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Epoxy resin and nano inorganic particle compounded foam material and preparation method thereof

A technology of nano-inorganic particles and epoxy resin, applied in the field of nano-inorganic composite foaming materials and its preparation, and epoxy resin, can solve the problems of difficult control of microporous structure, generation of toxic gas, uneven stirring, etc., to achieve The effect of small average diameter, increased melt viscosity, and low production cost

Active Publication Date: 2012-02-15
贵州凯科特材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above three reaction methods all have problems such as complicated operation, uneven stirring, high cost, generation of toxic gas, and difficulty in controlling the morphology of micropore structure.

Method used

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  • Epoxy resin and nano inorganic particle compounded foam material and preparation method thereof
  • Epoxy resin and nano inorganic particle compounded foam material and preparation method thereof
  • Epoxy resin and nano inorganic particle compounded foam material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1. The influence of the content of composite nano-inorganic particles on the foaming quality of the epoxy resin-based foaming material was tested.

[0027] 1. Raw materials

[0028] Epoxy resin, grade E51, Shanghai Resin Factory; curing agent, grade 504, Shanghai Resin Factory; curing aid, grade DMP-30, Guangzhou Zhiyi Chemical Co., Ltd.; expandable expandable microspheres, commercially available; Soil removal, commercially available; nano-silica, commercially available.

[0029] 2. Sample preparation

[0030] Take 100g of epoxy resin, 80g of curing agent, 0.1g of curing aid, 4g of expandable expandable microspheres, composite nano-inorganic particles (a mixture of nano-organic montmorillonite and nano-silica, mass ratio 1:2), press Composite nano-inorganic particles and epoxy resin mass percentage content are 1%, 5%, 10%, 15%, 20% respectively. In the mold cavity, epoxy resin and nano-inorganic particle composite foaming materials are prepared by moldin...

Embodiment 2

[0035] Embodiment 2. The effect of the proportion of composite nano-inorganic particles on the foaming quality of the epoxy resin-based foaming material was tested.

[0036] 1. Raw materials

[0037] Epoxy resin, grade E51, Shanghai Resin Factory; curing agent, grade 504, Shanghai Resin Factory; curing aid, grade DMP-30, Guangzhou Zhiyi Chemical Co., Ltd.; expandable expandable microspheres, commercially available; Soil removal, commercially available; nano-silica, commercially available.

[0038] 2. Sample preparation

[0039] Get 100g of epoxy resin, 80g of curing agent, 0.1g of curing aid, 4g of expandable expandable microspheres, and mix nano-organic montmorillonite and nano-dioxide After the silicon is stirred evenly according to the mass ratio of 3:1, 2:1, 1:1, 1:2, 1:3, the stirring rate is 200 rpm, and then the evenly mixed melt is poured into the mold cavity and passed through the molding process. The molding method is to prepare epoxy resin / composite nano-inorga...

Embodiment 3

[0044] Embodiment three, test the influence of different foaming agent types on composite nano-inorganic material / epoxy resin material

[0045] 1. Raw materials

[0046]Epoxy resin, grade E51, Shanghai Resin Factory; curing agent, grade 504, Shanghai Resin Factory; curing aid, grade DMP-30, Guangzhou Zhiyi Chemical Co., Ltd.; expandable expandable microspheres, commercially available; modified AC Foaming agent, Guizhou Kaikete Material Co., Ltd.; nano-organic montmorillonite, commercially available; nano-silica, commercially available.

[0047] 2. Sample preparation

[0048] Take 100g of epoxy resin, 80g of curing agent, 0.1g of curing aid, compound nano-inorganic particles (a mixture of nano-organic montmorillonite and nano-silicon dioxide, mass ratio 1:2), press the composite nano-inorganic particles and epoxy resin The mass percentage content is 10%. After mixing and stirring with different expandable expandable microspheres and modified AC foaming agent in a ratio of 4...

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Abstract

The invention discloses an epoxy resin and nano inorganic particle compounded foam material and a preparation method thereof. The material comprises epoxy resin, a curing agent, a curing assistant, composite nano inorganic particles and a foaming agent. The preparation method comprises the following steps: mixing the epoxy resin, the curing agent, the composite nano inorganic particles, the curing assistant and the foaming agent, pouring the mixture into a die, curing for 1.5-5.5 hours in an oven at the temperature of 140-160 DEG C, and cooling along with the oven. In the technical scheme of the invention, composite nano inorganic particles are added in epoxy resin, composite inorganic particles can increase the viscosity of the polymer melt in preparing foam material, and the melt viscosity of the foaming system is improved to perform better synchronization of the epoxy resin curing and the cell nucleation and growth, thereby obtaining good foaming effect within wide process scope. Moreover, the prepared foam material has the advantages of small cell average diameter, uniform cell size distribution and high cell density.

Description

technical field [0001] The invention relates to an epoxy resin, nano inorganic material composite foaming material and a preparation method thereof. Background technique [0002] Due to its low apparent density, light weight and tough structure, epoxy foam materials have better mechanical properties, electrical properties, water resistance, chemical corrosion resistance and higher thermal stability than traditional foam plastics. With a series of features, it can be widely used in the fields of transportation, military industry, aerospace, electronics and daily necessities. However, in the preparation process of epoxy resin-based foaming materials, foaming and curing processes are required to be carried out simultaneously, which greatly increases the difficulty of preparing epoxy resin-based foaming materials with fine cells and uniform cells. The methods currently available for the preparation of epoxy resin-based foam materials include: physical methods, mechanical method...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08K13/06C08K9/04C08K3/34C08K3/36C08J9/06C08J9/228
Inventor 张纯于杰秦舒浩何力罗筑陈兴江罗恒刘渝朱建华
Owner 贵州凯科特材料有限公司
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