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Styrene-butadiene-styrene block copolymer modified material and preparation method thereof

A styrene block and copolymer modification technology, which is applied in the field of rubber materials, can solve the problems of easy deformation and heat resistance, achieve good low temperature resistance, improve dispersion performance, and increase insulation

Inactive Publication Date: 2017-04-19
GUANGXI TEACHERS EDUCATION UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest disadvantage of SBS is that it is not heat-resistant and easy to deform

Method used

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  • Styrene-butadiene-styrene block copolymer modified material and preparation method thereof
  • Styrene-butadiene-styrene block copolymer modified material and preparation method thereof
  • Styrene-butadiene-styrene block copolymer modified material and preparation method thereof

Examples

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Embodiment

[0037] The experimental methods described in the following examples, unless otherwise specified, are conventional methods; the reagents and materials, unless otherwise specified, can be obtained from commercial sources.

[0038] One, the sample of material described in the present invention and the preparation of comparative sample

[0039] Recipe 1 Recipe 2 Recipe 3 Recipe 4 Recipe 5 Recipe 6 Recipe 7 Recipe 8 Recipe 9 Recipe 10 SBS 70 70 70 70 70 70 70 70 60 80 P.S. 30 30 30 30 30 30 30 30 40 20 MMT 0 1 2 3 4 5 6 7 2 2

[0040] Table 1

[0041] The formula in Table 1 is prepared in proportion. After being mixed evenly by a high-speed mixer, it is extruded by a Nanjing Jieya twin-screw extruder, cooled with water, and then granulated by a pelletizer. The temperature of each section of the extruder barrel is set in turn. Set at 190°C, 190°C, 200°C, 205°C, 205°C, 195°C, head temperature: 190°C, melt...

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Abstract

The invention discloses a styrene-butadiene-styrene block copolymer modified material. The styrene-butadiene-styrene block copolymer modified material comprises 60 to 80 parts of a styrene-butadiene-styrene block copolymer, 20 to 40 parts of polystyrene and 2 to 5 parts of nano montmorillonite. According to the styrene-butadiene-styrene block copolymer modified material, the styrene-butadiene-styrene block copolymer is utilized as a matrix, and lots of advantages like relatively high tensile strength, tear strength and elongation at break, good low temperature resistance and breathability resistance, and unique wet skid resistance and high elasticity of an SBS material are sufficiently exerted; polystyrene is added to modify SBS, the defects that the styrene-butadiene-styrene block copolymer is heat-labile and is liable to deform are overcome, insulativity, mechanical property and processability of the material are improved, and the production cost is increased; and inorganic particles MMT are added to modify the material, so that comprehensive physical properties like dispersing performance, impact resistance, fatigue resistance, dimensional stability and gas barrier property of the material are improved.

Description

technical field [0001] The invention relates to the field of rubber materials, in particular to a styrene-butadiene-styrene block copolymer modified material and a preparation method thereof. [0002] technical background [0003] The production of SBS began in the 1960s. In 1963, Phillips Petroleum Company of the United States produced linear SBS (styrene-butadiene-styrene block copolymer) by coupling method for the first time in 1963. In 1965, Shell Chemical Company of the United States adopted anion ( Secondary butyllithium) polymerization technology realizes the industrial production of SBS for the first time. SBS has four main uses: rubber products, asphalt modifier, adhesive and resin modifier. In terms of rubber products, it is suitable for the manufacture of shoe soles, glass door and window sealing strips, rubber plates, gaskets, rubber hoses and tapes, etc.; as a road asphalt modifier, SBS can significantly improve the weather resistance and load resistance of asph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L25/06C08K3/34B29C47/92B29C48/92
CPCC08L53/02B29C48/92B29C2948/92704C08K2201/011C08L25/06C08K3/346
Inventor 刘钰馨
Owner GUANGXI TEACHERS EDUCATION UNIV
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