- They are light in weight and is chemically stable.
- Easily moulded into different shapes and sizes.
- Good insulation and low thermal conductivity.
- Good impact resistance and they do not rust.
- Good transparency and wear resistance.
- Poor dimensional stability and can be easily deformed.
What are five physical properties of plastic?
Plastics can be classified by the chemical process used in their synthesis, such as condensation, polyaddition, and cross-linking. They can also be classified by their physical properties, including
hardness, density, tensile strength, thermal resistance, and glass transition temperature
.
Which of the following is a common property of plastic?
Plastics are non-reactive due to which they are resistant to the attack of surroundings. They are very light weighted. They have
high durability
i.e., they have long-life. They are insulators and hence, don't conduct electricity and heat.
What is the most common use of plastic?
Plastic is used across almost every sector, including to
produce packaging
, in building and construction, in textiles, consumer products, transportation, electrical and electronics and industrial machinery.
Which of these is not property of plastic?
Which of these is not a property of plastic ? (a)
bad conductor of heat
,(b)bad conductor ofelectricity, (c)inflammable ,(d)soluble in water. Plastics are non-polar substances and so, are not soluble in water. Hence, option (d) is correct.
Which is the following is not a common property of plastic?
Which of the following is not a common property of plastics? Explanation:
Plastic is a bad conductor of electricity
.
Why is plastic so unique?
Being able to design or engineer polymers for specific applications
makes plastics unique materials. Although each polymer has unique characteristics, most polymers have some general properties: They are resistant to chemicals. They are insulators of heat and electricity.
What are the mechanical properties of plastic?
- Strength: measure of the resistance of a material to external stress.
- Stiffness: measure of the resistance of a material to deformation.
- Hardness: measure of the resistance of a material to deformation under concentrated compressive load.
Why do we say no plastic?
Say no to plastic bags as plastic bags are
threat to our environment because a single plastic bag takes up to 1000 years to decompose as it contains non-renewable petrochemicals
. … So without wasting a minute people should say no to polythene bags. “Plastic bag is a death bag.”
What are 5 common plastics used in homes?
- Polyethylene (Polythene)
- Poly Vinyl Chloride (PVC) also known as vinyl.
- Polypropylene.
- Polystyrene.
- Polytetrafluoroethylene (Teflon)
- Nylon.
- Polyesters, polyethylene terephthalate (PET) being the most common.
- Acrylic.
What are the 2 main types of plastic?
Types of Plastics Material
The two key categories of plastic are
thermoplastics and thermosetting plastics (thermosets)
.
What are the 7 types of plastic?
- 1) Polyethylene Terephthalate (PET or PETE)
- 2) High-Density Polyethylene (HDPE)
- 3) Polyvinyl Chloride (PVC or Vinyl)
- 4) Low-Density Polyethylene (LDPE)
- 5) Polypropylene (PP)
- 6) Polystyrene (PS or Styrofoam)
- 7) Other.
Is plastic non reactive?
What About Plastic? In general, plastic is
a non-reactive material
in the sense that plastic particles will not leech into your food. However, you need to make sure that you are using food-grade plastic.
Is plastic soluble in water?
To start at the end, yes, plastics which
will dissolve in water
have been known for quite some years. They are used in hospitals to make laundry bags. Panels within the bag are made of dissolving plastic. … These can form a special type of bond, called a hydrogen bond, with water, and so dissolve.
Is plastic a good conductor of heat?
Plastics are poor heat conductors
, because they have virtually no free electrons available for conduction mechanisms like metals. The thermal insulating capacity of plastics is rated by measuring the thermal conductivity.
Which of the following is not plastic?
Cheque
is not plastic money.
