Best Rated threads in ⚗ Polymers Forumshow all threads

Subject Author Posted Replies
 
How to increase mfi of a filler master batch
I would like to know how to increase mfi of a filler master batch compound Base resin Lldpe
1
1
 
How to remove cement from plastic
Please how do I remove cement from plastic windows
 
inner diameter tube polyurethane coating
hello! i would like to get some advice on what type of resin should i choose. i want to make a resin coating on the inner diameter of a tube. The way the coating will be made is the following....
 
rubber reclaiming agent
I would like to introduce our self as the manufacturer & exporter of Rubber Reclaiming Agent, Chemical name: DI-XYLENE DI-SULPHIDE, it used as a catalyst in the process of making reclaim rubber. Any...
 
HDPE & LLDPE or mLDPE blend
Is possible to blend a HDPE (0.95, 1 MI 5kg) used in blown film, with LLDPE or mLDPE to reduce the density? Has anyone info about this? Regards
1
1
 
PROTECTIVE COATINGS Book by Clive H. Hare on Eaby!
Hi, I have just listed on ebay the text book 'PROTECTIVE COATINGS - Fundamentals of Chemistry & Composition' By Clive H Hare. The book is 514 pages and an essential read for those studying or working...
 
How to dissolve coloured transparent ABS Lego bricks?
I'm looking for a solution (no pun intended) to my problem and am hoping someone here can help. Unlike regular (solid colour) ABS bricks, coloured transparent ABS Lego bricks do not dissolve in either...
15
15
 
polymers: calculate degree of crystallinity?
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*)...
5
5
 
Re: black paint - light absorption?
Hi all, I am, too, looking for a black paint to minimize scattered light, but the paint should NOT fluoresce when exposed to UV ~254 nm max. Also It should be vacuum compatible (~10^-7 torr). I have...
12
12
 
Kraton G-1650 to make sticky gel
Hi.. I need some advise about Kraton G-1650. I had posted about how to make sticky gel. Some advised mention to use Kraton G-1650 added up with miniral oil. I will get the sticky gel. I'm follow the...
1
1
 
softening nylon 6/6
I need a mopst efficient way to soften nylon 6/6 without changing any of its properties. These are small dowels with .0.018" deep grooves around them and they are supposed to lock into brass tubing...
7
7
 
differences between polycarbonate (lexan) and PETG
I am apprentice starting in vacuum forming and would like to know the similarities and differences in these two materials in sheet format. I a starting to work with thicknesses of 0.020" to 0.060". I...
3
3
 
thermoplastic polyurethane with high melt flow index
I'm looking for TP=DC with a high MVI > 80 cc/10 min (@160 =B0C/2.16 kg). If possible the polymer must also have some elongation. And must have some restance to hydrolysis
3
3
 
Please Help... Polishing Polyethylene
I recommend buffing compound for a finer polishing. Toothpaste is a heavy grit.
1
1
 
Bubbles forming during pebax reflow
Hello All, I have a catheter process creating bubbles in the catheter walls. The process is essentially pebax onto pebax reflow (fusing). There is a SS braid in between the pebax materials and FEP is...
4
4
 
How to cure diluted PDMS with solvent
Hi, I am doing some work with adding on a thin layer of PDMS that is diluted with a solvent (DCM, THF, 1,4-Dioxane) on a silicon wafer by spin-coating or drop coating. My problem is that I have...
 
PP and LDPE blend
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...
5
5
 
Restoring Melmac dinnerware?
At our cabin in CO we have a set of Brookpark Modern Design pink and black Melmac dinnerware. I've been replacing missing pieces, but some of the replacements are quite worn - fine scratching being...
3
3
 
What is Melt tension(strength) in PE, PP
Hello, everyone I don't know the meaning of melt tension(strength) in polymer, especially PE, PP. I would like to know what melt tension is and why it is measured in PE, PP processing. please teach me...
6
6
 
What's PVDA - polyvinylidene acetate?
Have you ever heard about PVDA - polyvinylidene acetate? I have searched in the web and in some text book but I can't get more than the molecular structure. Can anyone give some advice what kind of...
2
2