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WHY DO WE NEED FLAME RETARDANTS?
2022 / 01 / 15
On average, there are more than 4,500 fatalities annually in the EU-27 as a result of fires; this accounts for 2% of all fatal injuries. Fires develop from inception through build-up, until a stage where the total thermal radiation from the fire-plume, hot gases and hot compartment boundaries cause the radiative ignition of all exposed combustible surfaces within the compartment. This sudden and sustained transition of a growing fire to a fully developed fire is called flashover. At this point, the radiation of energy to the contents of the room raises all the contents to their ignition temperature, whereby the contents of the room suddenly and simultaneously ignite. It is estimated that in a domestic dwelling fitted with working fire alarms on all levels where the occupants are asleep upstairs and a fire starts on the main level of the residence, the occupants have about three minutes to escape if they are to have any chance of survival. The presence of flame retardants in otherwise combustible materials has two possible effects; • The flame retardant may prevent the fire from developing altogether or; • The flame retardant may slow down the build-up phase of the fire by delaying the onset of flash over, thereby extending the escape time window. In either case, the flame retardant serves its pri
ASA color co-extrusion material
2022 / 01 / 14
ASA granule color co extruded material has been widely used in ASA synthetic resin tile industry, with its excellent weatherability, excellent decorative and prolonged exposure to UV, moisture, hot and cold harsh environments can still maintain the stability of the color and physical properties. ASA color co-extrusion material has more color choices, bright, long lasting color, no obvious color difference;surface coverage uniformity and stable process make per ton ASA color coextrusion material to product more than 7000 square meters; the use of replacement in the selection of pure PVC tile project, 10000 square meters of production to be realized, so as to solve the pure PVC tile use of discoloration, powder, crisp cracking risk, and effectively control the cost;the product surface scratch, can provide all kinds of high light, matte, metallic effects selection. ASA 400 is natural or specialized colour particle, it used in extrusion as pvc celuka(crust) foam board for building templates,pvc tile ... to improve the surface gloss,weatherability and vicat softening point. for more inquiry, please contact:mandy 86 13563682728
2022 / 01 / 14
ASA is a thermoplastic created to be similar to ABS, but with better weather resistance. ASA`s combination of high strength and flexibility along with its superior UV resistance makes it ideal for printing objects which may be used in the outdoors or in industrial settings. Due to its high glass transition temperature, a heated bed is required to successfully print with ASA. For the best results when printing with ASA, a fully enclosed print bed recommended. welcome to contact me for more:whatsapp 86 13563682728
2022 / 01 / 14
Characteristics It has excellent fluidity, mutual solubility and stability It has excellent gloss brightness and surface texture and excellent surface hardness. Has the toughness of impact resistance and super weather resistance. Thanks for the trust of customers at home and abroad, our products with excellent product performance and meticulous after-sales service, has been helping the production development of customers at home and abroad!
Everything You Need To Know About PVC Plastic-3
2021 / 12 / 29
What are the Characteristics of Polyvinyl Chloride (PVC)? Some of the most significant properties of Polyvinyl Chloride (PVC) are: 1. Density: PVC is very dense compared to most plastics (specific gravity around 1.4) 2. Economics: PVC is readily available and cheap. 3. Hardness: Rigid PVC ranks well for hardness and durability. 4. Strength: Rigid PVC has excellent tensile strength. Polyvinyl Chloride is a "thermoplastic" (as opposed to "thermoset") material, which has to do with the way the plastic responds to heat. Thermoplastic materials become liquid at their melting point (a range for PVC between the very low 100 degrees Celsius and higher values like 260 degrees Celsius depending on the additives). A primary useful attribute about thermoplastics is that they can be heated to their melting point, cooled, and reheated again without significant degradation. Instead of burning, thermoplastics like polypropylene liquefy allows them to be easily injection molded and then subsequently recycled. By contrast, thermoset plastics can only be heated once (typically during the injection molding process). The first heating causes thermoset materials to set (similar to a 2-part epoxy), resulting in a chemical change that cannot be reversed. If you tried to heat a thermoset plastic to a high temperature a second time, it would only burn. This characteristic makes thermoset materials poor candidates for recycling. Why is Polyvinyl Chloride (PVC) used so often? PVC offers a wide variety of applications and advantages across multiple industries in both its rigid and flexible forms. In particular, Rigid PVC possesses a high density for plastic, making it extremely hard and generally incredibly strong. It is also readily ava
