A phenol-formaldehyde de novolac resin having a low concentration of free phenol prepared by distilling residual phenol from a molten novolac resin and replacing at least a portion of the phenol with a solvent having a volatility equal to or less than phenol. Such modified novolac resins are ...
(redirected fromPhenol-formaldehyde resin) Thesaurus Acronyms Encyclopedia Related to Phenol-formaldehyde resin:novolac resin phenolic resin n (Chemistry) any one of a class of resins derived from phenol, used in paints, adhesives, and as thermosetting plastics. See alsoBakelite ...
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 ...
PHENOL-FORMALDEHYDE RESIN structure CAS No. 9003-35-4 Chemical Name: PHENOL-FORMALDEHYDE RESIN Synonyms Phenolic resin;Phenolic resins;Novolac;P-F-R-2;Phenolic resin 264;phenol-formaldehyde;phenol,polymerwithformaldehyde;RESOLE;-formaL;Phenolpac ...
. Curing can be accomplished by grinding the novolac to a powder, mixing it with fillers such as wood flour, minerals, or glass fibres, and then heating the mixture in a pressurized mold. In order to be cured to a thermosettingresin, novolacs require the addition of more formaldehyde or,...
4) Anino-novolac resin 胺基酚醛型树脂5) melaminephenolic resin 蜜胺酚醛树脂6) MF Melamine-formaldehyde resin 密胺-甲醛树脂补充资料:对重氮苯基胺线型酚醛树脂 分子式:CAS号:性质:以对重氮二苯胺与甲醛反应得到的线性缩聚物,属于光交联型感光树脂。在聚合度较低时(分子量在400～600)溶于水,其感光波长...
Carbon molecular sieve membrane (CMSM) was prepared by dip coating a phenol formaldehyde novolac resin (PFNR) based green membrane support with an ethanol solution containing PFNR and carbon molecular sieve (CMS). X-ray diffraction and nitrogen adsorption isotherms were employed to characterize the...
novolac phenol-formaldehyderelaxationt.s.d.c. measurementsThe β relaxations of novolac phenol-formaldehyde (NPF) resin were investigated by whole and partial thermally stimulated depolarization current (t.s.d…[ M. TopićZ. Katović]Polymer...
novolac or resole resins. Cardanol–formaldehyde resins have shown improved flexibility due to an internal plasticization effect of the long chain and better processability. Additionally, hydrophobic behavior was noticed due to side chains, making the resin water-repellent and resistant to weathering[91]...
The IR and 1H NMR spectra tend to presume the expected slight cross-linking of the still soluble phenol-formaldehyde novolac resin through the formation of benzoxazine rings promoted by the presence of p-tert-butyl phenol. The presence... I Iliev,H Yordanova,P Petrenko,... 被引量: 3发表:...