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Special flame-retardant composite material for circuit boards

A flame-retardant composite material and composite material technology, which is applied in the field of special flame-retardant composite materials for circuit boards, can solve problems such as flammability and poor water resistance, and achieve strong oxidation resistance, good heat dissipation effect, and excellent mechanical properties.

Inactive Publication Date: 2020-04-03
西安思后网络科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a special flame-retardant composite material for circuit boards, which solves the problem that circuit board materials are extremely flammable and have poor water resistance in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The technical solution adopted in the present invention is a special flame-retardant composite material for circuit boards, which is composed of the following components: 50% unsaturated resin flame retardant, 3% epoxy resin, 3% decabromobiphenyl acid, 3% Antimony trioxide, 6% tourmaline, 17% composite material, the percentage by weight of each of the above components is 100%.

[0020] The composite material is composed of the following components: 21% nano-calcium carbonate, 18% basalt fiber, 10% glass fiber, and 51% modified graphene oxide, and the weight percentage of each of the above components is 100%.

[0021] The epoxy value of the epoxy resin is 0.5.

[0022] Modified graphene oxide is prepared according to the following process:

[0023] Step 1, disperse the graphene oxide in the alcohol solvent, stir and disperse evenly, add the catalyst to obtain the dispersion;

[0024] Step 2. Replace the air in the reactor with carbon dioxide by gas replacement, stir th...

Embodiment 2

[0030] The technical solution adopted in the present invention is a special flame-retardant composite material for circuit boards, which is composed of the following components: 80% unsaturated resin flame retardant, 11% epoxy resin, 16% decabromobiphenyl acid, 2% Antimony trioxide, 4% tourmaline, 17% composite material, the weight percentage of the above components is 100%.

[0031] The composite material is composed of the following components: 42% nano-calcium carbonate, 5% basalt fiber, 23% glass fiber, and 30% modified graphene oxide, and the weight percentage of each of the above components is 100%.

[0032] The epoxy value of the epoxy resin is 0.74.

[0033] Modified graphene oxide is prepared according to the following process:

[0034] Step 1, disperse the graphene oxide in the alcohol solvent, stir and disperse evenly, add the catalyst to obtain the dispersion;

[0035] Step 2. Replace the air in the reactor with carbon dioxide by gas replacement, stir the reactio...

Embodiment 3

[0041] The technical solution adopted in the present invention is a special flame-retardant composite material for circuit boards, which is composed of the following components: 60% unsaturated resin flame retardant, 5% epoxy resin, 13% decabromobiphenyl acid, 2.5% Antimony trioxide, 4.5% tourmaline, 15% composite material, the weight percentage of the above components is 100%.

[0042] The composite material is composed of the following components: 35% nano-calcium carbonate, 10% basalt fiber, 15% glass fiber, and 40% modified graphene oxide, and the weight percentage of each of the above components is 100%.

[0043] The epoxy value of epoxy resin is 0.5-0.74.

[0044] Modified graphene oxide is prepared according to the following process:

[0045] Step 1, disperse the graphene oxide in the alcohol solvent, stir and disperse evenly, add the catalyst to obtain the dispersion;

[0046] Step 2. Replace the air in the reactor with carbon dioxide by gas replacement, stir the rea...

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PUM

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Abstract

The invention discloses a special flame-retardant composite material for circuit boards. 100wt% of the special flame-retardant composite material is composed of the following components, by weight, 50-80% of an unsaturated resin flame retardant, 3-11% of an epoxy resin, 3-16% of decabromodiphenyl acid, 2-3% of antimonous oxide, 4-6% of tourmaline and 5-17% of a composite material. According to theinvention, decabromodiphenyl acid is used as a main material, magnesium hydroxide, antimonous oxide and other materials are cooperatively added, and the content of each raw material is controlled tosynergistically promote the performances of each raw material, so the obtained ceramic material has the advantages of good heat dissipation effect, strong oxidation resistance and excellent mechanicalproperties.

Description

technical field [0001] The invention belongs to the technical field of circuit board materials, and relates to a special flame-retardant composite material for circuit boards. Background technique [0002] Polyurethane is a general term for macromolecular compounds containing repeated urethane groups on the main chain. Compared with traditional unsaturated resins and vinyl ester resin systems, polyurethane has excellent fatigue resistance and chemical corrosion resistance. Impact toughness, no styrene, low shrinkage and other characteristics, it is a new material with the fastest development and widest application, and it has been applied in circuit boards at present. [0003] At present, electronic products are developing in the direction of miniaturization, portability, and multi-functionality, which puts forward stricter requirements on the quality of materials used. However, the existing polyurethane materials are extremely flammable and have poor water resistance. Ther...

Claims

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Application Information

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IPC IPC(8): C08L101/02C08L63/00C08K13/06C08K3/26C08K7/10C08K7/14C08K3/04C08K3/22C08K3/38C08K5/095
CPCC08K2003/265C08K2201/011C08L101/02C08L2201/02C08L2201/08C08L2203/20C08L63/00C08K13/06C08K3/26C08K7/10C08K7/14C08K3/042C08K3/2279C08K3/38C08K5/095
Inventor 陈维普
Owner 西安思后网络科技有限公司