High and low temperature-resistant low-fogging degree functional environment-friendly plasticizer

Abstract

The invention discloses a high and low temperature-resistant low-fogging degree functional environment-friendly plasticizer, comprising phthalic anhydride, n-C10 alcohol, C10 linear alcohol, n-C12 alcohol, C12 linear alcohol, a catalyst, an alkali solution and an accessory material. The phthalic anhydride undergoes an esterification reaction with fatty alcohol and produces phthalic acid fatty ester under the action of the catalyst, and the phthalic acid fatty ester is subjected to dealcoholization, neutralization and refining so as to obtain the finished plasticizer. A formula for the plasticizer comprises 30 to 50 parts of the phthalic anhydride, 60 to 120 parts of n-C10 alcohol and / or C10 linear alcohol, 15 to 30 parts of n-C12 alcohol and / or C12 linear alcohol, 0.01 to 0.1 part of the catalyst, 0.2 to 1.5 parts of the alkali solution (with a concentration of 5 to 15%) and 0.05 to 1 part of the accessory material According to the invention, a nonacid titanate catalyst is preferably used for the esterification reaction; the prepared plasticizer is capable of resisting both high temperature and cold; production cost is saved; low volatility is obtained; the characteristics of the prepared plasticizer can be maintained for a longer time; and the plasticizer is applicable to production and manufacturing of automotive trimming products.

Description

Technical field [0001] The invention relates to the technical field of a functional environmental protection plasticizer, in particular to a functional environmental protection plasticizer with high and low temperature resistance and low degree of fogging. Background technique [0002] Plasticizers are the largest additives in the modern plastics industry and play a decisive role in promoting the development of the plastics industry, especially the polyvinyl chloride industry. With the rapid development of various plastic raw materials, plasticizers have become one of the indispensable auxiliary raw materials in the processing technology of plastic products. Plasticizers are mostly liquid esters with high boiling points. Adding to the resin in a certain proportion can change the properties of the resin, such as increasing the flexibility of the plastic, improving the temperature resistance, improving the usability of plastic products at low temperatures, reducing the viscosity o...

AI Technical Summary

Problems solved by technology

However, in the selection of ester groups, most plasticizers use short-chain alcohols or isomeric alcohols, resulting in general-purpose plasticizers being added to products that can only withstand low or high temperatures. Adding two or more plasticizers in combination will result in increased costs, increased additions, and environmental pollution; general-purpose plasticizers are added to products due to their high volatility and are easy to volatilize in products, resulting in product failures. Accelerated aging, cracking and other defects

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