatibility betw
4 principles of halogen-free flame retardants
2018 / 11 / 24
Halogen free flame retardants have low smoke emission and no toxic or corrosive gases. Halogen free flame retardant additives are mainly phosphorus compounds and metal hydroxides. These two compounds do not volatilize and do not produce corrosive gases when burning. They are known as nuisance free flame retardants. The following is a brief introduction to the flame retardant principle of halogen free flame retardants. 1. endothermic action: any burning heat released in a shorter time is limited. If a portion of the heat released from the fire source is absorbed in a shorter time, the flame temperature will decrease, radiating to the burning surface and acting on the heat of cracking the combustible molecules that have been vaporized into free radicals, and the combustion reaction will be reduced. To a certain degree of inhibition. Under the high temperature conditions, the flame retardant has a strong endothermic reaction, absorbs some of the heat released from the combustion, reduces the temperature of the combustible surface, effectively inhibits the formation of combustible gas and prevents the spread of the combustion. The flame retardant mechanism of Al (OH) 3 flame retardant is to increase the heat capacity of the polymer, so that it absorbs more heat before it reaches the thermal decomposition temperature, thus improving its flame retardancy. These flame retardants give full play to their characteristics of absorbing large amounts of heat when combined with water vapor and improve their own flame retardancy.
2018 / 11 / 24
The MBS (Methyl methacrylate-Butadiene-Styrene) resin is a terpolymer of methyl methacrylate (M), butadiene (B) and styrene (S), which has a typical core-shell structure. Because its solubility parameter is similar to that of PVC, the thermodynamic compatibility of the two is good, which shows that PVC has high impact strength at room temperature or low temperature. And because it is similar to the refractive index of PVC, when the two are blended and melted, it is easy to achieve a uniform refractive index, so the use of MBS as the impact modifier of PVC does not affect the transparency of PVC. Therefore, MBS is the best material for making transparent products from PVC. On the other hand, since it has good compatibility with PVC and high impact resistance at room temperature or low temperature, it is also suitable for various products which are non-transparent. According to the data, when the MBS resin is added to PVC, the impact strength of the product can be improved, and the cold resistance and processing fluidity of the product can be improved. Therefore, MBS has been widely used as a PVC impact modifier. In addition, it has good colorability and can be used to make containers, pipes, plates, interior trim panels and soft products. However, due to its unsaturated structure of butadiene, which is susceptible to oxygen and ultraviolet rays, it has poor weather resistance and is not suitable for use in products that
Several advantages of flame retardant masterbatch
2018 / 11 / 17
Because of the flame retardant efficiency, environmental protection, efficiency, convenience and so on, the flame retardant masterbatch has become an effective substitute for the traditional flame retardant and has been widely used in the various aspects of plastic granulation, extrusion, injection molding and other aspects. The effective flame retardant masterbatch is also known as the flame retardant masterbatch for modified plastics plant. The following advantages of using functional flame retardant masterbatch in modification plant. 1. Reduce cost With the progress of science and technology, the continuous development of carrier plastics and equipment, high concentration, high dispersion and high compatibility are possible. A small amount of carrier is no longer the main cause affecting the flame retardancy. Thus, the ideal condition of the exchange of flame retardant and powdery flame retardant is realized, and the flame retardant effect is not constant, and the flame retardancy efficiency is improved. Together with the organic combination of the fire-retardant masterbatch, the cost is reduced by the collective purchase, and the cost advantage of the flame retardant masterbatch is guaranteed, so that the cost can be effectively reduced after the customer is used.
Anti-aging property of PVC Heat Stabilizers
2018 / 11 / 15
Anti-aging property of PVC heat stabilizers shows by anti-aging performance of PVC profiles. Anti-aging property of PVC heat stabilizer in PVC profile show in two aspects. In one aspect, it ensures heat stability of PVC molecular chain in heating mixing process. In the other aspect, it ensures heat stability of PVC molecular chain in PVC profiles` shelf life. To fulfill the two aspects, anti-aging performance of heat stabilizer itself is important. If heat stabilizer`s anti-aging property is not good, generated Photochromic molecules will lead to decomposition of PVC molecular chain. It would not prevent the decomposition of PVC resin, but will accelerate the aging rate of PVC resin. So it is important prerequisite to ensure anti-aging performance of PVC profile that evaluate anti-aging property of PVC stabilizer itself. Stabilizer`s evaluation content: The product shall have good heat stability, UV stability, no color changing and no coloration in heating process, storage and use. Here, we can introduce following four testing methods to evaluate the anti-aging properties of stabilizer: 1. Outdoor sunlight at PVC stabilizer itself. 2. Static thermal stabilization time of PVC dry blend. For more information, please contact mandyzhang@novistagroup.com
Novista's PVC foaming regulator
2018 / 11 / 13
Our PVC foaming regulator TF-100 is a processing aid (Acrylic Processing Aid) based on a high molecular weight resin, which improves the processability and the performances of PVC formulations. It can be widely used in PVC profiles, sections, pipes, fittings and low foaming products to inhibit foaming or vesication. Advantage: --Promote gelation of #PVC, improves hot-melt strength and visco-elasticity, stabilizes the microcells generated by lowing agents to achieve the low density and high strength of the foam; --Increase the surface quality of PVC products, excellent dispersivity and rheological property in PVC resin processing, promote fusion in low temperature and increase fusion strength, elongation and elasticity; --Broaden the range of PVC resin processing, endow perfect surface gloss, get uniform bubble structure and low density using in foam products. For more details, pls email or phone to us.
