Formosa Plastics Corporation, USA: Olefins Fire and Explosions in 2005 1.0 INTRODUCTION Accidents are an inevitable part of life. Children learn this at an early age by bumping their head, scraping their knees, or falling off the swings. They learn that sometimes painful experiences just happen, seemingly without cause or reason. These children carry these lessons into adulthood, and then project their tolerance for accidents onto their families and occupation. The chemical industry, while
Ocean Plastic Pollution I chose to discuss Ocean Plastic Pollution. I retrieved an article from the LiveScience.com which is a website that covers scientific news. The author of the article I chose, “Plastic Trash in Oceans May Be ‘Vastly’ Underestimated”, is Jeanna Bryner who is the LiveScience Managing Editor. She is part of the LiveScience organization. This article was published April 27th, 2012. The mission of the report is to inform the general public that plastic debris in the ocean is increasing
Pectin is a complicated branched structure of acidic structural polysaccharides, established in fruits and bast fibers. Most of the structure consists of homopolymeric partially methylated poly-α-(1-4)-D-galacturonic acid residues, but there are substantial 'hairy' non-gelling areas of alternating α-(1-2)-L-rhamnosyl-α-(1-4)-Dgalacturonosyl sections containing branch-points with mostly neutral side chains (1-20 residues) of mainly L-arabinose and D-galactose (rhamnogalacturonan-I). Pectin is the
Plastic bottles are everywhere, whether they are soda bottles, water bottles or even reusable bottles. Each year the number of plastic bottles filling up landfills is increasing by a considerable amount, which is a serious problem and can result in grave consequences for the environment. The average time estimated for a plastic bottle to decompose is approximately seven hundred years. One way to solve this problem is to recycle plastic bottles into the polyester by a process called polymerization
would actually be pretty dangerous. After what happened to their client the bar decided to switch from glasses and glass bottles to polymer ones, which don’t shatter, they are so strong that they are bulletproof. “Doctors want drinks to be served in plastic to stop 'glassing' Up to 300 people a week are believed to be injured when glasses are used as weapons in pub brawls.” (BBC, News, Society, Health) So polycarbonate is definitely solving a big safety issue. Glass used in bars is not the only problem
essential role in our everyday life. For polymers range from plastics, PVC, and Styrofoam to key structures in the human body like DNA and proteins which are key components to the human body that makes it possible for each of us to live and be unique. So with out polymers in our body we would be dead, and with out them in our society it would be a drastically changed for the worse to say the least Polymers are also commonly referred to as plastics so now you can put in to perspective how much we use polymers
Where does all the plastic go. Every bit of plastic that has been created is still here. This is because plastic is one-hundred percent non-biodegradable! Even the most degraded plastic down to polymers cannot be digested by bacteria (Laist, 1997). If global issues like starvation and climate change are not enough to stress on, the weight of an issue literally churning in the Pacific Ocean is startling. For decades the majority of the world’s population has not been properly educated on the nature
Denture teeth can be made of acrylic poly(methyl methacrylate) (PMMA) or composite resins. PMMA is a polymer - a material made the from joining of methyl methacrylate monomers. Properties of PMMA include resistance to abrasion, chemical stability and a high boiling point. (Jun Shen et al. 2011). However, weak flexure and impact strength of PMMA are of concern as they account for denture failure. (Bolayir G, Boztug A and Soygun K. 2013). Composite denture teeth are made of a three distinct phases
Stiffness The effect that this additive has on the polymer in terms of stiffness is that the fillers are very useful because it makes the polymers very strong and stiff. This makes it hard to break. Service life The effect of fillers on polymers is that they are very beneficial because they don’t get ruined for a long time. Glass fillers are
When comparing the rubber tiles used with other covering materials, it can be seen that the most feasible characteristics of the material are the high level injury protection and shock absorbing factors. Also the SBR tiles were coloured in their whole material and therefore cannot fade or be washed out as a result. The tiles are also known to be attrition and weather resistant. Finally, the rubber tiles do not require any maintenance works and do not need to be replaced after implementing and therefore
