Nitrile rubber/polylactic acid thermoplastic vulcanizate and preparation method

A technology of thermoplastic vulcanizate and nitrile rubber, which is applied in the field of polylactic acid (PLA)-based thermoplastic vulcanizate and its preparation, can solve the problems of low tear strength, poor elasticity, and the influence of vulcanizate on industrial application, and reduce the dependence on , high elasticity, to achieve the effect of industrialization

Inactive Publication Date: 2014-02-19
张家港市美特高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The Chinese patent with the publication number CN 102827465 A discloses a biodegradable bio-based thermoplastic vulcanizate (TPV). The vulcanizate is prepared by dynamic vulcanization technology, with PLA as the thermoplastic component and a self-made polyester elastomer as the Rubber components, the patent intends to extend the application field of polylactic acid to the range of elastomers, but the prepared thermoplastic vulcanizate has the problems of poor elasticity and low tear strength; and the elastomer components used are experimental It is not an industrial product, which will seriously affect the industrial application of the vulcanizate

Method used

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  • Nitrile rubber/polylactic acid thermoplastic vulcanizate and preparation method
  • Nitrile rubber/polylactic acid thermoplastic vulcanizate and preparation method
  • Nitrile rubber/polylactic acid thermoplastic vulcanizate and preparation method

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Experimental program
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Effect test

Embodiment 1

[0051] First, put 100 parts by weight of NBR into the open mill at room temperature, carry out mastication, add 5.0 parts by weight of ZnO, 1.0 parts by weight of SA and 1.5 parts by weight of anti-aging agent RD after wrapping to prepare the rubber compound; then mix 82 parts by weight of The PLA was melted on an open mill at 150°C, and then put into NBR compound rubber to prepare a rubber-plastic premix; after the rubber-plastic premix was cooled, it was put into an open mill at room temperature, and after being evenly wrapped, 1.0 Weight accelerator DM, and then add 1.5 parts by weight of sulfur, and finally perform dynamic vulcanization on an open mill at 150°C, the dynamic vulcanization time is 8 minutes, and the film is released. Samples were cut and performance tests were performed. The performance tests are shown in Table 1.

Embodiment 2

[0053] The formula components and dosage, process conditions and process flow are the same as in Example 1, except that after the rubber-plastic premix is ​​put into the normal temperature open mill, 1.0 parts by weight of accelerator DM and 0.2 parts by weight of TMTD are added first, and then 1.5 parts by weight of TMTD are added. Sulfur in parts by weight, the performance test is shown in Table 1.

Embodiment 3

[0055] The formula components and dosage, process conditions and process flow are the same as in Example 1, except that after the rubber and plastic premix is ​​put into the normal temperature open mill, first add 1.0 parts by weight of TMTD, 1.0 parts by weight of PX and 0.5 parts by weight of BZ, Then add 1.5 parts by weight of sulfur, the performance test is shown in Table 1.

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Abstract

The invention discloses a nitrile rubber / polylactic acid thermoplastic vulcanizate prepared by a dynamic sulfuration method and a preparation method, the thermoplastic vulcanizate takes nitrile rubber which is one of the general rubbers as an elastomer component, polylactic acid is taken as a thermoplastic resin component; a sulphur sulfuration system is taken as a cross-linking agent, dynamic sulfuration is carried out on a high temperature open mill, thereby nitrile rubber is dispersed in polylactic acid to prepare the thermoplastic vulcanizate. According to the invention, the thermoplastic vulcanizate enables partial biodegradation on the basis of maintenance of high elasticity and thermoplastic performance of the thermoplastic vulcanizate, tensile strength can reach 15MPa, and the fracture percentage elongation can reach as high as 300%. According to the invention, the development and the application of polylactic acid can be developed, and the method has important guidance meaning for preparing the degradable thermoplastic vulcanizate.

Description

【Technical field】 [0001] The invention relates to a polylactic acid (PLA)-based thermoplastic vulcanizate and a preparation method thereof, in particular to a nitrile rubber / polylactic acid blended thermoplastic vulcanizate (NBR / PLA TPV) prepared by dynamic vulcanization technology and a preparation method thereof. It belongs to the field of polymer material blending processing. 【Background technique】 [0002] Today, as environmental issues and sustainable development have attracted much attention, more and more people have begun to pay attention to and study environmentally friendly materials that are derived from nature and are biodegradable. Polylactic acid (PLA) is one of them. The synthetic monomer of PLA is derived from renewable plant resources (such as corn), which has the characteristics of abundant and renewable sources, good biocompatibility and degradability, and can be completely degraded by microorganisms in nature after use, eventually generating carbon dioxid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L9/02C08K13/02C08K3/22C08K5/09B29C35/02
Inventor 段咏欣侯家瑞张严严张建明
Owner 张家港市美特高分子材料有限公司
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