| Identification | Back Directory | [Name]
PHENOL-FORMALDEHYDE RESIN | [CAS]
9003-35-4 | [Synonyms]
RESOLE
Novolac
P-F-R-2
PF resins
Phenolpac
Phenolic resin
Phenolic resins
PHENOL-FORMRESIN
Resins, phenolic
Phenolic resin 264
Phenolic resin 213
Phenolic resin 215
Phenolic resin 217
Phenolic resin 203
Phenolic resin 214
Phenolic resin 665
Phenolic resin 401
Phenolic resin 212
Phenolic resin 351
Phenolic resin 216
Phenolic resin 2123
Phenolic resin 2127
Phenolic resin 2124
Phenolic resin 2183
Phenolic resin 2130
Phenolic resin 3201
phenol-formaldehyde
RESOLE COPOLYMER RESIN
phenolic microballoons
Phenolic casting resin
Phenolic resin FFD-384
Phenolie resin FFD-302
Phenolic plastic powder
NOVOLAC COPOLYMER RESIN
Phenolic resin,thermoset
Phenolic foam resin 2402
Phenolic resin FFD-381-P
PHENOL-FORMALDEHYDE RESIN
phenol-formaldehyderesins
FORMALDEHYDE-PHENOLRESINS
PHENOL-FORMALDEHYDERESIN-2
Phenol-formaldehydepolymer
PHENOLFORMALDEHYDEPOLYMERS
Sulfomethyl-phenolic resin
Phenolic moulding plastics
Formaldehyde - phenol (1:1)
Resins, phenol/formaldehyde
Phenolic resin,PET modified
Phenolicresin,thermoplastic
Formaldehyde,phenol polymer
Phenolphormaldehydresin2123
Phenolic soya bean oil resin
Phenolic resin,water-soluble
Phenolic plastic powder A105
Phenolic resin,self-hardening
Formaldehyde-phenol copolymer
Phenolic moulding powder R121
Phenolic moulding powder D131
Phenolic moulding powder D141
Phenolic moulding powder R131
PHENOLIC MODIFIED ROSIN ESTER
phenol,polymerwithformaldehyde
Phenol Formaldehyde Resin,Resol
Paraformaldehyde, phenol polymer
resole(phenol-formaldehyderesin)
Phenolic resin,melamine modified
Phenolic monlding powder,antiwear
Phenolic resin,rosin modified 212
Phenolic moulding plastics SP1191
Phenol Formaldehyde Resin,Novolac
Phenolic resin,rosin modified 210
Formaldehyde·phenol polycondensate
Phenolic resin,rosin modified 2116
Phenolic resin,rosin modified 2210
Phenolic moulding plastics PF2A2-151
Phenolic moulding plastics PF2S1-931
Phenolic moulding plastics PF2A2-141
Phenolic moulding plastics PF2A2-131
Phenolic moulding plastics PF2C3-631
Phenolic moulding plastics PF2C5-631
Phenolic moulding plastics PF2C3-431
Phenolic moulding plastics PF2A1-131
Phenolic moulding plastics PF2S1-441
Phenolic moulding plastics PF2A4-161
Phenolic moulding plastics PF1A2-1501
Phenolic moulding plastics PF2S1-5802
Phenolic moulding plastics PF2A3-8101
Phenolic moulding plastics PF2A3-1601
Phenolic resin,melamine modified 6810
Phenolic moulding plastics PF2A4-161J
Water-soluble phenolic resin adhesive
Phenolic moulding plastics PF2E4-2304
ACID-CATALYSEDPHENOLFORMALDEHYDERESIN
ACID-CATALYZEDPHENOLFORMALDEHYDERESIN
Phenolic moulding plastics PF2C3-431J
Phenolic moulding plastics PF2A1-131f
Phenolic moulding plastics PF2S1-4602
Phenolic moulding plastics PF2A2-151J
Phenolic moulding plastics PF2A2-161J
PHENOLFORMALDEHYDERESIN,ACID-CATALYZED
Phenol-Formaldehyd-Kondensationsprodukt
PHENOLFORMALDEHYDERESIN,ALKALICATALYZED
Phenolic resin,dimethylbenzene modified
Paraformaldehyde,formaldehyde,phenol polymer
Phenolic resin,thermoplastic,high softening point
Phenolic granular injection moulding plastics SP6740
Phenolic granular injection moulding plastic SP2501J | [EINECS(EC#)]
1533716-785-6 | [Molecular Formula]
C7H6O2 | [MDL Number]
MFCD01940166 | [MOL File]
9003-35-4.mol | [Molecular Weight]
122.121 |
| Chemical Properties | Back Directory | [Melting point ]
94 °C | [Boiling point ]
229.3℃[at 101 325 Pa] | [density ]
1.10 g/cm3 | [vapor pressure ]
3.18Pa at 25℃ | [storage temp. ]
Sealed in dry,Room Temperature | [Stability:]
Stable. Incompatible with strong oxidizing agents. | [Water Solubility ]
1.557mg/L at 25℃ | [Dielectric constant]
4.5（Ambient） | [LogP]
3.564 at 25℃ | [EPA Substance Registry System]
