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A pva-based medical antibacterial composite film

A technology of composite film and film layer, applied in the field of PVA-based medical antibacterial composite film, which can solve the problems of poor barrier property, swelling of liquid pollutants, holes, etc., and achieve the effect of avoiding process, high production efficiency and good antibacterial property

Active Publication Date: 2019-03-12
常州绿之源高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention is: in order to solve the problem that when the existing PVA film material is directly used as medical protective clothing, it is easy to be swollen by liquid pollutants, and holes appear, and its barrier property is poor. A PVA-based medical antibacterial composite film. A high-temperature PVA non-woven fabric layer is compounded on the outside of the PVA film layer. Using the high porosity of the PVA non-woven fabric, it can effectively fix liquid pollutants and effectively protect the PVA film. layer so that it is not dissolved by liquid contaminants

Method used

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  • A pva-based medical antibacterial composite film
  • A pva-based medical antibacterial composite film
  • A pva-based medical antibacterial composite film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A PVA-based medical antibacterial composite film, comprising: a composite PVA film layer and a PVA needle-punched non-woven fabric layer, the PVA film layer is a blown film, the PVA film layer is a PVA double-layer composite film, and the PVA film layer includes the following components: Points and parts by weight are:

[0031]

[0032] Wherein, magnesium hydroxide and chitosan sorbate mass ratio are 1:10

[0033] Wherein, the preparation method of PVA film layer comprises the steps:

[0034] (1) PVA raw material is mixed uniformly by weight percentage, carries out melting extruding granulation with twin-screw extruder, obtains polyvinyl alcohol masterbatch;

[0035] (2) Extrusion: the polyvinyl alcohol masterbatch is sent to the extruder of the blown film machine, and the extruder is a single-screw extruder, and the diameter of the single screw is 35mm, and the rotating speed is 35r / min; The extrusion process is as follows: the temperature of the first stage is 15...

Embodiment 2

[0041] A PVA-based medical antibacterial composite film, comprising: a composite PVA film layer and a PVA needle-punched non-woven fabric layer, the PVA film layer is a blown film, the PVA film layer is a PVA double-layer composite film, and the PVA film layer includes the following components: Points and parts by weight are:

[0042]

[0043] Wherein, magnesium hydroxide and chitosan sorbate mass ratio are 1:10

[0044] Wherein, the preparation method of PVA film layer comprises the steps:

[0045] (1) PVA raw material is mixed uniformly by weight percentage, carries out melting extruding granulation with twin-screw extruder, obtains polyvinyl alcohol masterbatch;

[0046] (2) Extrusion: the polyvinyl alcohol masterbatch is sent to the extruder of the blown film machine, and the extruder is a single-screw extruder, and the diameter of the single screw is 20mm, and the rotating speed is 30r / min; The extrusion process is as follows: the temperature of the first stage is 15...

Embodiment 3

[0052] A PVA-based medical antibacterial composite film, comprising: a composite PVA film layer and a PVA needle-punched non-woven fabric layer, the PVA film layer is a blown film, the PVA film layer is a PVA double-layer composite film, and the PVA film layer includes the following components: Points and parts by weight are:

[0053]

[0054] Wherein, magnesium hydroxide and chitosan sorbate mass ratio are 1:10

[0055] Wherein, the preparation method of PVA film layer comprises the steps:

[0056] (1) PVA raw material is mixed uniformly by weight percentage, carries out melting extruding granulation with twin-screw extruder, obtains polyvinyl alcohol masterbatch;

[0057] (2) Extrusion: the polyvinyl alcohol masterbatch is sent to the extruder of the blown film machine, and the extruder is a single-screw extruder, and the diameter of the single screw is 65mm, and the rotating speed is 40r / min; The extrusion process is as follows: the temperature of the first stage is 15...

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Abstract

The invention relates to the technical field of PVA (polyvinyl alcohol) composite films, particularly a PVA-base medical antibacterial composite film. The PVA-base medical antibacterial composite film comprises a PVA film layer and a PVA nonwoven fabric layer which are mutually compounded, wherein the PVA film layer is a blown film. According to the PVA-base medical antibacterial composite film, the PVA nonwoven fabric layer is compounded outside the PVA film layer; and the PVA nonwoven fabric is utilized to effectively fix the liquid pollutants by utilizing the characteristic of high porosity, thereby effectively protecting the PVA film layer from being dissolved by the liquid pollutants.

Description

technical field [0001] The invention relates to the technical field of PVA composite membranes, in particular to a PVA-based medical antibacterial composite membrane. Background technique [0002] Water-soluble environmentally friendly medical materials are new environmental protection products developed in developed countries such as Europe and the United States in recent years. The purpose is to avoid pollution and cross-infection of medical staff and patients. Through the extensive use in developed countries such as Europe and the United States in recent years, it is found that the water-soluble PVA environmental protection medical material produced by water-soluble PVA environmental protection material has ideal wear resistance and environmental protection. [0003] The emergence of PVA film can be used as work clothes or protective clothing for medical staff. When there is infection or infection on the work clothes or protective clothing, it can be treated together with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/02B32B27/12B32B27/20B32B27/30B32B33/00B29D7/01B29C48/92B29C55/28
CPCB29C48/92B29C55/28B29C2948/9258B29C2948/92619B29C2948/92704B29D7/01B32B5/022B32B27/12B32B27/20B32B27/306B32B33/00B32B2307/7145
Inventor 彭呈褚鹏飞
Owner 常州绿之源高分子材料有限公司
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