Everything You Need To Know About PVC Plastic-4
2021 / 12 / 29
What Are The Different Types of PVC? Polyvinyl Chloride is widely available in two broad categories: rigid and flexible. Each type comes with its own set of advantages and ideal uses for different industries. Flexible PVC can act as electrical cable insulation and a rubber alternative. Rigid PVC has various uses in construction and plumbing, providing a lightweight, cost-effective, and durable material to use. How is PVC made? Polyvinyl Chloride is made from one of three emulsion processes: - Suspension polymerization - Emulsion polymerization - Bulk polymerization Polyvinyl Chloride for Prototype Development on CNC Machines, 3D Printers, & Injection Molding Machines Two main issues are working with PVC that makes it relatively problematic and not generally recommended for use by non-professionals. The first is the emission of toxic and corrosive gases when melting the material. This happens to some extent or another while 3D printing, CNC machining, and injection molding. We recommend taking a look at the MSDS data sheets for different chlorinated hydrocarbon gases like chlorobenzene and discussing the production process with a professional manufacturer. Second is the corrosive nature of PVC. This is problematic when PVC is repeatedly coming into contact with metal nozzles, cutters, or mold tools made from a material other than stainless steel or some other similarly corrosion-resistant metal. 3D Printing: Polyvinyl Chloride is available in filament form as a plastic welding rod (the material used for welding), but it is not presently retrofit for specific use in 3D printing. Although there are a growing number of plastics and plastic substitutes available for 3D printing, by far, the two most common are still ABS and PLA. The biggest issue with PVC for 3D printing is its corrosive nature (potentially compromising typical
Everything You Need To Know About PVC Plastic-5
2021 / 12 / 29
Is PVC Toxic? PVC can pose a health hazard when burned as it emits hydrogen chloride (HCl) fumes. In applications where the likelihood of fire is high, PVC free electrical wire insulation is sometimes preferred. Fumes can also be emitted when melting the material (such as during prototyping and manufacturing processes like 3D printing, CNC machining, and injection molding). We recommend taking a look at the Material Safety Data Sheets (MSDS) for different chlorinated hydrocarbon gases like chlorobenzene and discussing the production process with a professional manufacturer. What are the Advantages of Polyvinyl Chloride? PVC provides industries with a series of critical advantages that have cemented its place as one of the most popular and widely used plastics on the market. These advantages include: - Polyvinyl Chloride is readily available and relatively inexpensive. - Polyvinyl Chloride is very dense and thus very hard and resists impact deformation very well relative to other plastics. - Polyvinyl Chloride has outstanding tensile strength. - Polyvinyl Chloride is very resistant to chemicals and alkalis. PVC's advantages helped solidify its place as one of the most used plastics around the world. However, even though it's widely effective and popular, you have to consider some factors when using the material. What are the Disadvantages of Polyvinyl Chloride? While PVC has a host of advantages that make it a desirable material to work with, there are some reasons to take caution. The disadvantages that you have to account for when using PVC include: - Polyvinyl Chloride has very poor heat stability. For this reason, additives tha
PVC processing aids Actual funtion
2021 / 12 / 25
PVC processing aids are the main raw materials for acrylic esters and methyl methacrylate. In the actual production, usually the first acrylic and other monomers (such as styrene, acrylonitrile, etc.) by emulsion polymerization to form a glass transition temperature of the polymer, that is, with the elastic properties of the core, and then with methacrylic acid Methyl ester, styrene and the like to form a polymer having a core-shell structure. The emulsion solid content of this emulsion polymerization is generally about 45% ± 3%, the emulsion and then dehydrated to make the product less than 1% water content (mass fraction), to obtain white powder products. Core-shell emulsion polymerization is the core of ACR resin production technology. Although the core structure of ACR has "hard core-soft