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A kind of ceramic silicon rubber composite tape with mica layer and preparation method thereof

A technology of ceramic silicone rubber and silicone rubber, which is applied in the direction of mica, rubber insulator, film/sheet adhesive, etc., to achieve the effect of improving strength, small internal stress and preventing relative slippage

Active Publication Date: 2022-07-19
中核同辐(长春)辐射技术有限公司 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the existing technical defects, the technical problem to be solved in the present invention is the interface problem between layers when ceramic silicone rubber and mica tape are used at the same time.
The interface problem of the two materials is solved by treating the surface of the mica tape with unsaturated double bonds on the surface, and then cross-linking the silicone rubber with the mica tape

Method used

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  • A kind of ceramic silicon rubber composite tape with mica layer and preparation method thereof
  • A kind of ceramic silicon rubber composite tape with mica layer and preparation method thereof
  • A kind of ceramic silicon rubber composite tape with mica layer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] At room temperature, mix 100 g of methyl vinyl silicone rubber on a two-roll open mill. The gap between the two rolls is 2-5mm at the beginning. After mixing for 5-20min, the gap between the rolls is adjusted to a small one, and the mixing is continued until the silicone rubber is covered. After rolling, add 50g of fumed silica and 1g of high vinyl silicone oil to mix evenly, then add 20g of calcium carbonate and 10g of low-melting glass powder and continue to mix for 5-20 minutes, then pass through the thin film to obtain a thickness of 0.1 -2mm ceramicized silicone rubber sheet; at room temperature, mix 50g methyl vinyl silicone rubber raw rubber on a two-roll open mill until the silicone rubber is wrapped, add 50g fumed silica, 1g high Vinyl silicone oil, 10 g of aluminum hydroxide, and 5 g of antimony trioxide were mixed uniformly, and then 15 g of rosin pentaerythritol ester was added to continue mixing, and finally a thin sheet was passed to obtain a self-adhesive ...

Embodiment 2

[0036] At room temperature, mix 100g of methyl vinyl silicone rubber on a two-roll open mill. The gap between the two rolls is 2-4mm at the beginning. After mixing for 10-20min, the gap between the rolls is adjusted to a small one, and the mixing is continued until the silicone rubber is covered. After rolling, add 30g of fumed silica and 2g of high vinyl silicone oil to mix evenly, then add 20g of wollastonite and 10g of low-melting glass powder and continue to mix for 5-20min, then pass through the thin sheet to obtain a thickness of 0.1 -2mm silicone rubber sheet; at room temperature, mix 70g methyl vinyl silicone rubber raw rubber on a two-roll open mill until the silicone rubber wraps the roll, add 50g fumed silica, 1g high vinyl Silicone oil and 15g aluminum hydroxide to make it evenly mixed, then add 10g rosin pentaerythritol ester to continue mixing, and finally pass through the lower sheet to obtain a self-adhesive silicone rubber sheet with a thickness of 0.5-1mm; pas...

Embodiment 3

[0038] At room temperature, mix 100 g of methyl vinyl silicone rubber on a two-roll open mill. The gap between the two rolls is 2-5mm at the beginning. After mixing for 5-20min, the gap between the rolls is adjusted to a small one, and the mixing is continued until the silicone rubber is covered. After rolling, add 50g of precipitation method white carbon black and 1g of hydroxysilicone oil to make it evenly mixed, then add 20g of mica and 10g of zinc borate and continue to mix for 5-20min, then pass through the thin sheet to obtain a silicone rubber sheet with a thickness of 0.5-2mm ; At room temperature, mix 100 g of methyl phenyl vinyl silicone rubber raw rubber on a two-roller open mill until the silicone rubber wraps the roll, add 40 g of fumed silica, 1 g of high vinyl silicone oil, 15 g of Antimony trioxide to make it evenly mixed, then add 15g of tetradecyl borate to continue mixing, and finally pass through the lower sheet to obtain a self-adhesive silicone rubber shee...

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Abstract

The invention relates to a ceramic silicon rubber composite tape with a mica layer and a preparation method thereof. The composite tape has a three-layer structure and is prepared by the following steps: firstly preparing a ceramic silicon rubber sheet, and then preparing a self-adhesive silicone rubber Finally, the surface-treated mica tape is cold-pressed with three layers of ceramicized silicone rubber sheet and self-adhesive silicone rubber sheet, and cross-linked by irradiation to prepare a ceramicized silicone rubber composite tape with a mica layer in the middle. The invention obtains a composite tape with a three-layer structure, which has excellent high temperature resistance, flame retardant performance, mechanical strength and bonding performance, can be widely used in the wire and cable industry, and greatly improves the use safety of the cable.

Description

technical field [0001] The invention relates to the field of ceramicized silicon rubber composite belts. Specifically, it relates to a ceramicized silicone rubber composite tape with a mica layer and a preparation method thereof. Background technique [0002] With the rapid development of the social economy and the improvement of people's living standards, large supermarkets, hospitals, and high-rise buildings are rising. If a fire breaks out in these large places, it will cause serious safety accidents. In the process of fire accident, how to ensure the unobstructed circuit, make the fire-fighting equipment operate normally, provide more time for firefighters to rescue trapped people and reduce property losses, is particularly important. As we all know, the wires and cables used in some important places are also gradually transitioning from ordinary cables to fire-resistant and flame-retardant cables, and now there are two kinds of fire-resistant cables that are more commo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/29C09J7/30C08J5/18C08L83/07C08K7/26C08K3/26C08K3/40C09J183/07C09J193/04C09J11/04H01B3/02H01B3/04H01B3/28H01B7/02H01B7/295
CPCC09J7/29C09J7/30C08J5/18C09J183/04C09J11/04H01B7/0225H01B7/295H01B3/04H01B3/025H01B3/28C08J2383/07C08J2483/07C08K7/26C08K2003/265C08K3/40C08K2003/2227C09J2301/122C09J2301/16C09J2301/408C09J2400/10C09J2483/006C09J2483/00C08L83/04C08L93/04C08K3/22C08K3/2279
Inventor 张宏岩冷冰冰刘洋朱春卉许文革刘佰军单曾亮王乐陈伯东
Owner 中核同辐(长春)辐射技术有限公司
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