Which of the method is relavent for both thermosetting and thermoplastic materials?

Q: List different types of polymerization techniques. Discuss

A:

Q: Chemistry Name (a) a thermoplastic, (b) an elastomer, and (c) a fiber that is produced…

A: Answer -  ionic chain polymerization - Ionic chain polymerization is a chain-growth reaction where…

Q: Product: Nail Cutter 1. Why did we use metal in making nail cutterl? Why not ceramics or polymer?…

A: The solution is shown below

Q: High-density polyethylene (HDPE) is opaque while low-density polyethylene (LDPE) is transparent.…

A: Polyethene is widely used tharmoplastic now a days.Based on molecular structure it can be…

Q: 33......................can be heating and reshaped is. O A. Thermoset. O B. Thermoplastic.

A:

Q: Elastic stresses can move the dislocations in the material linh the increase in its stre

A: The elastic stress field that surrounds dislocations is one of its most important features. The…

Q: If you increase the temperature during a tensile testing of a thermoplastic specimen, what will…

A: Interpretation -  If you increase the temperature during a tensile testing of a thermoplastic…

Q: Composite materials must contain more dispersed material and less matrix material.

A: Composite material must contain more dispersed material compare to matrix material.

Q: rubber has lower crosslinking density than general thermoset such as epoxy materials True or False

A: True

Q: Dr Kootsookos was cooking breakfast one day and the saucepan handle got hot and crumbled in her…

A: The polymer which is used for making saurcepan handle name is given below.

Q: Define the terms monomer, plastic, thermoplastic, thermosettingplastic, elastomer, copolymers, and…

A: Polymer chemistry is the branch of chemistry which involves the study of synthesis, bonding,…

Q: A material that has the ability to stretch a great deal and then return to its original dimensions…

A: In material science and physics, elasticity is the ability of a material to resist a distorting…

Q: Explain the term, metals are shiny, malleable, and ductile?

A: Metals have a tendency to lose electrons in order to attain a stability or stable electronic…

Q: 32. The polymer not cross - ling between chain is. O A. Thermoset. OB. Thermoplastic.

A: Here we have to predict the type of polymer obtained when net -cross linking occur between the…

Q: Moulds for blow moulding can be made using aluminium whereas moulds for injection moulding are…

A: injection molds should have a high accuracy match between shape parts so material stream is…

Q: LDPE or low-density polyethylene is one type of polymer resin that produces a plastic that is…

A: We have been asked to state the reason for the differences between LDPE and HDPE. The differences…

Q: Explain why should acetylene gas cylinders used for gas welding be erected in upright position?

A: Natural gas is primarily derived from deep underground petroleum deposits. Since gases are lighter…

Q: Why are covalently bonded materials generally less dense than those that are bonded ionically or…

A: Since the case when the bonds are directional, that is they are present in a particular direction…

Q: نقطة واحدة نقطة واحدة can be heating and ......33 .reshaped is A. Thermoset. O B. Thermoplastic. O…

A: Thermoplastic polymer are those polymer which can be reshaped by changing the temperature is called…

Q: Which of the following is an example of thermoplastics? A) Bakelite B) Melamine C) PVC D) No option…

A: Thermoplastics are those type of plastics which can transformed into different shapes without…

Q: 35. The polymer is if heated too much, they burn is. A. Thermoset. B. Thermoplastic.

A: Thermo plastics soften on heating whereas thermosetting plastics do not soften on heating.…

Q: Describe how Zn is used to protect the surface of steel products. What is the name of this process?

A: Zinc metal has a number of characteristics that make it a well-suited corrosion protective coating…

Q: The process of heat softening, molding and cooling to rigidness can be repeated for which plastics?…

A: Thermoplastics are plastic polymers that soften when they are heated, allowing for molding, and…

Q: Flax fibers are extracted using the process. O coiling O retting O finishing O ginning O sizing

A: Flax is a flowering plant and is a type of food and fibre crop. It is used to make linen bedsheets,…

Q: If a polymer is said to be thermoplastic, this means that it O a. will not be brittle even at very…

A: Thermoplastic is a plastic which gets soft when it's heated and get brittle at low temperature. It…

Q: What makes pyrex glass heat resistant?

A: Pyrex glass: It is the type of glass that is manufactured using sand, silica, and boric oxide by…

Q: Explain why an elastomer under tensile load contracts on heating. Compare this with the behaviour of…

A: Elastomers are unique polymers that have good elastic properties. In other words, an elastomer is…

Q: Why does a transparent polymer turn opague in the necked region when tested in tension.

A: Answer -  Transparent polymers are usually opaque because of light scattering on the numerous…

Q: Which is superior in strength Metal or Plastic?

A: Metal is always super to plastic in case of tensile strength.  The reason for this strength in metal…

Q: List down one processing method for production of composite tubes made of fiber reinforced…

A: There are different method for production of composite  tube

Q: Why are impurities added to silicon dioxide in the glass making process? To increase mechanical…

A: Impurities like boric oxide , sodium oxide and aluminium are used while making the glass

Q: How does a polypropylene face mask become polymeric carbon dots?

A: Answer - polypropylene face mask  - These Disposable Face Masks are manufactured from polypropylene…

Q: What conditions would prohibit the use of thermoplastic polymer

A: The polymer which can be melted and recast indefinitely called thermoplastic polymer.

Q: Q3:- What are the types of defects in crystalline structure? Explain with example and with any kind…

A:

Q: Ceramic O Polymer Composite O Metal

A: What is given in the picture and the year 1800's is the start of what ? Answer is given below.

Q: Which of the following materials is most suitable for the manufact thermoplastic pipe? Briefly tell…

A: From the above three materials only one material is most suitable for the manufacture of…

Q: Explain the packaging listed below: - Compact cubic structure; - compact packaging(HCP) - Cubic -…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: 3. Why is casein plastic no longer used in large-scale manufacturing?

A: Following is the reason for not using casein plastic for large scale manufacturing.

Q: Which of the following statement is incorrect about forming operations of metal done below the…

A: If the metal foaming process is done below the recrystallization temperature then it is called cold…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.