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Oil resistance thermoplastic elastomer and preparing method thereof

A thermoplastic elastomer and oil-resistant technology, applied in the field of polymer materials, can solve the problems of poor oil resistance, etc., and achieve the effects of good processing performance, excellent oil resistance, and simple industrial preparation

Active Publication Date: 2013-04-24
HANGZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One object of the present invention is to provide a thermoplastic elastomer with good mechanical properties and strong oil resistance for the shortcomings of existing thermoplastic elastomers with poor oil resistance

Method used

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  • Oil resistance thermoplastic elastomer and preparing method thereof
  • Oil resistance thermoplastic elastomer and preparing method thereof
  • Oil resistance thermoplastic elastomer and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Step (1). After mixing 50g EVM and 0.1g dicumyl peroxide DCP evenly, blending at 70°C to prepare the masterbatch;

[0051] Step (2). After the masterbatch is discharged, it is cooled to normal temperature and pulverized.

[0052] Step (3). Mix the pulverized masterbatch and 50g EVA evenly, and then add it to an internal mixer with a rotor speed of 80r / min at 160°C for dynamic vulcanization for 5 minutes, and discharge to obtain an oil-resistant thermoplastic elastomer.

[0053] The mass ratio of ethylene vinyl acetate cross-linked product, ethylene vinyl acetate EVA, and dicumyl peroxide DCP in the thermoplastic elastomer prepared in Example 1 was 50:50:0.1.

[0054] EVM is produced by LANXESS, the mass content of vinyl acetate in EVM is 50%, and the melt flow rate is 10g / min; the model of EVA is ELVAX750, the mass content of vinyl acetate in EVA is 9%, and the melt flow rate is 7g / min.

Embodiment 2

[0056] Step (1). After mixing 50g EVM and 0.1g dicumyl peroxide DCP evenly, blending at 70°C to prepare the masterbatch;

[0057] Step (2). After the masterbatch is discharged, it is cooled to normal temperature and pulverized.

[0058] Step (3). Mix the pulverized masterbatch and 50g EVA evenly, and then add it to an internal mixer with a rotor speed of 80r / min at 160°C for dynamic vulcanization for 5 minutes, and discharge to obtain an oil-resistant thermoplastic elastomer.

[0059] The mass ratio of ethylene vinyl acetate cross-linked product, ethylene vinyl acetate EVA, and dicumyl peroxide DCP in the thermoplastic elastomer prepared in Example 2 was 50:50:0.1.

[0060] EVM is produced by LANXESS, the mass content of vinyl acetate in EVM is 50%, and the melt flow rate is 10g / min; the model of EVA is ELVAX260, the mass content of vinyl acetate in EVA is 28%, and the melt flow rate is 6g / min.

Embodiment 3

[0062] Step (1). After mixing 50g EVM and 0.1g dicumyl peroxide DCP evenly, blending at 70°C to prepare the masterbatch;

[0063] Step (2). After the masterbatch is discharged, it is cooled to normal temperature and pulverized.

[0064] Step (3). Mix the pulverized masterbatch and 50g EVA evenly, and then add it to an internal mixer with a rotor speed of 80r / min at 160°C for dynamic vulcanization for 5 minutes, and discharge to obtain an oil-resistant thermoplastic elastomer.

[0065] The mass ratio of ethylene vinyl acetate cross-linked product, ethylene vinyl acetate EVA, and dicumyl peroxide DCP in the thermoplastic elastomer prepared in Example 3 was 50:50:0.1.

[0066] EVM is produced by LANXESS, the mass content of vinyl acetate in EVM is 50%, and the melt flow rate is 10g / min; the model of EVA is ELVAX40L-03, the mass content of vinyl acetate in EVA is 40%, and the melt flow rate The rate was 3 g / min.

[0067] The elastomers obtained in Examples 1, 2, and 3 were hot-p...

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Abstract

The invention relates to an oil resistance thermoplastic elastomer and a preparing method thereof. Compatibility, processibility, mechanical property and oil resistivity of the existing commercial products are worse relatively. The oil resistance thermoplastic elastomer is a mixture of ethylene vinyl acetate cross-linking agent, ethylene-vinyl acetate (EVA), peroxide vulcanization agent, and addition agent. The method for preparing the oil resistance thermoplastic elastomer includes that firstly, the ethylene vinyl acetate EVM and the vulcanizing agent are commixed by weight 1000: 0.1to 5 at the temperature of 30-20 DEG C to obtain masterbatch. After the smashed masterbatch and the ethylene vinyl acetate EVA are mixed evenly, dynamic vulcanization is lasted for 1 minute to five minutes at the temperature of 0-250 DEG C, and the oil resistance thermoplastic elastomer is available. The elastomer has the advantages of being better in mechanical property, excellent in oil resistance property, simple in industrial device and recyclable in processing economy.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to an environmentally friendly cable material, in particular to an oil-resistant thermoplastic elastomer and a preparation method thereof. Background technique [0002] Thermoplastic elastomer refers to a type of elastomer material that has the elasticity of rubber at room temperature and can be plasticized at high temperature. Thermoplastic elastomers can be repeatedly processed and recycled using similar processing techniques as thermoplastic resins. Thermoplastic elastomers are usually prepared by dynamic vulcanization of thermoplastic resin and rubber. During melt processing, rubber vulcanizes and is uniformly dispersed in the continuous phase of thermoplastic resin as dispersed particles. In this way, the vulcanized rubber dispersed phase provides the elasticity and flexibility of the material, while the thermoplastic resin matrix provides the melt processability of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L31/04C08L83/06C08J3/24C08K5/14C08K7/24C08K3/22C08K3/34C08K3/38C08K9/10
Inventor 李勇进唐彦春
Owner HANGZHOU NORMAL UNIVERSITY
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