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Silicone rubber/polylactic acid thermoplastic vulcanized rubber and preparation method thereof

A thermoplastic vulcanizate and silicone rubber technology, applied in the field of silicone rubber/polylactic acid thermoplastic vulcanizate, can solve the problems of macroscopic phase separation, poor compatibility, difficult blending, etc. Effect

Active Publication Date: 2016-10-12
青岛新鸿泰元科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the solubility parameter of silicone rubber (21J 1 / 2 cm -3 / 2 ) and polylactic acid solubility parameters (15.7J 1 / 2 cm -3 / 2 ) is too different, the compatibility of the two polymers is poor, it is prone to macroscopic phase separation, and it is difficult to blend

Method used

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  • Silicone rubber/polylactic acid thermoplastic vulcanized rubber and preparation method thereof
  • Silicone rubber/polylactic acid thermoplastic vulcanized rubber and preparation method thereof
  • Silicone rubber/polylactic acid thermoplastic vulcanized rubber and preparation method thereof

Examples

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Effect test

Embodiment 1

[0049] First, graphene oxide was prepared by ultrasonic-assisted Hummer's method, and then 1 g of graphene oxide and 2 g of triaminopropyl triethoxysilane were mixed in ethanol solution, the pH value was adjusted to 5, and the functionalized graphite oxide was prepared by stirring for 24 hours. 100 parts by weight of SR were put into the open mill at room temperature, plasticized, 2 parts by weight of antioxidant were added, and the mixing was continued to prepare a silicone rubber masterbatch Then, melt 68 parts by weight of PLA in an internal mixer at 160°C, add silicone rubber masterbatch, 3 parts by weight of triaminopropyl triethoxysilane, and 1.5 parts by weight of auxiliary crosslinking agent, and uniformly mix to obtain Simple blended rubber-plastic blend; add simple blended rubber-plastic blend and pre-mixed together 0.1 parts by weight of functionalized graphene oxide and 1.5 parts by weight of a Dibenzoyl oxide was dynamically vulcanized for 6 minutes to obtain a dy...

Embodiment 2

[0051] Formulation composition and consumption, technological condition and technological process are with embodiment 1, and the difference is that the consumption of functionalized graphene oxide and dibenzoyl peroxide is respectively 0.3 weight part and 1.5 weight part, the performance test of gained SR / PLA TPV The results are shown in Table 1.

Embodiment 3

[0053] Formulation composition and consumption, technological condition and technological process are with embodiment 1, and the difference is that the consumption of functionalized graphene oxide and dibenzoyl peroxide is respectively 0.3 parts by weight and 1.0 parts by weight, the performance test of gained SR / PLA TPV The results are shown in Table 1.

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Abstract

The invention provides silicone rubber / polylactic acid thermoplastic vulcanized rubber and a preparation method thereof, and designs a synergistic compatibilization system with a good effect, the mutual interface action of polylactic acid and silicon rubber is improved, and silicone rubber / polylactic acid thermoplastic vulcanized rubber with electrostatic resistance and gas barrier property can be prepared, wherein the tensile strength of the silicone rubber / polylactic acid thermoplastic vulcanized rubber can be up to 25MPa, and the breaking elongation of the silicone rubber / polylactic acid thermoplastic vulcanized rubber can be up to 200%. Application of silicon rubber can be expanded to the field of thermoplastic vulcanized rubber, meanwhile the application range of polylactic acid is further widened, and a novel material which is biodegradable and can be also used in the field of biomedicine can be provided.

Description

【Technical field】 [0001] The invention relates to a silicone rubber (SR) / polylactic acid (PLA) thermoplastic vulcanizate prepared by dynamic vulcanization technology, in particular to a mechanical strength obtained by using a method for synergistic compatibilization of functionalized graphene oxide and a silane coupling agent The invention relates to a silicone rubber / polylactic acid thermoplastic vulcanizate with high performance, good gas barrier performance, antistatic and partially biodegradable properties, belonging to the field of new material preparation. 【Background technique】 [0002] Thermoplastic vulcanizate (TPV) is a new type of polymer material prepared by dynamic vulcanization technology. It has both the processability of plastic and the high elasticity of rubber, and overcomes the shortcomings of traditional rubber processing methods. The field has a wide range of important applications. [0003] In recent years, PLA-based thermoplastic vulcanizates have bee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L83/07C08L83/08C08L67/04C08K13/06C08K9/06C08K3/04C08K5/14B29C35/02
CPCC08L83/04C08L83/08B29C35/02C08L2201/04C08L2201/06C08L2205/035C08L2205/025C08L2205/03C08L2205/08C08L2201/14C08K2201/014C08L67/04C08K13/06C08K9/06C08K3/04C08K5/14
Inventor 段咏欣刘璐张建明侯家瑞
Owner 青岛新鸿泰元科技有限公司
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