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Events — 1997
February 1997
Additives for Polymers
important additive in rubber sealing caps for pharmaceutical products. It provides reinforcement and chemical inertness, while also having a low content of heavy metal and extractable substances and offering easy processing. International Polymer Science and Technology, Vol. 23, No. 8, 1996 (tr. from Gummi Fasern Kunststoffe)
Treatment of sisal to improve composites with polyethylene Chemical treatments using sodium hydroxide, isocyanate, permanganate and peroxide improve the fibre/polymer interface bonding of sisal-reinforced polyethylene and also considerably enhance the tensile properties of the composite, but to differing degrees. Treatment with CTDIC (cardanol derivative of toluene diisocyanate) reduces the hydrophilic nature of the sisal fibre and thus improves the tensile properties of low density polyethylene/sisal composites. In an examination by researchers at Mahatma Ghandi University and the Regional Research Institute, Kerala, India, using scanning electron microscopy (SEM), photomicrographs of fracture surfaces showed that in CTDICtreated composites the polyethylene was highly bonded to the sisal fibre. Enhancement by addition of small amounts of peroxides was attributed to peroxide-induced grafting of the polyethylene onto the sisal fibre surfaces. The best tensile properties were obtained from composites which had been treated with dicumyl peroxide, and with CTDIC. The overall ranking of the different treatments for their improvement in properties was: DCP > CTDIC > BP > KMnO, > alkali. PE/sisal composites have an appearance like wood, and can be used as a substitute for wood. Polymer, Vol. 5139-5149
37
0 1997 Elsevier Science
No.
23,
1996,
pp
EVENTS - 1997 March 3-6, New Delhi, India Plastindia ‘97, 3rd international exhibition Nowea International GmbH, 40474 Diisseldorf Germany; tel: +49-211 45 60 7 17; fax: +49-211 46 60 7 40 March 16- 19, Birmingham, UK Glassex ‘97, exhibition Emap Business Communications, 19 Scarbrook Rd, Croydon CR9 lQH, UK; tel: +44- 18 1 688 7788; fax: +44- 18 1 686 7224 March 19-21, San Antonio, USA Carbon Black World ‘97, conference Intertech Conferences, 411 US Route One, Portland MA 04105, USA; tel: +I-207 781 9800; fax: +l-207 781 2150 April 22-26, Goteborg, Sweden Scanplast 97, plastics and rubber exhibition Svenska Massan StifIelse, PO Box 5222, S-402 24 Goteborg, Sweden; tel: 46-3 1 708 8000; fax: +46-3 1 18 8629 April 23-25, Paris, France JEC ‘97, international composites exhibition and conference CPC, 65 rue de Prony, F-75854 Paris Cedex 17, France; tel: +33-l 4491 1644; fax: +33-l 4763 5739 May 5-10, Milan, Italy Plast ‘97, exhibition Enfiplast, Centro Commerciale Milanofiori, Palazzo F2, I-200090 Assago (MI), Italy; tel: +39-2 5751 2700; fax: +39-2 5751 2490 June 16-20, Chicago, USA NPE 1997 - National Plastics Exposition and Conference WE 1997 Exposition, 1275 K Street NW, Suite 300, Washington DC 20005, USA; tel: +l-202 289 6900; fax: +l-202 789 2596 September 8- 11, Manchester, UK Euro-Fillers ‘97, international conference British Plastics Federation, 6 Bath Place, Rivington Street, London EC2A 3JE, UK; tel: +44-171 457 5000; fax: +44-171 457 5045
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Additives for Polymers
important additive in rubber sealing caps for pharmaceutical products. It provides reinforcement and chemical inertness, while also having a low content of heavy metal and extractable substances and offering easy processing. International Polymer Science and Technology, Vol. 23, No. 8, 1996 (tr. from Gummi Fasern Kunststoffe)
Treatment of sisal to improve composites with polyethylene Chemical treatments using sodium hydroxide, isocyanate, permanganate and peroxide improve the fibre/polymer interface bonding of sisal-reinforced polyethylene and also considerably enhance the tensile properties of the composite, but to differing degrees. Treatment with CTDIC (cardanol derivative of toluene diisocyanate) reduces the hydrophilic nature of the sisal fibre and thus improves the tensile properties of low density polyethylene/sisal composites. In an examination by researchers at Mahatma Ghandi University and the Regional Research Institute, Kerala, India, using scanning electron microscopy (SEM), photomicrographs of fracture surfaces showed that in CTDICtreated composites the polyethylene was highly bonded to the sisal fibre. Enhancement by addition of small amounts of peroxides was attributed to peroxide-induced grafting of the polyethylene onto the sisal fibre surfaces. The best tensile properties were obtained from composites which had been treated with dicumyl peroxide, and with CTDIC. The overall ranking of the different treatments for their improvement in properties was: DCP > CTDIC > BP > KMnO, > alkali. PE/sisal composites have an appearance like wood, and can be used as a substitute for wood. Polymer, Vol. 5139-5149
37
0 1997 Elsevier Science
No.
23,
1996,
pp
EVENTS - 1997 March 3-6, New Delhi, India Plastindia ‘97, 3rd international exhibition Nowea International GmbH, 40474 Diisseldorf Germany; tel: +49-211 45 60 7 17; fax: +49-211 46 60 7 40 March 16- 19, Birmingham, UK Glassex ‘97, exhibition Emap Business Communications, 19 Scarbrook Rd, Croydon CR9 lQH, UK; tel: +44- 18 1 688 7788; fax: +44- 18 1 686 7224 March 19-21, San Antonio, USA Carbon Black World ‘97, conference Intertech Conferences, 411 US Route One, Portland MA 04105, USA; tel: +I-207 781 9800; fax: +l-207 781 2150 April 22-26, Goteborg, Sweden Scanplast 97, plastics and rubber exhibition Svenska Massan StifIelse, PO Box 5222, S-402 24 Goteborg, Sweden; tel: 46-3 1 708 8000; fax: +46-3 1 18 8629 April 23-25, Paris, France JEC ‘97, international composites exhibition and conference CPC, 65 rue de Prony, F-75854 Paris Cedex 17, France; tel: +33-l 4491 1644; fax: +33-l 4763 5739 May 5-10, Milan, Italy Plast ‘97, exhibition Enfiplast, Centro Commerciale Milanofiori, Palazzo F2, I-200090 Assago (MI), Italy; tel: +39-2 5751 2700; fax: +39-2 5751 2490 June 16-20, Chicago, USA NPE 1997 - National Plastics Exposition and Conference WE 1997 Exposition, 1275 K Street NW, Suite 300, Washington DC 20005, USA; tel: +l-202 289 6900; fax: +l-202 789 2596 September 8- 11, Manchester, UK Euro-Fillers ‘97, international conference British Plastics Federation, 6 Bath Place, Rivington Street, London EC2A 3JE, UK; tel: +44-171 457 5000; fax: +44-171 457 5045
11