Abhimanyu Tharayil

8 Questions 9 Answers 0 Followers

Questions related from Abhimanyu Tharayil

In my LLDPE-ZnO composite at 15 wt% ZnO the Youngs modulus increased but storage modulus decreased. I can't understand why ?

I am using LLDPE as polymer and ZnO (40 micron diameter) powder as filler.Upon doing tensile testing I found that the Young's Modulus decreased till 3 wt% and then increased till 15% and then...

09 September 2017 2,861 3 View

Does using Hydroxyapatite as a composite in polymeric heart valve, increase the chance for calcification?

For Example, making HA-LLDPE composite polymeric heart valve, Will the chances for calcification increase?

08 August 2016 8,402 3 View

Does single leaflet mechanical heart valve have any advantage over bileaflet mechanical heart valve?

For example TTK chitra valve still uses single leaflet valve, whereas SJM uses bi-leaflet.But could not find the advantages of mono-leaflet over bi-leaflet?

05 May 2016 1,037 3 View

Why should a drug be coated with a polymer for its delivery?What is so novel about it?

I mean why can't we just take it just like that?What are the advantages of coating it with a polymer?

09 September 2015 6,620 0 View

In the case of pH sensitive hydrogels that are used for drug release,how can I make sure that the drug releases at a particular pH?

For example, pH of stomach is around 3, so how can I make sure that the drug doesn't get released at a pH 4? How can I make sure exactly that it gets released at a particular said pH, and not...

01 January 2015 10,015 3 View

Why are my polymer films very sticky and very brittle after drying?

Polymer is Poly-2-ethyl-2-Oxazoline.I have added both PVA and PEG to it,still its sticky at room temperature humidity. If I dry it in a desiccator, it turns very brittle. How do I overcome this...

01 January 2015 3,634 11 View

How do I plot the graph of a function without the graph changing when I change the X and Y increments?

I am trying to plot the graph of a function, but as I change the increments in X and Y axis, the graph changes, so how to decide whether its increasing? This is the graph for the same function,but...

11 November 2014 6,382 2 View

Can anyone suggest a method for making polymer films?

I am trying to make Poly-2-ethyl 2 Oxazoline films, but films become very brittle after drying. I am making it by solution casting at room temperature.

11 November 2014 3,573 8 View