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Attapulgite modification based air blower shell of automotive air conditioner and preparation method of air blower shell

A technology of automotive air conditioners and attapulgite rods, which is applied in the field of automotive air conditioner components and can solve problems such as mechanical performance degradation, affecting fan blade performance, and deformation

Inactive Publication Date: 2017-01-11
芜湖德鑫汽车空调有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because there is a large temperature difference between the temperature of the blower shell of the automobile air conditioner during the working process and the temperature after it stops working, under such a large temperature difference, the blower shell of the automobile air conditioner will often be deformed, which will affect the fan. The working performance of the leaf, and its mechanical properties will be greatly reduced

Method used

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preparation example Construction

[0013] The invention provides a method for preparing an automobile air-conditioning blast shell based on attapulgite modification, comprising:

[0014] 1) ball milling starch, silica gel, cyclodextrin, dodecyl ethoxy sulfobetaine, graphene and ornithine to obtain modified starch;

[0015] 2) Calcining attapulgite, graphite, molybdenite and sodium tungstate in the presence of protective gas to obtain a modified composition;

[0016] 3) PC (polycarbonate), PP (polypropylene), PA (polyamide), rosin, hydroxyethyl cellulose, barium sulfate whiskers, titanate, simethicone, diisophthalate The decyl ester, zinc oxide, modified starch and the modified composition are mixed and shaped to prepare the attapulgite-based modified automobile air-conditioning blower casing.

[0017] In step 1) of the present invention, the specific conditions of ball milling can be selected in a wide range, but in order to make the automobile air-conditioning blower shell modified based on attapulgite to hav...

Embodiment 1

[0029] 1) Starch, silica gel, cyclodextrin, dodecyl ethoxy sulfobetaine, graphene and ornithine were ball milled at 120°C for 14 hours according to the weight ratio of 100:27:38:18:8:25 to produce modified starch.

[0030] 2) Mix attapulgite, graphite, molybdenite and sodium tungstate in a weight ratio of 100:29:14:23; and in the presence of nitrogen, heat up from 25°C to 380°C at a rate of 4.5°C / min °C and keep it for 1.5h, then raise the temperature to 580°C at a rate of 0.8°C / min and keep it for 4h to prepare the modified composition.

[0031] 3) PC (weight average molecular weight is 4000), PP (weight average molecular weight is 7000), PA (weight average molecular weight is 6000), rosin, hydroxyethyl cellulose, barium sulfate whisker, titanate, dimethyl Silicone oil, diisodecyl phthalate, zinc oxide, modified starch and modified composition are mixed according to the weight ratio of 100:69:28:17:6:15:10:44:31:24:54:27 , and kneaded at 190°C for 3 hours, and shaped to obt...

Embodiment 2

[0033] 1) Starch, silica gel, cyclodextrin, dodecyl ethoxy sulfobetaine, graphene and ornithine were ball milled at 110°C for 12 hours according to the weight ratio of 100:22:34:14:6:22 to produce modified starch.

[0034] 2) Mix attapulgite, graphite, molybdenite and sodium tungstate in a weight ratio of 100:24:10:20; and in the presence of helium, heat up from 15°C to 350°C and keep it for 1h, then raise the temperature to 550°C at a rate of 0.6°C / min and keep it for 3h to prepare the modified composition.

[0035] 3) PC (weight average molecular weight is 2000), PP (weight average molecular weight is 6000), PA (weight average molecular weight is 4000), rosin, hydroxyethyl cellulose, barium sulfate whisker, titanate, dimethyl Silicone oil, diisodecyl phthalate, zinc oxide, modified starch and the modified composition are mixed according to the weight ratio of 100:66:22:15:5:11:9:33:28:20:50:25 , and kneaded at 185°C for 2 hours, and shaped to obtain the attapulgite-based a...

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Abstract

The invention discloses an attapulgite modification based air blower shell of an automotive air conditioner and a preparation method of the air blower shell. The preparation method comprises the steps: (1) carrying out ball-milling on starch, silica gel, cyclodextrin, dodecyl ethoxy sulfobetaine, graphene and ornithine, so as to prepare modified starch; (2) carrying out calcination on attapulgite, graphite, molybdenite and sodium tungstate in the presence of shielding gas, so as to prepare a modified composition; (3) carrying out mixing on PC, PP, PA, rosin, hydroxyethyl cellulose, barium sulfate whiskers, titanate, simethicone, diisodecyl phthalate, zinc oxide, the modified starch and the modified composition, and carrying out molding, thereby preparing the attapulgite modification based air blower shell of the automotive air conditioner. The attapulgite modification based air blower shell of the automotive air conditioner, prepared by the method, has excellent weather resistance and mechanical properties; meanwhile, the preparation method has the advantages that the steps are simple, and the raw materials are readily available.

Description

technical field [0001] The invention relates to automobile air-conditioning components, in particular to an attapulgite-based modified automobile air-conditioning blast shell and a preparation method thereof. Background technique [0002] The car air conditioner blower shell is an important part of the car air conditioner blower. The car air conditioner blower mainly plays the role of blowing hot or cold air to play the role of gas circulation, and the car air conditioner blower shell plays the role of protecting the car air conditioner. The internal parts of the blower also play the role of forming the air duct. [0003] At present, the blower shell of the automobile air conditioner is generally made of polymer materials. Because there is a large temperature difference between the temperature of the blower shell of the automobile air conditioner during the working process and the temperature after it stops working, under such a large temperature difference, the blower shel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L23/12C08L77/00C08L93/04C08L3/02C08K13/06C08K9/00C08K3/34C08K3/04C08K3/36C08K5/17
CPCC08K2201/014C08L69/00C08L2205/035C08L23/12C08L77/00C08L93/04C08L3/02C08K13/06C08K9/00C08K3/346C08K3/04C08K3/36C08K5/175
Inventor 李茂勇陈天祥
Owner 芜湖德鑫汽车空调有限公司
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