b*****h
发帖数: 29 | 1 our group want to use polymer or sol-gel mixature make some stamp so transfer
from male mask to female.
naomally guys just use PDMS but this time it must be stiff and not brittle.
does anyone have any idea?
if you really done this before or see some successful cases, please cited.
guess is also welcomed!
by the way, has anyone do sol-gel while no cracks before? |
b**s
发帖数: 589 | 2 Try polyurethane, it can be 绍氏 〉85
prepolymer + MOCA
transfer
【在 b*****h 的大作中提到】
: our group want to use polymer or sol-gel mixature make some stamp so transfer
: from male mask to female.
: naomally guys just use PDMS but this time it must be stiff and not brittle.
: does anyone have any idea?
: if you really done this before or see some successful cases, please cited.
: guess is also welcomed!
: by the way, has anyone do sol-gel while no cracks before?
|
b**s
发帖数: 589 | 3 You can buy it from walmart, in the coating category
brittle.
【在 b**s 的大作中提到】
: Try polyurethane, it can be 绍氏 〉85
: prepolymer + MOCA
:
: transfer
|
c*******n
发帖数: 1648 | 4 I am not familar with your project, But I know that sol-gel system will shrink
a lot after curing, and it will create a lot of internal stress that induce
cracks you've seen. How to balance internal stress is the problem in your
system.
transfer
【在 b*****h 的大作中提到】
: our group want to use polymer or sol-gel mixature make some stamp so transfer
: from male mask to female.
: naomally guys just use PDMS but this time it must be stiff and not brittle.
: does anyone have any idea?
: if you really done this before or see some successful cases, please cited.
: guess is also welcomed!
: by the way, has anyone do sol-gel while no cracks before?
|
c*******n
发帖数: 1648 | 5 Hehe, I bet bunnyjh will have hard time for mold release by using
coating grade PU:)
cited.
【在 b**s 的大作中提到】
: You can buy it from walmart, in the coating category
:
: brittle.
|
c*******n
发帖数: 1648 | 6 First can you teach us why PDMS was the most used material for
microimprinting?
What's the criteria for this kind of process? Then we may come up with some
idea together by knowing this criteria for your process.
transfer
【在 b*****h 的大作中提到】
: our group want to use polymer or sol-gel mixature make some stamp so transfer
: from male mask to female.
: naomally guys just use PDMS but this time it must be stiff and not brittle.
: does anyone have any idea?
: if you really done this before or see some successful cases, please cited.
: guess is also welcomed!
: by the way, has anyone do sol-gel while no cracks before?
|
w********h
发帖数: 12367 | 7 check Whitesides' papers.
PDMS is his model polymer.
brittle.
【在 c*******n 的大作中提到】
: First can you teach us why PDMS was the most used material for
: microimprinting?
: What's the criteria for this kind of process? Then we may come up with some
: idea together by knowing this criteria for your process.
:
: transfer
|
c*******n
发帖数: 1648 | 8 Hehe, because it's not my project, and I am too lazy to read other papers. I
come here because I want to learn from you guys:) Furthermore reading paper
alone can not be compared to the brainstorm here, haha.
some
cited.
【在 w********h 的大作中提到】
: check Whitesides' papers.
: PDMS is his model polymer.
:
: brittle.
|
