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PTT/inorganic particle blend and preparation method therefor

A technology of inorganic particles and blends, which is applied in the field of PTT/inorganic particle blends and its preparation, can solve the problems of low dimensional stability, poor heat resistance, and low strength, and achieve good dimensional stability and low cost. Low, adaptable effect

Inactive Publication Date: 2015-08-26
QINGDAO XINZHAN PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polytrimethylene terephthalate (PTT), as a new type of polyester polymer material with excellent comprehensive properties, has been widely used in the fields of fibers, films, engineering plastics, etc., but PTT has poor heat resistance when used alone , low dimensional stability and low strength, which limit its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A PTT / inorganic particle blend whose components are proportioned by mass percentage: PTT 78%, inorganic particles 15%, polyethylene glycol 3%, fatty acid polyethylene glycol ester 2%, light stabilizer 1.5% , Antioxidant 1010 0.1%, pentaerythritol stearate 0.4%, the PTT is a polytrimethylene terephthalate with an intrinsic viscosity of 0.7 to 1.2dL / g, and the inorganic particles are surface coupled with 2% silane The light stabilizer is a compound of hindered amine high molecular weight light stabilizer GW-944Z and GW-622 with a mass ratio of 1:1.

[0016] Preparation method: Weigh the components according to the weight ratio, and add them to the high-speed mixer respectively, and stir them together for 3 to 5 minutes. After the mixture is uniform, the materials are discharged and added to the twin-screw extruder at a temperature of 180°C to 260°C After melting, mixing, extruding, cooling and granulating, and drying, a PTT / inorganic particle blend of the present invention i...

Embodiment 2

[0018] A PTT / inorganic particle blend, the components of which are proportioned by mass percentage: PTT 85%, inorganic particles 10%, polyethylene glycol 2%, glycerol monostearate 2%, light stabilizer 0.5%, 0.2% of antioxidant 1076 and antioxidant 168, 0.3% pentaerythritol stearate, the PTT is polytrimethylene terephthalate with an intrinsic viscosity of 0.7 to 1.2 dL / g, Inorganic particles are alumina nanoparticles whose surface is modified by 2% silane coupling agent and have a particle size of 30-50nm. The light stabilizer is a hindered amine high molecular weight light stabilizer GW-944Z with a mass ratio of 1:1 Compound with GW-622.

[0019] Preparation method: Weigh the components according to the weight ratio, and add them to the high-speed mixer respectively, and stir them together for 3 to 5 minutes. After the mixture is uniform, the materials are discharged and added to the twin-screw extruder at a temperature of 180°C to 260°C After melting, mixing, extruding, cooling...

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PUM

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Abstract

The invention discloses a PTT / inorganic particle blend and a preparation method therefor. The PTT / inorganic particle blend comprises the following ingredients, by weight, 75%-90% of PTT, 5%-15% of inorganic particles, 2%-5% of polyethylene glycol, 0.5%-2% of antistatic agent, 0.5%-2% of light stabilizing agents, 0.1%-0.5% of anti-oxidants and 0.1%-1% of lubricants. The inorganic particles are alumina nanoparticles with surfaces modified by 2% of silane coupling agents and with a particle size of 30-50 nanometers. The antistatic agent is one selected from fatty acid polyethylene glycol ester, polyethylene glycol alkyl ether, N,N-polyethylene glycol alkylamine and glycerol monostearate. The beneficial effects are that the PTT / inorganic particle blend has excellent mechanical properties and heat resistance, the antistatic effects are good, the aging resistance is high, the size stability is good, the adaptability is high, the cost is low, and popularization is easy.

Description

Technical field [0001] The invention relates to the technical field of polymer materials, in particular to a PTT / inorganic particle blend and a preparation method thereof. Background technique [0002] Polytrimethylene terephthalate (PTT), as a new polyester polymer material with excellent comprehensive properties, has been widely used in the fields of fiber, film, engineering plastics, etc., but PTT alone has poor heat resistance , The problems of low dimensional stability and low strength limit its application. Blending inorganic particles with PTT polyester can obtain composite materials with high strength, high rigidity and high heat resistance, and can also reduce production costs. It has very considerable application prospects and practical value. Summary of the invention [0003] The purpose of the present invention is to provide a PTT / inorganic particle blend with high strength, good antistatic properties and strong aging resistance and a preparation method thereof. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L71/08C08K13/06C08K3/22
Inventor 不公告发明人
Owner QINGDAO XINZHAN PLASTIC
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