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Low-odor SEBS elastomer material for vehicles and preparation method thereof

An elastomer material and low-odor technology, which is applied in the field of SEBS elastomer materials for low-odor vehicles and its preparation, can solve the problem of difficult odor, achieve improved processing, expand the contact area, and have obvious effects

Inactive Publication Date: 2020-05-29
东莞市建泓新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] SEBS elastomer material is a polymer material with a wide range of uses in automotive materials. Its mechanical properties can easily meet the requirements of major automotive OEMs, but its odor is often difficult to meet.

Method used

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  • Low-odor SEBS elastomer material for vehicles and preparation method thereof
  • Low-odor SEBS elastomer material for vehicles and preparation method thereof

Examples

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clear, the following will be described in detail in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] Embodiments 1-4 and Comparative Examples 1-6 provide a SEBS elastomer material for low-odor automobiles, which includes the weight percentages of each raw material component as shown in Table 1 below; wherein, SEBS has a weight-average molecular weight of 180,000- 210000 hydrogenated styrene-butadiene block copolymer, the grade is SEBS G1651 of American Kraton Company; the main odor adsorbent is water-containing masterbatch, and the water-containing masterbatch uses foamed polyethylene as the masterbatch carrier, and the moisture content accounts for 60-80wt% of the hydrated masterbatch; the hydrated masterbatch is prepared in the follo...

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Abstract

The invention discloses a low-odor SEBS elastomer material for vehicles and a preparation method thereof. The low-odor SEBS elastomer material comprises the following components in percentage by weight: 60-81 wt% of SEBS, 15-25 wt% of paraffin oil, 1-5 wt% of a main odor adsorbent, 3-10 wt% of an auxiliary odor adsorbent, and 0-10 wt% of an additive. The preparation process comprises the followingsteps: firstly, melting and blending the auxiliary odor adsorbent namely diatomite with SEBS to form a uniformly dispersed phase state structure; and then adding water-containing master batch of themain odor adsorbent. Micromolecular substances that generate odor in SEBS are taken away by water in the master batch; due to the microporous structure of the diatomite, the contact area is greatly enlarged, micromolecular substances can be removed more quickly and effectively, and the odor of the low-odor SEBS elastomer material can be reduced to the minimum and can reach 3.0 level by adjustingthe dosage proportion of the components.

Description

technical field [0001] The invention relates to the technical field of elastomer materials for vehicles, in particular to a SEBS elastomer material for low-odor vehicles and a preparation method thereof. Background technique [0002] SEBS elastomer material is a polymer material with a wide range of uses in automotive materials. Its mechanical properties can easily meet the requirements of major automotive OEMs, but its odor is often difficult to achieve. Taking Volkswagen's material odor standard PV3900 as an example, because the general SEBS elastomer material is mainly a copolymer of styrene materials, benzene and catalyst substances are likely to remain during polymerization, and some additives will be added due to performance requirements during modification. These are the main sources of odor, resulting in odor ratings that often exceed 4 or even 5. [0003] In view of this, it is necessary to study a kind of SEBS elastomer material for vehicles with low odor and a pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L91/06C08L23/06C08K9/02C08K7/26
CPCC08L53/025C08L2205/03C08L2207/04C08L91/06C08L23/06C08K9/02C08K7/26
Inventor 黄伟李德锋
Owner 东莞市建泓新材料科技有限公司