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PEW (Polyethylene Wax) micro-emulsion and preparation method thereof

A technology of polyethylene wax and emulsified polyethylene wax, which is applied in the preparation of the emulsion and the field of polyethylene wax microemulsion, can solve the problems of difficult emulsification of high melting point polyethylene wax, reduce processing costs and environmental pollution, and have good stability , Solve the effect of difficult emulsification

Inactive Publication Date: 2016-02-03
YANAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a polyethylene wax microemulsion, which can solve the problem of difficult emulsification of high melting point polyethylene wax

Method used

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  • PEW (Polyethylene Wax) micro-emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The first step, according to the mass percentage, respectively weighs 25% polyethylene wax, 20% emulsifier, 55% distilled water, the sum of the mass of the above components is 100%;

[0027] Step 2: Put the polyethylene wax in the flask and heat it to 120°C to completely melt the polyethylene wax to obtain molten polyethylene wax;

[0028] The third step: keep the temperature of the flask at 120°C, stir the molten polyethylene wax obtained in the second step at a stirring speed of 750r / min, and add HLB=10 to the molten polyethylene wax while stirring. The emulsifier (addition method is: first drip OP-6 at a speed of 10 drops / minute, and then drop Span-80 into the molten polyethylene wax at a speed of 25 drops / minute while stirring) , carry out emulsification reaction 20min, obtain emulsified polyethylene wax;

[0029] Step 4: Keep the temperature of the flask at 120°C, heat the water to 85°C, and then add the heated water to the emulsified polyethylene wax obtained in ...

Embodiment 2

[0031] The first step is to weigh 30% polyethylene wax, 25% emulsifier, and 45% distilled water according to the mass percentage, and the sum of the mass of the above components is 100%;

[0032] Step 2: Put the polyethylene wax in the flask and heat it to 130°C to completely melt the polyethylene wax to obtain molten polyethylene wax;

[0033] The third step: keep the temperature of the flask at 130°C, stir the molten polyethylene wax obtained in the second step at a stirring speed of 1000r / min, and add HLB=10.5 to the molten polyethylene wax while stirring The emulsifier (adding method is: first drip OP-6 at a speed of 15 drops / minute, and then drop Span-80 into the molten polyethylene wax at a speed of 30 drops / minute while stirring) , carry out the emulsification reaction for 30 minutes to obtain emulsified polyethylene wax-2;

[0034] Step 4: Keep the temperature of the flask at 130°C, heat the water to 90°C, and then add the heated water to the emulsified polyethylene w...

Embodiment 3

[0036] The first step, according to the mass percentage, respectively weighs 20% polyethylene wax, 25% emulsifier, 55% distilled water, the sum of the mass of the above components is 100%;

[0037] The second step: first put the polyethylene wax in the flask and heat it to 140°C to completely melt the polyethylene wax to obtain molten polyethylene wax;

[0038] The third step: keep the temperature of the flask at 140°C, stir the molten polyethylene wax obtained in the second step at a stirring speed of 1250r / min, and add HLB=11 to the molten polyethylene wax while stirring The emulsifier (addition method is: first drip OP-6 at a speed of 20 drops / minute, and then drop Span-80 into the molten polyethylene wax at a speed of 35 drops / minute while stirring) , carry out emulsification reaction 40min, obtain emulsified polyethylene wax;

[0039] Step 4: Keep the temperature of the flask at 140°C, heat the water to 95°C, and then add the heated water to the emulsified polyethylene w...

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Abstract

The invention discloses novel PEW (Polyethylene Wax) micro-emulsion. The novel PEW micro-emulsion is prepared from the following components in percentage by weight: 20 to 30 percent of PEW, 15 to 25 percent of emulsifying agent and 45 to 55 percent of water, and the mass sum of the PEW, the emulsifying agent and the water is 100 percent. The invention also discloses a preparation method of the novel PEW micro-emulsion. According to the PEW micro-emulsion disclosed by the invention, the particle diameter is smaller and is below 3 mum; the stability is good, the PEW micro-emulsion is not delaminated when being centrifuged for 30 minutes at a centrifugal speed being 3,000 r / min, and the dilution stability is high. By adopting the preparation method of the PEW micro-emulsion, not only can the problem that high-melting PEW is difficult to emulsify be solved, but also the using varieties and the using amount of various additives are reduced during an emulsification process, and the processing cost and the environment pollution are reduced.

Description

technical field [0001] The invention belongs to the technical field of polyethylene wax production, relates to a polyethylene wax microemulsion, and also relates to a preparation method of the emulsion. Background technique [0002] Polyethylene wax is a low-molecular-weight polyethylene with the characteristics of wax. It has stable chemical properties, smooth handle, good wear resistance and high hardness. It is widely used in ink, paint, shoe wax, textile and other industries. The polyethylene wax microemulsion prepared by heating and emulsifying polyethylene wax in an aqueous system has important application value in the textile industry. However, as a high melting point wax, polyethylene wax is not easy to emulsify. Ethylene wax microemulsions often require a large amount of emulsifier and solvent, and the wax content of the resulting emulsion is still relatively low. Therefore, the preparation of products with high wax content, simple process, small particle size and ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08J3/05
Inventor 甄延忠韩进薛湘湘史宏伟付峰
Owner YANAN UNIV
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