The role ofm-phenylenedimaleimide in reactive processing of poly(propylene)/magnesium hydroxide composites, 2. Effect of processing temperature and composite formulation on rheological properties

✍ Scribed by Khunova, V. ;Liauw, C. M. ;Alexy, P.

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 97 KB
• Volume: 269
• Category: Article
• ISSN: 0003-3146
• DOI: 10.1002/(sici)1522-9505(19990801)269:1<84::aid-apmc84>3.0.co;2-0

✦ Synopsis

In the first part of this series of papers, the effect of m-phenylenedimaleimide (BMI), processing temperature and a lubricant (a fatty acid ester/amide blend) on the mechanical properties of poly(propylene)/magnesium hydroxide composites was investigated. The second part focuses on the effect of the same formulation and processing variables on the rheological properties of the composites. In these investigations a three-factorial experimental design has been used to optimize the product composition. It has been found that BMI addition is detrimental to melt flow properties. This problem can be overcome by addition of a lubricant without unduly compromising the improved mechanical properties afforded by BMI. On the basis of calculated responses, composite formulation was optimized to obtain materials with improved mechanical properties and acceptable processing characteristics. ZUSAMMENFASSUNG: Im ersten Teil dieser Berichtsreihe wurde die Rolle des Phasenvermittlers m-Phenylendimaleimid (BMI) und eines Gleitmittels (ein Fettsa ¨ure-Ester/