How to distinguish the quality of environmentally friendly plasticizers, and how to distinguish the good from the bad?

” >Environmentally friendly plasticizerRefers to organic substances that add plasticizers to plastics, improve the fluidity of the resin during molding and processing, and make the products flexible. It is more popular in the current market that promotes environmental protection, but when purchasing environmentally friendly plasticizers For friends, it is very important to identify the quality of environmentally friendly plasticizers. Let me briefly explain to you how to distinguish the quality of environmentally friendly plasticizers.

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” >1. Environmentally friendly plasticizer and resin Compatibility. Generally speaking, only if the additive has good compatibility with the resin can the additive be stored in the product stably and evenly for a long time and effectively perform its function. If the compatibility is not good, then It is easy to “sweat” or “spray” phenomenon, but sometimes the compatibility is not good and the product requirements are not too strict, there can still be poor compatibility, such as fillers and trees The compatibility between waxes is poor. As long as the particle size of the filler is small, it can still basically meet the performance requirements of the product. Obviously, it can be treated with a coupling agent or surfactant to fully exert its function.

2 , Environmentally friendly plasticizer‘s durability additive loss mainly volatilizes through three pathways, and extraction and migration are mainly related to the additive’s The molecular weight is related to the solubility in the medium and the degree of decomposition in the resin.

3 , Adaptability of environmentally friendly plasticizers to processing conditions: The processing conditions of some resins are more stringent, such as high processing temperatures, so the selection should be considered Whether the additive will decompose and whether the additive will corrode the mold and equipment.

4 , Restrictions on additives by product use: Products with different uses have certain odor, electrical properties, weatherability, thermal properties, etc. of additives requirements.

” >5. Synergy in plasticizer combination In the same resin system, sometimes two of the additives will produce a “synergistic effect”, which can achieve a much greater effect than using a certain additive alone. However, if used togetherIf the two additives are not combined properly, the “antagonism” between the two additives will weaken the function of each additive, and even make certain additives lose their effect. Special attention should be paid to this. For example, if carbon black is used together with amine or phenolic oxygen disruptors, There will be a confrontational effect.