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Carbon dioxide-epoxy propane copolymer and polybutylene succinate polyblend and preparation method

A technology of polybutylene succinate and propylene oxide, which is applied in the field of polybutylene succinate blends and its preparation, can solve problems such as high cost and restricted promotion, and achieve good performance and ease Pollution, effect of simple synthesis process

Inactive Publication Date: 2007-10-03
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, poly-3-hydroxyalkanoate copolymer is made by microbial fermentation, and its cost is relatively high, which limits the promotion of modified technology to a large extent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Take 70 parts of PPC with a molecular weight of 40000g / mol, 30 parts of PBS with a molecular weight of 30000g / mol, and 1 part of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxy) propionate (ky-7910). The above material was mixed in an internal mixer at 120°C for 10 minutes, and then hot-pressed at 140°C under a pressure of 10MPa. The mechanical properties of the material were measured as follows: the tensile strength was 31.9MPa, and the tensile modulus was 750MPa. The elongation is 11.5%, the notched impact strength is 43.6J / m, and the energy absorption is 280mJ.

Embodiment 2

[0015] Take 30 parts of PPC with a molecular weight of 140000g / mol, 70 parts of PBS with a molecular weight of 80000g / mol, and 1 part of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxy) propionate (ky-7910). The above material was mixed in an internal mixer at 160°C for 10 minutes, and then hot-pressed at 140°C under a pressure of 10MPa. The mechanical properties of the material were measured as follows: the tensile strength was 40MPa, the tensile modulus was 1350MPa, and the fracture The elongation is 21.6%, the notched impact strength is 66.1J / m, and the energy absorption is 400mJ.

Embodiment 3

[0017] Take 40 parts of PPC with a molecular weight of 50000g / mol, 60 parts of PBS with a molecular weight of 200000g / mol, and 1 part of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxy) propionate (ky-7910). The above material was mixed in an internal mixer at 140°C for 10 minutes, and then hot-pressed at 140°C under a pressure of 10MPa. The mechanical properties of the material were measured as follows: the tensile strength was 38.9MPa, and the tensile modulus was 1230MPa. The elongation at break was 19.5%, the notched impact strength was 60.2J / m, and the energy absorption was 380mJ.

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Abstract

This invention relates to mixture of carbon dioxide / propylene oxide copolymer and poly- succinic acid butanediol ester and preparation method. It is composed by carbon dioxide / propylene oxide copolymer, poly- succinic acid butanediol ester and antioxidant four ( beta - ( 3, 5 - di- tertiary butyl - 4 - hydroxy) propanoic acid) pentaerythritol ester ( ky - 7910). These materials blend in Banbury mixer, temperature control at 120 to 160 deg, and time for 10 minutes. The product has biodegradability, useful for preparing film, plates, sheet, effervesce and plastic piece and so on.

Description

technical field [0001] The invention belongs to the field of polymer processing, and relates to a blend of carbon dioxide-propylene oxide copolymer and polybutylene succinate and a preparation method thereof. Background technique [0002] Both carbon dioxide-propylene oxide copolymer (PPC) and polybutylene succinate (PBS) are fully biodegradable polymer materials. One of the main raw materials for the synthesis of PPC, carbon dioxide, is the CO produced in many industrial production fields 2 Exhaust gas, discharged into the atmosphere not only causes environmental pollution, but also wastes carbon resources. CO can be synthesized by PPC 2 The immobilization of resources not only opens up new carbon resources, alleviates the shortage of petrochemical raw materials, but also protects the human ecological environment. On the other hand, the complete biodegradability of PPC, replacing non-biodegradable ordinary plastics, is also of great significance for solving "white pollut...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L67/02C08J3/00
Inventor 韩常玉冉祥海庄宇钢董丽松
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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