Polyester can be divided by two types which is orthophthalic and isophthalic

What is the properties of Orthophtalic resin?

I) General purpose

II) Used in low end product

III) Greater strength

IV) Heat resistance

The process below suitable for using polyester resin EXCEPT:

Thermoset can be defined as "Hardened permanently after being heated once and cannot be recycled”

Polymerization requires that each small molecule have at least two reaction points or functional groups.

What is the reaction show in the picture?

Shelf life is an arbitrary time for practical storage of a thermoset system.

What is the process involved in production of vinylester resin?

Properties of Vinylester:

I) Corrosion resistance

II) Withstand water absorption

III) Marine industry

IV) Low viscosity

The structure in the figure show as:

Properties of epoxy resin:

I) Good chemical resistance

II) Low shrinkage

III) Low adhesive strength

IV) High mechanical properties

Raw materials to produce Phenolic resin :

I) Phenol

II) Formaldehyde

III) NaOH

IV) Calcium Carbonate

Phenolic can be divided by three types which are Novolac, Resol and Bisphenol

What is the structure show in Figure?