28 Feb 2019
It is synthesized from bisphenol A and diphenyl carbonate, and is commonly used in the manufacture of kettles, cups, bottles and the like. In the process of making PC, the raw material bisphenol A should be completely made into plastic structural component, and should not be released in use, but the unqualified product can not be done, a small part of bisphenol A can not be completely converted into plastic, and it will be heated. It is released into food and is harmful to children and the fetus. (The 2011 PC bottle event is the result of this.) The most common water cup material at present, many department stores and car manufacturers use the water cup of this material as a gift. Commonly used in: life is often used in transparent cups, bottles, drinking buckets, CD substrates, lenses and lampshades. Advantages: good light transmission, good heat resistance and impact resistance, resistant to weak acid, weak alkali and neutral oil. Note: UV resistance and weather resistance are...
20 Feb 2019
Too high a temperature will release harmful substances, can not be placed in the microwave to heat, do not use it to install hot food, but also can not contain strong acid (if juice) and strong alkaline substances. Divided into two types of foaming and non-foaming: foaming is a common foam plastic lunch box; unfoamed such as yogurt bottles; unfoamed light folds have white marks, usually can be torn by hand. Commonly used in: ice containers, fast food boxes, cheap transparent products, foam plastics, CD boxes, water cups, snack boxes, insulation materials and so on. Advantages: transparency, heat resistance, commonly used to install high-temperature foods, such as bowls of instant noodles (now more paper containers), good cold resistance, a variety of shaved ice also love to use this container. Note: If PS encounters strong acid or strong alkaline substances, it will produce harmful substances. Be careful when using PS equipment. Do not install acidic or alkaline foods. Do not pa...
Low density polyethylene (LDPE)
11 Feb 2019
Plastic film and cling film, paper box, milk box, beverage box and other packaging boxes are used as inner film. It is mostly used on plastic film and other utensils, and should not be used as a beverage container. Commonly used in: hose packaging for plastic wrap, plastic film, toothpaste or facial cleanser. Advantages: Excellent ductility and use in life. Note: LDPE products should be softened or even melted at higher temperatures, and should be avoided at 100 °C above the boiling water temperature. The preservative film will have a hot melt phenomenon when the temperature exceeds 110 ° C. Therefore, before the food is placed in the microwave oven, the wrapped plastic wrap is removed.
PVC: polyvinyl chloride
01 Feb 2019
PVC is now used to make some cheap artificial leather, foot mats, sewer pipes, etc.; due to its good electrical properties and certain self-flame retardant properties, PVC is widely used in the manufacture of wire and cable sheaths. In addition, PVC is widely used in the industrial field, especially where high acid and alkali corrosion resistance is required. Commonly used for: raincoats, PVC plastic conduits, water pipes, plastic switches, sockets. Advantages: high strength, weather resistance and good corrosion resistance. Note: This material can only be used at temperatures up to 81 ° C, so it cannot be used at higher temperatures. A large number of plasticizers (plasticizers such as DOP) and heat stabilizers containing heavy metals are used in the production of PVC, and the synthesis process is difficult to prevent the presence of free monomers. When high temperature and oil are encountered, toxic substances are easily precipitated, which is easy to cause cancer. Therefore, ...
HDPE: high density polyethylene
26 Jan 2019
Suitable for food and medicine, cleaning products and bath products, shopping bags, trash cans, etc. At present, most of the plastic bags used in supermarkets and shopping malls are made of this material, which can withstand high temperatures of 110 ° C, and plastic bags for food can be used to hold food. HDPE is widely used in various translucent, opaque plastic containers and has a thick hand. Commonly used in: white medicine bottles, opaque shampoo bottles, yogurt bottles, chewing gum bottles, etc. Advantages: It is more resistant to various corrosive solutions and is used in cleaning products, bath products, etc. Note: Bottles containing cleaning products and bath products can be reused after cleaning, but these containers are usually not cleaned, and the residual substances will become a hotbed of bacteria. It is best not to recycle them. It is not recommended as a food and beverage for recycling. The container is used.
2016 GULFOOD MANUFACTURING
17 Jul 2018