water soluble synthetic polymer (Maciborski‚ and Salamone)‚ while Borax is a natural mineral with many household uses. It can be used as herbicide‚ to bleach teeth‚ as a household cleaner‚ and a laundry booster‚ to name a few (Helmenstine). Figure 1: chemical diagrams of PVA(Adkins) and Borax (Lee)‚ respectively The two combine to form a slimy eco-friendly substance due to the crosslinking between polymer chains (“Nuffield Foundation”) Polymers are composed
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in the consumer market‚ stemming from the rise of synthetic fibers starting in the 1940’s‚ glass fiber and carbon fibers have dominated the market for composites due to their superior mechanical properties. From the 1970’s onward‚ petroleum-based fibers replaced natural fiber so that‚ worldwide‚ the cropping of natural fibers entered into steep decline‚ causing economic stagnation in the producer regions. In addition to the competition with synthetic fibers‚ innovation in transport facilities also
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Polyester Manufacturing Polyester fibers‚ the synthetic fibers‚ are long chain polymers derived from coal‚ air‚ water‚ and petroleum. They are formed through chemical reaction between an acid and alcohol. In this reaction‚ two or more molecules combine to make a large molecule whose structure repeats throughout its length. These molecules are very stable and strong. There are variations in the compositions and therefore in the properties of polyester fibers. Types of Polyester The polyester
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Latest Invention: Tea Bag that Uses Nanotechnology to Clean Drinking Water One of the latest inventions developed by researchers from Stellenbosch University in South Africa is a one of a kind "tea bag" that makes use of nanotechnology to clean drinking water‚ making it free from contaminants and bacteria. It would be interesting to note that the "tea bag" is made of the same material that is used to make the actual tea bags. The only difference is that in the Stellenbosch researchers’ invention
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an abstract approach to portray an altered style of melancholy. Barton’s ‘The Highway is a Disco’ was flawlessly painted in the modern era of 2014‚ made with synthetic polymer paint and fibre tipped pens on canvas‚ measuring at 240 x 180 cm. Similarly‚ another body of work painted exquisitely‚ ‘Of Pollen’ was designed with synthetic polymer paint in the contemporary era. It measures 163
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Rafael Christian L. Bojador Environmental Science CAS-01-401P “Is the world overpopulated?” Facts: Overpopulation is a generally undesirable condition where an organism’s numbers exceed the current carrying capacity of its habitat. The term often refers to the relationship between the human population and its environment‚ the Earth‚] or smaller geographical areas such as countries. Overpopulation can result from an increase in births‚ a decline in mortality rates‚ an increase in immigration
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devulcanization technology researchers and developers were identified throughout the world‚ however‚ only a very small number of devulcanization systems are now operating. These are primarily small-capacity systems‚ which are devulcanizing natural or synthetic rubbers (as opposed to devulcanizing the mixture of rubbers recovered from waste tires). The general types of devulcanization technologies identified and analyzed in the study are shown below. Technology Basis of Processing Zone of Reaction
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Cleaning and Polishing Hard Gelatin Capsules 1. Salt Polishing- NaCl 2. Cloth Dusting- The capsules after the filling operation are rubbed with cloth. This gives shine to the capsules along with elimination of the materials that are tough to remove. 3. Brushing- This is done with the help of brushes and generally vacuum is employed inorder to remove the dust. 4. Pan Polishing- Acela-cota pan 1. Pan polishing: Accelacota coating pan is generally employed for this process. In order
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The Apparel Industry: Issues and Solutions 1 Please note: This report focuses on environmental impacts and solutions associated with apparel‚ a second report will present the equally complex social responsibility (SR) issues associated with this industry’s life cycle including fair trade‚ fair labor and animal well-being issues. Published by Labeling Ecologically Approved Fabrics (LEAF) Special thanks to: Coral Rose‚ Founder Eco-Innovations Sustainable Textile Strategies Dr. Gwendolyn Hustvedt-Professor
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since the use we make of natural forces produces the result we have caused. One such recent matter is the use of plastic. The term "plastics" covers a range of synthetic or semi-synthetic organic condensation or polymerization products that can be molded or extruded into objects or films or fibers. They consist of long chains of polymers. Their name is derived from the fact that in their semi-liquid state they are malleable‚ or have the property of plasticity. Plastics vary immensely in heat tolerance
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