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A method for preparing hydrophilic and easily degradable polyurethane foam by using Camellia oleifera

A technology of polyurethane foam and Camellia oleifera is applied in the field of preparing hydrophilic and easily degradable polyurethane foam, which can solve the problems of difficult direct utilization, environmental pollution, waste of resources, etc. Effect

Inactive Publication Date: 2016-03-02
RES INST OF SUBTROPICAL FORESTRY CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The annual output of Camellia oleifera is more than 10 million tons. Most of this rich renewable resource is burned or discarded as fuel, which not only causes a great waste of resources but also pollutes the environment.
Camellia oleifera exists in solid form, and its chemical activity is not high, so it is difficult to use directly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Add 50 parts by mass of polyethylene glycol 200, 20 parts by mass of ethylene glycol, 30 parts by mass of glycerol, 3 parts by mass of 98% sulfuric acid, and 25 parts by mass of camellia oleifera powder into a three-necked bottle, place in a three-necked bottle with condensation, stirring 1. In the liquefaction reaction kettle of the thermometer, react at 170° C. for 120 minutes, add magnesium oxide to neutralize to pH 7-8, and obtain the liquefaction product of Camellia oleifera. Add 100 parts by mass of Camellia oleifera liquefaction product, 2 parts by mass of triethanolamine dodecyl sulfate, 1 part by mass of TEDA-L33, 3 parts by mass of S-25, 3 parts by mass of water, and 20 parts by mass of TDI into the container and stir at high speed for 15 seconds , poured into the mold, left to stand at room temperature to foam, after the reaction was completed, aged at room temperature for 24 hours, demolded to obtain easily degradable hydrophilic polyurethane foam. The water...

Embodiment 2

[0032] Add 60 parts by mass of polyethylene glycol 400, 10 parts by mass of ethylene glycol, 30 parts by mass of glycerin, 2 parts by mass of 98% sulfuric acid, and 17 parts by mass of camellia oleifera powder into a three-necked bottle, place in a three-necked bottle with condensation, stirring 1. In the liquefaction reaction kettle of the thermometer, react at 165° C. for 110 minutes, add calcium oxide to neutralize to pH 7-8, and obtain the liquefaction product of Camellia oleifera. Add 100 parts by mass of Camellia oleifera liquefaction product, 3 parts by mass of dodecyl sulfate triethanolamine salt, 1.5 parts by mass of TEDA-L33, 1.8 parts by mass of S-25, 4 parts by mass of water, and 25 parts by mass of TDI into the container and stir at high speed 10s, pour into the mold, stand at room temperature to foam, after the reaction is completed, mature at room temperature for 36 hours, demould to obtain easily degradable hydrophilic polyurethane foam. The water retention rat...

Embodiment 3

[0034] Add 70 parts by mass of polyethylene glycol 600, 10 parts by mass of ethylene glycol, 20 parts by mass of glycerol, 4 parts by mass of 98% sulfuric acid, and 20 parts by mass of camellia oleifera powder into a three-necked bottle, place in a three-necked bottle with condensation, stirring 1. In the liquefaction reaction kettle of the thermometer, react at 160° C. for 100 minutes, add sodium oxide to neutralize to a pH value of 7-8, and obtain the liquefaction product of Camellia oleifera. Add 100 parts by mass of Camellia oleifera liquefaction product, 4 parts by mass of ammonium lauryl sulfate, 2 parts by mass of TEDA-L33, 2.5 parts by mass of S-25, 5 parts by mass of water, and 30 parts by mass of TDI into the container and stir at high speed for 11 seconds, pour Put it into a mold, let it stand at room temperature for foaming, after the reaction is completed, mature it at room temperature for 72 hours, and demould to obtain an easily degradable hydrophilic polyurethan...

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PUM

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Abstract

The invention discloses a method for preparing hydrophilic and easily degradable polyurethane foam by using Camellia oleifera, which converts Camellia oleifera into a liquid state to form a liquefied product of Camellia oleifera, and reacts the above-mentioned liquefied product of Camellia oleifera and a series of dodecyl sulfate ethanolamine salts Add the catalyst, TEDA-L33 catalyst, S-25 catalyst, and water into the container and stir evenly, then add TDI, stir at high speed and pour it into the mold, leave it to foam at room temperature, and let it stand and mature at room temperature after the reaction is completed , demoulding to obtain hydrophilic easily degradable polyurethane foam. The invention makes full use of tea oil processing residue Camellia oleifera, and can prepare hydrophilic and easily degradable polyurethane foam, thereby providing a new type of environmentally friendly soilless cultivation that is hydrophilic, water-retaining, and easily degradable for vegetables, flowers, seedlings, etc. matrix.

Description

technical field [0001] The invention relates to a method for preparing hydrophilic and easily degradable polyurethane foam by using camellia oleifera. Background technique [0002] Soilless cultivation is an emerging science and technology developed on the basis of plant mineral nutrition research. It does not use natural soil, but completely uses chemical nutrient solution to cultivate plants. It has many advantages such as land saving, water saving, cost saving, little impact on the environment, fast crop growth, high yield, high quality, and less pests and diseases. It is the future agriculture, forestry, flower and other industries. ideal model. The most widely used soilless culture is substrate cultivation. The substrate is a growth medium that can provide stable water, air and fertilizer structures for crops, so that nutrients and water from nutrient solutions can be transferred, and plant roots can selectively absorb them. At present, the commonly used matrix materi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/66C08G18/64C08G18/48C08G18/32C08G101/00
CPCC08G18/6492C08G18/6677C08G2230/00C08G2310/00C08G2110/0083
Inventor 张金萍杜孟浩王舟莲胡立松姚小华
Owner RES INST OF SUBTROPICAL FORESTRY CHINESE ACAD OF FORESTRY