Juniper Publishers Journal of Polymer science

       JUNIPER PUBLISHERS-   ACADEMIC JOURNAL OF POLYMER SCIENCE Abstract The effect of annealing on the creep and recovery properties of β -BOPP film was studied. The creep resistance can be improved obviously by annealing, the modification becomes better with elongating the duration. Four-parameter Burger model and Weibull distribution function well described such cases. Keywords:  BOPP Film; Creep; Fitting; Burger Model; Weibull Distribution Function Introduction Biaxially oriented polypropylene (BOPP) film has become a widely used film material because of its light weight, good transparency, moisture-proof, non-toxic and simple preparation process. When the content of β crystal in BOPP is increased, the toughness and thermal deformation resistance of BOPP film is greatly improved such that its application scope is expanded. However, its internal structure will undergo such complex changes as the movement of chain segments, the unwinding of molecular cha...

     JUNIPER PUBLISHERS-   ACADEMIC JOURNAL OF POLYMER SCIENCE Abstract This article will give complete overview on recent development in co-process excipient technology and approaches involved in its development. The co-processed excipients help to overcome deficiencies occurring with use of single general grade excipients. Formulation scientist recognized that the single component excipient cannot always provide the essential performance in manufacturing or formulation to certain active pharmaceutical ingredient (API). Hence attention on the production of multifunctional excipient with improve performance was seen to meet the need of formulation. In order to justify rise in new drug development and also high industrial output demand new combinations of existing excipient were tested for improving excipient functionality. Now days the particle engineering of individual excipient and their combinations by using co-processing technique has provided an attribute tool f...

JUNIPER PUBLISHERS- Academic Journal of Polymer Science Abstract In an attempt to comprehend the outdoor application potential of biochar reinforced wood and polypropylene composites, their wettability properties were investigated. The localised water affinity was measured through drop shape analysis in a Goniometer whereas the comprehensive susceptibility towards water was done through a thickness swell test. The results indicate that the addition of 12wt% of wood waste (Pinus radiata) biochar to a wood and polypropylene composite had the highest resistance towards water among the three component composites. In general, the predilection towards water increased with an increase in the amount of biochar in the composites. It is recommended to produce the biochar with low pyrolysis temperature (yielding a more hydrophobic biochar) to develop composites with acceptable water opposing properties. Keywords: Wood; Polypropylene; Biocomposites; Biochar; Wettability; Gon...