Mingyi Silicone(Anhui) Co., Ltd.
Standard grade high-strength fumed rubber for molding has high tear strength. They are applicable to products with special requirement for tear strength, such as: complicated bakeware and cell-phone cover, etc.
Typical Properties:
|
Category |
Item |
||||||
|
High-strength rubber |
MY D9330 |
MY D9340 |
MY D9350 |
MY D9360 |
MY D9370 |
MY D9380 |
|
|
Appearance |
Transparent |
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|
Vulcanization |
Hardness Shore A |
32±2 |
40±2 |
50±2 |
60±2 |
70±2 |
80±2 |
|
Tensile strength MPa≥ |
8.0 |
9.0 |
9.0 |
9.0 |
8.5 |
8.0 |
|
|
Elongation at break %≥ |
700 |
600 |
500 |
400 |
300 |
200 |
|
|
Breaking set %≤ |
8 |
8 |
8 |
8 |
10 |
8 |
|
|
Tear strength B KN/m≥ |
20 |
35 |
40 |
40 |
40 |
20 |
|
|
Post-curing |
Hardness Shore A |
33±2 |
45±2 |
55±2 |
65±2 |
75±2 |
83±2 |
|
Tensile strength MPa≥ |
7.0 |
8.0 |
8.5 |
8.5 |
8.0 |
7.5 |
|
|
Elongation at break %≥ |
650 |
550 |
450 |
350 |
250 |
150 |
|
|
Tear strength B KN/m≥ |
12 |
20 |
25 |
25 |
25 |
18 |
|
|
Specific density 25°C g/cm³ |
1.07±0.04 |
1.13±0.04 |
1.15±0.04 |
1.18±0.04 |
1.22±0.04 |
1.25±0.04 |
|
|
Compression set 180*22h %≤ |
55 |
45 |
50 |
45 |
45 |
40 |
|
|
Resilience %≥ |
55 |
50 |
50 |
48 |
40 |
35 |
|
|
Dielectric strength kV/mm ≥ |
20 |
20 |
20 |
20 |
20 |
20 |
|
|
Volume resistivity Ω.cm≥ |
1.0 x 10¹⁵ |
1.0 x 10¹⁵ |
1.0 x 10¹⁵ |
1.0 x 10¹⁵ |
1.0 x 10¹⁵ |
1.0 x 10¹⁵ |
|
Physical data in the above table is for reference only.
Vulcanization condition: 175℃× 5Min. Post-curing condition: 200℃ x 4h
Addition of curing agent: liquid 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane: 0.65%.
Advantage:
- Flexible processability
- High tear strength
- Good yellowing resistance
Applications:
- High-tear-strength molded products, such as complicated bakeware and cell-phone cover
Packing & Storage:
- 20kg/ carton lined with plastic bags or sheets.
- The products have a shelf life of 9 months from date of manufacture depending on the shore hardness if stored at room temperature in the originally sealed container.
