Can one heat PLA above its melting point and use it as resin?

More Sathyaraj Sankar Lal's questions See All

What are the procedures for environment friendly and effective methods to prepare silicon QDs, Si nanotubes and silicene (2D materials)?

There are different nanostructures of silicon like nanotubes, QDs and silicene. I need to know what are the 'green' or other effective methods for preparing them..please share the procedures of...

10 January 2021 3,418 1 View

Understanding the true stress-strain curve of polymers as an Abaqus input?

The attached image is the measured tensile strength data (ISO standard) for commercially-available laminating epoxy (cured with hardener). Measured using a universal tensile strength machine in a...

14 December 2020 7,370 4 View

Total tests displayed by https://www.worldometers.info/coronavirus/#countries include rapid tests also or are solely RT-PCR Tests?

COVID-19 CORONAVIRUS PANDEMIC (https://www.worldometers.info/coronavirus/#countries) displays the total tests conducted countrywise everyday. Is this number based solely on RT-PCR tests or it...

30 October 2020 2,248 3 View

Hello everyone, good day! In the process of deproteinization of samples to obtain chitin, can I make use of a phenol as a deproteinizing agent?

I would like to know what other reagents can be used to obtain chitin by deproteinizing a sample. Commonly found on articles is the employment of NaOH concentrations as well as KOH. I would like...

16 October 2020 537 6 View

How can variables be clustered in few dimensions?

30 participants have given 50 adjectives (maximum 3 adjectives from each participants) for a phenomena. Now I want to to club/cluster these 50 different adjectives in fewer (say 8-10) adjectives....

24 September 2020 9,889 5 View

How applicable can a fertility model based on EC, pH and P be used in digital farming?

Role and function of using a developed model using three parameters - EC, pH, and P and showing its applicability.

30 August 2020 3,835 2 View

Which database should I use for systematic review?

If one one wants to conduct a systematic review in the field of psychology and specifically in cognitive functioning what will be the valid database, acceptable to reputed journal?

27 July 2020 6,812 4 View

In the paper mentioned can you help me to find the finite difference of equation no 19.?

In the paper "Magnetometer-Only Attitude Determination Using Novel Two-Step Kalman Filter Approach" in equation 19 do I need to complete quaternion multiplication first and then do simple...

15 June 2020 7,522 4 View

Is it better to upload a manuscript in the pre-print repository before published in the journal? Have you ever cited any pre-print articles??

Nowadays many researchers are uploading pre-print articles with designated DOI numbers and these are not peer-reviewed. During the peer-review process, the article could undergo major changes. If...

01 June 2020 4,006 90 View

Do predatory journals affect the standard and growth of science?

If the answer is yes, how to identify such type of publication houses? As these corrupted journals misuse the open access (OA) model by demanding a huge amount of money as article processing...

20 May 2020 5,764 12 View

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...

01 March 2021 8,544 1 View

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 View

What is recommended for solid domain in ANSYS FLUENT?

Should I mesh the solid domain ? or should I use wall thickness? or Shell conduction? for Heat Transfer between two fluids of a Heat Exchanger. what is recommended?

01 March 2021 9,785 3 View

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View

How can i resolve the "final solutuin is not converged" error in Comsol for my heat transfer simulation??

I have been trying to simulate heat transfer problem in Comsol 5.5 for long time but it always throw an error stating: "Failed to find a solution. Maximum number of Newton iterations...

28 February 2021 8,626 3 View

Exit velocity of natural gas from pressurized tank?

Hi Guys. I'm a mechanical engineer and have a bit trouble, would be very glad if you could help me with my questions. I have a pressurized tank which contains Natural Gas at 200 Bar and 293...

26 February 2021 6,253 3 View

Anyone that can help with Maxquant TMT16plex which is missing?

Hi I am very new to proteomics analysis. I have got raw files from core facility running thermofisher TMT 16plex 4 hours. I cannot find on maxquant the option TMT16Plex there is only up to 11...

25 February 2021 1,675 3 View

How to properly calculate the fluid solid heat transfer between polypropylene matrix and glass fiber in a porous medium?

I'm building a cfx model of thermoplastic pultrusion process on ansys and i have a doubt on how is the proper way to set this parameter in a porous medium

24 February 2021 1,915 1 View

How to properly calculate Interfacial area density in a porous domain?which are possible value for glass fiber?

I'm doing a cfx simulation of a multiphase flow in pultrusion and i set the Interfacial Area density in the heat exchange of a porous medium in this way IAD=Total fiber lateral surface of fiber...

23 February 2021 6,043 1 View

Model Volume fraction and magnetic field applications of nanofluids in ANSYS?

Hi I am working recently on a project where I have to study how the thermal properties or heat transfer enhancement of nanofluids as the volume fraction changes, or if a magnetic field is applied...

22 February 2021 961 2 View

Abdelkader BOUAZIZ

Dear Sathyaraj Sankar Lal, attached is a good review in which the three ways of PLA degradation are discussed. This polymer is processed above its melting temperature such as in extrusion. My Regards

Doufnoune RACHIDA Rachida

Hi;

Please see the above references.

K-M. Nampoothiri, N-R. Nair, R-P. John, An overview of the recent developments in polylactide (PLA) research, Bioresource Technology, 101, 2010, 8493-8501.

Lim, L.T., Auras, R., Rubino, M., 2008. Processing technologies for poly (lactic acid). Prog. Polym. Sci. 33, 820–852.

With my best regards