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Company Info
Shandong Novista Chemicals Co.,Ltd (Novista Group)
Business Type:
Manufacturer , Service , Distributor/Wholesaler
Main Products:
Chlorinated Polyethylene CPE , Chlorinated Polyvinyl Chloride , CPVC Resin & Compound , PVC Processing Aids&Stabilizer , Acrylic Impact Modifier , Flame Retardant
Export Percentage:
71% - 80%
Year Established:
1998
Company News
Exolit OP1400 VS ProFlam-PN4131
2023 / 12 / 05
ProFlam-PN4131 is a non-halogenated flame retardant based on organic phosphinates for reinforced polyamide 6, polyamide 66 and high temperature polyamides. The product achieves its flame retardant effect through a combined gas phase and condensed phase mode of action. It can replace Exolit OP1400 which is launched by Clariant recently. Benefits: -Suited for applications in hot and humid environments -Outstanding thermal stability - widest processing window -UL 94V-0 rating down to 0.4 mm thickness -The flame retardant polyamide compounds exhibit very good physical and excellent electrical properties -Low material density -Good colorability -Good contrast in laser marking -Non-halogenated flame retardants with favorable environmental and health profile -Shows a high-potential for mechanical recycling while maintaining the flame retardancy and other properties. -Don't include Melamine Polyphosphate Applications: PN4131 was developed especially for use in polyamides. It is suited for polyamide 6 and 66 as well as polyphthalamides and other high temperature polyamides, e.g. PA 46, for both glass-fiber-reinforced and unreinforced grades. The flame retarded polyamide compounds exhibit ve
The most practical PVC processing aid
2023 / 07 / 22
The most practical PVC processing aid Its structure is between the two structures, such as ABS. Specific varieties of PVC resin are: (1) Chlorinated polyethylene (CPE): A powdery product that uses HDPE to suspend chlorination in the water phase. As the degree of chlorination increases, the original crystalline HDPE gradually becomes an amorphous elastomer. CPE used as a toughening agent generally contains 25%-45% Cl. In the production of PVC pipes and profiles, most factories use CPE. The amount added is generally 5-15 parts. (2) ACR: It is the best impact modifier developed in recent years, which can increase the impact strength of materials dozens of times. It is suitable for impact modification of PVC plastic products used outdoors. It is used in PVC plastic door and window profiles. It has the characteristics of good processing performance, smooth surface, good aging resistance, and high weld angle strength, but the price is about 1/3 higher than CPE. (3) MBS: The solubility parameter is between 9.4 and 9.5, which is close to that of PVC, so it has better compatibility with PVC. After adding PVC, it can be made into a transparent product. Generally, adding 10-17 parts to PVC can increase the impact strength of PVC by 6-15 times, but when the amount of MBS added is 30 parts larger, the impact strength of PVC will decrease instead. The price of MBS is relatively high, and it is often used together with other additives such as EAV, CPE, and SBS. MBS has poor heat resistance and poor weather resistance, so it is not suitable for long-term outdoor use, and generally does not need to be used as plastic door and window profiles. (4) ABS: It is mainly used as engineering plastics, and also used as PVC impact modification, and the effect of low temperature impact modification is also very good. When the amount of ABS added reaches 50 parts, the impact strength of PVC can be equivalent to that of pure ABS.
Characteristics of additives used in the processing of PVC
2023 / 07 / 22
PVC processing requires the use of many additives, thanks to which it is possible to obtain products for different purposes and with different levels of flexibility.PVC is very easily modified and therefore its properties can be freely customized to very different requirements depending on the intended use.Modification is accomplished through the appropriate selection of PVC blend components.A variety of stabilizers, plasticizers, impact and flow modifiers, fillers, and other additives are used to produce PVC plastics. A feature that distinguishes PVC from other thermoplastic materials is the ability to modify its physical and mechanical properties via plasticizing, which has long been a widely used means of modification.Plasticizers are added to PVC in order to achieve the required level of flexibility of the end product.Their main task is to decrease the Tg (the glass transition temperature) of the PVC, which in turn leads to a lowering of the gelling and moulding temperature during processing.This also leads to a permanent improvement of the properties of the polymer, including itsflexibility, impact resistance and resistance to low temperatures.Plasticizers, which this article provides a general overview of, are one of the wide array of additives used in PVC processing. They will be discussed in more detail in subsequent articles.Plasticizers can be classified based on different criteria, such as: – process characteristics (high-temperature, low-temperature plasticizers), – type of chemical (phthalates, phosphates, polyesters etc.), – molecular weight (monomeric, polymeric). The most common plasticizer groups include: phthalic acid esters (DEHP, DIDP, DINP) (DTDP), adipic acid esters (DINA), (DIDA) – added to products used in low temperatures, sebacic acid esters (DBS), (DOS) – provide PVC plastificates with resistance to low tem
Send Inquiry
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.