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Halogen-free flame retardant gel coat resin and preparation method thereof

A flame retardant gel coat and resin technology, which is applied in the field of halogen-free flame retardant gel coat resin and its preparation, can solve the problem of large amount of phosphorus-based flame retardant, and achieve excellent flame retardant performance, high solid content and moderate viscosity Effect

Inactive Publication Date: 2014-09-10
CHANGZHOU TIANMA GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this method, the addition amount of phosphorus-containing flame retardants is 5wt% to 14wt%, and the addition amount of the same phosphorus-based flame retardants is large

Method used

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  • Halogen-free flame retardant gel coat resin and preparation method thereof
  • Halogen-free flame retardant gel coat resin and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1）

[0046] The weight ratio of each component in the halogen-free flame-retardant gel coat resin of this embodiment is as follows: 100 parts of liquid o-phthalic unsaturated polyester resin containing a polymerization inhibitor, 100 parts of aluminum hydroxide, 2 parts of ammonium polyphosphate, 1 part of triphenyl phosphate, 5 parts of barium sulfate, 0.05 part of 1-hexyl-3-benzylbenzimidazole p-aminobenzoate, 4 parts of fumed silica, 2 parts of BYK-A500, 2 parts of BYK- 300, 1 part of BYK-163, 15 parts of color paste.

[0047] Wherein the manufacture method of the liquid ortho-phthalic unsaturated polyester resin containing polymerization inhibitor is: first prepare unsaturated polyester, make the propylene glycol of 50:5:25:25 molar ratio, diethylene glycol, ortho The polycondensation reaction of phthalic acid and maleic anhydride produces o-phthalic unsaturated polyester, and the reaction end point is controlled as follows: the viscosity is U-V, the acid value is 25-33, so tha...

Embodiment 2）

[0050] The weight ratio of each component in the halogen-free flame-retardant gel coat resin of the present embodiment is as follows:

[0051] 120 parts of liquid m-phenylene type unsaturated polyester resin containing polymerization inhibitor, 150 parts of aluminum hydroxide, 2 parts of ammonium polyphosphate, 1 part of dimethyl phosphate, 2 parts of barium sulfate, 1-octyl-3-benzyl 1 part of benzimidazole p-aminobenzoate, 2 parts of fumed silica, 5 parts of BYK-401, 5 parts of BYK-515, 3 parts of BYK-110, 10 parts of color paste. Wherein the preparation method of the liquid m-benzene type unsaturated polyester resin containing a polymerization inhibitor is to add styrene and a polymerization inhibitor to it after obtaining the m-phenylene type unsaturated polyester, and obtain the resin containing a polymerization inhibitor after mixing evenly Liquid isophthalic unsaturated polyester resin. The polymerization inhibitor is hydroquinone.

[0052] The flammability level of th...

Embodiment 3）

[0054] The weight ratio of each component in the halogen-free flame-retardant gel coat resin of this embodiment is as follows: 150 parts of liquid o-phthalate-neopentyl glycol type unsaturated polyester resin containing a polymerization inhibitor, 50 parts of magnesium hydroxide, poly 2 parts of ammonium phosphate, 1 part of triphenyl phosphate, 3 parts of silicon nitride, 0.1 part of 1-hexyl-3-benzylbenzotriazole p-aminobenzoate, 4 parts of fumed silica, 3 parts of BYK -300, 2 parts of BYK-500, 3 parts of BYK-163, 5 parts of color paste. The preparation method of the liquid o-phthalene-neopentyl glycol type unsaturated polyester resin is to add styrene and polymerization inhibitor to it after the o-phthalene-neopentyl glycol type unsaturated polyester is obtained, and obtain the matrix after mixing resin. The polymerization inhibitor is methyl hydroquinone.

[0055] The flammability level of the halogen-free flame-retardant gel coat resin of this embodiment reaches the flam...

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Abstract

The invention discloses a halogen-free flame retardant gel coat resin which comprises a matrix resin, a thixotropic agent, a liquid additive, color paste, and a flame retardant, wherein the flame retardant is composed of more than three of 1-alkyl-3-benzylbenzimidazole mesylate ionic liquid or 1-alkyl-3-benzyl benzotriazole ionic liquid, and aluminium hydroxide, magnesium hydroxide, ammonium polyphosphate, phosphate and derivatives thereof, silicon nitride, nano montmorillonite, barium sulfate, metal oxides and nano hydrotalcite. According to the halogen-free flame retardant gel coat resin disclosed by the invention, the ionic liquids are used in a flame retardant gel coat, and the addition amount of the ionic liquids is less, but the flame retardant properties of the coat are significantly enhanced. The prepared gel coat resin has the advantages of moderate viscosity, high thixotropy, high solid content, high strength, high flame retardant properties and the like, and is applicable to the surfaces of base resins or laminating materials with high flame retardant requirements for chemical engineering, yachts, textiles and rail transit and the like.

Description

technical field [0001] The invention relates to a gel coat resin, in particular to a halogen-free flame-retardant gel coat resin and a preparation method thereof. Background technique [0002] Gel coat resin is a special kind of resin in unsaturated polyester resin. It is designed to improve the appearance quality of glass fiber, enhance the appearance quality of unsaturated polyester resin-based FRP products, and protect the material of the structural layer from being eroded by external environmental media. Therefore, the main function of gel coat resin is to decorate the surface of FRP products and protect the structural layer. Colored gel coat can make FRP products have better aesthetics and protective performance. [0003] The gel coat resin is mainly obtained by mixing and dispersing unsaturated polyester resin as the matrix resin and fumed silica as the thixotropic agent; in order to improve the performance of the gel coat resin, some additives are usually added. Sin...

Claims

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Application Information

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IPC IPC(8): C08F283/01C08K13/02C08K5/3447C08K5/3475C08K3/22C08K3/32C08K5/523C08K3/30C08K3/36C08K3/34C08K5/521C08K3/26
Inventor 曹鑫宣维栋陈泠金湘玉杨春
Owner CHANGZHOU TIANMA GROUP CO LTD
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