Analysis of technical parameters of low smoke halogen free flame retardant cable
2018 / 11 / 10
As we all know, jacket materials play an important role in protecting optical cables. The types of optical cables also vary with the variety of sheath materials, such as low smoke halogen free fuel, which is called low smoke halogen free flame retardant cable. However, some optical cable manufacturers are not fully aware of the sheathing materials. Sometimes, some indexes are ignored and other indicators are ignored, which leads to the lack of the required technical indicators. Sheathing material. In order to make the light cable manufacturing enterprises to have a more comprehensive understanding of the sheathing material, and to purchase the safe and high quality and cheap sheathing materials , we have carefully investigated and studied several important indicators of the sheath and listed some problems existing in the market of the sheathing sheath at present for everyone to participate in the examination. 1, low smoke halogen free flame retardant cable material oxygen index It represents the flame retardant performance of halogen free flame retardants in almost all eyes. Most people believe that the higher the oxygen index is,
THE DIFFERENCES BETWEEN CPVC AND PVC
2018 / 11 / 06
(CPVC pipes and PVC pipes) The main difference between CPVC and PVC is the range of temperatures each is capable of withstanding. CPVC can handle temperatures up to 200° Fahrenheit, while PVC peaks at 140° Fahrenheit. Above those temperatures, both CPVC and PVC will begin to soften, increasing the risk of joints and pipes failing. The primers, solvent cements, and bonding agents are different for PVC and CPVC due to the differences in their chemical composition. For example, CPVC solvent cements must meet ASTM F493 specifications, and PVC solvent cements must meet ASTM D2564 specifications. Because of this, CPVC and PVC pipes and fittings, along with their solvents and bonding agents, should not be used interchangeably. In addition to meeting ASTM specifications, there are different solvent cements required based on the pipe`s size and intended application, so check the product containers to be sure you`re using the correct agent for the correct application. PVC comes in nominal pipe sizes only, while CPVC is available in both nominal pipe sizes and copper tube sizes. CPVC has greater flexibility than PVC, and requires support at three foot intervals to maintain its position. CPVC and PVC visual differences: --PVC pipes are white or dark gray in color. --CPVC is off-white, light gray, or yellow. --Both pipe types have technical specifications printed on the side for easy verification. --Both pipe types are
2018 / 11 / 05
CPVC is a high-performance industrial piping material specifically engineered to meet the demands of wastewater treatment plants, creating greater reliability and better performance for an extended service life. For a more in-depth look at the advantages of CPVC in wastewater treatment plants,
Why ABS and V0 flame retardants are easy to carbonization?
