Outer layer glue of carbon dioxide refrigerant air conditioner rubber hose

A technology of carbon dioxide and refrigerant, which is applied in the field of outer layer adhesive to achieve the effects of improving adhesion, improving penetration resistance, and preventing penetration and leakage

Active Publication Date: 2011-01-19
江苏鹏翎胶管有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, now facing new changes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 70 parts of low ethylene EPDM rubber,

[0037] 30 parts of high ethylene EPDM rubber,

[0038] 4 parts neoprene,

[0039] Extrude 70 parts of carbon black (N550) quickly,

[0040] 20 parts paraffin oil,

[0041] 1 part polyethylene glycol,

[0042] Triallyl cyanurate 0.5 parts,

[0043] 1,3-bis(tert-butylperoxydiisopropyl)benzene 3.0 parts,

[0044]Maleated 1,2 polybutadiene resin (adhesive PN) 8 parts.

Embodiment 2

[0046] 80 parts of low ethylene EPDM rubber,

[0047] 20 parts of high ethylene EPDM rubber,

[0048] Neoprene 6 parts,

[0049] Extrude 80 parts of carbon black (N550) quickly,

[0050] 30 parts paraffin oil,

[0051] 2 parts polyethylene glycol,

[0052] 0.75 parts of triallyl cyanurate,

[0053] 1,3-bis(tert-butylperoxydiisopropyl)benzene 4.0 parts,

[0054] Maleated 1,2 polybutadiene resin (adhesive PN) 10 parts.

Embodiment 3

[0056] 90 parts of low ethylene EPDM rubber,

[0057] 10 parts of high ethylene EPDM rubber,

[0058] Neoprene 8 parts,

[0059] Extrude 90 parts of carbon black (N550) quickly,

[0060] 40 parts paraffin oil,

[0061] 3 parts of polyethylene glycol,

[0062] 1 part triallyl cyanurate,

[0063] 5.0 parts of 1,3-bis(tert-butylperoxydiisopropyl)benzene,

[0064] Maleated 1,2 polybutadiene resin (adhesive PN) 12 parts.

[0065] Adopt the outer glue of above-mentioned embodiment, prepare rubber hose

[0066] 1. Rubber mixing: Prepare middle layer rubber (CIIR) and outer layer rubber (EPDM) mixed rubber respectively.

[0067] 2. Extrusion:

[0068] ①Single-screw nylon T-type extruder with a mandrel to extrude the inner permeable layer;

[0069] ②Single-screw T-type extruder extrudes the middle rubber layer;

[0070] ③Woven fabric reinforcement layer, using polyaramid fiber thread;

[0071] ④Single-screw T-type extruder to extrude the outer layer of rubber;

[0072] ⑤Sin...

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PUM

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Abstract

The invention relates to an outer layer glue of a carbon dioxide refrigerant air conditioner rubber hose. The outer layer glue comprises the following components in parts by mass: 70-90 parts of low ethylene propylene terpolymer, 10-30 parts of high ethylene propylene terpolymer, 4-8 parts of chloroprene rubber, 70-90 parts of fast extruding carbon black, 20-40 parts of paraffin oil, 1-3 parts of polyethylene glycol, 0.5-1 parts of triallyl cyanurate, 3.0-5.0 parts of 1,3-di(tert-butyl peroxide diisopropyl)benzene and 8-12 parts of adhesive PN. Compared with the traditional industry level, the outer layer glue has remarkable effect and the physical characteristics of 75A rigidity, 14.0 MPa tensile-strength and 320% elongation at failure; the adhesive force of the outer layer glue and fabrics reaches 4.0 KN/m; the permeability of the refrigerant CO2 reaches 0.79 g/y; and the bursting pressure of the product is 56MPa. The outer layer glue is safe and environmentally-friendly.

Description

technical field [0001] The invention relates to the technical field of rubber hoses, in particular to the outer rubber of carbon dioxide air-conditioning rubber hoses. Background technique [0002] European environmental protection regulations stipulate that after 2008, automobile manufacturers will be equipped with low-emission air-conditioning systems to reduce current hydrofluorocarbon emissions by 90%. Tetrafluoroethane (R134a) has been used in automotive air-conditioning systems. However, now we are facing new changes. European legislation stipulates that by 2011, cars will be equipped with carbon dioxide (CO2) 2 ) Refrigerant air conditioning system. Use CO 2 Refrigerants that reduce hydrofluorocarbon emissions by 99% and make air conditioning systems more efficient. in CO 2 Refrigerant air conditioning systems, changes in conditions and CO 2 The sharp decrease in density will cause explosive decomposition, thereby destroying the polymer material, requiring speci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L11/00C08L47/00C08K13/02C08K3/04C08K5/3492C08K5/14
Inventor 张洪起王学荣
Owner 江苏鹏翎胶管有限公司
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