shell structure", "soft-core-hard shell structure" and "hard-soft-hard three-layer structure", but the current market sales of the main varieties of " Hard shell structure ", with the structure of ACR resin performance is good, more widely used. "Soft-core-hard shell structure" of the core-shell emulsion polymerization, the process is the first step in the emulsion polymerization of the formation of soft latex particles grafted hard monomer. The types and amounts of emulsifiers, the ratio of core-shell, shell monomer feeding, the degree of crosslinking of rubber latex (rubber core), the size of seed and the type and amount of crosslinking agent, and so on. The core-shell structure and ACR's final product performance have a significant impact. We know: plastic processing can not be separated from PVC processing aids, PVC processing aids is a very effective copolymer additives, the main role of this additive is to improve the plastic properties of PVC materials, through the stability of the performance of plastic The normal performance of the product, so that higher quality plastic products, longer life. According to the different needs of material
super high molecular weight SAN processing aid TF869/TP801
2021 / 12 / 25
SAN Processing Aid is a super high molecular weight processing aid ,it is a kind of super high molecular weight polymer which is copolymerized by styrene and acrylonitrile. It can promote PVC plasticization, obviously improve the thermal deformation temperature and surface smoothness of PVC products, and at the same time give PVC products higher surface hardness and rigidity.The processing performance is good, plasticizing quickly.It endow PVC products good surface finish. Compared with other ordinary processing aids, it has higher molecular weight which is above 5 million, the product has a good cost performance.The purpose of research and development the produc is in order to further reduce the production cost of the customer.In addition, our production field of SAN processing aid is include ABS, ASA, ABS/PC alloy, and has special requirements on heat resistance of PVC products. SAN processing aid promotes faster fusion, increases melt strength, enhances extensibility and improves melt homogeneity.Increases the surface quality of PVC products. It is a good general purpose processing aid that promotes a wide processing window improving PVC gelation, fusion fluidity and processing performance and are broadly used in PVC profiles, sheets, pipes, pipe fittings and foam products.
2021 / 12 / 25
SAN Processing AIDS are copolymerized with styrene and acrylonitrile. It is a kind of white powder, which can be widely used in various hard PVC products, for example, extruding products like PVC profiles, pipes & fittings, floors, and injection molding products like PVC soles, connecting parts for profiles, post cap, base, buckle plate, etc. Product Advantage SAN PROCESSING AIDS · Less using dosage and high efficiency. · Promote fusion, help the melt gel quickly and improve the thermal deformation temperature. · Improve the surface gloss of PVC product obviously. · Provide PVC products with properties of dimensional stability, heat-resistance and chemical resistance.
The role of microencapsulated flame retardants
2021 / 12 / 25
What is the role of microencapsulated flame retardants? ①The liquid flame retardant can be microencapsulated into a solid flame retardant, which can be directly blended with the polymer; Flame Retardant FP-2500S ②Choose a suitable shell material according to the flame-retardant substrate to increase the compatibility of the flame retardant with the polymer, thereby reducing or eliminating the adverse effects of a large amount of filled flame retardant on the physical properties of the polymer product; ③It can reduce the migration of the liquid flame retardant inside the polymer and the loss of the flame retardant dose in the polymer material due to the volatility of the liquid flame retardant; ④Reduce or avoid the release of toxic components in flame retardants during the processing of polymer materials and improve environmental p
Flame Retardant Mechanism of Antimony Trioxide
2021 / 12 / 25
Antimony trioxide itself has no flame retardant function, however, when it is used together with halogenated compounds, the synergistic effect of the mixture creates the flame retardant properties. Antimony trioxide reacts with halogenated compound and creates the chemical compounds, which generate the flame retardant function, through the following process. 1. 1. Stop action of thermal de-composite chain reaction under gas phase (Radical trap effect) 2. 2. Sealing action against oxygen under gas phase (Air sealing effect) 3. 3. The formation of carbonaceous char under the solid phase (Air sealing and adiabatic effect) NoNovista Group supplies equivalent of FP-2100JC, FP-2200S, FP-2500S, Exolit OP1230, OP930, OP1312, OP1314 to global market.
