Porous polymer material and preparation method thereof

A technology of porous polymers and prepolymers, applied in the field of porous polymer materials and their preparation, epoxy resin/bismaleimide/polyphenylene ether porous structure polymer materials and their preparation, can solve the problem of solvent or Problems such as complex process, gap size and difficulty in control

Active Publication Date: 2016-12-14
江苏金之田复合材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the preparation of porous polymer materials mainly involves methods such as solvent volatilization, porogen formation, gas foaming, polymer degradation and dissolution, etc. These preparation methods often involve solvents or complex processes or difficult to control the size of pores Therefore, how to prepare environmentally friendly, simple and effective porous polymer materials with uniform pores is of positive significance for the development of its applications.
There is no report about epoxy resin / bismaleimide / polyphenylene ether porous structure polymer material

Method used

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  • Porous polymer material and preparation method thereof
  • Porous polymer material and preparation method thereof
  • Porous polymer material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Mix 27g of epoxy resin (E-51), 27g of N,N'- (4,4'-methylenediphenyl) bismaleimide (BMI) and 20.25g of polyphenylene ether (PPO*MX9000- 111) Mix, stir and heat at 150°C for about 70min, the obtained epoxy resin / bismaleimide / polyphenylene ether prepolymer is then vacuumed at 150°C until no bubbles are generated, and then according to 180°C / 2h+200°C / 2h+220°C / 2h for curing treatment, epoxy resin / bismaleimide / polyphenylene ether resin porous polymer material can be obtained.

[0026] figure 1 It is the differential scanning calorimetry (DSC) method curve of epoxy E-51, BMI, PPO* MX9000-111 and different component mixtures. from figure 1 It can be seen that BMI can undergo self-polymerization, and its reaction exothermic peak temperature is 236°C. Epoxy resin E-51 partially decomposes at 350°C, and self-polymerization can occur at 388°C. The melting temperature of PPO* MX9000-111 The reaction temperature of the mixture of BMI and PPO*MX9000-111 is 213℃, the reaction tempe...

Embodiment 2

[0029] Mix 27g of epoxy resin (E-51), 27g of N,N'- (4,4'-methylenediphenyl) bismaleimide (BMI) and 13.5g of polyphenylene ether (PPO*MX9000- 111) Mix, stir and heat at 150°C for about 70min, the obtained epoxy resin / bismaleimide / polyphenylene ether prepolymer is then vacuumed at 150°C until no bubbles are generated, and then according to 180°C / 2h+200°C / 2h+220°C / 2h for curing treatment, epoxy resin / bismaleimide / polyphenylene ether resin porous polymer material can be obtained. image 3It is the SEM picture of the cross-section of the porous polymer material in Example 2. It can be seen from the figure that there are obvious pores in the material. The relevant material performance data are shown in Table 1.

Embodiment 3

[0031] Mix 32g of epoxy resin (E-51), 32g of N,N'-(4,4'-methylenediphenyl) bismaleimide and 8g of polyphenylene ether (Noryl* SA9000), at 155℃ Stir and heat for about 70 minutes to obtain the epoxy resin / bismaleimide / polyphenylene ether prepolymer, then vacuumize at 155°C until no bubbles are generated, and then follow the steps of 180°C / 2h+200°C / 2h+ Curing treatment at 220°C / 2h can obtain epoxy resin / maleimide / polyphenylene ether resin porous polymer material. Figure 4 It is the SEM picture of the cross-section of the porous polymer material in Example 3. It can be seen from the figure that there are obvious pores in the material. The relevant material performance data are shown in Table 1.

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Abstract

The invention relates to a porous polymer material and a preparation method thereof. Epoxy resin, bismaleimide resin and polyphenyl ether serve as raw materials; according to the fact that different resin raw materials have different reaction abilities, the unreacted resin is diffused to remain pores in the aggregation process of the reacted resin microgel and the resin is cured and shrunk to form pores, so that the porous polymer material is prepared. The porous polymer material prepared by the method has excellent mechanical properties, heat stability and dielectric properties. A scanning electron microscope (SEM) figure proves that the porous material provided by the invention has high mechanical properties under the conditions of high porosity and large pore diameter; and the prepared material has potential application in the fields of insulation and heat insulation, controlled release, membrane adsorption and separation and low-dielectric-property materials.

Description

technical field [0001] The invention relates to a porous polymer material and a preparation method thereof, in particular to an epoxy resin / bismaleimide / polyphenylene ether porous structure polymer material and a preparation method thereof, belonging to the field of polymer composite materials. Background technique [0002] Due to the internal pore structure, low density and light weight of porous polymer materials, it is widely used in insulation, controlled release, membrane adsorption separation and low dielectric performance materials. At present, the preparation of porous polymer materials mainly involves methods such as solvent volatilization, porogen formation, gas foaming, polymer degradation and dissolution, etc. These preparation methods often involve solvents or complex processes or difficult to control the size of pores Therefore, how to prepare environmentally friendly, simple and effective porous polymer materials with uniform pores is of positive significance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L63/02C08L79/08C08L71/12C08J9/00
CPCC08J9/00C08J2363/00C08J2379/08C08J2463/00C08J2471/12C08J2479/08C08L63/00C08L79/085C08L2205/03C08L71/12
Inventor 袁莉顾嫒娟梁国正张权
Owner 江苏金之田复合材料科技有限公司
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