LDPE
LDPE LDPE accounts for 60% of the total plastics production of plastic bags and most commonly found solid waste (Gajendiran et al., 2016). LDPE is also frequently used in consumer packaging, bags, bottles, and liners. LDPE has a density range of 0.910 - 0.940 g/cm3. Compare to HDPE the carbon chain of LDPE are highly branched. It has a high degree of short and long chain branching, which means that the chains do not pack into the crystal structure as well. The lower tensile strength and increased ductility are due to the strong intermolecular forces (d-I-d attraction is less). Hence, due to such properties and durability, LDPE has wide variety of applications (High Density vs Low Density Polyethylene, 2017). LDPE, were invented by accident, when scientists in Germany and Italy were able to create an aluminium based catalyst …show more content…
It represents up to 65% of the synthetic material produced and they are mainly used for manufacturing bags, bottles, disposable containers. If such polymers reach the water bodies, due to their low density they tend to remain on the surface of the water which can be derived from its basic source such as coal, natural gas and oil. The drastic increases in the use of polyethylene materials have not been accompanied by a corresponding development of methods for the safe disposal of the plastics or degradation of these materials. Hence, such kinds of polymers are seen as environmental threat because they are difficult to degrade, (Mukherjee and Chatterjee, 2014). To be as thorough as possible, the two most widely used plastics in production were focused upon: High and Low density polyethylene. The study also includes extensive literature review on the possible methods for the biodegradation of the High-Density Polyethylene (HDPE) and Low Density Polyethylene (LDPE) using various sources like using bacteria, fungi, and some genetically engineered bacterial
Dieppe Dbq
590 Words | 3 PagesThe Battle of Dieppe, or Operation Jubilee, was a calculated collaborative allied infantry and naval attack in an attempt to take the port of Dieppe and the surrounding beaches. Before David O’Keefe’s scholarly contribution to the events surrounding Dieppe, it was largely understood that Dieppe was a trial run for amphibious attacks against the German front in France. It was seen as a huge disaster as sixty-eight percent of allied soldiers that engaged the Germans were either killed or wounded. There is a multitude of reasons as to why the number of casualties were so high. The most apparent of which being that the port, and surrounding beaches, were heavily guarded with artillery, machine guns, barbed wire, and German soldiers.
Valley Forge Dbq
449 Words | 2 Pages“Poor food, hard lodging, cold weather, fatigue, nasty clothes, nasty cookery, vomit… why are we sent here to starve and freeze?”-Dr. Albigence Waldo “What we know today was not known in late December 1777, victory seemed a long way off; in fact for many, it seemed unlikely.” Had I been a soldier at Valley Forge, would I of given up? If I had the choice, I would have stayed, because of loyalty to our leaders and country, to stay a powerful nation, and for the freedom of me and the people of America. I would have stayed in the war, because I am loyal to our leaders and to America.
Progressive Era Dbq
786 Words | 4 PagesDuring the late 1800s and early 1900s, Progressive reformers worked to improve the social, political, and economic problems in American society. Throughout this time, muckrakers helped reformers by revealing injustices to Americans through journalism, books, campaigns, photographs, and political cartoons. Poor working conditions, low quality of consumer products, and inferior democracy were present in American life during the Progressive Era; reforms such as state actions, the Meat Inspection Act, and Direct Primary helped to eliminate these corruptions. An issue society faced during the Progressive Era was poor working conditions. In Upton Sinclair’s book, The Jungle, he writes that if a person found anyone who uses knives in this factory,
Dred Scott Dbq
443 Words | 2 PagesRoger Taney was the chief justice from 1836- 1864. He made the ruling for the Dred Scott case. The ruling that sent northerns into a blaze and led southern 's to rejoice. Dred Scott was a slave, who was taken to a free territory. Taney ruled that slaves were property and that they didn’t have the right to sue as it says in document number 9.
