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Heat vulcanization bonding technology for fluorine rubber and silica gel

A technology of thermal vulcanization and fluorine rubber, which is applied in the field of rubber manufacturing, can solve the problems of unsatisfactory peel strength and high cost, and achieve the effects of meeting actual production needs, realizing industrialized production, and reducing production costs

Inactive Publication Date: 2012-11-21
NINGBO FENGMAO FAR EAST RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the turbocharger hose product that it makes, its cost is higher, and peel strength is still unsatisfactory

Method used

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  • Heat vulcanization bonding technology for fluorine rubber and silica gel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0022] A heat vulcanization bonding process of fluorine rubber and silica gel. The process uses a bonding composition to be rolled into a thin sheet, and is placed between the inner layer of fluorine rubber and silica gel to form a semi-finished product of the inner layer of fluorine rubber, bonding composition and silica gel structure, and then Heat vulcanization to bond and fix the inner layer of fluorine rubber and silica gel. The process conditions for heat vulcanization are: wrap the outer surface of the semi-finished product with rubber hose, use cellophane or nylon tape to pressurize, and the vulcanization parameter is 170°C / 30 minutes; The vulcanization parameters are 160-170°C / 10-15 minutes.

[0023] The inner layer of fluorine rubber is mixed with the components shown in Table 1.

[0024] Table 1 (unit: kg)

[0025] Example Components 1 2 3 4 5 Fluorine rubber FKM-DS2601 100 100 100 100 100 Activated Magnesium Oxide 10 10 8 8 9 ...

Embodiment 6

[0030] The specific scheme is the same as in Example 1, except that in the bonding composition, the weight ratio of the inner layer of fluorine rubber, silica gel and fluorine-based coupling agent F-1 is 3.8:4.6:1.

Embodiment 7

[0032] The specific scheme is the same as in Example 1, except that in the bonding composition, the weight ratio of the inner layer of fluorine rubber, silica gel and fluorine-based coupling agent F-1 is 4.2:5.5:1.

[0033]

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PUM

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Abstract

The invention belongs to the technical field of rubber manufacture, and relates to a heat vulcanization bonding technology for fluorine rubber and silica gel with low cost and excellent performance, the technology enabling ordinary fluorine rubber and silica gel to bond vulcanizedly. The heat vulcanization bonding technology for the fluorine rubber and the silica gel rolls bonding compositions to thin sheets, puts the bonding compositions between the inner layer fluorine rubber and the silica gel to form a semi-finished product having a structure of the inner layer fluorine rubber, the bonding compositions and the silica gel, and then heats and vulcanizes to fixedly bond the inner layer fluorine rubber and the silica gel. The inner layer fluorine rubber is mixed from the following components in part by weight: 100 parts of fluorine rubber, 8 to 10 parts of active magnesium oxide, 5 to 6 parts of calcium hydrate, 0.5 to 1 part of magnesium methacrylate, 8 to 10 parts of carbon black, 5 to 6 parts of calcium silicate, 1.2 to 1.5 parts of bisphenol AF, 2 to 3 parts of a cross-linking agent and 2 to 2.5 parts of a vulcanizing agent. The bonding compositions is mixed from the inner layer fluorine rubber, the silica gel and a fluorine coupling agent F-1 in a weight ratio of 3.8-4.2 : 4.6-5.5 : 1. The technology employs an intermediate transition layer to solve the bonding problem of the fluorine rubber and the silica gel.

Description

technical field [0001] The invention belongs to the technical field of rubber manufacturing, and relates to a thermal vulcanization bonding process for fluorine rubber and silica gel. Background technique [0002] Turbocharging technology is highly valued because it saves fuel and is economical, and more importantly, it is more environmentally friendly. With the advancement of turbocharging technology and the development of the turbo diesel engine market, the demand for the performance and yield of materials used in these system components has increased. Turbocharger hoses typically use VMQ silicone with a fluoroelastomer liner (FVMQ fluorosilicone or FKM fluorocarbon). The requirements for these rubber materials are excellent high temperature oil resistance and fuel resistance, higher operating temperature - usually up to 200 ° C, compound economy and higher adhesion to VMQ silicone, requiring greater than 1.4KN / m. [0003] At present, there are few successful cases of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/12B32B25/04B32B25/20C08L27/12C08K13/02C08K3/22C08K5/098C08K3/04C08K3/34C08K5/13C09J183/04C09J127/12B29B7/00B29C35/00
Inventor 蒋春雷
Owner NINGBO FENGMAO FAR EAST RUBBER
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