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.
Plastics Comparison Chart
| Material | Clarity | Impact Strength |
|---|
| PET (Oriented or Stretch Blown Polyethylene Terephthalate) | Excellent | Good |
| HDPE (High Density Polyethylene) | Poor | Good |
| PVC (Polyvinyl Chloride) | Good | Fair |
| PP (Polypropylene) | Poor | Fair |
Acrylic and polycarbonate are transparent plastics that are stronger than many other clear plastic sheet materials and are often used in architectural glazing applications when transparency and superior mechanical properties are required.
Plastic 2: High-Density Polyethylene (HDPE)
HDPE products are safe and are not known to transmit any chemicals into foods or drinks, making this plastic a low health risk variety, according to Chemical Safety Facts. This plastic is most often used for milk or water jugs, laundry detergents and shampoo bottles.Decoding Plastic ID Symbols
| Plastic Name | Common Household Items |
|---|
| HDPE- high density polyethylene | Milk and juice bottles, dishwashing and laundry detergent, grocery bags |
| PVC - polyvinyl chloride | Bottles, food trays, rigid sheets used for packaging, electrical insulation, irrigation pipes |
Tough and durable plastic materials
- HDPE.
- High Impact Polystyrene.
- KYDEX® Thermoplastic Sheet.
- LDPE.
- Noryl®
- PAI.
- PCTFE. Fluoropolymer with outstanding dimensional stability, mechanical properties, and temperature range.
- PETG. Transparent plastic sheet with good impact resistance and outstanding thermoforming characteristics.
Decoding Plastic ID Symbols
| Plastic Name | Common Household Items |
|---|
| HDPE- high density polyethylene | Milk and juice bottles, dishwashing and laundry detergent, grocery bags |
| PVC - polyvinyl chloride | Bottles, food trays, rigid sheets used for packaging, electrical insulation, irrigation pipes |
For bars and restaurants that need to provide straws to those who legitimately need them, they can carry paper straws.
- 2) Plastic Water Bottles.
- 3) Coffee Cups with Plastic Lids.
- 5) Plastic Bags for Produce.
- 6) Plastic Take Out Containers.
- 7) Plastic Wrap.
- 8) Plastic Cutlery.
- 9) Plastic Party Cups.
- 10) Six Pack Rings.
Plastic fibers also are made by an extrusion process. Liquid resin is squeezed through thousands of tiny holes called spinnerets to produce the fine threads from which plastic fabrics are woven. Injection Molding – is the second most widely used process to form plastics.
The 5 Most Common Plastics & Their Everyday Uses
- Polyethylene Terephthalate (PET)
- High Density Polyethylene (HDPE)
- Polyvinyl Chloride (PVC)
- Low Density Polyethylene (LDPE)
- Polypropylene (PP)
The majority of conventional black plastic packaging is coloured using carbon black pigments which do not enable the pack to be sorted using Near Infra-Red (NIR) technology widely used in plastics recycling. As a result, black plastic packaging commonly ends up as residue and is disposed of in landfill or incinerated.
Identify the Plastic Number
If you find as #2, #4, or #5 plastic, those are fairly safe to reuse. These contain low levels of polyethylene thermoplastic, low-density polyethylene, and polypropylene.Plastics are used to make bicycle helmets, child safety seats and airbags in automobiles. They're in the cell phones, televisions, computers and other electronic equipment that makes modern life possible. They're in the roofs, walls, flooring and insulation that make homes and buildings energy efficient.
their are several plastic products which are always in demand and are used in every day life.
- *Tupperware.
- Plastic bottles.
- Water pipe hose.
- *PVC pipes.
- Lunch boxes.
- Light switches are made of plastic.
- *Closures and lids of several bottles.
- *Clothes (Polyester) are made out of PET plastic.
Because plastics and their ingredients are pervading our oceans and waterways, invading the bodies of humans and wildlife, and filling landfills (with new and once recycled plastic) the Ecology Center recommends eliminating plastics from your life, as much as possible.
05/9?To AVOID: Code 3. This code contains polyvinyl chloride (V or Vinyl or PVC). Harms: It is the most toxic and the most harmful form of plastic. It contains bisphenol A (BPA), lead, phthalates, mercury, dioxins and cadmium.
Topping the list of items found polluting our beaches and waterways were 2.4 million cigarette butts, which contain plastic filters. That was followed by 1.7 million food wrappers and 1.6 million plastic water bottles.
This shouldn't be a surprise: Overall, worldwide, most of the plastic trash in the ocean comes from Asia. In fact, the top six countries for ocean garbage are China, Indonesia, the Philippines, Vietnam, Sri Lanka and Thailand, according to a 2015 study in the journal Science.
The most visible and disturbing impacts of marine plastics are the ingestion, suffocation and entanglement of hundreds of marine species. Marine wildlife such as seabirds, whales, fishes and turtles, mistake plastic waste for prey, and most die of starvation as their stomachs are filled with plastic debris.
They found that China and Indonesia are the top sources of plastic bottles, bags and other rubbish clogging up global sea lanes. Together, both nations account for more than a third of plastic detritus in global waters, according to a report in The Wall Street Journal.
Topping the list of items found polluting our beaches and waterways were 2.4 million cigarette butts, which contain plastic filters. That was followed by 1.7 million food wrappers and 1.6 million plastic water bottles.
An estimated 8 Million tons of plastic enters our oceans every year. There are 5.25 trillion pieces of plastic waste estimated to be in our oceans. 269,000 tons float, 4 billion microfibers per km² dwell below the surface.
Growing Concerns about Plastics
Plastic debris in the oceans was first observed in the 1960s, a decade in which Americans became increasingly aware of environmental problems.While it's tough to say exactly how much plastic is in the ocean, scientists think about 8 million metric tons of plastic enter the ocean every year. That's the weight of nearly 90 aircraft carriers. These plastics come in many different forms.
To summarize, there are 7 types of plastic exist in our current modern days:
- 1 – Polyethylene Terephthalate (PET or PETE or Polyester)
- 2 – High-Density Polyethylene (HDPE)
- 3 – Polyvinyl Chloride (PVC)
- 4 – Low-Density Polyethylene (LDPE)
- 5 – Polypropylene (PP)
- 6 – Polystyrene (PS)
- 7 – Other.
Better known as polystyrene or Styrofoam, No. 6 plastics are found in disposable plates and cups, meat trays, egg cartons, carry-out containers, aspirin bottles and compact disc cases.
Natural fiber cloth. Natural cloth can replace plastic bags. Sustainable clothing made from organic cotton, wool, hemp, or bamboo won't shed plastic fibers when washed.
disadvantages of plastics
- Disadvantages of Plastics are.
- Flammable – This is definitely an advantage in that they can be melted down, however smoldering plastics can release toxic fumes into the environment.
- Cost of Recycling – While recycling is a plus, recycling is a very costly endeavor.
Plastic packaging helps protect and preserve goods, while reducing weight in transportation, which saves fuel and reduces greenhouse gas emissions. From computers and cell phones to televisions and microwaves, durable, lightweight and affordable plastics have helped revolutionize the electronics we rely on every day.
