Polyester tackifying/nucleating special auxiliary agent, preparation thereof and application thereof in PET modification
A technology of polyester and nucleation, which is applied in the field of polyester viscosifying/nucleating special additives and its preparation and application in PET modification, which can solve the problems of long injection molding cycle, low crystallization rate, and few injection molding, etc. problems, to achieve low cost, improve molding performance, improve mechanical properties and heat resistance
Active Publication Date: 2019-08-27
ZHEJIANG JINLIDA NEW MATERIAL TECH CO LTD
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Abstract
The invention discloses a polyester tackifying/nucleating special auxiliary agent, preparation thereof and application thereof in PET modification. The polyester tackifying/nucleating special auxiliary agent is inorganic nonmetal particles with functional groups and short-chain alkyl groups on the surfaces, wherein the inorganic nonmetal particles are obtained by conducting surface modification oninorganic nonmetal particles through a silane coupling agent; the silane coupling agent is composed of at least one silane coupling agent with the function groups at the terminals and at least one silane coupling agent with the short-chain alkyl groups at the terminals, the functional groups are groups capable of reacting with -OH or -COOH at polyester molecular chain terminals, and the carbon number of the short-chain alkyl groups is 3-8; the surfaces of the inorganic nonmetal particles contain hydroxyl groups or carboxyl groups, and the particle size of the inorganic nonmetal particles is within the range of 10-200 nm. By means of the auxiliary agent, polyester tackifying and induced crystallization nucleation can be achieved simultaneously. The invention further provides a PET modification method which is simple, low in cost and capable of achieving PET tackifying and induced crystallization nucleation simultaneously.
Technology Topic
PolyesterSilane coupling +8
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