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High oil absorption composite material containing cellulose waste filler and preparation method thereof

A composite material and waste technology, which is applied in the field of high oil absorption composite material and its preparation, can solve the problems of many reaction steps, small oil absorption rate, re-oil leakage, etc., and achieves excellent oil absorption performance, high oil absorption rate and fast oil absorption rate. Effect

Active Publication Date: 2012-12-05
SHANGHAI FINETAC PRECISION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The result is not ideal. This oil-absorbing material has obvious disadvantages: the oil absorption ratio is small, and the oil will leak again after a little pressurization after oil absorption. These shortcomings limit their application to a certain extent.
In the second stage, hydrophobic polymer materials such as polypropylene and polyethylene are used to make mesh felt with a certain degree of porosity through melt-spinning or melt-blowing. The oil absorption rate and oil-water selectivity are improved, but there are still pressure conditions. The problem of oil leakage again
The above methods have their own characteristics, but there are many reaction steps and high temperature. Adding organic solvents is not good for improving efficiency, energy saving, safety and environmental protection.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0040] The preparation method of substrate acrylate copolymer super oil-absorbing resin is as follows:

[0041] ① Ingredients according to the above ratio;

[0042] ②Stir and emulsify, add deionized water and emulsifier to the reaction device, stir and emulsify for 15 to 20 minutes;

[0043] ③ Nitrogen and oxygen exhaust for 15 to 30 minutes, then connect with nitrogen balloon for protection;

[0044] ④The method of adding comonomer and part of the initiator or part of the comonomer and initiator, the dropping rate is based on maintaining the set reaction temperature, and the dropping time is 0.75 to 1 hour;

[0045] ⑤ Add the remaining initiator, copolymerized monomer and initiator dropwise, the reaction temperature is controlled at 70-90°C, and the reaction time is 5-9 hours;

[0046] ⑥ The obtained acrylate copolymer emulsion product (A) is sealed and protected from light for future use.

[0047] The detection index of acrylate copolymer emulsion product (A) is as follow...

Embodiment 1

[0082] (1) Synthetic acrylate copolymer super oil-absorbing resin

[0083] The formula is measured by weight percentage as follows: deionized water=69.85, SDS+Tween 60=1.357, lauryl methacrylate+vinyl acetate=26.20, N-methylolacrylamide+acrylic acid=0.94, potassium persulfate =0.22; Add the first two items into a four-necked reaction flask with electric stirring, condenser, dropping liquid balance funnel and thermometer, heat up to 40-50°C and stir for fifteen minutes, add comonomer, stir for thirty minutes, pass After 15 minutes of oxygen degassing with nitrogen, connect with nitrogen balloon protection; heat up to 80±2°C, add 1 / 4 potassium persulfate aqueous solution, react for 40 minutes, and drop 3 / 4 potassium persulfate aqueous solution through the dropping balance funnel, The rate of addition is preferably when the reaction temperature is stable at 85±2°C; after 7 hours of reaction, the temperature rises to 90°C and then reacts for 1 hour, then cools down, and the produc...

Embodiment 2

[0089] (1) Emulsion copolymerization into acrylate copolymer super oil-absorbing resin

[0090] Formula: distilled water, OP-10, sodium dodecyl sulfonate, methacrylic acid, N-methylol acrylamide, isooctyl acrylate, butyl acrylate and ammonium persulfate, the ratio of which is 69.66% by weight , 1.00, 0.37, 046, 0.54, 13.9, 13.9, and 0.17. Steps: In a glass, mix the monomer and cross-linking agent evenly, pass nitrogen and exhaust oxygen (D), use a small amount of water to prepare the initiator into a solution (E); add the dispersion medium and emulsifier with electric stirring , condensing tube, balanced dropping funnel, and a four-necked reaction flask with a thermometer, heated and stirred for 15 minutes, then added 1 / 4 of (D), stirred with nitrogen for 30 minutes, added 1 / 4 of (E) to exhaust oxygen, and then Nitrogen balloon protection; heat up to 75±2°C and react for 40 minutes; then drop the reserved (D) and (E) respectively, the rate of addition is based on the reaction...

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Abstract

The invention relates to a high oil absorption composite material containing cellulose waste filler and a preparation method thereof. The composite material takes acrylic ester multipolymer high oil absorption resin as base material, in which the cellulose waste in the shape of island is uniformly dispersed in the base material. The preparation includes the following steps of: the preparation of the base material, namely the acrylic ester multipolymer high oil absorption resin; the preparation of the cellulose waste filler; the blending of the high oil absorption resin and the cellulose waste filler to prepare the high oil absorption composite material. Compared with the prior art, the composite material has the following advantages of excellent oil absorption performance, the availability to absorb a plurality of oils, high oil absorption percentage and good fat-binding performance. The key technology of the invention lies in the acrylic ester multipolymer oil absorption resin, which has wide raw material source, takes water accounting for 60-80 percent as dispersing medium, and the technology is simple and easily controllable. The filler is natural cellulose waste with the particle diameter of 0.25-0.035mm. The waste can be bagasse, corn cob, peanut shells and sawdust powder, and has wide source, belongs to resource recycling area, conforms to the national policy of sustainable development and is simple, safe and environment-friendly in preparation process.

Description

Technical field: [0001] The invention relates to an oil-absorbing composite material, in particular to a high oil-absorbing composite material containing cellulose waste filler and a preparation method thereof. Background technique: [0002] High Oil-Absorbable Resin (HOAR for short) is a new type of functional polymer material that can replace traditional oil-absorbing materials. It plays an important role in removing oil pollution and improving the living environment of human beings. [0003] At present, oil-absorbing materials are divided into three stages from the development of materials: in the first stage, porous materials such as cotton, sponge and clay are used to absorb oil. The oil-absorbing principle is based on capillary absorption, which is a kind of physical adsorption. The result is not ideal. This oil-absorbing material has obvious disadvantages: the oil absorption rate is small, and the oil will leak again after a little pressurization after absorbing the o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/08C08L97/02C08F220/10C08F2/26C08F2/30
Inventor 方月娥何大庆陈慧蓉周燕苏慧蓉
Owner SHANGHAI FINETAC PRECISION TECH CO LTD
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