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