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Preparation method of water-absorbable material by crofton weed

A technology of Eupatorium adenophorum and water absorption, which is applied in the direction of fiber raw material processing, textiles and papermaking, etc., to achieve the effect of improving the reaction ability of graft copolymerization

Inactive Publication Date: 2014-02-12
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with starch-based superabsorbent resins, there are relatively few studies on water-absorbent materials of natural plant tissue cells, and the research on water-absorbent resins based on Eupatorium adenophorum fiber is still a blank

Method used

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  • Preparation method of water-absorbable material by crofton weed
  • Preparation method of water-absorbable material by crofton weed

Examples

Experimental program
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Effect test

Embodiment １

[0025] Embodiment 1: the preparation method of Eupatorium adenophorum water-absorbing material, concrete operation is as follows:

[0026] (1) Preparation process of Eupatorium adenophorum

[0027] The whole plant of Eupatorium adenophorum is air-dried, and the air-dried plants with a moisture content of 15% are mechanically ground, and then screened through a 100-mesh sieve to become qualified Eupatorium adenophorum granule raw materials;

[0028] (2) Ether extraction treatment of raw materials of Eupatorium adenophorum granules

[0029] Weigh 5g of Eupatorium adenophorum granule raw material, wrap it with qualitative filter paper, tie it with cotton thread, put it into a 250ml Soxhlet extractor, add 250ml of analytical pure ether, install a condenser, connect the extraction instrument, and put it in a water bath In the pot, turn on the cooling water, adjust the heater of the water bath so that the ether boiling rate is 5 times per hour in the Soxhlet extractor, and after re...

Embodiment 2

[0039] Example 2: The preparation method of Eupatorium adenophorum water-absorbing material, concrete operation is as follows:

[0040] (1) Preparation process of Eupatorium adenophorum

[0041] The whole plant of Eupatorium adenophorum is air-dried, and the air-dried plants with a moisture content of 7% are mechanically ground, and then screened through a 300-mesh sieve to become qualified Eupatorium adenophorum granule raw materials;

[0042] (2) Ether extraction process and method of the raw material of Eupatorium adenophorum granules

[0043] Weigh 10g of qualified Eupatorium adenophorum granule raw material, wrap it with qualitative filter paper, tie it with cotton thread, put it into a 500ml Soxhlet extractor, add 500ml of analytical pure ether, install a condenser, and connect the extraction instrument , as in the water bath, turn on the cooling water, adjust the heater of the water bath to make the boiling rate of ether be 4 times per hour in the Soxhlet extractor, a...

Embodiment 3

[0051] Example 3: The preparation method of Eupatorium adenophorum water-absorbing material, concrete operation is as follows:

[0052] (1) Preparation process of Eupatorium adenophorum

[0053] The whole plant of Eupatorium adenophorum is air-dried, and the air-dried plants with a moisture content of 12% are mechanically ground, and then screened through a 400-mesh sieve to become qualified Eupatorium adenophorum granule raw materials;

[0054] (2) Ether extraction process and method of the raw material of Eupatorium adenophorum granules

[0055] Weigh 20g of qualified Eupatorium adenophorum granule raw material, wrap it with qualitative filter paper, tie it with cotton thread, put it into a 1000ml Soxhlet extractor, add about 1000ml of analytically pure ether, install a condenser, and connect to extract Instrument, as for the water bath, turn on the cooling water, adjust the heater of the water bath to make the boiling rate of ether be 3 times per hour in the Soxhlet extr...

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Abstract

The invention discloses a preparation method of water-absorbable material by harmful invasive species, i.e. crofton weed, which comprises the following steps of: carrying our air drying on the whole plant of crofton weed and grinding, extracting with diethyl ether after screening, removing hydrophobic poison components from particle raw materials, carrying out graft copolymerization synthesis on the extracted crofton weed particle-shaped raw material by an aqueous solution polymerization method, precipitating a graft copolymerization synthetic with absolute methanol, dispersing and washing, carrying out freeze drying, grinding, carrying out freeze drying again, and sealing, to obtain crofton weed water-absorbable resin; the water-absorbable material prepared by the method has the distilled water absorbing multiplying power of 930g / g highest, and the distilled water absorbing speed of 20min; the 0.9% sodium chloride water solution absorbing rate can reach to 320g / g highest, and the 0.9% sodium chloride water solution absorbing rate is 40min; and the preparation method is applicable to the soil conditioner water and the cultivation agent in the aspects of the agriculture, the forestry and the horticulture, and the desiccating agent and the dehydrating agent in the aspect of the industry.

Description

technical field [0001] The invention relates to a method for manufacturing a water-absorbing material by utilizing a harmful invasive species-Eupatorium adenophorum, and belongs to the technical field of natural polymer materials. Background technique [0002] Eupatorium adenophorum (Eupatorium adenophorum Spreng) belongs to the genus Eupatorium adenophorum in the family Asteraceae. It is named Eupatorium adenophorum because of its purple stem and petiole. The plant of Eupatorium adenophorum becomes lignified after 1.5 days of growth. It is a perennial, clustered semi-shrub plant with a height of 1.0-1.5 meters and a maximum height of about 3 meters. Eupatorium adenophorum is a harmful weed introduced from Southeast Asia to China in the 1950s. It is widely distributed in Yunnan, Guizhou, Sichuan, Guangxi, Tibet and other places. It is currently spreading to central and eastern China at a rate of about 60 hectares per year. Regional sprawl. In recent years, due to large-sca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F291/00C08F251/02C08F289/00D21C5/00C08H7/00
Inventor 高欣张恒宁选起悉龙米小倩蔡云敏
Owner KUNMING UNIV OF SCI & TECH