North America Dbq
763 Words | 4 PagesColonization of North America was heavily influenced by power, wealth, and morality. The "... many encounters between the Native Americans and explorers and African people were forcibly enslaved and brought to the colonies to provide labor.", are part of power ,wealth ,and morality and impacted the colonization of North America. Religious persecution, slavery and greed are direct negative consequences of power ,wealth ,and morality. The definition of power is to have control over someone or some group.
Zappos
430 Words | 2 Pages1. Does Zappos effectively focus on stakeholder happiness, and how does this approach affect the ethical culture? At Zappos, Zappos higher goal is to provide happiness. Whether our customers get a new pair of shoes or perfect clothing, as well as in dealing with friendly customer service representatives when the happiness or their employees to become part of the culture.
Progressive Movement Dbq
1369 Words | 6 PagesDuring the first two decades of the twentieth century, a large and diverse number of Americans claimed the political label “Progressive.” Progressives all shared a common fundamental belief of developing methods to counteract against the political and social issues of the time. They thrived in tackling some of the most crucial issues of society, as they were able to improve the conditions of the urban environment, increase the democratic influence of citizens, and sap most corruption out of the government. However, as the Progressive Movement successfully managed to cover those areas, it was limited to solving the issues of only white Americans, failing to represent the minorities, especially African Americans.
Our Oceans Are Turning Into Plastic Are We Summary
541 Words | 3 PagesTo recycle plastic one must use low temperatures. Since low temperatures are used residue is still left behind. If higher temperatures were used than toxins would be released. The truth is, plastic does not go away.
Valley Forge DBQ
520 Words | 3 PagesValley Forge was a winter camp 18 miles away from Philadelphia, where George Washington took his troops during 1777 and 1778. The British army is comfortable in Philadelphia, while Valley Forge has harsh conditions with the cold weather and the lack of supplies. I will not reenlist when my 9-month enlistment is over. I will not reenlist for these reasons, diseases, lack supplies, and cold weather and smoky air.
Valley Forge Dbq
216 Words | 1 PagesHook/Background Information: Valley Forge was a place for heros but many left. Soldiers died of hunger and harsh weathers. Was Valley Forge that bad? Valley Forge was a place of misery. Many soldiers abandoned the forge and others abandoned tragically.
Progressive Era Dbq
1349 Words | 6 PagesLargely in reaction to the Industrial Revolution, the middle and upper class citizens of the United States saw a need of immediate reform with the hope of getting rid of monopolies and political corruption. Determined to make the nation more democratic while taking advantage of the Capital System based on competition between companies, the Progressive Era came into play, highlighted by rust-busting, political reform and social improvements. Although success was limited, the progressive movement had changed the whole nation’s landscape: with the effort of the tireless reformers and the federal government, the nation saw an economy with more competitions, a better working and living condition provided for the workers; with people more involved
Progressive Era Dbq
1121 Words | 5 PagesDuring the time of the Progressive Era in 1900s-1920s, the majority of the American believed that the industrialization, immigration, and the urbanization had produced critical social disorders and believes that reforms were needed to be reshaped America. They also believed that it was time to eliminate the problem caused by the corruption in the government and promote the improvement in order to address the social and economic problems. People like Theodore Roosevelt and W.E.B.Du Bois also accepted that change was needed to improve and develop. The major changes were made in social, economic and political reforms. But, was the Progressive Era a success?
T. L. O. Case Study
393 Words | 2 PagesT.L.O. Is Tracy Lois Odem. He went to Piscataway High School in New Jersey. She went to school one day and was searched by officials of her school because she was suspected for having cigarettes. The administrators found cigarettes, marijuana, and a list of people who owe her money. She was charged with possession of marijuana.
New World DBQ
1255 Words | 6 PagesThe invasion of the "New World" by European explorers was a significant event which brought on many consequences. The Europeans, who has been isolated for around a thousand years, were eager to explore this new territory, and impose its beliefs upon the natives. The Exploration and colonization of the New World by Europeans impacted the native peoples in both a positive and negative way. The Spanish introduction of many new trades, as well as agricultural techniques helped the Natives grow society and provided a new source of income. However, the introduction of many foreign diseases, and the violent push to convert people to Christianity greatly outweighed the positive effects of the colonization of the new world.
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