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

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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...

03 April 2016 9,645 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...

31 December 2014 7,988 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...

10 November 2014 8,970 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...

06 July 2014 3,596 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.

05 June 2014 7,438 2 View

Which method is preferable for cutting the nanocomposites?

Which of the methods like water jet cutting, diamond cutting, laser cutting, etc. is more suitable to cut the carbon nanotubes reinforced epoxy composites into test sample to ensure the clean...

29 January 2021 1,354 5 View

What is the harmless way of cutting epoxy filled nanocomposite ?

I want to cut epoxy filled nanocomposite for FE-SEM analysis. What is the best way to cut it without resulting in any cracks or change in position or alignment of the particle reinforcement ? Also...

28 January 2021 7,084 5 View

How to get rid of the solvents from a PU-Ag nanocomposite?

I've synthesized a polyurethane-Ag nanocomposite and the product is dissolved in a two-component system i.e. DMF and DMSO. I wish to know of any ways that I can use to get rid of the solvents and...

27 January 2021 1,847 3 View

Why degradation of pesticides is maximum at specific pH by using nanoparticles and nanocomposite?

actually, I am degrading pesticides by using inorganic composites the pH of the pesticide in distilled water is neutral the pH of nanocomposite is also neutral then why maximum degradation takes...

23 January 2021 8,775 3 View

In the tensile test for a nanocomposite sample, if the sample width decreases (thickness is constant), what does the stress-strain curve change?

Given that the stress is equal to the force divided by the area(width*thickness), what change does the reduction in sample width make to the stress-strain curve? Does stress change occur...

09 January 2021 5,124 5 View

How to perform adsorption kinetics ?

I am trying to do a kinetic study. I am using graphene- organic compound nanocomposites to show heavy metal removal. I have plotted the graph of nanocomposite against metal ions with respect to...

05 January 2021 8,667 3 View

How to prepare the sample of polymer nanocomposite for SEM analysis ?

Does Epoxy clay nanocomposite sample require surface preparation. I am going for Gold sputtering to make the surface conductive. I guess there is no need to clean or polish the surface beneath the...

04 January 2021 1,943 8 View

What method is more useful for prepare metal/ metal oxide Nanocomposites?

If possible any easy preparation method

31 December 2020 1,662 3 View

How can we confirm the formation of heterojunction in nanocomposite systems ?

IV measurement and KPFM

21 December 2020 9,658 4 View

How to get nanocomposite of PEEK with Zirconia ?

Need a lengthy PEEK with Zirconia based nano composite of 180 mm length. Which method is possible? Tried injection molding no proper mix. Solvent casting process is also very costly. Kindly anyone...

13 December 2020 4,329 5 View

Qijin Chi

I think you should try the neutral buffer or slight basic solutions to prevent Ca filber from dissoulution. Phosphate buffer with pH 7.0-8.0.

Andrei Rogoza

@Qijin - > Ca may be stable at this pH but chitosan is not soluble :-) No idea how phosphate buffer is compartable wtih calcium-containing nanofillers, but in reality neutral solutions (pH=7-7.1) of chitosan are known and need addition of beta-glycerophosphate.

@Sarang -> chitin is soluble in trifluroethanol, hexafluroisopropanol and hexafluoroacetone hydrate. Chitosan may be soluble too.