Plastic net tells how to identify plastic pallets

Plastic net tells how to identify plastic pallets

Appearance identification

By observing the appearance of plastics, it is possible to initially identify a large category of plastic products: thermoplastics, thermosets or elastomers. Generally, thermoplastics have both crystalline and amorphous types. The appearance of the crystalline plastic is translucent, opaque or opaque, and it is transparent only in the state of the film, and the hardness is soft to horny. Amorphous is generally colorless, completely transparent when no additives are added, and hardness is harder than horny rubber (additives such as plasticizers are often added at this time). Thermoset plastics usually contain a fill that is impervious to the material and is transparent if it is free of filler. The elastomer has a rubbery feel and a certain stretch ratio.

2. Heating identification

The heating characteristics of the above three types of plastics are also different, and can be identified by heating. Thermoplastics soften when heated, are easy to melt, and become transparent when melted, often pulling the filaments out of the melt, and are generally susceptible to heat sealing. The thermosetting plastic is heated until the material is chemically decomposed, and the original hardness is not softened, the size is relatively stable, and the carbonization is performed at the decomposition temperature. When the elastomer is heated, no flow occurs until the chemical decomposition temperature, and the material decomposes and carbonizes to the decomposition temperature.

With the continuous strengthening of food safety concepts and the high hygiene requirements of the pharmaceutical industry, plastic pallets are favored and sought after by the food and pharmaceutical industries for their anti-corrosion, anti-moisture, anti-corrosion, anti-insect, and non-mold.