EPS foam-epoxy resin composite die and preparation method thereof

A technology of epoxy resin and composite mold, applied in the direction of epoxy resin glue, manufacturing tools, adhesive types, etc., can solve the problems of easy deformation of the mold, difficulty in mold release, etc., to solve the problems of easy deformation, excellent porosity, excellent The effect of specific surface area

Active Publication Date: 2020-12-25
广西长城机械股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an EPS foam-epoxy resin composite mold, which uses epoxy resin and EPS foam to compound, which can make up for the difficulty in mold removal and easy deformation of the mold when the foam mold is used alone, and can Balance the mold lifting and strengthen the stress points to improve the overall strength of the mold

Method used

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  • EPS foam-epoxy resin composite die and preparation method thereof
  • EPS foam-epoxy resin composite die and preparation method thereof
  • EPS foam-epoxy resin composite die and preparation method thereof

Examples

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Effect test

Embodiment 1

[0040] A kind of EPS foam-epoxy resin compound mould, is that the epoxy resin reinforcing plate that thickness is 1mm is pasted on the molding surface of EPS foam mould, and composite forms, and described epoxy resin reinforcing plate comprises following raw material: Bisphenol F epoxy resin 3kg, bisphenol A epoxy resin 10kg, E-51 epoxy resin 5kg, isophthalic unsaturated polyester resin 10kg, rush fiber powder 1kg, chitosan 1kg, oxalic acid 1kg, 0.5kg of wheat straw powder, 0.01kg of triphenylphosphine, 10kg of dimethyl sulfoxide, 5kg of stone powder, and 5kg of curing agent; the stone powder includes the following raw materials: 3kg of quartz powder, 1kg of aluminum hydroxide powder , marble powder 0.5kg; described curing agent comprises the following raw materials of weight: trimellitic anhydride 1kg, methyltetrahydrophthalic anhydride 1kg, N-(3,4-dichlorophenyl)-N', N'-dimethylurea 2kg.

[0041] The preparation method of described epoxy resin reinforced board comprises the...

Embodiment 2

[0055] A kind of EPS foam-epoxy resin compound mould, is that the epoxy resin reinforcement plate that thickness is 3mm is pasted on the mold surface of EPS foam mould, and composite forms, and described epoxy resin reinforcement plate comprises following raw material: Bisphenol F epoxy resin 5kg, bisphenol A epoxy resin 15kg, E-51 epoxy resin 8kg, isophthalic unsaturated polyester resin 12kg, rush fiber powder 3kg, chitosan 2kg, oxalic acid 2kg, wheat straw powder 1kg, triphenylphosphine 0.03kg, dimethyl sulfoxide 15kg, stone powder 7kg, curing agent 8kg; the stone powder includes the following raw materials by weight: quartz powder 3.5kg, aluminum hydroxide powder 1.5 kg, marble powder 1kg; the curing agent includes the following raw materials: trimellitic anhydride 2kg, methyltetrahydrophthalic anhydride 2kg, N-(3,4-dichlorophenyl)-N',N'-dimethylurea 3.5kg.

[0056] The preparation method of described epoxy resin reinforced board comprises the following steps:

[0057] a....

Embodiment 3

[0070] A kind of EPS foam-epoxy resin compound mould, is that the epoxy resin reinforcing plate that is 5mm in thickness is pasted on the profile surface of EPS foam mould, and composite forms, and described epoxy resin reinforcing plate is by comprising following raw material: Bisphenol F epoxy resin 8kg, bisphenol A epoxy resin 20kg, E-51 epoxy resin 10kg, isophthalic unsaturated polyester resin 15kg, rush fiber powder 5kg, chitosan 3kg, oxalic acid 3kg, 1.4kg of wheat straw powder, 0.05kg of triphenylphosphine, 20kg of dimethyl sulfoxide, 10kg of stone powder, and 10kg of curing agent; the stone powder includes the following raw materials: 4kg of quartz powder, 2kg of aluminum hydroxide powder , marble powder 1.5kg; described solidifying agent comprises the raw material of following weight: trimellitic anhydride 3kg, methyltetrahydrophthalic anhydride 3kg, N-(3,4-dichlorophenyl)-N', N'-dimethylurea 5kg.

[0071] The preparation method of described epoxy resin reinforced bo...

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Abstract

The invention discloses an EPS (Expandable Polystyrene) foam-epoxy resin composite die, which is formed by adhering an epoxy resin reinforcing plate with the thickness of 1-5mm to the profile of a drawing part of an EPS foam die and compounding. The epoxy resin reinforcing plate is prepared from the following raw materials in parts by weight: 3-8 parts of bisphenol F epoxy resin, 10-20 parts of bisphenol A epoxy resin, 5-10 parts of E-51 epoxy resin, 10-15 parts of m-benzene unsaturated polyester resin, 1-5 parts of juncus effusus fiber powder, 1-3 parts of chitosan, 1-3 parts of oxalic acid,0.5-1.4 parts of wheat straw powder, 0.01-0.05 parts of a catalyst, 10-20 parts of an organic solvent, 5-10 parts of stone powder and 5-10 parts of a curing agent. The composite die is formed by compounding the EPS foam plate and the epoxy resin reinforcing plate, drawing can be balanced, stress points can be reinforced, the overall strength of the die is improved, and the problems that the EPS die is prone to deformation and difficult to draw during drawing are solved.

Description

technical field [0001] The invention belongs to the technical field of composite mold preparation, and in particular relates to an EPS foam-epoxy resin composite mold and a preparation method thereof. Background technique [0002] Sand casting is a casting method that produces castings in sand molds. Steel, iron and most non-ferrous alloy castings can be obtained by sand casting. Because the molding materials used in sand casting are cheap and easy to obtain, the casting mold is easy to manufacture, and it can adapt to the single-piece production, batch production and mass production of castings. It has been the basic process in casting production for a long time. [0003] At present, the mold materials used for casting and producing wear-resistant castings such as high manganese steel mainly include cast iron and wood. Metal molds and wooden molds have a long service life, the surface of casting products is smooth, and the post-processing is convenient; the mold and cavit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/12B22C9/00C08L63/02C08L67/06C08L1/02C08L5/08C08L97/02C08K13/02C08K3/36C08K3/22C08K3/26C08K5/092C09J163/02C09J11/04C09J11/06C09J11/08
CPCC08J5/124B22C9/00C08L63/00C09J163/00C09J11/04C09J11/06C09J11/08C08K2003/265C08L2205/035C08L2205/025C08L2205/16C08J2363/02C08J2463/02C08K2003/2227C08K2003/166C08L67/06C08L1/02C08L5/08C08L97/02C08K13/02C08K3/36C08K3/22C08K3/26C08K5/092C08L29/04C08K13/04C08K7/26C08K5/42C08K3/16
Inventor 周正赵四勇廖钊康健田辉
Owner 广西长城机械股份有限公司
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