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Preparation method of oxidized polyethylene wax emulsion

A technology for oxidizing polyethylene wax and emulsion, applied in the field of polymer materials, can solve the problems of large fluctuation of product stability, high cost of raw materials, water pollution, etc., to avoid poor stability, excellent application performance, and good stability. Effect

Active Publication Date: 2014-04-30
江苏天问新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Patent CN101503516 discloses a preparation method of a cationic-nonionic oxidized polyethylene wax composite hand feeling agent. The oxidized polyethylene wax and the composite emulsifier are mixed, heated and melted, and water is added to emulsify until the emulsion is uniform to obtain the emulsified polyethylene wax. However, the method One-time water addition, it is difficult to precisely control the oil-water diversion process, resulting in a low success rate of emulsification, and the stability of the obtained product fluctuates greatly
[0006] Patent CN101289540B discloses a preparation method of oxidized polyethylene wax microemulsion, which adopts isomeric tridecyl fatty alcohol polyoxyethylene ether and secondary alcohol ethoxylate compound 15-S-9, and adds a small amount of additive hydrogen Potassium oxide and sodium bisulfite emulsify oxidized polyethylene wax into a microemulsion under high temperature and high pressure. The cost of raw materials used in this method is relatively high, and sodium bisulfite is required, and sodium bisulfite can pollute water bodies. And it is irritating to the skin, eyes and respiratory tract, and can cause allergic reactions

Method used

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  • Preparation method of oxidized polyethylene wax emulsion

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Embodiment 1

[0032] Take by weighing BASF Luwax OA210g, HLB value 12.8 nonionic composite emulsifier 63g, described nonionic composite emulsifier is obtained by compounding of isomeric tridecyl alcohol polyoxyethylene ether 1307 and 1312 of German Bessmann; Add 8.5g of potassium and 80g of deionized water into the autoclave, seal it and feed high-pressure nitrogen to make the pressure in the autoclave reach 0.15MPa, stir and heat at 500rpm to the set emulsification temperature of 120°C, then react at 8.5ml / min Add 342g of deionized water at 90-95°C dropwise to the tank for 40 minutes. After the dropwise addition, cool down to room temperature to obtain a microemulsion of oxidized polyethylene wax with a particle size of 35nm and a solid content of 40%.

Embodiment 2

[0034] Take by weighing BASF Luwax OA210g, 42.0g of nonionic emulsifier with HLB value 12.8, described nonionic emulsifier is obtained by compounding of isomeric tridecyl alcohol polyoxyethylene ether 1307 and 1312 of German Bessman; Potassium hydroxide Add 8.5g of deionized water and 80g of deionized water into the high-pressure reaction kettle, and then inject high-pressure nitrogen gas after sealing to make the pressure in the kettle reach 0.15MPa. Stir at 350rpm and heat up to the set emulsification temperature of 120°C. Add 530 g of deionized water at 90-95°C dropwise for 55 minutes. After the dropwise addition, cool down to room temperature to obtain an oxidized polyethylene wax emulsion with a particle size of 205 nm and a solid content of 30%.

Embodiment 3

[0036] Weigh 58.8g of nonionic emulsifier of BASF Luwax OA2210g, HLB value 12.5, described nonionic emulsifier is obtained by compounding of isomeric tridecyl alcohol polyoxyethylene ether 1306 and 1312 of German Bessman; Potassium hydroxide Add 9.0g of deionized water and 85g of deionized water into the high-pressure reaction kettle, and then inject high-pressure nitrogen gas after sealing to make the pressure inside the kettle reach 0.25MPa. 563g of deionized water at 90-95°C was added dropwise for 60 minutes. After the dropwise addition, the temperature was cooled to room temperature to obtain an oxidized polyethylene wax emulsion with a particle size of 118nm and a solid content of 30%.

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Abstract

The invention discloses a preparation method of an oxidized polyethylene wax emulsion, and aims to provide the preparation method of the oxidized polyethylene wax emulsion, wherein the preparation method is simple in process, and the product obtained is good in stability and excellent in performance. The method sequentially comprises the following steps: 1) adding oxidized polyethylene wax, a non-ionic compound emulsion, alkali and a certain amount of deionized water into a high pressure reaction kettle, and introducing high pressure nitrogen to pressurize to 0.1-0.6MPa after being sealed; heating to the emulsifying temperature at 110-160 DEG C while stirring; then, slowly dropping deionized water at 90-95 DEG C into the high pressure reaction kettle within 40-60 minutes, and after dropping, cooling to room temperature to obtain the OPE wax emulsion with the solid content of 25-40%. The preparation method disclosed by the invention belongs to the technical field of high molecular materials.

Description

technical field [0001] The invention relates to a method for preparing an oxidized polyethylene wax emulsion, in particular to a method for preparing an oxidized polyethylene wax emulsion with a nonionic composite emulsifier, and belongs to the technical field of polymer materials. Background technique [0002] Wax emulsion is a common application form of wax products. It is generally an emulsion with an oil-in-water structure with an effective solid content of 10% to 30%. The stable emulsion of solid-oil-water multiphase dispersion system produced by emulsification reaction generally selects the type of wax product and emulsifier required according to the application. [0003] Wax emulsion does not need to be heated and melted when used. It has stable performance, fineness, uniform film formation, good coverage, and is easy to mix and compound with aqueous solutions or emulsions of other substances. It is also non-toxic, non-corrosive, easy to store, and easy to use. Etc. ...

Claims

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Application Information

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IPC IPC(8): C08J3/03C08L23/30
Inventor 姬文晋宋巍
Owner 江苏天问新材料科技有限公司
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