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2003 | 06 | 2 |

Tytuł artykułu

The effect of grafting particles with acetoacetyl groups on the properties of particleboards

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
The aim of the study was to investigate the acetoacetylation of particles on the formaldehyde content and the physical and mechanical properties of particleboards, glued with the UF resin. The produced particleboards were subjected to the following tests: internal bond, modulus of rupture, modulus of elasticity, swelling in thickness after 24 hours of soaking in water, the content and the emission of formaldehyde. Results of the study make it possible to state that spreading ethyl acetoacetate on the particles before gluing, results in the decrease in the content as well as the emission of formaldehyde from particleboards, without causing essential changes in their physical and mechanical properties.

Wydawca

-

Rocznik

Tom

06

Numer

2

Opis fizyczny

http://www.ejpau.media.pl/series/volume6/issue2/wood/art-02.html

Twórcy

autor
  • The August Cieszkowski Agricultural University of Poznan, Wojska Polskiego 38-42, 60-627 Poznan, Poland
autor
autor

Bibliografia

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  • Roffael E., 1980, Modifizierung von Harnstofformaldehydharzen mit Resorcin [Modification of UF resin with resorcinol]. Adhäsion. 24, 422-424 [in German].
  • Roffael E., Dix B., Miertzsch H., Schwarz T., Kehr E., Scheithauer M., Hoferichter E., 1993. Feuchtebeständigkeit und Hydrolyseresistanz von Holz-zuHolz-Bindungen in Spanplatten, hergestellt mit formaldehydarmen modifizierten Harnstoff-Formaldehydarzen unter Einsatz verschiedener Härtungsbeschleunigersystem. Teil 1: Eigenschaften von unmodifizierten und modifizierten Harnstoff-Formaldehydarzen (UF-Harze) [Moisture and resistance of particleboards, bonded with unmodified and modified low formaldehyde UF-resin using different catalyst systems. Part 1: Properties of unmodified and modified UF resin]. Holz Roh. Werkstoff. 51, 197-207 [in German].
  • Łęcka J., Morze Z., M. Sedliačik M., 1995. Effect of the modification urea resin with the resorcine and its alkyloderivatives upon properties of particle boards. 12th Sympózium “Pokroky vo výrobe a použití lepidiel v drevárskom priemysle”. Zvolen. Zb. ref. 48–57.
  • Wittman O., 1983. Herstellung von Spanplatten mit verstärkten Aminoplast-Leimhärzen [Production of particleboards with reinforced amino resins]. Holz Roh. Werkstoff. 10, 431-435 [in German].
  • Mercer T. A., Pizzi A., 1994. Condensation on the principles of preparation of melamine-urea-formaldehyde resins for particleboards. Holzforsch. Holzverwert. 46(3), 51-54.
  • Kehr E., Scheithauer M., Hoferichter E., 1993. Feuchtebeständigkeit und Hydrolyseresistanz von Holz-zu-Holzbindungen in Spanplatten, hergestellt mit formaldehydarmen modifizierten Harnstoff-Formaldehydarzen unter Einsatz verschiedener Hartungsbeschleunigersystem. Teil 2: Herstellung und Eigenschaften von mit unmodifizierten Harnstoff-Formaldehydharzen (UF-Harze) hergestellten Spanplatten [Moisture and resistance of particleboards, bonded with unmodified and modified low formaldehyde UF-resin using different catalyst systems. Part 2: Preparation and properties of particleboards bonded with unmodified low formaldehyde resins]. Holz Roh. Werkstoff. 51(6), 365-372 [in German].
  • Kehr E., Riehl G., Hoferichter E., Roffael E., Dix B., 1994. Moisture and hydrolysis resistance of particleboards, bonded with unmodified and modified low formaldehyde UF-resins using different catalyst systems. Part 3: Properties of particleboards bonded with modified low-formaldehyde resins. Holz Roh. Werkstoff. 52, 253-260.
  • Roffael E., Dix B, Kehr E., 1995. Moisture and hydrolysis resistance of wood-to-wood bonds in particleboards manufactured with low-formaldehyde UF resins using various catalyst systems. Part 4: Some chemical properties of particleboards bonded with unmodified and modified UF-resins. Holz Roh. Werkstoff. 53(5), 315-320.
  • Deppe H. J., 1977. Technische Fortschritte bei der Isocyanatverleimung von Holzspanplatten [Technical progress in the production of particleboards bonded with isocyanate resins]. Holz Roh. Werkstoff. 8, 295-302 [in German].
  • Sellers Jr. T., Miller G. D., Li-Shih Nieh, W., 1990. Evaluation of post-added ester and/or urea as a formaldehyde scavenger in UF resins used to bond southern pine particleboard. For. Prod. J. 41 (1), 53-56.
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  • Roffael E., Buchholzer P., 1990. Einfluß eines Formaldehdfängers auf die Eigenschaften von Faser-Span-Platten [Influence of a formaldehyde scavenger on properties of fiber- and particleboards]. Holz Roh. Werkstoff. 48, 384-387 [in German].
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  • Rowell R. M. 1982. Distribution of acetyl groups in southern pine reacted with acetic anhydride. Wood Sci. 15, 172-182.
  • Rowell R. M., Tillman A. M., Liu, Z., 1986 a. Dimensional stabilization of flakeboard by chemical modification. Wood Sci. Technology, 20, 83-95.
  • Rowell R. M., Tillman A. M., Simonson R., 1986 b. A simplified procedure for the acetylation of hardwood and softwood flakes for flakeboard production. J. Wood Technol. 6(3), 427-448.
  • Rowell R. M., Banks W. B., 1987. Tensil strength and toughnesss of acetylated pine and lime flakes. Brit. Polymer J., 19, 478-482.
  • Chow P., Bao Z., Youngquist J. A., Rowell R. M., Muehl J. H., Krzysik A. M., 1996. Properties of hardboard made from acetylated aspen and southern pine. Wood Fiber Sci. 28(2), 252-258.
  • Youngquist J. A., Rowell R. M., 1986. Mechanical properties and dimensional stability of acetylated aspen flakeboard. Holz Roh. Werkstoff. 44, 453-457.
  • Rowell R. M., Imamura Y., Kawai S., Norimoto M., 1989. Dimensional stability, decay resistance, and mechanical properties of veneer-faced low-density particleboards made from acetylated wood. Wood Fiber Sci. 21(1), 67-79.
  • Del Rector F, Blount W.W., Leonard D.R., 1989. Applications for acetoacetyl chemistry in thermoset coatings. J. Coatings Technol. 61(771), 31–37.
  • Witzeman J. S., Crain A. L., Clemens R. J., 1992. Thermosetting coating compositions. PCT WO 92/21646.
  • Meyer B., Boehme Ch., 1997. Formaldehyde emission from solid wood. For. Prod. J.. 47(5), 45–48.
  • Roffael E., Mehlhorn L., 1980. Einfluss der Randbedingungen bei der Bestimmung des extrahierbaren Formaldehyds in Holzspanplatten nach der Perforatormethode [The effect of the boundary conditions on the content of formaldehyde in the particleboards determined by the perforator method]. Holz Roh. Werkstoff. 3, 85-88 [in German].
  • Tsapuk A. K., 1992. About the possibility of producing wood particleboards with extremely low formaldehyde content. Holz Roh. Werkstoff. 50, 387-388.

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

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