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Points to Remember
* Fibres are long strands of molecules interwoven to form linear, string-like structures that can be woven, knitted, matted or bonded.
* Fibres can be natural or synthetic.
* Our increasing consumption and production of waste has negative impacts on humans, animals and the environment.
* Nylon is a synthetic fibre made from petrochemicals oil and gas.
* Polycot is a mixture of polyester and cotton, Polywool is a mixture of polyester and wool.
* Synthetic fibres melt on burning while cotton fibres catch fire on burning.
* Polymers are very long chains made of repeating smaller molecules called monomers that are joined together with different types of bonds.
* Plastics that get deformed easily on heating and can be bent are known as thermoplastics.
* Plastics that do not get deformed easily on heating and cannot be bent are known as thermosetting plastics.
* There are many different types of plastics. Some of which are safe or unsafe for us. We can find out what type of plastic an item is by identifying the resin code or acronym found on it.
* Poly Lactic Acid or polylactide is a biodegradable and bioactive thermoplastic.
* The management of plastics can be considered by the 5R Principle – Refuse, Reduce, Reuse, Recycle and `Recover as well as to Landfill.
* Ideonellasakaiensis 201-F6 is a bacteria discovered by scientists that digests plastic resin code #1 PET used to make single-use drinks bottles.
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