Difference between revisions of "Thermoset"

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== Description ==
 
== Description ==
  
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A polymer that, once fused, cannot be resoftened with heat. Thermoset polymers are usually insoluble in most solvents. Examples of thermoset polymers are [[Epoxy|epoxies]], [[Silicone|silicones]], and [[Phenolic resin|phenolics]] along with some [[Polyester resin|polyesters]] and [[Polyurethane|polyurethanes]].
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A polymer that, once fused, cannot be resoftened with heat. Thermoset polymers are usually insoluble in most solvents. Examples of thermoset polymers are [[Epoxy|Epoxies]], [[Silicone resin|Silicones]], and [[Phenolic resin|Phenolics]] along with some [[Polyester resin|Polyesters]] and [[Polyurethane|Polyurethanes]].
  
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Physical Properties for Selected Thermoset Resins
 +
{| class="wikitable"
 +
|-
 +
! polymer
 +
! Tg ©
 +
! Ref.index (film)
 +
! Density
 +
! Tensile strength (1000 psi)
 +
! Flexural strength (1000 psi)
 +
! Compres- sive strength (1000 psi)
 +
! Elongtaion at break (%)
 +
! Shrinkage (%)
 +
! water absorption (24 hrs.)
 +
|-
 +
| casein
 +
| 35
 +
| 1.33 (sol'n);<br />    1.4-1.5 (film)
 +
| 1.35
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|-
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| chlorinated rubber
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|
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| 1.55-1.60
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| 1.24
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|-
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| epoxy resin
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| 90-180
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| 1.56
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| 1.1-1.4
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| 4-13
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| 13-21
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| 15-21.5
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| 2.6
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| 0.1-0.4
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| 0.01-0.10
 +
|-
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| melamine formaldehyde
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|
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| 1.65
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| 1.40-1.48
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| 7-9
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| 11-14
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| 40-45
 +
|
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| 1.0-1.5
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| 0.01-1.3
 +
|-
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| phenol formaldehyde
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|
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| 1.70
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| 1.30-1.86
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| 6-9
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| 11-17
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| 12-15
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| 1.5-2.0
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| 1.0-1.2
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| 0.1-2.0
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|-
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| polyimide
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| 150-200
 +
|
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| 1.42-1.90
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| 5-27
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| 7.1-49.5
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| 4.7-40
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| <10
 +
| 0.1-0.3
 +
| 0.3-0.4
 +
|-
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| polyisoprene
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| -70 to -<br />    74
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| 1.53
 +
| 0.92
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|-
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| polyxylylene
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| 60-100
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| 1.669
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|-
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| siloxane
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| -125
 +
| 1.41
 +
| 1.30-1.34
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| 4-8
 +
| 9-19
 +
| 9-15
 +
|
 +
| 1-1.5
 +
|
 +
|-
 +
| polyester
 +
| 70
 +
| 1.55
 +
| 1.12-1.46
 +
| 6-12
 +
| 8.5-18.5
 +
| 13-36.5
 +
| 20
 +
| 2-8
 +
|
 +
|}
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
  
 
termoestable (Esp.);  thermodurci (Fr.); resina termoindurente (It.); resina termoendurecível (Port.); thermosetting resin;
 
termoestable (Esp.);  thermodurci (Fr.); resina termoindurente (It.); resina termoendurecível (Port.); thermosetting resin;
  
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== Comparisons ==
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== For easy printing or to download ==
  
 
[[media:download_file_307.pdf|Physical Properties for Selected Thermoset Resins]]
 
[[media:download_file_307.pdf|Physical Properties for Selected Thermoset Resins]]
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* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971  Comment: p. 789
 
* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971  Comment: p. 789
−
 
 
* Ralph Mayer, ''A Dictionary of Art Terms and Techniques'', Harper and Row Publishers, New York, 1969 (also 1945 printing)
 
* Ralph Mayer, ''A Dictionary of Art Terms and Techniques'', Harper and Row Publishers, New York, 1969 (also 1945 printing)
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* Theodore J. Reinhart, 'Glossary of Terms', ''Engineered Plastics'', ASM International, 1988
 
* Theodore J. Reinhart, 'Glossary of Terms', ''Engineered Plastics'', ASM International, 1988
−
 
 
* Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982
 
* Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982
−
 
 
* Pam Hatchfield, ''Pollutants in the Museum Environment'', Archetype Press, London, 2002
 
* Pam Hatchfield, ''Pollutants in the Museum Environment'', Archetype Press, London, 2002
−
 
 
* Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
 
* Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
  

Latest revision as of 12:30, 13 October 2024

Description

A polymer that, once fused, cannot be resoftened with heat. Thermoset polymers are usually insoluble in most solvents. Examples of thermoset polymers are Epoxies, Silicones, and Phenolics along with some Polyesters and Polyurethanes.

Physical Properties for Selected Thermoset Resins

polymer Tg © Ref.index (film) Density Tensile strength (1000 psi) Flexural strength (1000 psi) Compres- sive strength (1000 psi) Elongtaion at break (%) Shrinkage (%) water absorption (24 hrs.)
casein 35 1.33 (sol'n);
1.4-1.5 (film) 		1.35
chlorinated rubber 1.55-1.60 1.24
epoxy resin 90-180 1.56 1.1-1.4 4-13 13-21 15-21.5 2.6 0.1-0.4 0.01-0.10
melamine formaldehyde 1.65 1.40-1.48 7-9 11-14 40-45 1.0-1.5 0.01-1.3
phenol formaldehyde 1.70 1.30-1.86 6-9 11-17 12-15 1.5-2.0 1.0-1.2 0.1-2.0
polyimide 150-200 1.42-1.90 5-27 7.1-49.5 4.7-40 <10 0.1-0.3 0.3-0.4
polyisoprene -70 to -
74 		1.53 0.92
polyxylylene 60-100 1.669
siloxane -125 1.41 1.30-1.34 4-8 9-19 9-15 1-1.5
polyester 70 1.55 1.12-1.46 6-12 8.5-18.5 13-36.5 20 2-8

Synonyms and Related Terms

termoestable (Esp.); thermodurci (Fr.); resina termoindurente (It.); resina termoendurecível (Port.); thermosetting resin;

For easy printing or to download

Physical Properties for Selected Thermoset Resins

Resources and Citations

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 789
  • Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
  • Theodore J. Reinhart, 'Glossary of Terms', Engineered Plastics, ASM International, 1988
  • Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
  • Pam Hatchfield, Pollutants in the Museum Environment, Archetype Press, London, 2002
  • Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000

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