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There are 3408 articles in 1059 discussions. See the most recent and the best rated articles in ⚗ Polymers Forum

The most recent discussions

Universal pe,pp zipper profile


September 5, 2017, 8:29 am

We are manufacturers of Pe zipper profiles. Recently we are receiving enquiries about developing a universal zipper profile that can be used on both PE AND PP films. One of our competitors has alre... Read more »

Please Help... Polishing Polyethylene


May 17, 2017, 1:50 am

I know it sounds weird. I've got a polythene bodied RC car. I use elbow grease and plain white toothpaste. No, really, give it a go once you're down to the fine scratch stage. Read more »

Starlite flameproof plastic?


March 2, 2017, 8:43 am

Try this website I found, you don't have to read all of it but just scan it for key points and make sure to read the last paragraph Here's the link: What happened to `starlite', a material with se... Read more »

Fish scale pattern on catheter


February 8, 2017, 12:35 am

Hi all, I am having issues when reflowing a catheter using a 40D resin pebax segment. It is presenting a fish scale effect defect, these are little flashes in a regular pattern. Materials are PTFE in... Read more »

PMMA and Silicon oil


December 31, 2016, 6:25 pm

can any one please suggest PMMA and silicon oil common solvents benzene i know but i want other than benzene please suggest.. Read more »

How would you identify a polymer that coated ones entire body and hair?


December 21, 2015, 7:47 pm

This polymer becomes adhesive when barely warmed. It has also been ingested and inhaled.Also, how, over time would it have been applied to cover the entire body? Lastly, where would one go to find ... Read more »

How to increase mfi of a filler master batch


December 9, 2015, 5:26 pm

I would like to know how to increase mfi of a filler master batch compound Base resin Lldpe Read more »

Help for extrusion flow problem


September 7, 2015, 8:51 pm

Hello Im new into extrusion and need some help Om extruding pe with a self made extruder i have lots of hdpe and few ldpe my need is a soft flexible end product is there a way to make hdpe as soft a... Read more »

How to remove cement from plastic


July 11, 2015, 5:51 pm

Please how do I remove cement from plastic windows Read more »

Need help finding the right urethane


January 7, 2015, 8:30 pm

I'm trying to find a cast-able urethane that is: 1) FDA biocompatible (iec 10993) for skin contact 2) RoHS compliant (no mercury) 3) compatible with hydrogen peroxide (30%) solution. Could someo... Read more »

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The best rated discussions

Alq3 solvent

rating: 5

Does anyone know which solvents are able to dissolve Alq3 other than chloroform ? I'm looking for something that has a boiling point that is higher than chloroform so that i could get smoother films ... Read more »

polymers: calculate degree of crystallinity?

rating: 5

polymers: calculate degree of crystallinity? in [1[2,3]] an equation for quiscent crystallisation kinetics, calculating material derivative or relative degree of crystallisation is given: (1*) (D/Dt... Read more »

PP and LDPE blend

rating: 4.5

Hi, I would like to know if I blend PP and LDPE for extrusion. What is maxium percentage of LDPE can be used? and I heard that i need to add random copolymer PP in PP and LDPE blend to help the mis... Read more »

DSC and pvT data for PMMA and PA12

rating: 5

Hi I am conducting a transient thermal solution for plastic materials for which I need specific heat, conductivity and density data for these materials as functions of temperature (room temp to melt ... Read more »

How to remove cement from plastic

rating: 5

Please how do I remove cement from plastic windows Read more »

elastomultiester - elastoester filament

rating: 4.44

hello, are both elastomultiester and elastoester same thing ? Are they spun from blend or are they bicomponent ? I hear it's Teijin technology . Thanks in advance for any information Read more »

Please Help... Polishing Polyethylene

rating: 5

I know it sounds weird. I've got a polythene bodied RC car. I use elbow grease and plain white toothpaste. No, really, give it a go once you're down to the fine scratch stage. Read more »

Possible to shrink expanded O-rings

rating: 4.5

Hi, I have four tiny but very expensive O-rings used for dust scraping around pistons in motorcycle brake calipers. Thay have expanded due to an oil leakage and I hope that it's possible to shrink th... Read more »

PVC extrusion speed...

rating: 5

I just began my new job. We have a rigid PVC product ('W' shape). The engineering quote extrusion speed is 1500ft/hr, while our actual extrusion speed is 700ft/hr. This made we lost a lot of money... Read more »

Shock/impact absorbing materials?

rating: 5

I've seen demonstrations of both d3o (http://www.d3o.com/) and Sorbothane (http://www.sorbothane.com/). Unfortunately, d3o is not available to the general public in sheets, and sorbothane sheets are... Read more »

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