Accession Number:

AD0603188

Title:

EXTRA FLEXIBLE COAXIAL CABLE,

Descriptive Note:

Corporate Author:

ARMY ELECTRONICS LABS FORT MONMOUTH N J

Personal Author(s):

Report Date:

1963-11-01

Pagination or Media Count:

35.0

Abstract:

New freeze-resistant materials were evaluated for radiofrequency coaxial cables. MIL-C-17 coaxial cables having Type A polyethylene dielectric cores and Type IIa noncontaminating nitrile rubber plasticized polyvinyl chloride jacketing were found too stiff at subzero temper atures vinyl jacketing cracked even above -40C. A blend of poly-alphaolefin with polyethylene was found to be electrically equivalent to polyethylene up to at least 10 Gc, and only 13 as stiff at -40 and -55C. Two thermoplastic polyester type urethanes and an ethylene copolymer jacketing material were found more flexible than vinyl down to -55C. The urethanes degrade after a long period of time at high humidity, but should be considerably better than polyolefins in abrasion resistance. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE