Jin Jie

4 Questions 5 Answers 0 Followers

Questions related from Jin Jie

Why does copper plating out in polyamide?

Adding copper acetate with KI in polyamide during polymerization, there is always some copper plating out and deposits on the surface of the polymerization device. There is a reduction reaction...

18 January 2025 7,262 3 View

Why high molecular weight Polyamide 6 has two melting point?

I have done a DSC test of Polyamide 6 homopolymer (RV=4.0), it shows two melting point of 212.8℃ and 220.5 ℃. Do these two melting point represents the melting of γ and α crystals? How to...

05 September 2023 2,609 0 View

Why does Nylon have higher crystallization temperature after processing?

Why does Nylon, like Polyamide 66, have higher crystallization temperature after processing? We have tested the DSC (cooling rate: 20℃/min) of the Neat Polyamide 66 chips (without additives), the...

26 May 2023 3,011 2 View

Why is there discoloration of the TiO2 slurry after wet milling?

The TiO2 slurry for delustering polyamide, turned yellow after wet milling, the longer the milling time, more yellow of the color. We have tried a different mill, but the discoloration also exist.

05 November 2022 10,073 5 View