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Laminate

A technology of laminates and rubber layers, applied in the field of laminates, can solve problems such as inability to impart adhesiveness

Inactive Publication Date: 2014-12-24
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even with these methods, sufficient adhesiveness cannot be imparted

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0148] (Preparation of fluororubber composition and production of fluororubber sheet)

[0149] The materials shown in Table 1 below were kneaded using an 8-inch open mill whose temperature was adjusted to 25° C. to obtain a sheet-shaped fluororubber composition (fluororubber sheet) about 3 mm thick.

[0150] (Preparation of non-fluororubber composition and production of unvulcanized non-fluororubber sheet)

[0151] The materials shown in the following Table 2 were kneaded using an 8-inch open mill whose temperature was adjusted to 25° C. to obtain a sheet-shaped non-fluororubber composition (non-fluororubber sheet) having a thickness of about 3 mm.

[0152] (manufacturing of laminates)

[0153] The above-mentioned fluororubber composition (fluororubber sheet) with a thickness of about 3 mm is laminated with the above-mentioned non-fluororubber composition (non-fluororubber sheet) with a thickness of about 3 mm, and a resin with a width of about 10 mm to 15 mm is placed at one...

Embodiment 2～9 and comparative example 1～3

[0155] A non-fluororubber composition was prepared in the same manner as in Example 1 except that the type and amount of the compounding agent of the non-fluororubber composition (non-fluororubber sheet) were changed as shown in Table 2, and the vulcanization characteristics were evaluated. Moreover, the laminated body was produced similarly to Example 1, and the adhesiveness of the laminated body was evaluated. The results are shown in Table 2.

[0156] 【Table 1】

[0157]

[0158]

[0159] (adhesion evaluation)

[0160] ○...The vulcanized non-fluororubber sheet or fluororubber sheet suffered material failure at the interface of the laminate and could not be peeled off from the interface.

[0161] ×... It is relatively easy to peel off from the interface of the laminated body.

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PUM

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Abstract

The purpose of the present invention is to provide a laminate wherein a non-fluorine rubber layer and a fluorine rubber layer are able to be firmly adhered to each other without using an adhesive and without subjecting the non-fluorine rubber layer and the fluorine rubber layer to a surface treatment. The present invention is a laminate which is provided with a fluorine rubber layer (B) and a non-fluorine rubber layer (A) that is laminated on the fluorine rubber layer (B). This laminate is characterized in that: the non-fluorine rubber layer (A) is formed from a non-fluorine rubber composition, and the non-fluorine rubber composition contains (a1) an unvulcanized non-fluorine rubber, (a2) at least one compound that is selected from the group consisting of 1,8-diazabicyclo(5.4.0)undecene-7 salts and 1,8-diazabicyclo(5.4.0)undecene-7, (a3) magnesium oxide and (a4) silica; and the fluorine rubber layer (B) is formed from a fluorine rubber composition that contains (b1) a fluorine rubber.

Description

technical field [0001] The present invention relates to a laminate. Background technique [0002] Fluorine rubber exhibits excellent chemical resistance, solvent resistance, and heat resistance, and thus is widely used in various fields such as the automobile industry, the semiconductor industry, and the chemical industry. For example, in the automobile industry, they are used as hoses, sealing materials, and the like for engines and peripheral devices, AT devices, fuel systems, peripheral devices, and the like. [0003] Although fluororubber exhibits various excellent characteristics as described above, it is very expensive compared with ordinary rubber materials, and it is problematic to use only fluororubber as a material for hoses and the like in terms of cost. In addition, acrylonitrile-butadiene copolymer rubber conventionally used as a hose for fuel delivery is inferior to fluororubber in various properties such as heat resistance, oil resistance, and aging resistanc...

Claims

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Application Information

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IPC IPC(8): B32B25/08B32B27/30
CPCB32B25/16B32B25/14B32B2250/02B32B2250/24B32B2327/12
Inventor 桑岛祐己大谷充宏增井利昭稻叶刚志
Owner DAIKIN IND LTD