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Ultraviolet radiation cross-linked silicone tube and preparation method thereof

A silicone tube and external irradiation technology, applied in the field of silicone tubes, can solve the problems of high energy consumption, long vulcanization time, and low production efficiency

Pending Publication Date: 2021-08-20
SHENZHEN WOER HEAT SHRINKABLE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In related technologies, most of the production of silicone tubes is chemically cross-linked, which requires heating and vulcanization. The heating temperature is 200°C to 250°C. The heating tunnel is 8 meters to 10 meters long, and the vulcanization time is long, resulting in low production efficiency and energy consumption Big

Method used

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  • Ultraviolet radiation cross-linked silicone tube and preparation method thereof
  • Ultraviolet radiation cross-linked silicone tube and preparation method thereof
  • Ultraviolet radiation cross-linked silicone tube and preparation method thereof

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preparation example Construction

[0034] The present invention also proposes a method for preparing the ultraviolet radiation crosslinked silica gel tube, which is used to prepare the above ultraviolet radiation crosslinked silica gel tube, which is characterized in that it comprises the following steps:

[0035] Masterbatch processing: Put methyl vinyl silicone rubber raw rubber, coupling agent, plasticizer and reinforcing agent into the kneader for kneading and kneading, thin out the sheet, cool and place to obtain the kneaded material;

[0036] Preparation of semi-finished products: adding ultraviolet photoinitiator and kneading with the kneading material, thinning, and cutting into strips;

[0037] Extrusion molding: put the above-mentioned semi-finished products into a cold-feed extruder and extrude to obtain the product to be irradiated; the extrusion temperature is 18°C ​​to 30°C;

[0038] Irradiation: The above-mentioned items to be irradiated are irradiated with ultraviolet light in the ultraviolet li...

Embodiment 1

[0048] A kind of ultraviolet radiation cross-linked silica gel tube, its preparation material includes: 100 parts of methyl vinyl silicone rubber raw rubber, 1.0 parts of dimethyl silicone oil, 1.0 parts of coupling agent, and 10 parts of fumed silica in parts by weight. part, 30 parts of aluminum hydroxide, 30 parts of magnesium hydroxide, 0.5 part of benzophenone.

Embodiment 2

[0050] A kind of ultraviolet radiation cross-linked silica gel tube, its preparation material comprises: 100 parts of methyl vinyl silicone rubber raw rubber, 2.0 parts of dimethyl silicone oil, 1.0 parts of coupling agent, and 10 parts of fumed silica in parts by weight. part, 30 parts of aluminum hydroxide, 30 parts of magnesium hydroxide, 0.5 part of benzophenone.

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Abstract

The invention provides an ultraviolet radiation cross-linked silicone tube and a preparation method thereof. According to a technical scheme in the invention, methyl vinyl silicone rubber is used as a main raw material, a coupling agent, an enhancer and a reinforcing agent are added, kneading and mixing are conducted at normal temperature, an ultraviolet light initiator is added after thinning and slice formation, then extrusion molding is conducted, and ultraviolet radiation is performed so as to obtain the ultraviolet radiation cross-linked silicone tube. According to the above technical scheme, ultraviolet crosslinking is adopted, vulcanization is not needed, substances harmful to the atmosphere are not generated, high-temperature mixing is not needed, an extrusion temperature is low, production energy consumption is greatly reduced, a heating and drying tunnel does not need to be arranged, an occupied area is small, requirements on the space area of a production site is reduced, ultraviolet crosslinking time is short, and energy consumption is low; and therefore, the production efficiency of the silicone tube is improved, the problems of low production efficiency, high energy consumption, long crosslinking time, serious pollution and the like caused by chemical crosslinking vulcanization are solved, and the production requirement for environmental protection is met.

Description

technical field [0001] The invention relates to the technical field of silicone tubes, in particular to an ultraviolet radiation crosslinked silicone tube and a preparation method thereof. Background technique [0002] Silicone rubber is an elastomer with polysiloxane as the main chain. It has excellent heat resistance, aging resistance, and electrical insulation. It is widely used in electronic appliances and other fields. Silicone rubber tube is a tube shaped by extrusion or injection vulcanization using elastomer material. In related technologies, most of the production of silicone tubes is chemical crosslinking, which requires heating and vulcanization. The heating temperature is 200°C to 250°C. The heating tunnel is 8 meters to 10 meters long, and the curing time is long, resulting in low production efficiency and energy consumption. big. Contents of the invention [0003] The main purpose of the present invention is to provide an ultraviolet radiation cross-linked ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/04C08K7/26C08K3/22C08K5/3492
CPCC08L83/04C08L2205/025C08L2312/06C08L2203/18C08K2003/2227C08K2003/2224C08K7/26C08K3/22C08K5/34928
Inventor 成家添张龙张润川饶喜梅胡习富罗文龙
Owner SHENZHEN WOER HEAT SHRINKABLE MATERIAL