Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for preparing hydrophilic easily-degradable polyurethane foam by utilizing oil-tea camellia seed meal

A technology of polyurethane foam and Camellia oleifera, which is applied in the field of preparation of hydrophilic and easily degradable polyurethane foam, can solve the problems of waste of resources, difficulty in direct utilization, pollution of the environment, etc., achieve good hydrophilicity, alleviate energy and environmental crises, and reduce dependence on Effect

Inactive Publication Date: 2014-05-14
RES INST OF SUBTROPICAL FORESTRY CHINESE ACAD OF FORESTRY
View PDF3 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 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 15s , 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 retent...

Embodiment 2

[0033] Add 60 parts by mass of polyethylene glycol 400, 10 parts by mass of ethylene glycol, 30 parts by mass of glycerol, 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 a pH value of 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 for foaming, after the reaction is completed, mature at room temperature for 36 hours, demould to obtain easily degradable hydrophilic polyurethane foam. The wate...

Embodiment 3

[0035] 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 the 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 easily degradable hydrophilic polyurethane...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for preparing hydrophilic easily-degradable polyurethane foam by utilizing oil-tea camellia seed meal. The method comprises the following steps: transforming oil-tea camellia seed meal into liquid state to form a liquefied product of the oil-tea camellia seed meal, adding the liquefied product of the oil-tea camellia seed meal, an ethanolamine lauryl sulfate surfactant, a TEDA-L3 catalyst, an S-25 catalyst and water into a container, uniformly stirring, adding TDI, stirring at a high speed, pouring into a mould, standing and foaming at room temperature, standing and curing at room temperature after the reaction is completed, demoulding to obtain the hydrophilic easily-degradable polyurethane foam. According to the method, the hydrophilic easily-degradable polyurethane foam can be prepared through fully utilizing camellia oil processing residue oil-tea camellia seed meal, so that a novel hydrophilic, water-retaining and easily-degradable environmental-friendly soilless culture substrate is provided for vegetables, flowers, seedlings and the like.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(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