Inquiry (采购产品): Suggestion Laboratory of polymer, Tehran –Iran Email: raminnn11@yahoo.com 10th June 2006 Dear Sir, I work on preparation of new grade of polyethylene; {Granular crosslinkable medium-density polyethylene (MDPE) without scorch inhibitor was prepared using organic peroxide through 1-Extrusion 2-Without extrusion , in industrial scale, with a simple processing}. I could prepare the new grade with minimum price and excellent properties. I am sure that the new grade will have a lot of customer especially in rotational molding (crosslinkable MDPE). I tested it in rotational molding and it works very well, for example the impact properties become more than 700% better than pure PE (both stress at break and strain at break increase so much). Crosslinking temperature is 200oC for 4 minutes. If you want I will paste a movie of crosslinked polyethylene tank which obtained from crosslinkable polyethylene. It did not break after 10 times hammering by sledgehammer. If you want I will send you the completed data sheet of the crosslinkable MDPE. Results from Izod test, ASTM D256 number Sample Temperature oC Impact Izod (Kj/M2) 1 Pure MDPE 23 13.22 2 Crosslinked MDPE(PEX) obtained from Crosslinkable MDPE 23 81.88 < (Not break) Mechanical properties, ASTM 638, 23 oC, Humidity 32% N sample Situation of test Modulus (MPa) Stress at yield (MPa) Strain at yield (%) Stress at break (MPa) Strain at break (%) Energy up to break (MJ/m3) Speed (mm/min) Weight (KN) 1 PE 55 1 489.40 16.274 14.481 3.69 411.985 514.06 2 PEX 55 1 258.88 12.696 25.635 24.68 1286.103 2301.64 I look forward to hearing from you and thanks in advance. Beast regard Mohammad **** Hidden Message ***** Mohammad m 0098 IRN Company: lab E-mail: raminnn11@yahoo.com **** Hidden Message ***** raminnn11@yahoo.com
