recycling of pet waste bottle to textile valuable product
TRANSCRIPT
RECYCLING OF PET WASTE BOTTLE TO TEXTILE VALUABLE PRODUCT.
By –Kaushal Shah
INTRODUCTION :- Polyethylene terephthalate, commonly known
as “PET” in packing industry and polyester in textile industry.
Polyester is made from petroleum, that creates damaging environmental impacts during extraction process.
Recycling is most viable approach to reduce solid waste.
Therefore, The world’s most recyclable polymer is “POLYESTER” .
CONSUMPTION OF PET
91%
8%
1%World wide consumption.
Plasatic other than PET
Pet Consumption
PET which is getting recycled
CONSUMPTION OF PET
The worldwide consumption of the bottle grade PET was 18 million metric tonnes.
It represents almost 8% of total demand of standard plastic in 2015.
Out of these, only 9% of PET is getting recycled.
What is “PET”?
PET known by the trade names Mylar, Dacron and terylene.
Have high crystalline melting temperature at 260°C.
It has outstanding crease resistance, good abrasion resistance.
It can be blended with cotton and other cellulosic fibers to give better feel.
Application:- Apparel purpose
In industries
Manufacturing of container
Production of disposal.
Structure of PET
PET FEATURES High Tensile strength Good Abrasion resistance High crystallinity Cheaply available Easily recyclable Tearing strength Less shrinkage
AIM :- To understand the properties of the
recycle polyester fibre in the form of fabric as well as yarn against the virgin polyester yarn.
To reduce PET waste disposal which has created serious environmental and economic concern.
Collection
Separation & Drying
Separation of impurities
Melt Spinning
Extrusion
Winding
Preparation Of PET
Pet flakes 1.05 kg
Depolymeri-zation
glycolysis
Fine filtration
Repolymerisation
Finishing
Recycled PET pellets 1.03 kg
(Solid waste 0.02 kg)
Spinning
Recycled PET
filament fibre 1 kg.
(Solid waste
0.03 kg)
C h e m i c a l r e c y c l i n g b y g l y c o l y s i s m e t h o d .
Ethylene Glycol
Problem regarding PET waste.
PET waste disposal has created serious environmental concerns.
As PET waste is solid waste, so it takes more space.
It is non-biodegradable, in nature. It causes serious land filled
problems.
Landfill issue :-
Plastic is non biodegradable waste, they are accurate over time in land filled.
1 billion plastic are trash for one year.
Only 1% plastic are recycled remaining are land filled.
About 92% are overall plastic in land filled.
Solution to all stated problems
Plastics are a versatile recyclable material. Recycling is most viable approach to reduce solid
waste. It can be valuable asset to your corporate Green
recycling program. Creating new materials from existing materials
uses significantly less energy than using raw materials.
So it is necessary to recycle PET wastages.
Polyester{ Physical Properties }
Virgin Polyester
Moisture regain values of virgin polyester of 150 denier is 0.040%.
Bending length results of virgin polyester fabric of 150 denier is 2.75
Abrasion resistance: 1- 7.83 %
Tenacity:23.55
Tearing strength 150 denier:-
Wrap:-2986.6
Weft :-3408.6
Recycled Polyester
Moisture regain values of recycled polyester of 150 denier is 0.045%
Bending length results of recycled polyester fabric of 150 denier is 2.1
Abrasion resistance: 1- 1.16%
Tenacity:20.24
Tearing strength 150 denier:-
Wrap:-2858.6
Weft :-2986.6
Comparison Of Chemical Properties.
Virgin Polyester Dye ability (corallene
yellow):- 46.26 Crystalline region:- 88% Amorphose region:- 12%
Recycle Polyester Dye ability (corallene
yellow):- 32.54 Crystalline region:- 82% Amorphose region:-
18%
Company making use of recycled PET bottles to polyester fibre.
Polygenta ltd- Nasik
Reliance industry limited(RIL)- Naroda
Arora fibre- Dadra & Nagar Haveli
Panchal plastic- Malad West, Mumbai
Krishna Plastic- Baroda
Many more industries are carry out this recycling process in many different ways and they are successful too.
Conclusion In recent our institute(DKTE) has carried out experimental work on the recycling of PET flask bottles. This are following results:- The recycled polyester has increased amorphous region compared to the
virgin polyester.
Improvement in dyeing and physical properties of fibre.
It will surely solve the problem regarding waste and garbage's of PET bottles.
It also solve land filled problem.
References:- Sabit Adanur , Textile waste management, Wellington Sears Handbook of Industrial
Textiles, 1st edition, October 1995, p 713
Bassett, J.G., Reuse of polymer and fibre waste, International fiber journal, 1992, 7(5), p 28
S.Venkatachalam, Shilpa G. Nayak, Jayprakash V. Labde, Prashant R. Gharal, Krishna Rao and Anil K. Kelkar, Degradation and recyclability of poly ethylene terephthalate, Polyester: Edited by Hosam El.din, September 2012, p 76,95 http://dx.doi.org/10.5772/48612
Sharma N.D. and Shubhada H , Management of PET waste, Asian Textile Journal,4(6), 1995, p 39-52
Joel R. Fried, Polymer science and technology, 2nd edition, June 2003, p 274-275
Thank You