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Composition for preparing expandable polypropylene carbonate and expandable polypropylene carbonate prepared therefrom

A technology of polypropylene carbonate and composition, which is applied in the field of composition and foamable polypropylene carbonate prepared therefrom, and can solve problems such as inability to maintain initial shape and the like

Active Publication Date: 2013-10-02
SK INNOVATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this eco-friendly polypropylene carbonate is foamed alone, it shrinks at room temperature after foaming and thus cannot maintain the original shape

Method used

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  • Composition for preparing expandable polypropylene carbonate and expandable polypropylene carbonate prepared therefrom
  • Composition for preparing expandable polypropylene carbonate and expandable polypropylene carbonate prepared therefrom
  • Composition for preparing expandable polypropylene carbonate and expandable polypropylene carbonate prepared therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 100 parts by weight of a base resin composed of 70% by weight of polypropylene carbonate (molecular weight: 150000) and 30% by weight of polybutylene succinate (PBS, molecular weight: 170000), 1 part by weight of polypropylene carbonate Ester compatibilizer (a polypropylene carbonate copolymer, molecular weight: 150000, SK Energy Company), 0.5 parts by weight of p-maleimidophenylisocyanate (PMPI), 5 parts by weight of CaCO 3 and 0.02 parts by weight of a heat stabilizer (Songnox 1076, SongWon Company), and extruded through a twin-screw extruder to form pellets. Feed the produced pellets and then carbon dioxide into the main reactor, raise the temperature from room temperature to 80°C, keep the supercritical carbon dioxide state for 1 hour to allow supercritical carbon dioxide to permeate into the pellets, and then discharge through the exhaust port Carbon dioxide gas, thus forming foam. The foaming results are tabulated in Table 1.

Embodiment 2

[0043] Mix 100 parts by weight of base resin, 1 part by weight of polypropylene carbonate compatibilizer (a poly Propylene carbonate copolymer, molecular weight: 150000, SK Energy Company), 0.5 parts by weight of PMPI, 5 parts by weight of CaCO 3 and 0.02 parts by weight of a heat stabilizer (Songnox 1076, SongWon Company), and extruded through a twin-screw extruder to form pellets. Feed the produced pellets and then carbon dioxide into the main reactor, raise the temperature from room temperature to 80°C, keep the supercritical carbon dioxide state for 1 hour to allow supercritical carbon dioxide to permeate into the pellets, and then discharge through the exhaust port Carbon dioxide gas, thus forming foam. The foaming results are tabulated in Table 1.

Embodiment 3

[0045] 100 parts by weight of base resin, 1 part by weight of polypropylene carbonate compatibilizer (a poly Propylene carbonate copolymer, molecular weight: 150000, SK Energy Company), 0.5 parts by weight of PMPI, 5 parts by weight of CaCO 3 and 0.02 parts by weight of a heat stabilizer (Songnox 1076, SongWon Company), and extruded through a twin-screw extruder to form pellets. Feed the produced pellets and then carbon dioxide into the main reactor, raise the temperature from room temperature to 80°C, keep the supercritical carbon dioxide state for 1 hour to allow supercritical carbon dioxide to permeate into the pellets, and then discharge through the exhaust port Carbon dioxide gas, thus forming foam. The foaming results are tabulated in Table 1.

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PUM

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Abstract

Provided are a composition for preparing expandable polypropylene carbonate and an expandable polypropylene carbonate prepared therefrom, and more particularly, to a composition for preparing expandable polypropylene carbonate capable of using supercritical carbon dioxide as a foaming agent and producing a foam having excellent moldability by using an appropriate foaming method. By using the composition according to the present invention, highly magnificated expandable polypropylene carbonate capable of having excellent thermal stability and dimensional stability can be prepared.

Description

technical field [0001] The present invention relates to a kind of composition for preparing foamable polypropylene carbonate and the foamable polypropylene carbonate prepared therefrom, more specifically, relate to a kind of composition that can use supercritical carbon dioxide Composition of expandable polypropylene carbonate as a blowing agent and producing foam with excellent moldability by using an appropriate foaming method, and a product obtained from the composition capable of excellent thermal stability and dimensional stability High-strength, high-magnification expandable polypropylene carbonate. Background technique [0002] Synthetic resin foam is widely used in heat insulation materials, packaging materials, cushioning materials, interior materials, etc. due to its small weight and its excellent heat insulation and cushioning effects. As the synthetic resin used here, there are various resins such as polystyrene, polyethylene, polypropylene, and the like. Howev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08J9/22C08L33/06C08J9/08
CPCC08J9/0061C08J9/0066C08J9/18C08J2201/026C08J2203/06C08J2369/00C08J2433/06C08J2467/02C08L67/02C08L69/00C08L101/00C08K3/013C08J9/08C08J9/22C08L33/06
Inventor 田民湖朴泳孝丁光镇玉明岸
Owner SK INNOVATION CO LTD
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