Harmful Effects of Plastic Essay Example for Free

Harmful Effects of Plastic EssayComposition and Types of PlasticA bendable is made up principally of a binder together with plasticizers, fillers, pigments, and other additives. The binder gives a plastic its main characteristics and usually its name. Thus, polyvinyl chloride is both the name of a binder and the name of a plastic into which it is made. Binders may be natural materials, e.g., cellulose derivatives, casein, or milk protein, but ar more commonly synthetic resins. In either case, the binder materials consist of very(prenominal) long chainlike molecules called polymers. Cellulose derivatives are made from cellulose, a naturally occurring polymer casein is similarly a naturally occurring polymer. Synthetic resins are polymerized, or built up, from abject simple molecules called monomers. Plasticizers are added to a binder to increase flexibility and toughness.Fillers are added to improve particular properties, e.g., hardness or resistance to shock. Pigments are used to hold various colors. Virtually any desired color or shape and many combinations of the properties of hardness, durability, elasticity, and resistance to raise up, cold, and acid fucking be obtained in a plastic. there are two basic types of plastic thermosetting, which can non be resoftened after being subjected to heat and pressure and thermoplastic, which can be repeatedly softened and remolded by heat and pressure. When heat and pressure are applied to a thermoplastic binder, the chainlike polymers slide past each other, giving the material plasticity. However, when heat and pressure are initially applied to a thermosetting binder, the molecular chains become cross-linked, thus preventing any slippage if heat and pressure are reapplied.-Be Wise With PlasticsPlastics are everywhere and in most cases are very affordable and convenient. But, increasingly scientists are finding that a hidden cost may be our health. some common plastics release harmful chemicals into our air, foods, and drinks. Maybe you cant see or taste it, but if youre serving your dinner on plastic, youre likely eating a little plastic for dinner.Beyond the immediate health risks, our increasing use of plastics is causing an enormous amount of enduring pollution. every bit of plastic that has ever been created still exists (except for the little bit that has been incinerated, which releases nephrotoxic chemicals). In the ocean, plastic waste is accumulating in giant gyres of debris where, among other thing, tip are ingesting toxic plastic bits at a rate which will soon make them unsafe to eat.Plastic is generally toxic to produce, toxic to use, and toxic to dispose of. Luckily, we can all make safer choices.What to DoThe best thing to do is to reduce your use of plastic. Look for natural alternatives like textiles, solid wood, bamboo, glass, blameless steel, etc. Also, look for items with less (or no) plastic packaging. If you do buy plastic, opt for products you can recycle or re-purpose (e.g. a yogurt tub can be re-used to store crayons). And, get to know your plastics starting with this guide The most common plastics have a resin code in a chasing arrow token (often found on the bottom of the product). PET (Polyethylene Terephthalate)AVOID reciprocal Uses Soda Bottles, Water Bottles, Cooking Oil Bottles ConcernsCan leach antimony and phthalates.HDPE (High Density Polyethylene) SAFERCommon Uses Milk Jugs, Plastic Bags, Yogurt CupsPVC (Polyvinyl Chloride, aka Vinyl) AVOIDCommon Uses Condiment Bottles, Cling Wrap, Teething Rings, Toys, Shower Curtains Concerns Can leach lead and phthalates among other things. Can also off-gas toxic chemicals. LDPE (Low Density Polyethylene)SAFERCommon Uses Produce Bags, Food Storage ContainersPP (Polypropylene) SAFERCommon Uses Bottle Caps, Storage Containers, DishwarePS (Polystyrene, aka Styrofoam) AVOIDCommon Uses Meat Trays, scintillate Food Containers CupsConcerns Can leach carcinogenic styrene and estrogenic al kylphenols Other this is a catch-all category which includesPC (Polycarbonate) AVOID can leach Bisphenol-A (BPA). It also includes ABS (Acrylonitrile Butadiene Styrene), SAN (Styrene Acrylonitrile), Acrylic, and Polyamide. These plastics can be a safer option because they are typically very durable and resistant to high heat resulting in less leaching. Their drawbacks are that they are not typically recyclable and some need additional safety research. New plant-based, biodegradable plastics like PLA (Polylactic Acid) also fall into the 7 category.