From Wikipedia, the free encyclopedia

History of antioxidants [1]


Trixylylphosphate

Project Osprey/sandbox4
Names
Other names
  • tris(dimethylphenyl) phosphate
  • Tri-dimethyl phenyl phosphate
  • Tri-xylenyl phosphate
Identifiers
EC Number
  • 246-677-8
Properties
C24H27O4P
Molar mass 410.450 g·mol−1
Appearance Viscous liquid
Density 1.142
Melting point −20 °C (−4 °F; 253 K)
Boiling point 394 °C (741 °F; 667 K)
20 µg/L
Hazards
GHS labelling:
GHS08: Health hazard
Danger
H360F
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Trixylyl phosphate (TXP) is an aromatic phosphate ester historically used as a hydraulic fluid.

Chirality


Molecular symmetry elements
Rotational
axis (Cn)
Improper rotational elements (Sn)
  Chiral
no Sn
Achiral
mirror plane
S1 = σ
Achiral
inversion centre
S2 = i
C1
C2

Uric

Tautomers of uric acid

Lactam form Lactim form


Tautomers of uric acid

pKa1
Lactam form Lactim form Urate ion

Thermosets example table

Name Properties Applications
Example Example Example
Example Example Example
Example Example Example

formaldehyde base

  • Diallyl-phthalate (DAP)
  • Epoxy resin
  • Epoxy novolac resins


  • Polyester resin fiberglass systems: sheet molding compounds and bulk molding compounds; filament winding; wet lay-up lamination; repair compounds and protective coatings.
  • Polyurethanes: insulating foams, mattresses, coatings, adhesives, car parts, print rollers, shoe soles, flooring, synthetic fibers, etc. Polyurethane polymers are formed by combining two bi- or higher functional monomers/oligomers.
  • Polyurea/ polyurethane hybrids used for abrasion resistant waterproofing coatings.
  • Vulcanized rubber.
  • Bakelite, a phenol- formaldehyde resin used in electrical insulators and plasticware.
  • Duroplast, light but strong material, similar to Bakelite used for making car parts.
  • Urea-formaldehyde foam used in plywood, particleboard and medium-density fiberboard.
  • Melamine resin used on worktop surfaces. [1]
  • Diallyl-phthalate (DAP) used in high temperature and mil-spec electrical connectors and other components. Usually glass filled.
  • Epoxy resin [2] used as the matrix component in many fiber reinforced plastics such as glass-reinforced plastic and graphite-reinforced plastic; casting; electronics encapsulation; construction; protective coatings; adhesives; sealing and joining.
  • Epoxy novolac resins used for printed circuit boards, electrical encapsulation, adhesives and coatings for metal.
  • Benzoxazines, used alone or hybridised with epoxy and phenolic resins, for structural prepregs, liquid molding and film adhesives for composite construction, bonding and repair.
  • Polyimides and Bismaleimides used in printed circuit boards and in body parts of modern aircraft, aerospace composite structures, as a coating material and for glass reinforced pipes.
  • Cyanate esters or polycyanurates for electronics applications with need for dielectric properties and high glass temperature requirements in aerospace structural composite components.
  • Mold or mold runners (the black plastic part in integrated circuits or semiconductors).
  • Furan resins used in the manufacture of sustainable biocomposite construction, [3] cements, adhesives, coatings and casting/foundry resins.
  • Silicone resins used for thermoset polymer matrix composites and as ceramic matrix composite precursors.
  • Thiolyte, an electrical insulating thermoset phenolic laminate material.
  • Vinyl ester resins used for wet lay-up laminating, molding and fast setting industrial protection and repair materials.


table

Polymer Production (Mt)
Low-density polyethylene (LDPE) 64
High-density polyethylene (HDPE) 52
polypropylene (PP) 68
Polystyrene (PS) 25
Polyvinyl chloride (PVC) 38
Polyethylene terephthalate (PET) 33
Polyurethane (PUR) 27
PP&A Fibers [4] 59
All Others 16
Additives 25
Total 407
Global plastic production by polymer type (2015) [5]
  1. ^ Roberto C. Dante, Diego A. Santamaría and Jesús Martín Gil (2009). "Crosslinking and thermal stability of thermosets based on novolak and melamine". Journal of Applied Polymer Science. 114 (6): 4059–4065. doi: 10.1002/app.31114.
  2. ^ Enrique Guzman; Joël Cugnoni; Thomas Gmür (2014). "Multi-factorial models of a carbon fibre/epoxy composite subjected to accelerated environmental ageing". Composite Structures. 111 (4): 179–192. doi: 10.1016/j.compstruct.2013.12.028.
  3. ^ T Malaba, J Wang, Journal of Composites, vol. 2015, Article ID 707151, 8 pages, 2015. doi: 10.1155/2015/707151
  4. ^ Cite error: The named reference PP&A was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Geyer2017 was invoked but never defined (see the help page).
From Wikipedia, the free encyclopedia

