Ultrasonic welding is a method of bonding together two parts made of the same or chemically compatible materials using high frequency ultrasonic vibrations that create a solid state weld between them. The advantage of using this technique with plastics is that within seconds a high strength, gas and water tight bond is formed without screws, glue, threads, solder or any other type of bonding material. Parts that have been welded do not need to be left in a jig for curing, … Read more
One of the most popular plastics available today, Nylon was first patented in 1935 by
Wallace Carruthers, a scientist working for Dupont®. Nylon is a thermoplastic made from petrochemicals. It is a semi-crystalline plastic, that it has both amorphous (unstructured) as well as crystalline (structured) regions. When heat is applied it does not begin to slowly melt like amorphous resins, rather it stays firm until it reaches its melting point and then melts all at once. … Read more
Fiber reinforced plastic (FRP), also known as fiber reinforced polymer, is in fact a
composite material constituting a polymer matrix blended with certain reinforcing materials, such as fibers. The fibers are generally basalt, carbon, glass or aramid; in certain cases asbestos, wood or paper can also be used.
The Formation of FRPs
Going back to the basics, there are two processes through which a polymer is developed: step-growth polymerization and addition polymerization. … Read more
For industries looking for a plastic engineering design approach that is cost-effective as well as innovative, plastic bearing may be the solution.
The bearing industry leverages different materials for the manufacture of diverse bearing components and plastic is one of the most prominent among them. The plastic materials go through a series of processing so that the performance as well as life is maximized through obtaining desirable properties. … Read more
History of Plastic Manufacturing
Plastics have indeed come a long way since their creation by Alexandre Parkes in the form of Parkesine, a cellulose based semi- synthetic thermoplastic substance. Although Parkesine gradually became obsolete owing to soaring development costs, plastic manufacturing continued unabated and the world witnessed the advent of synthetic resin, cellophane wrap, rayon fabric, polyethylene PVC (polyvinyl chloride), and many others. Soon, we were inundated with bottles, cups, … Read more