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Reinforced polybutylene terephthalate composition and preparation method thereof

A technology for polybutylene terephthalate and a composition is applied in the field of reinforced polybutylene terephthalate composition and its preparation, and can solve the problem of low impact strength, low molecular chain flexibility and high molecular rigidity and other problems, to achieve excellent mechanical properties and processing properties, reduce particle agglomeration, and good compatibility.

Inactive Publication Date: 2020-07-14
GUANGDONG ALDEX NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the structural point of view, there are benzene rings and polar ester groups that are difficult to move in the repeating structural unit of PBT. Due to the formation of a conjugated system between the benzene ring and the ester group, the molecule is more rigid and the molecular chain is more flexible. Low, so that the notched impact strength of PBT is low

Method used

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  • Reinforced polybutylene terephthalate composition and preparation method thereof
  • Reinforced polybutylene terephthalate composition and preparation method thereof
  • Reinforced polybutylene terephthalate composition and preparation method thereof

Examples

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Effect test

Embodiment 1

[0075] In this embodiment, a reinforced polybutylene terephthalate composition is prepared from the following raw materials in parts by weight:

[0076]

[0077] The preparation method of above-mentioned reinforced polybutylene terephthalate composition, comprises the following steps:

[0078](1) After placing the polybutylene terephthalate A resin and the polybutylene terephthalate B resin at a temperature of 90° C. for 8 hours, and then cooling, the cooled polybutylene terephthalate Butylene dicarboxylate A resin and polybutylene terephthalate B resin and the ethylene-octene copolymer graft glycidyl methacrylate, polytetrafluoroethylene resin, antioxidant CY, bis (2,4-dicumylphenyl) pentaerythritol diphosphite is added to the mixer for mixing, and the rotation speed of the mixer is 1000 rpm;

[0079] (2) The hollow glass microspheres, epoxy cyclohexyl POSS, monoalkoxy fatty acid titanate coupling agent, hyperbranched polyester polymer, and erucamide are added to another ...

Embodiment 2

[0083] In this embodiment, a reinforced polybutylene terephthalate composition is prepared from the following raw materials in parts by weight:

[0084]

[0085]

[0086] The preparation method of above-mentioned reinforced polybutylene terephthalate composition, comprises the following steps:

[0087] (1) After placing the polybutylene terephthalate A resin and the polybutylene terephthalate B resin at a temperature of 120° C. for 4 hours, and then cooling, the cooled polybutylene terephthalate Butylene dicarboxylate A resin and polybutylene terephthalate B resin and the ethylene-octene copolymer graft glycidyl methacrylate, polytetrafluoroethylene resin, antioxidant CY, bis (2,4-dicumylphenyl) pentaerythritol diphosphite is added to the mixer for mixing, and the rotation speed of the mixer is 1000 rpm;

[0088] (2) The hollow glass microspheres, glycidyl POSS, monoalkoxy fatty acid titanate coupling agent, hyperbranched polyester polymer, and erucamide are added to an...

Embodiment 3

[0092] In this embodiment, a reinforced polybutylene terephthalate composition is prepared from the following raw materials in parts by weight:

[0093]

[0094]

[0095] The preparation method of above-mentioned reinforced polybutylene terephthalate composition, comprises the following steps:

[0096] (1) After placing the polybutylene terephthalate A resin and the polybutylene terephthalate B resin at a temperature of 100° C. for 6 hours, then cooling, the cooled polybutylene terephthalate Butylene dicarboxylate A resin and polybutylene terephthalate B resin and the ethylene-octene copolymer graft glycidyl methacrylate, polytetrafluoroethylene resin, antioxidant CY, bis (2,4-dicumylphenyl) pentaerythritol diphosphite is added to the mixer for mixing, and the rotation speed of the mixer is 1000 rpm;

[0097] (2) The hollow glass microspheres, glycidyl POSS, monoalkoxy fatty acid titanate coupling agent, hyperbranched polyester polymer, and erucamide are added to anothe...

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Abstract

The invention relates to a reinforced polybutylene terephthalate composition and a preparation method thereof. The reinforced polybutylene terephthalate composition is prepared from the following rawmaterials: polybutylene terephthalate resin A, polybutylene terephthalate resin B, ethylene-octene copolymer grafted glycidyl methacrylate, hollow glass beads, polyhedral oligomeric silsesquioxane polymer, low dielectric constant glass fiber, a titanate coupling agent, polytetrafluoroethylene resin, a hyperbranched polyester polymer, erucyl amide, an antioxidant CY and bis(2, 4-diquylphenyl)pentaerythritol diphosphate. The reinforced polybutylene terephthalate composition has excellent mechanical properties and processability and a low dielectric constant, and can be applied to shells, cladding and protective materials and the like of 5G base stations, micro base station systems, data communication terminals, antennas and radio frequency modules.

Description

technical field [0001] The invention relates to the field of materials, in particular to a reinforced polybutylene terephthalate composition and a preparation method thereof. Background technique [0002] Dielectric materials, also known as dielectrics, are electrical insulating materials. According to performance, there are high dielectric materials and low dielectric materials. For low dielectric materials, with the rapid development of electronic information technology, electronic products are developing in the direction of lightweight, high performance and multifunctionality, and it is increasingly necessary to develop low dielectric constant ( D. k <3) Materials. At the same time, with the advent of the 5G era, the requirements for the transmission speed and loss of electronic signals are higher than those of 4G products. Usually, 4G products only require the dielectric constant of resin materials to be less than 3.7 (1GHz), while 5G products require The dielectr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L51/06C08L83/04C08L27/18C08L67/00C08K13/06C08K9/10C08K7/14C08K7/28C08K5/20C08K5/526C08K5/3492C08J5/04
CPCC08J5/043C08K13/06C08K9/10C08K7/14C08K7/28C08K5/20C08K5/526C08K5/3492C08J2367/02C08J2467/02C08J2451/06C08J2483/04C08J2427/18C08J2467/00
Inventor 王忠强卢健体丁佳
Owner GUANGDONG ALDEX NEW MATERIAL CO LTD
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