. , .
, .
Si-C Si O, .
, ( 60 130) (200 420), . .
, , , .
, , , , .., , , .
, . .
, .. , . , (.1), % 200 250, : 272 362 .
1.
--2 | -100 | -1322/300 | -4 | -6 | |
, %, 1 200 | 0,7 | 0,8 | 0,4 | 1,7 | 0,8 |
, %, 1 250 | 20,1 | 8,5 | 7,0 | 4,8 | 1,0 |
, |
, . . 2 , 50
|
|
2.
, | 50, 2/ | - 50, 2/ | |
-20 | - 125 | 10,8 | |
-6 | - 110 | 24,6 | |
162-170 | - 100 | 38,7 | |
161-44 | - 108 |
, -, -, , .
.
, , , . , , , , , . :
R1 R2 R3 Si [O Si (R4) (R5)]n O Si R1 R2 R3,
: R1 = - CH3, - CH2CH3, - C6H5, -CH2CH2CF3
R2 = - CH3, - CH2CH3, - C6H5, -CH2CH2CF3
R3 = - CH3, - CH2CH3, - C6H5, -CH2CH2CF3
R4 = - CH3, - CH2CH3, - C6H5, -CH2CH2CF3, - C6H3Cl2
R5= - CH3, - CH2CH3, - C6H5, -CH2CH2CF3, - C6H3Cl2 ,
,
n = 1
, .
.
1. , -. :
(CH3)3 Si [O Si (CH3)2]n O Si (CH3)3
, -. - , .
, ѻ - -. , , . , .
- 130 65 .
, - , . , , , -, -, .
|
|
- ( 18 20 /).
- , , , .
-20, -100, -117, 100.
- . ( 10 ).
- . , , . , .
(-) , . , -,
3 -
3
-
, | ||||
-3 | - 110 | - 135 | ||
-4 | - 110 | - 130 | ||
-5 | - 96 | - 125 | ||
7 | - 100 | - 127 |
, , ( 150, 200) ( 100) , , . , - , .
, . 132-07,-08, -19, -21, -21, , -1, -3.
, . - . -4 .
4.
-4,
, 2/ | , | ||
20 | -50 | ||
-4 (100%) | -110 | ||
-14 (100%) | 14 ( 100) | - | -30 |
(100%) | 47,2 | 22073 ( -40) | -50 |
-4 (85%) + -14 (15%) | <-70 | ||
-4 (75%) + -14 (25%) | 63,2 | <-70 | |
-4 (65%) + -14 (35%) | 70,8 | <-70 | |
-4 (75%) + (25%) | 31,1 | <-70 | |
-4 (60%) + (40%) | <-65 |
|
|
, - .
, . . , .
- . - .
2. (-) :
(R)3 Si [O Si (CH3)(C6H5)]n O Si (R)3
:
(R)3 Si = (CH3)3Si -, (CH3)2(C6H5)Si -, (CH3)(C6H5)2Si -, (C6H5)3Si -
-, - -.
, Si-O Si-C, , . . , , .
, . , : ; ; .
, , , . -:
- -2,5, -1, -2, -13 . 133,322 13,332
- -5, -6, -5,6 , .
- 133-79, 133-158, 5 3 , .
, , , , .
- , Dow Corning(), Wacker (), Shin Etsu Toshiba (). -. - , , .
|
|
, -, . 90- , , -, , (.5).
, , -, 90- . . , Dow Corning () - DC-550, DC-510/50, /100, /500, /1000, DC-710, , 75 232. . 5 Dow Corning .
5.
Dow Corning ()
.. | Dow Corning | ||
DC-550 | 5 | 200 | |
DC-710 | -5 | , , , . , . . 260 | |
DC-510/50 | -6 | -75 232 | |
DC-510/1000 | -6 | -75 232 | |
DC-701 | 2/5 | 110-8 .. | |
DC-702 | -13 | 110-9 .. | |
DC-705 | -1 | 110-12 .. |
- , ( ) (γ- ).
, , . , . , , : , , .
() , , .
:
) , - - ( 162-70, 162-170, 162-389 ) - : , ( 90), , . . , 162-170 , , .
) , γ- . ( ). - 20 1200 20. - , , , , , 300
) , , γ- ( ) 250 , , . , , , . , γ- . , , γ- . 169-36, , , , (, ) .
|
|
, , , β-, β-, , . , , , , - .
, , , .
, ( 0,42 20, 1450 /, 196 , 60 , -), ( 120).
, 20 . , , Dow Corning (), 50 .
, , ( , , , ) .
, , , , , , , .