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LCP/PBT/PET ternary alloy material and preparation method thereof

A ternary alloy, liquid crystal polymer technology, applied in the field of polymer materials, can solve the problems of impact strength, toughness, heat resistance, low processing performance, poor product formability, rising production costs, etc., and achieve good dimensional stability. , low cost, low production cost effect

Inactive Publication Date: 2017-11-24
广东壹豪新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyethylene terephthalate (PET) is a semi-crystalline blend, and its crystallization rate is low. During the injection molding process, due to the incomplete crystallization of PET, mold sticking, difficult demoulding, and high top ( Uneven surface of the product), top white (whitening of the product) and other poor injection molding, resulting in poor formability, low temperature resistance, and low processing performance of the final product.
Currently, PP, PC and other resin plastics are mixed with PET to modify PET, but the compatibility of PET mixed with PP, PC, etc. is poor, and a large amount of compatibilizer or toughening agent needs to be added to improve the comprehensive performance, which increases the production cost, and the impact strength, toughness, heat resistance, processing performance and other properties are low, which cannot meet the needs of the current electronic appliances, office equipment, automobile decoration and other fields

Method used

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  • LCP/PBT/PET ternary alloy material and preparation method thereof
  • LCP/PBT/PET ternary alloy material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of LCP / PBT / PET ternary alloy material, this ternary alloy material comprises the raw material of following weight portion:

[0042] Liquid crystal polymer 10 parts

[0043] Polybutylene terephthalate 20 parts

[0044] 40 parts polyethylene terephthalate

[0045] 5 parts glass fiber

[0046] Compatibilizer 3 parts

[0047] Flame retardant 15 parts

[0048] Antioxidant 0.1 parts

[0049] Lubricant 0.2 parts

[0050] Modifier 1 part.

[0051] The liquid crystal polymer has a molecular weight of 5000 and a characteristic density of 1.45 g / cm 3 thermotropic liquid crystal polymers.

[0052] The compatibilizer is styrene-acrylonitrile-maleic anhydride copolymer.

[0053] The flame retardant is at least one of polyphenylphosphate, tris(α-chloroethyl)phosphate and tris(1,3-dichloro-2-propyl)phosphate.

[0054] The antioxidant is triethylene glycol bis-3-(3-tert-butyl-4-hydroxyl-5-methylphenyl) acrylate.

[0055] The lubricant is polyethylene wax.

[0056] The...

Embodiment 2

[0063] A kind of LCP / PBT / PET ternary alloy material, this ternary alloy material comprises the raw material of following weight portion:

[0064] Liquid crystal polymer 20 parts

[0065] 10 parts polybutylene terephthalate

[0066] 30 parts polyethylene terephthalate

[0067] 13 parts glass fiber

[0068] 6 parts of compatibilizer

[0069] Flame retardant 12 parts

[0070] Antioxidant 0.2 part

[0071] Lubricant 0.6 parts

[0072] Modifier 1.2 parts.

[0073] The liquid crystal polymer has a molecular weight of 25,000 and a characteristic density of 1.42 g / cm 3 thermotropic liquid crystal polymers.

[0074] The compatibilizer is ethylene-acrylic acid-butyl grafted glycidyl methacrylate.

[0075] The flame retardant is at least one of decabromodiphenylethane and 1,2-bis(tetrabromophthalimide)ethane.

[0076] The antioxidant is pentaerythritol bis-diphosphite bis(2,4-di-tert-butylphenyl) ester.

[0077] The lubricant is hydrogenated ethylenebisstearamide.

[0078] Th...

Embodiment 3

[0085] A kind of LCP / PBT / PET ternary alloy material, this ternary alloy material comprises the raw material of following weight portion:

[0086] Liquid crystal polymer 30 parts

[0087] Polybutylene terephthalate 30 parts

[0088] 10 parts polyethylene terephthalate

[0089] 22 parts glass fiber

[0090] Compatibilizer 9 parts

[0091] Flame retardant 9 parts

[0092] Antioxidant 0.3 parts

[0093] Lubricant 1 part

[0094] Modifier 1.5 parts.

[0095] The liquid crystal polymer has a molecular weight of 45,000 and a characteristic density of 1.40 g / cm 3 thermotropic liquid crystal polymers.

[0096] The compatibilizer is hydrogenated styrene-butadiene-styrene copolymer grafted with glycidyl methacrylate or styrene-acrylonitrile copolymer grafted with glycidyl methacrylate.

[0097] The flame retardant is at least one of sodium antimonate, brominated polystyrene and brominated epoxy resin.

[0098] The antioxidant is tetrakis[methyl-β-(3,5-di-tert-butyl-4-hydroxyphe...

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Abstract

The invention relates to the technical field of a high-molecular material, and more specifically relates to a LCP / PBT / PET ternary alloy material and a preparation method thereof. The LCP / PBT / PET ternary alloy material comprises the following raw materials in parts by weight: 10-40 parts of a liquid crystal polymer, 10-40 parts of polybutylene telephthalate, 10-40 parts of polyethylene glycol terephthalate, 5-40 parts of glass fiber, 3-15 parts of a compatilizer, 3-15 parts of a fire retardant, 0.1-0.5 parts of an anti-oxidant, 0.2-2 parts of a lubricant and 1-2 parts of a modifier. The ternary alloy material has the excellent mechanical properties of toughness, impact strength, tensile strength and bending strength, and has the advantages of good fireproof performance, good heat resistance, low water absorption, good size stability, high crystallization efficiency, good moulding performance, good processing performance, low cost, and high usage value.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an LCP / PBT / PET ternary alloy material and a preparation method thereof. Background technique [0002] Polyethylene terephthalate (PET) is a semi-crystalline blend, and its crystallization rate is low. During the injection molding process, due to the incomplete crystallization of PET, mold sticking, difficult demoulding, and high top ( The surface of the product is not flat), top white (the product appears whitening) and other poor injection molding, which makes the final product poor formability, low temperature resistance, low processing performance and other bad problems. Currently, PP, PC and other resin plastics are mixed with PET to modify PET, but the compatibility of PET mixed with PP, PC, etc. is poor, and a large amount of compatibilizer or toughening agent needs to be added to improve the comprehensive performance, which increases the production cost, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L101/12C08L23/06C08L35/06C08L51/00C08L83/04C08K13/04C08K7/14C08K5/134C08K7/00C08K3/34C08K5/544C08K3/24B29C47/92B29C48/92
CPCC08L67/02B29C48/92B29C2948/92704C08L101/12C08L2201/02C08L2201/08C08L2205/025C08L2205/035C08L2205/08C08L23/06C08L35/06C08K13/04C08K7/14C08K5/1345C08K7/00C08K3/34C08K5/544C08L51/06C08K5/03C08K5/526C08K5/20C08L51/006C08L51/003C08L83/04C08K3/24
Inventor 王强
Owner 广东壹豪新材料科技股份有限公司
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