Wilbert Plastic Services In the early days manufacturers came to us for a specific thermoformed or injection molded part or parts for a product they were making. Over the years we noticed that, more and more, they were coming to us for entire subassemblies and more complex parts that might incorporate both thermoformed and injection molded parts. Based on that experience, and our knowledge of the pressures that manufacturers are under to increase efficiency and reduce cost, it became obvious
Plastics Engineering Injection Molding Most people have never heard of injection molding, however the products that are produced through this process are as common as a toothbrush, a compact disk, or even drinking glasses. Injection Molding is one of the principal processes used in converting plastics into useful products. An injection molding machine can be large or small but work through the same general process. The machine heats a thermoplastic material that in its pre-processing state
As a kid I always wanted to play the drums. When I was three years old my godmother gave me my first drum. It was a blue plastic remo drum that I love and I still have. It has white stripes that go vertically and it has two black remo pin strip drum heads. Drumheads are the surface, which you strike with a drumstick to produce a sound. The drum came with a pair of cheap plastic remo brand drumsticks. That I hardly use became if I do, I would probably break the drumsticks. One day when I was in sixth
Americans come in contact with many different forms of plastics and think nothing about it. Whether its drinking from water bottles purchased at your local super market to eating leftovers from food storage containers in your refrigerator, plastics are everywhere in the world and it seems as if they’re here to stay. But have you heard of the chemical Bisphernol-A? Also known as BPA, this chemical compound is found in just about every plastic that you come in contact with and has created quite the
of screwdriver: The designing aspects of a screwdriver consist of a handle and a shaft. The shaft will be made of tough steel in order to prevent twisting or bending while usage. The handle can either be made with wood or rubber also with plastic. Mostly plastic material will be used for making the handle in order for better handling and for safety purpose. Materials for manufacturing Screwdriver Tip : Later a new variety of steel material is been used in the industry by the composition of different
materials other than what was used 50 years ago. Today kettles are made using materials such as plastic, copper, stainless steel and may other products such as rubber and high resistance metals for the heating element. The stainless steel kettle that has been chosen for this report is made from many of these materials. The materials present in this kettle are stainless steel, copper, thermosetting plastic, rubber and a heating element which is made of a high resistance metal. Stainless steel is one
source: http://www.pesch.cz/upload/produkty_velky/282.jpg The suitable alternative material in place of Carbon Fiber for the rear spoiler is Fiber Glass. It has similar properties as compared to Carbon Fiber. It is also a type of fiber reinforced plastic but here the reinforcement fiber is glass fiber. Fiber Glass is a strong lightweight material. But Fiber-glass is not as strong as Carbon fiber, it is less brittle, and its raw materials are cheaper. The bulk strength of Fiber-glass and weight are
So, for his birthday we gave it to him in parts, an arm, a hand, a whole leg, and finally the body, under a sheet because it was too big to wrap. We put an old wig on her, something my sister and I used to play dress up with, so her hair looked plastic-y and disheveled. My sister painted her fingernails the only color we had, a free giveaway at Estee Lauders, Burnt Tangerine. I cannot remember the mannequin's name. I want to say Janie, my dad's girlfriend at the time because she too had blond hair
which is not attached to the paper and will, therefore, form its own roll when separated. 2. Unroll until the other end is reached, which is attached to the paper by tape. Tear film gently from the paper when loading the film onto a reel or into a plastic apron. 3. At this point, handle film by the edges to avoid fingerprints on the film's picture area. 4. Fingerprints inflicted by pressure or moist fingers may show up on the negative and in the finished print. 5. To remove the film from a
scientist Karl Wilhelm in 1784, but he first thought it was a compound, rather than an element. In 1810, Sir Humphrey Davy named it Chlorine, from the Greek word meaning "greenish-yellow". Chlorine is used in bleaching agents, disinfectants, monomers (plastics), solvents, and pesticides. It is also used for bleaching paper pulp and other organic materials, preparing bromine, (a poisonous element that at room temperature is a dark, reddish-brown), tetraethyl lead, and killing germs in water, particularly