The effect of reinforcement on the tear properties of flexible circuits
The tear properties of Kapton flexible circuitry are very poor. To better understand the properties of flex circuits and how to reinforce them, four different reinforcing materials were applied to a typical flex circuit and the tear properties were measured. Teflon film, nylon fabric, glass fabric and kevlar fabric were all laminated to a flex circuit with Pyralux (a Dupont tradename) adhesive. The fabrics were laminated in both a 0/90 and a +- 45 configuration. Five tests were performed, Graves, crescent, trousers, tensile and single edge notch (SEN). Of the four materials used for reinforcement, kevlar clearly showed the greatest overall improvement in tear properties. However, kevlar also provided the greatest processing difficulties. All of the reinforced circuits had an increase in thickness which resulted in an unacceptable loss of flexibility.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6603129
- Report Number(s):
- SAND-87-0296C; CONF-870674-3; ON: DE87007022
- Resource Relation:
- Conference: 1. international SAMPE electronics conference on electronic materials and processes, Santa Clara, CA, USA, 23 Jun 1987; Other Information: Microfiche only, copy does not permit paper copy reproduction
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ELECTRIC CABLES
FLEXIBILITY
REINFORCED MATERIALS
ELECTRONIC CIRCUITS
ARAMIDS
FIBERGLASS
NYLON
TEFLON
CABLES
CONDUCTOR DEVICES
ELECTRICAL EQUIPMENT
EQUIPMENT
FLUORINATED ALIPHATIC HYDROCARBONS
HALOGENATED ALIPHATIC HYDROCARBONS
MATERIALS
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYAMIDES
POLYETHYLENES
POLYMERS
POLYOLEFINS
POLYTETRAFLUOROETHYLENE
SYNTHETIC MATERIALS
TENSILE PROPERTIES
420800* - Engineering- Electronic Circuits & Devices- (-1989)