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Mold material

A mold material and epoxy resin technology, applied in the field of engineering technical materials, can solve the problems of poor flexural strength, poor toughness, affecting the service life of the mold, etc., and achieve the effect of prolonging the service life, high humidity and heat resistance, and improving toughness

Inactive Publication Date: 2012-01-18
DANCHEN TECH DALIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The epoxy resin cured with polyamide curing agent has good toughness, but low heat resistance, chemical corrosion resistance and mechanical strength, and poor flexural strength
The epoxy resin mold material cured with amine curing agent has high heat and humidity resistance, chemical corrosion resistance and mechanical strength, but poor toughness and is easy to break under repeated alternating stress, which affects the service life of the mold

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Raw materials are taken according to weight ratio: 100 parts of epoxy resin, 20 parts of plasticizer, 30 parts of emulsifier, 15 parts of talcum powder, 300 parts of methyl methacrylate, and 200 parts of water.

[0016] First, stir E51 epoxy resin and dioctyl sebacate evenly, then add diethylenetriamine and stir evenly, then add methyl methacrylate and water and stir to form a uniform emulsion, and finally add talc powder and stir evenly to form a slurry , inject the slurry into the model. At room temperature, after the epoxy resin is cured, the mold is demoulded and the soluble matter is washed away with water through the channels pre-set in the cured product, and its shape is the predetermined mold shape. The resin mold made of the mold material of the invention can be used more than 10,000 times on a high-pressure grouting machine, and the bending strength of the mold material is above 13MPa.

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PUM

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Abstract

The present invention discloses a mold material. The mold material is characterized in that: the mold material is prepared from the following raw materials, wherein the raw materials comprise, by weight, 100 parts of epoxy resin, 20-50 parts of a plasticizer, 20-50 parts of an emulsifier, 10-20 parts of pulvistalci, 250-500 parts of methyl methacrylate and 120-380 parts of water. With the mold material provided by the present invention, high damp heat resistance, high chemical erosion resistance and high mechanical strength of the mold material are ensured; the toughness of the mold is improved; the service life of the mold is prolonged, wherein the amine curing agent and the plasticizer are synchronously added so as to improve the toughness of the mold material.

Description

technical field [0001] The invention belongs to the field of engineering technical materials, in particular to a mold material with filtering function. Background technique [0002] At present, polyamide curing agent is used when epoxy resin is used as the base material to make the ceramic pressure grouting mold of through-hole material. The epoxy resin cured with polyamide curing agent has good toughness, but low heat resistance, chemical corrosion resistance and mechanical strength, and poor flexural strength. The epoxy resin mold material cured with amine curing agent has high heat and humidity resistance, chemical corrosion resistance and mechanical strength, but poor toughness, and it is easy to break under repeated alternating stress, which affects the service life of the mold. Contents of the invention [0003] The present invention provides a mold material whose purpose is to improve the corrosion resistance and mechanical strength of existing molds. [0004] In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/10C08G59/50C08K13/02C08K3/34
Inventor 范少丹
Owner DANCHEN TECH DALIAN