Sarang Bari

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Questions related from Sarang Bari

Where should micro-tensile testing machine be available in Maharashtra, India?

I have to test brittle film of chitosan nanocomposites for tensile strength, which is not possible under UTM due to their brittleness. Thickness of films is 0.80 mm approximately. Where should I...

04 April 2016 9,703 2 View

Why is there a need of dispersion only, not dissolution of nanoparticles in polymer matrix for preparing nanocomposites?

I am preparing Chitosan nanocomposites with calcium family nanofillers, but calcium is dissolving in acetic acid, the only best solvent for solution casting of chitosan. What should I do?

04 April 2015 3,429 2 View

What should be the quantity of surfactant for nanoparticle synthesis by reverse micelle?

I am using 0.002 M Triton-X100 as surfactant and cyclohexane as oil phase for synthesis of inorganic nanoparticle. How much I should add surfactant out of 100 ml solution prepared if precursor...

01 January 2015 8,038 8 View

What is the exact melting point of chitosan?

I want to process chitosan procured from Himedia, with degree of deacylation less than 75% for compression molding, but the compound does not melt at the reported temperature range and directly...

11 November 2014 9,123 8 View

How can I carry out vacuum filtration if filter paper is unable to tolerate vacuum?

I am doing vaccum filtration to remove water after product washings, but the filter paper breaks into holes of Buckner funnel during filtration. I put a pair of Whatman paper on, making no...

07 July 2014 3,658 13 View

Why should PEG be activated/surface modified before making its copolymer with Chitosan?

Most of the research papers I have referred include such activation, without its proper justification.

06 June 2014 7,487 2 View