Nanyang wax fine chemical plant of the application of emulsified wax (a)

Nanyang wax fine chemical plant of the application of emulsified wax (a)

Paraffin is a kind of cohesion stronger oily organic compound, insoluble in water, can't saponification.Paraffin can be divided by its state liquid paraffin wax, paraffin wax and microcrystalline wax 3 kinds big.Liquid paraffin is a kind of important chemical raw materials, widely used in the preparation of chlorinated paraffin, leather fatliquoring agent, fertilizer additives, detergent, pesticide emulsifier, flame retardant plastic plasticizer, rubber, paint additives, lubricant additives, etc.Solid paraffin used in leather mainly soft wax and wax melting point, in the form of emulsified wax distribution in fatliquoring agent to improve the filling ability of fatliquoring agent and fatliquoring leather handle, can also be used for the preparation of chlorinated paraffin, the fatliquoring material such as alkyl sulfonyl chloride.Microcrystalline wax (lep) is separated from the residue of solid hydrocarbon, mainly for the deployment of special wax and hot-melt adhesive, also can spell and fatliquoring agent mix in order to improve the water resistance of fatliquoring leather.

Wax emulsion is a kind of special wax products, the most important is by paraffin and several different categories, properties of the emulsifier and the appropriate regulator via the reaction of solid - oil - water emulsion stability of emulsion of multiphase dispersed system, generally according to the types of use choose the paraffin and emulsifier.Wax emulsion which can be the free flow of emulsion in its use without heating the molten or don't have to be dissolved in some solvent, with stable performance, fine and uniform film forming, good coverage, easy solution or emulsion mixed with other substances, when used in combination and non-toxic, non-corrosive, easy to store, convenient to use.At the same time with water instead of organic solvent, wax products cost greatly reduced, in order to open up, including petroleum wax, wax products application field.

Emulsified wax is widely applied in man-made board industry, papermaking industry, polish industry, agriculture, ceramics industry, textile industry, rubber industry and construction industry, etc. 

1 man-made board industry in man-made board, fiberboard and particleboard (particle board) is a product of comprehensive utilization of timber wood industry and its components in addition to wood fiber or sawdust, still need to have a certain proportion of rubber, wood fiber or wood treated with hot pressing glued to shape.A certain number of wax with rubber mixing, can make the wood with water resistance and improve the surface finish.In the late 70 s, in fiberboard and particleboard production in our country, the most used solid paraffin broken straight method, namely the paraffin directly without emulsifier emulsion will join the rest of the sheet metal solid paraffin or molten paraffin wax.Straight paraffin method has many disadvantages, such as wax, uneven distribution of large particles, the production of wax the twigs, eventually led to the decrease of the strength of man-made board and waterproof performance, affect the overall quality of products.And emulsified wax for small granularity, in the process of man-made board manufacturing, through effectively demulsification, can make the tiny wax particles from the water phase, and the precipitation evenly adsorbed on the wood fiber, so as to improve the quality of man-made board, and reduce the dosage of wax (straight paraffin wax content is 1.5% ~ 2.0% of dry plate, and dosage of emulsifying wax is 0. 3% ~ 1. 2%).At present, the domestic production in addition to the dry medium density fiberboard (MDF) using the straight paraffin method outside, the rest of the various kinds of fiber board and particieboard emulsified wax production has gradually been adopted.Man-made emulsified wax production process can be used D phase emulsification method: 1, stirring edge will oil additive to contain water, surfactant phase (D), the formation of O/D type gel emulsion;2 to gel emulsion, add water phase in the continuous phase from surfactant aqueous phase transformation, become the O/W emulsion.Fiber board and particieboard sheet for different features, the requirements on the wax emulsion concentration is different also.Fibreboard is commonly 5% ~ 5%, and particieboard is about 30%. 

2 the paper sizing agent is indispensable additives in papermaking process.Sizing process is divided into internal sizing and surface sizing.Internal sizing can improve the water resistance of paper, reduce paper fluff, also helps to improve the smoothness of paper and paper light stability;Surface sizing can prevent bad cardboard surface of starch adhesive in the pulp, paper smooth and beautiful, improve the smoothness of the paper, so as to improve the quality of paper.Paper sizing agent at present abroad tend to use high free dispersed rosin size mixed with paraffin adhesive glue, including paraffin for emulsified wax.Domestic internal sizing in papermaking industry adopt traditional rosin size, surface sizing with paraffin wax, and emulsifying wax to use much.Papermaking emulsified wax production technology and man-made emulsified wax production process is the same.