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Two young girls holding up slime made using glue, baking soda, shaving cream, food coloring, and contact lens solution. Slime is a homemade toy typically created using a combination of water, glue, and borax. Videos of people playing with slime became popular on social media in the mid-2010s, which made it an international trend.
The original coral-colored Silly Putty is composed of 65% dimethylsiloxane (hydroxy-terminated polymers with boric acid), 17% silica (crystalline quartz), 9% Thixatrol ST (castor oil derivative), 4% polydimethylsiloxane, 1% decamethyl cyclopentasiloxane, 1% glycerine, and 1% titanium dioxide. [6] Silly Putty flowing through a hole
The plastic kits and covers are mostly made of synthetic polymers like polythene, and tires are manufactured from polybutadienes. [1] However, due to the environmental issues created by these synthetic polymers which are mostly non-biodegradable and often synthesized from petroleum, alternatives like bioplastics are also being considered. They ...
Polymer engineering is generally an engineering field that designs, analyses, and modifies polymer materials. Polymer engineering covers aspects of the petrochemical industry, polymerization, structure and characterization of polymers, properties of polymers, compounding and processing of polymers and description of major polymers, structure property relations and applications.
Slime is a toy product manufactured by Mattel, sold in a plastic trash can and introduced in February 1976. [2] It consists of a non-toxic viscous, squishy and oozy green or other color material made primarily from guar gum. [3]
The mechanical properties of biodegradable polymers can be enhanced with the addition of fillers or other polymers to make a composite, blend, or copolymer. Some fillers are natural fiber reinforcements such as silk nanofibers, bamboo, jute, in addition to nano-clay, and carbon nanotubes as alternatives to name a few.
The (left) magnetic slime robot inside a model of a stomach, (right) the robot by itself. A magnetic slime robot [1] is a self-healing soft robot made up of polyvinyl alcohol, borax and neodymium magnet particles. It was co-created by professor Li Zhang of Chinese University of Hong Kong. [2]
Polyvinyl acetate is also the raw material to make other polymers like: Polyvinyl alcohol −[HOCHCH 2]−: Polyvinyl acetate is partially or completely hydrolysed to give polyvinyl alcohol. This reversible saponification and esterification reaction was a strong hint for Hermann Staudinger in the formulation of his theory of macromolecules. [12]