Vegetable fiber liquefied matter, and preparing method and use thereof
A plant fiber, selected technology, applied in the field of polyurethane foam materials, can solve the problems of unfavorable final product performance, high rigid segment ratio, limited dosage, etc., achieve good application prospects, improve flexibility, and reduce consumption.
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Embodiment 1
[0033] Add 100g of 1,2-ethanediol, 4g of phenol, and 3g of sulfuric acid into the reactor, stir evenly, raise the temperature to 120°C, add 8g of crushed and dried wheat straw, and react for 40min, cool the reaction system with ice, and Discharge. A brown-black viscous liquid was obtained with a hydroxyl value of 460 mg KOH / g and a viscosity of 250 mPa.s.
Embodiment 2
[0035] Add 100g of glycerin, 6g of phenol, and 5g of hydrochloric acid into the reactor, stir evenly, raise the temperature to 140°C, add 17g of crushed and dried bagasse, react for 70min, cool the reaction system with ice, and discharge. A brownish black viscous liquid was obtained. Its hydroxyl value is 340 mg KOH / g, and its viscosity is 430 mPa.s.
Embodiment 3
[0037] Add 100g of 1,2-ethanediol and 5g of sulfuric acid into the reactor, stir evenly, raise the temperature to 140°C, add 17g of crushed and dry bagasse, react for 70min, cool the reaction system with ice, and discharge. A brownish black viscous liquid was obtained. Its hydroxyl value is 355 mgKOH / g, and its viscosity is 330 mPa.s.
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