Home Vestnik MGSU Library Vestnik MGSU 2012/12 METHODS OF REDUCTION OF FREE PHENOL CONTENT IN PHENOLIC FOAM

RESEARCH OF BUILDING MATERIALS

METHODS OF REDUCTION OF FREE PHENOL CONTENT IN PHENOLIC FOAM

  • Bruyako Mikhail Gerasimovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Grigor'eva Larisa Stanislavovna - Moscow State University of Civil Engineering (MGSU) Candidate of Chemical Sciences, Associate Professor; +7 (495) 287-49-14, ext. 31-43, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Vasil'eva Marina Anatol'evna - Moscow State University of Civil Engineering (MGSU) student, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Kiseleva Ol'ga Vasil'evna - Moscow State University of Civil Engineering (MGSU) master student; +7 (495) 287-49-14, ext. 31-43, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 134 - 138

Thermal insulation properties of phenolic foams that demonstrate low thermal conductivity and relatively low costs of initial components make them an efficient mineral material. An effective
method aimed at reduction of toxicity of phenolic foams consists in the introduction of a composite mixture of chelate compounds. Raw materials applied in the production of phenolic foams include polymers FRB-1A and VAG-3. The aforementioned materials are used to produce foams FRP-1. Introduction of 1% aluminum fluoride leads to the 40% reduction of the free phenol content in the foam. Introduction of crystalline zinc chloride accelerates the foaming and curing of phenolic foams.
The technology that contemplates the introduction of zeolites into the mixture includes pre-mixing with FRB -1A and subsequent mixing with VAG-3; thereafter, the composition is poured into the form, in which the process of foaming is initiated.
The content of free phenol was identified using the method of UV spectroscopy. The objective of the research was to develop methods of reduction of the free phenol content in the phenolic foam.

DOI: 10.22227/1997-0935.2012.12.134 - 138

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