Quantum Composites QC-8740

About
QC-8740 is a vinyl ester based sheet molding compound (SMC) designed for compression molding of components requiring toughness and flame retardance. It meets the requirements for a number of commercial and military specifications.&&

Product Description
Generic	乙烯基酯
Material Status	Commercial: Active
Features	Good flexibility,Flame Characteristics
Availabilitys	North America

Technical Data
PHYSICAL	Nominal value	Unit	Test method
Density	1.90	g/cm³	ASTM D792
Shrinkage rate
MD	0.10	%	ASTM D955
Water absorption rate
24hr	0.30	%	ASTM D570

MECHANICAL	Nominal value	Unit	Test method
tensile strength	214	MPa	ASTM D638
Bending modulus	13800	MPa	ASTM D790
bending strength	379	MPa	ASTM D790
compressive strength	310	MPa	ASTM D695

IMPACT	Nominal value	Unit	Test method
Impact strength of cantilever beam notch	1600	J/m	ASTM D256

THERMAL	Nominal value	Unit	Test method
Hot deformation temperature
1.8 MPa, unannealed	149	℃	ASTM D648
Storage period
24℃	8.7	wk
stripping time
149℃	2.0 to 4.0	min

Process Conditions
injection	Nominal value	Unit	Test method
Mold temperature	132 to 149	°C
Injection pressure	2.07 to 6.89	MPa

Notes
1. Typical properties: these are not to be construed as specifications.
【 Disclaimer 】 Guangzhou Soliao Information Technology Co., Ltd. reserves all rights. The information in this data table was obtained from the manufacturer of the material on soliao.com. Soliao.com makes every effort to ensure the accuracy of this data. However, the search company does not assume any responsibility for the uncertainty and consequences caused to users by these data values and suggestions, and strongly recommends verifying the data values with the material supplier before the final selection of materials.

Notes

1. Typical properties: these are not to be construed as specifications.

【 Disclaimer 】
Guangzhou Soliao Information Technology Co., Ltd. reserves all rights. The information in this data table was obtained from the manufacturer of the material on soliao.com. Soliao.com makes every effort to ensure the accuracy of this data. However, the search company does not assume any responsibility for the uncertainty and consequences caused to users by these data values and suggestions, and strongly recommends verifying the data values with the material supplier before the final selection of materials.