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.


Price:
Price 140000.0 INR / Ton
Minimum Order Quantity : 1 Ton
Properties : Excellent compatibility with PVC, reduces melt viscosity, and improves processing
Shelf Life : 12 months
Physical Form : Solid
HS Code : 38122000
Price 1850.0 USD ($) / Ton
Minimum Order Quantity : 1 Ton
Properties : Acrylic processing aids (ACR) are polymeric acrylate powders copolymerized from methyl methacrylate and acrylates. Exhibiting excellent compatibility with rigid PVC resin, they serve as indispensable rheological aids for the extrusion and injection molding of PVC shutters. PVC shutters often feature thinwalled, narrow slats, foamed structures, or transparent designs. Pure PVC tends to exhibit slow plasticization and insufficient melt strength, leading to defects such as strand breakage, surface ripples, uneven thickness, pitting, and "fisheyes" during highspeed production; ACR effectively resolves these processing challenges.
Shelf Life : 2 Years
Physical Form : Powder
HS Code : 390690
Price 2700.0 USD ($) / Ton
Minimum Order Quantity : 1 Ton
Properties : Compared with traditional lubricants, lowdensity oxidized wax provides more stable and professional lubrication for CPVC production. It optimizes processing efficiency while fully guaranteeing the comprehensive performance of finished products.
Shelf Life : 2 Years
Physical Form : Powder
HS Code : 390490
Price 1800.0 USD ($) / Ton
Minimum Order Quantity : 1 Ton
Properties : Ingredients: Acrylic copolymer (high molecular weight), such as ACR401, 530. Core functions: Accelerate plasticization (shorten 30% 50% time), improve melt strength and elasticity, improve rheology, prevent melt fracture/shark skin, enhance gloss and impact strength. Adaptation: Water supply/drainage pipes and fittings, hygienic and nontoxic, in compliance with drinking water standards.
Shelf Life : 2 Years
Physical Form : Powder
HS Code : 390690