Photochromic thermoplastic polyurethane elastomer material for waterproof and moisture-permeable film, and preparation method thereof
Active Publication Date: 2020-12-08
SHANDONG INOV POLYURETHANE
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Chinese patent CN105693992A discloses a bio-based waterproof and moisture-permeable thermoplastic polyurethane resin and its preparation method. The raw materials used are expensive, and the current penetration rate in the market is not high.
Method used
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Embodiment 1
[0028] Raw materials and their mass parts are as follows:
[0029]
[0030] (1) After mixing polybutylene adipate diol, PEG, MDI-100, BDO and organic bismuth catalyst CB83, add it to the twin-screw extruder system through a pouring machine.
[0031] (2) Add PM2ClBP-MTSC and acrylic modified polyester resin into the twin-screw extruder system through the feeding perfusion system, and carry out polymerization reaction at 200°C.
[0032] (3) Then the melted polymer is pelletized underwater and dried to obtain thermoplastic polyurethane elastomer material particles for waterproof and moisture-permeable films.
[0033] (4) A polyurethane elastomer film is then obtained by extrusion casting.
Embodiment 2
[0035] Raw materials and their mass parts are as follows:
[0036]
[0037] (1) Mix polyhexamethylene adipate diol, PEG, MDI-100, BDO, organic bismuth catalyst CB83 and add it to the twin-screw extruder system through a pouring machine.
[0038] (2) Add DP3ClBP-PSC and methacrylic acid to the twin-screw extruder system through the feeding perfusion system, and carry out polymerization reaction at 140°C.
[0039] (3) Then the melted polymer is pelletized underwater and dried to obtain thermoplastic polyurethane elastomer material particles for waterproof and moisture-permeable films.
[0040] (4) A polyurethane elastomer film is then obtained by extrusion casting.
Embodiment 3
[0042] Raw materials and their mass parts are as follows:
[0043]
[0044] (1) After mixing polyethylene adipate glycol, PPG, MDI-100, BDO and organic bismuth catalyst CB83, add it to the twin-screw extruder system through a pouring machine.
[0045] (2) Add DP3,4ClBP-ETSC and acrylic acid-modified starch into the twin-screw extruder system through the feeding perfusion system, and carry out polymerization reaction at 240°C.
[0046] (3) Then the melted polymer is pelletized underwater and dried to obtain thermoplastic polyurethane elastomer material particles for waterproof and moisture-permeable films.
[0047] (4) A polyurethane elastomer film is then obtained by extrusion casting.
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Abstract
The invention belongs to the technical field of thermoplastic polyurethane elastomers, and particularly relates to a photochromic thermoplastic polyurethane elastomer material for a waterproof and moisture-permeable film, and a preparation method thereof. The material is prepared from, by weight, 55-65 parts of polymer diol, 25-35 parts of diisocyanate, 7-12 parts of a chain extender, 0.01-0.03 part of a catalyst, 0.1-2 part of a photosensitive auxiliary agent, and 1-10 parts of a functional filler. The photochromic thermoplastic polyurethane elastomer material for the waterproof and moisture-permeable film has excellent mechanical properties, the waterproof and moisture-permeable rate of the prepared film is greater than 10000 g/m<2>/24h, the hydrostatic pressure resistance of the prepared film is greater than 10000 mmH2O, the film can be changed from colorless to colored under the irradiation of ultraviolet rays with certain wavelength, and then the film is changed from colored to colorless after being irradiated by visible light. The material can be used as a functional film material in the fields of clothing, shoe material bags and suitcases and the like, and has wide application prospects.
Description
technical field [0001] The invention belongs to the technical field of thermoplastic polyurethane elastomers, and in particular relates to a thermoplastic polyurethane elastomer material for a photosensitive discoloration waterproof and moisture-permeable film and a preparation method thereof. Background technique [0002] Thermoplastic polyurethane elastomer (TPU) has excellent characteristics such as high strength, good wear resistance, good elasticity, weather resistance, processing, etc., and has excellent properties such as waterproof and moisture permeability, windproof, cold protection, antibacterial, and UV resistance. The film made of TPU not only has the characteristics of wear resistance, good flexibility and high elasticity, but also has excellent waterproof, moisture permeable, breathable, windproof and thermal insulation properties. It is widely used in daily necessities, toys and decorative materials, especially in the fields of textiles, garments and shoe mat...
Claims
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Application Information
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