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Method for synthesis of high solid content polymer polyol macromer with vegetable oil and uses thereof
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A technology of macromonomer and high solid content, which is applied in the field of polymer polymerization, can solve the problems that cannot be applied alone, high styrene content, high solid content, etc., and achieve a wide range of applications, high styrene content, and biodegradability Good results
Active Publication Date: 2011-09-21
北京市丰信德科技发展有限公司
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[0007] 2. Use polyether to react with unsaturated isocyanate to prepare a polymer containing double bonds as a macromonomer for the preparation of high-solid polymer polyols; the polymer polyol styrene synthesized from this macromonomer High content, high solid content, small particles, good stability, but unsaturated isocyanate is not a conventional product, rare in China, and expensive
Therefore, the use is narrow, it cannot be used alone, and it has a smell when used
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Embodiment 1
[0055] Embodiment 1 (embodiment 1-4 is step (A) product)
[0056] Add 500g of soybean oil and 18.8g of 80% formic acid to a 1L glass kettle, stir for 10 minutes, add 50g of 30% hydrogen peroxide dropwise, the molar ratio of hydrogen peroxide to soybean oil is 0.80, and the molar ratio of catalyst carboxylic acid to soybean oil Ratio is 0.60, react at 40-45°C for 5 hours, stand and separate the acid water, wash twice, decompress and vacuum, the water is less than 0.10%, and the epoxidized vegetable oil is obtained. The epoxy value of the product is 2.7 %, this product is Ring A.
Embodiment 2
[0058] Add 500g of rapeseed oil to a 1L glass kettle, use 31.6g of 80% formic acid, 10g of 50% sulfuric acid, stir for 10 minutes, add dropwise 55g of 30% hydrogen peroxide, hydrogen peroxide has a good effect on rapeseed oil The molar ratio of the catalyst is 0.90, the molar ratio of the catalyst carboxylic acid to rapeseed oil is 1.00, react at 50-60°C for 6 hours, stand and separate the acid water by layering, wash twice, decompress and vacuum, and the moisture is less than 0.10%. Obtain epoxidized vegetable oil, obtain epoxidized vegetable oil, detect the epoxy value of product 3.5%, this product is ring B.
Embodiment 3
[0060] Add 500g of corn oil to a 1L glass kettle, use 30g of 80% acetic acid, 10g of 50% sulfuric acid, stir for 10 minutes, add 45g of 30% hydrogen peroxide dropwise, the molar ratio of hydrogen peroxide to corn oil 0.72, the molar ratio of catalyst carboxylic acid to corn oil is 0.73, react at 45-55°C for 5 hours, stand and separate the acid water, wash twice, decompress and vacuum, the moisture is less than 0.10%, and the epoxidized Vegetable oil, the epoxy value of product detected is 3.1%, and this product is ring C.
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Abstract
The invention relates to a method of compounding high solid content polymer polylol macromolecule monomer by vegetable oil and the application. The method comprises the following steps: firstly, the epoxy vegetable oil is obtained through epoxidation of the vegetable oil; secondly, the hydroxylated vegetable oil is obtained through hydroxylation of the vegetable oil; thirdly, under the condition that catalyst exists, vegetable oil polyether polylol is obtained through polyreaction of the epoxy vegetable oil and the hydroxylated vegetable oil; fourthly, the obtained vegetable oil polyether polylol is reacted with isocyanate, thus the high solid content polymer polylol macromolecule monomer is obtained. The invention adopts the environmental protection green vegetable oil as the raw material to prepare the macromolecule monomer, the synthesized polymer polylol has the advantages that not only the styrene content is high, but also has the performances of lower viscosity, small grain, good stability, excellent overall property, wide using range, low using quantum and odorlessness. Therefore, the high solid content polymer polylol macromolecule monomer is mainly suitable for producing high resilient polyurethane foam plastic, and is applied in saddles of motor vehicle, motorcycle and bicycle, and industries of motor vehicle interior decoration, furniture and bedclothing.
Description
technical field [0001] The present invention relates to a polymer polymerization method, in particular to using vegetable oil as a raw material, after epoxidation and hydroxylation, to synthesize unsaturated vegetable oil polyether polyol from epoxidized vegetable oil and hydroxylated vegetable oil, and then polymerize with isocyanate to prepare Macromonomer, and the macromolecular monomer synthesized by the present invention is used to prepare polymer polyol or graft polyether (POP). Background technique [0002] Polymer polyol, known as graft polyether or polymer dispersion in China, is commonly known as polymer polyol internationally. It was mainly produced using acrylonitrile at first, and the viscosity of polymer polyol produced in this way is too high , cannot be used in many fields, thus limiting its application. Later, there was a method for producing polymer polyols with acrylonitrile-styrene monomer mixture, see US Patent 3383351 for related patents. With the eve...
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