How Flame Retardant Systems Work In Plastics
2021 / 12 / 25
Each year, billions of pounds of flame retardant additives are used throughout the world. A variety of flame retardant chemistries, packages, or systems can be deployed in different polymers depending on the requirements of individual end-use applications. Some polymers are inherently flame retardant. Other polymers - including nylons, polyesters, polypropylenes and many other useful and cost-effective materials - are not. They must be modified to achieve the proper level of fire resistance through the use of flame retardant additives. Mechanisms for flame retardance in plastics Vapor Phase Inhibition During combustion, flame retardant additives react with the burning polymer in the vapor phase disrupting, at a molecular level, the production of free radicals and shuts down the combustion process. This mechanism is commonly used with halogenated flame retardant systems. Solid Phase Char-Formation Char-forming flame retardant additives react to form a carbonaceous layer on the material`s surface. This layer insulates the polymer, slowing pyrolysis, and creates a barrier that hinders the release of additional gases to fuel combustion. This method is commonly deployed by non-halogen systems using phosphorous and nitrogen chemistries. Quench & Cool
Introduction of Polymer Stabilizers
2021 / 12 / 22
In order to prevent the degradation of polymers during processing or use, polymer stabilizers are employed in accordance with the degradation mechanism of the relevant polymer. Due to the large differences in degradation mechanisms of polymers containing chlorine(stabilizers for polyvinyl chlorides), and those without chlorine, stabilizers that are suitable for each type of polymer should be chosen. In general, the same polymer stabilizers are used in most plastics, such as polypropylene, polyethylene, acrylonitrile butadiene styrene (ABS), and engineering plastics. The key to preventing the oxidative degradation of plastics is to terminate the radical reaction in the early stage of degradation, thereby terminating autoxidation. To achieve this, at least one, and preferably several, of the factors associated with the degradation scheme need to be eliminated. Many stabilizers prevent one of the elementary degradation reactions of plastics, thereby contributing to their stabilization. Stabilizers are categorized into a radical chain initiation inhibitor, a radical scavenger, and a peroxide decomposer, depending on the autoxidation stage at which the radical chain is inhibited. On the other hand, for this reason, the PVC stabilizers are designed to scavenge the chlorine atoms and hydrogen chloride formed in the degradation process. Designing Polymer Stabilizer Formulations Since the degradation reaction is complex, eliminating only one of the factors responsible for degradation is not sufficient to stabilize the polymer. Stated alternatively, simultaneously eliminating multiple degradation factors produces a large stabilizing effect. For example, in the case of polypropylene products for outdoor use, a phenolic antioxidant (radical scavenger) and phosphorus antioxidant (peroxide decomposer) are blended in to act as thermal stabilizers during processes such as molding, and an ultra
Everything You Need To Know About PVC Plastic-1
2021 / 12 / 22
What is Polyvinyl Chloride (PVC), and What is it Used For? Polyvinyl Chloride (PVC) is one of the most commonly used thermoplastic polymers worldwide (next to only a few more widely used plastics like PET and P.P.). It is naturally white and very brittle (before the additions of plasticizers) plastic. PVC has been around longer than most plastics, first synthesized in 1872 and commercially produced by B.F. Goodrich Company in the 1920s. By comparison, many other common plastics were first synthesized and commercially viable only in the 1940s and 1950s. It is used most commonly in the construction industry and is also used for signs, healthcare applications, and fiber for clothing. PVC was accidentally discovered twice, once in 1832 by French chemist Henri Victor Regnault, and then rediscovered in 1872 by a German man named Eugene Baumann.
Everything You Need To Know About PVC Plastic-2
2021 / 12 / 22
The Base Forms and Functions of Polyvinyl Chloride (PVC) PVC is produced in two general forms: a rigid or unplasticized polymer (RPVC or uPVC), and the second as a flexible plastic. In its base form, PVC is characterized by its rigid yet brittle structure. While the plasticized version holds various uses across multiple industries, the rigid version of PVC also has its share of uses. Industries such as plumbing, sewage, and agriculture can utilize rigid PVC across many functions. Flexible, plasticized, or regular PVC is softer and more amenable to bending than uPVC due to the addition of plasticizers like phthalates (e.g., diisononyl phthalate or DINP). Flexible PVC is commonly used in construction as insulation on electrical wires or in flooring for homes, hospitals, schools, and other areas where a sterile environment is a priority. In some cases, PVC can act as an effective replacement for rubber. Rigid PVC is also used in construction as a pipe for plumbing and siding, commonly referred to by the term "vinyl" in the United States. PVC pipe is often referred to by its "schedule" (e.g., Schedule 40 or Schedule 80). Significant differences between the schedules include things like wall thickness, pressure rating, and color. Some of PVC plastic's most important characteristics include its relatively low price, its resistance to environmental degradation (as well as to chemicals and alkalis), high hardness, and outstanding tensile strength for plastic in the case of rigid PVC. PVC remains widely available, commonly used, and easily recyclable (categorized by resin identification code "3").
