1、 Improve impact resistance performance

1. Absorb impact energy

-PVC profiles may be subjected to various external impacts during use, such as collisions, falls, etc. Impact modifiers can absorb impact energy through their own deformation when the profile is impacted, thereby reducing the stress on the profile and preventing it from cracking or being damaged.

2. Prevent crack propagation

-Even if PVC profiles produce small cracks when subjected to impact, impact modifiers can prevent further crack propagation. It can change the propagation path of cracks and increase the energy required for crack propagation by interacting with PVC molecules, thereby improving the impact resistance of profiles.

2、 Improve low-temperature toughness

1. Maintain material flexibility

-At low temperatures, PVC materials become hard and brittle, and are prone to fracture. Impact modifiers can maintain the flexibility of PVC profiles at low temperatures, allowing them to have a certain degree of toughness and be less prone to cracking when subjected to external forces.

2. Improve frost resistance

-Impact modifiers can also improve the frost resistance of PVC profiles. At low temperatures, water may seep into the interior of the profile. If the profile does not have good frost resistance, water will expand when it freezes, causing the profile to break. Anti impact modifiers can reduce the water absorption of profiles, minimize water infiltration, and act as a buffer when water freezes, preventing damage to profiles due to ice expansion.

3、 Enhance processing performance

1. Promote plasticization

-Impact modifiers can be better compatible with PVC resin, promote plasticization of PVC during processing, make materials easier to flow, reduce processing temperature and pressure, and improve production efficiency.

2. Improve melt flowability

-It can improve the fluidity of PVC melt, making it easier for profiles to fill molds during the molding process, reducing product defects, and improving product quality.

4、 Improve dimensional stability

1. Reduce shrinkage deformation

-PVC profiles may undergo shrinkage deformation during processing and use, affecting the dimensional accuracy and appearance quality of the products. Impact modifiers can reduce the shrinkage rate of PVC profiles, minimize shrinkage deformation, and improve the dimensional stability of profiles.

2. Prevent warping and deformation

-Impact modifiers can also prevent PVC profiles from warping and deforming during processing and use. It can improve the internal stress distribution of profiles by interacting with PVC molecules, making the shrinkage of profiles more uniform in all directions, thereby reducing the occurrence of warping deformation.

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