Editing Polyvinyl chloride (section)

==Properties==
PVC is a [[thermoplastic]] polymer. Its properties are usually categorized based on rigid and flexible PVCs.<ref>{{cite web|url=https://greenpvc.com.vn/differences-between-flexible-and-rigid-pvc-compounds|title=DIFFERENCES BETWEEN FLEXIBLE AND RIGID PVC COMPOUNDS|publisher=Green PVC|language=en-US|url-status=live|date=August 12, 2021|archivedate=December 16, 2021|archiveurl=https://web.archive.org/web/20211216065231/https://greenpvc.com.vn/differences-between-flexible-and-rigid-pvc-compounds}}</ref>

{| class="wikitable"
|-
! scope="col" | Property
! scope="col" | Unit of measurement
! scope="col" | Rigid PVC
! scope="col" | Flexible PVC
|-
! scope="row" | [[Density]]<ref name="titow1186">{{harvnb|Titow|1984|p=1186}}.</ref>
! scope="row" | g/cm<sup>3</sup>
| 1.3–1.45
| 1.1–1.35
|-
! scope="row" | [[Thermal conductivity]]<ref name="titow1191">{{harvnb|Titow|1984|p=1191}}.</ref>
! scope="row" | W/(m·[[Kelvin|K]])
| 0.14–0.28
| 0.14–0.17
|-
! scope="row" rowspan="2" | [[Yield strength]]<ref name="titow1186"/>
! scope="row" | [[Pounds per square inch|{{abbr|psi|pounds per square inch}}]]
| 4,500–8,700
| 1,450–3,600
|-
! scope="row" | [[Pascal (unit)|{{abbr|MPa|megapascal}}]]
|31–60
| 10.0–24.8
|-
! scope="row" rowspan="2" | [[Young's modulus]]<ref name="titow857">{{harvnb|Titow|1984|p=857}}.</ref>
! scope="row" | psi
| 490,000
| style="text-align:center" | —
|-
! scope="row" | [[Pascal (unit)|{{abbr|GPa|gigapascal}}]]
| 3.4
| style="text-align:center" | —
|-
! scope="row" rowspan="2" | [[Flexural strength]] (yield)<ref name="titow857"/>
! scope="row" | psi
| 10,500
| style="text-align:center" | —
|-
! scope="row" | MPa
| 72
| style="text-align:center" | —
|-
! scope="row" rowspan="2" | [[Compression strength]]<ref name="titow857"/>
! scope="row" | psi
| 9,500
| style="text-align:center" | —
|-
! scope="row" | MPa
| 66
| style="text-align:center" | —
|-
! scope="row" | [[Coefficient of thermal expansion]] (linear)<ref name="titow857"/>
! scope="row" | mm/(mm °C)
| 5×10<sup>−5</sup>
| style="text-align:center" | —
|-
! scope="row" | [[Vicat B]]<ref name="titow1191"/>
! scope="row" | °C
| 65–100
| Not recommended
|-
! scope="row" | [[Resistivity]]{{efn|name="resistivity note"|At 60% relative humidity and room temperature.}}<ref name="titow1194">{{harvnb|Titow|1984|p=1194}}.</ref>
! scope="row" | [[Ohm|{{abbr|Ω|ohms}}]] m
| 10<sup>16</sup>
| 10<sup>12</sup>–10<sup>15</sup>
|-
! scope="row" | [[Sheet resistance|Surface resistivity]]{{efn|name="resistivity note"}}<ref name="titow1194"/>
! scope="row" | Ω
| 10<sup>13</sup>–10<sup>14</sup>
| 10<sup>11</sup>–10<sup>12</sup>
|}

;Notes
{{notelist}}

===Thermal and fire===
The [[heat stability]] of raw PVC is very poor, so the addition of a heat stabilizer during the process is necessary in order to ensure the product's properties. Traditional product PVC has a maximum operating temperature around 60&nbsp;°C (140&nbsp;°F) when heat distortion begins to occur.<ref name="Joyce-2004">{{cite book |last1=Michael A. Joyce, Michael D. Joyce |title=Residential Construction Academy: Plumbing |date=2004 |publisher=Cengage Learning |pages=63–64}}</ref>

As a thermoplastic, PVC has an inherent insulation that aids in reducing condensation formation and resisting internal temperature changes for hot and cold liquids.<ref name="Joyce-2004"/>