A kind of polyurethane material based on polydodecanediol adipate polyol
A polydodecane adipate, polyurethane material technology, applied in the field of polyurethane materials, can solve the problems affecting the performance of the hydrolysis resistance agent, uneven distribution of the hydrolysis resistance agent, high price of the hydrolysis resistance agent, etc. Strength and abrasion resistance, not easy to hydrolyze, and prolong the service life
Active Publication Date: 2017-01-25
XUCHUAN CHEM SUZHOU
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Problems solved by technology
However, the high price of the hydrolysis-resistant agent limits its scope of use; and the hydrolysis-resistant agent will migrate to the surface of the polyurethane sole, and the hydrolysis-resistant agent is unevenly distributed in the polyurethane sole, which affects the performance of the hydrolysis-resistant agent
Method used
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Embodiment
[0024] 1. The preparation of polyester polyol can adopt conventional polyester polyol preparation method. In this embodiment, nitrogen depressurization method is used for preparation.
[0025] The preparation process of the polydodecanediol adipate polyol that the number average molecular weight is 2000:
[0026] Add 200g of adipic acid and 300g of dodecanediol to the reaction kettle in turn, stir, raise the temperature to 135-140°C, keep the temperature constant for 1 hour, and stabilize the dehydration rate (through the rectification tower, the top temperature is kept <102°C) Continue to raise the temperature to 180°C, switch nitrogen gas from the lower part of the reactor, and gradually increase the amount of nitrogen gas to strengthen dehydration. Raise the temperature to 225±5°C and keep the temperature constant for 1 hour, then add the catalyst and start vacuuming to carry out transesterification, start timing from the vacuuming, after 4 hours, take a sample every 2 hour...
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The invention discloses a polyurethane material based on poly(dodecanediol adipate) polyol. The polyurethane material comprises an A component and a B component; wherein the A component comprises polyester polyol, a chain extending agent, a catalyst, a foaming agent, and a foam stabilizer; the polyester polyol is composed of poly(dodecanediol adipate) polyol and polyethylene-1,4-buthylene adipate polyol, and the B component is an isocyanate prepolymer formed by carrying out reactions between isocyanate and poly(dodecanediol adipate) polyol. The shoe sole made of the polyurethane material based on poly(dodecanediol adipate) polyol has an anti-wear performance, high strength, and a strong anti-hydrolysis performance, the problem that a shoe sole made of a polyurethane material has a bad anti-hydrolysis performance is solved, the prepared shoe sole is not easy to hydrolyze in damp environment, and thus the service life of shoe sole is effectively prolonged.
Description
technical field [0001] The invention belongs to the field of polyurethane materials, in particular to a polyurethane material based on polydodecanediol adipate polyol, which can be used to produce shoe soles. Background technique [0002] As a new multifunctional polymer material, polyurethane is a high-tech, high-performance, and high-value-added product. It occupies an important position in the material industry and has developed into one of the world's six major synthetic materials. In many polyurethane branch fields (such as foam, elastomer, coating, adhesive, fiber, etc.), microcellular polyurethane elastomer is a new type of material between foam and elastomer, and has good mechanical properties of elastomer Compared with ordinary rubber, it has the mechanical properties of high strength, good toughness, light weight, smooth transmission of compressive stress, excellent oil resistance and fatigue resistance. Among them, the most prominent feature is that it has excell...
Claims
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IPC IPC(8): C08G18/42C08G18/32C08J9/08C08J9/10A43B13/04C08G101/00
CPCA43B13/04C08G18/10C08G18/4202C08G18/4238C08G2101/00C08G2410/00C08J9/08C08J9/102C08J2203/02C08J2203/04C08J2203/18C08J2375/06C08G18/664
Inventor 郑建伟
Owner XUCHUAN CHEM SUZHOU