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Colorant matrix resin for unsaturated polyester resin and preparation method thereof

A technology of matrix resin and polyester resin, applied in the field of color paste matrix resin for unsaturated polyester resin and its preparation, can solve the problems of chalking, low tinting strength, uneven coloring, etc. The effect of improving coloring ability and improving compatibility

Inactive Publication Date: 2015-11-25
YONGYUE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are certain disadvantages in this way: such as poor color reproducibility, uneven coloring, due to lack of professional technology and process, the pigment particles are relatively thick, the tinting power is not high, and the pollution is serious. Poor light resistance and weather resistance, easy to fade, chalking, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The matrix resin of present embodiment one is formed by copolymerization of following raw materials: neopentyl glycol 1600Kg, propylene glycol 300Kg, phthalic anhydride 800Kg, maleic anhydride 300Kg, hydroquinone 150g, 200 molecular weight polyethylene glycol 130Kg, Triphenyl phosphite 3Kg (in the present embodiment, the mol ratio of glycol and acid is 2.26:1; the mol ratio of unsaturated acid and saturated acid is 0.57:1, and the polyethylene glycol addition is 4.1%), The specific preparation method is as follows:

[0026] 1) Weigh each synthetic raw material component according to the weight ratio, check and confirm whether the equipment, electrical appliances, instruments, valves and raw materials are normal;

[0027] 2) Throw 1600Kg of neopentyl glycol, 300Kg of propylene glycol, 800Kg of phthalic anhydride, 300Kg of maleic anhydride, and 130Kg of polyethylene glycol into the reactor in the order of first feeding the liquid material and then the solid material. Dio...

Embodiment 2

[0033] The matrix resin of present embodiment two is formed by the copolymerization of following raw materials: methylpropanediol 1100Kg, adipic acid 800Kg, maleic anhydride 500Kg, polyethylene glycol 250Kg of 600 molecular weight, hydroquinone 150g, triphenyl phosphite 2.5Kg (in this embodiment, the molar ratio of glycol to acid is 1.57:1; the molar ratio of unsaturated acid to saturated acid is 0.93:1, and the amount of polyethylene glycol added is 10.3%). The specific preparation method is as follows :

[0034] 1) Weigh each synthetic raw material component according to the weight ratio, check and confirm whether the equipment, electrical appliances, instruments, valves and raw materials are normal;

[0035] 2) Throw into the reaction kettle the methyl propylene glycol of 1100Kg, the maleic anhydride of 500Kg, the adipic acid of 800Kg, the polyethylene glycol of 250Kg, the ethylene glycol of 2.5Kg in the order of throwing liquid material first, and throwing solid material l...

Embodiment 3

[0041]The matrix resin of the present embodiment three is formed by copolymerization of the following raw materials: ethylene glycol 400Kg, propylene glycol 500Kg, phthalic anhydride 900Kg, maleic anhydride 400Kg, 800 molecular weight polyethylene glycol 575Kg, triphenyl phosphite 2.5Kg , Hydroquinone 150g (in the present embodiment, the mol ratio of glycol and acid is 1.28:1; the mol ratio of unsaturated acid and saturated acid is 0.67:1, and the polyethylene glycol addition is 20.7%), The specific preparation method is as follows:

[0042] 1) Weigh each synthetic raw material component according to the weight ratio, check and confirm whether the equipment, electrical appliances, instruments, valves and raw materials are normal;

[0043] 2) Put 400Kg of ethylene glycol, 500Kg of propylene glycol, 900Kg of phthalic anhydride, 400Kg of maleic anhydride, and 575Kg of polyethylene glycol into the reactor in the order of first feeding the liquid material and then the solid materia...

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Abstract

The invention particularly discloses colorant matrix resin for unsaturated polyester resin and a preparation method thereof. The colorant matrix resin is formed by conducting copolymerization on acid, dihydric alcohol and auxiliaries, wherein the acid comprises unsaturated acid and saturated acid, the molar ratio of the unsaturated acid to the saturated acid is 0.1-1 to 1, the dihydric alcohol comprises polyethylene glycol, the polyethylene glycol accounts for 1%-50% of the total mass of addition of synthesis materials, the molecular weight of the polyethylene glycol ranges from 200 to 2,000, and the molar ratio of the dihydric alcohol to the acid is 1-5 to 1. According to the colorant matrix resin for the unsaturated polyester resin and the preparation method thereof, due to the fact that polyethylene glycol with different molecular weights and different mass fractions is selected, the viscosity modulation factor of the colorant matrix resin is greatly increased, the compatibility of an organic molecular chain and an inorganic substance is improved, the compatibility of the colorant matrix resin and inorganic color powder and the wettability of the colorant matrix resin and inorganic filler are promoted, the compatibility of the colorant matrix resin and unsaturated polyester is improved, and the tinting strength of the colorant matrix resin and a product and the capacity of resisting discoloration in the later using process of a finished product of unsaturated polyester resin are greatly improved.

Description

technical field [0001] The invention relates to the technical field of unsaturated polyester resins, in particular to a color paste matrix resin for unsaturated polyester resins and a preparation method thereof. Background technique [0002] Unsaturated polyester resin is the most commonly used type of thermosetting resin. It is formed by polycondensation of unsaturated dibasic acid diol or saturated dibasic acid unsaturated diol. It is formed by diluting cross-linking monomer or active solvent. A resin solution with a certain viscosity is a linear polymer compound with ester bonds and unsaturated double bonds, referred to as UPR. [0003] As the use of unsaturated polyester resin products becomes wider and wider, people have stricter and stricter requirements on the color of their products. Traditional coloring is to use pigment powder directly added to unsaturated polyester resin, and then solidified to make products for coloring. There are certain disadvantages in this ...

Claims

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Application Information

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IPC IPC(8): C08G63/676C08G63/78
Inventor 陈晓彬钟丁通马广超黄腾安柯荣太
Owner YONGYUE SCI & TECH
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