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L-shape Glass/Epoxy laminate
Expanding variations of machining |
Glass/Epoxy laminate has such excellent properties, required for industrial applications, as Mechanical strength,Insulation property ,Dimensional stability,Heat resistance or Chemical resistance.Therefore Glass/Epoxy laminate has been much machined into mechanical parts in various industrial field.
We have newly developed Glass/Epoxy laminate with L-shape.We hope our L-shape lamimate would contribute to expand variations of machining and be used in many aspects of industrial applications. |
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▲Glass/Epoxy laminates with L-shape |
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| We hope L-shape laminate would expand variations of machining |
■Manufacuralbe range of dimensions |
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■Mechanical strength test |
| ■Test piece size：Thick.8mm×Width10mm Length 100×100mm |
■Test image
Load was applied until breaking of the test piece as follows.
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| ■Calculation method |
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| ■Test result |
| Item |
№ |
Width（㎜） |
Thickness（㎜） |
Breaking load
（N） |
Breaking load
（MPa） |
Average
（MPa） |
| EL-3230 |
1 |
11.27 |
8.37 |
1630 |
17.3 |
17.13 |
| 2 |
10.73 |
8.37 |
1520 |
16.9 |
| 3 |
10.93 |
8.36 |
1570 |
17.2 |
| EL-3350 |
1 |
11.58 |
8.51 |
1720 |
17.5 |
17.03 |
| 2 |
10.64 |
8.52 |
1530 |
16.9 |
| 3 |
11.46 |
8.52 |
1630 |
16.7 |
| EL-3351S |
1 |
11.20 |
8.30 |
1150 |
12.4 |
12.43 |
| 2 |
10.19 |
8.28 |
1030 |
12.2 |
| 3 |
10.38 |
8.24 |
1090 |
12.7 |
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■Line ups |
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▲EL-3230
Standard type |
▲EL-3350
Flame retardant type |
▲EL-3351S
Halogen free flame retardant type |
■General properties |
| Test items |
Unit |
EL-3230 |
EL-3350 |
EL-3351S |
| Withstand voltage vertical to layers |
ＭＶ/ｍ |
OK |
OK |
OK |
| Breakdown voltage vertical to layers |
ＭＶ/ｍ |
24 |
22 |
25 |
| Insulation resistance |
RT |
ＭΩ |
1.6×109 |
1.3×109 |
3×109 |
| After boiling treatment |
1.6×108 |
6.3×108 |
6×108 |
| Surface resistance |
RT |
ＭΩ |
2.8×1010 |
5.0×1010 |
5×1010 |
| After hygroscopic treatment |
5.0×109 |
2.5×1010 |
1×1010 |
| Volume resistivity |
RT |
ＭΩ/cm |
2.5×1010 |
2.8×1010 |
3×1010 |
| After hygroscopic treatment |
8.9×109 |
2.2×1010 |
2×1010 |
Dielectric constant
(１ＭＨｚ) |
RT |
― |
4.7 |
4.6 |
4.9 |
| After soak treatment |
4.8 |
4.6 |
4.9 |
Dissipation factor
(１ＭＨｚ) |
RT |
― |
0.019 |
0.016 |
0.008 |
| After soak treatment |
0.018 |
0.017 |
0.009 |
| Flexural strength vertical to layer |
Warp |
ＭＰa |
550 |
510 |
380 |
| Fill |
440 |
430 |
320 |
| Flexural strength of L-shape part |
ＭＰa |
17 |
17 |
12 |
| Compressive strngth |
ＭＰa |
490 |
470 |
500 |
| Tensile strength |
Warp |
ＭＰa |
380 |
370 |
240 |
| Fill |
300 |
280 |
200 |
| Izod impact strength |
Warp |
Ｊ/ｃｍ |
7.3 |
6.6 |
2.1 |
| Fill |
5.0 |
4.5 |
2.0 |
| Cleavage strength(8mm) |
kN |
8 |
8.8 |
6.8 |
| Rockwell hardness |
－ |
118 |
117 |
120 |
| Water absorption |
％ |
0.02 |
0.02 |
0.01 |
| Apperance after 2-hour heat treatment |
－ |
180℃
OK |
180℃
OK |
180℃
OK |
| Specific gravity |
－ |
1.94 |
1.99 |
2.07 |
| Acetone resistance |
－ |
OK |
OK |
OK |
| UL Flammability |
－ |
94HB |
V-0
equive. |
V-0
equive. |
| Glass transition temerature(TMA) |
℃ |
120 |
130 |
150 |
| Glass transition temerature(DMA) |
℃ |
130 |
140 |
170 |
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※Test standard：JIS K 6911
※Figures mentioned above are not guaranteed value ,but one of the test results |
