Evangelina Tessia pricilla

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Questions related from Evangelina Tessia pricilla

How to solve early solidification which causes hanging web in electrospinning?

I want to make electrospinning scaffold with PLA/PCL/PMMA/Collagen with these methods: 1. I use chloroform:methanol 3:1 to dissolve PLA (mW 80.000, 2 wt%), PCL (mW 70.000, 3 wt%), and PMMA mW...

02 November 2019 6,177 5 View

How can I solve the needle clogging problem during electrospinning with PLA/PCL/PMMA/Collagen?

For my thesis research, I dissolved PLA and PCL in chloroform: methanol (3:1), PMMA (350.000 MW, 13 wt%) in acetone, and collagen in acetate acid--and then, I mixed them together. The problem is...

07 October 2019 8,404 4 View

How long does it take to mix PMMA with PLA/PCL?

For my thesis research, first, I mix PLA (solvent: chloroform/methanol) and PCL (solvent: chloroform/methanol) for 2-3 hours. After that, I want to mix PLA/PCL with PMMA (mW 350.000 solvent: ethyl...

03 October 2019 7,272 1 View

How long does it take to blend PLA solution with PCL solution?

Greetings! I have a research where I dissolve PLA in chloroform:methanol (3:1) for 3 hours and also PCL in chloroform:methanol (3:1) for 3 hours too. After that, I have to blend those two polimers...

18 September 2019 3,491 3 View

How long does it take to dissolve PMMA with PLA/PCL?

Greetings! I have a research about electrospun membrane synthesis where I dissolve PLA pellets in chloroform:methanol (3:1) for 3 hours and also PCL pellets in chloroform:methanol (3:1) for 3...

18 September 2019 5,318 2 View

Why is the absorption peak of collagen doesnt appear on PLA/PCL/PMMA/Collagen?

Greetings! I have made an electrospun membrane with PLA (~ 65.000 mW) maximum transmittance of spectra 60 %, PCL (80.000 mW) maximum transmittance of spectra 90%, PMMA (350.000 mW) with maximum...

01 January 1970 8,690 1 View