Graphene reinforced conductive PC/PBT alloy for electronic carrier tape

A technology of graphene and graphene nanosheets, which is applied in the field of engineering plastic alloys and can solve the problems of large interaction force, difficult dispersion, and agglomeration of nanosheets

Pending Publication Date: 2020-10-23
江苏新奥碳纳米材料应用技术研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface energy of graphene is high, the interaction force between nanosheets is large, and the agglomeration phenomenon is serious, so it is difficult to obtain effective exfoliation and uniform dispersion in the PC / PBT alloy matrix.

Method used

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  • Graphene reinforced conductive PC/PBT alloy for electronic carrier tape
  • Graphene reinforced conductive PC/PBT alloy for electronic carrier tape
  • Graphene reinforced conductive PC/PBT alloy for electronic carrier tape

Examples

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preparation example Construction

[0027] Such as figure 1 As shown, the present invention also provides a preparation method for graphene-enhanced conductive PC / PBT alloy special materials for electronic carrier tapes, comprising the following steps: (1) Preparation of graphene compounded conductive fillers: graphene nanosheets, second The conductive filler is added to the mixing equipment for mixing, the mixing temperature is 20~100°C, and the mixing time is 1~30min to obtain the compound conductive filler: (2) Preparation of graphene-enhanced conductive masterbatch: take PC and PBT as the matrix, add the above compound conductive filler Fillers, dispersants, tougheners, antioxidants, catalysts, coupling agents, blending and granulation of the prepared raw materials through melt blending technology, the melt blending temperature is set at 195~290°C, and then PC / PBT conductive masterbatch; (3) Preparation of graphene-enhanced conductive alloy: mix PC / PBT conductive masterbatch, a certain proportion of PC, and...

Embodiment 1

[0031] A preparation method of PC / PBT alloy conductive special material for electronic carrier tape, comprising the following steps:

[0032]First, add 5 parts of graphene and the second conductive filler (2 parts of arrayed carbon nanotubes, 1 part of carbon black) into a high-speed mixer and mix them at 50°C. After mixing for 30 minutes, a graphene composite conductive filler is obtained;

[0033] The second step is to use 55.4 parts of PC and 20 parts of PBT as the main raw materials, add 1.5 parts of mineral oil and 0.2 parts of organic chromium coupling agent into the high-speed mixer and mix for 1 minute, then add the above-mentioned graphene compound conductive filler and mix again for 2 minutes. After the compound conductive filler is uniformly coated on PC and PBT, add 0.2 parts of lauryl thiodipropionate, 1.5 parts of polyester wax, 3 parts of ethylene-methyl acrylate copolymer, 0.1 parts of Sb2O3 and then fully Mix for 3 minutes, then add to a twin-screw extruder fo...

Embodiment 2

[0036] A preparation method of PC / PBT alloy conductive special material for electronic carrier tape, comprising the following steps:

[0037] First, add 5 parts of graphene and the second conductive filler (2 parts of arrayed carbon nanotubes, 1 part of carbon black) into a high-speed mixer and mix them at 50°C. After mixing for 30 minutes, a graphene composite conductive filler is obtained;

[0038] In the second step, 35.4 parts of PC and 30 parts of PBT are used as the main raw materials, 1.5 parts of mineral oil and 0.2 parts of organosilane coupling agent are put into the high-speed mixer and mixed for 1 minute, then the above-mentioned graphene composite conductive filler is added and mixed for 2 minutes again, and the Coat the conductive filler evenly on PC and PBT, then add 0.2 parts of octadecyl thiodipropionate, 1.5 parts of polyester wax, 3 parts of MBS-g-GMA, 0.1 parts of Sb2O3 and mix thoroughly for 3 minutes again. Then add a twin-screw extruder for melt blending...

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Abstract

The invention relates to the technical field of engineering plastic alloys, in particular to a graphene reinforced conductive PC / PBT alloy for an electronic carrier tape. The alloy comprises the following components: 42 to 66 parts of PC; 20 to 43 parts of PBT; 0.1 to 5 parts of graphene; 0.1 to 10 parts of a second conductive filler; 0.5 to 3 parts of a toughening agent; 0.5 to 3 parts of a dispersant; 0.1 to 0.6 part of an antioxidant; 0.05 to 0.2 part of a coupling agent; 0.001 to 0.2 part of a catalyst; 0.01 to 0.2 part of TPP; the invention aims to innovatively develop an industrialized and clean production process of the graphene reinforced conductive PC / PBT alloy for the electronic carrier tape. The graphene nanosheets which are uniformly dispersed are promoted to form network distribution in a matrix, and the PC / PBT alloy can be endowed with relatively high conductivity under the condition of relatively low additive amount so that the efficiency of the graphene nanosheets for constructing a conductive network in the PC / PBT alloy is fully exerted.

Description

technical field [0001] The invention relates to the technical field of engineering plastic alloys, in particular to a graphene-enhanced conductive PC / PBT alloy for electronic carrier tapes. Background technique [0002] PC is one of the five major engineering plastics. The carbonate group imparts high toughness and durability, and the bisphenol A group imparts high heat resistance. However, the molecular bond of PC contains a large number of benzene rings, and the molecular chain is relatively rigid. The steric hindrance is large, so the melting temperature is high, the residual stress of the product is large, and stress cracking is prone to occur, making it difficult to produce complex thin-walled products. Another major defect of PC is that the stability of hydrolysis resistance is not high enough, it is sensitive to the gap, the scratch resistance is poor, it will turn yellow when exposed to ultraviolet rays for a long time, and it is easy to be corroded by chemical solve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L67/02C08L91/00C08L67/00C08L23/08C08L51/04C08L91/06C08K13/02C08K3/04C08K5/372C08K5/13C08J5/00B29B9/06
CPCC08J5/005B29B9/06C08J2369/00C08J2467/02C08J2367/02C08J2469/00C08J2491/00C08J2467/00C08J2423/08C08J2451/04C08J2491/06C08K13/02C08K3/042C08K3/041C08K3/04C08K5/372C08K5/13C08K2201/001C08K2201/011
Inventor 武小江郭晓然樊振兴时培文张新和张志博徐玮彤刘婷婷徐欢李金来
Owner 江苏新奥碳纳米材料应用技术研究院有限公司
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