what are the 2 main categories of plastic?
76512
There are two main types of plastics and these are named Thermoplastics and Thermosetting Plastics. Thermoplastics are made up of lines of molecules with few cross linkages. This allows them to soften when heated and to be bent into a variety of shapes and forms.
913266
The seven types of plastic include: Polyethylene Terephthalate (PETE or PET)
463281
['Paper bags are made from a renewal resource—trees. ... ', 'Plastic bags are made from nonrenewable fossil fuels—petroleum or natural gas.', 'Both paper and plastic bags can be made with recycled materials.']
1131507
["Plastics. Many plastics can't be recycled separately. ... ", 'Metals. Many metal items are classed as general waste. ... ', 'Ceramics. Ceramics including crockery, ornaments and mugs can be classed as general waste.', 'Glass. ... ', 'Packaging Materials. ... ', 'Cleaning Materials. ... ', 'Wallpaper. ... ', 'Bagged Vacuum Dust.']
528389
2 Plastic Recycling Symbol #2: HDPE. HDPE (high density polyethylene) is a versatile plastic with many uses, especially when it comes to packaging. It carries low risk of leaching and is readily recyclable into many types of goods.
408726
['Plastic Bags – Shopping, grocery, garbage bags.', 'Styrofoam – Packing materials, cups, containers.', 'Clothing – Any form of clothing, including shoes.', 'Paper Food Storage – Pizza boxes, takeout food containers, potato chip bags, candy wrappers, bread bags.', 'Outside Materials – Logs, stumps, sticks, rocks, dirt.']
1076282
['Shipping envelopes.', 'Plastic lumber.', 'Panelling.', 'Rubbish bin liners.', 'Furniture.', 'Film plastic.', 'Rubbish bins and compost bins.']
1378708
Not all types of plastic, though, are suitable for all types of food. Many food grade plastic containers fall into the high density polyethylene — or HDPE — category. It has excellent chemical resistant properties making it suitable for a wide range of foods and other products.
95190
Plastics are used for the production of several thousands of items. Although fiberglass also looks like plastic, it is actually not a type of plastic. The main difference between fiberglass and plastic is that fiberglass is inorganic whereas plastic is organic.
275638
['Step 1: Collection. The first step in the recycling process is always collecting the plastic material that is to be recycled. ... ', 'Step 2: Sorting. ... ', 'Step 3: Washing. ... ', 'Step 4: Resizing. ... ', 'Step 5: Identification and separation of plastics. ... ', 'Step 6: Compounding.']
177964
Plastics are made from natural materials such as cellulose, coal, natural gas, salt and crude oil through a polymerisation or polycondensation process. Plastics are derived from natural, organic materials such as cellulose, coal, natural gas, salt and, of course, crude oil.
583222
Thermoset Plastics vs Thermoplastics. When classified by chemical structure, there are two generally recognized classes of plastic materials: Thermosets, having cross-linked molecular chains, and Thermoplastics, which are made up of linear molecular chains. Thermoset polymers require a two-stage polymerization process.
865106
#2 - HDPE (High-Density Polyethylene) HDPE plastic is the stiff plastic used to make milk jugs, detergent and oil bottles, toys, and some plastic bags. HDPE is the most commonly recycled plastic and is considered one of the safest forms of plastic. ... Products made of HDPE are reusable and recyclable.
318499
Synthetic polymers include polyethylene (used in plastic bags); polystyrene (used to make Styrofoam cups); polypropylene (used for fibers and bottles); polyvinyl chloride (used for food wrap, bottles, and drain pipe); and polytetrafluoroethylene, or Teflon (used for nonstick surfaces).
80807
Natural Fibers There are two broad categories of textiles: natural and synthetic.
561381
#2 - HDPE (High-Density Polyethylene) HDPE is the most commonly recycled plastic and is considered one of the safest forms of plastic. It is a relatively simple and cost-effective process to recycle HDPE plastic for secondary use.
135909
['Low-density polyethylene (LDPE)', 'High-density polyethylene (HDPE)', 'Polypropylene (PP)', 'Polyvinyl chloride (PVC)', 'Polystyrene (PS)', 'Nylon, nylon 6, nylon 6,6.', 'Teflon (Polytetrafluoroethylene)', 'Thermoplastic polyurethanes (TPU)']