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High-transparency TPU (Thermoplastic Polyurethane) film for high-speed rail laminating film and preparation method of TPU film
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A film and film technology, applied in the field of high-transparency TPU film and its preparation, can solve the problems of dizziness, dazzling, scene deformation, etc., and achieve the effect of reducing usage, improving transparency and mechanical properties, and reducing glare index
Inactive Publication Date: 2017-08-22
SUZHOU XIONGLIN NEW MATERIAL SCI & TECH CO LTD
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In addition, ordinary glass has a certain amount of light distortion, and the scene through the glass will be deformed. At the same time, the speed of the scene moving at high speed will be superimposed, causing dazzling and dizziness.
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Embodiment 1
[0036]A high-transparency TPU film for high-speed rail film, prepared by the following method:
[0040] ① Dry the components at 90°C for 8 hours according to the formula, and then mix them;
[0041] ②The mixed components are extruded through the extruder. The temperature of the solid conveying zone of the extruder is 260°C, the temperature of the material plasticizing zone is 180°C, and the temperature of the melt conveying zone is 320°C.
Embodiment 2
[0043] A high-transparency TPU film for high-speed rail film, prepared by the following method:
[0048] ① Dry the components at 110°C for 4 hours according to the formula, and then mix them;
[0049] ②The mixed components are extruded through the extruder. The temperature of the solid conveying zone of the extruder is 440°C, the temperature of the material plasticizing zone is 860°C, and the temperature of the melt conveying zone is 420°C.
Embodiment 3
[0051] A high-transparency TPU film for high-speed rail film, prepared by the following method:
[0056] ① Dry the components at 100°C for 6 hours according to the formula, and then mix them;
[0057] ②The mixed components are extruded through the extruder. The temperature of the solid conveying zone of the extruder is 350°C, the temperature of the material plasticizing zone is 520°C, and the temperature of the melt conveying zone is 370°C.
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Abstract
The invention relates to a high-transparency TPU (ThermoplasticPolyurethane) film for a high-speed rail laminating film and a preparation method of the TPU film. The TPU film comprises the following raw materials in parts by weight: 10-15 parts of alicyclic diisocyanate, 7-13 parts of toluene diisocynate, 20-30 parts of polycarbonatepolyol, 20-30 parts of polycaprolactonepolyol, 1-4 parts of a chain extender, 0.2-0.8 part of an antifoaming agent, 2-4 parts of tinantimonyoxide, 0.4-1.6 parts of galliumzincoxide and 0.5-1.5 parts of polytetrafluoroethylene. The TPU film disclosed by the invention has the light transmittance of 98% or higher, the glare index of lower than 10 and the Shorehardness of 80-100A and can achieve the effects of effectively reinforcing the train window, optimizing riding experience and improving the safety.
Description
technical field [0001] The invention relates to the technical field of synthetic materials, in particular to a highly transparent TPU film used for high-speed rail film sticking and a preparation method thereof. Background technique [0002] TPU (Thermoplasticpolyyrethane, thermoplasticpolyurethane) is a new type of organic polymer synthetic material with excellent properties; such as wear resistance and resilience are better than ordinary polyurethane and PVC, aging resistance is better than rubber, is a substitute for PVC The ideal material for PU and PU is an internationally recognized new polymer material. [0003] We all know that the airport has bird removal devices and specialized personnel to ensure flight safety. When a small bird hits a high-speed aircraft, the instantaneous impact force is enough to shatter the windshield of the aircraft, posing a major danger. High-speed rail, as a means of public transportation that is currently second only to airplanes in spe...
Claims
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