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      <title>SPI CODES by </title>
      <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0</link>
      <description></description>
      <language>en-us</language>
      <pubDate>2023-01-13 08:51:51 UTC</pubDate>
      <lastBuildDate>2026-01-30 19:53:04 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
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         <url></url>
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      <item>
         <title>Polyethylene terephthalate (PETE or PET)</title>
         <author>paulacantoral</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2443328250</link>
         <description><![CDATA[]]></description>
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         <pubDate>2023-01-13 09:00:49 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2443328250</guid>
      </item>
      <item>
         <title>Chemical structure</title>
         <author>paulacantoral</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2443330523</link>
         <description><![CDATA[]]></description>
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         <pubDate>2023-01-13 09:03:41 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2443330523</guid>
      </item>
      <item>
         <title>Common uses</title>
         <author>paulacantoral</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2443331101</link>
         <description><![CDATA[<div>Common plastic material used for water bottles of all sizes and jars for common kitchen goods such as peanut butter.</div>]]></description>
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         <pubDate>2023-01-13 09:04:22 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2443331101</guid>
      </item>
      <item>
         <title>High density polythylene (HDPE)</title>
         <author>javierchico4</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2443334073</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1934289179/5237a875f316e07e8151da21fe06f754/SPI_2.png" />
         <pubDate>2023-01-13 09:07:52 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2443334073</guid>
      </item>
      <item>
         <title>Polystyrene (PS)</title>
         <author>borydovale</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2443334409</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Plastic-recyc-06.svg/1024px-Plastic-recyc-06.svg.png" />
         <pubDate>2023-01-13 09:08:19 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2443334409</guid>
      </item>
      <item>
         <title>Chemical structure</title>
         <author>borydovale</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445542314</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://upload.wikimedia.org/wikipedia/commons/thumb/6/60/Polystyrene.svg/218px-Polystyrene.svg.png" />
         <pubDate>2023-01-16 11:32:34 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445542314</guid>
      </item>
      <item>
         <title>Common uses</title>
         <author>borydovale</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445543338</link>
         <description><![CDATA[<div>Some common usages are the polystyrene foam for packaging, Bic products, foam cups, plastic cutlery and CD cases.</div>]]></description>
         <enclosure url="https://letstalkscience.ca/sites/default/files/2019-09/plastic_food_containers.png" />
         <pubDate>2023-01-16 11:33:28 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445543338</guid>
      </item>
      <item>
         <title> Polypropylene (PP)</title>
         <author>paulacantoral</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445544666</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1934289292/660b57620651fed64824a82c5d7e5271/image.png" />
         <pubDate>2023-01-16 11:34:46 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445544666</guid>
      </item>
      <item>
         <title>Chemical structure</title>
         <author>javierchico4</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445545788</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1934289179/1c1d0cf2bc2e861cc3ddf9c0b666fe39/SPI_2.png" />
         <pubDate>2023-01-16 11:35:53 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445545788</guid>
      </item>
      <item>
         <title>Common uses</title>
         <author>javierchico4</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445549835</link>
         <description><![CDATA[<div><strong>Principal uses are in</strong> <strong>packaging film, trash and grocery bags, agricultural mulch, wire and cable insulation, squeeze bottles, toys, and housewares</strong>.</div>]]></description>
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         <pubDate>2023-01-16 11:39:37 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445549835</guid>
      </item>
      <item>
         <title>Chemical composition</title>
         <author>paulacantoral</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445552750</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1934289292/e05df7b00b50e957eec67370897279dd/image.png" />
         <pubDate>2023-01-16 11:42:03 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445552750</guid>
      </item>
      <item>
         <title>Polyvinyl chloride (PVC)</title>
         <author>javierchico4</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445554227</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1934289179/a80ab94d2f664541877d22e11374e4d5/SPI3.jpg" />
         <pubDate>2023-01-16 11:43:27 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445554227</guid>
      </item>
      <item>
         <title>Common uses</title>
         <author>paulacantoral</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445556452</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1934289292/af77cc727809702a6e14b8b13dc41be6/image.png" />
         <pubDate>2023-01-16 11:45:34 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445556452</guid>
      </item>
      <item>
         <title>Chemical composition</title>
         <author>javierchico4</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445556518</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1934289179/da57bc3147568f979f47b449a1c67e71/SPI_3_CC.png" />
         <pubDate>2023-01-16 11:45:39 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445556518</guid>
      </item>
      <item>
         <title>Low density polyethylene (PEBD, PE-LD)</title>
