High-toughness silica gel strip used for windscreen wipers, and manufacturing method thereof

A technology for silicone strips and wipers, applied in the field of auto parts, can solve the problems of short service life, poor toughness, poor shape and corrosion resistance, and reduced product strength, and achieve long service life, strong corrosion resistance and good softness. Effect

Inactive Publication Date: 2016-10-12
嘉兴奕霞汽配科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing wiper strips are made of rubber, which has poor toughness, shapeability and corrosion resistance, especially the relatively poor softness, which makes the fit between the wiper strip and the glass insufficient, resulting in the inability to scrape the glass clean. Affect the driver's field of vision, bring safety hazards, and cannot meet the needs of the market
The service life of existing rubber wiper strips is relatively short, which is mainly related to rain erosion and direct sunlight, especially the exposure of the sun in summer, and the ultraviolet rays are strong, because the ultraviolet wave band is easily absorbed by rubber (the energy of one photon of ultraviolet rays (E = hν) and carbon-carbon covalently close), prompting the rubber carbon-carbon bond to accelerate aging and fracture, showing surface cracks, product strength reduction, hardness enhancement, etc., which in turn makes the rubber wiper strip unusable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Silicone strips for high tenacity wipers, composed of 60% silica gel, 12% white carbon black, 6% silicone oil, 5% polytetrafluoroethylene, 5% diisooctyl phthalate, 3% Diisooctyl adipate, 3% tributyl (1-ethoxyethylene) tin, 3% carbon black, 3% dicumyl peroxide.

[0016] A method for manufacturing a silicone strip for a high-toughness windshield wiper, comprising the following steps:

[0017] Step 1: Mixing raw materials: Stir silica gel, white carbon black, silicone oil, polytetrafluoroethylene, diisooctyl phthalate, carbon black, and dicumyl peroxide evenly, then continue stirring, adding Diisooctyl adipate, then add tributyl (1-ethoxyethylene) tin, stir evenly to form a silica gel strip blank;

[0018] Step 2: extruding the silica gel strip blank in step 1;

[0019] Step 3: Put the silica gel strip blank extruded in step 2 into a drying box, dry and shape at a high temperature of 500-600 degrees, and the product is finished.

[0020] The use of silica gel makes the ...

Embodiment 2

[0022] Silicone strips for high tenacity wipers, composed of 65% silica gel, 10% white carbon black, 5% silicone oil, 6% polytetrafluoroethylene, 6% diisooctyl phthalate, 2% Diisooctyl adipate, 3% tributyl (1-ethoxyethylene) tin, 1% carbon black, 2% dicumyl peroxide.

[0023] Compared with Example 1, the amount of silica gel is increased, the softness is increased, and the glass is easier to scrape clean.

Embodiment 3

[0025] High-toughness silicone strip for wiper, said high-toughness silicone strip is composed of 70% silica gel, 8% white carbon black, 4% silicone oil, 5% polytetrafluoroethylene, 5% phthalate Diisooctyl formate, 2% diisooctyl adipate, 2% tributyl (1-ethoxyethylene) tin, 2% carbon black, 2% dicumyl peroxide.

[0026] Compared with the above two embodiments, the amount of silica gel is the largest and the softness is the best.

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PUM

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Abstract

The invention provides a high-toughness wiper silicone strip, which consists of 60-70% silica gel, 8-12% white carbon black, 4-6% silicone oil, 5-8% polytetrafluoroethylene, 5-10 % di-isooctyl phthalate, 2-3% di-isooctyl adipate, 2-3% tributyl(1-ethoxyethylene) tin, 1-3% carbon black, Composed of 2‑3% dicumyl peroxide; also provide a manufacturing method for high-toughness wiper silicone strips, the manufactured silica gel strips have good toughness, strong corrosion resistance, good softness, and can effectively scrape the glass clean. And it is not easy to age and has a long service life.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to a silicone strip for a high-toughness windshield wiper and a manufacturing method thereof. Background technique [0002] Wipers are widely used on the glass of automobiles, trains, trams and other vehicles, and some construction machinery such as cranes are also equipped with wipers, and the most important thing in wipers is wiper strips. Since the wiper strip is in direct contact with the glass, this requires the wiper strip to have good toughness, shapeability and corrosion resistance, so the production of the wiper strip is extremely important. Most of the existing wiper strips are made of rubber, which has poor toughness, shapeability and corrosion resistance, especially the relatively poor softness, which makes the fit between the wiper strip and the glass insufficient, resulting in the inability to scrape the glass clean. It affects the driver's field of vision, brings potential ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L27/18C08K13/02C08K3/36C08K5/12C08K5/11C08K3/04
CPCC08L83/04C08L2205/025C08L2205/03C08L27/18C08K13/02C08K3/36C08K5/12C08K5/11C08K3/04
Inventor 陆耀明
Owner 嘉兴奕霞汽配科技有限公司
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