The Internal And External Lubrication Of PVC Lubricant
2021 / 12 / 18
Lubricant is an indispensable additive in PVC processing. For lubricants, the commonly referred function in industry`s can be summarized in two points, they are: it reduces the friction pre-melting particles of polyvinyl chloride and the macromolecules in the polyvinyl chloride melt. It is actually the most typical summary of the two aspects of lubricant action (internal and external lubrication). Then, we will discuss and analyze the internal and external lubrication of PVC lubricant from the technical level for you. 1.Internal lubrication In terms of PVC, the internal lubrication of the lubricant and the plasticizer can be regarded as the same kind of material, playing the role of plasticizing or softening. The difference is that the polarity of the lubricant is lower and the carbon chain is longer. Therefore, compared with plasticizers, lubricants and PVC are less compatible. Lubricants are i
What will happen if PVC lubricant is not used well?
2021 / 12 / 18
What will happen if PVC lubricant is not used well? [Small dosage, large effect" . This sentence is an appropriate description of PVC lubricant. The function of PVC lubricant is no less than stabilizer in the role of PVC processing. Generally, its use needs to follow strict principles, such as slippery balance inside and outside, right amount moderate etc. If the degree of significance of PVC lubricant is not enough, and we do not follow principles that should be observed, what will happen if PVC lubricant is not used well? A.Imbalance of internal and external lubrication. Too much external lubrication. The extrusion speed is fast, the material is easy to produce, and the plasticization is not good. Too much internal lubrication. There will be large extrusion and poor plasticization of materials. Poor initial lubrication will make the extrusion torque larger. Insufficient lubrication in the later stage will lead to insufficient lubrication in screw homogenization section, compression section and die section, violent shear of materials, which will affect the surface quality and internal performance of extruded products. More seriously, it even causes decomposition. B.Excess lubricant. C.Excess lubricant is not always better. Lubricant is incompatible with PVC resin. Too much lubricant will have a bad effect on PVC blending system. Lubrication of internal and external balance, is balance within a certain limit because the mixing system of lubricant and PVC has bad effect. In the actual production, there are many processing problems related to thermal stability and many defects of the products. The root cause may be the excessive amount of lubricant.
mechanism of internal lubricant TL60
2021 / 12 / 18
Internal Lubricant TL60 is actually a polyols phthalic acid ester, it has excellent dispersion and good transparency. equivalent performance with LOXIOL G60. It can be used in all kinds of PVC products application as an internal lubricant. The role of PVC lubricants is to reduce the internal friction between polymer molecular chains. It can optimize the processing characteristics of plastics and improve the rheology of the polymer melt by reducing melt viscosity and friction during processing. it helps reduce friction and viscosity of polymer melt after fusion and improve dispersion of filler. Application: 1.In the process of PVC product producing,it has well lubrication,non- precipitating,excess will not harmful. 2.In the process of PVC product producing,discharge stability,reduce melt pressure,improveliquidity. 3.Suggestion adding amount:0.3%-1% contact more with:mandyzhang@novistagroup.com
Glass fiber effects on plastics
2021 / 12 / 18
Glass fiber reinforced plastic is based on the original pure plastic, adding glass fiber and other additives to increase the use range of the material. Generally speaking, most of the glass fiber reinforced materials are mostly used in the structural parts of the product, which is a structural engineering material, such as: PP, ABS, PA66, PA6, PC, POM, PPO, PET, PBT, PPS, etc. What are the advantages and disadvantages of glass fiber reinforced plastics? advantage After glass fiber is reinforced, glass fiber is a high temperature resistant material. Therefore, the heat-resistant temperature of reinforced plastics is much higher than before without glass fiber, especially nylon plastics; After the glass fiber is reinforced, the addition of glass fiber limits the mutual movement of the polymer chains of the plastic. Therefore, the shrinkage rate of the reinforced plastic dro
Electrical and Electronic Equipment: Types of Flame Retardants Used in EEE Applications
2021 / 12 / 18
