Introduction:
Household items made of various kinds of plastic.
Plastic is the general common term for a wide range of synthetic or semisynthetic organic amorphous solid materials used in the manufacture of industrial products. Plastics are typically polymers of high molecular mass, and may contain other substances to improve performance and/or reduce costs. Monomers of Plastic are either natural or synthetic organic compounds.
The word is derived from the Greek past (plastikos) meaning fit for molding, and past ....etc

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It is also known as joint polymerisation.
Monomers must contain atleast one multiple bond. ....etc

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GEO POLYMER CONCRETE-Concrete without cement


Whatâ„¢s wrong with cement concrete?
Many concrete structures deteriorate after 20 years.

Cement production releases high amounts of CO2 to the atmosphere(1tonne of cement production releases 1tonne of CO2) thus contributing to 7% of world CO2 emissions.

Cement is one of the most energy intensive material.



How to reduce the use of cement
Partially replace the use of cement in concrete.
example: high volume fly ash concrete


Develop altern ....etc

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I want ppt and journels on bio colours, bio oxidtion, steam cars and new polymer technology on advanced materials ....etc

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mechanism of interfacial polymerization ppt ....etc

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COMMON SYNTHETIC PLASTICS

INRODUCTION
Plastic molecules are made of long chains of repeating units called monomers. The atoms that make up a plasticâ„¢s monomers and the arrangement of the monomers within the molecule both determine many of the plasticâ„¢s properties. Plastics are one of the classification of polymers .If a polymer is shaped into hard and tough utility articles by the application of heat and pressure ,it is used as plastic.
Synthetic polymers are often referred to as plastics, such as the ....etc

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1.The name of process of controlled wounding on rubber tree tor extraction of latex is :
(A)Picking(B)Sheeting(C )Cutting(D)Tapping

2.The grade of rubber sheet which is used mainly for tyre manufacturing is  :
(A)l ot(B)Off grade(C )RSS -1(D)RSS - 4

3.The name of plastic which is used for mineral water and carbonized beverage bottles :
(A)Polythene(B)Poly propelene (C )PET(D)PVC

4.What is the name of fibre which is extracted from coconut husk ?
(A)Coir(B)Jute(C )Cotton(D)Linen

5.______ ____is a commodity plas ....etc

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ABSTRACT
Imagine a supercomputer no bigger than a human cell. Imagine a four-person, surface-to-orbit spacecraft no larger or more expensive than the family car. Imagine attaining immortality by drinking a medicine. These are just a few products expected from Nanotechnology.
Nanotechnology is molecular manufacturing or, more simply, building things one atom or molecule at a time with programmed nanoscopic robot arms; Nanotechnology proposes the construction of novel molecular devices possessing extraordin ....etc

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SUBMITTED BY-
Arun Kotnala
Abhishek Soni
Ankur Tripathi
Anurag Satpathy


MOLECULAR CONFIGURATION
• Configuration refers to the order that is determined by chemical bonds. The configuration of a polymer cannot be altered unless chemical bonds are broken and reformed.
 In polymers, configuration can be roughly classified into 3 types-
 Based on Molecular chain- Head-to-Head
Head-to-Tail
Tail-to-T ....etc

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A SEMINAR REPORT ON FLUORESCENT MULTILAYER DISC (FMD)
Submitted by:ANIRUDH S
COMPUTER SCIE CE A D E GI EERI G
SCHOOL OF E GI EERI G
COCHI U IVERSITY OF SCIE CE &TECH OLOGY,
KOCHI-682022
AUGUST 2008

ABSTRACT
Compact discs were a revolutionary product at its time and influenced many spheres of human activity. People started recording music of high quality, which didn't get worse with the time as it happens to be on tape. As soon as CDs a ....etc

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mechanism of interfacial polymerization ppt ....etc

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