Method for preparing nano micro-emulsified wax

Abstract

The invention discloses a process for preparing nanometer micro emulsifying wax, wherein components of raw material which is formed according to percentage by weight are that paraffin 2-40%, viscosity additive 1-30%, emulsifying agent 3-12%, oxygenated polythene wax 1-50%, oxygenated polypropylene wax 0.001-40%, water 30-70% and alkali 0.001-5%, the process for preparation comprises the following steps: batching paraffin, additive and emulsifying agent according to the above percentage by weight, and then placing into a special-purpose reaction kettle to heat up, wherein the temperature is 80-150 DEG C, batching water and alkali again according to the above percentage by weight, and then placing into another reaction kettle, heating up, wherein the temperature is 80-150 DEG C, slowly adding water in the second reaction kettle into the oil phase of the first reaction kettle, and slowly stirring, emulsifying, cooling nanometer oil emulsion through water after emulsifying for 10-160 minutes, wherein the temperature is 20-60 DEF C, and taking out nanometer oil emulsion. The process for preparation of the invention has the advantages of adjustable product solid phase component fusing point, thin and fine grain diameter, correct viscosity and extended application.

Description

【Technical field】 [0001] The invention relates to the field of emulsified wax preparation, in particular to a preparation method of nano microemulsified wax. 【Background technique】 [0002] The application fields of emulsifying wax are quite extensive, with a large quantity and a wide range. Its main application fields are textile, papermaking, leather, fiberboard, glazing, gypsum, fruit preservation, construction, gardening, ceramics, etc. The main manufacturers of foreign wax emulsions are Mobil, BASF, Mitsui and so on. In 1988, the amount of emulsifying wax in the US market was 19,000 tons. At present, it is estimated that the consumption of emulsifying wax in the Asia-Pacific region is about 30,000 tons. Domestic demand for wood-based panel emulsifying wax will reach 100,000-120,000 tons by 2010; my country's demand for paper-making emulsifying wax will reach 10,000-15,000 tons; my country's demand for fruit and vegetable preservation and plant protection emulsifying w...

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Problems solved by technology

[0016] Chinese patent CN1570038 discloses a paraffin emulsifier and its preparation method, which is composed of 20-30 parts of lauryl alcohol, ethylene oxide, monoglyceride, stearic acid, and ethanol, and can be reacted in an ordinary reactor Made into a solid or paste paraffin emulsifier; using this patented emulsifier to produce paraffin emulsion requires less amount, only 4%-5% of the amount of paraffin; the prepared paraffin emulsion is non-toxic, tasteless, strong in stability and good in lubricity , anti-acid, anti-alkali, hard water resistance, no delamination, no demulsification, and can make emulsion with a paraffin solid content of more than 50%, and the emulsion has good water solubility. It can be widely used in textile, papermaking and other fields as an industrial additive. It can be directly used as a release agent. In the man-made fiberboard industry, it can completely replace paraffin as a waterproof and moisture-proof additive, and it is simpler, lower in cost and better in effect than using paraffin; nanoscale microemulsion

[0017] Chinese patent CN1661159 discloses the application of a waterproof emulsified paraffin wax in the production of fiberboard. Paraffin wax is used as a raw material, emulsified by adding a specific ratio of emulsifying additives and water, and the paraffin wax solid content in the emulsified paraffin wax can reach 40-50%. When used as a waterproofing agent, in the process of wood processing and drying in the production of fiberboard, particleboard, etc., that is, at a temperature of 100-180 ° C, all the hydrophilic components in the emulsifying additive are naturally decomposed, eliminating the influence of the hydrophilic component in the emulsifying additive on the waterproof performance. , to achieve the purpose of fiber waterproofing; it can be widely used as a waterproofing agent for wood products such as fiberboard and particleboard; but the particle size of the product prepared by this patent is relatively large

[0019] Chinese patent CN101108985 invented a paraffin emulsion modified with petroleum resin. The emulsion contains paraffin, petroleum resin, oxidized wax, paraffin emulsifier and water. Its components are: paraffin 2% to 30%, petroleum resin 2% to 30% %, 0.4% to 12% of oxidized wax, 0.6% to 12% of paraffin emulsifier, 16% to 95% of water; the process steps of its preparation method are: (1) put the raw materials in a high-pressure reactor and heat them to 100°C (2) Stir the raw materials evenly at a speed of 400r / min; (3) Heat half of the total water to 95°C and pour it into the oil phase, stir at a speed of 800-1200r / min, and emulsify for 10-30 (4) add the other half of the total amount of water in the emulsion again, at normal temperature, without heating, continue to stir, cool to 40 ℃ and discharge, and make a paraffin emulsion modified with petroleum resin; the positive effect of this invention is : The paraffin emulsion modified with petroleum resin can greatly improve the adhesion, water resistance and acid and alkali resistance of the wax film, and has a very large expansion in performance and use; but the particle size of the emulsion still cannot reach the nanometer level emulsifying wax emulsion

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