Special material for infusion bottle (bag) ring pull covers and preparation method thereof

A technology for infusion bottles and ring caps, which is applied in the field of special materials for pull ring caps of infusion bottles and its preparation, and can solve the problems of high tensile strength, product rupture, and low elongation at break.

Inactive Publication Date: 2011-02-16
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the relatively low melting temperature of polyethylene materials (about 110°C), it cannot meet the requirements of 121°C moist heat sterilization for medical materials.
[0008] Polypropylene materials have a relatively high melting temperature, which can basically meet the requirements of 121°C moist heat sterilization for medical materials, but ordinary polypropylene materials have shortcomings such as high tensile strength and low elongation at break. When polypropylene material is used for injection molding to prepare the pull ring cover of infusion bottle (bag), on the one hand, the product will be broken at the pull ring when demolding due to the low elongation at break; on the other hand, it will be caused by high tensile strength During the use of the product, the opening force of the pull ring is relatively large, and it may even fail to open

Method used

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  • Special material for infusion bottle (bag) ring pull covers and preparation method thereof

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Experimental program
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Effect test

Embodiment 4

[0047] A kind of preparation of infusion bottle (bag) ring cap special material:

[0048] After mixing polyethylene, polypropylene, polyolefin compatibilizers and nucleating agents, they are prepared and molded according to the test requirements. According to the required properties of the materials, they are tested for tensile properties, melt flow rate, and damp heat. Bacteria test and pull ring opening force test.

Embodiment 5

[0050] A kind of preparation of special material for pull-tab cap of medical infusion bottle (bag):

[0051] After mixing polyethylene, polypropylene, polyolefin compatibilizer, and nucleating agent, use twin-screw extrusion to granulate, prepare and shape according to the test requirements, and stretch them according to the required properties of the material Performance, Melt Flow Rate Testing, Moist Heat Sterilization Testing and Pull Ring Opening Force Testing.

Embodiment 6

[0053] With the compositions prepared by comparative example 1, comparative example 2, comparative example 3, embodiment 4 and embodiment 5, after the preparation and molding according to the test requirements, by the required properties of the material, they are subjected to tensile properties , Melt flow rate test, moist heat sterilization test and pull ring opening force test. The test results are shown in Table 1.

[0054] The tensile property test of the material is carried out according to the method described in GB / T 1040-92, the melt flow rate test of the material is carried out according to the method described in GB / T 3682-2000, and the test of moist heat sterilization and pull ring opening force is carried out according to the "National Drug Packaging Containers (Materials) Standard - Infusion Containers with Polypropylene Combination Caps "YBB002-2004" method. The test results are shown in Table 1

[0055] Table 1 Material performance test

[0056]

[0057] A...

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Abstract

The invention discloses a special material for infusion bottle (bag) ring pull covers and a preparation method thereof. The special material for infusion bottle (bag) ring pull covers is prepared from the following components in portions by weight: 10-95 portions of polyethylene, 5-40 portions of polypropylene, 10-60 portions of polyolefin compatibilizer and 0-1 portions of nucleating agent. The invention has the characteristics of simple production process, low production cost, low equipment occupation and the like, and can be used for mass production in cleaning shops; all the raw materials are authenticated by FDA, and are hygienic and reliable, and the product obtain by injection-molding the composition has the advantages of high transparency, favorable flexibility and soft feeling; and the initial force of the product is low when the product is opened, and the edge of the split surface is smooth and flush after the product is opened.

Description

technical field [0001] The invention relates to a special material for a tab-pull cap of an infusion bottle (bag) and a preparation method thereof. The material can also be used for the preparation of covers such as easy-open oil pot caps and beverage bottle caps. It belongs to the field of polymer materials. Background technique [0002] The preparation of packaging materials from polypropylene, especially packaging materials for medical infusion bottles, is a new technology that has developed rapidly in recent years. Compared with traditional glass packaging, polypropylene plastic medical packaging materials have the advantages of pharmacological safety and reliability, low energy consumption and cost of packaging material manufacturing, light product quality, not easy to break, and easy transportation. [0003] In Japan, South Korea and developed countries in Europe and the United States, the development and application of pharmaceutical polyolefin materials is already a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/06C08K3/34C08L23/06C08L23/08C08K5/09C08L23/16C08K5/053
Inventor 周威蒋涛蔡芳昌马宁
Owner HUBEI UNIV
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