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High-transparency ultraviolet light barrier polyester material and preparation method thereof

A polyester material and ultraviolet light technology, applied in the field of polyester materials, can solve the problems of affecting material transmittance, poor thermal stability, temperature sensitivity, etc., to reduce the risk of yellowing, avoid the risk of precipitation, and prolong the service life. Effect

Pending Publication Date: 2022-04-19
SHANGHAI KUMHOSUNNY JINSHAN PLASTICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Organic UV absorbers have high absorption efficiency, but poor thermal stability, are sensitive to the temperature during processing, and are prone to failure; another inorganic UV shielding agent has poor compatibility with the matrix, is easy to precipitate, and will seriously affect the material. The transmittance

Method used

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  • High-transparency ultraviolet light barrier polyester material and preparation method thereof
  • High-transparency ultraviolet light barrier polyester material and preparation method thereof
  • High-transparency ultraviolet light barrier polyester material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This example relates to a preparation method of a highly transparent ultraviolet light blocking polyester material. The composition of the polyester material is shown in Table 1. The preparation method includes the following steps:

[0029] (1) Prepare materials according to the components and parts by weight shown in Table 1:

[0030] Among them, the PETG resin is GN046 with a CHDM content of less than 50% from Eastman Company; the antioxidant is Irganox168; the lubricant is pentaerythritol stearate; the dispersant is C100 from Wuhan Hyperbranched Company; The multi-functional resin, the grade is LP2500; the special resin is PEN of Japan Teijin Company;

[0031] (2) Put the PETG resin, antioxidant, lubricant, dispersant, end-capping agent and PEN resin in the above (1) into a high-speed mixer according to the formula and stir them. In the machine, the temperature of the twin-screw extruder is controlled at 240-260°C. Under the conveying, shearing and mixing of the scr...

Embodiment 2

[0033] This example relates to a preparation method of a highly transparent ultraviolet light blocking polyester material. The composition of the polyester material is shown in Table 1. The preparation method includes the following steps:

[0034] (1) Prepare materials according to the components and parts by weight shown in Table 1:

[0035] Among them, the PETG resin is GN046 with a CHDM content of less than 50% from Eastman Company; the antioxidant is Irganox168; the lubricant is pentaerythritol stearate; the dispersant is C100 from Wuhan Hyperbranched Company; The multi-functional resin, the grade is LP2500; the special resin is PEN of Japan Teijin Company;

[0036] (2) Put the PETG resin, antioxidant, lubricant, dispersant, end-capping agent and PEN resin in the above (1) into a high-speed mixer according to the formula and stir them. In the machine, the temperature of the twin-screw extruder is controlled at 250-270°C. Under the conveying, shearing and mixing of the scr...

Embodiment 3

[0038] This example relates to a preparation method of a highly transparent ultraviolet light blocking polyester material. The composition of the polyester material is shown in Table 1. The preparation method includes the following steps:

[0039] (1) Prepare materials according to the components and parts by weight shown in Table 1:

[0040] Among them, the PETG resin is GN046 with a CHDM content of less than 50% from Eastman Company; the antioxidant is Irganox168; the lubricant is pentaerythritol stearate; the dispersant is C100 from Wuhan Hyperbranched Company; The multi-functional resin, the grade is LP2500; the special resin is PEI of Sabic Company in Japan;

[0041](2) Put the PETG resin, antioxidant, lubricant, dispersant, end-capping agent and PEI resin in the above (1) into a high-speed mixer according to the formula and stir, and after mixing evenly, send it to the twin-screw extrusion In the machine, the temperature of the twin-screw extruder is controlled at 240-2...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a high-transparency ultraviolet light barrier polyester material and a preparation method thereof. The composition comprises the following components in parts by weight: 77-94.1 parts of transparent polyester resin, 0.1-0.5 part of an antioxidant, 0.2-0.5 part of a lubricant, 0.5-1.5 parts of a dispersing agent, 0.1-0.5 part of an end-capping reagent and 5-20 parts of special resin. PETG with the CHDM content lower than 50% is selected as the transparent polyester resin; the special resin is selected from one or more of polyetherimide, polyethylene naphthalate, polyethylene sulfone and polyarylester. The polyester material prepared by the invention has high transmittance, can block the ultraviolet full wave band, improves the ultraviolet light stability of a transparent material, avoids the precipitation risk of an organic ultraviolet light absorber, and also avoids the defects of poor compatibility of an inorganic ultraviolet light absorber and influence on transmittance and physical properties; the development of the ultraviolet full-wave band barrier polyester material with high transmission and zero precipitation is really realized.

Description

technical field [0001] The invention belongs to the technical field of polyester materials, and relates to a highly transparent ultraviolet light blocking polyester material and a preparation method thereof. Background technique [0002] Ultraviolet rays can be divided into four regions according to different wavelengths. Short-wave ultraviolet is referred to as UVC, and the wavelength range is 200-280nm. Medium-wave ultraviolet is referred to as UVB, and the wavelength range is 280-320nm. There is also a shorter-wavelength vacuum ultraviolet ray, referred to as UVD, with a wavelength range of 100-200nm. Ultraviolet rays in nature mainly come from sunlight, and the amount of ultraviolet rays reaching the surface of the earth will also vary due to differences in penetrating ability in different bands. In terms of penetration ability, UVA>UVB>UVC>UVD, short-term ultraviolet radiation can sterilize and promote the absorption of calcium in the human body, but long-term...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L79/08C08K5/526C08K5/103
CPCC08L67/02C08L2201/10C08L2201/08C08K5/526C08K5/103C08L79/08
Inventor 于芳芳胡建建张超超周霆
Owner SHANGHAI KUMHOSUNNY JINSHAN PLASTICS CO LTD
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