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PTFE isolating membrane for medical protective clothing and preparation method of PTFE isolating membrane

A technology of PTFE and isolation membrane, which is applied in the field of medical protective clothing, can solve the problems of poor air permeability, moisture permeability, poor protection uniformity, and unsatisfactory work, and achieve good flame retardancy, small frictional resistance, and good filtration efficiency. Effect

Active Publication Date: 2020-07-17
SHANDONG SENRONG PLASTIC IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The protective efficiency of ordinary non-woven protective clothing is only about 40%, which is lower than that of the national standard non-woven protective clothing; the filter material formed by flash evaporation once has good protective performance, but the protective uniformity of the fabric is poor; rubber or coated fabrics Protective clothing has good protective effect, but poor air permeability and moisture permeability, which cannot meet the work requirements, especially in hot summer conditions

Method used

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  • PTFE isolating membrane for medical protective clothing and preparation method of PTFE isolating membrane
  • PTFE isolating membrane for medical protective clothing and preparation method of PTFE isolating membrane
  • PTFE isolating membrane for medical protective clothing and preparation method of PTFE isolating membrane

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Effect test

Embodiment 1

[0041] The medical protective clothing PTFE isolation membrane described in the present embodiment 1, in parts by mass, has the following composition of raw materials:

[0042]

[0043]

[0044] in:

[0045] Described PTFE dispersion resin is 106C, and manufacturer is Japan Daikin.

[0046] The technical indicators of 106C are: bulk density 563g / L, tensile strength 34.6MPa, moisture content 0.001%, average particle size 420μm.

[0047] The pore forming agent is a mixture of white oil and hydrocarbon solvent oil; the hydrocarbon solvent oil is iso-dodecane; the mass ratio of white oil to iso-dodecane is 4.0:0.9.

[0048] The antibacterial agent is anatase titanium dioxide.

[0049] The dispersant is a fluorocarbon surfactant, and the fluorocarbon surfactant is 3-trimeric epoxyhexafluoropropane amidopropyl betaine.

[0050] The fluorine-containing waterproof and oil-repellent agent is an organic fluorine resin, and the organic fluorine resin is a mixture of TG-528A and ...

Embodiment 2

[0066] The medical protective clothing PTFE isolation film described in the present embodiment 2, in parts by mass, has the following composition of raw materials:

[0067]

[0068] in:

[0069] The PTFE dispersion resin is DF-206, and the manufacturer is Shandong Dongyue Polymer Material Co., Ltd.

[0070] The technical indicators of DF-206 are: the tensile strength is 34.4MPa, the bulk density is 500g / L, and the particle size is 475 microns.

[0071] The pore forming agent is a mixture of white oil and hydrocarbon solvent oil; the hydrocarbon solvent oil is isomerized hexadecane; the mass ratio of white oil to isomerized hexadecane is 3.5:0.8.

[0072] The antibacterial agent is anatase titanium dioxide.

[0073] The dispersant is a fluorocarbon surfactant, and the fluorocarbon surfactant is 8-3-9 fluorocarbon-hydrocarbon flexible bridge mixed-chain diquaternary ammonium.

[0074] The fluorine-containing waterproof and oil-repellent agent is an organic fluorine resin, ...

Embodiment 3

[0090] The medical protective clothing PTFE isolation film described in the present embodiment 3, in parts by mass, has the following composition of raw materials:

[0091]

[0092] in:

[0093] Described PTFE dispersion resin is 106C, and manufacturer is Japan Daikin.

[0094] The technical indicators of 106C are: bulk density 563g / L, tensile strength 34.6MPa, moisture content 0.001%, average particle size 420μm.

[0095] The pore forming agent is a mixture of white oil and hydrocarbon solvent oil; the hydrocarbon solvent oil is iso-dodecane; the mass ratio of white oil to iso-dodecane is 5:1.

[0096] The antibacterial agent is anatase titanium dioxide.

[0097] The dispersant is a fluorocarbon surfactant, and the fluorocarbon surfactant is 8-3-9 fluorocarbon-hydrocarbon flexible bridge mixed-chain diquaternary ammonium.

[0098] The fluorine-containing waterproof and oil-repellent agent is an organic fluorine resin, and the organic fluorine resin is a mixture of TG-52...

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Abstract

The invention belongs to the technical field of medical protective clothing, and particularly relates to a PTFE isolating membrane for medical protective clothing and a preparation method of the PTFEisolating membrane. The PTFE isolating membrane is prepared from the following raw materials in parts by mass: 100 parts of PTFE dispersion resin, 20 to 40 parts of pore-forming agent, 0.5 to 1.0 partof antibacterial agent, 0.08 to 0.1 part of dispersing agent, 0.7 to 1.0 part of fluorine-containing waterproof and oilproof agent and 0.5 to 0.8 part of antistatic agent. The invention relates to aPTFE isolating membrane for medical protective clothing. The medical multifunctional protective clothing developed by adopting the polytetrafluoroethylene composite film as the isolating layer has durable physical and mechanical properties such as waterproofness, water repellency, antibiosis, static resistance, flame retardance and moisture permeability, and has good barrier property on blood andviruses (liquid weight or gas weight) under natural conditions and pressure conditions, and the barrier (filtering) efficiency is greater than 99%.

Description

technical field [0001] The invention belongs to the technical field of medical protective clothing, and in particular relates to a PTFE isolation film for medical protective clothing and a preparation method thereof. Background technique [0002] Most of the large-scale outbreaks in recent years are respiratory infectious diseases, such as SARS, highly pathogenic avian influenza, influenza A H1N1, and the outbreak of new coronavirus pneumonia in early 2020; the diameter of the new coronavirus is about 80-120 nanometers, and it can infect humans. , rats, pigs, cats, cattle and other vertebrates, the route of transmission is mainly through droplets such as coughing or sneezing, which has the characteristics of fast transmission speed, wide susceptible population, and high incidence rate, requiring a large number of medical staff to invest in it for a while. The front line of anti-epidemic treatment of infected patients, because medical staff must come into contact with toxic a...

Claims

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Application Information

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IPC IPC(8): C08L27/18C08L27/12C08K3/22C08K5/19C08J9/28C08J5/18B29D7/01B29C55/14B29C37/00A41D13/12A41D31/08A41D31/102A41D31/12A41D31/26A41D31/30
CPCC08J9/28C08J5/18B29D7/01B29C55/143B29C37/0092A41D13/12A41D31/30A41D31/26A41D31/102A41D31/08A41D31/12C08J2327/18C08J2427/12C08K2003/2241C08K5/19
Inventor 曹开斌胥平荣利明荣国芳荣海燕李雷涛王昭君周静
Owner SHANDONG SENRONG PLASTIC IND TECH
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