The document discusses different types of insulating materials including thermal, electrical, and sound insulation. For thermal insulation, it outlines common materials like asbestos, cork, aluminum foil and their properties and uses. Electrical insulation materials include mica, asbestos, rubber and porcelain. Their requisite qualities and uses are also noted. Sound insulation aims to reduce sound transmission and lists reasons for its use including noisy neighbors and audio recording studios. Common sound insulating materials and their applications are also provided.

2. Prepared By: Noor Ahmed 17CE71

3. Insulating Materials
Thermal Insulation
Electrical Insulation
Sound Insulation

4. Group Members
No Name Roll no topic
1 Noor Ahmed 17CE71 Thermal Insulation
2 Shah Jahan 17CE25 Thermal Insulation
3 Abdul Majeed 17CE05 Thermal Insulation
4 Safi ullah 17CE45 Electrical Insulation
5 Adnan Rehmat 17CE91 Electrical Insulation
6 Zameer Ahmed 17CE63 Electrical Insulation
7 Meer Mazar Khan 17CE81 Electrical Insulation
8 Sanniya Shah 17CE19 Sound Insulation
9 Kulsoom Afzal 17CE21 Sound Insulation
10 Fathima Jameel 17CE17 Sound Insulation

5. List Of Topics:
 Insulating Materials
=> Types
 Thermal Insulation
=> Types
=> Properties
=> Uses
 Electrical Insulation
=> Types
=> Properties
=> Uses
 Sound Insulation
=> Types
=> Reasons
=> uses

6. Insulating Material
Materials that retard or stop the flow of
• Heat
• Electricity
• Sound
through them may be broadly defined as insulating
materials.
Insulating Materials are mainly divided into Three Types:
• Heat Insulators
• Electricity Insulators
• Sound Insulators

7. Insulating Material

8. Thermal Insulators
Thermal Insulation is the process intended for the
restriction of heat losses and gains in buildings and
installations. From the technical perspective, thermal
insulation is applied in order to reduce heat transfer
between to environments with different
Temperatures.
Following are the types of heat Insulators:
1. Asbestos
2. Cork
3. Magnesium Plastic
4. Aluminum Foils
5. Cellular Rubber
6. Mineral wool

9. Thermal Insulators

10. Types of Thermal Insulators
1. Asbestos:
2. Cork:
It is one of the best heat insulating material for big and small applications
alike. Insulating sheets made from asbestos mixing some clay in the
presence of a suitable binder are used for insulating boilers and also for
bulk head lining in ships.
It is light weight external tissue or bark of the oak tree. It has been found
to be good heat insulator and is used much for the same purpose.
3. Magnesium Plastic:
This consist of thoroughly blended mixture of hydrated magnesium
carbonate and asbestos. It is applied as a plastic mass cover over the
surface from which the escape of Heat is to be controlled.

11. Types of Thermal Insulators
4. Aluminum foils:
These are essentially thin sheets made from aluminum and its alloys. When
wrapped over steam pipes and other appliance, it serves as a good
insulating material.
5. Cellular Rubber:
It is special variety of rubber made extra porous during manufacture. This
rubber is used as an insulator in cold storage.
6. Mineral Wool:
It is also called rock wool . This material is obtained commercially from
impure limestone. The rock is first heated to melting temperature, Jet of air or
water is made to fall on streams of this molten rock which solidifies into wool
like structure. Clay and dolomite are also used for making mineral wool.

12. Properties of Thermal Insulators
Thermal Insulators should posses following properties:
• It should have very low thermal conductivity;
• It should have a very high softening point.
• It should be stable to thermal shocks, i.e. should
not break on repeated heating and cooling.
• It should be stable chemically and physically at hig
h temperature for prolonged period at stretch.
• It should be resistant to moisture and vibration
and have good strength too.

13. Thermal Insulation

14. Why Do We Thermally Insulate our Equipment's?
• Most used forms of insulation for businesses and
homes.
• To decrease the rate at which heat is transferred
from the interior to the exterior of a building
• In order to contain heat as long as possible, ther
mal insulation is installed in the roof and walls of
a building

15. Uses Of Thermal Insulators
• In order to minimize heat losses in industry and also i
n construction of buildings, thermal insulation is
widely used.
• Thermal insulation in buildings is an important
• factor to achieving
thermal comfort for its occupants. Thermal
insulation reduces
unwanted heat loss and also reduce unwanted
heat gain.

