Year1
- 含量：
- 99
- 外观：
- 白色
- 包装：
- 25公斤
Also known as wax, it is a low molecular weight polyethylene with a molecular weight between - and a melt viscosity of 3, a softening point of 3°C, a viscosity between - and a hardness of -. At present, the price of high-quality polyethylene wax on the market is generally more than 3 yuan/ton, while the price of fake and inferior products is only less than 3 yuan/ton. Polyethylene wax is a commonly used external lubricant in processing and has some internal lubrication effects. The dosage of high-quality polyethylene wax generally does not exceed .
At present, there are a large number of fake and inferior polyethylene waxes on the market. After analysis, this polyethylene wax is made of waste polyethylene (plus paraffin wax). Among the waste materials, there are high molecular weight ones and some And, there are even a small amount of industrial or domestic waste. The viscosity of fake polyethylene wax is much greater than that of regular polyethylene wax. With this kind of processed products, not only the lubrication effect is poor, but also serious precipitation and adhesion will occur during the processing. The exit of the die (mandrel) or the inner diameter of the sizing sleeve, especially during the production process of the conical twin-screw extruder, not only causes adhesion, but also causes the product to discolor or even decompose, interrupting normal production operations. Causes losses to the manufacturer. In addition, the low molecular content of inferior polyethylene wax is too high, and the products produced have precipitation phenomena, which seriously affects the use of downstream customers.
Why choose
Use less dosage and use high-quality polyethylene wax It will not increase the cost per ton of the product a lot, but if cheap and inferior polyethylene wax is used to cause abnormal production, the loss will be far greater than the price difference between high-quality polyethylene wax and fake and inferior polyethylene wax. This is why it is recommended that manufacturers use high-quality polyethylene wax.
In the polyethylene production process, a small amount of oligomers, namely low molecular weight polyethylene, also known as polymer wax for short, will be produced. Because of its excellent It is widely used due to its cold resistance, heat resistance, chemical resistance and wear resistance. In normal production, this part of wax can be directly added to polyolefin processing as an additive, which can increase the gloss and processing of the product. Performance. Polymer wax is a good insensitivity agent, and can also be used as a dispersing lubricant for plastics and pigments, a moisture-proof agent for corrugated paper, a hot-melt adhesive and ozokerite, car beauty wax, etc.
Polymer wax is A non-toxic, odorless, non-corrosive, white or slightly yellow solid with a relative molecular mass of -. It has good chemical stability, excellent temperature resistance, drug resistance and electrical properties at room temperature, and has a relatively wide range of applications. It is widely used as a raw material for chlorinated polyethylene, a modifier for plastics, a coating agent for textiles, and an additive to improve the viscosity of crude oil and fuel oil
Application and mechanism of polymer wax in coatings
Waxes for coatings are mainly added in the form of additives. Wax additives generally exist in the form of water emulsions. They are initially used to improve the surface anti-expansion properties of the coating film. They mainly include improving the smoothness, scratch resistance and waterproofing of the coating film. In addition, it can also affect the rheological properties of the paint. Its addition can make the orientation of solid particles such as aluminum powder in metallic flash paints uniform. In matte paints, it can be used as a matting agent. According to its particle size and The particle size distribution and matting effect of wax additives are also different. Therefore, wax additives are suitable for both glossy paints and matte paints. Microcrystallization modification can improve the surface properties of water-based industrial coatings. .For example -, after adding, the smoothness, anti-adhesion, anti-scratch and disinfection effects are enhanced, and it can effectively inhibit pigment precipitation. The added amount is...< />
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