Melt viscosity reduction of poly(ethylene terephthalate) by solvent impregnation

被引：15

作者：

Tate, S ^{[1
]}

Chiba, S ^{[1
]}

Tani, K ^{[1
]}

机构：

[1] TOYOBO CO LTD,TOYOBO RES INST,OTSU,SHIGA 52002,JAPAN

来源：

POLYMER | 1996年 / 37卷 / 19期

关键词：

poly(ethylene terephthalate); solvent; melt viscosity;

D O I：

10.1016/0032-3861(96)00282-0

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The melt viscosity of poly(ethylene terephthalate) (PET) was decreased by the impregnation of an aromatic solvent, such as 1-methyl naphthalene or diphenyl ether, Porous PET granules for impregnation of the solvent were prepared by swollen-state polymerization in hydrogenated terphenyl as the swelling solvent. The PET granules could take up 20% of the solvent by heating with the solvent. On the other hand, PET granules polymerized in the solid-state scarcely absorbed the solvent, except for 1-methyl naphthalene. The apparent melt viscosity of PET decreased to 1/5 by the impregnation of 1-methyl naphthalene (20%). The solvent-containing PET granules allowed extrusion at lower temperature (270 degrees C), which led to a reduction of the degradation of PET and produced high tensile strength (2 GPa) and high modulus (30 GPa) fibres. Copyright (C) 1996 Elsevier Science Ltd.

引用

页码：4421 / 4424

页数：4

共 10 条

[1] PRODUCTION OF HIGH-MODULUS POLY(ETHYLENE-TEREPHTHALATE) RODS BY A MICROWAVE HEAT-DRAWING TECHNIQUE [J].

AMANO, M ;

NAKAGAWA, K .

POLYMER, 1986, 27 (10) :1559-1562

[2] EFFECTS OF SAMPLE GEOMETRY AND DRAW CONDITIONS ON THE MECHANICAL-PROPERTIES OF DRAWN POLY(ETHYLENE-TEREPHTHALATE) [J].

ITO, M ;

TAKAHASHI, K ;

KANAMOTO, T .

POLYMER, 1990, 31 (01) :58-63

[3]

ITO M, 1992, SEN-I GAKKAISHI, V48, P569

[4]

ITO M, 1994, SENIGAKKAISHI, V50, P591

[5] MECHANICAL-PROPERTIES AND SUPERSTRUCTURE OF HIGH-MODULUS AND HIGH-STRENGTH PET FIBER PREPARED BY ZONE ANNEALING [J].

KUNUGI, T ;

SUZUKI, A ;

HASHIMOTO, M .

JOURNAL OF APPLIED POLYMER SCIENCE, 1981, 26 (06) :1951-1960

[6]

ONOGI S, 1967, J POLYM SCI A, V12, P899

[7] Thermal degradation and melt viscosity of ultra-high-molecular-weight poly(ethylene terephthalate) [J].

Tate, S ;

Narusawa, H .

POLYMER, 1996, 37 (09) :1583-1587

[8] Swollen-state polymerization of poly(ethylene terephthalate) in fibre form [J].

Tate, S ;

Watanabe, Y .

POLYMER, 1995, 36 (26) :4991-4995

[9] SYNTHESIS OF ULTRA-HIGH-MOLECULAR-WEIGHT POLY(ETHYLENE-TEREPHTHALATE) BY SWOLLEN-STATE POLYMERIZATION [J].

TATE, S ;

WATANABE, Y ;

CHIBA, A .

POLYMER, 1993, 34 (23) :4974-4977

[10]

TATE S, 1995, POLYMER, V36, P1479

← 1 →