A kind of hyperbranched polyester and its synthesis method and a kind of thermoplastic resin composition and its preparation method
A thermoplastic resin and hyperbranched polyester technology, which is applied in the field of polymers, can solve the problems of hyperbranched polyester end-capping modification, etc., and achieve the effect of promoting dispersion performance and improving the decline in toughness
Active Publication Date: 2022-07-19
WUHAN JINFA TECH CO LTD +1
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Problems solved by technology
However, there is no end-cap modification to hyperbranched polyester to improve the toughness of thermoplastic resins, especially the toughness of nano-inorganic filler-filled thermoplastic resin compositions
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0040] The present invention will be further described below through specific embodiments. The following examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the following examples.
[0041] The raw materials used in the present invention are as follows, but are not limited to the following raw materials:
[0042] Polypropylene: Sinopec, EP548R, polypropylene copolymer;
[0043] Polyethylene: high density polyethylene, DMDA8008;
[0044] Polyamide: PA66, EP-158;
[0045] Hyperbranched polyester A with vinyl end capping groups: home-made, synthesis of AB by esterification polycondensation between trimellitic anhydride and ethylene glycol 2 AB is synthesized by esterification polycondensation reaction between trimellitic anhydride and ethylene glycol with trimellitic anhydride as the core 2 The monomer is reacted to obtain an uncapped hyperbranched polyester, and then 2-acrylamido-2-methylpropanesulfonic ...
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The invention discloses a hyperbranched polyester and a thermoplastic resin composition, comprising the following components in parts by weight: 60-85 parts of thermoplastic resin; 1-12 parts of hyperbranched polyester whose end capping group contains vinyl group parts; vinyl-containing end capping groups account for 3%-100% of the total number of hyperbranched polyester end groups. Hyperbranched polyesters containing vinyl end groups can improve the toughness of thermoplastic resins. Moreover, if nano inorganic fillers are added, the hyperbranched polyester can improve the dispersibility of nano inorganic fillers in thermoplastic resin compositions, and also isolates a large number of nano inorganic fillers from direct contact with thermoplastic resins, thereby improving and improving the performance of nano inorganic fillers. The decrease in toughness caused by the addition.
Description
technical field [0001] The invention relates to the technical field of polymers, in particular to a hyperbranched polyester and a synthesis method thereof, a thermoplastic resin composition and a preparation method thereof. Background technique [0002] The lightweight of automobiles is an important direction for the development of the automobile industry. Nano inorganic fillers are added to increase the strength of the material, but the addition of a large amount of fillers will also reduce the toughness of the material. The general solution to the decrease in toughness is to modify nano-inorganic fillers: nano-montmorillonite (MMT) with two-dimensional layered structure has the characteristics of cation exchange, intercalation and interlayer exfoliation into 1nm thick lamellae between the lamellae. , has become an excellent filler for the preparation of polymer nanocomposites. However, the above-mentioned polypropylene / montmorillonite composite materials have the defects ...
Claims
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IPC IPC(8): C08G63/91C08G63/127C08L23/14C08L23/06C08L77/06C08L67/07C08K3/34
CPCC08G63/914C08G63/127C08L23/14C08L23/06C08L77/06C08K2201/011C08L2207/062C08L67/07C08K3/346
Inventor 陈瑶何浏炜程文超陈胜杰熊值付伟赖昂王传新李文昭
Owner WUHAN JINFA TECH CO LTD