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Preparation method for high-combination interface stable type medical transfusion film material

A technology of stable interface and infusion film, which is applied in the field of medical materials, can solve the problems affecting the transparency of products, interface adhesive edge properties, processing temperature, large difference in flow properties, and poor flexibility of PET, etc., so as to reduce agglomeration, The effect of high surface energy and high specific surface area

Pending Publication Date: 2019-11-15
刘军伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The technical problem to be solved by the present invention is that the flexibility of PET is poor, and compared with polyolefin resin, the processing temperature and fluidity of PET are quite different, and the phenomenon of interface instability is easy to occur, which seriously affects the transparency and interface viscosity of the product. Junction, edge properties, etc., bring great difficulties to the processing technology, and provide a preparation method for medical infusion membrane materials with high bonding interface stability

Method used

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  • Preparation method for high-combination interface stable type medical transfusion film material

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Effect test

example 1

[0039] According to the mass ratio of 1:5, water glass with a Baume degree of 20 was added to deionized water, stirred and mixed, and the mass fraction of 1.5% phosphoric acid was added dropwise to adjust the pH to 1.5, stirred and sealed, and magnetically stirred at room temperature for 1h, static After standing for 25 minutes, adjust the pH to 7.0 with a mass fraction of 1% sodium hydroxide solution, let it stand and age for 6 hours, and collect the aged gel liquid; weigh 45 parts of absolute ethanol and 10 parts of trimethyl Chlorosilane and 6 parts of n-heptane were placed in a beaker, stirred and mixed, and the modified liquid was collected. Then, the aged gel liquid was placed in the modified liquid at a mass ratio of 1:5, left to stand for 20 hours, filtered and collected. Gel, washed 3 times with n-heptane, dried at normal pressure and 50°C for 3 hours to obtain modified silica airgel material, crushed and ground the modified silica airgel material through 500 sieves, ...

example 2

[0041]According to the mass ratio of 1:5, water glass with a Baume degree of 20 was added to deionized water, stirred and mixed, and the mass fraction of 1.5% phosphoric acid was added dropwise to adjust the pH to 1.5, stirred and sealed, and magnetically stirred at room temperature for 1.5h, After standing still for 27 minutes, adjust the pH to 7.0 with a mass fraction of 1% sodium hydroxide solution, let stand and age for 7 hours, and collect the aged gel liquid; weigh 47 parts of absolute ethanol and 13 parts of trimethyl Chlorosilane and 7 parts of n-heptane were placed in a beaker, stirred and mixed, and the modified liquid was collected. Then, the aged gel liquid was placed in the modified liquid at a mass ratio of 1:5, left to stand for 22 hours, filtered and collected. After washing 4 times with n-heptane, dry at normal pressure and 53°C for 4 hours to obtain modified silica airgel material, crush and grind the modified silica airgel material through 500 sieves , to ob...

example 3

[0043] According to the mass ratio of 1:5, water glass with a Baume degree of 20 was added to deionized water, stirred and mixed, and the mass fraction of 1.5% phosphoric acid was added dropwise to adjust the pH to 1.5, stirred and sealed, magnetically stirred at room temperature for 2 hours, static After standing for 30 minutes, adjust the pH to 7.0 with a mass fraction of 1% sodium hydroxide solution, let it stand and age for 8 hours, and collect the aged gel liquid; weigh 50 parts of absolute ethanol and 15 parts of trimethyl Chlorosilane and 8 parts of n-heptane were placed in a beaker, stirred and mixed, and the modified liquid was collected. Then, the aged gel liquid was placed in the modified liquid at a mass ratio of 1:5, and stood for 24 hours, filtered and collected. gel, washed 5 times with n-heptane, and dried at normal pressure at 55°C for 5 hours to obtain a modified silica airgel material, which was crushed and ground through a 500 sieve, Obtain airgel modified ...

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Abstract

The invention relates to a preparation method for a high-combination interface stable type medical transfusion film material and belongs to the technical field of medical materials. According to the technical scheme, silicon dioxide is adopted for modifying crystallization performance of a PET material, a nano silicon oxide material achieves a nucleation effect so that nanometer silicon balls canserve as crystallization crystal nuclei to improve substrate crystallization performance, meanwhile an EVA resin material serves as a bonding interface layer, and stress concentration phenomena generated when a three-phase composite film is subjected to an applied load are reduced with the improvement of interface bonding performance. When an applied load is applied, a flexible deformation layer on the surface of the PET can loosen prestress of an interface and can also transmit stress to the surface of the PET evenly, thus crack extension at the stress section of the film is restrained, tensile strength of the film is improved, and the mechanical property of the high-combination interface stable type medical transfusion film material is further improved.

Description

technical field [0001] The invention relates to a preparation method of a high-binding interface stable medical infusion membrane material, which belongs to the technical field of medical materials. Background technique [0002] At present, my country's medical infusion containers are mainly glass bottles. Although glass bottles have the advantages of high chemical stability, good transparency, and low price, they have disadvantages such as heavy weight, easy damage, high melting point, and inconvenient portability. This restricts the development space of glass infusion containers in large infusion products. [0003] In recent decades, the application of PVC as medical infusion bags, blood bags, and infusion tubes has become increasingly rapid. The advantages of PVC in medical equipment, such as transparency, flexibility, and low cost, have been widely recognized, but PVC still has fatal shortcomings as a packaging material for medical infusions: [0004] (1) In the proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B9/06B29C48/21C08L67/02C08L23/08C08K13/06C08K9/06C08K9/10C08K7/26C08K3/22B32B27/28B32B27/30B32B27/08B32B27/20B32B27/36B32B7/12B32B27/18B32B33/00B29L7/00B29L9/00
CPCB29B9/06B29C48/21B29L2007/00B29L2009/00B32B7/12B32B27/08B32B27/18B32B27/205B32B27/281B32B27/306B32B27/36B32B33/00B32B2250/24B32B2307/54B32B2307/558B32B2535/00C08L67/02C08L23/0853C08K13/06C08K9/06C08K9/10C08K7/26C08K3/2279
Inventor 刘军伟
Owner 刘军伟
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