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A kind of ethylene-acrylic acid copolymer/neoprene thermoplastic vulcanizate and preparation method thereof

A technology of thermoplastic vulcanizate and neoprene, applied in the field of ethylene-acrylic acid copolymer/neoprene thermoplastic vulcanizate and its preparation, ethylene-acrylic acid copolymer/neoprene blended thermoplastic vulcanizate and its preparation field, To achieve the effect of expanding product categories, good and high elasticity, and expanding application fields

Active Publication Date: 2019-11-01
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the application and reports of thermoplastic vulcanizates are mostly PP / EPDM blending systems, and there are a few oil-resistant PA / NBR blending systems, but relatively few other systems

Method used

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  • A kind of ethylene-acrylic acid copolymer/neoprene thermoplastic vulcanizate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The mass ratio of ethylene-acrylic acid copolymer to chloroprene rubber is controlled at 1:4; Antiaging agent D 2; firstly, on a double-roll mill at room temperature, mix chloroprene rubber and additives evenly to make a compound rubber; melt ethylene-acrylic acid copolymer resin on a double-roll mill at 165°C Plasticize, then add chloroprene rubber compound, and dynamically vulcanize for 8 minutes under the action of temperature field and shear force field; Under hot pressing for 10 minutes to form, then cold press setting on a flat vulcanizing machine at room temperature.

[0018] Tensile strength, elongation at break and permanent deformation at break are tested according to the standard GB / T 528-2009, and the tensile speed is 500mm / min; tear strength is measured according to the standard GB / T 529-2008; Shore A hardness According to the standard GB / T 531-2008 test.

[0019] The performance parameters of the product thermoplastic vulcanizate are shown in Table 1 bel...

Embodiment 2

[0021] The mass ratio of ethylene-acrylic acid copolymer resin and chloroprene rubber is controlled at 3:7, and all the other are identical with embodiment 1.

Embodiment 3

[0023] The mass ratio of ethylene-acrylic acid copolymer resin and chloroprene rubber is controlled at 2:3, and all the other are identical with embodiment 1.

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Abstract

The invention discloses an ethylene-acrylic acid copolymer / chloroprene rubber thermoplastic vulcanizate and a preparation method thereof. The thermoplastic vulcanizate is prepared by the following steps: using chloroprene rubber as an elastomer component and an ethylene-acrylic acid copolymer as a thermoplastic resin component; using a metal oxide system as a cross-linking agent; firstly, preparing the chloroprene rubber and an auxiliary agent into a rubber compound on a two-roll mill at room temperature; then carrying out dynamic vulcanization on a high-temperature open mill to disperse the chloroprene rubber in the ethylene-acrylic acid copolymer to obtain the thermoplastic vulcanizate. The thermoplastic vulcanizate disclosed by the invention is rich in good high elasticity while maintaining the extremely high adhesion and thermoplasticity of an ethylene-acrylic copolymer resin, which not only expands the development and application of the ethylene-acrylic copolymer resin, but also has important guiding significance for the preparation of functional thermoplastic vulcanizate.

Description

technical field [0001] The invention relates to an ethylene-acrylic acid copolymer / chloroprene rubber thermoplastic vulcanizate and a preparation method thereof, in particular to an ethylene-acrylic acid copolymer / chloroprene rubber blended thermoplastic vulcanizate prepared by dynamic vulcanization technology and a preparation method thereof. It belongs to the field of polymer material blending processing. Background technique [0002] Thermoplastic vulcanizate is a kind of thermoplastic elastomer family, which is prepared by dynamic vulcanization method. Dynamic vulcanization refers to the effect of temperature field and shear force field during the melt blending process of rubber compound and thermoplastic resin. Under this condition, the "in-situ" vulcanization of rubber is realized and the rubber phase is shredded into tiny vulcanized rubber particles dispersed in the thermoplastic resin phase, finally presenting a sea-island structure. Thermoplastic vulcanizate not on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L11/00C08L23/08C08K13/02C08K3/22C08K5/09B29C35/02
CPCB29C35/02C08K2003/222C08K2003/2296C08L11/00C08L23/0869C08K13/02C08K3/22C08K5/09
Inventor 王兆波刘菲菲张星烁
Owner QINGDAO UNIV OF SCI & TECH