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Manufacturing method for nanometer organic montmorillonite modified epoxy resin casting body

A technology of organic montmorillonite and epoxy resin, which is applied in the field of epoxy resin casting, and can solve the problems of limited application and high brittleness of cured products.

Inactive Publication Date: 2012-12-26
费金华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high brittleness of its cured product, its application in some high-tech fields is largely limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] main raw material

[0015] EP, E-51, curing agent MTH-PA, nano-organic montmorillonite, DK-l, accelerator, 2-ethyl-4-methylimidazole.

[0016] For the production of casting body, weigh 0-10 parts of organic montmorillonite D K-l and 100 parts of EP and mix them at 75-85. C-F infiltration for 1 to 2 hours, so that EP and organic montmorillonite can be fully mixed; vacuum defoaming to prepare EP infiltration masterbatch.

[0017] Weigh the infiltration masterbatch, EP, curing agent MTHPA, accelerator EMI according to the pre-designed formula, at 85. ci:El heated in a warm water bath, stirred and mixed for 25 minutes, stirred evenly, vacuumed for 5 minutes, and then poured the mixture until it had been preheated to 120. C's mold, at 120. C-F pre-cured for 1 h, and at 140. After curing C-F for 12 h, the modified EP cured product was obtained.

[0018] The test of unnotched impact strength is carried out according to GB / T1043-93 standard. The hardness test ...

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PUM

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Abstract

The invention relates to a manufacturing method for a nanometer organic montmorillonite modified epoxy resin casting body. The manufacturing method is characterized by comprising: weighing 0-10 parts of organic montmorillonite DK-1 and 100 parts of EP, and mixing; carrying out infiltration for 1-2 hours at a temperature of 75-85 DEG C-F, such that the EP and the organic montmorillonite can be completely mixed; carrying out vacuum defoaming to prepare an EP infiltration master batch; weighing the infiltration master batch, the EP, a curing agent MTHPA, and an accelerator EMI according to a pre-designed formula; carrying out stirring mixing for 25 minutes under heating in a warm water bath with a temperature of 85 DEG C, uniformly stirring, and pumping vacuum for 5 minutes; then casting the resulting mixture into a mold preheated to a temperature of 120 DEG C; and carrying out pre-curing for 1 hour at a temperature of 120 DEG C-F, and carrying out post-curing for 12 hours at a temperature of 140 DEG C-F to obtain the modified EP cured material, wherein a un-notched impact strength test is performed according to a GB / T1043-93 standard.

Description

technical field [0001] The invention relates to a method for manufacturing an epoxy resin cast body, in particular to a method for manufacturing a nano-organic montmorillonite-modified epoxy resin cast body. Background technique [0002] At present, epoxy resin (EP) is an important thermosetting resin, which is widely used in adhesives, electronic instruments and other fields. Due to the high brittleness of its cured product, its application in some high-tech fields is limited to a large extent. In recent years, the use of nanoparticles to toughen epoxy resins has been extensively studied. It was found that cross-linked organic polymer nanoparticles such as carboxylated nitrile elastic nanoparticles and styrene-butadiene pyridine elastic nanoparticles, as well as nano-Si0 2 , Ti0 2 , montmorillonite and other inorganic nanoparticles have obvious toughening effect on EP. The effect of the amount of nano-organic montmorillonite on the structure and properties of EP was stud...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K13/06C08K9/04C08K3/34C08G59/40C08J3/22B29C39/44
Inventor 费金华
Owner 费金华