Flame retardants are an important component in reducing the devastating impact of fires on people, property and the environment. Their areas of application in electrical and electronic equipment (EEE) vary depending on the materials being used, the function of the product, and the level of fire resistance that must be achieved based on fire safety standards. Flame retardants have unique characteristics, and, as a result, need to be matched appropriately to the materials used. In wires and cables, for example, the flame retardants used must meet fire safety requirements developed specifically for these products because they have the potential for spreading a fire to the electrical socket, and to walls and curtains. The level of flame retardancy required for printed wiring boards used in consumer mobile phones is different than that of wiring boards used in computer servers or in telecommunications or aerospace applications. Higher electrical and mechanical performance demands must be met with flame retardants that can achieve higher flammability and fire resistance standards, without affecting a product`s performance specifications. When it comes to fire safety, one size does not fit all. Specific flame retardants must be selected carefully to meet fire safety standards, electrical and mechanical requirements. The following classes of flame retardants used in EEE include: · Bromine-based
EEE Products that Use Flame Retardants
2021 / 12 / 18
The use of electrical and electronic equipment (EEE) is pervasive everywhere we live, work and do business. We rely on these products and devices to work properly-and safely-and we rarely think about how they are made. Flame retardants are incorporated into a wide variety of electrical and electronic products used by consumers, businesses, and the medical and transportation industries to meet fire safety standards. These include complex electrical and electronic devices that demand high performance electrical properties, but must also have important fire-resistant characteristics, such as those used in military applications. The diverse EEE applications and product uses, from the USB ports and insulated cables we plug into our computers to the printed wiring boards in the control panels of jets, all have different flame retardant needs. As a result, flame retardant solutions are carefully matched to the materials used in each application. Learn more about how flame retardants work. Some of the many examples of products that rely on flame retardants to achieve flammability standards include: Consumer electronics (i.e., smart phones, TV sets, DVRs, laptops)
Innovations and Advances in PVC Technology-1
2021 / 12 / 16
Advancements in Polyvinyl Chloride (PVC) technology are improving for use in pipe, construction applications, wires and cabling, medical tubing, flooring, fabrics and other consumer items. As a thermoplastic resin, manufactured from industrial salts and carbon, PVC is also less dependent on oil or gas and considered a more natural resource. PVC Pipe PVC pipe is approximately 75% less expensive in use than PE pipe, (polyethylene HDPE). New advancements include PVC-O, oriented PVC and PVC-M, modified PVC. PVC-O has been successfully used in Australia for almost 20 years. This pipe is produced by re-aligning the molecules in PVC with Biaxial orientation. The pipe produced is considerably stronger, allowing the wall thickness to be reduced close to 50% while maintaining the same pressure strength.
Innovations and Advances in PVC Technology-2
2021 / 12 / 16
This pipe offers increased hydraulic capacity and requires less energy use in production than PVC-U and other materials. PVC-O is lighter in weight making it easier to transport and work with. The material retains its strength in a wide range of temperatures and is highly impact resistant. Fusible PVC is providing enormous benefits to trenchless technology. This pipe is extremely useful for replacing broken or damaged cast iron pipe. Cost savings are increased with a continuous pipe requiring no seal rings. Fusible PVC is being used in pressure and non-pressure lines and wastewater applications. Modifying polymers added to PVC produce PVC-M pipe. PVC-M shows superior strength and resistance to cracks or scratches. The pipe can also be made with a thinner wall, reducing the material cost, while still offering the same durability.
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Mr. Ron Han
Tel:86-536-8206760
Fax:86-536-8206750
Mobile Phone:+8615336365800
Email:manager.han@novistagroup.com
Address:RM1232-1233,#4 Building No.4778 Shengli East Street, Weifang, Shandong
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.