Silicone rubber composite rubber tube lined with polytetrafluoroethylene and manufacturing method thereof

A technology of polytetrafluoroethylene and composite rubber hose, which is applied in the direction of rubber layered products, laminated, layered products, etc., and can solve the problem of large thickness of polytetrafluoroethylene lined pipe, poor oil resistance, poor solvent resistance, and low sealing performance And other problems, to achieve the effect of improving the scope of use, low equipment cost, and perfect sealing

Active Publication Date: 2012-07-04
XIAMEN CHUANGXINYUAN RUBBER PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention has been accomplished in view of at least one of the above-mentioned problems, and an object of the present invention is to provide a silicone rubber composite hose manufacturing process with polytetrafluoroethylene as an inner liner, which can not onl

Method used

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  • Silicone rubber composite rubber tube lined with polytetrafluoroethylene and manufacturing method thereof
  • Silicone rubber composite rubber tube lined with polytetrafluoroethylene and manufacturing method thereof
  • Silicone rubber composite rubber tube lined with polytetrafluoroethylene and manufacturing method thereof

Examples

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Example Embodiment

[0019] Example 1

[0020] Attached below Figure 1-2 To describe in detail the silicone rubber composite hose of the present invention and its manufacturing process.

[0021] A manufacturing process of a silicone rubber composite hose with polytetrafluoroethylene as the inner lining layer, including the following steps: plasma treatment of the polytetrafluoroethylene film tape 2; winding the plasma-treated polytetrafluoroethylene film tape 2 in the The mold core 1 of the required size can be wound in different layers according to the needs; the glass tape 3 is wound on the outer layer of the PTFE film tape 2, and then heated and shaped. After the shaping is completed, the glass tape 3 is removed to form the PTFE inner Liner 4, evenly brush the surface of the tetrafluoroethylene lining tube 4 with sodium-naphthalene-tetrahydrofuran solution or directly soak in the sodium-naphthalene-tetrahydrofuran solution; clean the surface of the tetrafluoroethylene lining tube 4 with alcohol an...

Example Embodiment

[0030] Example 2

[0031] See figure 2 , A silicone rubber composite hose includes from the inside to the outside: a polytetrafluoroethylene lined tube 4; a first silicone rubber layer 5; a reinforcing layer 6; and a second silicone rubber layer 5. Preferably, the reinforcing layer 6 may preferably include polyester fiber cloth, glass cloth, or carbon fiber cloth.

[0032] Preferably, the silicone rubber composite hose can be manufactured through the following manufacturing process. Specifically, 1 first, put the PTFE film tape 2 in the plasma chamber, the pressure is 100pa, the oxygen flow is 10L / min and the power of 350W, and the plasma bombardment treatment is performed for 3 minutes; 2 the plasma treated PTFE film Tape 2 is wound on the mold core 1 of the required size, and can be wound in different layers according to the needs; 3 After winding, a layer of glass tape 3 is wound on the outer layer of the PTFE film tape 2, and then it can be placed in the oven for heating For...

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Abstract

The invention provides a silicone rubber composite rubber tube lined with polytetrafluoroethylene, comprising a polytetrafluoroethylene lining tube, a first silicone rubber layer, a reinforced layer and a second silicone rubber layer from inside to outside in sequence. The silicone rubber composite plastic tube solves the problems of low performance of the silicone rubber in oil resistance and solvent resistance, and greatly increases the use range of the silicone rubber tube. Additionally, the invention also provides a manufacturing method of the silicone rubber composite rubber tube, which improves the bonding property of the polytetrafluoroethylene lining tube with the silicone rubber by three methods, and comprises steps of: (1) performing plasma treatment to a polytetrafluoroethylene film belt; (2) tightly winding a layer of glass cloth on the outer surface of the polytetrafluoroethylene film belt after the polytetrafluoroethylene film belt is wound on a mould core so as to make the surface of the polytetrafluoroethylene film belt acquire the same textures to increase the surface area; (3) performing sodium-naphthalene-tetrahydrofuran solution to the outer surface of the shaped polytetrafluoroethylene lining tube to improve the surface polarity and the surface tension of the tube.

Description

technical field [0001] The invention provides a silicone rubber composite hose with polytetrafluoroethylene as an inner lining layer and a manufacturing process. The silicone rubber composite hose has the effects of high temperature resistance, low temperature resistance and solvent resistance. Background technique [0002] Silicone rubber has excellent properties such as excellent heat resistance, cold resistance, ozone resistance and atmospheric aging resistance, but due to its low oil resistance and solvent resistance, the scope of use of silicone rubber is largely limited. [0003] The prior art patent document ZL200510013565.4 discloses a preparation method of silicone rubber cloth and wrapped rubber hose, in which first the silicone cloth is cut according to the size required by the product with a cutting machine, and it is coated on the mandrel, and then Use cotton water cloth or plastic film to evenly cover the surface of the wrapped hose for vulcanization. The sili...

Claims

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Application Information

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IPC IPC(8): B32B1/08B32B17/02B32B17/10B32B25/10B32B27/12B32B27/16B32B27/30B32B27/36B32B37/06B32B37/10B32B38/16
Inventor 刘建辉
Owner XIAMEN CHUANGXINYUAN RUBBER PROD
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