Environment-friendly high-barrier multi-layer coextrusion medical transfusion film
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An environment-friendly, high-barrier technology, applied in the direction of layered products, synthetic resin layered products, chemical instruments and methods, etc., can solve the problems of PCCE copolyester ether that have not been seen yet, and achieve good transparency and uniform microstructure , Excellent heat sealing effect
Inactive Publication Date: 2015-11-25
江苏博生医用新材料股份有限公司
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By searching the prior art literature, it is found that there is no report related to PCCE copolyester ether as the outer layer
Method used
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Embodiment 1
[0026] Example 1, such as figure 1As shown, an environment-friendly high-barrier multi-layer co-extrusion medical infusion film, the medical infusion film adopts a seven-layer film composite structure, and the layers are A / B / C / D / E / F / G from outside to inside. : The A layer is the outer layer 2, and the material is a copolymer formed by the copolymerization of 1,4-cyclohexanedicarboxylic acid, 1,4-cyclohexanedimethanol and poly-1,4-butanediol Ester ether PCCE and polyethylene naphthalate reaction blended esterified resin; B layer is the first adhesive layer (2), the material is ethylene methacrylate copolymer; C layer is the sub-core layer 3 , the material is metallocene linear polyethylene; the D layer is the core layer 4, and the material is high temperature resistant ethylene-vinyl alcohol copolymer; the E layer is the sub-core layer 5, and the material is metallocene linear polyethylene; the F layer is the second adhesive Layer 6, the material is metallocene linear polyethy...
Embodiment 2
[0027] In Example 2, the thickness of each layer of A / B / C / D / E / F / G is 20 μm, 8 μm, 45 μm, 52 μm, 45 μm, 8 μm, and 20 μm in sequence, and the rest are the same as in Example 1.
Embodiment 3
[0028] In Example 3, the thicknesses of the layers of A / B / C / D / E / F / G are 19 μm, 12 μm, 40 μm, 60 μm, 40 μm, 12 μm, and 19 μm, and the rest are the same as in Example 1.
[0029] For three specific examples, see figure 2 , a table of specific embodiments of the present invention. Except that the material of layer A is self-made by reaction blending, other materials used in the present invention are purchased from the market, and all production and preparation processes are carried out in a clean area of 10,000 grades, and the seven-layer co-extruded medical infusion film is purified in nitrogen or argon gas of 10,000 grades. Under air conditions, it is produced by seven-layer co-extrusion blown film technology.
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Abstract
The invention discloses an environment-friendly high-barrier multi-layer coextrusion medical transfusion film. The medical transfusion film adopts a seven-layer film compound structure and comprises an A layer, a B layer, a C layer, a D layer, an E layer, an F layer and a G layer which are successively arranged from outside to inside, wherein the A layer is a mixed resin outer layer prepared from PCCE and PEN by reacting, blending and esterification; the B layer is a first bonding layer composed of an ethylene methyl acrylate copolymer; the C layer is a secondary-core layer composed of metallocene linear polyethylene; the D layer is a core layer composed of a high-temperature resistant ethylene-vinyl alcohol copolymer; the E layer is a secondary-core layer composed of the metallocene linear polyethylene; the F layer is a second bonding layer composed of metallocene linear polyethylene grafted maleic anhydride; and the G layer is an inner layer composed of an ethylene-propylene copolymer. The medical transfusion film has the characteristics of environmental friendliness, good transparency, excellent thermal weldability, high-temperature resistance, chemical resistance, high barrier property, etc., and can be extensively applied to the field of high-barrier medical transfusion packaging.
Description
technical field [0001] The invention belongs to the field of medical polymer materials, and in particular relates to an environment-friendly high-barrier multilayer co-extrusion medical transfusion film. Background technique [0002] The annual demand for infusion solution in my country has reached more than 10 billion (bottle) bags, and it is increasing at an annual rate of 15-20%, ranking first in the world. Due to many defects, glass bottles and plastic bottle infusion packaging materials will be gradually replaced by new products, resulting in a downward trend in usage rate. However, a large number of PVC infusion soft bags currently on the market contain the plasticizer DEHP. This plasticizer will be dissolved from the infusion soft bags and mixed into the liquid medicine. Many patients have pyrogenic reactions due to this, and damage the reproductive function of boys. , and even cause harm to the fetus in the pregnant woman's womb. The State Drug Administration once ...
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