Ahmed Naser

6 Questions 9 Answers 0 Followers

Questions related from Ahmed Naser

How to Model FDM on SimaPro?

Hello everyone, I am trying to model the process stage (Gate to Gate) of FDM on SimaPro. I understand that I need to decide upon my inputs and outputs as well as system boundary before doing...

14 April 2022 1,956 1 View

How to get the required rheological and PVT data for bio plastics like PHAs?

Hello, I am dealing with PHAs for injection molding applications. I am trying to simulate the process using injection molding simulation softwares like Moldex3D. Obviously, you need to add the...

04 March 2021 3,252 1 View

How to identify what type of fillers are in a polymer?

Hello everyone, I have some PHAs blended with fillers and nucleating agents, yet I don't know what kind of fillers or nucleating agents. The producer has shut down and there's no way to get in...

25 February 2021 1,945 8 View

How to measure the hardness for PLA & PHAs polymers?

Hello, I am a bit confused on whether to follow ASTM D785 (Standard Test Method for Rockwell Hardness of Plastics and Electrical Insulating Materials) or ASTM D2240 (Standard Test Method for...

22 January 2021 7,660 4 View

How to calculate the Flexural modulus for plastics?

Hello everyone, I have the attached Excel file containing the results and equations required to calculate the modulus of flexural for injection molded plastics (in this case PHAs) as per ASTM...

17 December 2020 945 12 View

How to properly purge an injection molding machine?

Hello, We're trying to purge a mini injection molding machine after not using it for a while now. The resin inside is PHA and can be some PLA left over as well. We've tried using a purging...

09 October 2020 4,862 5 View