It is understood that paraffin is a colorless to white translucent lump. Pure paraffin is white, and paraffin containing impurities is yellow. It is tasteless and odorless. Creamy feel. Soluble in ether, chloroform, benzene, petroleum ether, volatile oil or various fatty oils, slightly soluble in ethanol. It has stable chemical properties and does not react with acids, alkalis, oxidants and reducing agents. It will turn yellow under ultraviolet irradiation, can burn and decompose, and is stable at room temperature.
The types of paraffin wax are as follows:
According to the different degree of processing and refining, it can be divided into three types: fully refined paraffin wax, semi-refined paraffin wax and crude paraffin wax. Each type of wax is divided into different varieties according to its melting point, usually every 2°C, such as 52, 54, 56, 58 and other brands. Crude paraffin has a high oil content and is mainly used to make matches, fiberboards, canvas, etc.
Microcrystalline paraffin
Microcrystalline paraffin is mainly composed of paraffin hydrocarbons, cycloalkanes and some linear hydrocarbons, with a molecular weight range of approximately 500-1000 . This is a relatively fine crystal that is soluble in non-polar solvents but insoluble in polar solvents.
Liquid paraffin
There are many types of liquid paraffin, and their lubrication effects are also different. It has good initial lubrication effect and good thermal stability during extrusion processing. However, due to poor compatibility, the product will easily become sticky if too much is used.
Polyethylene wax (ACPE for short)
Polyethylene wax refers to low molecular weight polyethylene or partially oxidized low molecular weight polyethylene with a molecular weight of 1500-25000 . It comes in the form of granules, white powder, lumps and milky white wax. It has excellent fluidity, electrical properties and demoulding properties.
Semi-refined paraffin
It is a granular white solid, and its relative density increases with the rise of the melting point. The product has good chemical stability, moderate oil content, good moisture-proof and insulation properties, and good plasticity. Candles produced from semi-refined paraffin wax have a concentrated flame that is smokeless and does not shed tears. Used for making candles, crayons, wax paper, general telecommunications equipment, short circuit and light industry, chemical raw materials, etc.
Chlorinated paraffin
Chlorinated paraffin is a golden or amber viscous liquid that is non-flammable, non-explosive and has minimal volatility. Soluble in most organic solvents, insoluble in water and ethanol. It will slowly decompose when heated to above 120°C and release hydrogen chloride gas. Oxides of metals such as iron and zinc will promote its decomposition. Chlorinated paraffin is an auxiliary plasticizer for polyvinyl chloride. Low volatility, non-flammable, odorless and non-toxic. This product replaces part of the main plasticizer, which can reduce product costs and reduce flammability. Mainly used in PVC cable materials and water pipes, floor materials, films, artificial leather, etc.
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