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Preparation method for ethylene propylene rubber/montmorillonoid nano composite material

A technology of nanocomposite materials and ethylene-propylene rubber, which is applied in the field of preparation of nanocomposite materials, can solve the problems of insignificant effect of dispersion modification and non-orientation of sheets, and improve tensile strength and elongation at break Effect

Active Publication Date: 2015-04-15
ANHUI HUALING CABLE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the effect of its dispersion modification is not significant, and the sheet does not have a certain orientation

Method used

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  • Preparation method for ethylene propylene rubber/montmorillonoid nano composite material
  • Preparation method for ethylene propylene rubber/montmorillonoid nano composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Nano-montmorillonite is placed in deionized water to make a solution with a concentration of 1wt%, then fully stirred for 5 days and allowed to stand; chitosan is dissolved in acetic acid solution to make a solution with a concentration of 1wt%; then 100ml The nano-montmorillonite solution and chitosan solution were mixed and stirred for 20 hours, then the mixed solution was centrifuged and washed with deionized water, and dried in vacuum at 60 °C to finally obtain modified nano-montmorillonite (M-MMT) powder, its peeling effect is as figure 1 shown.

[0019] Then, according to the weight ratio of 100:1:3, ethylene-propylene rubber, modified nano-montmorillonite and dicumyl peroxide were respectively added to the open mixer in sequence, and mixed at 50°C for 10 minutes to obtain EPR / M-MMT composite compound rubber; after that, the compound rubber was placed on a flat vulcanizer and vulcanized at 160°C for 10 minutes to obtain EPR / M-MMT nanocomposites with the mechanic...

Embodiment 2

[0021] Nano-montmorillonite is placed in deionized water to make a solution with a concentration of 1wt%, then fully stirred for 5 days and allowed to stand; chitosan is dissolved in acetic acid solution to make a solution with a concentration of 1wt%; then 100ml The nano-montmorillonite solution and chitosan solution were mixed and stirred for 20 hours, then the mixed solution was centrifuged and washed with deionized water, and dried in vacuum at 60 °C to finally obtain modified nano-montmorillonite (M-MMT) powder, its peeling effect is as figure 1 shown.

[0022] Then, according to the weight ratio of 100:2:3, ethylene-propylene rubber, modified nano-montmorillonite and dicumyl peroxide were added to the open mixer in sequence, and mixed at 50°C for 10 minutes to obtain EPR / M-MMT composite compound rubber; after that, the compound rubber was placed on a flat vulcanizer and vulcanized at 160°C for 10 minutes to obtain EPR / M-MMT nanocomposites with the mechanical properties...

Embodiment 3

[0024] Nano-montmorillonite is placed in deionized water to make a solution with a concentration of 1wt%, then fully stirred for 5 days and allowed to stand; chitosan is dissolved in acetic acid solution to make a solution with a concentration of 1wt%; then 100ml The nano-montmorillonite solution and chitosan solution were mixed and stirred for 20 hours, then the mixed solution was centrifuged and washed with deionized water, and dried in vacuum at 60 °C to finally obtain modified nano-montmorillonite (M-MMT) powder, its peeling effect is as figure 1 shown.

[0025] Then, according to the weight ratio of 100:4:3, ethylene-propylene rubber, modified nano-montmorillonite and dicumyl peroxide were respectively added to the open mixer in sequence, and mixed at 50°C for 10 minutes to obtain EPR / M-MMT composite compound rubber; after that, the compound rubber was placed on a flat vulcanizer and vulcanized at 160°C for 10 minutes to obtain EPR / M-MMT nanocomposites with the mechanic...

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Abstract

The invention provides a preparation method for an ethylene propylene rubber / montmorillonoid nano composite material. The ethylene propylene rubber / montmorillonoid nano composite material is formed by mixing ethylene propylene rubber, nano montmorillonoid and dicumyl peroxide according to a weight ratio of 100: (1-10): (2-5). The preparation method comprises the steps of stripping off modified sodium-based montmorillonoid through chitosan to obtain well modified nano montmorillonoid, then uniformly mixing the raw materials according to a certain weight ratio, adding the mixed raw materials into an open mixing machine or an internal mixer for mixing, tabletting and molding the materials on a press vulcanizer, and finally preparing the EPR / MMT nano composite material which has a better reinforcement effect and is uniformly dispersed. The ethylene propylene rubber / montmorillonoid nano composite material prepared by the preparation method disclosed by the invention is in a stripped layered state; after the ethylene propylene rubber / montmorillonoid nano composite material is modified by the nano montmorillonoid, the tensile strength and the breakage elongation of an ethylene propylene rubber base body are obviously improved.

Description

technical field [0001] The invention relates to a preparation method of a nanocomposite material, in particular to a preparation method of an ethylene-propylene rubber / montmorillonite nanocomposite material with good dispersibility and reinforcing effect. Background technique [0002] Ethylene-propylene rubber is widely used in automotive parts, wires and cables, seals and other fields due to its excellent electrical insulation, ozone resistance, and weather resistance. However, due to its poor mechanical properties, various supplements need to be added when using it. Strong agent to achieve higher mechanical properties. [0003] The combination of nanoparticles and polymers to improve the mechanical properties of polymers has been proved to be an effective method, and there have been a large number of reports. Nano-montmorillonite is a commonly used nano-layered reinforcing material. In order to avoid phase separation and agglomeration, it is usually organically modified. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08K9/04C08K3/34C08K5/14B29C35/02
CPCB29C35/02C08K3/346C08K9/04C08K2201/011C08L23/16
Inventor 姜源闵玉琳叶斌陈龙张献田兴友
Owner ANHUI HUALING CABLE GRP