company tower banner

StarPCS™ SBMC-843

StarPCS™ SBMC-843 is a discontinuous carbon fiber reinforced molding compound containing carbon fiber, a Starfire proprietary polysiloxane resin, and refractory particulate. SBMC-843 contains a Polyramic® thermosetting resin which cures at temperatures between 200-310°C, and functions as a high temperature carbon fiber reinforced structure with a silicon oxycarbide ceramic matrix. Compression mold curing produces a green fiber reinforced polymer matrix composite (PMC) material. Further processing to 850°C minimum in inert environment results in an amorphous silicon oxycarbide ceramic matrix composite (CMC) to be used with different infiltration polymers or materials. Ideal infiltration polymers include Polyramic® SPR-212, SPR-212 based slurries (SL-227, SL-480), and other Starfire® polysiloxane products.

Brand: StarPCS (4 products)

Functions: Molding Compound

Polymer Name: Siloxane Polymer

Reinforcement Material: Carbon Fibers

Processing Methods: Compression Molding

End Uses: Airbrakes, Printed Wiring Boards, Rotors

Synonyms: Carbon Silicide, SiC, Silicon (IV) Carbide, Silicon Monocarbide

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

Chemical Family: Carbon Fiber,
Silicones,
Siloxanes
Chemical Name: Silicon Carbide
Polymer Name: Siloxane Polymer
Reinforcement Form: Chopped Fiber
Reinforcement Material: Carbon Fibers
Composite Materials Functions: Molding Compound
CAS No.: 409-21-2
EC No.: 206-991-8
Technologies: Composite Materials
Product Families: Composite Materials — Prepregs & Molding Compounds
Bulk Molding Compounds (BMC)

Features & Benefits

Labeling Claims

Materials Features

High Temperature Resistance

Product Highlights

Easily moldable using high pressure compression mold tooling.
Especially designed for high temperature and oxidizing environments.
Medium modulus chopped carbon fiber reinforced.
Performs well with other STARFIRE® resin systems.
High temperature stability.
No solvent removal necessary.
Tailorable thermal and mechanical properties.
Suitable for a variety of structural, thermal, suitable for low, medium temperature applications and friction uses.

Properties

Color

Physical Form

Bulk Molding Compound (BMC),

Odor

Odorless

Appearance

Gray-green, non-tacky, soft

Physical Properties


	Value	Units	Test Method / Conditions
Density (Molded)	1.52 - 1.62	g/cm³	-
Density (Received)	0.7 - 0.8	g/cm³	-
Bulk Factor	2:1	-	-

Flexural Properties


	Value	Units	Test Method / Conditions
Flexural Strength	124 -165	MPa	-
Flexural Modulus	48 - 74	GPa	-