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Degradation type composite material

A composite material and polymer technology, applied in the field of degradable composite materials, can solve the problem of high production cost, achieve the effects of good opening, good compatibility, and improved physical properties

Active Publication Date: 2007-03-07
吉林金源北方科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its production cost is high

Method used

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  • Degradation type composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: take each component by following formula (weight part):

[0027] Carbon Dioxide Polymer 100

[0028] PBS 10

[0029] Acetyl tri-n-butyl citrate 10

[0030] Maleic anhydride end-capping agent 1 Mix the components in a high-speed mixer for 5 minutes, then cool and stir, discharge at 20-30°C, and then plasticize, extrude and granulate in a twin-screw or single-screw extruder , the compound is obtained through sterilized and sealed packaging. The temperature setting of the extruder is: 70-120°C in the feeding section, 130-155°C in the plasticizing section, and 130-150°C in the extrusion section. The screw speed is: 300 rpm. The tensile strength (Mpa) of the composite material is 2.64Mpa, and the elongation at break (%) is 846%.

Embodiment 2

[0031] Embodiment 2: take each component by following formula (weight part)

[0032] Carbon Dioxide Polymer 100

[0033] PBS 25

[0034] Acetyl tri-n-butyl citrate 5

[0035] Maleic anhydride end-capping agent 4 Mix the components in a high-speed mixer for 5 minutes, then cool and stir, discharge at 20-30°C, and then plasticize and extrude pellets in a twin-screw or single-screw extruder , the compound is obtained through sterilized and sealed packaging. The temperature setting of the extruder is: 70-120°C in the feeding section, 130-155°C in the plasticizing section, and 130-150°C in the extrusion section. The screw speed is: 300 rpm. The tensile strength (Mpa) of the composite material is 12.10Mpa, and the elongation at break (%) is 598%.

[0036] Embodiment 2: take each component by following formula (weight part)

[0037] Carbon Dioxide Polymer 100

[0038] PBS 20

[0039] Maleic anhydride end-capping agent 2 Mix the components in a high-speed mixer for 5 minutes, ...

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Abstract

The invention discloses a decomposable composite material, which comprises the following parts: carbon dioxide polymer, 10-30% polysuccinic polybutanediol ester (PBS), 0-10% plasticizer and 1-5% capping agent.

Description

technical field [0001] The invention relates to a composite material, in particular to a degradable composite material. Background technique [0002] We know that the composite materials used in existing disposable medical infusion bags and infusion equipment are generally prepared by five-layer or seven-layer co-extrusion method, in which polyvinyl chloride or polyvinylidene chloride is the barrier layer, polyethylene, polyvinylidene chloride, etc. Acrylic is used as a protective layer, and two additional adhesive layers are required in the middle. The barrier layer is used to isolate oxygen and water vapor. At present, the barrier layer of disposable medical materials generally uses polyvinyl chloride. However, processing aids must be used in the processing of polyvinyl chloride, and there is a problem of precipitation of additives during use and storage, which affects the health of patients. Moreover, medical materials generally need to be incinerated, and polyvinyl chl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00
Inventor 冯超
Owner 吉林金源北方科技发展有限公司
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