c*s
发帖数: 2145 | 1 【 以下文字转载自 Chemistry 讨论区,原文如下 】
发信人: ross2000 (ross), 信区: Chemistry
标 题: what kind of polymer has this properties
发信站: The unknown SPACE (Tue Aug 20 10:32:41 2002) WWW-POST
I need a polymer which has high viscosity but low elasticity. u know, it's
something like play-dough. I don't care the chemical structure of the polymer.
so, how can I get it? adding plasticizer to the polymer? I heard that using
plasticizer may increase elasticity. Is that true?
Thanks. |
w********h
发帖数: 12367 | 2 PDMS?
polymer.
【在 c*s 的大作中提到】
: 【 以下文字转载自 Chemistry 讨论区,原文如下 】
: 发信人: ross2000 (ross), 信区: Chemistry
: 标 题: what kind of polymer has this properties
: 发信站: The unknown SPACE (Tue Aug 20 10:32:41 2002) WWW-POST
: I need a polymer which has high viscosity but low elasticity. u know, it's
: something like play-dough. I don't care the chemical structure of the polymer.
: so, how can I get it? adding plasticizer to the polymer? I heard that using
: plasticizer may increase elasticity. Is that true?
: Thanks.
|
b**s
发帖数: 589 | 3 Hydrogel?
using
【在 w********h 的大作中提到】
: PDMS?
:
: polymer.
|
q***i
发帖数: 170 | 4 No.
I think some kind of hydrogel, polyacrylamide, is kind of
good elastic polymer.
【在 b**s 的大作中提到】
: Hydrogel?
:
: using
|
q***i
发帖数: 170 | 5 Poly dimethylsilicane? Maybe.
【在 w********h 的大作中提到】
: PDMS?
:
: polymer.
|
w********h
发帖数: 12367 | 6 yes..I think PDMS can satisfy his need.
it's
using
【在 q***i 的大作中提到】
: Poly dimethylsilicane? Maybe.
|
b**s
发帖数: 589 | 7 Faint, Why you guys all pick PDMS?
Viscosity and elasticity mostly depend on the crosslinking density of the
target polymers. IF PDMS gets crosslinked, it's a kind of rubber! If
hydrogel-like polymers are not crosslinked, they are gelatinous materials,
just image the agaragar.
【在 w********h 的大作中提到】
: yes..I think PDMS can satisfy his need.
:
: it's
: using
|
