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Environment-friendly sealing sponge for automobile air conditioner and preparation method thereof

An automotive air-conditioning and environmental protection technology, applied in the field of air-conditioning sealing sponge, can solve the problems of unfavorable environmental protection and sustainable development, high stability of polyurethane, no degradability, etc., and achieves small permanent deformation, high tensile strength, and improved Effects of strength and elasticity

Inactive Publication Date: 2017-09-22
SHENZHEN WOHAISEN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyether polyols are used as raw materials in the production and preparation of polyurethane sponges. However, petroleum-based polyether polyols are usually used in the production and preparation of polyurethane sponges. The polyurethane produced has high stability and is difficult to decompose in a natural state; It is not degradable, which is not conducive to environmental protection and sustainable development. With the expansion of the application field of sponge products, the market needs a large amount of sponge supply, resulting in serious environmental burdens, but there are many performance defects in other existing air-conditioning sealing sponges.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The environmental protection sealing sponge for automobile air conditioner is made of the following raw materials in parts by weight: 90 parts of Keltan Eco 6950, 12 parts of polylactic acid fiber, 35 parts of carbon black, 1 part of stearic acid, 1 part of zinc oxide, 35 parts of kaolin, heavy 30 parts of calcium carbonate, 2 parts of cashew nut shell liquid, 1.2 parts of foaming agent AC, 1.6 parts of foaming agent OBSH, 1.5 parts of accelerator PZ, 1.2 parts of accelerator NS, 3 parts of PEG4000, 1.5 parts of silane coupling agent, 2 parts of sulfur parts, DCP 1.5 parts, zinc stearate 1.5 parts.

[0018] The preparation method of environmental protection sealing sponge for automobile air conditioner, the steps are as follows:

[0019] 1) Put the bio-based EPDM raw rubber into the mixer for 8 minutes, add carbon black, stearic acid, zinc oxide, kaolin, heavy calcium carbonate, cashew nut shell oil, silane coupling agent, stabilizer, PEG4000, Mix for 5 minutes, then a...

Embodiment 2

[0023] The environmental protection sealing sponge for automobile air conditioner is made of the following raw materials in parts by weight: 92 parts of bio-based EPDM, 14 parts of polylactic acid fiber, 32 parts of carbon black, 1.5 parts of stearic acid, 1.5 parts of zinc oxide, 37 parts of kaolin, heavy 28 parts of calcium carbonate, 2.5 parts of cashew nut shell liquid, 1.5 parts of foaming agent AC, 1.5 parts of foaming agent OBSH, 1.5 parts of accelerator PZ, 1.5 parts of accelerator NS, 3 parts of PEG4000, 1 part of silane coupling agent, 2.5 parts of sulfur 1 part, 1 part of DCP, 1 part of glyceryl distearate.

[0024] The preparation method of environmental protection sealing sponge for automobile air conditioner, the steps are as follows:

[0025] 1) Put the bio-based EPDM raw rubber into the mixer for 10 minutes, add carbon black, stearic acid, zinc oxide, kaolin, heavy calcium carbonate, cashew nut shell oil, silane coupling agent, stabilizer, PEG4000, Mix for 7 m...

Embodiment 3

[0029] Environmentally friendly sealing sponge for automobile air conditioner, made of the following raw materials in parts by weight: 87 parts of Keltan Eco 6950, 11 parts of polylactic acid fiber, 35 parts of carbon black, 1 part of stearic acid, 1 part of zinc oxide, 32 parts of kaolin, heavy 32 parts of calcium carbonate, 3 parts of cashew nut shell liquid, 1.5 parts of foaming agent AC, 1 part of foaming agent OBSH, 1 part of accelerator PZ, 1.5 parts of accelerator NS, 2 parts of PEG4000, 1.5 parts of silane coupling agent, 2 parts of sulfur 1 part, DCP 1 part, calcium stearate 1 part.

[0030] The preparation method of environmental protection sealing sponge for automobile air conditioner, the steps are as follows:

[0031] 1) Put the bio-based EPDM raw rubber into the mixer for 10 minutes, add carbon black, stearic acid, zinc oxide, kaolin, heavy calcium carbonate, cashew nut shell oil, silane coupling agent, stabilizer, PEG4000, Mix for 5 minutes, then add accelerato...

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PUM

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Abstract

The invention discloses environment-friendly sealing sponge for an automobile air conditioner and a preparation method thereof, and relates to the technical field of air conditioner sealing sponge. The environment-friendly sealing sponge for the automobile air conditioner is prepared from the following raw materials in parts by weight: 80-95 parts of bio-based EPDM, 10-15 parts of polylactic acid fiber, 30-40 parts of carbon black, 1-2 parts of stearic acid, 1-2 parts of zinc oxide, 30-40 parts of kaolin, 25-35 parts of heavy calcium carbonate, 1-3 parts of cashew nut shell oil, 1-2 parts of a foaming agent AC, 1-2 parts of a foaming agent OBSH, 1-2 parts of an accelerant PZ, 1-2 parts of an accelerant NS, 2-4 parts of PEG4000, 1-2 parts of a silane coupling agent, 2-3 parts of sulphur, 1-2 parts of DCP and 1-2 parts of a stabilizer. The environment-friendly sealing sponge for the automobile air conditioner uses the bio-based EPDM as a raw material, so that dependence on a petroleum resource is reduced and the environment-friendly sealing sponge is environment-friendly and renewable; the added biodegradable polylactic acid fiber can further improve the strength and the elasticity of the material; through a reasonable matching ratio of the components, the prepared material is better in performance, high in tensile strength, low in volume weight and small in permanent deformation, and a requirement on the sealing performance of the automobile air conditioner can be met better.

Description

technical field [0001] The invention relates to the technical field of air conditioner sealing sponges, in particular to an environmentally friendly sealing sponge for automobile air conditioners and a preparation method thereof. Background technique [0002] Air-conditioning sealing sponge is an indispensable product in the car. It is mainly used for sealing the air-conditioning outlet, the joint between the air outlet and the air duct, the seal at the HVAC, the seal at the joint between the core and the shell, etc., to control the reasonable distribution of air volume. , cushioning, and shockproof functions, the requirements for sealing sponges include oil resistance, cold resistance, aging resistance, high strength, and not easily deformed. [0003] Polyurethane is the most common polymer material in life, and it is widely used in the production of various sponge products. Polyether polyols are used as raw materials in the production and preparation of polyurethane spong...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L67/04C08L91/00C08L71/02C08K13/02C08K3/22C08K3/04C08K3/26C08K3/34C08K3/06C08K5/09C08K5/098C08K5/14C08K5/54C08K5/47C08K5/39C08K5/11C08K5/103C08J9/10
CPCC08L23/16C08J9/103C08J9/105C08J2203/04C08J2323/16C08J2467/04C08K2003/2296C08K2003/265C08L2201/06C08L2203/14C08L2205/035C08L2205/16C08L67/04C08L91/00C08L71/02C08K13/02C08K3/22C08K3/04C08K3/26C08K3/346C08K3/06C08K5/09C08K5/098C08K5/14C08K5/54C08K5/47C08K5/39C08K5/11C08K5/103
Inventor 王红胜
Owner SHENZHEN WOHAISEN TECH CO LTD
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