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Cellulose based water-absorbing and oil-absorbing material and preparation method thereof

An oil-absorbing material and cellulose-based technology, which is applied in the field of cellulose-based water-absorbing and oil-absorbing materials and their preparation, can solve the problems of low environmental protection, unsatisfactory water-absorbing and oil-absorbing effects, and lack of economical practicability, etc., and achieve improved water- and oil-absorbing properties, Good water and oil absorption performance, excellent degradability effect

Inactive Publication Date: 2012-07-25
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Equally, its water-absorbing and oil-absorbing effect is not ideal enough, and product environmental protection is relatively low, lacks economical practicability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] a. Crush 5.0 g of lignocellulose with a degree of polymerization of 548 into blocks, place it in a 250 ml three-neck flask, add 80 ml of an aqueous solution of sodium hydroxide with a mass fraction of 18% at room temperature, stir for 3 hours, filter with water, Wash until neutral, press and set aside.

[0038] b. Take 1.0 g of lignocellulose pretreated in step a, add it to 70 ml of water, stir and heat up to 30° C.;

[0039] c. Add 0.24 g of potassium persulfate to the reaction system of step b, and stir for 0.5 hours;

[0040] d. Add 2.0g of acrylamide, 2.0g of butyl methacrylate and 0.02g of polyvinylpyrrolidone to the reaction system of step c, raise the temperature to 70°C under stirring, react at constant temperature for 2 hours, and add 0.08g of N,N'- Methylenebisacrylamide, continue stirring for 1 hour and then stop, filter while hot, and precipitate with 100ml of absolute ethanol;

[0041] e. Filter the precipitated product, wash it with hot water three times...

Embodiment 2

[0045] a. Crush 5.0 g of cellulose with a degree of polymerization of 645 into lumps, place it in a 250 ml three-necked flask, and add 80 ml of an aqueous solution of sodium hydroxide with a mass fraction of 18% at 100° C., stir for 2 hours, and filter with water. Wash until neutral, press and set aside.

[0046] b. Take 1.0 g of lignocellulose pretreated in step a, add it to 60 ml of water, stir and heat up to 40°C;

[0047] c, adding 0.08g of potassium persulfate to the reaction system of step b, stirring and reacting for 0.5 hours;

[0048] d. Add 2.6g of acrylamide, 1.4g of butyl methacrylate and 0.02g of polyvinylpyrrolidone to the reaction system of step c, raise the temperature to 60°C under stirring, react at constant temperature for 2 hours, and add 0.12g of N,N'- Methylenebisacrylamide, continue stirring for 2 hours and then stop, filter while hot, and precipitate with 100ml of absolute ethanol;

[0049] e. Filter the precipitated product, wash it with hot water th...

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Abstract

The invention relates to a cellulose based water-absorbing and oil-absorbing material and a preparation method of the cellulose based water-absorbing and oil-absorbing material, belonging to the technical field of high polymer materials. The preparation method comprises the following steps: methyl cellulose after being activated is taken as a substrate, acrylic amide and butyl methacrylate are taken as a polymerization monomer, potassium peroxydisulfate is taken as an initiator, N, N'-methylene-bisacrylamide is taken as a cross-linking agent, polyvinylpyrrolidone is taken as a dispersing agent, and the cellulose based water-absorbing and oil-absorbing material is prepared under a condition of no nitrogen through a suspension polymerization method. The cellulose based water-absorbing and oil absorbing material is environment-friendly and biodegradable, the reaction process is simple, the comprehensive cost is low, and the polymerization product still keeps the original appearance characteristics of the cellulose, so that the material can solve the problem that the common water absorbing and oil absorbing material can not absorb water and oil and can not be biodegradable, and has important significance for expanding the application field.

Description

technical field [0001] The invention relates to a cellulose-based water-absorbing and oil-absorbing material and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] In the 21st century, science and technology have tended towards renewable raw materials and environmentally friendly and sustainable methods and processes. The U.S. Department of Energy predicts that by 2020, more than 10% of the basic chemical structure materials from plant renewable resources will occupy the market, and by 2050 it will reach 50%. Therefore, as an environmentally friendly renewable resource, cellulose has made countries all over the world attach great importance to the research and development of cellulose. Amphiphilic graft copolymer (AGP for short) is one of the hotspots in the research field of functional polymer materials. Amphiphilicity refers to hydrophilicity and lipophilicity. It is to link two thermodynamically incompatibl...

Claims

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Application Information

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IPC IPC(8): C08F251/02C08F220/18C08F220/56C08F222/38C09K3/32
Inventor 徐德增刘智超
Owner DALIAN POLYTECHNIC UNIVERSITY
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