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Thermoplastic rubber particles and preparation method thereof

A thermoplastic rubber and particle technology, used in the field of cable materials, can solve the problems of high use cost, high density, and plastic materials that do not have environmental protection effects.

Pending Publication Date: 2021-07-16
剑越高分子材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the field of cables, cable materials are mainly made of plastic materials. However, this material has relatively high density, relatively high cost of use, and poor physical and chemical properties, and plastic materials do not have environmental protection effects.

Method used

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  • Thermoplastic rubber particles and preparation method thereof
  • Thermoplastic rubber particles and preparation method thereof
  • Thermoplastic rubber particles and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0014] According to the recipe listed in Table 1, the preparation steps were used:

[0015] S1. Ingredients: mix TPS-SEBS, white oil, dibutyl ester, calcium powder, stabilizer, and antioxidant according to the corresponding parts;

[0016] S2. Premixing: put the above-mentioned raw materials with configured parts into the ribbon mixer for premixing;

[0017] S3. Pelletizing: put the above-mentioned premixed raw materials into a twin-screw extruder for extruding and hot-cutting into pellets.

[0018] The prepared samples were tested for performance, and the results are shown in Table 1

[0019] Table 1

[0020]

[0021] As can be seen from the results of the examples in Table 1, appropriately increasing the TPS-SEBS content helps to improve the performance of thermoplastic rubber particles, and can reduce the compression set of thermoplastic rubber particles, but with the continuous increase of TPS-SEBS, The compression set performance of thermoplastic rubber particles re...

Embodiment 7-12

[0023] According to the formula listed in Table 2, use the same preparation steps as in Example 1-6

[0024] The prepared samples were tested for performance, and the results are shown in Table 2

[0025] Table 2

[0026]

[0027] As can be seen from the results of the examples in Table 2, properly increasing the white oil content helps to improve the performance of thermoplastic rubber particles, and can reduce the compression set of thermoplastic rubber particles, but with the continuous increase of white oil, thermoplastic rubber The compression set performance of the particles remains basically unchanged, but the processing performance gradually deteriorates, and the processing cost gradually increases. Therefore, the white oil content should not be too high.

Embodiment 12-18

[0029] According to the formula listed in table 3, use the same preparation steps as in Example 1-6

[0030] The prepared samples were tested for performance, and the results are shown in Table 3

[0031] table 3

[0032]

[0033] From the results of the examples in Table 3, it can be seen that appropriately increasing the white oil content helps to improve the performance of thermoplastic rubber particles, and can reduce the compression set of thermoplastic rubber particles, but with the continuous increase of white oil, thermoplastic rubber The compression set performance of the particles begins to rebound, and the hardness also begins to rebound, so that the processing performance gradually deteriorates, and the processing cost gradually increases. Therefore, the white oil content should not be too high or too low.

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Abstract

The invention relates to the technical field of cable materials, in particular to thermoplastic rubber particles and a preparation method thereof. The thermoplastic rubber particles prepared by the invention have the advantages of no toxicity, environmental protection, aging resistance, high and low temperature resistance, oil resistance, water resistance, corrosion resistance of general chemicals, soft texture, high tensile resistance, tensile property and low wear resistance, can be suitable for cables in mobile laying places with rated voltage of 450 / 750V and below, avoids a vulcanization process, and is relative low in the specific gravity.

Description

technical field [0001] The invention relates to the technical field of cable materials, in particular to a thermoplastic rubber particle and a preparation method thereof. Background technique [0002] At present, in the field of cables, plastic materials are mainly used for cable materials. However, this material has relatively high density, relatively high cost of use, and poor physical and chemical properties, and plastic materials do not have environmental protection effects. [0003] Thermoplastic Elastomer (TPS) is a kind of plasticized polymer material that has rubber elasticity at room temperature and can flow at high temperature. Its polymer chain is composed of plastic segment (hard segment) and rubber segment (elastic soft segment) . The plastic segment is reversible, forming a physical "cross-linking point" at room temperature, which acts as a restraint and reinforcement for macromolecular components, and loses its binding force at high temperature, showing plast...

Claims

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Application Information

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IPC IPC(8): C08L53/02C08L91/06C08K3/26C08K5/12C08K13/02
CPCC08L53/025C08K2003/265C08L91/06C08K3/26C08K5/12C08K13/02
Inventor 苏中
Owner 剑越高分子材料科技有限公司
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