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Modified PP (polypropylene) material with long carbon fiber and reinforced conductivity and preparation method thereof

A technology of long carbon fiber and conductive enhancement, which is applied in the field of long carbon fiber conductive reinforced modified PP material and its preparation, and can solve the problems of weak conductivity of PP

Inactive Publication Date: 2013-05-01
ANHUI KEJU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the use of glass fiber to modify PP can partially overcome the defect of high shrinkage of PP itself, but this can only change one of the defects of PP itself, and due to the insulation of glass fiber, the conductivity of PP modified by glass is weak

Method used

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  • Modified PP (polypropylene) material with long carbon fiber and reinforced conductivity and preparation method thereof
  • Modified PP (polypropylene) material with long carbon fiber and reinforced conductivity and preparation method thereof
  • Modified PP (polypropylene) material with long carbon fiber and reinforced conductivity and preparation method thereof

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preparation example Construction

[0039] Correspondingly, the embodiment of the present invention also provides a preparation method of the above-mentioned long carbon fiber conductive reinforced modified PP material, the process flow is as follows figure 1 shown. The method comprises the steps of:

[0040] S01. Weigh the formula components: weigh each component according to the formula of the above-mentioned long carbon fiber conductive reinforced modified PP material;

[0041] S02. Preparation of mixed material: After mixing the PP resin, compatibilizer and coupling agent weighed in step S01, add conductive carbon black, toughening agent, plastic processing aid to continue the mixing process to obtain the mixture material;

[0042] S03. Melt extrusion processing of the mixed material: melt and extrude the mixed material in step S02 to obtain the extruded material;

[0043]S04. Pretreatment of long carbon fiber components: preheating the long carbon fibers weighed in step S01 at 100-110° C. and then perfor...

Embodiment 1

[0063] The weight percent formulation components of the long carbon fiber conductive reinforced modified PP material of the present embodiment are as follows:

[0064] 70% PP resin; 15% long carbon fiber; 4% compatibilizer; 3% toughening agent; 3.5% coupling agent; 3% conductive carbon black; 1.5% plastic processing aid.

[0065] Its preparation method is as follows:

[0066] Step 1. Weigh each component according to the above-mentioned weight percentage, and carry out drying treatment on each component taken; specifically, drying treatment can be carried out by using a dryer;

[0067] Step 2. Put the dried PP resin, compatibilizer and coupling agent in a high-speed mixer or blender and pre-mix for 3 minutes, then add conductive carbon black, toughener, and plastic processing aids and continue mixing for 10 minutes;

[0068] Step 3. Add the mixed material in step 2 into the hopper of the twin-screw extruder, undergo melting reaction, kneading, and flow to the cross dipping he...

Embodiment 2

[0074] The weight percent formulation components of the long carbon fiber conductive reinforced modified PP material of the present embodiment are as follows:

[0075] 50% PP resin; 30% long carbon fiber; 3% compatibilizer; 10% toughening agent; 3% coupling agent; 3% conductive carbon black; 1% plastic processing aid.

[0076] Its preparation method is as follows:

[0077] Step 1. Weigh each component according to the above-mentioned weight percentage, and carry out drying treatment on each component taken; specifically, drying treatment can be carried out by using a dryer;

[0078] Step 2. Put the dried PP resin, compatibilizer and coupling agent in a high-speed mixer or blender and pre-mix for 3 minutes, then add conductive carbon black, toughener, and plastic processing aids and continue mixing for 10 minutes;

[0079] Step 3. Add the mixed material in step 2 into the hopper of the twin-screw extruder, undergo melting reaction, kneading, and flow to the cross dipping head;...

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Abstract

The invention discloses a modified PP (polypropylene) material with long carbon fiber and reinforced conductivity and a preparation method thereof. The modified PP material with the long carbon fiber and the reinforced conductivity comprises the following components in percentage by weight: 40-70% of PP resin, 3-5% of compatilizer, 5-10% of flexibilizer, 3-5% of coupling agent, 1-3% of conductive carbon black, 5-40% of long carbon fiber and 1-3% of plastic processing additive. According to the modified PP material with the long carbon fiber and the reinforced conductivity, the PP resin is employed as matrix resin, the long carbon fiber is employed as packing, and the both are in synergistic effect when in melt extrusion process, therefore the modified PP material with the long carbon fiber and the reinforced conductivity is endowed with excellent comprehensive mechanical properties, such as tensile strength, bending strength, bending modulus and impact strength, and excellent conductivity. The modified PP material with the long carbon fiber and the reinforced conductivity is simple in process, easy in controlling of conditions, low in cost, low in requirements on equipment, and applicable to industrial production.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to a long carbon fiber conductive reinforced modified PP material and a preparation method thereof. Background technique [0002] PP is a semi-crystalline material. Because the homopolymer PP temperature is very brittle above 0C, many commercial PP materials are random copolymers with 1 to 4% ethylene or clamp copolymers with higher ethylene content. Copolymer PP materials have a low heat distortion temperature (100C), low transparency, low gloss, and low rigidity, but they have high impact strength. Both homopolymer and copolymer PP materials have excellent moisture absorption resistance, acid and alkali corrosion resistance, and solubility resistance. [0003] The flow rate MFR of PP ranges from 1 to 40. PP materials with low MFR have better impact resistance but lower elongation strength. For materials with the same MFR, the strength of the copolymer type is higher ...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L51/06C08K13/04C08K7/06C08K3/04C08F255/02B29B9/06B29C47/92B29C48/92
CPCB29B7/46B29B7/72B29B7/7461B29B7/90B29B9/06B29B9/12B29B9/14B29C48/04B29C48/40B29C48/875B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895B29C2948/92904
Inventor 徐东徐永文胜
Owner ANHUI KEJU NEW MATERIALS
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