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Reinforced, toughened and heat-resistant PBT outdoor blending material and preparation method thereof

A technology of strengthening, toughening and heat resistance is applied in the field of reinforced, toughening and heat-resistant PBT outdoor blending materials and its preparation. capacitive effect

Pending Publication Date: 2020-05-01
LIMING VOCATIONAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In summary, the use of ABS to toughen PBT can improve PBT with obvious effect, but it limits the use of materials in outdoor fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A reinforced, toughened and heat-resistant PBT outdoor blending material, made according to the following raw materials by weight: 70 parts by weight of PBT; 30 parts by weight of ASA; 20 parts by weight of modified glass fiber; 5 parts by weight of styrene - Maleic anhydride binary copolymer (SMA); 0.2 parts by weight of tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester (Antioxidant 1010) and 0.06 parts by weight parts of dicumyl peroxide (DCP).

[0033] The preparation method of the PBT outdoor blending material that strengthens toughening and heat resistance in the above-described embodiment may further comprise the steps:

[0034] A. Modification of glass fiber: including the following steps:

[0035] 1) Material preparation: 6 parts of acetic acid, 0.3 parts of coupling agent A151 (vinyltriethoxysilane), 0.3 parts of ethanol, 20 parts of glass fiber, for use; 2) Coupling treatment: first use acetic acid to adjust the pH of the ethan...

Embodiment 2

[0041] A reinforced, toughened and heat-resistant PBT outdoor blending material, made according to the following raw materials in parts by weight: 80 parts by weight of PBT; 20 parts by weight of ASA; 30 parts by weight of modified glass fiber; 8 parts by weight of propylene Nitrile-butadiene-styrene copolymer grafted with glycidyl methacrylate (ABS-g-GMA); 0.5 parts by weight of tris[2.4-di-tert-butylphenyl]phosphite (Antioxidant 168) and 0.09 parts by weight of tert-butyl benzoyl peroxide (TBPB).

[0042] The preparation method of the PBT outdoor blending material that strengthens toughening heat-resistant in above-mentioned embodiment two, comprises the steps:

[0043] A. Modification of glass fiber: including the following steps:

[0044] 1) Material preparation: 10 parts of acetic acid, 0.5 parts of coupling agent A171 (vinyltrimethoxysilane), 0.5 parts of ethanol, 30 parts of glass fiber, for use; 2) Coupling treatment: first use acetic acid to adjust the pH of the etha...

Embodiment 3

[0050] A reinforced, toughened and heat-resistant PBT outdoor blending material, made according to the following raw materials in parts by weight: 75 parts by weight of PBT; 25 parts by weight of ASA; 25 parts by weight of glass fiber after coupling treatment; 5 parts by weight styrene-acrylonitrile-glycidyl methacrylate terpolymer (SAG); 0.4 parts by weight of tris[2.4-di-tert-butylphenyl]phosphite (168) and 0.07 parts by weight of diperoxide Cumene (DCP).

[0051] The preparation method of the PBT outdoor blending material that strengthens toughening and heat resistance in the above-described embodiment may further comprise the steps:

[0052] A. Modification of glass fiber: including the following steps:

[0053] 1) Material preparation: 8 parts of acetic acid, 0.4 parts of coupling agent A172 (vinyl tris(β-methoxyethoxy) silane), 0.4 part of ethanol, 25 parts of glass fiber, for use; 2) Coupling treatment: first Use acetic acid to adjust the pH of the ethanol solution to...

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PUM

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Abstract

The invention discloses a heat-resistant cracking-resistant PBT outdoor material and a preparation method thereof, and relates to a universal engineering plastic, wherein the reinforced, toughened andheat-resistant PBT outdoor blending material is prepared by carrying out melt blending on ASA, a compatilizer and PBT and adding modified glass fibers. A purpose of the invention is to overcome the defects of heat intolerance, low impact strength and the like easily generated in the outdoor use process of the PBT engineering material. According to the technical scheme, the heat-resistant cracking-resistant PBT outdoor material is prepared from the following components in parts by weight: 70 to 80 parts of PBT, 20 to 30 parts of ASA, 20 to 30 parts of modified glass fiber, 5 to 10 parts of a compatilizer, 0.1 to 0.5 part of an antioxidant and 0.06 to 0.09 part of an initiator. The preparation method comprises the following steps: (1) treating glass fibers with a coupling agent; (2) drying,weighing, and mixing; (3) carrying out a grafting reaction on the modified glass fiber and a PBT matrix resin; and (4) melting, crushing, and granulating. The PBT outdoor blending material prepared by the invention has good mechanical properties and good heat resistance, and the method is simple and feasible in process and easy to implement, and has important practical application value.

Description

technical field [0001] The invention relates to a reinforced, toughened and heat-resistant PBT outdoor blend material and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (PBT) is a semi-crystalline polymer with excellent performance. It has the characteristics of high strength, good electrical properties, stable size, good heat resistance, low water absorption and easy molding process. It is widely used Used in automobiles, electronic appliances, textiles, instruments and machinery manufacturing industries, it has become the fifth largest engineering plastics. However, PBT has high notch sensitivity, high molding shrinkage, and insufficient material toughness, which cannot meet the high mechanical performance requirements of engineering plastics. [0003] ABS (acrylonitrile-butadiene-styrene copolymer) is one of the most common toughening agents for PBT. It has obvious toughening effect and has been industrialized. However, due to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L51/04C08L35/06C08L51/00C08L25/14C08L51/06C08K13/06C08K9/06C08K7/14C08K5/14C08K5/134C08K5/526C08K5/13C08J5/08
CPCC08J5/08C08J2367/02C08J2425/14C08J2435/06C08J2451/00C08J2451/04C08J2451/06C08L67/02C08L2201/08C08L2205/03C08L51/04C08L35/06C08L51/003C08L25/14C08L51/06C08K13/06C08K9/06C08K7/14C08K5/14C08K5/1345C08K5/526C08K5/13
Inventor 陈婷林鸿裕
Owner LIMING VOCATIONAL UNIV
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