Effect of fiber mat moisture content on strength properties of polyisocyanate-bonded hardboard
1992; Forest Products Society; Volume: 42; Issue: 1 Linguagem: Inglês
ISSN
2376-9637
AutoresR.N. Hawke, Baosheng Sun, M.R. Gale,
Tópico(s)Wood Treatment and Properties
ResumoThis paper reports on the effects of fiber mat moisture content (MMC) (8, 15 and 22%) on strength properties of hardboard bonded at a 3% diphenylmethanediisocyanate adhesive level, and compares them to hardboard bonded at phenol-formaldehyde adhesive levels of 3 and 10% and an MMC of 7%. Test conditions consisted of dry, 24-h water-immersion, and two, four, and six cycles of ASTM D-1037 accelerated-aging treatment (AAT). MMCs of 8, 15 and 22% had no statistically significant effects on either modulus of elasticity or modulus of rupture of dry, 24-h water-immersed, or AAT specimens.
Referência(s)