Plastic granules refer to the granular form of plastic, which is generally divided into more than 200 types, and can be further subdivided into several thousand types. Common plastic granules include general-purpose plastic, engineering plastic, and special plastic.
General-purpose plastics include polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyester, polyurethane, and others.
Engineering plastics include nylon, polytetrafluoroethylene, polyoxymethylene, polycarbonate, and others.
Recycled PP plastic, which is a semi-transparent, waxy material that is lighter than polyethylene, has better transparency than polyethylene, and is more rigid than polyethylene. It is mainly used for basins, buckets, furniture, films, woven bags, straps, bottle caps, and car bumpers.
Recycled PE plastic is a milky-white, semi-transparent, waxy material that feels slippery and flexible to the touch and can be slightly stretched. Generally, low-density polyethylene is softer and has better transparency, while high-density polyethylene is harder. It is mainly used for film, tote bags, water pipes, and oil drums.
PS is polystyrene plastic, which is easy to color, has good transparency, and is often used to make lampshades, toothbrush handles, toys, and electrical components. It is resistant to acid and alkali corrosion but can be dissolved in organic solvents such as chloroform, dichloroethane, and banana water.
PVC is polyvinyl chloride plastic, which is bright in color, corrosion-resistant, and durable. However, due to the addition of toxic auxiliary materials such as plasticizers and anti-aging agents during the manufacturing process, its products are generally not used for food and drug storage.
ABS is a plastic polymer made of acrylonitrile, butadiene, and styrene. It is colorful, heat-resistant, and strong, and its surface can be plated with chrome, nickel, and other metal films. It is used to make piano keys, buttons, knife racks, TV casings, umbrella handles, and more.
PA is nylon plastic, which is tough, strong, and wear-resistant. It is commonly used to make combs, toothbrushes, clothes hooks, fan blades, net bags, fruit packaging bags, and other items. It is non-toxic but should not be in contact with acids and bases for long periods of time.