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High-rigidity high-abrasion-resistance PPO/sPS carbon fiber reinforced composite alloy material and preparation method thereof

A technology for strengthening composite and alloy materials, which is applied in the field of composite alloy materials, can solve the problems of not being able to effectively improve the rigidity of PPO/PS alloys, not being able to compound PPO resins, and low-density PPO toughness, so as to achieve easy compatibility and low retention Density, the effect of improving wear resistance

Inactive Publication Date: 2019-05-31
GUANGDONG GUOLI SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The chemical name is polyphenylene ether, referred to as PPO. It is a thermoplastic resin formed by oxidative coupling polymerization of 2,6-disubstituted phenol. It is generally in the form of a khaki powder. The structural molecule of PPO contains benzene rings, and the benzene rings have better However, it is precisely because of the strong rigidity of the benzene ring that cracks are likely to occur when PPO is applied, which affects the application of PPO as a high-rigidity material. At present, PPO resin is improved by modifying PPO resin. properties, one of which is to modify the PPO resin by alloying the PPO resin
[0003] In the market, the compatible blending of PPO and polystyrene (PS) in a wide composition range is used to prepare PPO / PS alloys. The PS has the characteristics of low density and easy molding, which improves the problem of poor toughness of PPO. ; However, due to the insufficient rigidity of PS, the rigidity of the PPO / PS alloy cannot be effectively improved.
Syndiotactic polystyrene (sPS) materials have appeared in the prior art. sPS retains the advantages of low density and easy molding of PS, and has crystallization properties, which can improve the rigidity of materials composited with it. However, the compatibility of sPS Lower than PS and sPS is more brittle, it cannot be well compounded with PPO resin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Provide a high rigidity and high wear resistance PPO / sPS carbon fiber reinforced composite alloy material, including the following components in weight percentage: PPO resin 40%, α crystal form sPS resin 30%, syndiotactic polypropylene 15%, reinforced glass fiber 6% 、TiCl 4 +Al(C 2 h 5 ) 3 Catalyst 0.5%, initiator 0.5%, lubricant 3%, antioxidant 5%.

[0036] In this embodiment, the viscosity of the PPO resin is 0.2-0.5 dL / g to facilitate the molding of the PPO.

[0037] In this embodiment, the molecular weight of the syndiotactic polypropylene is 9000-10000, so as to form a certain length of carbon chain molecules.

[0038] In this embodiment, the reinforced glass fibers are medium-alkali reinforced glass fibers.

[0039] In this embodiment, the initiator is potassium persulfate, which has better temperature resistance and is suitable for high-temperature PPO resins.

[0040] In this embodiment, the lubricant is PEG-100 stearate, and the antioxidant is a complex m...

Embodiment 2

[0049] Provide a high rigidity and high wear resistance PPO / sPS carbon fiber reinforced composite alloy material, including the following components in weight percentage: PPO resin 60%, α crystal form sPS resin 15%, syndiotactic polypropylene 8%, reinforced glass fiber 8% 、TiCl 4 +Al(C 2 h 5 ) 3 Catalyst 0.5%, initiator 0.5%, lubricant 3%, antioxidant 5%.

[0050]In this embodiment, the viscosity of the PPO resin is 0.2-0.5 dL / g to facilitate the molding of the PPO.

[0051] In this embodiment, the molecular weight of the syndiotactic polypropylene is 9000-10000, so as to form a certain length of carbon chain molecules.

[0052] In this embodiment, the reinforced glass fibers are medium-alkali reinforced glass fibers.

[0053] In this embodiment, the initiator is potassium persulfate, which has better temperature resistance and is suitable for high-temperature PPO resins.

[0054] In this embodiment, the lubricant is PEG-100 stearate, and the antioxidant is a complex mix...

Embodiment 3

[0063] Provide a high rigidity and high wear resistance PPO / sPS carbon fiber reinforced composite alloy material, including the following components in weight percentage: PPO resin 50%, α crystal form sPS resin 23.4%, syndiotactic polypropylene 12%, reinforced glass fiber 8% 、TiCl 4 +Al(C 2 h 5 ) 3 Catalyst 0.3%, initiator 0.3%, lubricant 2%, antioxidant 4%.

[0064] In this embodiment, the viscosity of the PPO resin is 0.2-0.5 dL / g to facilitate the molding of the PPO.

[0065] In this embodiment, the molecular weight of the syndiotactic polypropylene is 9000-10000, so as to form a certain length of carbon chain molecules.

[0066] In this embodiment, the reinforced glass fibers are medium-alkali reinforced glass fibers.

[0067] In this embodiment, the initiator is potassium persulfate, which has better temperature resistance and is suitable for high-temperature PPO resins.

[0068] In this embodiment, the lubricant is PEG-100 stearate, and the antioxidant is a complex...

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Abstract

The invention relates to the technical field of composite alloy materials, in particular to a high-rigidity high-abrasion-resistance PPO / sPS carbon fiber reinforced composite alloy material and a preparation method thereof. The composite alloy material is prepared from, by weight, 40-60% of PPO resin, 15-30% of alpha-crystal-form sPS resin, 8-15% of syndiotactic polypropylene, 5-10% of reinforcedglass fibers, 0.1-0.5% of a TiCl4+Al(C2H5)3 catalyst, 0.1-0.5% of an initiator, 1-3% of a lubricating agent and 2-5% of an antioxidant. The composite alloy material has advantages of high rigidity andhigh abrasion resistance. The preparation method of the composite alloy material includes that hydroxyl-terminated PPO resin and a cross-linked material of alpha-crystal-form sPS resin and syndiotactic polypropylene are prepared respectively and then subjected to combined screw granulating to prepare the composite alloy material.

Description

technical field [0001] The invention relates to the technical field of composite alloy materials, in particular to a high rigidity and high wear resistance PPO / sPS carbon fiber reinforced composite alloy material and a preparation method thereof. Background technique [0002] The chemical name is polyphenylene ether, referred to as PPO. It is a thermoplastic resin formed by oxidative coupling polymerization of 2,6-disubstituted phenol. It is generally in the form of a khaki powder. The structural molecule of PPO contains benzene rings, and the benzene rings have better However, it is precisely because of the strong rigidity of the benzene ring that cracks are likely to occur when PPO is applied, which affects the application of PPO as a high-rigidity material. At present, PPO resin is improved by modifying PPO resin. One of them is to modify the PPO resin by alloying the PPO resin. [0003] In the market, the compatible blending of PPO and polystyrene (PS) in a wide composi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/12C08L25/06C08L23/12C08K13/04C08K7/14C08K5/18C08J5/04
Inventor 罗文平乔志龙
Owner GUANGDONG GUOLI SCI & TECH CO LTD
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