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Automobile air conditioner hose, preparation process thereof and automobile air conditioner hose assembly

A technology for automotive air conditioners and hoses, applied in the direction of hoses, pipes/pipe joints/fittings, pipes, etc., can solve the problems of no air-conditioning hose refrigerant penetration performance research, safety accidents, etc., achieve excellent anti-penetration performance, prevent hollow Collapse, good continuity and consistency effect

Active Publication Date: 2020-04-28
ZHEJIANG JUNHE RUBBER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the technical proposal of this patent application focuses on improving the mechanical properties and high temperature resistance of the inner rubber layer of the air-conditioning pipe, and does not study the refrigerant permeability of the air-conditioning hose
Compared with the non-flammable R134a refrigerant, R1234yf refrigerant is flammable in a certain air concentration. If the R1234yf refrigerant penetrates through the air-conditioning hose to a certain concentration, it is easy to cause serious safety accidents. Therefore, it is urgent to provide a suitable for R1234yf refrigerant low refrigerant penetration car air conditioning hose

Method used

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  • Automobile air conditioner hose, preparation process thereof and automobile air conditioner hose assembly
  • Automobile air conditioner hose, preparation process thereof and automobile air conditioner hose assembly
  • Automobile air conditioner hose, preparation process thereof and automobile air conditioner hose assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] The automobile air-conditioning hose provided in Example 1, the air-conditioning hose is sequentially composed of an inner rubber layer, a nylon shielding layer, a middle rubber layer, a polyester fiber reinforced layer, and an outer rubber layer from the inside to the outside. The automobile air-conditioning hose provided in Embodiment 1 The raw material composition and ratio of the inner rubber layer, middle rubber layer and outer rubber layer of the pipe are shown in Table 2, and the raw material of the nylon shielding layer is 100g of nylon 6.

[0068] The raw material composition and proportioning of table 2 embodiment 1

[0069]

[0070] The preparation method of the automobile air-conditioning hose provided by embodiment 1 comprises the following preparation steps:

[0071] S1, inner rubber layer, middle rubber layer, outer rubber layer rubber mixing:

[0072] S1.1 Preparation of rubber materials for inner rubber layer and middle rubber layer: Add neoprene, p...

Embodiment 2

[0089]The raw material composition and ratio of the inner rubber layer, middle rubber layer and outer rubber layer of the air-conditioning hose provided in Example 2 are shown in Table 3. The raw material of the nylon shielding layer is 100 g of nylon 6, and the preparation method is the same as in Example 1.

[0090] The raw material composition and proportioning of table 3 embodiment 2

[0091]

Embodiment 3

[0093] The raw material composition and ratio of the inner rubber layer, middle rubber layer and outer rubber layer of the air-conditioning hose provided in Example 3 are shown in Table 4. The raw material of the nylon shielding layer is 100 g of nylon 6, and the preparation method is the same as in Example 1.

[0094] The raw material composition and proportioning of table 4 embodiment 3

[0095]

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PUM

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Abstract

The invention discloses an automobile air conditioner hose, a preparation process thereof and an automobile air conditioner hose assembly, and belongs to the field of automobile air conditioner pipelines. The air conditioner hose sequentially comprises an inner rubber layer, a nylon shielding layer, a middle rubber layer, a polyester fiber reinforcing layer and an outer rubber layer from inside tooutside; the inner rubber layer and the middle rubber layer are prepared from the following raw materials of, in parts by weight, 100 parts of chloroprene rubber, 3-10 parts of aromatic hydrocarbon oil, 50-150 parts of carbon black, 2-8 parts of zinc oxide, 2-8 parts of magnesium oxide, 1-3 parts of stearic acid, 5-15 parts of phenolic resin, 0.3-1 part of accelerants, 2-6 parts of anti-aging agents and 0.3-0.5 parts of scorch retarders; the outer rubber layer is prepared from the following raw materials of, in parts by weight, 100 parts of chlorinated butyl rubber, 50-100 parts of carbon black, 2-5 parts of zinc oxide, 0.5-5 parts of magnesium oxide, 1-3 parts of stearic acid and 1-4 parts of accelerants. The provided automobile air conditioner hose has the advantage of low permeabilityof an R1234yf refrigerant, and can stably work for a long time under the condition of -40-135 DEG C.

Description

technical field [0001] The invention relates to the field of automobile air-conditioning pipelines, in particular to an automobile air-conditioning hose, a preparation process thereof, and an automobile air-conditioning hose assembly. Background technique [0002] At present, the refrigerant widely used in automobile air conditioners is R134a refrigerant, and its chemical composition is CH 2 FCF 3 (tetrafluoroethane). Although CH 2 FCF 3 It does not contain Cl and Br in the molecule, and has no damaging effect on the ozone layer, but it is an effective infrared absorber, and because of its stable properties, it can exist in the atmosphere for a long time, making it a very strong greenhouse gas. The parameters to measure the greenhouse effect of gases are usually characterized by global warming potential (GWP). The GWP of R134a refrigerant is 1430, which far exceeds the requirements of the EU emission regulations 2006 / 40 / EC on the GWP of refrigerants used in automotive ai...

Claims

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Application Information

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IPC IPC(8): F16L11/04C08L11/00C08L91/00C08L61/06C08K13/02C08K3/04C08K3/22C08K5/09C08L23/28B32B1/08B32B27/02B32B27/36B32B25/08B32B25/10B32B25/14B32B27/06B32B27/34B32B27/20B32B7/12B32B33/00B29B7/00B29C48/10B29C48/18
CPCB29B7/005B32B1/08B32B5/02B32B7/12B32B25/08B32B25/10B32B25/14B32B27/06B32B27/20B32B27/34B32B2260/021B32B2262/0276B32B2597/00B32B2605/08B29C48/10B29C48/18C08K3/04C08K3/22C08K5/09C08K13/02C08K2003/222C08K2003/2296C08L11/00C08L2203/18C08L2205/03F16L11/04C08L91/00C08L61/06C08L23/283
Inventor 蒋广煜王爱萍李大宇李旭徐庆祝
Owner ZHEJIANG JUNHE RUBBER TECH
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