Plastics - Revision history

DT Online at 06:54, 8 September 2017

2017-09-08T06:54:51Z

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	<span style="color: green">'''*Note:'''		<span style="color: green">'''*Note:'''
	A really expert guide on Polyethylene ''(and indeed professional data on most Plastics)'' can be found at [https://omnexus.specialchem.com/selection-guide/polyethylene-plastic~~?m_i=6BJaYVItk8ofhEVaGZ6DlsT0fW1M771HJoiYj_zFcB2WzPapR4q0jiyWZLZkoI9bBwvkjIakYDUND0RyAuKifsRLkS~~ '''What is Polyethylene (PE) plastic?''']. It is a commercial website offered to us at '''DT Online''' by [https://www.palmerholland.com/about/who-we-are/ '''Palmer Holland'''], a US-based speciality chemical distributor.		A really expert guide on Polyethylene ''(and indeed professional data on most Plastics)'' can be found at [https://omnexus.specialchem.com/selection-guide/polyethylene-plastic '''What is Polyethylene (PE) plastic?''']. It is a commercial website offered to us at '''DT Online''' by [https://www.palmerholland.com/about/who-we-are/ '''Palmer Holland'''], a US-based speciality chemical distributor.
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DT Online at 18:21, 7 September 2017

2017-09-07T18:21:03Z

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	<span style="color: green">'''*Note:'''		<span style="color: green">'''*Note:'''
	A really expert guide on Polyethylene ''(and indeed professional data on most Plastics)'' can be found at [https://omnexus.specialchem.com/selection-guide/polyethylene-plastic?m_i=6BJaYVItk8ofhEVaGZ6DlsT0fW1M771HJoiYj_zFcB2WzPapR4q0jiyWZLZkoI9bBwvkjIakYDUND0RyAuKifsRLkS '''What is Polyethylene (PE) plastic?''']. It is a commercial website offered to us at '''DT Online''' by [https://www.palmerholland.com/about/who-we-are/ '''Palmer Holland'''] a US-based speciality chemical distributor.		A really expert guide on Polyethylene ''(and indeed professional data on most Plastics)'' can be found at [https://omnexus.specialchem.com/selection-guide/polyethylene-plastic?m_i=6BJaYVItk8ofhEVaGZ6DlsT0fW1M771HJoiYj_zFcB2WzPapR4q0jiyWZLZkoI9bBwvkjIakYDUND0RyAuKifsRLkS '''What is Polyethylene (PE) plastic?''']. It is a commercial website offered to us at '''DT Online''' by [https://www.palmerholland.com/about/who-we-are/ '''Palmer Holland'''], a US-based speciality chemical distributor.
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DT Online: Added Note

2017-09-07T18:17:27Z

Added Note

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	[[File:Polyethylene-terephthalate-3D-balls.png\|400px\|right\|Polyethylene-terephthalate-3D-balls]]		[[File:Polyethylene-terephthalate-3D-balls.png\|400px\|right\|Polyethylene-terephthalate-3D-balls]]
	[https://en.wikipedia.org/wiki/Plastic '''Plastics'''] are formed by long chains of carbon based molecules, or [https://en.wikipedia.org/wiki/Polymer '''Polymers'''], strongly bonded to each other. The [https://en.wikipedia.org/wiki/Polymer#Chain_length '''Polymer Chains'''] are either joined to each other with weak [https://en.wikipedia.org/wiki/Van_der_Waals_force '''van der Vaals Forces'''] to create [https://en.wikipedia.org/wiki/Thermoplastic '''Thermoplastics'''] or much stronger [https://en.wikipedia.org/wiki/Cross-link '''Cross-Linking'''] which results in [https://en.wikipedia.org/wiki/Thermosetting_polymer '''Thermosets'''].		[https://en.wikipedia.org/wiki/Plastic '''Plastics'''] are formed by long chains of carbon based molecules, or [https://en.wikipedia.org/wiki/Polymer '''Polymers'''], strongly bonded to each other. The [https://en.wikipedia.org/wiki/Polymer#Chain_length '''Polymer Chains'''] are either joined to each other with weak [https://en.wikipedia.org/wiki/Van_der_Waals_force '''van der Vaals Forces'''] to create [https://en.wikipedia.org/wiki/Thermoplastic '''Thermoplastics'''] or much stronger [https://en.wikipedia.org/wiki/Cross-link '''Cross-Linking'''] which results in [https://en.wikipedia.org/wiki/Thermosetting_polymer '''Thermosets'''].
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			<span style="color: green">'''*Note:'''
			A really expert guide on Polyethylene ''(and indeed professional data on most Plastics)'' can be found at [https://omnexus.specialchem.com/selection-guide/polyethylene-plastic?m_i=6BJaYVItk8ofhEVaGZ6DlsT0fW1M771HJoiYj_zFcB2WzPapR4q0jiyWZLZkoI9bBwvkjIakYDUND0RyAuKifsRLkS '''What is Polyethylene (PE) plastic?''']. It is a commercial website offered to us at '''DT Online''' by [https://www.palmerholland.com/about/who-we-are/ '''Palmer Holland'''] a US-based speciality chemical distributor.
			</span>
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	<span style="color: red">'''Safety Point!'''		<span style="color: red">'''Safety Point!'''

