THE VAPOR PHASE GRAFTING OF VINYL CHLORIDE TO POLYETHYLENE BY $gamma$- IRRADIATION. III. SOME PROPERTIES OF GRAFT COPOLYMERS (in Japanese)
Graft copolymers were prepared by irradiating polyethylene films (low density) in an atmosphere of vinyl chloride with a Co/sup 60/-source. Samples of three sorts, grafted films (GP1) (percent graft: 0 to 64%), graft copolymers (GP2) prepared by milling GP1 with mixing rolls at 170 deg C for 16 min, and polyblends (BP) of polyethylene and polyvinyl chloride blended to give compositions covering the same range as GP1 under the same conditions as GP2, were examined. Tensile strength, elongation and temperature dependency of dynamic elastic modulus, mechanical dissipation factors, and delectric losses of polyethylene, polyvinyl chloride, GP1, GP2, and BP (film thickness, 6.1 mm) were measured. Thermal flow propenties of polyethylene, GP2, and BP were also examined. The data were compared and are discussed. The physical properties of polyethylene were reinforced by grafting, whereas the corresponding polyblend of polyethylene and polyvinyl chloride had lowered physical properties. The transition temperature of grafted polyvinyl chloride was lower than that of polyvinyl chloride whereas that of polyvinyl chloride in polyblend remained unaffected by blending. (P.C.H.)
- Research Organization:
- Nippon Telegraph and Telephone Public Corp.
- NSA Number:
- NSA-17-030193
- OSTI ID:
- 4680770
- Journal Information:
- Proc. Japan Conf. Radioisotopes, Journal Name: Proc. Japan Conf. Radioisotopes Vol. Vol: 5th, No. 4
- Country of Publication:
- Country unknown/Code not available
- Language:
- Japanese
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Related Subjects
COBALT 60
DENSITY
DIELECTRICS
ELASTICITY
FILMS
GAMMA RADIATION
GENERAL AND MISCELLANEOUS
GRAFT POLYMERS
HEAT TRANSFER
IRRADIATION
LOSSES
MEASURED VALUES
MECHANICAL PROPERTIES
MIXING
POLYETHYLENES
POLYMERIZATION
POLYMERS
POLYVINYLS
PREPARATION
SHEETS
TEMPERATURE
TENSILE PROPERTIES
THICKNESS
TRANSIENTS
TRANSITION TEMPERATURE
VAPORS
VINYL RADICALS