Novel gel coat resin for die and preparation method for novel gel coat resin

A technology of gel coat resin and new mold, applied in the direction of fibrous filler, coating, dyeing organosilicon compound treatment, etc., to achieve the effect of improving mechanical properties and flexibility

Active Publication Date: 2015-08-19
WUJIANG ZHENYU SEWING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, gel coat resins for molds are mainly used to make molds, so they must have good mechanical properties and flexibility. Ordinary gel coat resins cannot fully meet the above requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of gel coat resin for novel mold, it comprises the component of following parts by weight: unsaturated polyester resin 80g, fumed silicon dioxide 2g, dispersant 0.5g, defoamer 0.5g, polymerization inhibitor 0.3g, initiator 0.3g, nano silicon carbide 14.4g, coupling agent 2g.

[0022] Its preparation method comprises the following steps:

[0023] (1) Dissolve nano-silicon carbide and coupling agent in toluene, fully disperse with dispersant, heat in an oil bath, protect with nitrogen gas, remove the material after stirring for 4 hours, leave it to stand for layering, wash the lower sediment with acetone, and Vacuum drying at 80°C for 12 hours to obtain modified nano silicon carbide;

[0024] (2) Mix modified nano-silicon carbide with unsaturated polyester resin, add fumed silica, dispersant, defoamer, polymerization inhibitor, initiator, stir until there are no agglomerate particles, and obtain a uniformly mixed mixture It is gel coat resin for mold.

Embodiment 2

[0026] A kind of gel coat resin for novel mold, it comprises the component of following parts by weight: unsaturated polyester resin 93g, fumed silicon dioxide 0.1g, dispersant 0.1g, defoamer 0.1g, polymerization inhibitor 0.1g, trigger Agent 0.1g, nano silicon carbide 5.9g, coupling agent 0.5g.

[0027] Its preparation method comprises the following steps:

[0028] (1) Dissolve nano-silicon carbide and coupling agent in toluene, fully disperse with dispersant, heat in an oil bath, protect with nitrogen gas, remove the material after stirring for 4 hours, leave it to stand for layering, wash the lower sediment with acetone, and Vacuum drying at 80°C for 12 hours to obtain modified nano silicon carbide;

[0029] (2) Mix modified nano-silicon carbide with unsaturated polyester resin, add fumed silica, dispersant, defoamer, polymerization inhibitor, initiator, stir until there are no agglomerate particles, and obtain a uniformly mixed mixture It is gel coat resin for mold.

Embodiment 3

[0031] A kind of gel coat resin for novel mold, it comprises the component of following parts by weight: unsaturated polyester resin 92.2g, fumed silicon dioxide 1g, dispersant 0.2g, defoamer 0.2g, polymerization inhibitor 0.2g, trigger Agent 0.2g, nano silicon carbide 5g, coupling agent 1g.

[0032] Its preparation method comprises the following steps:

[0033] (1) Dissolve nano-silicon carbide and coupling agent in toluene, fully disperse with dispersant, heat in an oil bath, protect with nitrogen gas, remove the material after stirring for 4 hours, leave it to stand for layering, wash the lower sediment with acetone, and Vacuum drying at 80°C for 12 hours to obtain modified nano silicon carbide;

[0034] (2) Mix modified nano-silicon carbide with unsaturated polyester resin, add fumed silica, dispersant, defoamer, polymerization inhibitor, initiator, stir until there are no agglomerate particles, and obtain a uniformly mixed mixture It is gel coat resin for mold.

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PUM

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Abstract

The invention provides novel gel coat resin for a die. The novel gel coat resin comprises the following components in parts by weight: 80 to 93 parts of unsaturated polyester resin, 0.2 to 2 parts of fumed silica, 0.1 to 0.5 part of a dispersant, 0.1 to 0.5 part of an antifoaming agent, 0.1 to 0.3 part of a polymerization inhibitor, 0.1 to 0.3 part of an initiator, 5 to 15 parts of nanometer silicon carbide and 0.5 to 2 parts of a coupling agent. The invention further discloses a preparation method for the gel coat resin for the die. The gel coat resin for the die has higher mechanical performance and flexibility.

Description

Technical field: [0001] The invention relates to a gel coat resin, in particular to a novel gel coat resin for molds and a preparation method thereof. Background technique: [0002] Gel coat resin is a special resin in unsaturated polyester resin, which is used to coat the surface of the substrate material to provide a protective layer, improve the performance of the product, give the product a bright appearance, and prolong the service life. Gel coat resin is mainly formed by mixing and dispersing unsaturated polyester resin as the matrix and fumed silica as the thixotropic agent. Gel coat resin has a wide range of applications, including gel coat resin for molds, marine gel coat resin, food grade gel coat resin, etc. Among them, gel coat resins for molds are mainly used to make molds, so they must have good mechanical properties and flexibility. Ordinary gel coat resins cannot fully meet the above requirements. Invention content: [0003] The technical problem to be so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/06C09D7/12C09C1/28C09C3/12
Inventor 王志强
Owner WUJIANG ZHENYU SEWING EQUIP
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