DT Online: Added Template

2016-11-18T13:51:12Z

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			{{Thermoforming Buyers Guide}}


	[[Category:Materials and Components]]		[[Category:Materials and Components]]
	[[Category:Working Plastics]]		[[Category:Working Plastics]]

DT Online at 11:15, 15 November 2016

2016-11-15T11:15:46Z

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	<span style="color: red">'''Safety Point!'''		<span style="color: red">'''Safety Point!'''
	* <span style="color: red">Heating plastics may generate fumes so always ensure good ventilation or extraction and avoid inhalation.		* <span style="color: red">Heating plastics may generate fumes so always ensure good ventilation or extraction and avoid inhalation.
	* <span style="color: red">Always use a separate ~~plastic~~ oven and do no use it afterwards for heating food.		* <span style="color: red">Always use a separate plastics oven and do no use it afterwards for heating food.
	* <span style="color: red">Plastics such as ‘Perspex’ are very '''[[Brittleness\|Brittle]]''' materials so wear eye protection when cutting and shaping them.		* <span style="color: red">Plastics such as ‘Perspex’ are very '''[[Brittleness\|Brittle]]''' materials so wear eye protection when cutting and shaping them.
	* <span style="color: red">Wear gloves when handling hot plastics		* <span style="color: red">Wear gloves when handling hot plastics

DT Online: Added Safety Point

2016-11-15T11:15:09Z

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	[[File:Polyethylene-terephthalate-3D-balls.png\|400px\|right\|Polyethylene-terephthalate-3D-balls]]		[[File:Polyethylene-terephthalate-3D-balls.png\|400px\|right\|Polyethylene-terephthalate-3D-balls]]
	[https://en.wikipedia.org/wiki/Plastic '''Plastics'''] are formed by long chains of carbon based molecules, or [https://en.wikipedia.org/wiki/Polymer '''Polymers'''], strongly bonded to each other. The [https://en.wikipedia.org/wiki/Polymer#Chain_length '''Polymer Chains'''] are either joined to each other with weak [https://en.wikipedia.org/wiki/Van_der_Waals_force '''van der Vaals Forces'''] to create [https://en.wikipedia.org/wiki/Thermoplastic '''Thermoplastics'''] or much stronger [https://en.wikipedia.org/wiki/Cross-link '''Cross-Linking'''] which results in [https://en.wikipedia.org/wiki/Thermosetting_polymer '''Thermosets'''].		[https://en.wikipedia.org/wiki/Plastic '''Plastics'''] are formed by long chains of carbon based molecules, or [https://en.wikipedia.org/wiki/Polymer '''Polymers'''], strongly bonded to each other. The [https://en.wikipedia.org/wiki/Polymer#Chain_length '''Polymer Chains'''] are either joined to each other with weak [https://en.wikipedia.org/wiki/Van_der_Waals_force '''van der Vaals Forces'''] to create [https://en.wikipedia.org/wiki/Thermoplastic '''Thermoplastics'''] or much stronger [https://en.wikipedia.org/wiki/Cross-link '''Cross-Linking'''] which results in [https://en.wikipedia.org/wiki/Thermosetting_polymer '''Thermosets'''].
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			<span style="color: red">'''Safety Point!'''
			* <span style="color: red">Heating plastics may generate fumes so always ensure good ventilation or extraction and avoid inhalation.
			* <span style="color: red">Always use a separate plastic oven and do no use it afterwards for heating food.
			* <span style="color: red">Plastics such as ‘Perspex’ are very '''[[Brittleness\|Brittle]]''' materials so wear eye protection when cutting and shaping them.
			* <span style="color: red">Wear gloves when handling hot plastics
			</span>
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	[[Category:Materials and Components]]		[[Category:Materials and Components]]
	[[Category:Working Plastics]]		[[Category:Working Plastics]]

