Fluoroplastic-rubber bonding method

A technology of fluoroplastics and rubber, which is applied in the direction of surface pretreatment bonding methods, etc., can solve problems such as the need to improve the bonding strength, affect the performance of rubber, and only apply rubber, and achieve good bonding effect, wide applicability, and high adhesion. combined high strength effect

Active Publication Date: 2018-06-05
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method is complicated in process, single rubber is applicable, affects the

Method used

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  • Fluoroplastic-rubber bonding method

Examples

Experimental program
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Effect test

Embodiment 1

[0029] (1) Mix 2g 1,8-diazabicyclo[5,4,0]undec-7-ene, 2g epichlorohydrin, 1g triallyl isocyanurate and 100g octamethylcyclotetra The siloxane is mixed evenly and prepared as a treatment solution;

[0030] (2) Put the THV fluoroplastic with clean surface in the treatment solution, treat it at 120°C for 5 minutes, then take it out and wash it in ethanol for 5 minutes and then dry it;

[0031] (3) Composite the processed THV fluoroplastics with sheet-shaped nitrile rubber compound, and achieve bonding during the rubber vulcanization process.

Embodiment 2

[0033] (1) Mix 2g 1,8-diazabicyclo[5,4,0]undec-7-ene, 3g epichlorohydrin, 2g allyl glycidyl ether and 100g N,N-dimethylethane The amides are mixed evenly to make a treatment solution;

[0034] ⑵Put the surface-cleaned PVDF fluoroplastic in the treatment solution, treat it at 130°C for 15 minutes, then take it out and wash it in ethanol for 6 minutes and then dry it;

[0035] (3) Composite the treated PVDF fluoroplastic with sheet-shaped nitrile rubber compound, and achieve bonding during the rubber vulcanization process.

Embodiment 3

[0037] (1) Mix 1g 1,5-diazabicyclo[4,3,0]nona-5-ene, 2g epichlorohydrin, 2g triallyl isocyanurate and 100g octamethylcyclotetrasilicon The oxane is mixed evenly and prepared as a treatment liquid;

[0038] (2) Put the THV fluoroplastic with clean surface in the treatment solution, treat it at 110°C for 5 minutes, then take it out and wash it in ethanol for 4 minutes and then dry it;

[0039] ⑶ Composite the treated THV fluoroplastics with sheet-shaped fluorosilicone rubber compound, and achieve bonding during the rubber vulcanization process.

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Abstract

The invention relates to a fluoroplastic-rubber bonding method. The method comprises the following steps: (1) preparing a treatment liquid from a catalyst, a treatment agent and a solvent; (2) puttingsurface cleaned fluoroplastic into the treatment liquid, carrying out treatment at 70-140 DEG C for 1-30 minutes, taking out, cleaning, and airing; and (3) compounding the treated fluoroplastic withrubber, so as to realize bonding in a vulcanization process of the rubber. Compared with the prior art, the bonding method has the advantages that the bonding problem between the fluoroplastic and therubber is solved, the method is simple and wide in applicability, the performance of the rubber is not influenced, and meanwhile, the bonding effect between the fluoroplastic and the rubber is good,and the bonding strength is high.

Description

technical field [0001] The invention relates to a method for bonding fluoroplastics and rubber, and belongs to the technical field of plastic modification. Background technique [0002] Fluoroplastics are an important variety of plastics. Fluoroplastics are paraffin polymers in which some or all of the hydrogen is replaced by fluorine. Since the advent of fluoroplastics, they have attracted widespread attention due to their excellent dielectric properties, chemical corrosion resistance, high and low temperature resistance, waterproof, low friction coefficient, and good self-lubricating properties. At present, many varieties have been developed, including Polytetrafluoroethylene PTFE, tetrafluoroethylene / hexafluoropropylene / vinylidene fluoride copolymer THV, polyvinylidene fluoride PVDF, ethylene / tetrafluoroethylene copolymer ETFE, chlorotrifluoroethylene / ethylene copolymer ECTFE, tetrafluoroethylene / Perfluoro (n-) propyl vinyl ether copolymer PFA and polyvinyl fluoride PVF...

Claims

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Application Information

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IPC IPC(8): C09J5/02
CPCC09J5/02
Inventor 管涌郑安呐许祥李想危大福杨芮
Owner EAST CHINA UNIV OF SCI & TECH
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