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The manufacture method of modified unsaturated polyester resin

A technology of polyester resin and manufacturing method, which is applied in the manufacturing field of modified unsaturated polyester resin, can solve the problems of easy aging and poor mechanical strength, and achieves the effect of simple and convenient manufacturing method.

Inactive Publication Date: 2011-12-21
黄汉平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing unsaturated polyester resin is easy to age and has poor mechanical strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The batching of the modified unsaturated polyester resin of the present invention is formed by mixing 1 gram of p-toluenesulfonyl hydrazide (TSH) and 60 kilograms of polyester prepolymer and fully stirring. Then, after mold inversion → curing → demoulding, the modified unsaturated polyester resin I can be formed.

Embodiment 2

[0025] Example 2: Change the consumption of p-toluenesulfonyl hydrazide to 5 kg, repeat the operation described in Example 1, and obtain modified unsaturated polyester resin II.

Embodiment 3

[0026] Example 3: Change the amount of p-toluenesulfonylhydrazide to 3 kg, repeat the operation described in Example 1, and obtain modified unsaturated polyester resin III.

[0027] The above-mentioned modified unsaturated polyester resins I-III have good aging resistance, but the curing speed is too fast, the production operation is not easy to control, easy to generate bubbles, and easy to generate cracks, so they are placed together with unmodified unsaturated polyester resin for outdoor exposure Five years later, the unmodified unsaturated polyester resin obviously turned yellow and became brittle, while the color and luster and physical and mechanical properties of the above-mentioned modified unsaturated polyester resin I-III had no obvious change.

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PUM

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Abstract

The present invention relates to a manufacturing method of modified unsaturated polyester resin. The existing unsaturated polyester resin is easy to age and has poor mechanical strength. For this reason, the manufacturing method of the modified unsaturated polyester resin of the present invention comprises the steps of compounding → pouring → curing → demolding, and the compounding contains polyester prepolymer, and is characterized in that: the compounding is also mixed with a sulfonyl hydrazide-based antioxidant. For the aging product, the dosages of the sulfonyl hydrazide-based anti-aging product and the polyester prepolymer in the ingredients are respectively 0.001-5 parts by weight: 60-90 parts by weight. The present invention also relates to modified unsaturated polyester resins and flooring. The modified unsaturated polyester resin of the present invention has the advantages of anti-aging, beautiful appearance, firmness and wear resistance.

Description

technical field [0001] The invention relates to a manufacturing method of modified unsaturated polyester resin. Background technique [0002] The existing unsaturated polyester resin is easy to age and has poor mechanical strength. Contents of the invention [0003] The technical problem to be solved by the present invention is how to overcome the above-mentioned defects of the existing unsaturated polyester resin, and provide a method for manufacturing an aging-resistant modified unsaturated polyester resin. [0004] In order to solve the above-mentioned technical problems, the manufacturing method of the modified unsaturated polyester resin of the present invention includes batching→inverting the mold→curing→release, and the batching contains polyester prepolymer—such as coating resin 6688, which is characterized in that: The above ingredients are also mixed with sulfonyl hydrazide anti-aging compounds, and the dosages of the sulfonyl hydrazide anti-aging compounds and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/01C08K5/43
Inventor 黄汉平
Owner 黄汉平