User login

You are here

Comments

Subscribe to Comments feed
Comments
Updated: 23 hours 31 min ago

Dear Xiaoyan,

Sun, 2018-05-20 09:18

In reply to Thanks for reply

Dear Xiaoyan,

Thank you for the point. The scale of PDMS with ordered substructures is limited by the mask size, so it is not easy to get large scale coating by the current technology. What we are doing now is to synthesize porous PDMS with randomly distributed pores, tuning pore size and porosity, and integrate the porous layer to smooth PDMS to realize similar MACI mechanism, see Soft Matter 10.1039/C8SM00820E. In that way, we can synthesize the the large scale coating for practical applications.

Very interesting idea,

Fri, 2018-05-18 14:38

In reply to Self‐Sensing Paper Actuators Based on Graphite–Carbon Nanotube Hybrid Films

Very interesting idea, congratulations.

We recently proposed a graphene flake ink as a strain gauge:

C. Casiraghi, M. Macucci, K. Parvez, R. Worsley, Y. Shin, F. Bronte, C. Borri, M. Paggi, and G. Fiori, “Inkjet printed 2d-crystal based strain gauges on paper,” CARBON, vol. 129, pp. 462–467, 2018. [link]

 

Have you checked how much is the gauge factor of your device, if used as a strain gauge?

Thank you very much for the

Wed, 2018-05-16 00:47

In reply to Re: Conversion of Piezoelectric coefficients

Thank you very much for the prompt response and detailed explanation. Its more clear for me now. Thanks again!

Re: Conversion of Piezoelectric coefficients

Tue, 2018-05-15 19:06

In reply to Conversion of Piezoelectric coefficients

Please see my explanation on StackExchange.  Hope that helps.

-- Biswajit

Thanks for reply

Tue, 2018-05-15 09:11

In reply to Journal Club for May 2018: Icephobic Materials

Dear Jianying,

Thank you very much for your reply. It is indeed intriguing that there exists a critical size corresponding to the optimal ice adhesion. I just read your paper which is a fantastic work. I have one more question: Can the PDMS film with sub-structures be synthesized as the large-area coating? What’s the large size of the PDMS film with sub-structures? If it works for the large-area coating, it might be widely used for the practical applications of anti-icing.

Dear Biswajith,

Tue, 2018-05-15 05:10

In reply to Re: Conversion of Piezoelectric coefficients Primary tabs

Dear Biswajith,

Thank you very much for your reply and suggestion. I have posted my question on Engineering StackExchange site. Here is the link:

https://engineering.stackexchange.com/questions/21746/conversion-of-piez...

Best regards,

John

Re: Conversion of Piezoelectric coefficients Primary tabs

Mon, 2018-05-14 20:48

In reply to Conversion of Piezoelectric coefficients

IMechanica does not allow for equations and it's hard to answer your question without a few equations.

Post your question on the Engineering StackExchange site and I'll try to answer it.

-- Biswajit

hi all

Mon, 2018-05-14 10:25

In reply to fracture energy for hashin damage evolution using Abaqus

How to get the values of Damage evolution data in Abaqus for glass/epoxy or glass Fiber Reinforced Epoxy pipes? In which publications the values could be found? handbooks? articles? reference books? Where...?? or How to calculate the values of Damage evolution data?

Dear Xiaoyan,

Sun, 2018-05-13 15:15

In reply to Exciting and inspiring review!

Dear Xiaoyan,

Thank you for the discussion. The film thickness has a significant effect on the ice adhesion strength via t-1/2. Our current results demonstrate that the PDMS without sub-substructures has a thickness dependent ice adhesion strength when increasing film thickness to around 1 mm. Above that, thickness dependency disappears (He et al, Soft Matter, 2018, 10.1039/C8SM00820E). As for optimal dimension of sub-structures, we found the holes with diameter of 1 mm and height of 3.5 μm show lowest ice adhesion 5.7 kPa, of course combining with film thickness and weight ratio of PDMS, but without lubricant oil. Further investigation of sub-structure size is needed. 

Exciting and inspiring review!

Thu, 2018-05-10 05:15

In reply to Journal Club for May 2018: Icephobic Materials

Dear Jianying,

Very exciting and inspiring review! I am very interested in your fantastic work about the macro-crack initiator (MACI) approach. In this approach, you first coated the polydimethylsiloxane film and then introduced some specific sub-structures to the film. Such sub-structure can induce the formation of macroscopic cracks between ice and film due to deformation incapability. I have two following questions about details of sub-structures,

(1) Does the film thickness affect the ice adhesion?

(2) What is the featured size of sub-structures corresponding to the optimal anti-icing?

Pages

Recent comments

More comments

Syndicate

Subscribe to Syndicate