High and low temperature resistance and coloring performance of hollow board plastic products
DATE：2020/11/24 8:40:14 / READ： / SOURCE：This station
High and low temperature resistance and coloring performance of hollow board plastic products
The high temperature resistance of hollow board plastic products, plastic and steel, the heat resistance of plastic products produced by hollow board equipment is not ideal. However, as long as people choose the appropriate place for different plastics according to their thermal performance characteristics, the shortcomings of poor heat resistance of plastics can be avoided. Such as polystyrene plastic can be competent for making tea cups, lunch boxes and other daily necessities. If plastics are required to be resistant to boiling water, plastics with higher heat resistance such as polypropylene and PP should be used. Under the conditions that the heat resistance of polypropylene is no longer adequate, plastics with higher heat resistance should be selected. The heat resistance of plastics is investigated by the following three indicators, namely, heat distortion temperature, thermal decomposition temperature and heat-resistant oxygen aging performance. Therefore, it is necessary to select plastic materials reasonably and carefully according to the heat resistance of plastics in order to maximize the strengths and avoid weaknesses and play its role. www.handern.com Hollow Board EquipmentBecause the macromolecular structure of the main component polymer in various plastics is different from the flexibility of the molecular chain, and at the same time, their crystallinity is also different. Therefore, the low temperature resistance of various plastics is also very different. For example, unmodified polypropylene has the characteristics of low temperature brittleness, while plastics such as polycarbonate, polyphenylene ether and polytetrafluoroethylene have a lower brittle temperature and low temperature resistance, and are often used as engineering plastics that require cold resistance. www.handern.com Hollow Board Equipment
Hollow board plastic products are transparent and easy to color. The products produced by the hollow board equipment are translucent to transparent, but plastics are often opaque. This is related to factors such as additives in plastics. That is, the transparency of plastic products is related to the variety, formulation, crystallinity, crystallization rate, and crystallinity of plastic products. Particle size and material thickness are related, which directly affect the light transmittance and refractive index of the plastic. In addition, there are also storage and use conditions that affect plastic aging. For example, both organic glass and polycarbonate in polyacrylate have high transparency; according to the formula of transparent polyvinyl chloride, transparent products such as transparent polyvinyl chloride bottles and plates can be made. Many plastics have good transparency because they are made into thin films, such as polyester and polyolefin films. www.handern.com Hollow Board Equipment
Hollow board product plastic has the characteristics of easy coloring. After the plastic is colored, the appearance and performance of the plastic product are affected due to the composition and performance of the dye (or pigment). Even in the case of improper selection of colorants, it will promote the aging of plastic materials. Therefore, the choice of colorant needs to be selected reasonably according to the variety of plastics, processing and molding conditions, and product use environment. www.handern.com Hollow Board Equipment
Author：admin