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Dual-curing composition

A dual-curing and composition technology, applied to light-curing compositions, can solve problems such as limited methods through the field of thermal curing, and achieve the effect of high strength and high hardness

Inactive Publication Date: 2014-02-12
甘春丽 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For silicone rubber, in order to obtain higher strength and hardness, it is necessary to use reinforcing materials, and the method of preparing high-performance transparent silicone rubber is relatively limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The dual curing composition of this example contains: 20 parts of vinyl-terminated divinyl silicone oil with a viscosity of 10000 mPa.S, 2 parts of active hydrogen-terminated hydroxyl-terminated silicone oil, 0.2 part of benzodiazepine, 0.01 part of 2,5- Dimethyl-2,5-bis(tert-butylperoxy)hexane, 5 parts of DPHA, 0.2 parts of 184, 0.15 parts of fluorosilicone defoamer.

[0043] The composition was heated and cured at 160° C. for 15 minutes, and then UV cured to obtain a dual-cured material, which had a rubber texture.

Embodiment 2

[0045] The dual curing composition of this embodiment comprises: 60 parts of vinyl-terminated divinyl silicone oil with a viscosity of 10000 mPa.S, 20 parts of active hydrogen-terminated hydroxyl-terminated silicone oil, 2 parts of ethynyl cyclohexanol, and 0.2 parts of chloroplatinic acid solution , 30 parts of 6145 (acrylate resin), 30 parts of DPHA, 7 parts of 184, 4 parts of fluorosilicone defoamer.

[0046] The composition was heat-cured at 160° C. for 15 minutes, and then UV-cured to obtain a dual-cure material.

Embodiment 3

[0048] The dual curing composition of this embodiment comprises: 10 parts of vinyl-terminated divinyl silicone oil with a viscosity of 850 mPa.S, 20 parts of vinyl-terminated divinyl silicone oil with a viscosity of 1000 mPa.S, 60 parts of vinyl-terminated divinyl silicone oil with a viscosity of 10000 mPa.S Vinyl-terminated divinyl silicone oil, 10 parts of vinyl-terminated divinyl silicone oil with a viscosity of 5,000,000mPa.S, 20 parts of active hydrogen-terminated hydroxyl-terminated silicone oil, 30 parts of active hydrogen-terminated and side chains also containing active hydrogen Hydrogen-containing silicone oil, 4 parts of diallyl maleate, 6 parts of ethynyl cyclohexanol, 0.6 parts of chloroplatinic acid solution, 0.4 parts of platinum-vinyl siloxane, 90 parts of CN2302 (acrylate resin), 10 parts Parts of methyl methacrylate, 7 parts of 184, 3 parts of TPO, 4.4 parts of fluorine-containing defoamer, 5 parts of fluorosilicon defoamer, 0.1 part of polymerization inhibito...

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Abstract

The invention discloses a dual-curing composition which comprises addition type silicone oil, hydrogen-containing silicone oil, an inhibitor, a catalyst, a (methyl) acrylic ester compound, a light initiator and an auxiliary, and selectively comprises silicon modified (methyl) acrylic ester, a filler, a reinforced silica resin and a solvent. Due to adoption of the composition disclosed by the invention, dual-curing of heating and ultraviolet light can be conveniently achieved, materials of different properties such as rubber and plastics can be prepared, and materials with different physical characteristics and different color effects can be prepared.

Description

technical field [0001] The present invention relates to dual-cure compositions, especially compositions curable by heat and light. Such compositions can be applied in the fields of dipping, 3D printing, molding, casting, spin coating, lamination, bonding, protection and the like. Background technique [0002] As a synthetic organic polymer with a special structure, silicone rubber has better high and low temperature resistance, ultraviolet resistance, radiation resistance, weather resistance, electrical insulation, hydrophobicity, flame retardancy, high air permeability, physiological inertia, etc. than other ordinary rubbers. Therefore, it is widely used in aerospace, aviation, electrical and electronic, light industry, machinery, construction, chemical industry, medical and health, daily necessities, etc., and has become an important and indispensable new polymer material in the national economy. For silicone rubber, in order to obtain higher strength and hardness, it is ...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/05C08L33/08C08L33/10C08L83/04C08K13/06C08K9/06C08K3/36C08K5/3447C08K5/103C08K5/05C08K5/11C08L51/06C08L33/00C08J3/28C08J3/24
Inventor 廖张洁甘春丽
Owner 甘春丽
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