YANG Yu-ming, HE Tian-bai, YU Fu-sheng. THE FRACTURE BEHAVIOR OF POLY (PHENYLENE ETHER KETONE) AT ELEVATED TEMPERATURE FOR LONG TERMS -2. EFFECT OF PHYSICAL AGING. [J]. Acta Polymerica Sinica (2):149-155(1994)
DOI:
YANG Yu-ming, HE Tian-bai, YU Fu-sheng. THE FRACTURE BEHAVIOR OF POLY (PHENYLENE ETHER KETONE) AT ELEVATED TEMPERATURE FOR LONG TERMS -2. EFFECT OF PHYSICAL AGING. [J]. Acta Polymerica Sinica (2):149-155(1994)DOI:
THE FRACTURE BEHAVIOR OF POLY (PHENYLENE ETHER KETONE) AT ELEVATED TEMPERATURE FOR LONG TERMS -2. EFFECT OF PHYSICAL AGING
he effeCt of physical aging on the properties of poly(phenylene ether ketone)has been studied. With increasing the aging time at 200 ℃
the stress relaxation rate decreased pronouncedly
while the yield strength
the density
and the excess enthalpy loss increased markedly within the first ten hours. On further aging
only a slow asymptotic approach to equilibrium properties was observed. The time-dependence of the above physical properties was discussed. The occurrence of craze for aged samples during stress relaxation could be attributed to the densification of the glassy matrix in the course of physical aging.
SYNTHESIS AND PROPERIES OF POLY(AROMATIC ETHER KETONE KETONE ETHER KETONE KETONE)CONTAINING CARBOXYLIC ESTER SIDE GROUPS
SYNTHESIS AND PROPERTIES OF POLY(ARYL ETHER KETONE)S CONTAINING MULTI-CARBONYL IN THE MAIN CHAIN
SYNTHESIS AND CHARACTERIZATION OF A PHOSPHORUS-CONTAINING POLY(ETHER ETHER KETONE KETONE SULFONE)
SYNTHESIS AND PROPERTIES OF POLYETHERKETONE CONTAINING SULFIDE AND PHTHALAZINONE MOIETIES
SYNTHESIS AND CHARACTERIZATION OF POLY(ARYL ETHER KETONE) FROM 1-METHYL-4,5-BIS (CHLOROBENZOYL) CYCLOHEXENE AND 4-(3,5 DIMETHYL-4-HYDROXYPHENYL)-2,3-PHTHAZIN-1-ONE