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Fluoro-rubber adhesive tape and manufacturing method thereof

A production method and technology of fluororubber, which is applied to rubber layered products, chemical instruments and methods, and other household appliances, etc., can solve problems such as difficulty in bonding, hardening of the hand, and delamination of protective materials, achieving obvious functional advantages and production The effect of low cost and high protection level

Inactive Publication Date: 2017-05-10
PLA GENERAL ARMAMENTS DEPT HEALTH & DISEASE PREVENTION TEAM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Fluororubber materials are flame-retardant, corrosion-resistant, and high-temperature-resistant, and are often used in the field of chemical protection. However, due to their excellent chemical stability, fluororubber is difficult to combine with other substances. The peeling fastness is low, and the problems of delamination and blistering of protective materials are prone to occur
In order to enhance the peel strength between the fluororubber layer and the base cloth, it is usually necessary to use rubber together or pretreat the base cloth. The existing treatment process is complicated and will greatly reduce the protective performance of the rubber cloth or make it feel hard.
Therefore, the rubber cloth prepared by the existing process can no longer fully meet the needs of high-performance protective equipment.

Method used

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  • Fluoro-rubber adhesive tape and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 100 parts of fluororubber, 10 parts of magnesium hydroxide, 15 parts of calcium hydroxide, 3 parts of anti-aging agent, 5 parts of vulcanizing agent, and 30 parts of titanium dioxide are masticated and kneaded to form a rubber compound;

[0020] The mixed rubber is calendered to prepare a continuous tape with a thickness of 0.15mm, the calendering temperature is 80°C, and the speed is 20m / min;

[0021] Place the grid fabric between two layers of rubber cloth, and carry out drum vulcanization at a temperature of 170°C for 10 minutes, so that the calendered rubber cloth and the grid fabric can be vulcanized and bonded to form a fluororubber rubber cloth.

[0022] The thickness of the fluorine rubber adhesive plaster prepared by the above method is 0.40mm, and the weight is 550g / m 2 . The peeling fastness to the base fabric is 0.81N / m, the limiting oxygen index is 29, and the breaking strength can reach 350N / 5cm. It is resistant to 98% sulfuric acid, 40% sodium hydroxide,...

Embodiment 2

[0024] Plasticize and knead 100 parts of fluororubber, 15 parts of calcium hydroxide, 2 parts of anti-aging agent, 6 parts of vulcanizing agent and 20 parts of titanium dioxide to form a mixed rubber.

[0025] The mixed rubber is calendered into a continuous rubber cloth with a thickness of 0.18mm by calendering, the calendering temperature is 80°C, and the speed is 20m / min.

[0026] Vulcanization lamination: Put the aramid mesh fabric between two layers of fluororubber tapes, enter the drum for vulcanization, and apply slight tension to the three layers of materials to ensure smoothness when entering the drum vulcanization equipment. The vulcanization temperature is 180°C, and the guaranteed vulcanization time is 10 minutes.

[0027] The thickness of the fluorine rubber adhesive plaster that present embodiment makes is 0.45mm, and limiting oxygen index is 36.4, and breaking strength can reach 500N / 5cm, and the nitric acid of 98% concentrated sulfuric acid, 40% sodium hydroxid...

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Abstract

The invention discloses a fluoro-rubber adhesive tape and a manufacturing method thereof. The fluoro-rubber adhesive tape comprises a basic fabric and a rubber layer. The basic fabric is a grid fabric, rubber is arranged on two sides of the grid fabric and are fit through fabric mesh holes. The manufacturing method comprises the steps that the fluoro-rubber is plastified and mixed according to a formula, and mixed rubber having good processing properties is formed by adopting a thin-passing process for aiding; the mixed rubber is prepared into the continuous adhesive tape with the thickness of 0.15-0.20 mm through a calendaring process; the grid fabric is arranged between the two adhesive tapes for sulfur bulging, so that the purpose of fitting and vulcanizing the calendared rubber adhesive tape and the grid fabric is achieved, the vulcanizing temperature is 150-180 DEG C, and the time is 6-15 minutes. The fluoro-rubber adhesive tape produced by adopting the manufacturing method is retardant to flame, high in stripping firmness, resistant to high temperature and corrosion from acid, alkali, a strong oxidant, benzene and other organic solvents.

Description

technical field [0001] The invention relates to the technical field of production of chemical protection materials, in particular to a fluororubber adhesive plaster and a manufacturing method thereof. Background technique [0002] Fluororubber materials are flame-retardant, corrosion-resistant, and high-temperature-resistant, and are often used in the field of chemical protection. However, due to their excellent chemical stability, fluororubber is difficult to combine with other substances. The peeling fastness is low, and the problems of delamination and blistering of protective materials are prone to occur. In order to enhance the peel strength between the fluororubber layer and the base fabric, it is usually necessary to use rubber together or pretreat the base fabric. The existing treatment process is complicated and will greatly reduce the protective performance of the rubber fabric or make it feel hard. Therefore, the rubber cloth prepared by the existing technology c...

Claims

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Application Information

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IPC IPC(8): B32B25/04B32B37/06B32B37/10C08L27/12C08K3/22
CPCB32B25/042B32B37/06B32B37/10B32B2307/306B32B2307/3065B32B2307/714B32B2571/00C08K3/22C08K2003/2206C08K2003/2224C08K2003/2241C08L27/12
Inventor 张光友彭清涛丛继信范春华李珍李宝庭王力曹晔
Owner PLA GENERAL ARMAMENTS DEPT HEALTH & DISEASE PREVENTION TEAM
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