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What plastic additives may be added to plastic bags?

by:Supouches Packaging     2022-09-07
What plastic additives may be added to plastic bags? Plastic products, including plastic packaging bags, will add some plastic additives to improve product performance. What additives will be added? There are many types of plastic additives, such as plasticizers, stabilizers, fillers, colorants, foaming agents, lubricants, etc. The amount of most additives used is relatively small, but they play a very large role (1) The basic function of plasticizers is to improve the ductility and softness of the resin. Many synthetic resins have plasticity, but the ability of plasticity is not the same. In order to make the resin easier to plasticize and give the product softness, some low-molecular substances are normally added to the resin. These low-molecular substances are called plasticizers. Plasticizers are liquid or low-melting substances, and should have good miscibility with resins. (2) Fillers Adding fillers can improve the dimensional stability, heat resistance and hardness of products, and can also reduce the cost of plastic products. (3) Stabilizers can also be said to be antioxidants, and their basic function is to avoid or slow down the aging and deterioration of polymer materials. Unsaturated double bonds in plastics are attacked by oxygen atoms, heat and light, causing them to break and generate free radicals, thereby causing chain reactions, breaking molecular chains or forming chain cross-links, resulting in reduced strength or brittleness of plastic finished products. The function of antioxidants is to delay the decomposition of plastics due to oxidation and prolong the life of plastic products. (4) Other additives According to their basic functions and application standards, various additives in plastic products such as colorants, lubricants, antistatic agents and foaming agents can also be added to plastic products. Resin has good compatibility. For plastic products used in food packaging bags, the standard additives need to be odorless, tasteless, non-toxic and non-dissolving, so as not to affect the quality, flavor and hygienic safety of food. What does knowledge extension plastic consist of? Plastic is composed of two parts: resin and additives. 1) Resin Resin is a pure polymer, which is the main component of plastic, accounting for 40% to 100% of the quality of plastic. The types, properties and proportion of resins in plastics determine the performance of plastics 2) Additives Plastic additives are secondary components of plastics and can be used to improve various properties of plastics. In the production process of plastic products, different types of additives need to be added to meet different production, processing and use requirements. Additives are dispersed in the molecular structure of plastic products, and will not seriously affect the molecular structure of plastic products, but can improve their characteristics or control the cost of chemical substances. The addition of additives can promote plastic products to improve the basic functions of materials such as process performance, physical properties, and chemical properties, and improve the physical and chemical properties of materials. According to different types, additives can be divided into plasticizers, colorants, heat stabilizers, lubricants, antioxidants, flame retardants, foaming agents, etc. Plastic flexible packaging: professional custom packaging bags, plastic bags/non-woven bags, PE/PO/PP/CPE/PPE/OPP/PVC/EVA scan QR code for consultation
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