DT Online: Added main image

2016-11-11T14:43:24Z

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			[[File:PlasticDuck.png\|150px\|right]]
	__TOC__		__TOC__

DT Online: Created article

2016-11-11T14:30:03Z

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=====Description=====

Synthetic* [https://en.wikipedia.org/wiki/Plastic '''Plastics'''] are chemically produced from oil and a wide, possibly infinite, variety is possible, but they all fit into one of two groupings:

* [https://en.wikipedia.org/wiki/Thermoplastic '''Thermoplastics'''] - these can repeatedly be softened by heating and will return to a rigid state when cooled.
** this group includes: [https://en.wikipedia.org/wiki/Poly(methyl_methacrylate) '''Acrylic'''], [https://en.wikipedia.org/wiki/Polycarbonate '''Polycarbonate ''(PC)'''''], [https://en.wikipedia.org/wiki/Polyethylene '''Polyethylene'''], and [https://en.wikipedia.org/wiki/Polypropylene '''Polypropylene'''].
* [https://en.wikipedia.org/wiki/Thermosetting_polymer '''Thermosets'''] - these are initially ‘cured’ ''(or set)'', often by mixing with a ‘hardener’ which creates a heat producing ''([https://en.wikipedia.org/wiki/Exothermic_process '''Exothermic'''])'' chemical reaction and, once set cannot be softened again by further heating.
** this group includes: [https://en.wikipedia.org/wiki/Polyester '''Polyester Resin'''], [https://en.wikipedia.org/wiki/Epoxy '''Epoxy Resin'''], [https://en.wikipedia.org/wiki/Bakelite '''Bakelite'''] and [https://en.wikipedia.org/wiki/Melamine '''Melamine'''].
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<span style="color: green">'''*Note:'''
Several natural materials may also be classified as '''''Plastics'''''. These include: [https://en.wikipedia.org/wiki/Cellulose '''Cellulose'''], [https://en.wikipedia.org/wiki/Keratin '''Horn'''], [https://en.wikipedia.org/wiki/Amber '''Amber'''], and [https://en.wikipedia.org/wiki/Shellac '''Shellac'''].
</span>
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[[File:Polyethylene-terephthalate-3D-balls.png|400px|right|Polyethylene-terephthalate-3D-balls]]
[https://en.wikipedia.org/wiki/Plastic '''Plastics'''] are formed by long chains of carbon based molecules, or [https://en.wikipedia.org/wiki/Polymer '''Polymers'''], strongly bonded to each other. The [https://en.wikipedia.org/wiki/Polymer#Chain_length '''Polymer Chains'''] are either joined to each other with weak [https://en.wikipedia.org/wiki/Van_der_Waals_force '''van der Vaals Forces'''] to create [https://en.wikipedia.org/wiki/Thermoplastic '''Thermoplastics'''] or much stronger [https://en.wikipedia.org/wiki/Cross-link '''Cross-Linking'''] which results in [https://en.wikipedia.org/wiki/Thermosetting_polymer '''Thermosets'''].

[[Category:Materials and Components]]
[[Category:Working Plastics]]