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Preparation method of water-absorbing and oil-absorbing bifunctional resin

A dual-functional resin and oil-phase technology, applied in the field of functional polymer materials, can solve the problems of difficult uniform dispersion of hydrophilic substances, unstable water and oil absorption performance, difficult grafting reaction, etc., and achieves low production cost and repeated water and oil absorption. Strong ability and good product compatibility

Active Publication Date: 2013-01-02
武汉工大科技园发展有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for preparing a water-absorbing and oil-absorbing dual-functional resin in view of the above-mentioned prior art, which overcomes the difficulty of grafting reaction, cumbersome process and traditional physical blending in the existing chemical grafting method. The method cannot make the hydrophilic resin and the lipophilic resin well miscible, resulting in unstable water and oil absorption properties, hydrophilic substances are difficult to uniformly disperse in the hydrophobic matrix, and are easy to precipitate from the hydrophobic matrix. Simple production process, low production cost, safe operation, mild reaction conditions and other requirements

Method used

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  • Preparation method of water-absorbing and oil-absorbing bifunctional resin
  • Preparation method of water-absorbing and oil-absorbing bifunctional resin
  • Preparation method of water-absorbing and oil-absorbing bifunctional resin

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Add 1.06 g of Span 80 and 0.55 g of divinylbenzene into 6.25 g of n-butyl methacrylate, stir evenly, blow in nitrogen to remove oxygen, and obtain an oil phase. Weigh 0.5 g of acrylamide (7.03 mmol) and 0.1084 g of N,N-methylenebisacrylamide (0.7 mmol) respectively, and prepare an aqueous solution with a total mass of 32 g to obtain an aqueous phase. The water phase was added dropwise to the oil phase under high-speed stirring at 1200 rpm, and an emulsion was obtained after the dropwise addition. Weigh 0.18 g of ammonium persulfate (0.79 mmol) and 0.08 g of sodium bisulfite (0.77 mmol) respectively, and prepare a solution, and add the aqueous solution of ammonium persulfate and sodium bisulfite to the above-mentioned emulsion dropwise, Stirring was continued for 20 minutes until the emulsion stabilized. Finally, the emulsion was polymerized at 40 degrees Celsius for 24 hours until the reaction was complete, and the product was vacuum-dried to constant weight to obtain ...

Embodiment 2

[0042] Add 1.06 g of Span 80 and 0.55 g of divinylbenzene into 6.25 g of n-butyl methacrylate, stir evenly, blow in nitrogen to remove oxygen, and obtain an oil phase. Weigh 1 g of acrylamide (14.07 mmol) and 0.2168 g of N,N-methylenebisacrylamide (1.41 mmol) respectively, and configure them into an aqueous solution with a total mass of 32 g to obtain an aqueous phase. Add the water phase to the oil phase drop by drop under high-speed stirring at 1000~1300 rpm, and the emulsion is obtained after the dropwise addition. Weigh 0.18 g of ammonium persulfate (0.79 mmol) and 0.08 g of sodium bisulfite (0.77 mmol) respectively, and prepare solutions. Aqueous solutions of ammonium persulfate and sodium bisulfite were added dropwise to the above-mentioned emulsion, and stirring was continued for 20 minutes until the emulsion became stable. Finally, the emulsion was polymerized at 40 degrees Celsius for 24 hours until the reaction was complete, and the product was vacuum-dried to const...

Embodiment 3

[0045] Add 1.06 g of Span 80 and 0.55 g of divinylbenzene into 6.25 g of n-butyl methacrylate, stir evenly, blow in nitrogen to remove oxygen, and obtain an oil phase. Weigh 1.5 g of acrylamide (21.1 mmol) and 0.3253 g of N,N-methylenebisacrylamide (2.11 mmol) respectively, and prepare an aqueous solution with a total mass of 32 g to obtain an aqueous phase. Add the water phase to the oil phase drop by drop under high-speed stirring at 1000~1300 rpm, and the emulsion is obtained after the dropwise addition. Weigh 0.18 g of ammonium persulfate (0.79 mmol) and 0.08 g of sodium bisulfite (0.77 mmol) respectively, and prepare solutions. Aqueous solutions of ammonium persulfate and sodium bisulfite were added dropwise to the above-mentioned emulsion, and stirring was continued for 20 minutes until the emulsion became stable. Finally, the emulsion was polymerized at 40 degrees Celsius for 24 hours until the reaction was complete, and the product was vacuum-dried to constant weight ...

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Abstract

The invention relates to a preparation method of water-absorbing and oil-absorbing bifunctional resin. The method comprises the following steps: 1) first adding an emulsifier and an oil-soluble cross-linker into an oil phase monomer, stirring evenly, and introducing nitrogen gas for a few minutes to obtain an oil phase; 2) weighing an aqueous phase monomer, and preparing an aqueous solution to obtain a water phase; 3) dropwise adding the water phase to the oil phase to obtain an emulsion; and 4 ) dropwise adding an solution prepared from an initiator to the emulsion, continuing to stir for 20-60 min until a stable state of the emulsion, placing the emulsion in an environment at 20-50 DEG C for polymerization, reacting for 24 h, and treating the products by vacuum drying to a constant weight, so as to obtain the water-absorbing and oil-absorbing bifunctional resin. The preparation method provided by the invention has simple process, safe operation and mild reaction conditions; and the obtained resin has water-absorbing and oil-absorbing double functions and strong repeated water absorption ability, can meet needs in a variety of areas, and has broad market prospects and potential use value.

Description

technical field [0001] The invention relates to a preparation method of a water-absorbing and oil-absorbing bifunctional resin, which belongs to the field of functional polymer materials. Background technique [0002] Water-absorbing and oil-absorbing dual-functional resin is a new type of functional polymer material with both water-absorbing and oil-absorbing capabilities. The key to synthesizing water-absorbing and oil-absorbing resins is to have both hydrophilic and lipophilic groups and components. In addition, the process of synthesizing water- and oil-absorbing resins is also Key factors affecting the performance of water-absorbing and oil-absorbing resins. Compared with traditional materials such as sponge and absorbent cotton, it has many advantages such as water absorption and oil absorption, no oil leakage and water leakage under pressure, and a certain slow-release ability. It can be widely used in various fields such as petroleum, chemical industry, agriculture, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F212/36C08F220/56C08F222/38C08F220/14C08F222/14C08F220/58C08F220/06C08F4/40
Inventor 喻发全朱三薛亚楠马立彬蔡宁
Owner 武汉工大科技园发展有限公司
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