Antistatic halogen-free environment-friendly flame-retardant sheet moulding compound and preparation method thereof

A sheet molding compound and flame retardant technology, applied in the field of sheet molding compound, can solve the problems of comprehensive mechanical properties and surface quality decline of sheet molding compound, improve comprehensive mechanical properties, improve flame retardant properties, and ensure compactness. stable effect

Inactive Publication Date: 2014-04-02
SHANGHAI YUEDA NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the research on the flame retardant technology of sheet molding compound mainly focuses on the method of adding a large amount of inorganic flame retardants (such as alkali metal hydroxides, alkali metal oxides, etc.), but adding a large amount of inorganic flame retardants will lead to The comprehensive mechanical properties and surface quality of plastics are greatly reduced

Method used

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  • Antistatic halogen-free environment-friendly flame-retardant sheet moulding compound and preparation method thereof
  • Antistatic halogen-free environment-friendly flame-retardant sheet moulding compound and preparation method thereof

Examples

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Effect test

Embodiment 1

[0030] In the sheet molding compound of the present invention, its components are selected in parts by mass, 70 parts of unsaturated polyester resin, 30 parts of polystyrene slurry, 1 part of initiator, 2 parts of thickener, 0.04 part of polymerization inhibitor, 4 parts of molding agent, 60 parts of filler, 3 parts of antistatic agent, 60 parts of aluminum hydroxide, 10 parts of intumescent flame retardant, 2 parts of smoke suppressant, 5 parts of anti-shedding agent, 50 parts of glass fiber, 10 parts of stainless steel fiber Firstly, graphene and coupling agent are added into the ball milling tank, and a certain amount of absolute ethanol is added as the ball milling medium, the ball milling tank is closed and ball milled at a speed of 500 rpm for 3 hours, and then dried in an oven; Add the processed graphene, smoke suppressant, anti-shedding agent, initiator, polymerization inhibitor and mold release agent into the batching kettle and stir for 8 minutes at 500 rpm; filler ca...

Embodiment 2

[0032] The sheet molding compound of the present invention, its component by mass parts, selects 80 parts of unsaturated polyester resins, 40 parts of polystyrene slurry, 1.5 parts of initiators, 3 parts of thickeners, 0.1 parts of polymerization inhibitors, 6 parts of molding agent, 80 parts of filler, 5 parts of antistatic agent, 50 parts of aluminum hydroxide, 15 parts of intumescent flame retardant, 4 parts of smoke suppressant, 5 parts of anti-shedding agent, 50 parts of glass fiber, 30 parts of stainless steel fiber Firstly, graphene and coupling agent are added into the ball milling jar, and a certain amount of absolute ethanol is added as the ball milling medium, the ball milling jar is closed and ball milled at a speed of 600 rpm for 3.5 hours, and then dried in an oven; Add the processed graphene, smoke suppressant, anti-shedding agent, initiator, polymerization inhibitor and mold release agent into the batching kettle and stir for 10 minutes at 700 rpm; filler calciu...

Embodiment 3

[0034] The sheet molding compound of the present invention, its component by mass parts, selects 80 parts of unsaturated polyester resins, 50 parts of polystyrene slurry, 2 parts of initiators, 3 parts of thickeners, 0.1 parts of polymerization inhibitors, 7 parts of molding agent, 80 parts of filler, 7 parts of antistatic agent, 60 parts of aluminum hydroxide, 20 parts of intumescent flame retardant, 4 parts of smoke suppressant, 6 parts of anti-shedding agent, 40 parts of glass fiber, 40 parts of stainless steel fiber Firstly, graphene and coupling agent are added into the ball milling jar, and a certain amount of absolute ethanol is added as the ball milling medium, the ball milling jar is closed and ball milled at a speed of 600 rpm for 4 hours, and then dried in an oven; Add the treated graphene, smoke suppressant, anti-shedding agent, initiator, polymerization inhibitor and mold release agent into the batching kettle and stir for 15 minutes at 1200 rpm; Add the flame ret...

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Abstract

The invention discloses an antistatic halogen-free environment-friendly flame-retardant sheet moulding compound and a preparation method thereof. The antistatic halogen-free environment-friendly flame-retardant sheet moulding compound comprises the following components in parts by weight: 70-100 parts of unsaturated polyester resin mixture, 30-60 parts of thermoplastic high-molecular polymer slurry, 1-4 parts of initiator, 2-6 parts of thickener, 0.03-0.8 part of polymerization inhibitor, 4-20 parts of release agent, 50-120 parts of filler, 3-10 parts of antistatic agent, 50-90 parts of aluminum hydroxide powder, 10-30 parts of inrumescent flame retardant, 2-7 parts of anti-smoke agent, 5-30 parts of anti-falling agent and 50-150 parts of reinforced fiber. according to the preparation, graphene is adopted as a novel antistatic agent; the graphene has ultrahigh electric conductivity; and after being treated by a coupling agent, the graphene can be uniformly dispersed in the matrix resin and form a good conducting channel.

Description

technical field [0001] The invention relates to a sheet molding compound, more precisely, an antistatic, halogen-free, environment-friendly and flame-retardant sheet molding compound and a preparation method thereof. Background technique [0002] Sheet Molding Compound (Sheet Molding Compound, SMC) is a mixture of unsaturated polyester resin, initiator, thickener, filler, crosslinking agent, release agent, colorant, etc. into a resin paste impregnated with glass fiber roving or glass Fiber felt, and molded material formed by covering both sides with polyethylene or polypropylene film. As a rapidly developing molding material, SMC has the advantages of high mechanization, high production efficiency, stable product quality, high raw material utilization, low production cost, and smooth product surface. However, SMC is generally used as an insulating material, and its surface resistance Rate at 10 12 ~10 14 , limiting its use in antistatic applications. Antistatic agent is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/08C08L51/06C08L97/00C08F283/01C08K13/06C08K9/04C08K9/06C08K3/04C08K3/22C08K7/14C08K7/04C08K3/32C08K5/3492C08K5/523B32B27/08
Inventor 成文俊徐德善杨玉晴
Owner SHANGHAI YUEDA NEW MATERIAL TECH
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