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Epoxy/silicone polymer composite material, and preparation method and application thereof

A composite material and organosilicon technology, applied in the field of materials, can solve the problems of difficult large-scale use, high price, and limited application, and achieve the effects of improved adhesion, low cost, and simple preparation process

Inactive Publication Date: 2013-03-20
GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the price of the two is high, especially the price of polymethylphenylsiloxane with high phenyl content is several hundred to thousands of yuan per kilogram, the application is extremely limited, and it is difficult to use on a large scale

Method used

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  • Epoxy/silicone polymer composite material, and preparation method and application thereof
  • Epoxy/silicone polymer composite material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Preparation of aralkylmethyl hydrogen-containing polysiloxane and aralkylmethylpolysiloxane

[0041] Mix 100g of industrial high hydrogen-containing silicone oil (1.55wt% active hydrogen content) and 104g of styrene at room temperature, and add Kasted catalyst (platinum divinyldisiloxane double head complex solution, 1800ppm) 0.3g, heated up to 50°C for 12 hours, and distilled under reduced pressure at 80°C for 2 hours to obtain phenethylmethylhydrogenpolysiloxane A; the obtained phenethylmethylhydrogenpolysiloxane A The content of active hydrogen is 0.21wt%, and the content of phenethyl is 50wt%;

[0042] After mixing 100g of industrial hydrogen-containing silicone oil (active hydrogen content of 0.75wt%) and 50g of styrene at room temperature, add Kasted catalyst (platinum divinyldisiloxane double head complex solution, 1800ppm) 0.3g, heated up to 50°C for 12 hours, and distilled under reduced pressure at 80°C for 2 hours to obtain phenethylmethylhydrogenpolysilo...

Embodiment 2

[0050] 0.5 g of phenylethylmethyl hydrogen-containing polysiloxane B (30wt% phenylethyl, 0.10wt% active hydrogen) prepared in Example 1, methyl MQ silicone resin (M / Q=0.55, Shandong Dayi Chemical Industry Co., Ltd. Co., Ltd.) 1.0g, E-51 bisphenol A type epoxy resin 9g, dicyclopentadiene dioxide 1g, stannous octoate 0.05g, methyltetrahydrophthalic anhydride 10g and mix uniformly to obtain a mixture; mix the mixture After standing for 10 minutes, it will defoam, and it will remain stable for 1 day at room temperature without delamination;

[0051] The above mixture is coated on the corresponding substrate, and then placed in an oven and heated to 80°C, kept for 1 hour and then kept at 150°C for 2 hours to obtain an epoxy / organic silicon polymer composite material; the epoxy / organic The results of performance tests (volatile matter, pencil hardness of the film, water contact angle, adhesion, corrosion resistance and glass transition temperature Tg) of the silicon polymer composit...

Embodiment 3

[0055] 10 g of phenylethylmethyl hydrogen-containing polysiloxane A (50wt% phenethyl, 0.21wt% active hydrogen) prepared in Example 1, vinylmethyl MQ silicone resin (M / Q=1.4, vinyl The content is 3.5wt%, Zhongshan Jianli Silicone Development Co., Ltd.) 10g, E-44 bisphenol A epoxy resin 8g, 4-vinyl epoxycyclohexane 2g, chloroplatinic acid 0.3g, tetrahydro phthalate Diformic anhydride (MHHPA) 6g and zinc acetylacetonate 0.2g were evenly mixed to obtain a mixture; the mixture was allowed to stand for 10 minutes to defoam, and it was still stable at room temperature for 1 day without delamination;

[0056] Coat the above mixture on the corresponding base material, then place it in an oven and raise the temperature to 80°C, keep it warm for 1 hour, and then keep it at 180°C for 2 hours to obtain an epoxy / organosilicon polymer composite material. The performance test results are shown in Table 1.

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Abstract

The present invention discloses an epoxy / silicone polymer composite material and a preparation method and application thereof. The present invention includes mixing 100 parts by weight of epoxy resin, 5-500 parts by weight of alkyl methylpolysiloxane and 10-200 parts by weight of MQ silicon resin for curing processing at 20-180 DEG C to obtain the epoxy / silicone polymer composite material. The epoxy resin not only self-crosslinks, but also occurs curing crosslinking with the MQ silicon resin through the alkyl methylpolysiloxane or forms interpenetrating network with high strength and glass transition temperature to achieve improvement of adhesiveness of epoxy / silicone polymer composite material. The MQ silicon resin makes the film surface roughness of the epoxy / silicone polymer composite material significantly increase by forming a multi-structure, and the water contact angle be greatly improved. The epoxy / silicone polymer composite material is available in raw materials, low in cost, and simple in preparation process. The prepared epoxy / silicone polymer composite material has excellent water resistance and stain resistance, mechanical strength, adhesion, corrosion resistance and high-temperature resistance performances.

Description

technical field [0001] The invention belongs to the field of material technology, in particular to an epoxy / organosilicon polymer composite material and its preparation method and application. Background technique [0002] Polymer nanocomposites have both the processability of organic materials and the functional and structural properties of inorganic materials, and have become a hot topic in the world today. This class of materials is the bulk of structural composites. In the process of compounding and preparing nanomaterials, nanoparticles can form nano / micro hierarchical structures in polymer matrix materials through self-assembly. Nano / microstructured composites can also be directly prepared by externally incorporating microparticles and nanoparticles. The surface of nano / micro microscopic rough structure is easily damaged by external force, which is manifested by hysteresis increase of contact angle, decrease of rolling angle, and adhesion of water droplets on the sur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L63/02C08L83/04C08L83/05C08L83/07C08F283/12
Inventor 黄月文罗广建刘伟区
Owner GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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