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Inner cap material for transfusion packages, and preparation method and applications thereof

A technology for packaging by mass, applied in the field of inner cover material for infusion packaging and its preparation, can solve the problems of low water permeability, poor impact resistance, poor puncture resistance, etc., to avoid yellowing, reasonable formula, and proper matching Effect

Active Publication Date: 2010-08-04
合诚技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These medical polypropylenes have good tensile and bending properties, and can be used to prepare thin-walled products. They have good transparency, low water permeability, and creep resistance, which meet the hygienic requirements of medical materials, but are brittle, poor in impact resistance, and puncture resistance. It is also poor and cannot be directly used to prepare inner caps for infusion packaging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 30 parts by mass of polypropylene (the content of ethylene is 5% by mass, MI is 3g / 10min at 190°C and 2160g), 30 parts by mass of polyethylene (the content of 1-octene is 5% by mass, and 2160g condition MI is 10g / 10min) 20 mass parts, propylene ethylene copolymer (density is 0.90g / cm 3 , MI is 8g / 10min at 190°C and 2160g) 40 parts by mass, flow modifier (random polypropylene, MI is 40g / 10min at 190°C and 2160g) 8 parts by mass and antioxidant (rat Ugrosol and n-tetradecane are obtained by mixing 2:98 by mass ratio) 2 parts by mass are mixed uniformly in a mixer, and then the mixture is fed into the twin-screw extruder at a speed of 50 rpm at 130 ° C, and then mixed at 200 rpm Speed ​​extrusion, water cooling, pelletizing, blow drying to make the inner cover material for infusion packaging. The prepared inner cover material for infusion packaging has a melt index (MI) of 8 g / 10 min at 190° C. and 2160 g (detected according to GB / T 3682-2000, the same for the following e...

Embodiment 2

[0037]40 parts by mass of polypropylene (the content of ethylene is 3% by mass, MI is 20g / 10min at 190°C and 2160g), 40 parts by mass of polyethylene (the content of hexene is 7% by mass, at 190°C and 2160g MI under the condition is 8g / 10min) 24 mass parts, the propylene ethylene copolymer (density is 0.86g / cm 3 , MI at 190°C and 2160g is 5g / 10min) and propylene octene copolymer (density 0.86g / cm 3 , at 190°C and 2160g MI is 20g / 10min) 30 parts by mass of elastomer, flow modifier (random polypropylene, at 190°C and 2160g MI is 50g / 10min) 5 parts by mass and anti 1 mass part of oxygen agent (carnosol and 2,2-dimethyltetradecane mixed in a mass ratio of 3:97) was mixed uniformly in a mixer, and then the mixture was mixed at a speed of 50 rpm at 150 ° C. Feed in the twin-screw extruder, then extrude at a speed of 250rpm, water-cooled, pelletized, blown and dried to make the inner cover material for infusion packaging. The melt index (MI) of the prepared inner cover material for...

Embodiment 3

[0039] 50 parts by mass of polypropylene (the content of ethylene is 5% by mass, MI is 6g / 10min at 190°C and 2160g), 50 parts by mass of polyethylene (the content of butene is 5% by mass, at 190°C and 2160g MI under the condition is 15g / 10min) 30 mass parts, the propylene ethylene copolymer (density is 0.88g / cm 3 , under the conditions of 190°C and 2160g, MI is 10g / 10min) and ethylene-butylene-styrene copolymer (density 0.90g / cm 3 17.5 parts by mass of elastomer, flow modifier (random polypropylene, MI is 70 g / 10min at 190 °C and 2160 g) 2 parts by mass and anti 0.5 parts by mass of oxygen agent (rosmanol and n-triacane mixed in a mass ratio of 5:95) were mixed uniformly in a mixer, and then the mixture was fed into a twin-screw extruder at a speed of 60 rpm at 180°C Then extrude at a speed of 350rpm, water-cool, pelletize, and blow dry to make the inner cover material for infusion packaging. The melt index (MI) of the prepared inner cap material for infusion packaging is 5g...

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Abstract

The invention discloses an inner cap material for transfusion packages, and a preparation method and applications thereof. The preparation method comprises the following steps: uniformly mixing 30-70 parts of polypropylene, 0-30 parts of polyethylene, 10-40 parts of elastomer, 2-8 parts of flow modifier and 0.5-2 parts of antioxidant; adding the mixture into an extruder at 130-180 DEG C at the speed of 30-70 rpm; extruding at the speed of 200-500 rpm; water-cooling, drying, pelleting to obtain the inner cap material for transfusion packages, wherein the melt index of the inner cap material at 190 DEG C under the pressure of 2016g is 5-15g / 10 min. The inner cap material has the advantages of high toughness and good radiotolerance. The inner cap material for transfusion packages can be processed by direct injection molding to prepare inner caps for transfusion packages. The yellowness index of the inner cap radiated by 25kGy of gamma-rays is smaller than or equal to 10, and the rupture rate of the transfusion combination cap punctured by a transfusion contact pin can be smaller than or equal to 2%.

Description

technical field [0001] The invention relates to a material for transfusion packaging, in particular to an inner cover material for transfusion packaging, a preparation method and application thereof, and belongs to the technical field of polymer materials. Background technique [0002] my country is a big country in the production and consumption of infusion medicines, and the consumption in 2007 was as high as 8 billion bottles. At present, the packaging of infusion products is divided into four types: glass bottles, plastic bottles, PVC soft bags and non-PVC soft bags. For a long time, the packaging of infusion products in my country has been dominated by glass bottles. In recent years, the market share of glass bottles, plastic bottles and soft bags in my country is about 7:2:1. However, the glass bottle is easy to break, the rubber stopper additive is easy to precipitate, and the process of producing infusion medicine with it is complicated, and air must be introduced t...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L23/08C08L23/12C08L23/14C08K5/1545C08K5/01B29B9/06
Inventor 游华燕匡俊杰池晓明诸泉蒋文真
Owner 合诚技术股份有限公司
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