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Glycerol modified unsaturated polyester resin and preparation method thereof

A polyester resin, unsaturated technology, applied in the field of glycerin modified unsaturated polyester resin and its preparation, to achieve good toughness, good transparency, and good air-drying effect

Inactive Publication Date: 2019-05-03
JUSHI GRP CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to solve the problems described above

Method used

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  • Glycerol modified unsaturated polyester resin and preparation method thereof
  • Glycerol modified unsaturated polyester resin and preparation method thereof
  • Glycerol modified unsaturated polyester resin and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0046] The preparation method of this glycerol modified unsaturated polyester resin comprises the steps:

[0047] 1S: Crosslinker dilution:

[0048] Dissolve the cross-linking agent in 2-5 times the amount of water, stir and dilute, and set aside;

[0049] 2S: capping reaction:

[0050] Under the protection of inert gas, put glycerin, monobasic acid, and catalyst into the first reaction bottle in turn, start stirring; heat up to 165-175°C for heat preservation reaction for 1-2h; continue to heat up to 205-210°C, and wait for the reaction to reach the acid value Below 11, lower the temperature to 120-140°C to obtain the product and set it aside;

[0051] 3S: Reaction of maleic anhydride with dicyclopentadiene:

[0052] Under the protection of inert gas, put maleic anhydride and water into the second reaction bottle in turn, start stirring, raise the temperature to 120-130°C and keep it warm for 0.5-1h; then add dicyclopentadiene dropwise, and keep the temperature at 125°C du...

Embodiment

[0057] Table 1 shows specific examples of the contents of various raw materials in partially glycerin-modified unsaturated polyester resins, and the values ​​corresponding to each raw material are percent by mass / %.

[0058] Among them, the monobasic acid is selected from benzoic acid, and the manufacturer is Jiangsu Shunfeng Chemical Co., Ltd.

[0059] The catalyst is monobutyl tin oxide, and the manufacturer is Hangzhou Yuhao Chemical Technology Co., Ltd.;

[0060] The glycol is selected from diethylene glycol (diol 1) or a combination of diethylene glycol and propylene glycol (diol 2), wherein the manufacturer of diethylene glycol is Yanshan Petrochemical, and the manufacturer of propylene glycol is Yanshan Petrochemical;

[0061] Inhibitor selects hydroquinone for use;

[0062] The cross-linking agent was selected from styrene (cross-linking agent 1) or a combination of styrene and methyl methacrylate (cross-linking agent 2).

[0063] The dibasic acid is selected from ph...

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Abstract

The invention discloses a glycerol modified unsaturated polyester resin, which comprises the following raw materials in percentage by weight: glycerol 4-10%, monoacid 6-12%, catalyst 0.02-0.05%, diol3-9%, polymerization inhibitor 0.02-0.05%, crosslinking agent 25-40%, maleic anhydride 10-20%, dicyclopentadiene 8-18%, dibasic acid 4-10%. The glycerin modified unsaturated polyester resin is appliedto the preparation of daylighting tile, which can make the daylighting tile have better toughness, higher mechanical properties, refractive index, closer to glass fiber reinforced material, and goodsurface air-dryness of the products.

Description

technical field [0001] The invention relates to a polyester resin for daylighting tiles, in particular to a glycerin-modified unsaturated polyester resin used in the production of daylighting tiles made of glass fiber reinforced plastics and a preparation method thereof. Background technique [0002] Unsaturated polyester resin is generally a linear polymer with ester bonds and unsaturated double bonds formed by polycondensation of diols and dibasic acids, and then diluted with styrene monomer to form different types of unsaturated polyesters resin. Unsaturated polyester resin has good construction performance and is widely used. It has applications in transportation vehicles, construction, shipbuilding, chemical equipment, electronic appliances, sports equipment and daily necessities, and occupies an important position in the composite material industry. [0003] The lighting tile is a high-performance composite material prepared by continuous molding and pultrusion proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/01C08F212/08C08F220/14C08G63/676C08G63/78
Inventor 李翠红嵇安然
Owner JUSHI GRP CO
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