High-temperature-resistant and refrigerant-resistant air conditioner hose

A refrigerant, high and low temperature resistant technology, applied in the field of rubber tubes, can solve the problems of poor bonding performance, poor air tightness, and poor processing performance of the shielding layer, and achieve good high temperature resistance and good effect

Inactive Publication Date: 2015-03-25
QINGDAO SUNSONG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Neoprene rubber is expensive, has poor processability, and poor heat resistance. It is difficult to meet the high temperature requirements of

Method used

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  • High-temperature-resistant and refrigerant-resistant air conditioner hose
  • High-temperature-resistant and refrigerant-resistant air conditioner hose
  • High-temperature-resistant and refrigerant-resistant air conditioner hose

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The high-temperature and refrigerant-resistant air-conditioning hose includes an inner rubber layer, a shielding layer, a middle rubber layer, a braided layer and an outer rubber layer arranged from the inside out. The components and mass parts of the inner rubber layer and the middle rubber layer are:

[0025]

[0026] The middle rubber layer and the inner rubber layer made by the above formula are made into a film for testing and testing. The experimental data are as follows:

[0027]

[0028]

[0029] The performance test of the air-conditioning hose made of the above formula is carried out, and the experimental data are as follows:

[0030]

Embodiment 2

[0032] The high-temperature and refrigerant-resistant air-conditioning hose includes an inner rubber layer, a shielding layer, a middle rubber layer, a braided layer and an outer rubber layer arranged from the inside out. The components and mass parts of the inner rubber layer and the middle rubber layer are:

[0033]

[0034]

[0035] The middle rubber layer and the inner rubber layer made by the above formula are made into a film for testing and testing. The experimental data are as follows:

[0036]

[0037] The performance test of the air-conditioning hose made of the above formula is carried out, and the experimental data are as follows:

[0038]

Embodiment 3

[0040] The high-temperature and refrigerant-resistant air-conditioning hose includes an inner rubber layer, a shielding layer, a middle rubber layer, a braided layer and an outer rubber layer arranged from the inside out. The components and mass parts of the inner rubber layer and the middle rubber layer are:

[0041]

[0042] The middle rubber layer and the inner rubber layer made by the above formula are made into a film for testing and testing. The experimental data are as follows:

[0043]

[0044] The performance test of the air-conditioning hose made of the above formula is carried out, and the experimental data are as follows:

[0045]

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PUM

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Abstract

A high-temperature-resistant and refrigerant-resistant air conditioner hose comprises an inner rubber layer, a shielding layer, a middle rubber layer, a woven layer and an outer rubber layer from inside to outside. The inner rubber layer and the middle rubber layer are formed by chlorinated polyethylene rubber, acid-acceptors DHT-4A, antiagers RD, semi-reinforcing carbon black, lime acetate oil, plasticizers DOP, plasticizers DOA, nano-calcium carbonate, epoxy resin Epikote862, tackifiers Ricobond1756HS, cross-linking agents TAIC and cross-linking agent DCP. The tensile strength of the high-temperature-resistant and refrigerant-resistant air conditioner hose can reach 13.6 MPa, and the elongation at break of the high-temperature-resistant and refrigerant-resistant air conditioner hose can reach 302%. After the high-temperature-resistant and refrigerant-resistant air conditioner hose is aged for 168 h at 135 DEG C, the change of material hardness can reach 2.6, the change rate of the tensile strength is 3.94%, the change rate of the elongation at break is -6.35%, and therefore the high temperature resistance is good. After the high-temperature-resistant and refrigerant-resistant air conditioner hose resists 100 DEG C refrigerant and refrigerant lubricating oil for 72 h, the change of the hardness is -11, the change rate of the tensile strength is -13.7%, the change rate of the elongation at break is -17.8%, and therefore the refrigerant resistance is good.

Description

technical field [0001] The invention relates to a rubber hose, in particular to an air-conditioning hose with high temperature resistance and refrigerant resistance. Background technique [0002] At present, most of the automotive air-conditioning hoses on the market adopt rubber-shielding layer-rubber-reinforced layer-rubber structure (barrier type) and shielding layer-rubber-reinforced layer-rubber structure (veneer type), because the barrier type has an inner rubber layer that can It protects the shielding layer and is easy to assemble, so the market share of barrier air-conditioning pipes is getting higher and higher. [0003] Barrier type air-conditioning pipe is very important for the selection of inner rubber. The inner rubber layer must not only meet the requirements of high temperature resistance, but also must meet the requirements of resistance to refrigerants and freezing lubricating oil, and must also have good adhesion to the shielding layer. [0004] At prese...

Claims

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Application Information

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IPC IPC(8): F16L11/10C08L23/28C08L63/00C08K13/02C08K3/04C08K3/26C08K5/3437C08K5/12
CPCF16L11/10C08K3/04C08K3/26C08K5/12C08K5/3437C08K13/02C08L23/28C08L63/00
Inventor 刘晓丹刘杰李锴朱德华
Owner QINGDAO SUNSONG CO LTD
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