History of antioxidants [1]


Trixylylphosphate

Project Osprey/sandbox4
Names
Other names
  • tris(dimethylphenyl) phosphate
  • Tri-dimethyl phenyl phosphate
  • Tri-xylenyl phosphate
Identifiers
EC Number
  • 246-677-8
Properties
C24H27O4P
Molar mass 410.450 g·mol−1
Appearance Viscous liquid
Density 1.142
Melting point −20 °C (−4 °F; 253 K)
Boiling point 394 °C (741 °F; 667 K)
20 µg/L
Hazards
GHS labelling:
GHS08: Health hazard
Danger
H360F
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Trixylyl phosphate (TXP) is an aromatic phosphate ester historically used as a hydraulic fluid.

Chirality


Molecular symmetry elements
Rotational
axis (Cn)
Improper rotational elements (Sn)
  Chiral
no Sn
Achiral
mirror plane
S1 = σ
Achiral
inversion centre
S2 = i
C1
C2

Uric

Tautomers of uric acid

Lactam form Lactim form


Tautomers of uric acid

pKa1
Lactam form Lactim form Urate ion

Thermosets example table

Name Properties Applications
Example Example Example
Example Example Example
Example Example Example

formaldehyde base

  • Diallyl-phthalate (DAP)
  • Epoxy resin
  • Epoxy novolac resins


  • Polyester resin fiberglass systems: sheet molding compounds and bulk molding compounds; filament winding; wet lay-up lamination; repair compounds and protective coatings.
  • Polyurethanes: insulating foams, mattresses, coatings, adhesives, car parts, print rollers, shoe soles, flooring, synthetic fibers, etc. Polyurethane polymers are formed by combining two bi- or higher functional monomers/oligomers.
  • Polyurea/ polyurethane hybrids used for abrasion resistant waterproofing coatings.
  • Vulcanized rubber.
  • Bakelite, a phenol- formaldehyde resin used in electrical insulators and plasticware.
  • Duroplast, light but strong material, similar to Bakelite used for making car parts.
  • Urea-formaldehyde foam used in plywood, particleboard and medium-density fiberboard.
  • Melamine resin used on worktop surfaces. [1]
  • Diallyl-phthalate (DAP) used in high temperature and mil-spec electrical connectors and other components. Usually glass filled.
  • Epoxy resin [2] used as the matrix component in many fiber reinforced plastics such as glass-reinforced plastic and graphite-reinforced plastic; casting; electronics encapsulation; construction; protective coatings; adhesives; sealing and joining.
  • Epoxy novolac resins used for printed circuit boards, electrical encapsulation, adhesives and coatings for metal.
  • Benzoxazines, used alone or hybridised with epoxy and phenolic resins, for structural prepregs, liquid molding and film adhesives for composite construction, bonding and repair.
  • Polyimides and Bismaleimides used in printed circuit boards and in body parts of modern aircraft, aerospace composite structures, as a coating material and for glass reinforced pipes.
  • Cyanate esters or polycyanurates for electronics applications with need for dielectric properties and high glass temperature requirements in aerospace structural composite components.
  • Mold or mold runners (the black plastic part in integrated circuits or semiconductors).
  • Furan resins used in the manufacture of sustainable biocomposite construction, [3] cements, adhesives, coatings and casting/foundry resins.
  • Silicone resins used for thermoset polymer matrix composites and as ceramic matrix composite precursors.
  • Thiolyte, an electrical insulating thermoset phenolic laminate material.
  • Vinyl ester resins used for wet lay-up laminating, molding and fast setting industrial protection and repair materials.


table

Polymer Production (Mt)
Low-density polyethylene (LDPE) 64
High-density polyethylene (HDPE) 52
polypropylene (PP) 68
Polystyrene (PS) 25
Polyvinyl chloride (PVC) 38
Polyethylene terephthalate (PET) 33
Polyurethane (PUR) 27
PP&A Fibers [4] 59
All Others 16
Additives 25
Total 407
Global plastic production by polymer type (2015) [5]
  1. ^ Roberto C. Dante, Diego A. Santamaría and Jesús Martín Gil (2009). "Crosslinking and thermal stability of thermosets based on novolak and melamine". Journal of Applied Polymer Science. 114 (6): 4059–4065. doi: 10.1002/app.31114.
  2. ^ Enrique Guzman; Joël Cugnoni; Thomas Gmür (2014). "Multi-factorial models of a carbon fibre/epoxy composite subjected to accelerated environmental ageing". Composite Structures. 111 (4): 179–192. doi: 10.1016/j.compstruct.2013.12.028.
  3. ^ T Malaba, J Wang, Journal of Composites, vol. 2015, Article ID 707151, 8 pages, 2015. doi: 10.1155/2015/707151
  4. ^ Cite error: The named reference PP&A was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Geyer2017 was invoked but never defined (see the help page).

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