This paper reports on the synthesis of Cannabis indica fiber-reinforced composites using Urea-Resorcinol-Formaldehyde (URF) as a novel matrix through compression molding technique. The polycondensation between urea, resorcinol, and formaldehyde in different molar ratios was applied to the synthesis of the URF polymer matrix. A thermosetting matrix based composite, reinforced with lignocellulose...

This study examined chemical composition of tomato stalks and their possible feasibility in the production of particleboard. Three-layer experimental particleboards with density of 0.53, 0.63, and 0.73 g cm(-3) were manufactured from tomato stalks using certain ratios of urea formaldehyde (UF) and melamine urea formaldehyde (MUF) adhesives. Modulus of elasticity (MOE), modulus of rupture (MOR),...

Microencapsulated healing agents that possess adequate strength, long shelf-life and excellent bonding to the host material are required for self-healing materials. Urea-formaldehyde microcapsules containing dicyclopentadiene were prepared by in situ polymerization in an oil-in-water emulsion that meet these requirements for self-healing epoxy. Microcapsules of 10-1000 microm in diameter were p...

C-13 ~7~JL-l,t':*JL-J... 7N:Fc I-" ~m~)-c;(" ~ :..~.:L I) 70)~""J...7 Nj'C I-" Io:.t:fl'*' t!."ft.:J5I:t'Q~.~&:fit;~.HL-t;:o DM50-d. ..~*~TQ ~ I'C-NMR A~? .. ""0) ft~ $-' 7 I~f~_.t.: $-' 7 IT Q .: ~ ~ft}rJ. 1fI.0)1r.~$-' 7 I~1nE tt;:o ;(" ~ :..0);( -1tl -"".I~.:L~ 70).-87 ~ /.to)~~t.:~ Q;( -1-v:..-M~~~l,~T <. ;(" ~ /O)~ ;(-1-V:"-Z-7NM~~t.:~Qea.~t.:~TQo I-~;(-1-D-"";(7~:"-~~;(-1-D-N .:L ~ 70)~~~...