Pejman Heidarian

4 Questions 18 Answers 0 Followers

Questions related from Pejman Heidarian

Why after mixing of polylactic acid in the internal mixer its bulk colour was gray?

The condition was 170 degree of C, 5 min and 60 RPM Thanks.

14 August 2013 9,341 1 View

Can someone tell me why after evaporation of polylactic acid solvents, its structure will be an obliteration form with a white powder?

I want to produce a film from poly lactic acid with solvent casting method in the petri dishes. Its solvent is acetone and the chloroform ratio of this mixture to PLA is 20:1.

30 July 2013 2,225 9 View

I want to produce nanocomposites based on recycled poly (lactic acid) (rPLA).

Could you please tell me how I can determinate percent of D and L in this polymer exactly? According to my GPC result it is very poly disperse If I prepare micro particles from poly lactic acid as...

26 June 2013 4,308 2 View

How I can increase the dispersion and distribution of nanofibrillated cellulose in matrices of polylactic acid (a hydrophobic biopolymer)?

Nanofibrillated cellulose (NFC) is used as reinforcement in polymer matrices via its crystalline regions. But because of its very high density of OH groups, it is very hydrophilic biopolymer.

07 June 2013 8,632 7 View