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Glass run rubber plastic sealing material used for automobiles

A technology of sealing materials and glass guide grooves, applied in the rubber field, can solve the problems of general, easy to use effect of agglomeration, poor compatibility and bonding performance, etc., and achieve the effect of improving anti-aging and improving the value system of commodities.

Inactive Publication Date: 2019-06-11
刘辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rubber material is made of raw rubber with high Mooney viscosity and low ethylene content as the main body, adding a large amount of high-structural fillers and high-flash point paraffin oil, and is equipped with a semi-effective vulcanization system of sulfur vulcanization to control the heat shrinkage rate of the sealing strip material Within 1%; the conventional physical properties of the sealing strip meet the performance requirements of the automotive door glass run channel sealing strip for the material, but in this invention, the inorganic components are directly added to the raw materials to enhance the mechanical quality of the material, and there will be inorganic components and Problems such as poor compatibility and bonding between polymers and easy agglomeration lead to mediocre results

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A glass run channel rubber-plastic sealing material for passenger vehicles, which is made of the following components in parts by weight: 80 parts of EPDM rubber, 20 parts of polyvinyl chloride, 14 parts of thermoplastic elastomer, 14 parts of modified filler, accelerator 6 parts, 2 parts of antioxidant, 1 part of zinc oxide; The preparation method of described modified filler is: Put the white carbon black into an ultrafine pulverizer for pulverization, and pulverize for 10 minutes; First put polyvinyl alcohol, ammonia water and ethanol into the reaction kettle according to the weight ratio of 12:0.7:3, stir and mix at a temperature of 70°C, and then put the step Put the white carbon black powder obtained in the reaction kettle into the reaction kettle, and after stirring for 30 minutes at a temperature of 85°C, a white carbon black suspension was obtained; To step Add nano-zinc oxide to the white carbon black suspension obtained in the process, stir and mix, pu...

Embodiment 2

[0046] A glass run channel rubber-plastic sealing material for passenger vehicles, which is made of the following components in parts by weight: 85 parts of EPDM rubber, 25 parts of polyvinyl chloride, 16 parts of thermoplastic elastomer, 17 parts of modified filler, accelerator 7 parts, 2.5 parts of antioxidant, 2.5 parts of zinc oxide; The preparation method of described modified filler is: Put the white carbon black into an ultrafine pulverizer for pulverization, and pulverize for 15 minutes; First put polyvinyl alcohol, ammonia water and ethanol into the reaction kettle according to the weight ratio of 13:0.8:3.5, stir and mix at a temperature of 75°C, and then put the step Put the white carbon black powder obtained in the reaction kettle into the reaction kettle, and after stirring for 35 minutes at a temperature of 90°C, a white carbon black suspension was obtained; To step Add nano-zinc oxide to the white carbon black suspension obtained in the process, stir and ...

Embodiment 3

[0064] A rubber-plastic sealing material for a glass run channel for passenger cars, which is made of the following components in parts by weight: 90 parts of EPDM rubber, 30 parts of polyvinyl chloride, 18 parts of thermoplastic elastomer, 20 parts of modified filler, accelerator 8 parts, 3 parts in antioxidant, 4 parts in zinc oxide; The preparation method of described modified filler is: Put the white carbon black into an ultrafine pulverizer for pulverization, and pulverize for 20 minutes; First put polyvinyl alcohol, ammonia water and ethanol into the reaction kettle according to the weight ratio of 14:0.9:4, stir and mix at a temperature of 80°C, and then put the step Put the white carbon black powder obtained in the reaction kettle into the reaction kettle, and after stirring for 40 minutes at a temperature of 95°C, a white carbon black suspension was obtained; To step Add nano-zinc oxide to the white carbon black suspension obtained in the process, stir and mix,...

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PUM

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Abstract

The invention discloses a glass run rubber plastic sealing material used for automobiles. The sealing material is prepared from the following components: ethylene-propylene-diene monomer, polyvinyl chloride, a thermoplastic elastomer, a modified filler, an accelerant, an antioxidant and zinc oxide. According to the sealing material provided by the invention, the use performance of the glass run rubber plastic sealing material used for the automobiles is comprehensively considered, an inorganic filler is strengthened and modified, so that the aging resistance, high elasticity and low-temperature resistance of the glass run sealing material are effectively improved; and the sealing material has market promotion and application value, and the commodity value system of the rubber sealing material is improved.

Description

technical field [0001] The invention belongs to the technical field of rubber, and in particular relates to a rubber-plastic sealing material for a glass run channel for passenger cars. Background technique [0002] The glass run channel sealing strip is one of the main components of the car door glass lifting system. As the guiding part of the door glass lifting, it has many functions such as guiding, sealing, waterproof, dustproof and noise reduction. Because the sealing strip is affected by the climate Exposure to sunlight will cause shrinkage, aging, deformation and other phenomena. [0003] "Automobile door glass run channel sealant compound and its application" (application number 201310153655.8) discloses the automobile door glass run channel sealant compound and its application. The rubber material is made of raw rubber with high Mooney viscosity and low ethylene content as the main body, adding a large amount of high-structural fillers and high-flash point paraffin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L27/06C08L101/00C08K13/06C08K9/04C08K9/00C08K3/36C08K3/22
Inventor 刘辉
Owner 刘辉