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Structure and general properties of Urea-formaldehyde.Properties of urea-formaldehyde is given in detailed. The structure of Pre-Condensate is a short-chain molecule combined with CH2 bridges. the cheaper grades are sometimes lower …
Phenol-formaldehyde general properties structure. Most phenol-formaldehyde compounds are based on Novolac. Novolaks lead tp quick formulation those based on xylenol have a higher resistance to alkali. Novalac hardens after addition …
The phenol-formaldehyde short form is PF. Phenol-formaldehyde is a resin. Phenol formaldehyde was the first commercial synthetic resin. Phenol–formaldehyde is the resin that is durable and inexpensive. Physical properties of …