Resins

Our Complete range of products are PVC Resin and Pet Resin.

PVC Resin

Poly Vinyl Chloride Resin or PVC Resin as it is popularly called, is a thermoplastic Resin which can be softened on reheating. A common term for this commodity polymer is Vinyl. Often available in the form of a powder, PVC granules are highly resistant to oxidisation and degradation caused by atmospheric reaction. In its raw form, it appears as a white powdery solid.

The composition of PVC is such that 57 % is chlorine and 43% is carbon. Since the process of deriving PVC Resin granules is rarely dependent on petroleum, it is considered as one of the more renewable plastics.

According to its appearance and flexibility, PVC is categorised into the following two categories:

Rigid PVC: Use in construction
Flexible PVC: The granules are made softer by the addition of plasticisers

PVC Resin is manufactured by thepolymerisationof thevinyl chloridemonomer. According to the method of polymerisation.

PVC Resin granules are characterised into four categories:

Suspension PVC: This method is highly cost effective and about 80% of PVC Resin is produced via this method
Emulsion PVC: This process produces finer particles and the product is mostly used in the manufacturing of plastisols
Bulk-Polymerized PVC: In this method, no emulsifiers or additives are used. This helps to generate the purest form of PVC
Co-Polymer PVC: This process is used for adding special properties to PVC by polymerising the granules along with other co-monomers. Vinyl flooring sheets come under this category

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PET Resin

PET stands for Polyethylene Terephthalate Resin, a widely used thermo-plastic polymer. The fact that it belongs to the polyester family, lends it a common name of polyester when used for fabrics.

A positive point of PET Resin is that it is recyclable, and hence sustainable in nature. In fact, it can be re-recycled into a variety of forms, making it the most in-demand commodity for industrial and personal use.

Naturally, PET occurs as colourless resin with a somewhat crystalline form. When produced in a chemical setting, ethylene glycol and Teraphthalic acid react under high temperature and low pressure, forming long polymer chains which resemble spaghetti-like strands. These are then cut into pellets, which when heated will melt further and can be stretched into thin fibres or sheets. Another far more crystalline form of PET can also be prepared if it remains stretched at high temperatures for a longer period of time, giving it a more glass-like appearance.

There are different types of PET:

Amorphous PET/Reground PET: This is PET in its amorphous virgin form, clear in colour and lustrous
Crystalline PET: When Amorphous PET is crystallised to prevent agglomeration in the processing machinery while drying, it is called Crystalline PET. Conversion happens at temperatures of 180 degrees Celsius
Blow Moulded PET: A combination of 20% amorphous and 80% crystalline scrap, is used for producing this highly dry version for further processing
Recycled PET: Any PET which is recycle typically contains 25-100% recycled content
Terra PET: A blend with a 30% mix of renewable sugarcane derivatives

Apart from pure PET, co-polymers are also used to impart special properties to PET. For example, a commonly used coloured PET-G is produced by reacting cyclohexane di-methanol instead of ethylene glycol. PET-G can be easily extruded into a variety of shapes.

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