Comparative Study between R-Pet & Virgin Pet in Terms of Technical Aspect and Market Potential

Abstract: The crux of the new trend lies in sustainability and so follows the recyclable products. Polyester is of immense importance as a fibre when it comes to textile and garment, but the type used (Virgin PET) is not an eco-friendly one. Polyester filament extracted from the recycled PET bottles can cater to the unmet need of an eco-friendly substitute to the virgin polyester. A comparative study has been made to analyse whether recycled PET can perform the functionality of virgin PET. The physical properties of both stand out to be the same, signalling the use of recycled PET filament. Recycled PET filament finds it limitation in non-uniform dyeing but the same can be solved through chemical extraction. Keywords: Virgin PET, Recycled PET, Instron test, Boiling water shrinkage test, sustainable, market potential.

Download Full-text

Physical Properties of PP/Recycled PET Blends Prepared by Pulverization Technique

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.488-489.109 ◽

2012 ◽

Vol 488-489 ◽

pp. 109-113

Author(s):

Pranut Potiyaraj ◽

Supachok Tanpichai ◽

Prompoom Phanwiroj

Keyword(s):

Physical Properties ◽

Soft Drink ◽

Melt Flow Index ◽

Lower Amount ◽

Flow Index ◽

Polymer Mixtures ◽

Recycled Pet ◽

Pet Bottles ◽

Polyethylene Wax ◽

Processing Techniques

Polymer blends between pristine polypropylene (PP) and post-consumer soft-drink PET bottles (rPET) were prepared using pulverization technique. The polymer mixtures were pulverized, at the amounts of rPET in PP of 0, 10, 15, 20 and 30 phr (parts per hundred of resin) by weight, into powder. In an extruder, the polymer powders were mixed with maleic anhydride-grafted polypropylene (MAPP) and polyethylene wax (PE wax) as a compatibilizer and a processing aid, respectively. The extrudates were prepared into test specimens by injection molding. Physical properties of PP/rPET blends were subsequently investigated. The results pointed out that, for the pulverized blends without compatibilizer, tensile and flexural strength were improved at the lower amount of rPET. The compatibilizing effect of MAPP was exhibited at the higher amount of rPET. The reduction of melt flow index (MFI) may cause difficulties for some processing techniques which required polymers with high MFI. The addition of PE wax successfully brought up the MFI as well as elongation at break while other mechanical properties decreased.

Download Full-text

A Comparative Study on The Effect of Compaction on Strength and Physical Properties of Stone Matrix Asphalt Compacted by Marshall Compaction and SuPErPAvE Gyratory Compaction Methods

Indian Journal Of Applied Research ◽

10.15373/2249555x/july2014/64 ◽

2011 ◽

Vol 4 (7) ◽

pp. 209-211

Author(s):

Yateen Lokesh ◽

◽

Dr. M. S. Amarnath Dr. M. S. Amarnath ◽

Dr. Manjesh. L Dr. Manjesh. L

Keyword(s):

Comparative Study ◽

Physical Properties ◽

Stone Matrix Asphalt ◽

Gyratory Compaction ◽

Stone Matrix

Download Full-text

Mechanical Optimization of Concrete with Recycled PET Fibres Based on a Statistical-Experimental Study

Materials ◽

10.3390/ma14020240 ◽

2021 ◽

Vol 14 (2) ◽

pp. 240

Author(s):

Alejandro Meza ◽

Pablo Pujadas ◽

Laura Montserrat Meza ◽

Francesc Pardo-Bosch ◽

Rubén D. López-Carreño

Keyword(s):

Reinforced Concrete ◽

Aspect Ratio ◽

Mechanical Performance ◽

Tensile Tests ◽

Superior Performance ◽

Fibre Reinforced Concrete ◽

Marine Fauna ◽

Recycled Pet ◽

Pet Bottles ◽

Fibre Aspect Ratio

Discarded polyethylene terephthalate (PET) bottles have damaged our ecosystem. Problems of marine fauna conservation and land fertility have been related to the disposal of these materials. Recycled fibre is an opportunity to reduce the levels of waste in the world and increase the mechanical performance of the concrete. PET as concrete reinforcement has demonstrated ductility and post-cracking strength. However, its performance could be optimized. This study considers a statistical-experimental analysis to evaluate recycled PET fibre reinforced concrete with various fibre dose and aspect ratio. 120 samples were experimented under workability, compressive, flexural, and splitting tensile tests. The results pointed out that the fibre dose has more influence on the responses than its fibre aspect ratio, with statistical relation on the tensional toughness, equivalent flexural strength ratio, volumetric weight, and the number of fibres. Moreover, the fibre aspect ratio has a statistical impact on the tensional toughness. In general, the data indicates that the optimal recycled PET fibre reinforced concrete generates a superior performance than control samples, with an improvement similar to those reinforced with virgin fibres.

Download Full-text