Graphene modified conductive polystyrene composite material for precision electronic carrier tape and preparation method thereof

A composite material and polystyrene technology, applied in the chemical field, can solve problems such as electronic carrier needs to be improved, molding shrinkage strength, toughness, surface crystal point surface resistance uniformity is difficult to meet the use requirements, carbon deposition, etc.

Inactive Publication Date: 2020-04-17
ENN GRAPHENE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this, the electronic carrier tape in the related art has been difficult to meet the use requirements in many aspects such as molding shrinkage rate, pocket size, strength, toughness, surface crystal point, foreign matter, defect occurrence rate, and uniformity of surface resistance; at the same time, The electronic carrier tape in the related art is also prone to serious carbon deposition during processing
[0004] Thereby, the relevant technology of existing electronic carrying tape still needs to be improved

Method used

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  • Graphene modified conductive polystyrene composite material for precision electronic carrier tape and preparation method thereof
  • Graphene modified conductive polystyrene composite material for precision electronic carrier tape and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Graphene was used as the main raw material to add hydrogen peroxide and ferrous ions for mild oxidation treatment, the mass ratio of the three was 2:4:2, and stirred at 90°C for 2 hours.

[0079] Put the obtained products into several centrifuge bottles respectively. Do not overfill the graphene solution to prevent liquid splashing during the centrifugation process. Then put the centrifuge bottles into the centrifuge. The centrifuge speed is set at 9000rpm, and the centrifugation time is controlled at about 5min. , then remove the supernatant, wash with deionized water or other organic solvents, and filter until neutral, put it in a drying oven for drying, the temperature of the drying oven can be adjusted to 100°C, dry for 4 hours, and then you can get Graphene oxide with a small amount of hydroxyl or epoxy groups.

[0080] Then put graphene oxide into octadecylamine and formaldehyde solvent, the volume ratio can be set to 1:5:20, ultrasonically disperse for 1 hour, an...

Embodiment 2

[0093] Graphene was used as the main raw material to add hydrogen peroxide and ferrous ions for mild oxidation treatment, the mass ratio of the three was 2:4:2, and stirred at 90°C for 2 hours.

[0094] Put the obtained products into several centrifuge bottles respectively. Do not overfill the graphene solution to prevent liquid splashing during the centrifugation process. Then put the centrifuge bottles into the centrifuge. The centrifuge speed is set at 9000rpm, and the centrifugation time is controlled at about 5min. , then remove the supernatant, wash with deionized water or other organic solvents, and filter until neutral, put it in a drying oven for drying, the temperature of the drying oven can be adjusted to 100°C, dry for 4 hours, and then you can get Graphene oxide with a small amount of hydroxyl or epoxy groups.

[0095] Then put graphene oxide into octadecylamine and formaldehyde solvent, the volume ratio can be set to 1:5:20, ultrasonically disperse for 1 hour, an...

Embodiment 3

[0108] Graphene was used as the main raw material to add hydrogen peroxide and ferrous ions for mild oxidation treatment, the mass ratio of the three was 2:4:2, and stirred at 90°C for 2 hours.

[0109] Put the obtained products into several centrifuge bottles respectively. Do not overfill the graphene solution to prevent liquid splashing during the centrifugation process. Then put the centrifuge bottles into the centrifuge. The centrifuge speed is set at 9000rpm, and the centrifugation time is controlled at about 5min. , then remove the supernatant, wash with deionized water or other organic solvents, and filter until neutral, put it in a drying oven for drying, the temperature of the drying oven can be adjusted to 100°C, dry for 4 hours, and then you can get Graphene oxide with a small amount of hydroxyl or epoxy groups.

[0110] Then put graphene oxide into octadecylamine and formaldehyde solvent, the volume ratio can be set to 1:5:20, ultrasonically disperse for 1 hour, an...

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Abstract

The invention provides a graphene modified conductive polystyrene composite material for a precision electronic carrier tape and a preparation method thereof. The graphene modified conductive polystyrene composite material contains a polymer formed by the following components: polystyrene, a grafting agent and an organic amine modified conductive filler, wherein the conductive filler comprises graphene. The polystyrene-based composite material has good shrinkage rate, high strength and excellent electrical properties; all the components in the composite material have good interfacial compatibility, and chemical crosslinking or physical entanglement among all the components is sufficient, so interface bonding strength is high, surface resistance is uniform, the surface is fine and smooth, and a crystal point phenomenon is not liable to occur; and thus, at least part of the electronic carrier tape formed by the polystyrene-based composite material is not liable to have the problems of pocket deformation, tape strip tearing and unsmooth bag entry and exit of electronic components, the phenomenon of carbon deposition is avoided, and high flatness is realized.

Description

technical field [0001] The invention relates to the field of chemical technology, in particular to a graphene-modified conductive polystyrene composite material for precise electronic carrier tape and a preparation method thereof. Background technique [0002] At present, with the development of electronic information technology and the arrival of 5G Internet, electronic products are gradually developing in the direction of light weight and compactness, and the precision control of electronic components is becoming more and more strict. (SMT) requirements are getting higher and higher. Thin electronic carrier tape is produced and developed along with electronic components. It is a tape-shaped product used in the field of electronic packaging. It is widely used in the production, transportation, packaging and other links of small electronic components. Electronic carrier tape plays a vital role in improving the packaging efficiency of electronic components, the antistatic ab...

Claims

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Application Information

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IPC IPC(8): C08L51/00C08L53/02C08K3/04C08K9/02C08K9/04B65D73/02C08J3/22
CPCC08L51/003B65D73/02C08J3/226C08L2205/03C08K2201/001C08J2351/00C08J2451/00C08J2453/02C08L53/025C08K3/042C08K9/02C08K9/04
Inventor 郭晓然张新和樊振兴张志博武小江时培文刘婷婷徐玮彤徐欢曲波李金来
Owner ENN GRAPHENE TECH CO LTD
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