TPE material and preparation method thereof

A technology of raw materials and cross-linking agents, applied in the field of materials, can solve the problems of demanding material fluidity, etc., and achieve the effects of absorbing unpleasant odors, reducing precipitation, and avoiding exhaust

Inactive Publication Date: 2020-05-01
白圭聚合物(武汉)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] TPE materials have been widely used in the interior and exterior of auto parts, but TPE materials themselves contain a variety of high-temperature volatile substances, and the rubber oil in TPE raw materials emits a coal-burn odor when heated; in addition, TPE materials are used in most of the automotive industry. Applied to large products, so there are strict requirements on material flow

Method used

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  • TPE material and preparation method thereof
  • TPE material and preparation method thereof
  • TPE material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Take by weighing 10kg SEBS, 12kg rubber oil, 10kg polypropylene, 0.1kg bis-tert-butylperoxycumene, 0.1kg triallyl isocyanurate and 0.2kg active carbon and add them into a mixer and stir well to obtain The mixture is put into the extruder and thermally cut into pellets to obtain the TPE material.

[0037] The temperature and rotational speed settings of the extruder are shown in Table 2.

[0038] Table 2: Temperature and rotational speed settings of the extruder in Example 1

[0039]

[0040] In Example 1, every 0.1 kg is one portion.

Embodiment 2

[0045] Take by weighing 12kg SEBS, 13kg rubber oil, 12kg polypropylene, 0.12kg bis-tert-butylperoxycumene, 0.08kg triallyl isocyanurate and 0.15kg active carbon and add in the mixer and stir well to obtain The mixture is put into the extruder and thermally cut into pellets to obtain the TPE material.

[0046] The temperature and rotational speed settings of the extruder are shown in Table 3.

[0047] Table 3: Temperature and rotational speed settings of the extruder in Example 2

[0048]

[0049] In Example 2, every 0.1 kg is one portion.

Embodiment 3

[0051] Weigh 14.5kg SEBS, 15kg rubber oil, 14kg polypropylene, 0.13kg bis-tert-butylperoxycumene, 0.14kg triallyl isocyanurate and 0.25kg activated carbon and add them into the mixer and stir them evenly. The mixture is obtained, and the mixture is put into an extruder and thermally cut into pellets to obtain a TPE material.

[0052] The temperature and rotational speed settings of the extruder are shown in Table 4.

[0053] Table 4: Temperature and rotational speed settings of the extruder in Example 3

[0054]

[0055] In embodiment 3, every 0.1kg is one portion.

[0056] The properties of the TPE materials prepared in Examples 1-3 are shown in Table 5.

[0057] Table 5: Properties of TPE materials prepared in Example 1-Example 3

[0058] performance Example 1 Example 2 Example 3 Hardness shoreA 40 40 40 100% body strength MPa 1.5 1.8 1.6 200% body strength MPa 2.6 3.0 2.8 Tensile strength MPa 11.5 12 12.5 Permanent ...

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Abstract

The invention provides a TPE material. The TPE material is prepared from the following raw materials in parts by mass: 80-150 parts of SEBS, 100-160 parts of rubber oil, 80-150 parts of polypropylene,0.5-1.5 parts of a cross-linking agent, 0.5-1.5 parts of a nucleating agent and 1-3 parts of activated carbon. The invention also provides a preparation method of the TPE material. By adding the nucleating agent, microcrystalline structure polypropylene can be generated, the crystallization temperature of the material is increased, and the exhaust problem in the injection molding process is avoided; bis(tert-butylperoxy isopropyl)benzene, triallyl isocyanurate and SEBS are subjected to chemical crosslinking, so that precipitation of rubber oil can be effectively reduced; and by adding the activated carbon, unpleasant odor can be effectively adsorbed.

Description

technical field [0001] The invention relates to the field of material technology, in particular to a TPE material and a preparation method thereof. Background technique [0002] TPE materials have been widely used in the interior and exterior of auto parts, but TPE materials themselves contain a variety of high-temperature volatile substances, and the rubber oil in TPE raw materials emits a coal-burn odor when heated; in addition, TPE materials are used in most of the automotive industry. Applied to large products, so there are strict requirements on material flow. Contents of the invention [0003] In view of this, the present invention provides a TPE material with high flow, low odor and low VOC. [0004] The invention provides a TPE material, which is composed of the following raw materials in parts by mass: 80-150 parts of SEBS, 100-160 parts of rubber oil, 80-150 parts of polypropylene, 0.5-1.5 parts of crosslinking agent, and 0.5-1.5 parts of nucleating agent 1 to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L21/00C08L53/02C08L23/12C08K13/04C08K7/24C08K5/14C08K5/3492
CPCC08L21/00C08L2205/03C08L2205/24C08L2312/00C08L53/025C08L23/12C08K13/04C08K7/24C08K5/14C08K5/34924
Inventor 秦晓东
Owner 白圭聚合物(武汉)有限公司
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