         <author>borydovale</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445557748</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Plastic-recyc-04.svg/1200px-Plastic-recyc-04.svg.png" />
         <pubDate>2023-01-16 11:46:46 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445557748</guid>
      </item>
      <item>
         <title>Main features</title>
         <author>javierchico4</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445558631</link>
         <description><![CDATA[<div><strong>Flexible, translucent/waxy, weatherproof, good low temperature toughness (to -60'C), easy to process by most methods, low cost, good chemical resistance</strong>.</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-01-16 11:47:44 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445558631</guid>
      </item>
      <item>
         <title>(OTHER)/(PLA)</title>
         <author>paulacantoral</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445558883</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1934289292/18dd5f755dd2f86c7c8337a0c26aab81/image.png" />
         <pubDate>2023-01-16 11:48:01 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445558883</guid>
      </item>
      <item>
         <title>Main features</title>
         <author>javierchico4</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445559700</link>
         <description><![CDATA[<div><strong>Less rigid; has high impact strength; is easier to extrude or mould; has lower temperature resistance; is less resistant to chemicals, and usually has lower ultimate tensile strength</strong>.</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-01-16 11:48:52 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445559700</guid>
      </item>
      <item>
         <title>Chemical composition</title>
         <author>borydovale</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445560050</link>
         <description><![CDATA[]]></description>
         <enclosure url="http://www.ub.edu/cmematerials/sites/default/files/UnitatEstructural/HDPE.estructura.JPG" />
         <pubDate>2023-01-16 11:49:14 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445560050</guid>
      </item>
      <item>
         <title>Common uses</title>
         <author>javierchico4</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445561337</link>
         <description><![CDATA[<div>PVC is a versatile material that offers many possible applications, these include; window frames, drainage pipe, water service pipe, medical devices, blood storage bags, cable and wire insulation, resilient flooring, roofing membranes, stationary, automotive interiors and seat coverings, fashion and footwear, packaging.</div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/1934289179/6d4542e3944a7248e41360e09369b6b3/PVC_pipes_1.jpg" />
         <pubDate>2023-01-16 11:50:36 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445561337</guid>
      </item>
      <item>
         <title>Main features</title>
         <author>paulacantoral</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445563039</link>
         <description><![CDATA[<div>Easily recyclable.<br>It is very light weight.<br>It shows resistance to impact, moisture, alcohols and solvents.</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-01-16 11:52:05 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445563039</guid>
      </item>
      <item>
         <title>Common uses</title>
         <author>borydovale</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445563123</link>
         <description><![CDATA[<div>LDPE is widely used for manufacturing various containers, dispensing bottles, wash bottles, tubing, plastic parts for computer components, and various molded laboratory equipment. Its most common use is in plastic bags.</div>]]></description>
         <enclosure url="https://www.birchplastics.com/assets/plastic-resin/virgin-linear-low-density-polyethylene-lldpe3.jpg" />
         <pubDate>2023-01-16 11:52:11 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445563123</guid>
      </item>
      <item>
         <title>Main features</title>
         <author>paulacantoral</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445564175</link>
         <description><![CDATA[<ul><li>Semi-rigid.</li><li>Translucent.</li><li>Good chemical resistance.</li><li>Tough.</li><li>Good fatigue resistance.</li><li>Integral hinge property.</li><li>Good heat resistance.</li></ul><div><br></div>]]></description>
         <enclosure url="" />
         <pubDate>2023-01-16 11:53:27 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445564175</guid>
      </item>
      <item>
         <title>Main features</title>
         <author>borydovale</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445571214</link>
         <description><![CDATA[<div>It is a very good electric insulating material.<br>It is also relatively low heat resistance.<br>The polystyrene is also very light.<br>Unmodified polystyrene is clear, rigid, brittle and moderately strong.<br>Polystyrene is soluble in most chlorinated and aromatic solvents, though not in alcohols.</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-01-16 12:01:04 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445571214</guid>
      </item>
      <item>
         <title>Main features</title>
         <author>borydovale</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445575017</link>
         <description><![CDATA[<ul><li>Excellent resistance to dilute and concentrated acids, alcohols, bases, and esters.</li><li>Good resistance to aldehydes, ketones, and vegetable oils</li><li>Limited resistance to aliphatic and aromatic hydrocarbons, mineral oils, and oxidizing agents</li><li>Poor resistance, and not recommended for use with halogenated hydrocarbons.</li></ul>]]></description>
         <enclosure url="" />
         <pubDate>2023-01-16 12:05:00 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445575017</guid>
      </item>
      <item>
         <title>Description</title>
         <author>borydovale</author>
         <link>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445583353</link>
         <description><![CDATA[<div>It is composed of different mixes of resins and/or of the combination of the other six types of plastic. This is why it is very hard or impossible to recycle.</div>]]></description>
         <enclosure url="" />
         <pubDate>2023-01-16 12:13:30 UTC</pubDate>
         <guid>https://padlet.com/paulacantoral/lng31oxmkvavtbm0/wish/2445583353</guid>
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