Nattinee Bumbudsanpharoke

6 Questions 8 Answers 0 Followers

Questions related from Nattinee Bumbudsanpharoke

Apart from casting, is there other technique for forming & drying iridescent CNC film ?

Apart from casting, is there other forming or drying technique for cellulose nanocrystals (CNC) film while preserving the chiral nematic structure and iridescent look ? I want to reduce the time...

10 April 2018 2,356 1 View

Can anyone suggest about relationship between "Chiral Nematic Pitch" and "Visible Wavelength" ?

I am confused about the terms of “pitch distance" and “visible wavelength” in chiral nematic structure as cellulose nanocrystal (CNC). When we see the iridescent color from CNC film, this is...

02 January 2017 8,770 2 View

Can anyone suggest me about viscometer for cellulose nanocrystal ?

I would like to check the viscosity for my CNC suspension; however, I have no idea how to select the viscometer. 1. Follow with TAPPI T230om8 for cellulose, Cannon-Fenske viscometer is suggested...

05 November 2016 3,666 4 View

How can we characterize the temporary pitch of swollen CNC ?

According to my cellulose nanocrystal sample, it is just a free-standing film. Currently, I know its pitch by SEM image from cross-section view. However, the pitch is temporary increased by...

05 September 2016 2,729 5 View

What can we expect from cellulose nanocrystal (CNC)-film under polarized optical microscopy (POM) ?

As my understanding, if we check CNC suspension under POM, we can investigate the birefringence behavior and chiral nematic. However, in term of free-standing film with iridescent look, what can...

23 May 2016 3,394 5 View

Is it possible that tensile strength will be dropped after keeping for a while ?

My sample is extruded LDPE film (thickness 0.6 - 0.7 micron). From test, an average of tensile strength was about 12-14 N/mm^2 (test was conducted 2 weeks after getting sample). However, I did the...

06 October 2015 2,901 6 View