⚗ Polymers Forum

TPE by melt compounding?

Where can I find basic formulations for polymer mixing by melt compounding? I tried google, but I did not succeed, maybe...

7 comments posted 22yrs

posted by Bernd.Schmitt.News

7 comments posted 22yrs posted by Bernd.Schmitt.News

Re: EVOH oxygen barrier

Hi, Dave, As I understand it, the packing of the polymer chains in EVOH is such that there are no spaces through which...

3 comments posted 22yrs

posted by kingsoflympne

3 comments posted 22yrs posted by kingsoflympne

Gamma radiation of PTFE

I know that PTFE does not withstand gamma radiation. There are a lot of sources or handbooks that mention that. However...

2 comments posted 23yrs

posted by nileshron

2 comments posted 23yrs posted by nileshron

less toxic alternative to dissolve PMMA

hi! Which of the solvents (THF, chloroform, MEK, acetone) that are use to dissolve PMMA is less toxic? or is there any...

3 comments posted 23yrs

posted by eng003

3 comments posted 23yrs posted by eng003

pKa of a polymer

I am new to polymers, and i wonder if polymers have pKa, of if there is a way to estimate it. If so, I am interested in...

1 comments posted 23yrs

posted by mace

1 comments posted 23yrs posted by mace

solvents to dissolve PMMA or to form a paste

hi! I'm working on a project to find a suitable solvent to dissolve PMMA or to form a paste or a suspension which the m...

0 comments posted 23yrs

posted by eng003

0 comments posted 23yrs posted by eng003

Fluoroélastomères

Bonjour Comment puis je me fabriquer simplement un bouche -pore pour un revêtement en fluoroélastomères? La solubilisat...

1 comments posted 23yrs

posted by <jeremy.sanchez_beltran

1 comments posted 23yrs posted by <jeremy.sanchez_beltran

pKa of a PEI solution

Polymers are not my field, and I have some questions that may sound stupid: - Do polymers have pKa? - How could I know...

1 comments posted 23yrs

posted by mace

1 comments posted 23yrs posted by mace

Re: Plastic Leafspring?

Dave, Which grade of DELRIN did you try? How did the DELRIN fail: tension, flex fatigue, creep, chemical degradation, h...

3 comments posted 23yrs

posted by Ernieman"NoSpam"

3 comments posted 23yrs posted by Ernieman"NoSpam"

conductive additive for blending with polypropylene

I need to blend PP with an additive to make the blend reactive to microwaves or high frequency. I know it is possible wi...

3 comments posted 23yrs

posted by fnelias

3 comments posted 23yrs posted by fnelias

Re: Chill roll cleaning systems

> I am looking for a system that will continuously clean a mirror finish > chill roll for a multi-layer polymer cast fi...

3 comments posted 23yrs

posted by jspevacek

3 comments posted 23yrs posted by jspevacek

poly consultant database?

Any suggestions on sites to search for finding contract polymer engineering consultants/chemists? In particular, looking...

0 comments posted 23yrs

posted by arctos

0 comments posted 23yrs posted by arctos

LPEI and crystaline H3PO4

Can anyone think of a non-aqueous cosolvent for linear polyethyleneimine and crystalline H3PO4? Thanks Morgen

0 comments posted 23yrs

posted by morgenb

0 comments posted 23yrs posted by morgenb

Reaction time

Hello, assuming a simple solution polymerisation (batch): how can I estimate the appropiate reaction time? If I try to...

2 comments posted 23yrs

posted by acp29

2 comments posted 23yrs posted by acp29

Biodegradable polymers and natural fiber

Hai, I'm a 4th year student in Materials Engineering and doing thesis on biodegradable polymers. What i would like to k...

1 comments posted 23yrs

posted by buttercup_1201

1 comments posted 23yrs posted by buttercup_1201