Addition type cross-linking vulcanized polydisiloxane elastomer

A technology of polydisiloxane and polysiloxane, which is applied in the field of polydisiloxane polymer elastomer and its preparation, can solve the problems that the preparation method of new silicone elastomer materials has not been reported, and achieve unique light Luminescent properties, good mechanical properties, simple vulcanization and cross-linking process

Inactive Publication Date: 2008-06-04
YANTAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are no reports on the novel organosilicon elastomer materials prepared by using such polymers through the hydrosilylation reaction and their preparation methods.

Method used

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  • Addition type cross-linking vulcanized polydisiloxane elastomer
  • Addition type cross-linking vulcanized polydisiloxane elastomer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 100 parts by weight of polydisiloxane;

[0020] 8 parts by weight of methyl triallyl silane coupling agent;

[0021] Chloroplatinic acid catalyst (calculated as platinum) 0.002 parts by weight.

[0022] Mix the measured amount of polydisiloxane or methyl triallyl silane coupling agent (crosslinking agent) and chloroplatinic acid catalyst evenly, then transfer and pour into the mold, and react at a temperature of 25°C for 1 to 2 hours After 24 hours, it is completely vulcanized, and the elastic body with certain hardness and certain mechanical properties is prepared. The results of the mechanical properties are as follows: tensile strength: 1.32MPa, elongation at break: 180%, Shore A Hardness: 48.

Embodiment 2

[0024] 50 parts by weight of polydisiloxane;

[0025] 50 parts by weight of polysiloxanes containing silicon-hydrogen bonds and hydrocarbon groups in the side chain;

[0026] 35 parts by weight of vinyl polysiloxane;

[0027] Chloroplatinic acid catalyst (calculated as platinum) 0.002 parts by weight.

[0028] Mix the measured amount of polydisiloxane and the mixture of polysiloxane containing silicon-hydrogen bonds and hydrocarbon groups in the side chain, vinyl polysiloxane, and chloroplatinic acid catalyst, and transfer it into the mold after mixing evenly. After reacting at 25°C for 1 to 2 hours, it will be surface dry, and after 24 hours, it will be completely vulcanized, and an elastomer rubber with a certain hardness is prepared. The results of the mechanical properties are as follows: tensile strength: 3.68MPa, elongation at break: 285%, Shore A hardness: 30.

Embodiment 3

[0030] 5 parts by weight of polydisiloxane;

[0031] 95 parts by weight of polysiloxanes containing silicon-hydrogen bonds and hydrocarbon groups in the side chain;

[0032] 30 parts by weight of vinyl polysiloxane;

[0033] Chloroplatinic acid catalyst (calculated as platinum) 0.002 parts by weight.

[0034] Mix the measured amount of polydisiloxane and the mixture of polysiloxane containing silicon-hydrogen bonds and hydrocarbon groups in the side chain, vinyl polysiloxane, and chloroplatinic acid catalyst, and transfer it into the mold after mixing evenly. After reacting at 25°C for 1 to 2 hours, it will be surface dry, and after 24 hours, it will be completely vulcanized, and an elastomer rubber with a certain hardness is prepared. The results of the mechanical properties are as follows: tensile strength: 9.82MPa, elongation at break: 620%, Shore A hardness: 32.

[0035]Similarly, other embodiments can also be provided according to the technical solution provided by the...

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Abstract

The invention relates to an addition-typed crosslinked sulfide poly disiloxane elastomer. The addition-typed crosslinked sulfide poly disiloxane elastomer is made from that poly disiloxane (for short) in which a main chain comprises repeated units of silicon and silicon oxide and a side chain comprises silicon-hydrogen bond and alkyl group or the blends thereof and polysiloxane of which side chain comprises silicon-hydrogen bond and alkyl group, under the effect of the catalyst, are crosslinked and vulcanized with crosslinking agent with over two unsaturated alkyls or vinyl-containing polysiloxane under normal or medium temperature. The proportion of each ingredient is that 1-100 weight potions of the poly disiloxane, 0-99 weight portions of the polysiloxane the side chain of which comprises silicon-hydrogen bond and alkyl group, 5-40 weight portions of the crosslinking agent or the vinyl-containing polysiloxane and 0.001- 0.005 weight portions of the catalyst. The addition-type crosslinked sulfide poly disiloxane elastomer has the advantages of good light transmittance, good thermal stability, and good processability such as easy film molding and casting molding and good mechanical property as well. The addition-type crosslinked sulfide poly disiloxane elastomer has wild application prospect in such fields as ceramic precursor, photo-induced etching material, semiconductor material, nonlinear optical material, photorefractive material and hole transport material, etc.

Description

Technical field: [0001] The invention relates to a silicone polymer elastomer, in particular to a polydisiloxane polymer elastomer containing silicon-hydrogen bonds and a preparation method thereof. Background technique: [0002] Polydisiloxane and its elastomer materials have potential application prospects, such as special properties such as thermal stability, electronic properties and optical properties. Disiloxane polymers are also known as polydisiloxanes [Poly(oxydisilanes)] or simply polysiloxane ethers [Poly(silaethers)]. Since the main chain of this type of polymer contains both Si-O-Si bond and Si-Si bond structure, the polymer material obtained after cross-linking and vulcanization has good processability of polysiloxane , high and low temperature resistance, and some special properties of polysilane, such as: strong ultraviolet absorption, photoluminescence, electroluminescence and high electrical conductivity. [0003] J.Chojnowski et al. successively in 1979 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/14C08J3/24
Inventor 崔孟忠
Owner YANTAI UNIV
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