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Polytrimethylene terephthalate toughening weather-proof master batch

A polytrimethylene terephthalate and weather-resistant masterbatch technology, which is applied in the field of polytrimethylene terephthalate toughened weather-resistant masterbatch, can solve the problems of easy aging, high notch sensitivity, and low notch impact strength, and achieve Excellent impact resistance and weather resistance, the effect of improving mechanical strength

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

However, unmodified poly(trimethylene terephthalate) has the defects of low notched impact strength, high notch sensitivity, and easy aging, which will greatly limit its application in various fields.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A poly(trimethylene terephthalate) toughened and weather-resistant masterbatch, the components of which are proportioned by mass percentage: poly(trimethylene terephthalate) 28%, glass fiber 25%, ethylene-octene copolymer grafted with maleate 30% acid anhydride, 10% benzotriazole ultraviolet absorber, 4% bismaleimide, 0.5% antioxidant, 2.5% modified ethylene bis fatty acid amide, the glass fiber is silane-coupled on the surface Alkali-free glass fibers modified with agent KH550, with an average length of 50-200 μm, an average diameter of 5-25 μm, and an aspect ratio of 10-30. The antioxidant is hindered phenol with a mass ratio of 1:1 A compound of antioxidant 1010 and phosphite antioxidant 168.

[0017] Preparation method: Weigh each component according to the weight ratio, and add them to a medium-speed mixer respectively, stir for 5-15 minutes, and discharge the material into a twin-screw extruder after mixing evenly. After being melted and kneaded, extruded and gra...

Embodiment 2

[0019] A poly(trimethylene terephthalate) toughened weather-resistant masterbatch, the components of which are proportioned by mass percentage: polytrimethylene terephthalate 46%, glass fiber 20%, styrene-ethylene-butylene-styrene Block copolymer grafted maleic anhydride 20%, benzophenone UV absorber 10%, N-phenylmaleimide 2%, antioxidant 0.5%, modified ethylene bis fatty acid amide 1.5% , the glass fiber is an alkali-free glass fiber whose surface is modified by a silane coupling agent KH550, with an average length of 50-200 μm, an average diameter of 5-25 μm, and an aspect ratio of 10-30. The oxygen agent is a compound of hindered phenolic antioxidant 1010 and phosphite antioxidant 168 with a mass ratio of 1:1.

[0020] Preparation method: Weigh each component according to the weight ratio, and add them to a medium-speed mixer respectively, stir for 5-15 minutes, and discharge the material into a twin-screw extruder after mixing evenly. After being melted and kneaded, extru...

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Abstract

The invention discloses a polytrimethylene terephthalate toughening weather-proof master batch. The master batch comprises the following ingredients, by weight, 20%-50% of carrier resins, 15%-40% of glass fibers, 20%-30% of elastomer graft, 10%-15% of ultraviolet ray stabilizing agents, 2%-6% of heat resistant agents, 0.1%-1% of anti-oxidants and 0.5%-3% of dispersants. The elastomer graft is one selected from ethylene-octylene copolymer grafting maleic anhydride, styrene-ethylene-butylene-styrene segmented copolymer grafting maleic anhydride, ethylene-octylene copolymer grafting glycidyl methacrylate. The beneficial effects are that the polytrimethylene terephthalate toughening weather-proof master batch has characteristics of environmental protection, no pollution, high dispersion, high impact resistance, high heat resistance, high weather resistance and the like; when the master batch is added in PTT production, excellent impact resistance and weather resistance are achieved, and the mechanical strength, the appearance quality, the chemical resistance and the like of a product can be raised obviously.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a toughened and weather-resistant masterbatch of polypropylene terephthalate. Background technique [0002] Polytrimethylene terephthalate (PTT) is a promising new type of polyester polymer material produced by polycondensation of terephthalic acid and 1,3-propylene glycol. Polypropylene terephthalate is a semi-crystalline high polymer with high melting temperature and glass transition temperature. It has good wear resistance, heat resistance and chemical resistance. It is widely used in synthetic fibers, film and engineering plastics and other fields. However, unmodified poly(trimethylene terephthalate) has the defects of low notched impact strength, high notch sensitivity, and easy aging, which will greatly limit its application in various fields. Contents of the invention [0003] The purpose of the present invention is to provide a poly(trimethylene terephthalat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L51/06C08L51/00C08K13/06C08K9/06C08K7/14C08J3/22
Inventor 不公告发明人
Owner QINGDAO XINZHAN PLASTIC
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