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Thermoplastic cellulose-aliphatic aromatic copolyester blend fiber and preparation method thereof

An aliphatic aromatic and cellulose ester technology, applied in the direction of cellulose/protein conjugated artificial filaments, conjugated synthetic polymer artificial filaments, etc., can solve the problems of low melt viscosity and high melt viscosity of blends question

Active Publication Date: 2018-03-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] One of the technical problems solved by the present invention is the problem that the melt viscosity of thermoplastic cellulose and aliphatic aromatic copolyester blends in the prior art is too high to be applied to blend fibers requiring low melt viscosity. A thermoplastic cellulose and aliphatic aromatic copolyester blend fiber, the thermoplastic cellulose and aliphatic aromatic copolyester blend has special rheological properties, which can effectively adjust the viscosity of the blend to "meaning" Unexpectedly, it drops below the theoretical viscosity of the blending addition of thermoplastic cellulose and aliphatic aromatic copolyester starting materials; so that the blend has the processability to achieve fiber preparation at a lower temperature, making The resulting fibers are superior to prior art comparable blend fibers and, due to the low melt viscosity of the blend, allow for more energy efficient processing

Method used

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  • Thermoplastic cellulose-aliphatic aromatic copolyester blend fiber and preparation method thereof
  • Thermoplastic cellulose-aliphatic aromatic copolyester blend fiber and preparation method thereof
  • Thermoplastic cellulose-aliphatic aromatic copolyester blend fiber and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0100] F BX 7011 PBAT and Eastman TM CAB-531-1 PolyLab HAAKE mentioned above TM Rheomex OS PTW16 co-rotating twin-screw extruder for melt blending extrusion pelletization. In the first section of the extruder, a calibrated volumetric particle feeder is used Feeding of F BX 7011 PBAT particles, the speed is: 1680g / hr, and the volumetric powder feeder after calibration is used in Eastman TM The feeding rate of CAB-531-1 powder is: 420g / hr. The temperatures of sections 2-11 of the extruder are: 140°C, 150°C, 160°C, 160°C, 160°C, 160°C, 160°C, 160°C, 160°C and 160°C, the screw speed is set at 200rpm, the torque At 50-60%. The extruder is equipped with a circular die with a diameter of 3 mm. After the spline is extruded from the die and cooled in a water bath, it is cut into cylindrical particles of about 3 mm with a pelletizer. The particles were collected, pumped in a vacuum oven at 60°C for 4 hours, and packaged for use. The melt index of the particles at 190° C. unde...

Embodiment 2

[0102] F BX 7011 PBAT and Eastman TM CAB-531-1 PolyLab HAAKE mentioned above TM Rheomex OS PTW16 co-rotating twin-screw extruder for melt blending extrusion pelletization. In the first section of the extruder, a calibrated volumetric particle feeder is used Feeding of F BX 7011 PBAT particles, the speed is: 1365g / hr, and the volumetric powder feeder after calibration is used in Eastman TM The feeding rate of CAB-531-1 powder is: 735g / hr. The temperatures of sections 2-11 of the extruder are: 140°C, 150°C, 160°C, 160°C, 160°C, 160°C, 160°C, 160°C, 160°C and 160°C, the screw speed is set at 200rpm, the torque At 45-55%. The extruder is equipped with a circular die with a diameter of 3 mm. After the spline is extruded from the die and cooled in a water bath, it is cut into cylindrical particles of about 3 mm with a pelletizer. The particles were collected, pumped in a vacuum oven at 60°C for 4 hours, and packaged for use. The melt index of the particles at 190° C. unde...

Embodiment 3

[0104] F BX 7011 PBAT and Eastman TM CAB-531-1 PolyLab HAAKE mentioned above TM Rheomex OS PTW16 co-rotating twin-screw extruder for melt blending extrusion pelletization. In the first section of the extruder, a calibrated volumetric particle feeder is used Feeding of F BX 7011 PBAT particles, the speed is: 1050g / hr, and the volumetric powder feeder after calibration is used in Eastman TM The feeding rate of CAB-531-1 powder is: 1050g / hr. The temperatures of sections 2-11 of the extruder are: 140°C, 150°C, 160°C, 160°C, 160°C, 160°C, 160°C, 160°C, 160°C and 160°C, the screw speed is set at 200rpm, the torque At 45-55%. The extruder is equipped with a circular die with a diameter of 3 mm. After the spline is extruded from the die and cooled in a water bath, it is cut into cylindrical particles of about 3 mm with a pelletizer. The particles were collected, pumped in a vacuum oven at 60°C for 4 hours, and packaged for use. The particles had a melt index of 20.81 g / 10 m...

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Abstract

The invention relates to a thermoplastic cellulose-aliphatic aromatic copolyester blend fiber, and aims to solve the problems that in the prior art, during the process of low temperature processing, the viscosity of thermoplastic cellulose is high, the fiber forming property is bad, and the application range of thermoplastic cellulose is limited. The blend, which is made of 20 to 80 wt% of thermoplastic cellulose and 20 to 80 wt% of aliphatic aromatic copolyester, is adopted and is prepared by a continuous melting extruding blending method. The viscosity of the blend is at least about 20% lessthan the blending addition theoretical value of two primary raw materials at a low shearing speed and is at least 20% less than the blending addition theoretical value of two primary raw materials ata high shearing speed. The problem is well resolved. The preparation method can be applied to industrial production of thermoplastic cellulose-aliphatic aromatic copolyester blend fibers.

Description

technical field [0001] The invention belongs to the field of blend materials of thermoplastic cellulose and aliphatic aromatic copolyester, and specifically relates to a blend fiber of thermoplastic cellulose and aliphatic aromatic copolyester with special rheological properties. The invention also relates to a method for preparing thermoplastic cellulose and aliphatic aromatic copolyester blend fibers and non-woven fabrics with special rheological properties. technical background [0002] Cellulose is the organic polymer with the largest reserves on the earth, and it is also the biomass material with the largest annual renewable amount. Cellulose is the structural material in the cell walls of green plants, woody plants contain about 30-40% cellulose, and cotton fibers contain about 90% cellulose. The main industrial use of cellulose is paper and cardboard, and a small amount of cellulose is used to prepare regenerated cellulose such as cellophane, viscose (Rayon) and some...

Claims

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Application Information

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IPC IPC(8): D01F8/02D01F8/14
CPCD01F8/02D01F8/14
Inventor 詹姆斯·洪学·王周炳
Owner CHINA PETROLEUM & CHEM CORP
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