Plastics-reinforced plastics and adhesives, Mechanical Engineering

Plastics, Reinforced Plastics And Adhesives


Organic materials particularly that occur in nature like wood and leather have been employed for engineering causes. The modern developments whereby weight reduction, easy fabrication, corrosion resistance and superior appearance are being attained have focused attention on the materials termed as plastics.

Plastic is utilized as a class name for a group of materials such can be formed or moulded into several shapes. Plastics are synthetic materials and chemically they relate to yet larger group of materials termed as polymers.

Polymers are materials of complicated nature consisting of various units typically joined in a chain as like structure. The word mer in Greek implies a unit. A monomer is a one unit. Various monomers join together to make a polymer. As an illustration one can consider a polymer termed as polyethylene in given figure.

                                            1559_Plastics, Reinforced Plastics And Adhesives.png


                                                               Figure: Polyethylene Polymer

The section that is repeated in polyethylene is C2H4 or ethylene.

Polymers are categorized into three broad divisions, name are: elastomers, fibres and plastics. We will seem the properties and applications of plastics that have now become very commonly utilized engineering materials. Even if much less in strength than metals, plastics are mostly preferred for their low density. Additionally a lot of plastics can be machined simply; they have good surface finish and are not corroded in environment. Plastics do not conduct electricity and thus are employed in domestic electrical fittings. They are increasingly being employed for furniture, piping, and interiors of airplanes, cars and buildings. The mechanical strength of plastics is mostly improved via reinforcing them along with fibres which has specified rise to a various class of materials termed as reinforced plastics. These materials contain very good strength for low density. As before as in 1960 year an average car employed only 12 kgf of plastic that increased to 100 kgf in eighties and as greatly as to 150 kgf in nineties. Additionally, to above properties and ease of assembly, elimination of surface finishing, reduction of vibration and noise and low cost form them very popular in engineering applications of mechanical.

Posted Date: 2/27/2013 4:16:53 AM | Location : United States

Related Discussions:- Plastics-reinforced plastics and adhesives, Assignment Help, Ask Question on Plastics-reinforced plastics and adhesives, Get Answer, Expert's Help, Plastics-reinforced plastics and adhesives Discussions

Write discussion on Plastics-reinforced plastics and adhesives
Your posts are moderated
Related Questions
why can''t we use petrol as a fuel for diesel engines?

Q. Show Application to Gyroscope? A fiber optic Gyroscope is used to detect the mechanical rotation of the interference of light. Two beams travel along the fiver in opposite d

Explain Macroscopic Approach - Thermodynamics 1. In this method a fixed quantity of matter is considered without taking into account the events taking place at molecular level.

A Composite from Multidirectional Laminates                                              Figure: A Composite from Multidirectional Laminates Glass fibres usually u

what is second law of thermodynamics

The processing of payroll for the 10,000 workers in a large rm can either be done using 1 hour of computer time (signed by K) and no clerks or with 10 hours of clerical time (sign

Getting Familiar: An entrepreneur wishing to set up an industry must first formulate a comprehensive plan for setting the industry for its success. For this, he/she should have co

#what is porosity in welding is this different from pin hole

Working, specification construction of Lancashire boiler