Hollow inflation-free plastic foaming wheel

An air-free and plastic-free technology, applied in the field of tires, can solve the problems of no resilience, no rubber texture, poor performance and wear resistance, etc., and achieve the effects of improved skid resistance, strong sense of weight and extended service life

Inactive Publication Date: 2015-11-18
JIANGXI GUOSU IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to its light material and poor intermolecular structural force, this kind of tire not only has light weight, no rubber texture, poor elasticity and no resilience, but more importantly, its performance has poor wear resistance, large wear, and small load capacity. , poor skid resistance, short product life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] In the first step, put 36 parts of styrene butadiene (SBS) and 20 parts of rubber softening oil into a mixer at 90°C for about 10 hours and mix them for about 10 hours, so that the rubber softening oil is filled and immersed in styrene butadiene, and then put Add 15 parts of calcium carbonate and 20 parts of polyethylene and continue to stir. After stirring evenly, extrude and granulate with a twin-screw extruder; After mixing and stirring in the mixer evenly, add 3 parts of AC foaming agent and 1.5 parts of dicumyl peroxide and stir again, and then put the mixture into the extruder for low-temperature extrusion granulation; the third step is to mix the rubber particles Use an injection molding machine to inject it into a wheel blank at low temperature; the fourth step is to put the wheel blank in the third step into the wheel mold cavity of the foaming machine for high temperature foaming, and the temperature is generally required to be around 240 ° C; the fifth step is...

Embodiment 2

[0015] The process steps are the same as in Example 1, the difference is that the compositions are different in weight, and the parts by weight of the compositions are: 40 parts of styrene butadiene (SBS); 25 parts of rubber softening oil; 20 parts of calcium carbonate 25 parts of polyethylene (PE); 60 parts of ethylene-vinyl acetate (EVA); 4 parts of AC blowing agent; 2 parts of dicumyl peroxide (DCP) bridging agent.

Embodiment 3

[0017] The process steps are the same as in Example 1, the difference is that the compositions are different in weight, and the parts by weight of the compositions are: 55 parts of ethylene-vinyl acetate (EVA); 35 parts of styrene-butadiene (SBS) 15 parts of rubber softening oil; 10 parts of calcium carbonate; 15 parts of polyethylene (PE); 2 parts of AC foaming agent; 1 part of bridging agent of dicumyl peroxide (DCP).

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PUM

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Abstract

The invention discloses a hollow inflation-free plastic foaming wheel which is formed by carrying out low-temperature pelletizing on a composition, carrying out low-temperature injection-molding on the composition by use of an injection molding machine to form wheel blank, and putting the wheel blank into a mould to carry out high-temperature foaming, wherein the composition comprises the following components in parts by weight: 55-60 parts of ethylene-vinyl acetate (EVA), 20-30 parts of styrene-butadiene (SBS), 15-25 parts of rubber softening oil, 10-20 parts of calcium carbonate, 15-25 parts of polyethylene (PE), 2-4 parts of an AC foaming agent, and 1-2 parts of dicumyl peroxide (DCP). The hollow inflation-free plastic foaming wheel has the advantages that the weight is relatively great, the sense of weight is strong, and the visual sense has sense of rubber; and more importantly, on usability, the wear resistance can be improved by 2.5 times, the carrying capacity can be improved by 3-4 times, the skid resistance is greatly improved, and the service life can be prolonged by more than three times.

Description

technical field [0001] The invention relates to a tire, in particular to a plastic foam wheel, specifically a hollow air-free plastic foam wheel. Background technique [0002] Hollow non-inflatable plastic foam wheels are mainly used for driving rollers such as mobile small generators, lawnmowers, children's cars, and small trailers. The existing commonly used hollow non-inflatable plastic foaming wheels mainly use ethylene-vinyl acetate (EVA) as the main raw material, add a foaming agent, carry out low-temperature granulation, and then use an injection molding machine to inject it into a wheel blank at low temperature. It is made by high temperature foaming in the mold. Due to its light material and poor intermolecular structural force, this kind of tire not only has light weight, no rubber texture, poor elasticity and no resilience, but more importantly, its performance has poor wear resistance, large wear, and small load capacity. , poor skid resistance, short product...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L53/02C08L23/06C08K3/26C08K5/14C08J9/10
CPCC08L23/0853C08J9/0061C08J9/103C08J2203/04C08J2323/08C08J2423/06C08J2453/02C08L2203/14C08L2205/03C08L53/02C08L23/06C08K2003/265C08K5/14
Inventor 张凯
Owner JIANGXI GUOSU IND CO LTD
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