CN112874086A - Preparation method and application of composite adsorption inactivated virus non-woven fabric - Google Patents

Preparation method and application of composite adsorption inactivated virus non-woven fabric Download PDF

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Publication number
CN112874086A
CN112874086A CN202010694191.1A CN202010694191A CN112874086A CN 112874086 A CN112874086 A CN 112874086A CN 202010694191 A CN202010694191 A CN 202010694191A CN 112874086 A CN112874086 A CN 112874086A
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woven fabric
adsorption
virus
inactivation
melt adhesive
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许磊
田勇涛
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Zhongke Yiran Future Dalian Technology Development Co ltd
Dalian Institute of Chemical Physics of CAS
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Zhongke Yiran Future Dalian Technology Development Co ltd
Dalian Institute of Chemical Physics of CAS
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0442—Antimicrobial, antibacterial, antifungal additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0471—Surface coating material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B01D2239/0668—The layers being joined by heat or melt-bonding
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B2250/20—All layers being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B2262/0261—Polyamide fibres
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B2262/0292—Polyurethane fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B32B2307/7145—Rot proof, resistant to bacteria, mildew, mould, fungi
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption

Abstract

The invention relates to a preparation method and application of a composite adsorption inactivated virus non-woven fabric. The compound adsorption inactivated virus non-woven fabric comprises an adsorption inactivated virus nanometer functional material and a non-woven fabric. The non-woven fabric material for adsorbing and inactivating the virus is easy to produce, has good air permeability and has direct adsorption and inactivation effect on novel coronavirus SARS-CoV-2. Can be used for producing masks, protective clothing, wet tissues, medical aseptic packaging materials, diapers, air purifiers, air-conditioning filters and the like with the functions of adsorbing and inactivating viruses.

