產(chǎn)品詳細首頁 > 硅橡膠 > 耐高溫UL758固/液體硅膠 > 瓦克硅橡膠/硅膠Wacker R750系列
- 名稱：瓦克硅橡膠/硅膠Wacker R750系列
- 型號：R750系列
- 規(guī)格：20公斤/箱
- 說明：R750系列硅橡膠/硅膠瓦克耐高溫、耐溫達315C高強度高拉伸撕拉，高透明。
詳細說明
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ELASTOSIL® R 750
HCR silicone rubber
Characteristics
Vulcanizates of the ELASTOSIL R 750 silicone rubber series possess particularly good resistance to hot air.
Storage
ELASTOSIL® R 750 should be stored between 0 °C and 30 °C in the tightly closed original container. The 'Best use before end' date of each batch appears on the product label.
Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.
Application
ELASTOSIL® R 750 is optimized for applications at high temperatures and can be used for extrusion and moulding applications.
ELASTOSIL R 750 can withstand temperatures of 300 °C for at least seven days.
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Product data |
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Property |
Test method |
Unit |
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ELASTOSIL® R 750 |
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Hardness Shore A |
DIN 53 505 |
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40 |
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50 |
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60 |
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Crosslinker |
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E |
C1 |
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E |
C1 |
E |
C1 |
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Appearance |
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transparent |
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transparent |
transparent | |||
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Density |
DIN EN ISO 1183-1 A |
[g/cm³] |
1.12 |
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1.13 |
1.17 | |||
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Tensile strength |
DIN 53 504 S 1 |
[N/mm²] |
11 |
11 |
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11 |
11 |
9 |
9 |
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Elongation at break |
DIN 53 504 S 1 |
[%] |
650 |
800 |
550 |
650 |
500 |
600 | |
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Tear resistance |
ASTM D 624 B |
[N/mm] |
20 |
27 |
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21 |
24 |
22 |
25 |
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Rebound resilience |
DIN 53 512 |
[%] |
47 |
42 |
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46 |
45 |
42 |
41 |
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Compression set |
DIN ISO 815-B |
[%] |
27 |
19 |
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22 |
11 |
27 |
25 |
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(22 h / 175 °C) |
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Hot-air ageing at 300 °C |
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Property |
Unit |
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ELASTOSIL ® R 750 |
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Hardness Shore A |
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40 |
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50 |
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60 |
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Curing agent |
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E |
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C1 |
E |
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C1 |
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E |
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C1 | |
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Duration |
[days] |
3 |
7 |
3 |
7 |
3 |
7 |
3 |
7 |
3 |
7 |
3 |
7 | |
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?6?2 Hardness, Shore A |
+14 |
+24 |
+16 |
+27 |
+14 |
+24 |
+13 |
+23 |
+13 |
+20 |
+17 |
+23 | ||
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Tensile strength |
[N/mm] |
6.2 |
5.9 |
5.8 |
5.6 |
5.8 |
6.1 |
5.6 |
5.4 |
5.8 |
6.0 |
5.9 |
6.3 | |
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Elongation at break |
[%] |
370 |
260 |
370 |
230 |
280 |
200 |
270 |
170 |
200 |
150 |
180 |
140 | |
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?6?2 Weight |
[%] |
-7.2 |
-12.2 |
-8.3 |
-13.5 |
-7.7 |
-12.6 |
-8.3 |
-13.5 |
-5.9 |
-10.2 |
-6.2 |
-10.4 | |
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Circulating-air oven with adequate supply of fresh air. |
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These figures are intended as a guide and should not be used in preparing specifications. |
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Cure conditions |
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Curing agent |
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[%] |
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Cure |
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Post-cure |
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E |
50 % paste of bis-(2,4-dichlorbenzoyl)- |
1.5 |
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10 min / 135 °C |
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4 h / 200 °C |
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peroxide in silicone fluid |
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C1 |
Dicumyl peroxide (98 %) |
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0.7 |
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15 min / 165 °C |
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4 h / 200 °C |
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C6 |
45 % paste of 2,5-bis-(t-butylperoxy)-2,5- |
1.2 |
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15 min / 165 °C |
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4 h / 200 °C |
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dimethyl hexane in silicone rubber |
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Curing Agent C6 yields similar values to those obtained with C1.
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