Page 40 - Plastics News September 2016

FEATURES

Bio based construction polymers market to grow well until 2024

Bio based epoxies market is estimated to witness moderate growth over the next few years on
account of its wide range of application

Growing adoption of renewable products coupled with inde?nite number of times but in practice some defects
increasing infrastructure spending is very likely to fuel may eventually take place. The curing process is that by
bio based construction polymers market. which the shape is moulded by heat and pressure to form
the hard shape.
According to report published by Grand View Research,
global bio based construction polymers market is Thermosetting Plastics:
expected to reach USD 33.26 billion by 2024, Rising bio-
based polymer demand in various applications in the The shape is ?rst prepared by softening under heat and
construction sector such as cladding panel, FRP bridge then cured with the use of further heat. After this stage,
section, and glazing sealant is expected to remain a key no further heat will deform the moulded shape once
driving force for the market growth. chemical decomposition has occurred. In general these
plastics have giant three dimensional molecules.
Applications of plastics in civil engineering building
construction are many. The prime reason for this is the Plastics are manufactured in different forms such as
property of plastics which makes it durable, non-corrosive, moulding pipes, sheets and ?lms. They are formed or
low cost and many others. Ideally there are two types of expanded to produce materials of low density. Dissolved
Plastics, namely Thermoplastic and Thermosetting plastics in solvents or dispersed as emulsions, they are used in
distinguished by the physical property. paints, varnishes and adhesives. At present, plastics ?nd
use in buildings mainly in thin coverings, panels, sheets,
Thermoplastics: foams, pipes etc. skilful use of plastics will expand the
usefulness and life of conventional building materials and
This type can be softened by heating after they have been help them to function more ef?ciently and economically.
cured and remoulding cycle can in theory be repeated an

Uses of plastics in buildings

No. Material Use Form in which it is commonly used Normal colour
1 Expanded polystyrene Thermal insulation
2 Expanded polyvinyl chloride Thermal insulation Thin sheets in slabs 12mm thick White
(PVC)
3 Foamed urea formaldehyde Boards 20 to 50 mm thick Yellow brown
4 Foamed phenol formaldehyde
5 Foamed polyurethane Thermal insulation Foamed in situ White
6 Expanded ebonite Thermal insulation
7 Polythene Thermal insulation Sheets and blocks Deep red
8 Poly propylene Thermal insulation
Damp-proo?ng, plumbing Sheets and blocks or foamed in situ Brown
9 Unplasticised PVC Domestic drainage, but water
over?ow tanks Sheets Brown or black
10 Acrylic resins Rainwater goods, ventilation,
11 Nylon ducts, pipes of water mains Thin sheets, pipes, cisterns Transparent to black
Sinks and baths
12 Phenolic resins Cold water ?ttings, window Various
13 Melamine furniture
Adhesives for laminates Various
Laminates Dark

Sheets Many

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