2018 / 11 / 03
Flame-retardant ABS is made from YISHION ABS resin, with high thermal stability, flame retardants and so on. The preparation methods of flame retardant ABS are usually divided into two types. One is copolymerization of monomers containing halogen elements in graft polymerization, and then the flame retardant ABS is prepared. This method is difficult to achieve satisfactory flame retardancy because of the limitation of the amount of fourth monomers during copolymerization. The two is to blend the compounds or polymers containing halogen elements and other flame retardant additives and ABS resin to make blends of flame retardant ABS, which has been widely used in industrial production. The flame retardant is easily decomposed, carbonized or yellowing at high temperature, so the forming temperature should be as low as possible. It is usually set below 190 C (the resin melt temperature is below 220 C). "Carbonization" is not bad, the flame retardancy principle can be divided into four mechanisms: (1) isolation of oxygen and promoting polymer carbonization to reduce flammable gas production and flame retardancy; (2) produce non flammable gases to dilute oxygen concentration to
Characteristics and application cases of solid calcium-zinc composite heat stabilizer
2018 / 11 / 02
1. Hot spot of solid calcium-zinc composite heat stabilizer Environmental protection (relative to lead, cadmium, tin, antimony). Odorless or low-odor (relative to organotin and liquid calcium-zinc), the odor of organotin is derived from mercaptan, liquid calcium-zinc, antimony-zinc stabilizer may be derived from short-chain acid and low-boiling solvent, solid calcium-zinc does not exist these questions. Solid assisted stabilizer technology has developed rapidly (relative to liquid calcium and zinc), especially the use of auxiliary stabilizers represented by hydrotalcites and polyol esters, which has solved the problem of zinc burning. Calcium-zinc stabilizers have made great progress in performance and cost, especially in the hard field. As the formula continues to improve, the cost is decreasing, the performance is improving, and the price has gradually approached the lead salt. 2. Formulation system of solid calcium and zinc According to the principle of primary stabilizer and secondary stabilizer, zinc soap in the calcium-zinc composite heat stabilizer is used as the main stabilizer, while calcium soap is used as the secondary stabilizer. In fact, as the secondary stabilizer, hydrotalcite, zeolite, Polyol (ester), antioxidants, and the like. Therefore, the calcium-zinc composite heat stabilizer should be strictly referred to as [organic zinc composite heat stabilizer", and the common formulation system of solid organic zinc composite heat stabilizer (without hydrazine) has the following structures: ---Zinc soap + calcium soap + other; ---Zinc soap + hydrotalcite + other; ---zinc soap + zeolite + other; ---Zinc soap + polyol (ester) + other; ---Zinc soap + antioxidant + other; 3. Application classification of powdered calcium and zinc According to heat resistance grade: so
2018 / 11 / 01
What is CPVC pipe? CPVC is a thermoplastic made via chlorination of the polyvinyl chloride resin. This means its chemical composition is two carbon atoms double bonded to each other, with two hydrogen atoms and two chlorine atoms single bonded to the carbon. This molecule links with others to form chains of CPVC. It is resistant to degradation and provides a long service lifespan. In fact, the first piping systems using CPVC occurred in 1959, and they are still working without a problem. CPVC pipe physical appearance CPVC pipes are sized in two ways- nominal pipe size (NPS references the diameter of the interior hole of the pipe) and copper tube size (CTS references the outside diameter of the tube). Pipes using the NPS system are light gray, and pipes using CTS system are yellow. Both types of pipe will have their specifications printed on the side. CPVC and PVC similarities It is safe to use CPVC in applications where PVC may be used. Both PVC and CPVC have been deemed safe for potable water transport, i.e. cooking, drinking, and bathing water, and they`re resistant to degradation from acid, alkali, and most inorganic chemicals7. However, both materials require UV stabilizers or burial to prevent deterioration from the sun. They`re both a quiet
2018 / 10 / 29
The global market size of PVC stabilizer, in terms of volume, was 1,088.3 KT in 2014, and is projected to register a CAGR of 4.7% between 2015 and 2020. Asia Pacific: The largest market for PVC Stabilizers Asia-Pacific is the largest market for PVC stabilizers, registering a significant share of 57.1% of the total market in 2014. China is a leading country in Asia-Pacific as well as globally, in terms of volume and value. The market patterns of PVC stabilizer types used for various applications are continuously witnessing an upward trend, mainly due to the increase in the use of PVC in various applications such as pipes & fittings, rigid & semi-rigid films, window profiles, coatings & flooring, and other applications that include medical and consumer goods. The global PVC stabilizers market offers high growth potential in the next five years. Presently, the demand for PVC stabilizers is driven due to dynamic growth in building and construction industry in Asia-Pacific, wide application of PVC, and replacement of conventional materials by PVC in various applications. [Lead stabilizers, the biggest market and organic stabilizers, the fastest-growing markets among various types of stabilizers used for various applications."
