Plasticizer Is Good At Light And Stable Performance
Plasticizer is a kind of polymer material additive, its variety is a colorless, tasteless liquid, widely used in industry. Often used in plastics, rubber, adhesives, cellulose, resins, medical equipment, cables and other thousands of products. The main varieties of epoxy plasticizers: epoxidized soybean oil, Plasticizer epoxidized acetyl linseed oil methyl ester, epoxy furfuryl oleate ester and so on. In PVC products, the characteristics of plasticity and stability are widely used. Epoxy plasticizer is a kind of good plasticizer, Plasticizer which is produced by the oxidation reaction of the natural grease in the organic peroxide acid, the toxicity is very small, the outstanding advantage is non-toxic, heat-resistant and light stable performance.
Plasticizer plays an indispensable role in high quality plastic products. Its variety structure is constantly adjusting and changing, the development speed of new technology is speeding up, the newer variety is more and more, the detection means are more advanced, the evaluation method is more reasonable, Plasticizer and the plasticizer is improving in the cycle of "development-application-toxicology test-risk assessment-redevelopment". Therefore, the correct use of plasticizers is the industry can be healthy development of the key. To do this, plasticizer enterprises should work the structural adjustment. Abroad is being vigorously promoted as non-toxic or environmentally friendly and biodegradable plasticizers.
Plasticizers are usually a "class of solvents" substances, added to plastics, Plasticizer resins or elastomers and other substances can improve their processing, increase plasticity, flexibility, tensile or expansive substances. Adding plasticizer can reduce the melt viscosity, glass temperature and elastic modulus of the elastomer without changing the basic chemical properties of the plasticized material.
Plasticizers can change the properties of polymers and are generally considered:
The ① plasticizer isolates the polymer's macromolecules from the distance, weakening the intermolecular Force (attraction) of the polymer, which weakens the van der Waals force between the resin molecules;
Non-polar plasticizers were added to nonpolar polymers, Plasticizer which cut off the polarity of the polymer molecules, so that they did not have a polar connection, which ② the dipole-dipole interaction between the polymer molecules.
③ plasticizers are combined with resins, rather than chemically bonded (covalent bonds).
Therefore, where the resin can be mixed evenly, mixing without chemical reaction, Plasticizer after mixing can change some of the properties of the resin, can be retained in plastic products for a long time, change the nature of plastic products, can be used as plasticizers. The substances with these functions are many liquid organic compounds or low melting point solids. They must have polarity, can be compatible with resin, in the resin for a long time, Plasticizer the resin has good performance, high efficiency and cheap.