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Laminate body

A laminated body and rubber layer technology, applied in the direction of layered products, rubber layered products, synthetic resin layered products, etc., can solve the problems of increasing the thickness of the barrier layer, usability (unfavorable assembly, unfavorable energy saving, etc.), and achieve softness Improved performance, low cost, and easy molding

Active Publication Date: 2013-08-14
DAIKIN IND LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, increasing the thickness of the barrier layer (fluororesin) will increase the weight of the hose, which is also disadvantageous in terms of energy saving, and it will also be detrimental to the bendability (flexibility) and usability (assembly) of the hose itself. also unfavorable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～8、 comparative example 1～3

[0190] A sheet of the rubber composition for vulcanization shown in Table 2 with a thickness of about 3 mm is overlapped with a fluororesin sheet with a thickness shown in Table 1, and a resin with a width of about 10 to 15 mm is sandwiched between the two sheets at one end. The film (release film with a thickness of 10 μm) was inserted into a mold with a metal separator so that the thickness of the obtained sheet was 2 mm, and pressed at 170° C. for 15 minutes to obtain a sheet-shaped laminate. The obtained laminate was cut into strips of width 10 mm x length 40 mm x 3 sets, and the release film was peeled off to prepare a gripping test piece. Using Autograph (Shimadzu Corporation AGS-J 5kN), according to the method described in JIS-K-6256 (Adhesion test method for cross-linked rubber), at 25°C at a tensile speed of 50mm / min , the peeling test was performed on this test piece, the peeling pattern was observed, and it evaluated by the following reference|standard. The obtaine...

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Abstract

Disclosed is a laminate body provided with a rubber layer (A) and a fluororesin layer (B) laminated on the rubber layer (A). The rubber layer (A) is formed from a rubber composition for vulcanization, and said rubber composition for vulcanization contains (a1) an epichlorohydrin rubber, (a2) at least one compound selected from a group consisting of 1,8-diazabicyclo(5.4.0)undecene-7 and salts thereof, and 1,5-diazabicyclo(4.3.0)-nonene-5 and salts thereof, (a3) an epoxy resin, and (a4) a water bearing substance. The fluororesin layer (B) is formed from a fluoropolymer composition, and said fluoropolymer composition contains (b1) a fluoropolymer having copolymer units derived from chlorotrifluoroethylene.

Description

technical field [0001] The present invention relates to laminated bodies. Background technique [0002] In the past, laws and regulations to prevent fuel volatilization have been promoted along with the improvement of environmental awareness. Especially in the automotive industry, the tendency to suppress fuel volatilization is very strong, mainly in the United States, and the demand for materials with excellent fuel barrier properties is increasing. [0003] Especially in rubber hoses for fuel delivery, laminated hoses using fluororesin as a barrier layer (rubber other than the barrier layer) are used because of their good fuel permeation resistance. layer further reduces fuel permeability. As a means for this, attempts have been made to ensure low permeability by increasing the thickness of the barrier layer or by using a perhalogen-based (Pa-Harogen-based) fluororesin that is most excellent in low-permeability. However, increasing the thickness of the barrier layer (flu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B25/08B32B1/08B32B27/30F16L11/04
CPCB32B25/08B32B27/30B32B27/322B32B1/08F16L11/04F16L2011/047B32B25/14B32B25/16B32B27/08B32B27/18B32B27/26B32B27/28B32B27/304B32B27/38B32B2250/40B32B2264/10B32B2264/104B32B2307/546B32B2307/7242B32B2307/7265B32B2307/732B32B2597/00B32B2307/306B32B2581/00B32B2605/08Y10T428/1386Y10T428/3154
Inventor 增井利昭稻叶刚志桑嶋祐己滨口恒志朗北川纪树
Owner DAIKIN IND LTD
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