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Low dielectric PBT/PETG alloy nanometer injection molding composite material as well as preparation method and application thereof

A composite material and alloy nanotechnology, which is applied in the field of low-dielectric PBT/PETG alloy nano-injection composite material and its preparation, can solve the problems of high price, low output, and no solution to dielectric, and achieves low dielectric loss factor, Good mechanical properties, the effect of excellent mechanical properties

Inactive Publication Date: 2018-06-01
SINOPLAST NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the research field of this low dielectric material: 1. Add glass fiber with low dielectric constant to prepare this low dielectric constant composite material, but not only the price is expensive, but also the output is small, which cannot meet the market demand; 2. Reduce the amount of glass fiber added, and the comprehensive mechanical properties, temperature resistance, and chemical resistance of this type of product are greatly reduced
[0004] CN104629274A discloses a polyester composite material for nano-injection molding, which is composed of the following components in weight percent: 37.5-81% polyester resin, 3-20% polyolefin, 0.05-0.5% antioxidant, 0.1-0.2% mold release agent, 10-40% glass fiber, the polyester resin comprises PBT resin, and the weight percentage of the PBT resin in the polyester composite material for nano-injection molding is 30-70% , although its products enhance the bonding strength of resin and metal, but it does not solve the problems of dielectric

Method used

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  • Low dielectric PBT/PETG alloy nanometer injection molding composite material as well as preparation method and application thereof
  • Low dielectric PBT/PETG alloy nanometer injection molding composite material as well as preparation method and application thereof
  • Low dielectric PBT/PETG alloy nanometer injection molding composite material as well as preparation method and application thereof

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Effect test

Embodiment 1

[0035] In this embodiment, the raw materials for the preparation of PBT / PETG alloy nano-injection molding composite materials include the following components by weight:

[0036]

[0037] Wherein, the antioxidant is antioxidant 1010, the lubricant is lubricant TAF, the anti-UV agent is ultraviolet absorber UV-531, and the compatibilizer is maleic anhydride grafted POE.

[0038] The preparation method is specifically:

[0039] (1) Mix PBT resin, PETG resin, antioxidant, lubricant, anti-UV agent and compatibilizer

[0040] (2) Utilize the twin-screw extruder to blend the mixture obtained in step (1), extrude, the extruding temperature is 220°C, the main engine speed of the twin-screw extruder is 350rpm / min, and the feeding speed The temperature is 20rpm / min to obtain a molten blend, and then glass fibers are added, sheared and meshed to obtain a PBT / PETG alloy nano-injection composite material.

Embodiment 2

[0042] In this embodiment, the raw materials for the preparation of PBT / PETG alloy nano-injection molding composite materials include the following components by weight:

[0043]

[0044] Among them, the antioxidant is antioxidant 168, the lubricant is lubricant PETS, the anti-UV agent is ultraviolet absorber VSU, and the compatibilizer is maleic anhydride grafted polypropylene.

[0045] The preparation method is specifically:

[0046] (1) PBT resin, PETG resin and antioxidant, lubricant, anti-UV agent and compatibilizer are mixed evenly;

[0047](2) Utilize the twin-screw extruder to blend the mixture obtained in step (1), and extrude. The temperature is 30rpm / min to obtain a molten blend; then add glass fiber, shear and mesh to obtain a PBT / PETG alloy nano-injection composite material.

Embodiment 3

[0049] In this embodiment, the raw materials for the preparation of PBT / PETG alloy nano-injection molding composite materials include the following components by weight:

[0050]

[0051] Wherein, the antioxidant is antioxidant 1010, the lubricant is lubricant TAF, the anti-UV agent is ultraviolet absorber UV-531, and the compatibilizer is maleic anhydride grafted polypropylene.

[0052] The preparation method is specifically:

[0053] (1) PBT resin, PETG resin and antioxidant, lubricant, anti-UV agent and compatibilizer are mixed evenly;

[0054] (2) Utilize the twin-screw extruder to blend the mixture obtained in step (1), and extrude. The temperature is 10 rpm / min to obtain a molten blend, and then add glass fiber, shear and mesh to obtain a PBT / PETG alloy nano-injection composite material.

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Abstract

The invention provides a low dielectric PBT / PETG alloy nanometer injection molding composite material as well as a preparation method and application thereof. The preparation raw materials of the PBT / PETG alloy nanometer injection molding composite material comprise the following components in parts by weight: 30 to 50 parts of PBT resin, 30 to 50 parts of PETG resin, 30 to 40 parts of glass fiber, 0.2 to 0.8 part of an antioxidant, 1 to 2 parts of a lubricating agent, 0.3 to 0.5 part of an anti-UV agent and 3 to 8 parts of a compatilizer. The PBT / PETG alloy nanometer injection molding composite material has high mechanical performance, heat resistance, chemical resistance and machinability, has relatively low dielectric constant and relatively low dielectric dissipation factor, and is applicable to the preparation of low dielectric materials or electric equipment products.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a PBT / PETG alloy nano-injection composite material and its preparation method and application, in particular to a low-dielectric PBT / PETG alloy nano-injection composite material and its preparation method and application. Background technique [0002] Low-dielectric nano-injection molding composite materials are used in electronic products such as mobile phones, tablets, and smart watches. Compared with traditional glass fiber-reinforced nano-injection molding composite materials, low-dielectric nano-injection molding composite materials have lower dielectric loss, and Higher electromagnetic signal transmittance is of great significance in the development of electronic, electrical and communication equipment. [0003] At present, there are still some urgent problems to be solved in the field of low dielectric nano-injection molding composites, especially the problems of l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L51/06C08K7/14C08K5/134C08K5/526C08K5/132C08K13/04
CPCC08L67/02C08L2201/08C08L2205/025C08L2205/03C08L51/06C08K7/14C08K5/1345C08K5/526C08K5/132C08K13/04
Inventor 朱怀才谢平朱正红陈列许环杰
Owner SINOPLAST NEW MATERIAL
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