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Polyurethane resin for solvent-free crease-free microfiber mirror-surface synthetic leather and preparation method and application of polyurethane resin
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A polyurethane resin, crease-free technology, used in textiles and papermaking, to achieve good flexibility, improved muscle formation, and excellent smoothness
Inactive Publication Date: 2016-10-12
HEFEI ANLI POLYURETHANE NEW MATERIAL
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Problems solved by technology
However, in the field of shoe leather, especially the non-solvent type non-crease microfiber mirror synthetic leather applied to sports shoes has not been reported yet.
Method used
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Embodiment 1
[0041] A solvent-free polyurethane resin for crease-free microfiber mirror surface synthetic leather, the resin is composed of hydroxyl component A and isocyanate component B:
[0042] Described A component is made up of the raw material of following weight part:
[0065] A solvent-free polyurethane resin for crease-free microfiber mirror surface synthetic leather, the resin is composed of hydroxyl component A and isocyanate component B:
[0066] Described A component is made up of the raw material of following weight part:
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Abstract
The invention discloses a polyurethane resin for solvent-free crease-free microfiber mirror-surface synthetic leather. The polyurethane resin is prepared from a component A and a component B in a mass ratio of 2:1-1:2 by means of stirring and mixing, wherein the component A comprises 80-95 parts of polytetrahydrofuran glycol, 5-15 parts of chain extenders, 0.01-0.5 part of catalysts, 0.5-2.0 parts of light / heat stabilizers, 0.01-0.2 part of defoaming agents and 0.1-2.0 parts of solvent-free color paste, and the component B comprises 40-50 parts of polytetrahydrofuran glycol, 50-60 parts of isocyanate, 0.001-0.1 part of phosphoric acid and 0.01-05 part of catalysts. The invention further provides a preparation method and application of the polyurethane resin. The solvent-free crease-free microfiber mirror-surface synthetic leather prepared by the preparation method is capable of resisting normal-temperature flexing for 100 thousand times in terms of physical performance and resistant to the temperature as low as -10 DEG C and remains uncracked for 80 thousand times at -10 DEG C.
Description
technical field [0001] The invention belongs to the technical field of chemical products and preparation methods thereof, and relates to a solvent-free polyurethane resin for crease-free microfiber mirror surface synthetic leather, and also relates to a preparation method and application of the resin. Background technique [0002] In the polyurethane industry, the artificial leather produced with PU resin and base cloth is called PU synthetic leather, or synthetic leather for short. After continuous research and development, the performance of PU synthetic leather is getting closer and closer to that of natural leather, and some properties even exceed natural leather, reaching the level that is indistinguishable from natural leather. PU synthetic leather also has the advantages of rich colors and various patterns, and the price is cheaper than leather fabrics, so it is very popular among consumers. PU synthetic leather has grown rapidly in terms of product quality, variety,...
Claims
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Application Information
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