Properties of Recycled Polyester
7
this firm has utilized around 7.9 million plastic bottles which are subjected to landfill
treatment (Ethically sustained WordPress). During the production of PET fibers the
bottles are collected in a bulk quantity and it is subjected to a series of conversion
process such as separation, purification, grinding and drying. The fibers obtained
from the recycling process are utilized majorly in the textiles, blankets, carpets and
other domestic appliances. Some of the studies concluded that the recycling rate of
PET bottles has elevated from 13 million tons in 2018 to 15 million tons in 2020.
Some of the beneficial features which make the recycled polyesters as an outstanding
material are as follows:
• Reduces the consumption of petroleum for polyester production
• Controls the solid waste aggregation
• Decreases the non- degradable PET bottles dumped in the landfills
• Lessen the harmful consequences of plastic on the environment
• Minimizes the wastage
• The recycled polyesters are less harmful than the virgin polyesters
• Minimizes the emission of greenhouse gases and ozone depletion
• Decreases the usage of harmful nondegradable chemicals used in the production
of virgin polyesters.
6 Methodology for Polyester Recycling
The polyester is naturally nondegradable material and also it cannot be degraded by
any microorganisms. Moreover, it requires expensive technologies for its decomposition and processing [12]. The recycling of the PET polyester waste is seemed to be
the best option to reduce the deleterious effects of PET waste [12]. There are three
particular ways to deal with the reusing of post-purchaser plastic bundling materials.
The bundling may: (1) be reused legitimately; (2) experience physical reprocessing,
for instance crushing, dissolving and transforming; (3) be exposed to concoction
treatment whereby its parts are disconnected and reprocessed for use in production
[3]. The recycling of the polyesters materials is of two types they are primary recycling and secondary recycling. The primary recycling of polyesters is one of the
most well-known methods because of its simplicity and feasibility. This procedure
alludes to the reuse of items in their unique structure. The main disadvantage in this
method is the presence of an utmost on the number of cycles for every material. The
secondary recycling technique is the conversion of the polymers into other products
by heating. The secondary recycling is of two types such as mechanical and chemical recycling method. In the mechanical recycling the polyester waste is converted
into recycled fibers through a series of conversion steps such as cutting, shredding,
purification, pellet formation, spinning, and fiber production. The complete process
of conversion of PET bottles into fibers is depicted in Fig. 4.
7
this firm has utilized around 7.9 million plastic bottles which are subjected to landfill
treatment (Ethically sustained WordPress). During the production of PET fibers the
bottles are collected in a bulk quantity and it is subjected to a series of conversion
process such as separation, purification, grinding and drying. The fibers obtained
from the recycling process are utilized majorly in the textiles, blankets, carpets and
other domestic appliances. Some of the studies concluded that the recycling rate of
PET bottles has elevated from 13 million tons in 2018 to 15 million tons in 2020.
Some of the beneficial features which make the recycled polyesters as an outstanding
material are as follows:
• Reduces the consumption of petroleum for polyester production
• Controls the solid waste aggregation
• Decreases the non- degradable PET bottles dumped in the landfills
• Lessen the harmful consequences of plastic on the environment
• Minimizes the wastage
• The recycled polyesters are less harmful than the virgin polyesters
• Minimizes the emission of greenhouse gases and ozone depletion
• Decreases the usage of harmful nondegradable chemicals used in the production
of virgin polyesters.
6 Methodology for Polyester Recycling
The polyester is naturally nondegradable material and also it cannot be degraded by
any microorganisms. Moreover, it requires expensive technologies for its decomposition and processing [12]. The recycling of the PET polyester waste is seemed to be
the best option to reduce the deleterious effects of PET waste [12]. There are three
particular ways to deal with the reusing of post-purchaser plastic bundling materials.
The bundling may: (1) be reused legitimately; (2) experience physical reprocessing,
for instance crushing, dissolving and transforming; (3) be exposed to concoction
treatment whereby its parts are disconnected and reprocessed for use in production
[3]. The recycling of the polyesters materials is of two types they are primary recycling and secondary recycling. The primary recycling of polyesters is one of the
most well-known methods because of its simplicity and feasibility. This procedure
alludes to the reuse of items in their unique structure. The main disadvantage in this
method is the presence of an utmost on the number of cycles for every material. The
secondary recycling technique is the conversion of the polymers into other products
by heating. The secondary recycling is of two types such as mechanical and chemical recycling method. In the mechanical recycling the polyester waste is converted
into recycled fibers through a series of conversion steps such as cutting, shredding,
purification, pellet formation, spinning, and fiber production. The complete process
of conversion of PET bottles into fibers is depicted in Fig. 4.