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Preparation method of graphene oxide/nitrile rubber modified high-density polyethylene for 3D printing

A high-density polyethylene, nitrile rubber technology, applied in the direction of additive processing, etc., can solve the problems of easy aging, easy scratching, easy deformation, etc.

Active Publication Date: 2018-10-09
Z RIVER GRP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its mechanical properties are poor, poor air permeability, easy to deform, easy to age, easy to become brittle, brittleness is lower than PP, easy to stress cracking, low surface hardness, easy to scratch

Method used

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  • Preparation method of graphene oxide/nitrile rubber modified high-density polyethylene for 3D printing
  • Preparation method of graphene oxide/nitrile rubber modified high-density polyethylene for 3D printing
  • Preparation method of graphene oxide/nitrile rubber modified high-density polyethylene for 3D printing

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Experimental program
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Effect test

Embodiment 1

[0057] Embodiment 1, a kind of preparation method of graphene oxide / acrylonitrile-butadiene rubber modified high-density polyethylene for 3D printing, carries out following steps successively:

[0058] 1), modification of graphene oxide:

[0059] Add 200ml SOCl to 100mg graphene oxide 2 , 1ml dimethylformamide (DMF), reacted at 60°C for 36h, after the reaction was completed, the excess SOCl 2 and the solvent are removed by distillation at 90°C to obtain chlorinated graphene oxide;

[0060] Add 100mL of dimethylformamide solvent and 0.5g of octadecyltrimethylammonium chloride to the chlorinated graphene oxide obtained above, react at 110°C for 72h, filter the reaction product, and rinse the obtained filter cake with ethanol Suction filtration 3 times, each time the amount of ethanol is 30ml, to obtain modified graphene oxide.

[0061] 2), preparation of modified graphene oxide / powder nitrile rubber:

[0062] The modified graphene oxide obtained in step 1) and deionized wate...

Embodiment 2

[0080] Embodiment 2, a kind of preparation method of graphene oxide / acrylonitrile-butadiene rubber modified high-density polyethylene for 3D printing, carries out following steps successively:

[0081] 1), modification of graphene oxide:

[0082] Add 200ml SOCl to 100mg graphene oxide 2, 2.5ml dimethylformamide (DMF), reacted at 80°C for 36h, after the reaction, the excess SOCl 2 and the solvent are removed by distillation at 90°C to obtain chlorinated graphene oxide;

[0083] Add 100mL DMF and 1.5g octadecyltrimethylammonium bromide to the chlorinated graphene oxide obtained above, react at 130°C for 108h, filter the reaction product, and wash the obtained filter cake with ethanol for 3 times, The amount of ethanol was 30ml to obtain modified graphene oxide.

[0084] 2), preparation of modified graphene oxide / powder nitrile rubber:

[0085] The modified graphene oxide obtained in step 1) and deionized water are dispersed in a high-speed mixer according to a mass ratio of ...

Embodiment 3

[0092] Embodiment 3, "polyethylene wax" in embodiment 2 is changed into " white oil ", all the other are equal to embodiment 2.

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Abstract

The invention discloses a preparation method of graphene oxide / nitrile rubber modified high density polyethylene for 3D (Three-Dimensional) printing. The preparation method comprises the following steps: 1), carrying out modification on graphene oxide, so as to obtain modified graphene oxide; 2), dispersing powdery nitrile rubber and deionized water in a high-speed mixer, then adding modified graphene oxide suspension liquid and a silane coupling agent into an obtained first mixture, agitating an obtained second mixture, and afterwards, subjecting the second mixture to washing, dehydration and vacuum drying, so as to obtain modified graphene oxide / powdery nitrile rubber; 3), mixing high density polyethylene, a dispersing agent, the modified graphene oxide / powdery nitrile rubber, a compatibilizer and an antioxidant at a high speed, adding an obtained mixed material into a double screw extruder, and extruding, cooling and granulating the mixed material, so as to obtain a high density polyethylene composition, wherein a reaction temperature is 180 to 210 DEG C, and reaction time is 5min to 10min.

Description

technical field [0001] The invention relates to a preparation method of 3D printing materials, in particular to a preparation method of graphene oxide / powder nitrile rubber modified high-density polyethylene for 3D printing. Background technique [0002] 3D printing integrates cutting-edge technologies such as digital modeling technology, electromechanical control technology, information technology, material science and chemistry, expands the non-mainstream design trend, and also demonstrates the vitality and potential of personalized creation in the new era. The core technology of the "Third Industrial Revolution". Polyethylene has the advantages of light weight, non-toxicity, excellent dielectric properties, good chemical stability, corrosion resistance, low price, and easy molding and processing. HDPE is a high crystallinity, non-polar thermoplastic resin, which has good heat resistance and cold resistance, good chemical stability, high rigidity and toughness, good mecha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L91/06C08L61/06C08K9/12C08K9/02C08K9/04C08K3/04B33Y70/00
CPCB33Y70/00C08L23/06C08L2205/025C08L2205/03C08L2207/062C08L61/06C08K9/12C08K9/02C08K9/04C08K3/04C08L91/06
Inventor 张琪张华孔明张依叶开天张超
Owner Z RIVER GRP LTD
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