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Resin composition with ultrahigh thermal conductivity and preparation method thereof

A technology of resin composition and thermal conductivity, which is applied in the field of resin composition with ultra-high thermal conductivity and its preparation, can solve the problem that the thermal conductivity and stiffness of resin composition cannot be improved at the same time, achieve excellent electromagnetic shielding performance, avoid Electromagnetic signal interference, enhance the effect of heat dissipation

Inactive Publication Date: 2020-04-17
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a resin composition with ultra-high thermal conductivity and its preparation method in order to overcome the above-mentioned defects in the prior art, which solves the problem that the thermal conductivity and stiffness of the resin composition cannot be simultaneously improved in the prior art question

Method used

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  • Resin composition with ultrahigh thermal conductivity and preparation method thereof
  • Resin composition with ultrahigh thermal conductivity and preparation method thereof
  • Resin composition with ultrahigh thermal conductivity and preparation method thereof

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preparation example Construction

[0027] The preparation method of the resin composition with ultrahigh thermal conductivity adopts the following steps:

[0028] (1) Prepare materials according to the following components and parts by weight: matrix resin 30-75, natural graphite 20-50, reinforcing fiber 5-20, compatibilizer 3-6, antioxidant 0.1-1, lubricant 0.5-2 , In this system, the base resin that can be used is nylon 6, nylon 66, polyphenylene sulfide (PPS), ABS resin, polycarbonate (PC), polyethylene terephthalate (PET) or poly One or more of butanediol terephthalate (PBT). The particle size of natural graphite is below 300 mesh. The reinforcing fibers include but are not limited to one or more of carbon fibers, glass fibers or basalt fibers. The compatibilizer is a graft or copolymer with reactive functional groups, including but not limited to styrene-methyl methacrylate-maleic anhydride terpolymer, polyolefin elastomer grafted maleic anhydride, ethylene-propylene One or more of copolymer grafted wit...

Embodiment 1

[0032]A resin composition with ultrahigh thermal conductivity and a preparation method thereof, the method comprising the following steps:

[0033] (1) Prepare materials according to the following components and parts by weight:

[0034]

[0035] Among them, the matrix resin PA6 is REMEFOR M1013B, the natural graphite has a particle size of 180 mesh, the reinforcing fiber is Jushi glass fiber 568H, the compatibilizer is POE-g-MAH, the antioxidant is Irganox 1076, and the lubricant is PETS.

[0036] (2) Put the above-mentioned raw materials except the reinforcing fiber into the mixer according to the formula and stir them. After mixing evenly, feed them into the main feeding port of the twin-screw extruder through the metering device, and feed the reinforcing fibers into the extruder through the metering device. The side feeding port of the twin-screw extruder is controlled to be 36:1, the temperature of the twin-screw extruder is controlled to be 230-250°C, and the screw sp...

Embodiment 2

[0038] A resin composition with ultrahigh thermal conductivity and a preparation method thereof, the method comprising the following steps:

[0039] (1) Prepare materials according to the following components and parts by weight:

[0040]

[0041] Among them, the matrix resin PA6 is REMEFOR M1013B, the natural graphite has a particle size of 180 mesh, the reinforcing fiber is Jushi glass fiber 568H, the compatibilizer is POE-g-MAH, the antioxidant is Irganox 1076, and the lubricant is PETS.

[0042] (2) Put the above-mentioned raw materials except the reinforcing fiber into the mixer according to the formula and stir them. After mixing evenly, feed them into the main feeding port of the twin-screw extruder through the metering device, and feed the reinforcing fibers into the extruder through the metering device. The side feeding port of the twin-screw extruder is controlled to be 36:1, the temperature of the twin-screw extruder is controlled to be 230-250°C, and the screw s...

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Abstract

The invention relates to a resin composition with ultrahigh thermal conductivity and a preparation method thereof. The resin composition comprises the following components and raw materials in parts by weight: 30-75 parts of a matrix resin, 20-50 parts of natural graphite, 5-20 parts of reinforced fibers, 3-6 parts of a compatilizer, 0.1-1 part of an antioxidant and 0.5-2 parts of a lubricant. Thepreparation method comprises the following steps: uniformly mixing the raw materials except the reinforced fibers, feeding an obtained mixture into a main feeding hole of a double-screw extruder through a weightless metering device; feeding the reinforced fibers into a side feeding hole of the extruder in proportion by adopting a weightless metering device; controlling the temperature of the double-screw extruder to 230-300 DEG C, melting and fully mixing the materials under the conveying, shearing and mixing of screws, and carrying out extrusion by a neck mold, drawing, cooling, drying, pelletizing and the like to obtain the resin composition with ultrahigh thermal conductivity. The resin composition provided by the invention has the advantages of ultrahigh thermal conductivity, very lowcost, excellent electromagnetic shielding performance, balanced mechanical properties, heat resistance and convenient productbility.

Description

technical field [0001] The invention relates to the field of synthesis of thermally conductive resin compositions, in particular to a resin composition with ultrahigh thermal conductivity and a preparation method thereof. Background technique [0002] With the rapid development of electronic and electrical products, electronic components and logic circuits are becoming more and more integrated and miniaturized, and the power density of components is getting higher and higher. During the operation of components, a considerable part of the energy is converted into heat, and the accumulation of heat will not only have a negative impact on the working efficiency of components, but also greatly reduce their service life. Therefore, how to export these heat with the shortest path and the fastest speed has become a key issue. [0003] As a good conductor of heat, metal is usually used as a traditional packaging material for heat dissipation from components. However, metal materia...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L51/06C08K13/04C08K3/04C08K7/14C09K5/14C08K7/06C08L81/02C08L23/08C08L51/00C08L67/02C08K7/10C08L69/00
CPCC08L67/02C08L69/00C08L77/02C08L81/02C08L2201/08C09K5/14C08L51/06C08K13/04C08K3/04C08K7/14C08K7/06C08L23/0884C08L51/003C08K7/10
Inventor 胡建建李强周霆辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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