Physical foaming ethane-butadiene rubber composite capable of being injected and crosslinked, as well as preparation method, product and processing method thereof

A technology of rubber composition and physical foaming, applied in application, apparel, footwear, etc., can solve the problems of high toxicity of polyurethane monomer, high density of soles, high melt viscosity, etc.

Inactive Publication Date: 2010-06-16
浙江仕峰实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Due to the above defects of SBS foam shoe material, the sole made of SBS has high density and poor wear resistance. Therefore, it has been gradually replaced by other foamable lightweight materials such as EVA and polyurethane (PU) in recent years.
[0007] The tensile strength, tear strength, compression set, wear resistance, and anti-slip properties of EVA foam products currently used are more plastic properties, which cannot fully meet the requirements of the shoe industry.
Although polyurethane has excellent wear resistance, there are also disadvantages in polyurethane foaming materials for shoe soles, suc

Method used

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  • Physical foaming ethane-butadiene rubber composite capable of being injected and crosslinked, as well as preparation method, product and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] According to the following components and content (parts by mass)

[0033] Styrene-butadiene copolymer 50 parts

[0034] Butadiene rubber 10 parts

[0035] Styrene-butadiene-styrene copolymer 5 parts

[0036] Silicon dioxide 14 parts

[0037] 10 parts recycled rubber

[0038] 10 parts naphthenic oil

[0039] Dicumyl peroxide 0.4 parts

[0040] Triallyl isocyanurate 0.3 parts

[0041] Low temperature foaming microspheres 0.3 parts

[0042] First, put the styrene-butadiene copolymer, styrene-butadiene-styrene copolymer, butadiene rubber, silicon dioxide, regenerated rubber, and naphthenic oil in the internal mixer at the same time for internal mixing , mixed for 5 minutes, then added dicumyl peroxide, triallyl isocyanurate, and low-temperature foaming microspheres, mixed for 2 minutes, and the temperature of the internal mixer was 100 ° C. Mix in a mill, and pass through 10 times before the next tablet. Finally, the rubber material is extruded and granulated by an ...

Embodiment 2

[0044] According to the following components and content (parts by mass)

[0045] Styrene-butadiene copolymer 40 parts

[0046] EPDM rubber 10 parts

[0047] Ethylene-vinyl acetate copolymer 15 parts

[0048] Talcum powder 13.5 parts

[0049] Regenerated EVA powder 10 parts

[0050] Machine oil 10 parts

[0051] 0.2 parts of tert-butylcumyl peroxide

[0052] Trimethylolpropane tris(2-methacrylate) 0.3 parts

[0053] Low-temperature foaming microspheres 1 part

[0054] First, put the styrene-butadiene copolymer, ethylene-vinyl acetate copolymer, EPDM rubber, talc powder, recycled EVA powder, and mechanical oil in the internal mixer at the same time for internal mixing, and mix for 5 minutes . Then add tert-butyl cumyl peroxide, trimethylolpropane tri(2-methacrylate) ester, and low-temperature foaming microspheres, mix for 2 minutes, and the temperature of the banbury mixer is 100°C, and the rubber compound after banbury mixing is used Mix in a mill, and pass through 10...

Embodiment 3

[0056] According to the following components and content (parts by mass)

[0057] Styrene-butadiene copolymer 49 parts

[0058] 10 parts nitrile rubber

[0059] Styrene-ethylene-propylene-styrene copolymer 5 parts

[0060] Silicon dioxide 13.5 parts

[0061] 10 parts recycled rubber powder

[0062] Aromatic oil 10 parts

[0063] 0.2 parts of tert-butylcumyl peroxide

[0064] Trimethylolpropane tris(2-methacrylate) 0.3 parts

[0065] Low-temperature foaming microspheres 2 parts

[0066] First, put the styrene-ethylene-propylene-styrene copolymer and aromatic oil in the above ratio into an internal mixer for internal mixing, mix for 3 minutes, then add styrene-butadiene copolymer, nitrile rubber, dioxide Silicone, regenerated rubber powder, mix for 8 minutes, then add tert-butyl cumyl peroxide, trimethylolpropane tri(2-methacrylate) ester, low-temperature foaming microspheres, mix for 2 minutes, internal mixer temperature 100 ℃, mix the rubber materials after banburying ...

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Abstract

The invention relates to a physical foaming ethane-butadiene rubber composite capable of being injected and crosslinked, as well as a preparation method, a product and a processing method thereof. The physical foaming ethane-butadiene rubber composite capable of being injected and crosslinked mainly comprises a styrene-butadiene copolymer, a flow modifier, a softener, a vulcanizer, a vulcanizing accelerator and a physical foaming agent and is prepared by the following steps of: firstly, putting the styrene-butadiene copolymer, the flow modifier and the softener in proportion in a banburying mixer for banburying; secondly, adding the vulcanizer, the vulcanizing accelerator and the physical foaming agent and mixing; thirdly, extruding rubber material by using an extruder for pelleting; and finally, obtaining the foaming product with the density of 0.5-1.0(g/mc3). By the technical scheme, the physical foaming ethane-butadiene rubber composite capable of being injected and crosslinked, as well as the preparation method, the product and the processing method thereof are provided.

Description

technical field [0001] The invention relates to an injectable cross-linkable physically foamed styrene-butadiene rubber composition, a preparation method thereof, a product obtained and a processing method thereof. Background technique [0002] As we all know, styrene / butadiene block copolymer (SBS) is the earliest industrialized styrene monomer-based thermoplastic elastomer. SBS can be used, for example, to make shoe soles, adhesives and elastomers for household use, and to modify bitumen and plastics. The largest application field of SBS is shoe soles, and SBS for shoe soles accounts for more than 50% of the world's SBS consumption. [0003] Lightweight SBS shoe materials have always been the development direction of SBS shoe materials, and foaming is the most effective means of lightweight shoe materials. At present, the lightweight of SBS shoe materials mainly focuses on the chemical foaming of gas generated by the decomposition of chemical foaming agents (such as AC f...

Claims

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Application Information

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IPC IPC(8): C08L9/06C08L9/00C08L53/02C08L17/00C08L23/16C08L23/08C08L31/04C08L9/02C08L23/12C08K13/02C08K3/36C08K3/34C08J9/14B29B9/02B29B7/28B29C47/92B29C45/00B29C44/42A43B13/04
Inventor 张爱民林昌武龚建设梁红文
Owner 浙江仕峰实业有限公司
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