Self-lubrication composite material used for producing easy-folding outer covers of infusion bottles or bags

A self-lubricating, composite material technology, applied in the direction of transportation and packaging, special packaging items, packaging item types, etc., can solve the problems of poor impact resistance, cold resistance, high brittleness of polypropylene resin, etc., to ensure welding strength, Effect of lower friction coefficient and excellent temperature resistance

Active Publication Date: 2014-12-17
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

On the basis of the research on the pull ring type outer cover material for infusion bottles or bags, the inventor further studies the easy-fold outer cover material and finds that the following problems need to be solved: (1) during long-distance transportation, especially in the northern winter , the handle of the easy-fold outer cover is easy to be bumped and opened naturally; (2) The easy-fold outer cover has a lot of friction on the cover assembly machine, and the cover assembly speed cannot be increased, which affects production efficiency
[0005] The invention patent of CN100404606C discloses a kind of adopting polypropylene resin (P

Method used

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  • Self-lubrication composite material used for producing easy-folding outer covers of infusion bottles or bags
  • Self-lubrication composite material used for producing easy-folding outer covers of infusion bottles or bags
  • Self-lubrication composite material used for producing easy-folding outer covers of infusion bottles or bags

Examples

Experimental program
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Effect test

Example Embodiment

[0035] Example 1: Preparation of self-lubricating composite material for manufacturing easy-foldable outer cover for infusion bottle or bag

[0036] The polypropylene (the ethylene content is 7.5% by mass, the melt index is 8g / 10min under the conditions of 230°C and 2160g) 68 parts by mass, the polyethylene (1-hexene content is 4% by mass, the 190 ℃ and 2160g conditions, the melt index is 5g / 10min) 10 parts by mass, ethylene propylene copolymer (density 0.90g / cm 3 , The melt index is 8g / 10min at 230℃ and 2160g) 8 parts by mass, ethylene and norbornene copolymer (the mole percentage of ethylene and norbornene is 40:60, the melt index is at 260℃ and 2160g 14g / 10min) 10 parts by mass, 1,1,2,3,3,3-hexafluoro-1-propylene and 1,1-ethylene fluoride copolymer masterbatch 2 parts by mass, antioxidant (7-methoxy Rosmarinol and 2-methyl-tripentadecane are mixed at a mass ratio of 1:99) 2 parts by mass are mixed uniformly in a high-speed mixer, and then fed into a twin-screw extruder at a sp...

Example Embodiment

[0037] Example 2: Preparation of self-lubricating composite material for manufacturing easy-foldable outer cover for infusion bottle or bag

[0038] Polypropylene (ethylene content is 5% by mass, and its melt index is 17g / 10min at 230°C and 2160g) 75 parts by mass, polyethylene (1-butene content is 7% by mass, at 190 ℃ and 2160g conditions, the melt index is 4g / 10min) 5 parts by mass, ethylene octene copolymer (density 0.88g / cm 3 , The melt index is 20g / 10min at 230℃ and 2160g) 6 parts by mass, ethylene and norbornene copolymer (the mole percentage of ethylene and norbornene is 50:50, the melt index is at 260℃ and 2160g 4g / 10min) 11 parts by mass, 1,1,2,3,3,3-hexafluoro-1-propylene and 1,1-ethylene fluoride copolymer masterbatch 2.5 parts by mass, antioxidant (7-methoxy Rosmarinol and 2-methyl-tripentadecane are mixed at a mass ratio of 7:93) 0.5 parts by mass are mixed uniformly in a high-speed mixer, and then fed into a twin-screw extruder at a speed of 29 rpm at 180°C After e...

Example Embodiment

[0039] Example 3: Preparation of self-lubricating composite material for manufacturing easy-foldable outer cover for infusion bottle or bag

[0040] The polypropylene (ethylene content is 6% by mass, the melt index is 11g / 10min under the conditions of 230°C and 2160g) 81 parts by mass, polyethylene (1-octene content is 3% by mass, at 190 Under the conditions of ℃ and 2160g, the melt index is 3g / 10min) 7 parts by mass, styrene-butadiene-styrene copolymer (density 0.88g / cm 3 , The melt index is 6g / 10min under 230℃ and 2160g conditions) 3 parts by mass, ethylene octene copolymer (density 0.88g / cm 3 , The melt index is 20g / 10min at 230℃ and 2160g) 4 parts by mass, 1,1,2,3,3,3-hexafluoro-1-propylene and 1,1-ethylene fluoride copolymer masterbatch 4 Parts by mass, antioxidant (7-methoxyrosmarinol and n-tetradodecane mixed at a mass ratio of 5:95) 1 part by mass in a high-speed mixer, and then at 210 ℃ at 26 rpm The speed is fed into a twin-screw extruder, and then extruded at a speed o...

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Abstract

The invention belongs to the technical field of materials for infusion bottles or bags and discloses a self-lubrication composite material used for producing easy-folding outer covers of infusion bottles or bags and the application of the self-lubrication composite material in the medicine packing materials. By weight, the self-lubrication composite material comprises the following components: 55-94 parts of polypropylene, 1-20 parts of polyethylene, 1-20 parts of flexibilizers, 2-25 parts of lubrication resin and 0.1-4 parts of antioxidants. The lubrication resin is composed of at least one of ethylene, norbornene copolymer, 1,1,2,3,3,3-hexafluoropropylene-1-propylene and 1,1-polyvinylidene floride copolymer master batches. Polypropylene is adopted as the main material so that the self-lubrication composite material can ensure the welding intensity. The lubrication resin and the substrate have good compatibility so that the self-lubrication composite material has good temperature resistance, biological fitness, chemical inertness and high lubricity, enables the static friction coefficient to be as low as 0.381, the dynamic friction coefficient to be as low as 0.343, and the yellow color index after 25 kGy doses of 60 Co-gamma ray radiation to be smaller than and equal to 9.

Description

technical field [0001] The invention belongs to the technical field of materials for infusion bottles or bags, and in particular relates to a self-lubricating composite material for making easy-fold outer covers for infusion bottles or bags and its application in medical packaging materials. Background technique [0002] In recent years, my country's medical infusion plastic packaging industry has developed rapidly, gradually replacing traditional glass packaging, and there are more and more styles of infusion packaging. Present infusion bottle or bag combination cover generally comprises outer cover, inner cover and the rubber stopper that is installed between inner and outer cover. These three parts are assembled on the cover assembly machine. Specifically, the inner cover, rubber plug and outer cover are transported to the assembly module by their respective tracks to complete the assembly. [0003] The covers currently in use mainly include two types of pull-ring type c...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L27/16C08L45/00C08L23/08C08L53/02A61J1/14
CPCC08L23/14C08L2201/08C08L2205/025C08L2205/035C08L23/0815C08L45/00C08L27/16C08K5/1535C08K5/01C08L53/02C08L53/025
Inventor 刘永焯别拓铭游华燕诸泉蒋文真
Owner 合诚技术股份有限公司
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