PVC WINDOW AND PROFILE IMPACT MODIFIER

PVC WINDOW AND PROFILE IMPACT MODIFIER Specification

Shelf Life
2 Years

HS Code
390690

Product Type
General chemical

Properties
ACM impact modifier is a high-performance toughening solution for PVC door and window profiles, achieving the triple advantages of "low-temperature impact resistance+weather resistance+easy processing" through an interpenetrating network structure. It effectively solves the shortcomings of traditional modifiers (poor weather resistance of CPE, insufficient room temperature toughness of ACR, and non weather resistance of MBS), and is an ideal choice for improving the durability, outdoor stability, and production efficiency of doors and windows.

Taste
Other

Shape
other

Usage
6~10

Physical Form
Powder

Smell
Other

Purity
100%

Application
Industrial

Poisonous
NO

Melting Point
100

Storage
Room Temperature

Ingredients
HDPE

Appearance
White powder

About PVC WINDOW AND PROFILE IMPACT MODIFIER

ACM is a high-performance impact modifier designed specifically for hard PVC door and window profiles. Its core is an interpenetrating network (IPN) structure of CPE grafted acrylic ester, which balances low-temperature toughness, weather resistance, and processability. It is the preferred solution to replace traditional CPE and ACR.

1 Product essence and working principle

1. Molecular structure

Made by interpenetrating network polymerization of lightly chlorinated HDPE (CPE) and core-shell structured acrylic ester, it combines the toughness of CPE with the weather resistance and compatibility of acrylic ester.

Core: A low glass transition temperature, lightly crosslinked acrylic elastomer that absorbs impact energy.

Shell: Methacrylate highly compatible with PVC, ensuring uniform dispersion in the PVC matrix.

Interpenetrating network: forms a stable cross-linked structure, enhances overall strength and heat resistance.

2. Toughening mechanism

When impacted, the elastic core undergoes deformation, triggering silver lines and shear bands, absorbing and dispersing impact energy, and preventing crack propagation.

The interpenetrating network structure enhances the intermolecular forces between PVC molecular chains, balancing toughness and rigidity, and solving the problem of pure PVC being brittle at low temperatures and lacking toughness at room temperature.

2 Core advantage (compatible with PVC door and window profiles)

1. Impact resistance performance (core selling point)

Excellent low-temperature impact resistance: In environments ranging from -10 to -20 , the impact strength is significantly better than CPE, making it suitable for doors and windows in cold regions.

Room temperature toughness balance: high elongation at break, strong resistance to impact and wind pressure, and less prone to cracking.

Enhancement of fillet welding strength: improves the toughness of the welded section of the profile and reduces the risk of cracking at the welded section.

2. Weather resistance and outdoor stability (essential for doors and windows)

UV/aging resistance: The molecular chain has no double bonds, and is resistant to ozone and weather, which is better than CPE/MBS. It is not easy to yellow or powder when used outdoors for a long time.

Dimensional stability: High thermal deformation temperature, not easily deformed at high temperatures, ensuring door and window sealing and appearance.

3. Processing adaptability (pain points for profile factories)

Fast plasticization and good fluidity: promote PVC melting, reduce extrusion torque, improve production efficiency, and adapt to high-speed extrusion lines.

Excellent surface gloss: The product has a smooth surface and high gloss, and can meet the standard without the need for additional processing aids.

Low addition amount: usually 6-10 phr (100 parts of PVC), the overall cost is better than traditional modification schemes.

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