16. Electrical Insulation
An electrical insulator is a material whose internal elec
tric charges do not flow freely; very little electric curre
nt will flow through it under the influence of an
Electric field. This contrasts with other materials, semic
onductors and conductors, which conduct electric curre
nt more easily.
Following are the types of Electrical Insulation:
1. Mica
2. Asbestos
3. Rubber
4. Paper
5. Porcelain
6. Glass
7. Cotton

17. Electrical Insulation

18. Electrical Insulation
1. Mica:
This is a good stable material even when exposed to the elements. It is a
good thermal conductor while being an insulator. Sheet mica is easily
stamped and shaped for electrical components. Mica is very important for
the most common types of capacitors
2. Asbestos:
Asbestos in Wiring Insulation and Other Building Materials. In order to
prevent fire as well as electrocution, insulation is used around electrical
wiring to prevent sparks or electrical charges that could hurt people or their
property
3. Rubber:
Insulators are used to protect us from the dangerous effects of electricity flo
wing through conductors. Sometimes the voltage in an electrical circuit can be
quite high and dangerous.

19. Electrical Insulation
4. Paper:
Paper insulation in many applications due to pure cellulose
having outstanding electrical properties. Cellulose is a
Good insulator and is also polar, having a dielectric
constant significantly greater than one.
5. Porcelain:
Porcelain insulators are made from clay, quartz or alumina a
nd feldspar, and are covered with a smooth glaze to shed w
ater Porcelain has a dielectric strength of about 4–10 kV/mm.
6. Glass and cotton:
Glass is actually an insulator. It doesn't allow the flow of elect
rons easily from atom to atom
I assume you mean thermal insulation (cotton is also a fairly g
ood electric insulatorand so is air so the fluffy balls insulate el
ectrically as well!)

20. Electrical Insulation
Following are the requisite qualities for an electrical insulator,
• A very poor electrical conductivity i.e. a very high electrical r
esistivity
• Resistance to deterioration on heating
• Very low thermal expansion
• Non-Inflammable
• Chemical Stability at high temperature,
• High Strength hardness and resistance to abrasion.
Qualities of electrical Insulator:

21. Electrical Insulation
Properties:
• High Resistance
• The best thermal insulators have the lowest thermal
conductivity; this is the property of a material that measures
how well it can conduct heat through its mass.
• Heat Resistance.
• Air Permeability.
• Thermo-Insulating Materials.

22. Electrical Insulation
Uses:
1. It used for splitting two conductors
2. Insulators are used to protect us from the dangerous effects of el
ectricity flowing through conductors
3. An insulating material used in bulk to wrap electrical cables
4. specifically to refer to insulating supports used to attach electric p
ower distribution or transmission lines to utility poles and transmi
ssion towers

23. Sound Insulation
Sound insulation relates to the overall ability of a building
element or building structure to reduce thesound transmissio
n through it
Two types of sound insulation might be referred to:
airborne sound insulation and impact sound insulation.

24. Sound Insulation
Impact sound insulation
Relates to the reduction of footstep sound from people walking
on a floor structure. It is determined by the impact sound level in
the room below. A suspended ceiling system can be used to
improve the impact sound insulation and therefore reduce the
impact sound level.

25. Sound Insulation
Airborne sound insulation:
Sound is transmitted through most walls and floors by setting
the entire structure into vibration. The higher the transmission
loss of a wall, the better it functions as a barrier to the passage of
unwanted noise.

26. Sound Insulation
Reasons:
• To stop sound from bothering other people in the
house or other
people outside the room
• If you have irritating neighbors, do not worry,
Sound proof your apartment by sound insulation.
• In Radio stations, studios are completely insulated
or Sound proofed.

27. Sound Insulation
Our noise control materials have been extensively
used to achieve effective soundproofing in:
1. Auditoriums/Gymnasiums
2. Restaurants
3. Broadcast Studios
4. Recording Studios
5. Theaters
6. Music Halls
7. Office Spaces
8. Corporate Boardrooms
9. Conference Rooms
10.Entertainment Facilities
11.Residential
12.Apartments/Condo
13.Home Offices
14.Home Recording Studio
s
15.Institutional
16.Educational Buildings
17.Sanctuaries
18.Museums/Libraries
USES:

28. Sound insulating Materials:
Masonary sound insulation
Concrete sound insulation
Light weight structure
sound insulation
Gypsum Celling sound
insulation
Board Partition sound
insulation
RCC sound insulation