Automobile steering gear bellows dust shield material

A technology of automobile steering gear and bellows, which is applied in the field of automotive steering gear bellows dust cover materials, to achieve excellent light resistance, enhanced mechanical properties, and good mechanical properties

Inactive Publication Date: 2017-02-08
NINGGUO HUASHENG PLASTIC PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid development of the automobile industry, the current bellows dust cover material is increasingly unable to meet the demand, and its tensile strength, elongation at break, insulation and aging resistance need to be improved urgently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A kind of automobile steering gear bellows dustproof cover material that the present invention proposes, its raw material comprises by weight: 20 parts of high-density polyethylene, 5 parts of dimethylaminopropylamine, 5 parts of modified natural wood fibers, 4 parts of kapok fibers, 1 part of nano-silica, 25 parts of clay, 1 part of diisononyl phthalate, 2 parts of phosphite, 1 part of masterbatch, 3 parts of lubricant, 0.5 part of antioxidant, 2 parts of antistatic agent .

Embodiment 2

[0016] A kind of automobile steering gear bellows dustproof cover material that the present invention proposes, its raw material comprises by weight: 50 parts of high-density polyethylene, 1 part of dimethylaminopropylamine, 15 parts of modified natural wood fibers, 2 parts of kapok fibers, 5 parts of nano-silica, 15 parts of clay, 4 parts of diisononyl phthalate, 1 part of phosphite, 2 parts of masterbatch, 1 part of lubricant, 1.5 parts of antioxidant, 1 part of antistatic agent .

[0017] The modified natural wood fiber is prepared by the following process: mixing and stirring sodium dodecylbenzenesulfonate, anionic polyacrylamide, and absolute ethanol evenly to obtain the first prefabricated material; after mixing vermiculite and water, ultrasonic treatment obtains pretreatment Vermiculite; dissolving lecithin in absolute ethanol, adding pretreated vermiculite, adjusting the pH of the system to 4.5-5.2, stirring, centrifuging, washing, and drying to obtain the second prefa...

Embodiment 3

[0019] A kind of automobile steering gear bellows dustproof cover material that the present invention proposes, its raw material comprises by weight: 30 parts of high-density polyethylene, 4 parts of dimethylaminopropylamine, 8 parts of modified natural wood fibers, 3.5 parts of kapok fibers, 2 parts of nano-silica, 22 parts of clay, 2 parts of diisononyl phthalate, 1.8 parts of phosphite, 1.5 parts of masterbatch, 2.5 parts of lubricant, 0.8 parts of antioxidant, 1.6 parts of antistatic agent .

[0020] The modified natural wood fiber is prepared by the following process: mixing and stirring sodium dodecylbenzenesulfonate, anionic polyacrylamide, and absolute ethanol evenly to obtain the first prefabricated material; mixing vermiculite and water, and ultrasonically treating it for 100 minutes to obtain Pretreat vermiculite: dissolve lecithin in absolute ethanol, add pretreated vermiculite, adjust the pH value of the system to 4.5-5.2, stir at 70°C for 30 hours, centrifuge, an...

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PUM

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Abstract

The invention discloses an automobile steering gear bellows dust shield material, raw materials of which comprise (by weight): 20-50 parts of high density polyethylene, 1-5 parts of dimethylamino propylanmine, 5-15 parts of modified natural wood fiber, 2-4 parts of kapok fiber, 1-5 parts of nano-silica, 15-25 parts of clay, 1-4 parts of diisononyl phthalate, 1-2 parts of phosphate, 1-2 parts of color master batch, 1-3 parts of a lubricant, 0.5-1.5 parts of an antioxidant and 1-2 parts of an antistatic agent. The automobile steering gear bellows dust shield material has excellent tensile strength, high elongation at break and excellent insulating property and aging resistance.

Description

technical field [0001] The invention relates to the technical field of dust cover materials, in particular to a material for an automobile steering gear bellows dust cover. Background technique [0002] The current steering system for automobiles generally adopts the form of arranging the steering gear in the engine compartment, and connecting the steering wheel with the steering wheel in the cockpit through the steering drive shaft through the engine compartment. In order to meet the requirements of appearance and NVH performance in the cockpit, generally The part where the steering shaft passes through the hole of the vehicle body floor is provided with a steering shaft dust cover to block the gap left by the steering column passing through the engine compartment and the cockpit, preventing the dust and muddy water raised from the bottom of the vehicle from entering the cockpit, and preventing Noise from the engine compartment is transmitted to the cockpit. With the rapid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L97/02C08L1/02C08K13/02C08K5/17C08K3/36C08K3/34C08K5/12C08K5/524
CPCC08L23/06C08K2201/011C08L2201/08C08L2205/03C08L2205/16C08L2207/062C08L97/02C08L1/02C08K13/02C08K5/17C08K3/36C08K3/346C08K5/12C08K5/524
Inventor 叶庭俞奇渊张庆文谢治军周梦
Owner NINGGUO HUASHENG PLASTIC PROD
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