Processing method of styrene butadiene rubber

A processing method and technology of styrene-butadiene rubber, applied in the field of rubber processing, can solve the problems of large roughness of styrene-butadiene rubber, the strength and elongation rate cannot meet the demand, and the production process is complicated, and achieves high tear resistance and compression deformation. The effect of large and optimized internal structure

Inactive Publication Date: 2017-01-18
马弗橡塑(镇江)有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Plastic products such as sealing strips or coils generally use styrene-butadiene rubber as raw materials. The plastics in the prior art are basically made of vulcanized rubber. The elongation cannot meet the demand, and it is often necessary to use auxiliary parts to make up for its strength or tensile defects, resulting in complicated production processes. Therefore, how to develop a styrene-butadiene rubber with a combination of strength and tensile strength has become the subject of this invention. technical issues to be resolved

Method used

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  • Processing method of styrene butadiene rubber

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Effect test

Embodiment 1

[0016] The first processing method for p-styrene-butadiene rubber includes the following processing steps:

[0017] (1) Putting rubber into a pulverizer for pulverization and screening to form particles with a particle diameter of 12-13mm;

[0018] (2) Set the body temperature of the extruder to 62-63°C, the temperature of the machine head to 80°C, and the temperature of the extrusion port to 103°C, add the rubber particles into the extruder, and The heating and melting of the machine head forms a glue solution;

[0019] (3) heating for 5min, adding particle diameter in the extruder is the carbon black of 35mμ;

[0020] (4) After stirring the glue and carbon black for 2-3min, add zinc oxide with a particle size of 123-125mμ, and add calcium carbonate with a particle size of 35-38mμ after mixing;

[0021] (5) Apply paraffin oil at the outlet of the extruder, extrude the glue solution, and form the required styrene-butadiene rubber through cooling and molding.

Embodiment 2

[0023] The second processing method for p-styrene-butadiene rubber includes the following processing steps:

[0024] (1) put rubber into pulverizer and carry out pulverization and screening, form particle diameter and be the particle of 8mm;

[0025] (2) Set the body temperature of the extruder to 53-54°C, the temperature of the machine head to 74°C, and the temperature of the extrusion port to 100°C, add the rubber particles into the extruder, and The heating and melting of the machine head forms a glue solution;

[0026] (3) heating for 7min, adding particle diameter in the extruder is carbon black of 30-32mμ;

[0027] (4) After stirring the glue solution and carbon black for 2 minutes, add zinc oxide with a particle size of 121mμ, and add calcium carbonate with a particle size of 43-45mμ after mixing;

[0028] (5) Apply paraffin oil at the outlet of the extruder, extrude the glue, and form the required styrene-butadiene rubber through cooling and molding.

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Abstract

The invention discloses a processing method of styrene butadiene rubber and relates to the technical field of rubber processing. The processing method comprises the following processing steps: (1) selecting particles with particle size being 5-15 mm; (2) setting body temperature of an extruder to be 50-65 DEG C, head temperature to be 70-80 DEG C and temperature of extrusion port to be 100-110 DEG C; (3) heating for 5-8 min, adding carbon black with particle size being 26-35 millimicrons into the extruder, adding zinc oxide with particle size being 100-500 millimicrons, and adding calcium carbonate with particle size being 25-50 millimicrons; and (5) smearing paraffin oil at an outlet of the extruder, and carrying out extrusion forming. A product formed after processing by the above method has very high tensile strength, meets requirement of wall with tearing strength and can raise rebound resilience and fatigue resistance.

Description

technical field [0001] The invention relates to the technical field of rubber processing, in particular to a technology for processing styrene-butadiene rubber. Background technique [0002] The invention relates to the technical field of rubber processing, in particular to a technology for processing styrene-butadiene rubber. [0003] In the prior art, with the increase of automation equipment, the application fields of sealing strips or coils are becoming more and more abundant, and the requirements for their physical performance indicators are getting higher and higher. [0004] Plastic products such as sealing strips or coils generally use styrene-butadiene rubber as raw materials. The plastics in the prior art are basically made of vulcanized rubber. The elongation cannot meet the demand, and it is often necessary to use auxiliary parts to make up for its strength or tensile defects, resulting in complicated production processes. Therefore, how to develop a styrene-but...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08K3/04C08K3/26C08K3/22B29C47/00B29B13/10
CPCC08K3/04B29B13/10B29C48/022C08K3/22C08K3/26C08K2003/2296C08K2003/265C08L9/06
Inventor 张鹏范正伟戴朝进
Owner 马弗橡塑(镇江)有限公司
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