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A kind of anti-ultraviolet film for isolation clothing and preparation method thereof

A technology of anti-ultraviolet and isolation clothing, which is applied in the field of medical polymers, can solve the problems that ordinary films do not have the adhesion of isolation clothing fibers, and isolation clothing cannot prevent ultraviolet damage, etc., and achieve the effect of good compatibility

Active Publication Date: 2016-08-24
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of materials, ordinary gowns can only be treated aseptically, and the gown itself cannot prevent the damage of ultraviolet rays to the human body. This is an important problem that medical gowns need to solve.
Ordinary films do not have adhesion to the fibers of isolation gowns, which is another important problem that medical isolation gown films need to solve

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Crystalline PET homopolymer with a melting point of 260°C and TiO with a particle size of 600-800nm 2 Mix with cycloolefin copolymer at a content ratio of 64wt%, 1wt%, and 35wt%, as the core layer raw material; the mixture is pre-crystallized and dried in a vacuum drum, and then enters a single-screw extruder for melt extrusion at 265°C , the extruded molten mixture enters the die head through the pre-filter, metering pump, and main filter.

[0023] The low-melting point amorphous polyester and EMA copolymer (purchased from: DuPont Company) modified by nano-sodium silicate with a melting point of 200 °C and a particle size of 100 nm were mixed at a content ratio of 90 wt % and 10 wt %, as the upper and lower Surface layer raw materials; then, put the mixture into a twin-screw extruder, and melt-extrude the mixture at a temperature of 220°C. The extruded mixture in the molten state is removed by a vacuum device installed at the twin-screw extruder to remove moisture and...

Embodiment 2

[0028] Crystalline PET homopolymer with a melting point of 258°C, TiO with a particle size of 800-1000nm 2 And the cyclic olefin copolymer is mixed according to the content ratio of 70wt%, 15wt%, and 15wt%, as the core layer raw material; after the mixture is pre-crystallized and dried in a vacuum drum, it enters a single-screw extruder and is melt-extruded at 270 ° C , the extruded molten mixture enters the die head through the pre-filter, metering pump, and main filter.

[0029] The low-melting point amorphous polyester and EMA copolymer modified by nano-silica with a melting point of 200°C and a particle size of 200nm are mixed at a content ratio of 70wt% and 30wt%; then, the mixture is put into a twin-screw extruder , the mixture was melt-extruded at 240 °C. The extruded mixture in the molten state is removed by a vacuum device installed at the twin-screw extruder to remove moisture and oligomers, and then enters the die through a pre-filter, a metering pump, and a main f...

Embodiment 3

[0034] TiO with a melting point of 260°C crystalline PET homopolymer and a particle size of 600-1000nm 2 And the cycloolefin copolymer is mixed according to the content ratio of 65wt%, 30%, 5wt%, as the core layer raw material; after the mixture is pre-crystallized and dried in a vacuum drum, it enters a single-screw extruder and is melt-extruded at 270 ° C , the extruded molten mixture enters the die head through the pre-filter, metering pump, and main filter.

[0035] The low melting point amorphous polyester and EMA copolymer modified by nano silicon dioxide with a melting point of 200°C and a particle size of 200nm are mixed at a content ratio of 50wt% and 50wt% as raw materials for the upper and lower surface layers; then the mixture is placed into a twin-screw extruder, and the mixture was melt-extruded at 245°C. The extruded mixture in the molten state is removed by a vacuum device installed at the twin-screw extruder to remove moisture and oligomers, and then enters t...

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Abstract

The invention discloses an ultraviolet-resistant thin film for isolation clothes. The ultraviolet-resistant thin film comprises an upper surface layer, a core layer and a lower surface layer, wherein the upper surface layer consists of nano inorganic substance-modified low-melting point amorphous polyester and an EMA (Ethyl Methacrylate) copolymer; the core layer consists of a crystalline PET (Polyethylene Terephthalate) homopolymer, titanium oxide and a cycloolefin copolymer; the lower surface layer consists of nano inorganic substance-modified low-melting point amorphous polyester and an EMA copolymer; the upper surface layer and the lower surface layer are co-extruded and compounded on the upper surface and the lower surface of the core layer. The ultraviolet-resistant thin film disclosed by the invention not only has ultra-high ultraviolet resistant characteristic of 300-400 nm, but also has the advantage of good thermal viscosity, so that the isolation clothes have the characteristic of strong ultraviolet resistance.

Description

technical field [0001] The invention belongs to the technical field of medical polymers, and in particular relates to an anti-ultraviolet film for isolation clothing and a preparation method thereof. Background technique [0002] At present, with the rapid development of my country's medical industry, doctors, nurses, and medical researchers are gradually paying attention to their own safety, and the use of medical isolation gowns is increasing rapidly, especially in environments that require ultraviolet disinfection such as operations and experiments. The demand for isolation gowns has increased rapidly. However, due to the limitation of materials, ordinary gowns can only be treated aseptically, and gowns themselves cannot prevent the damage of ultraviolet rays to the human body. This is an important problem that medical gowns need to solve. Ordinary films do not have adhesion to gown fibers, which is another important problem that medical gown films need to solve. Conten...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/36B32B27/30B32B33/00B29C69/02B29C47/06B29C55/14B29L7/00
CPCB29C48/18B29C55/14B29C69/02B29L2007/00B32B7/08B32B27/08B32B27/18B32B27/36B32B33/00
Inventor 杨金玲陆楠宋文延钟宁黄涛
Owner SHANDONG UNIV
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