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Weather-resistant white master batch, weather-resistant polyester material and preparation methods of weather-resistant white master batch and weather-resistant polyester material

A technology of white masterbatch and polyester materials, which is applied in the field of polyester materials, can solve the problems of improving the weather resistance of PET, and achieve the effects of good weather resistance, good thermodynamic properties and simple production process

Active Publication Date: 2012-06-13
NINGBO CHANGYANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing PET weather resistance needs to be improved, to provide a weather-resistant white masterbatch (may be referred to as color masterbatch), weather-resistant polyester material and its preparation method

Method used

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  • Weather-resistant white master batch, weather-resistant polyester material and preparation methods of weather-resistant white master batch and weather-resistant polyester material
  • Weather-resistant white master batch, weather-resistant polyester material and preparation methods of weather-resistant white master batch and weather-resistant polyester material
  • Weather-resistant white master batch, weather-resistant polyester material and preparation methods of weather-resistant white master batch and weather-resistant polyester material

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preparation example Construction

[0037] The preparation method of weather-resistant white masterbatch provided by the invention comprises the following steps:

[0038] (1) adding polyester chip, white pigment, photostabilizer and ultraviolet light absorber to the twin-screw extruder through loss-in-weight scale, after fully mixing, homogenizing and devolatilization, a molten mixture is obtained;

[0039] (2) The melt mixture obtained in step (1) is pressurized by a melt pump and filtered by a filter to obtain a melt;

[0040] (3) Stranding the molten material obtained in step (2), cooling it through a water tank, then passing it through a water eliminator and hot air drying to remove water continuously, cutting into pellets, and packaging to obtain the weather-resistant white masterbatch.

[0041] The processing temperature of each zone of the twin-screw extruder is 220-320° C., the rotation speed of the main engine is 400-800 rpm, and the aperture of the filter screen is 20-100 um. The water temperature of ...

Embodiment 1

[0047]In terms of parts by mass, 100 parts of Daguang PET polyester chips, 55 parts of rutile titanium dioxide, 1 part of poly(1-hydroxyethyl-2,2,6,6-tetramethyl-4-hydroxypiper Pyridine) succinate and 1 part of 2-(2'-hydroxyl-3'-isobutyl-5'-tert-butylphenyl)benzotriazole are added to the twin-screw extruder through a weight loss scale, and each zone is processed The temperature is 220-300°C, the speed of the main engine is 400rpm, and the filter mesh diameter is 50um. Through the shearing and mixing of the screw, the pigment and additives are uniformly dispersed in the resin, and then the weather-resistant PET white masterbatch A1 is obtained through granulation, drying, packaging and other processes.

Embodiment 2

[0049] In terms of parts by mass, 100 parts of Daguang PET polyester chips, 55 parts of rutile titanium dioxide, 1 part of poly(1-hydroxyethyl-2,2,6,6-tetramethyl-4-hydroxypiper Pyridine) succinate and 1 part of 2-(2H-benzotriazol-2-yl)-6-dodecyl-4-cresol are added to the twin-screw extruder through a weight loss scale, and the temperature in each zone of the process is 220 -300°C, the speed of the main engine is 400rpm, and the pore size of the filter screen is 50um. Through the shearing and mixing of the screw, the pigment and additives are uniformly dispersed in the resin, and then the PET weather-resistant white masterbatch A2 is obtained through granulation, drying, packaging and other processes.

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Abstract

The invention relates to the field of polyester materials, particularly relates to a weather-resistant white master batch, a weather-resistant polyester material and preparation methods of the weather-resistant white master batch and the weather-resistant polyester material. In order to improve the weather resistance of the traditional polyester, the invention provides the weather-resistant white master batch and the weather-resistant polyester material. The weather-resistant white master batch comprises a carrier, a white pigment, a light stabilizer and an ultraviolet absorbent, wherein the white pigment comprises primary particles with particle sizes of 0.1-0.5mu m. The polyester material comprises 5-30% of the weather-resistant white master batch. According to the invention, the weather-resistant white master batch comprises high-concentration white pigment, thereby having better weather resistance; and the weather-resistant polyester material comprising the white master batch also has better weather resistance. The invention also provides the preparation methods of the weather-resistant white master batch and the weather-resistant polyester material. The preparation methods are simple in production processes and easy to operate.

Description

technical field [0001] The invention relates to the field of polyester materials, in particular to a weather-resistant white masterbatch, a weather-resistant polyester material and a preparation method thereof. Background technique [0002] Existing polyester materials include PET, PBT and PEN, among which PET (polyethylene terephthalate) is a linear polyester polymer material and is the most commonly used polyester material. Because PET has excellent characteristics (heat resistance, chemical resistance, toughness, electrical insulation, safety, etc.) and is cheap, it is widely used as fibers, films, engineering plastics, polyester bottles, etc. If PET is used as a long-term outdoor material, weather resistance is a very important performance index. Traditional PET materials will turn yellow and age when used outdoors for more than 10 years, and the performance of the material will decline significantly. Therefore, it is difficult for traditional PET materials to meet the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/00C08L67/02C08K13/02C08K3/22C08J3/22B29B9/06B29C69/02B29C47/00B29C43/24B29C55/12
Inventor 不公告发明人
Owner NINGBO CHANGYANG TECH
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