Global Epoxidized Soybean Oil Market Trends & Opportunities
2018 / 10 / 27
Among the key end-use segments, the market is gaining maximum from the rising use of epoxidized soybean oil in food and beverages packaging. As the retail sector gears for spike in the demand for processed food, the significance of phthalate-free plasticizers food packaging will scale higher. This will create significant opportunities for the market in the beverage can coating segment as well. JIAAO epoxidized soybean oil is available at a lower cost and offers high flexibility and thermal stability. It is also an eco-friendly bio-plasticizer hence, considered to be a food-grade product. It is due to the same reason that epoxidized soybean oil is extensively used in the food and beverages industry for packaging of products. By application, plasticizers will emerge as one of the key market segments. The segment includes PVA, PVC, and chlorinated rubber applications. The demand for epoxidized soyabean oil is thus considerably high in North America, wherein stringent environmental laws have compelled industries to lower dependence on phthalate plasticizers. Also, soybean oil is most likely to remain the leading segment among raw materials due to its extensive use in the production of epoxidized soybean oil. This vegetable oil is derived from the seeds of soybean and is known to have many inedible applications besides its use in food products. Out of the many inedible appl
Types and Advantages of Organophosphorus Flame Retardants
2018 / 10 / 27
American legislation had updated the flame retardants in furniture and children`s products. The proposal prohibits or restricts the use of halogen flame retardants in children`s products or upholstered furniture. Flame retardant is a basic requirement for the process of plastic production and use. Halogen flame retardant is the most widely used in many plastic flame retardants. But the shortcomings of halogen flame retardants and increasingly strict environmental regulations make the halogen flame retardant face more and more limitations. The market needs a more efficient and environmentally friendly flame retardant. Organophosphorus flame retardants are the same as halogen flame retardant. It has many varieties and is widely used. The halogen flame retardant has many disadvantages, such as the poor anti-UV stability, the burning of more smoke, corrosive gases and toxic gases. Organic phosphorus flame retardants is a hotspot in the study of flame retardant, because of organophosphorus flame retardants also has the plasticizing, thermal stability, etc. It is very significant to improve the comprehensive performance of the molecular material. Types of Organophosphorus Flame Retardants. 1. Phosphate Ester Flame Retardants Phosphate ester flame retardant is the main flame retardant of organophosph
2018 / 10 / 23
Stabilizers are added to PVC to allow its processing and to improve its resistance especially in outdoor applications, weathering and heat ageing and have an important influence on the physical properties of PVC finished products. Factors such as process technology involved, technical requirements of PVC end product, regulatory requirements and cost, influence the choice of the stabilizer used. Novista's stabilizers are sold under the trade name NOVISTA / Prostab and comprise single components as well as complex formulations of these basic components. Our stabilizers range also includes solid mixed metal stabilizers for plastic processing, calendering and extrusion and so on. Novista's one-pack stabilizer, are used for the extrusion and injection moulding of both rigid and plasticised PVC, combined stabilizers with lubricants and other additives to provide customised solutions. Our one-packs are designed to match specific requirements in terms of long term stability and durability along with specific processing requirements.
Do flame retardants actually stop the spread of fires?
2018 / 10 / 20
To answer that question, let`s use flame retardant furniture as an example. The number of upholstered furniture fires in the home environment dropped by 84 percent from 1980, the first year that data were available, to 2009, according to NFPA. While several factors have contributed to that sharp decline, the timeframe coincides with the use of flame retardants to meet flammability standards imposed in California in 1976. In the absence of a national requirement, the California standards were broadly followed by the US furniture industry over the following 20 years. Similar findings have been reported in the United Kingdom where flammability standards also are in place for furniture. Despite this substantial progress, upholstered furniture remains a significant contributor to home fire deaths, according to NFPA. During the period from 2005 to 2009, while upholstered furniture was the item first ignited in 2 percent of reported home fires, these fires resulted in 19 percent of the home fire deaths.
2018 / 10 / 19
We Novista are one of the largest manufactures of CPVC and PVC addditives in China with the latest technology and superior R&D team. Which has the manufacturing capacity to meet your polymer material needs with competitively price and qualified solutions Polyvinyl chloride (PVC) is a versatile and resource efficient thermoplastic with the widest range of applications of any of the plastics family making it useful in virtually all areas of human activity. Without additives PVC would not be a particularly useful substance, but its compatibility with a wide range of additives – to soften it, colour it, make it more processable or longer lasting, results in a broad range of potential applications from car underbody seals and flexible roof membranes to pipes and window profiles. PVC products can be rigid or flexible, opaque or transparent, coloured and insulating or conducting. There is not just one PVC but a whole family of products tailor-made to suit the needs of each application. Unlike most other thermoplastics, the majority of PVC applications have a lifetime of between 10 and 100 years. This requires proven durability and stabilisers play an important part in achieving such performance. All polymers require stabilisers of one sort or another; PVC is no different in this respect. Formulating PVC Products Before PVC can be made into products, it has to be combined with a range of special additives. The essential additives for all PVC materials are stabilisers and lubricants; in the case of flexible PVC, plasticisers are also incorporated. Other additives which may be used include fillers, processing aids, impact modifiers and pigments. Additives will influence or determine the mechanical properties, light and thermal stability, colour, clarity and electrical properties of the product. Once the additives have been selected, they are mixed with the polymer in a process called compounding. One method use
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