Formaldehyde phenol polymer (9003-35-4) |
| Hazard Information | Back Directory | [Chemical Properties]
The phenolic resins most widely used are low
molecular weight butylated resols, which contain phenolic
hydroxyl groups and etherified and unetherified methylol groups. The epoxy
resins used have a molecular weight of 3000-4000 and therefore contain
secondary hydroxyl groups. | [Uses]
Phenol-formaldehyde resin is used in binders, adhesives, laminates, impregnation products, surface coatings, casting sand, etc. | [Preparation]
Phenol-formaldehyde resin is prepared as follows:
C6H5OH+H2C=O ---> [-C6H2(OH)CH2-]n
One-Stage Resins. The ratio of formaldehyde to phenol is high enough to allow the thermosetting process to take place without the addition of other sources of cross-links.
Two-Stage Resins. The ratio of formaldehyde to phenol is low enough to prevent the thermosetting reaction from occurring during manufacture of the resin. At this point the resin is termed novolac resin. Subsequently, hexamethylenetetramine is incorporated into the material to act as a source of chemical cross-links during the molding operation (and conversion to the thermoset or cured state). | [Flammability and Explosibility]
Notclassified | [Industrial uses]
Phenol-formaldehyde resin is a synthetic resin, commonly known as phenolic, made by the reaction of phenol and formaldehyde, and employed as a molding material for the making of mechanical and electrical parts. The resins are also used for laminating, coatings, and casting resins.
Phenolic resins are used most extensively as thermosetting plastic materials, as there are only a few uses as thermoplastics. The polymer is composed of carbon, hydrogen, oxygen, and sometimes nitrogen. Its molecular weight varies from a very low value during its early state of formation to almost infinity in its final state of cure. The chemical configuration, in the thermoset state, is usually represented by a threedimensional network in which the phenolic nuclei are linked by methylene groups. The completely cross-linked network requires three methylene groups to two phenolic groups. A lesser degree of cross-linking is attainable either by varying the proportions of the ingredients or by blocking some of the reactive positions of the phenolic nucleus by other groups, such as methyl, butyl, etc. Reactivity can be enhanced by increasing the hydroxyl groups on the phenolic nuclei, for example, by the use of resorcinol.
The outstanding characteristics of phenolics are good electrical properties, very rigid set, good tensile strength, excellent heat resistance, good rigidity at elevated temperature, good aging properties; also, good resistance to water, organic solvents, weak bases, and weak acids. All these characteristics are coupled with relatively low cost.
| [Industrial uses]
Phenolic resins are used for low-cost partsrequiring good electrical insulating properties,heat resistance, or chemical resistance. Theaverage shelf life of this resin is about 1 monthat 21.1°C. This can be extended by storing it ina refrigerator at 1.6 to 10°C. Varying the catalyst(according to the thickness of the cast) andraising the cure temperature to 93°C will alterthe cure time from as long as 8 h to as short as15 min.
Some shrinkage occurs in the finished casting(0.012 to 0.6 mm/mm), depending on thequantity of filler, amount of catalyst, and therate of cure. Faster cure cycles produce a higherrate of shrinkage. Since the cure cycle can beaccelerated, phenolics are used in short-runcasting operations.
Cast phenolic parts are easily removed fromthe mold if the parting agents recommended bythe supplier are used. Posteuring improves thebasic properties of the finished casting. |
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