Download or read book Preparation of Polyurethane Elastomer by Using Bis 3 allyloxy 2 propanol Diphenylolpropane as a Crosslinking Agent written by Kantima Kaenaramit and published by . This book was released on 1997 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research is to prepare polyurethane and polyurethane/polystyrene elastomers by using Bis-(3-allyloxy-2-propanol) diphenylolpropane (BAPD) as a crosslinking agent. BAPD contains unsaturated double bonds at both terminals and two hydroxy groups in the molecule. The structures of the obtained polyurethane and polyurethane/polystyrene elastomers are crosslinked network. The compatibility of different phases in the elastomers could be observed from the transparency of the materials and by SEM technique. The mechanical properties including tensile strength and elongation at break of PU and PU/PS elastomers were measured. The values of tensile strength and elongation at break of polymers were in the ranges of 9.59-77.01 kg/cm2 and 57.55-294.57 %, respectively depending upon the equivalent weight ratio, initiator and amount of styrene monomer used. The glass transition temperature and thermal stability were determined by differential scaning calorimetry and thermogravimetric analysis.

Download or read book Preparation and Crosslinking of 2 2 bis 4 2 3 epithiopropoxy phenyl propane written by V. Marousek and published by . This book was released on 1988 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Porous Ceramic Materials written by Dean Mo Liu and published by Trans Tech Publications Ltd. This book was released on 1995-09-26 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of porous ceramic materials has presented a new challenge to various industries, because porous ceramics are more durable in severe environments and their surface characteristics permit them to satisfy very specific requirements.

Download or read book The Lamb L agneau written by François Mauriac and published by . This book was released on 1955 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: The de Mirbel family, fifteen years before they appear in the author's novel "A woman of the Pharisees". The theme is redemptive power of love.