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The anti-aging properties of PVC stabilizers are expressed through the anti-aging properties of PVC profiles. The anti-aging performance of PVC stabilizers in PVC profiles is manifested in two aspects, on the one hand, to ensure the thermal stability of the PVC molecular chain during thermal mixing and processing, and on the other hand, to ensure the thermal stability of the PVC molecular chain during the use of PVC profiles. To achieve these two aspects, the anti-aging performance of the stabilizer itself is particularly important. If the anti-aging performance of the PVC stabilizer is not good, the resulting color-changing molecules will cause the decomposition of the PVC molecular chain, which will not only prevent the decomposition of the PVC resin, but will accelerate the aging rate of the PVC resin. Therefore, evaluating the anti-aging performance of the PVC stabilizer itself is an important prerequisite for ensuring the anti-aging performance of the PVC profile. The evaluation content of the stabilizer: itself should have good thermal stability, light stability, in the thermal processing, preservation and use of the process does not change color, not colored. Here, we can also take the following four test methods to evaluate the anti-aging properties of the stabilizer: 1, PVC stabilizer itself outdoor sunlight; 2, PVC dry mix static thermal stability time; 3, PVC dry mix outdoor sunlight; 4, PVC profile artificial light aging irradiation test.

It is undeniable that Western industrial countries have formulated regulations and promulgated these policies because they are technically mature and economically affordable. The market share pursued by Chinese companies is the public use and use value of products. Therefore, they have failed to deal with the development and application of alternative products, which has led to the further increase in environmental protection pressure and the serious deterioration of the export situation. Today, most companies are helpless, production and operation are in trouble. Therefore, when we once again regard the above-mentioned environmental protection laws and regulations, laws and the current use of stabilizers in China, our auxiliary production and plastic products processing industry should have long-term effective planning, reduce or give up the production and use of lead and cadmium heavy metal stabilizers, and use more mature and environmentally friendly stabilizers instead.

Sulfur-containing organotin stabilizers are mainly mercaptan organotin and organotin sulfides, which are currently more common stabilizers, but their odor is large, toxic and environmentally unfriendly. Monoalkyltin thiols and dialkyltin thiols are often used in combination to improve the initial colorability and long-term stability of PVC. It can be used for the stabilization of all polymers, with complete crystal-like transparency, and all organotin PVC stabilizers can do this through appropriate formulations.