Preparation method of high-hardness and impact-resistant acrylic resin

An acrylic resin and impact-resistant technology, which is applied in the field of high-hardness and impact-resistant acrylic resin and its preparation and coatings, can solve the problems of reducing the hardness of the coating, achieve excellent hardness and impact resistance, and achieve the effect of reasonable preparation process design

Inactive Publication Date: 2017-10-10
江苏三木化工股份有限公司 +1
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Problems solved by technology

[0002] Impact performance is a conventional performance of coatings, mainly in automotive coatings, engineering machinery coatings, etc. The requirements are rel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1, a kind of preparation method of high hardness impact-resistant acrylic resin, it may further comprise the steps:

[0019] (1) Evenly mix 42 grams of methyl methacrylate, 6 grams of butyl acrylate, 8 grams of hydroxybutyl acrylate, 1.5 grams of acrylic acid, and 2.25 grams of TBPB (90% of the total amount) to obtain mixed monomers;

[0020] (2) 40 grams of xylenes are dropped into the reactor, heated to a reflux state;

[0021] (3) Put the homogeneously mixed monomer in step (1) into the dropping tank, and drop the mixed monomer evenly in 2.5-3 hours; after the dropping is completed, keep the reaction under reflux for 2 hours; after the heat preservation is completed; add The remaining initiator is 0.25 g (10% of the total amount); continue to react under reflux for 2 hours, and cool down to 100 degrees to obtain an acrylic resin.

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Abstract

The invention discloses high-hardness and impact-resistant acrylic resin and a preparation method thereof. The high-hardness and impact-resistant acrylic resin is prepared from the following raw materials in percentage by weight: 30 to 35 percent of methyl methacrylate, 7.4 to 10 percent of hydroxybutyl acrylate, 2.5 to 5 percent of butyl acrylate, 1 to 2 percent of acrylic acid, 2 to 3 percent of initiator and 30 to 50 percent of organic solvent. According to the preparation method, the raw material composition and an optimal synthetic process are selected through abundant experiments; a prepared and obtained acrylic resin coating has excellent adhesive force, is good in luster, and further has excellent hardness and impact-resistant performance; a quite good technical effect is obtained.

Description

technical field [0001] The invention relates to a coating, in particular to an environment-friendly, high-hardness and impact-resistant acrylic resin and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] Impact performance is a conventional property of coatings, mainly in automotive coatings, engineering machinery coatings, etc. The requirements are relatively high. At present, the commonly used thermosetting acrylic resin will inevitably reduce the hardness of the coating while improving the impact performance. From a structural point of view, the impact performance of the coating is related to the isooctyl acrylate with a relatively long ester chain used in the synthesis of the resin. The present invention uses hydroxybutyl acrylate so that the resin can still have good impact performance under relatively high hardness. Contents of the invention [0003] Purpose of the invention: the purpose of the present ...

Claims

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Application Information

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IPC IPC(8): C08F220/14C08F220/28C08F220/18C08F220/06C09D133/12
CPCC08F220/14C09D133/12C08F220/281C08F220/1804C08F220/06
Inventor 薛正彪惠正权
Owner 江苏三木化工股份有限公司
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