Gen 1 Hy-Bor® Prepreg Tape
Combining Specialty Materials' boron fiber with carbon prepreg to make Hy-Bor®, a high-performance material with exceptional properties that offers a great carbon fiber alternative. Our standard Hy-Bor® product utilizes Mitsubishi Rayon’s MR40 carbon fiber and Newport 301 (NCT301), a 250°F-cure epoxy resin, and our 4-mil diameter boron fiber. However, Hy-Bor® can be manufactured to incorporate any commercially available carbon prepreg. By altering the spacing of the boron fiber in the prepreg, performance properties and material costs can be tailored to meet the needs of a variety of demanding applications.
Hy-Bor® is a hybrid preform of boron fiber and commercially-available carbon prepreg
Boron can be added in full-count (208 fpi) or reduced counts (principally 104 fpi)
Reduced count Hy-Bor® (104fpi) can be produced with or without a top resin film, Hy-Bor® 104 and Hy-Bor® (104HP
Nominal cured ply thickness increases to 0.0065in. (208 fpi) or 0.0057in. (104 fpi) or 0.0048 (104HP)
Increased flexural and compression properties
Improved open-hole compression strength
Reduced carbon ply-count can be achieved in compression-critical designs
Properties are tailorable with varying boron fiber count and carbon prepreg configurations
Gen 1 Hy-Bor® Prepreg Tape Properties
| Property (Typical) | Units | Hy-Bor® 208 | Hy-Bor®104* | Hy-Bor®104HP** |
|---|---|---|---|---|
| Filaments per Inch of Tape Width | fpi | 208 | 104 | 104 |
| Carbon Fiber | MR-40 | MR-40 | MR-40 | |
| Resin System | NCT301 | NCT301 | NCT301 | |
| Tg | °F | 250 | 250 | 250 |
| Tensile Strength | MPa | 1,900 | 1,620 | 1600 |
| ksi | 275 | 235 | 232 | |
| Tensile Modulus | GPa | 240 | 207 | 186 |
| msi | 35 | 30 | 27 | |
| Flexural Strength | MPa | 2,410 | 2,280 | 1950 |
| ksi | 350 | 330 | 283 | |
| Flexural Modulus | GPa | 215 | 207 | 179 |
| msi | 31 | 30 | 26 | |
| Compression Strength | MPa | 2,760 | - | - |
| ksi | 400 | - | - | |
| Compression Modulus | GPa | 240 | 193 | - |
| msi | 35 | 28 | - | |
| Interlaminar Shear Strength | MPa | 103 | 103 | 94 |
| ksi | 15 | 15 | 14 | |
| Short Beam Shear Strength | MPa | 90 | - | - |
| ksi | 13 | - | - | |
| Cured Ply Thickness | mm | 0.165 | 0.125 | 0.123 |
| in.x10ˉ³ | 6.5 | 5 | 4.8 | |
| Total Areal Weight | g/m² | 330 | 240 | 217 |
| lbs/ft² | 0.067 | 0.049 | 0.045 | |
| Density | g/cc | 1.97 | 1.82 | 1.74 |
| lb/in³ | 0.071 | 0.065 | 0.063 |
*Formally known as Hy-Bor® 100
**Hy-Bor® 104HP does not have a top resin film
How To Tailor Composite Properties
Properties & product cost can be
tailored by:
•Changes in ply angles
•Ratio of boron to carbon fiber
•Type of carbon fiber (E, s, e )
•Resin system (Tg & toughness)
Benefits
● You can change the percentage of boron and basically tailor your properties to your end use without compromising your design
● You can get a higher reinforcement volume without degrading the interlaminar shear strength.
●This illustrates that you can tailor the boron content to your design needs.
Gen 1 Hy-Bor® versus Standard Preform
| Hybrid Data | Standard Data | |
|---|---|---|
| Boron Fiber Size | 4-mil | |
| Boron Fiber Count | 208 | |
| Carbon Fiber Type | MR40 | MR-40 |
| Resin System | NCT 301 | NCT 301 |
| Tensile Strength (ksi) | 265 | 295 |
| Tensile Modulus (msi) | 31 | 19 |
| Flex Strength (ksi) | 301 | 280 |
| Flex Modulus (msi) | 28.9 | 18 |
| Compr. Strength (ksi) | 360 | 180 |
| Compr. Modulus(msi) | 29 | 19 |