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Thermoplastic blend material, blend thermoplastic film and preparation method thereof

A thermoplastic and blend technology, which is applied in the field of thermoplastic blend materials and blend thermoplastic films and their preparation, can solve the problems of poor mechanical properties of blends, low content of thermoplastic starch, and poor compatibility

Inactive Publication Date: 2020-05-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One of the technical problems to be solved by the present invention is that in the prior art, the compatibility between the two phases in the thermoplastic starch and aliphatic aromatic copolyester blend is poor, the content of thermoplastic starch is small, and the mechanical properties of the blend are not good, resulting in Poor film properties, poor stretchability of film products, and limited applications, a thermoplastic blend material is provided, in which the aliphatic aromatic copolyester graft polymer is added to the aliphatic aromatic copolyester graft polymer Polyester and thermoplastic starch can effectively enhance the compatibility between aliphatic aromatic copolyester and thermoplastic starch, increase the content of thermoplastic starch in the blend material, and have the advantages of good mechanical properties of the blend material

Method used

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  • Thermoplastic blend material, blend thermoplastic film and preparation method thereof
  • Thermoplastic blend material, blend thermoplastic film and preparation method thereof
  • Thermoplastic blend material, blend thermoplastic film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0098] The grafting monomer hydroxyethyl methacrylate (HEMA) used in the present invention is an analytically pure product of Tokyo Chemical Industry Co., Ltd. (TCI), and the consumption is 10% of the PBAT mass. The initiator 2,5-dimethyl-2,5-di-tert-butylperoxyhexane (Double 25) used in the present invention is an analytically pure product of Bailingwei Technology Co., Ltd., and its dosage is 5% of that of HEMA. Mix PBAT with the required amount of HEMA and bis-2-5 fully, and melt, blend, extrude and granulate in the above-mentioned PolyLab HAAKE Rheomex OS PTW16 co-rotating twin-screw extruder. Or use a metering pump to inject HEMA and Shuangerwu into the twin-screw extruder according to the required amount, melt blend with PBAT, extrude and granulate. In the first stage of the extruder, a calibrated volumetric particle feeder was used to feed the mixed particles at a rate of 2000 g / hr. The temperatures of sections 2-11 of the extruder are respectively: 140°C, 150°C, 160°C,...

Embodiment 2

[0100] The graft monomer glycidyl methacrylate (GMA) used in the present invention is an analytically pure product of Tokyo Chemical Industry Co., Ltd. (TCI), and the consumption amount is 5% of the PBAT mass. The initiator 2,5-dimethyl-2,5-di-tert-butylperoxyhexane (Double 25) used in the present invention is an analytically pure product of Bailingwei Technology Co., Ltd., and the dosage is 5% of the dosage of GMA. Mix PBAT with the required amount of GMA and bis-2-5, fully stir evenly, and melt, blend and extrude pellets in the PolyLab HAAKE Rheomex OSPTW16 co-rotating twin-screw extruder mentioned above. Or use a metering pump to inject the required amount of GMA and Shuang25 into a twin-screw extruder and melt blend with PBAT to extrude and granulate. In the first stage of the extruder, a calibrated volumetric particle feeder was used to feed the mixed particles at a rate of 2000 g / hr. The temperatures of sections 2-11 of the extruder are respectively: 140°C, 150°C, 160°C...

Embodiment 3

[0102]The grafting monomer glycidyl methacrylate (GMA) used in the present invention is an analytically pure product of Tokyo Chemical Industry Co., Ltd. (TCI), and the consumption is 1% of the PBAT mass. The initiator 2,5-dimethyl-2,5-di-tert-butylperoxyhexane (Double 25) used in the present invention is an analytically pure product of Bailingwei Technology Co., Ltd., and the dosage is 5% of the dosage of GMA. Mix PBAT with the required amount of GMA and bis-2-5, fully stir evenly, and melt, blend and extrude pellets in the PolyLab HAAKE Rheomex OSPTW16 co-rotating twin-screw extruder mentioned above. Or use a metering pump to inject the required amount of GMA and Shuang25 into a twin-screw extruder and melt blend with PBAT to extrude and granulate. In the first stage of the extruder, a calibrated volumetric particle feeder was used to feed the mixed particles at a rate of 2000 g / hr. The temperatures of sections 2-11 of the extruder are respectively: 140°C, 150°C, 160°C, 180...

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Abstract

The invention relates to a thermoplastic blend material, a blend thermoplastic thin film and a preparation method thereof, and mainly solves the technical problems that in the prior art, thermoplasticstarch and aliphatic aromatic copolyester are poor in compatibility, poor in film-forming property and poor in film product stretch-ability, and thus the application field is limited. The thermoplastic blend material comprises the following components in parts by mass: (1) 90-60 parts of aliphatic aromatic copolyester; (2) 10 to 40 parts of thermoplastic starch; and (3) 0.1-10 parts of aliphaticaromatic copolyester grafted polymer. The problems are well solved, and the method can be applied to industrial production of thermoplastic starch and aliphatic aromatic copolyester blend films.

Description

technical field [0001] The invention belongs to the field of blend materials of aliphatic aromatic copolyester, thermoplastic starch and aliphatic aromatic copolyester graft polymer, and relates to a thermoplastic blend material, a blend thermoplastic film and a preparation method thereof Specifically, it relates to a thermoplastic blend material of aliphatic aromatic copolyester, thermoplastic starch and aliphatic aromatic copolyester graft polymer, a blend thermoplastic film and a preparation method thereof. Background technique [0002] With the characteristics of lightness, durability, and good processing performance, plastics produced from petroleum have been widely used in various fields. General-purpose plastics such as polyethylene, polypropylene, and polystyrene can exist stably in nature for a long time and are difficult to degrade, causing serious pollution to the environment. On the other hand, petroleum is a non-renewable resource, and long-term use will cause ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L51/08C08L3/02C08J5/18
CPCC08J5/18C08J2367/02C08J2403/02C08J2451/08C08L67/02C08L2205/03C08L51/08C08L3/02
Inventor 王洪学申长江
Owner CHINA PETROLEUM & CHEM CORP