The impact resistance of the hottest plastic profi

The impact resistance of plastic profiles needs to be improved

in recent years, the price of domestic PVC raw materials has increased significantly, which has led to an increase in the price of some building materials. However, due to the oversupply of plastic doors and windows in the market, the price of plastic profiles and doors and windows has fallen all the way, and some production enterprises are in a state of loss ". The only effective way out for plastic door and window enterprises is to replace the original inefficient, toxic formula additives after the founding conference by the development and application of new high-efficiency, low lead, non-toxic and anti microbial formula additives, so as to improve the performance and documentation of products and form different characteristic products, so as to widen the distance in price and meet the needs of different climatic fields, different grades of buildings and consumer groups

in severe cold and cold areas, impact modifier should be appropriately added or new impact modifier ACR should be used to replace the original impact modifier CPE to improve the impact resistance of plastic profile

in hot areas with high UV radiation intensity, the dosage of titanium dioxide and UV absorber should be appropriately increased to improve the aging resistance of plastic profiles

in high-rise buildings in coastal areas, profiled materials with Class A and B wall thickness (2.8mm or 2.5mm) and large cavity should be used to improve the wind pressure resistance of plastic doors and windows

adopt lead-free or low lead formula such as calcium, zinc, rare earth or organotin stabilizer to replace the lead salt formula, so as to meet and enhance the environmental protection awareness of some consumer groups. At present, strictly limiting the lead content in products has become a basic national policy of many developed countries. China still has a considerable gap in this regard, which should be improved

in recent years, two breakthroughs have been made in the application research of calcium carbonate: first, fatty acids and various coupling agents are used to treat the surface of calcium carbonate to improve its surface activity and affinity with PVC molecules; Second, the calcium carbonate particles are refined to increase the electrical quantity between them and PVC molecules, which often needs to be amplified for compatibility and dispersion. The development and production of activated micro light calcium carbonate and nano calcium carbonate provide a certain space for reducing the cost of raw materials on the premise of ensuring the physical and chemical properties of plastic profiles

that is, on the basis of different fixtures

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