PVC Processing Aid

PVC Processing Aid Specification

Product Type
General Processing Aid

Application
Industrial

Grade
Industrial

Physical Form
Powder

Solubility
Insoluble In Water

Purity
99%

Storage
Room Temperature

PVC Processing Aid Trade Information

Minimum Order Quantity
10 Tons

Payment Terms
Cash Advance (CA)

Supply Ability
100000 Tons Per Month

Delivery Time
3 Week

Main Export Market(s)
Western Europe, Middle East, Central America, North America, South America, Eastern Europe, Asia, Australia, Africa

Main Domestic Market
All India

About PVC Processing Aid

PVC Processing Aid is an additive used to improve the processing performance of polyvinyl chloride (PVC). Its main function is to promote PVC melting, increase melt strength, improve surface quality, and reduce processing defects. Due to poor thermal stability and high melt viscosity, PVC is prone to problems such as melt fracture and surface roughness during processing. The addition of processing aids can significantly optimize its processing performance.

PVC processing aid can promote melting, increase friction between PVC particles, accelerate melting speed, and make plasticization more uniform; Improve melt strength, prevent melt fracture, reduce extrusion swelling, and enhance processing stability; Improve surface smoothness, reduce surface defects such as flow marks and shark skin, and enhance the appearance quality of products; Enhance thermal stability, some processing aids can assist with thermal stabilizers to reduce PVC degradation; Optimize the processing window to maintain good processability of PVC over a wider temperature range.

PVC processing aid is mainly divided into acrylic processing aid and San processing aid. Acrylic processing aid, such as polymethyl methacrylate (PMMA) based processing aids, have high melt strength, good surface finish, and are suitable for both hard and soft PVC. Mainly used in profiles, pipes, sheets, and transparent products. SAN processing aid, with lower cost but slightly inferior performance to ACR, is mainly suitable for general PVC products such as cables and films.

Features	ACRYLIC processing aid	SAN processing aid
Main components	Acrylic ester copolymer	Styrene Acrylonitrile copolymer
Melting promotion effect	(Extremely strong)	(Medium
Melt strength	High (suitable for complex extrusion)	Low (suitable for simple molding)
Transparency	Excellent (can be used for transparent products)	Fair (may slightly yellow)
Cost	High	Low
Typical applications	profiles, transparent sheets, medical pipes	sheets, cable sheaths, flooring

The product is mainly used in industries such as PVC pipes, PVC profiles (doors and windows), PVC films, PVC transparent sheets, wires and cables.

PVC processing aids are crucial in PVC processing, especially for hard PVC products such as pipes and profiles. ACR processing aid has become the mainstream choice due to its excellent melt strength and surface finish, while SAN processing aid is suitable for cost sensitive applications. In the future, with the advancement of PVC processing technology, high performance, environmentally friendly, and multifunctional processing aids will become a development trend.

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