Description

Preparation method and application of composite adsorption inactivated virus non-woven fabric
Technical Field
The invention relates to a composite adsorption inactivated virus non-woven fabric and a preparation method thereof, belonging to the technical field of special non-woven fabric production.
Background
Viruses are generally composed of a long nucleic acid chain (DNA or RNA) and a protein coat, called capsid, which also surrounds the surface of the coronavirus with a protein envelope and spike structure, which together determine the specificity of the virus. The spread and infection of viruses has become one of the greatest threats to humans, and for centuries, diseases such as variola virus, ebola virus, aids virus, etc. take billions of people to live. Viral infections have been on the rise in recent decades, such as influenza A H1N1 virus, SARS-CoV coronavirus causing Severe Acute Respiratory Syndrome (SARS). The recent emergence of new coronavirus (SARS-CoV-2) infection caused pneumonia epidemic seriously jeopardizes the health and life safety of people all over the world.
How to effectively inhibit the spread and infection of viruses, besides drug treatment and vaccine development, effective blocking and inactivation of viruses will be one of the most effective means. At present, all protective equipment aiming at viruses, such as a mask, protective clothing and the like, play a role in isolating the viruses, and can not effectively inactivate the viruses, particularly, if a central air-conditioning system can not inactivate the viruses in a ventilation system, the viruses are more easily spread. Therefore, there is a need to develop materials and protective products having the functions of adsorbing and inactivating viruses, such as masks, protective clothing, air conditioners, air purifier filter elements and the like, which are used for protecting individuals, families, hospitals, stations and other large public places, and can adsorb and inactivate viruses while isolating the viruses, thereby effectively inhibiting the propagation and infection of the viruses and protecting the health of people.
People in Liu, etc. (catalytic science report [ J ], 2003, 24 (5): 232-327, Chinese patent CN 1242815C) developed a porous solid material with virus adsorption and inactivation effects, which has direct inactivation effect on parainfluenza virus through the detection of Dalian medical university and simultaneously has better inhibition effect on human herpesvirus and human adenovirus. The principle is that the hydrolysis of the virus is accelerated by utilizing the acidity and the alkalinity of the porous solid material, so that the molecular structure of the virus is changed, or the adsorbed virus molecules are catalyzed and oxidized by utilizing the oxidation-reduction property, so that the molecular structure of the virus is destroyed or changed, and the function of the virus is lost. But no material is applied to the protective product.
Disclosure of Invention
The invention aims to provide a composite non-woven fabric with the function of adsorbing and inactivating viruses, which is easy to produce, has good air permeability and has direct adsorption and inactivation effects on novel coronavirus (SARS-CoV-2).
The composite adsorption and inactivation virus non-woven fabric comprises a non-woven fabric and an adsorption and inactivation virus nano functional material, and the adsorption and inactivation virus nano functional material is fixedly carried between the two layers of non-woven fabrics through hot melt adhesive. The mass ratio of the adsorption and inactivation virus nanometer functional material immobilized on the composite adsorption and inactivation virus non-woven fabric is 1-50%. The mass ratio of the hot melt adhesive to the composite adsorption and inactivation virus non-woven fabric is 0.5-10%.
Optionally, the bottom layer non-woven fabric and the upper layer non-woven fabric are respectively made of at least one fiber of terylene, polypropylene fiber, chinlon, spandex, polyvinyl chloride fiber and acrylic fiber, and the surface density of each layer of non-woven fabric is 5-200 g/m2。
Optionally, the hot melt adhesive is one or a mixture of a polyurethane hot melt adhesive (PUR), a polyethylene-vinyl acetate hot melt adhesive (EVA), a polyamide hot melt adhesive (PA), a polyethylene hot melt adhesive, and a polypropylene hot melt adhesive.
Optionally, the virus nano-functional material for adsorption inactivation is ZrO2、ZnO、TiO2、CaSiO3、Al2O3、SiO2Type A molecular sieveAnd one or more of the X-type molecular sieves are mixed to be used as raw materials and are prepared by roasting and ball milling.
Optionally, the particle size of the nano functional material for adsorbing and inactivating viruses is 5-100 nm, preferably 20-100 nm.
The second aspect of the present invention provides a method for preparing the composite adsorption-inactivation virus non-woven fabric, comprising the following steps:
(a) firstly, coating a hot melt adhesive on a bottom layer non-woven fabric by a gravure roller process;
(b) uniformly spraying the nanometer functional material for adsorbing and inactivating viruses on the bottom non-woven fabric coated with the hot melt adhesive in the step (a);
(c) covering the upper non-woven fabric on the bottom non-woven fabric coated with the hot melt adhesive and the virus adsorption and inactivation nanometer functional material in the step (b) to obtain a double-layer non-woven fabric containing the virus adsorption and inactivation nanometer functional material;
(d) and (c) carrying out hot rolling molding on the double-layer non-woven fabric containing the adsorption and inactivation virus nano functional material obtained in the step (c) to obtain the compound adsorption and inactivation virus non-woven fabric.
Optionally, the hot rolling temperature is 40 to 260 ℃ and the rolling line pressure is 2 to 400 Kgf/cm.
In a third aspect of the present invention, there is provided the composite adsorption and inactivation virus non-woven fabric prepared by the method described above, and the composite adsorption and inactivation virus non-woven fabric prepared by the method described above can be applied to masks, protective clothing, wet tissues, medical aseptic packaging materials, diapers, air purifiers, and air conditioning filters.
The invention has the following beneficial effects:
the composite adsorption inactivated virus non-woven fabric is easy to produce and good in air permeability, and the adopted adsorption inactivated virus nano functional material has a direct inactivation effect on novel coronavirus (SARS-CoV-2). The compound adsorption inactivated virus non-woven fabric can be used for preparing masks, protective clothing, wet tissues, medical aseptic packaging materials, diapers, air purifiers, air-conditioning filters and the like.
Drawings
FIG. 1 is a schematic flow chart of a preparation method of the composite adsorption inactivation virus non-woven fabric provided by the invention;
FIG. 2 is a comparison of the efficiency of the adsorption killing of the novel coronavirus (SARS-CoV-2) by the adsorption inactivated virus nano-functional material (ASC-28-6) prepared by the present invention and the glass beads as the control material.
Detailed Description
The present invention will be described in detail with reference to examples, but the present invention is not limited to these examples. Meanwhile, the examples only show some conditions for preparing the composite adsorption-inactivation virus non-woven fabric, but do not mean that the conditions must be met to achieve the purpose.
Unless otherwise specified, the raw materials used in the examples were all obtained from commercial sources, and the equipment was set according to the parameters recommended by the manufacturer.
EXAMPLE 1 preparation of nano-functional Material for adsorbing and inactivating viruses
Uniformly mixing 300g of calcium silicate, 500g of titanium oxide, 200g of zirconium oxide and 200g of 13X molecular sieve, roasting for 6 hours at 550 ℃ in air atmosphere, cooling to room temperature, and putting the mixture and agate balls into a ball mill for ball milling for 24 hours to obtain the nano functional material, namely ASC-28-6.
The particle size distribution of the nano functional material is 50-80 nm by adopting a Malvern Mastersizer 2000 laser particle size instrument for testing.
The detection of ASC-28-6 nanometer functional material adsorption inactivation novel coronavirus (SARS-CoV-2) performance by Anhui disease prevention and control center is shown in FIG. 2. 50mg and 200mg of ASC-28-6 nano functional materials prepared by the invention reach 100% of adsorption inactivation rate to novel coronavirus (SARS-CoV-2).
EXAMPLE 2 preparation of composite polypropylene nonwoven Fabric for Virus inactivation by adsorption
The nonwoven fabric used in the examples was a commercially available polypropylene (PP) nonwoven fabric having an areal density of 20g/m2。
FIG. 1 is a flow chart of a preparation method of the composite adsorption inactivation virus non-woven fabric provided by the invention. Wherein: the production process comprises the following steps of 1 bottom layer non-woven fabric, 2 hot melt adhesive, 3 gravure rollers, 4 rubber compression rollers, 5 scrapers, 6 glue grooves, 7 transmission rollers, 8 upper layer non-woven fabric, 9 hot rolling rollers, 10 cooling rollers, 11 coiling rollers, 12 nanometer functional materials, 13 powder scattering machines and 14 steel rollers.
The preparation method of the composite polypropylene non-woven fabric for adsorbing and inactivating the viruses comprises the following steps:
step one, adding polyurethane hot melt adhesive (PUR) into an adhesive tank 6 for heating and melting, and simultaneously heating a hot roller 9 to 120 ℃.
And step two, winding the bottom layer non-woven fabric 1 on a winding roll 11 after passing through a gravure roll 3 (without gluing), a driving roll 7, a hot rolling roll 9 (without pressurizing) and a cooling roll 10.
And step three, winding the upper-layer non-woven fabric 8 on a winding roller 11 after passing through a hot roller 9 (pressurizing) and a cooling roller 10.
And step four, pouring the nano functional materials for adsorbing and inactivating the viruses into a bin of a powder scattering machine, starting the gravure roller 3 to glue the bottom non-woven fabric, and then starting the powder scattering machine to uniformly scatter the nano functional materials for adsorbing and inactivating the viruses on the bottom non-woven fabric coated with the hot melt adhesive.
And step five, performing hot rolling compounding on the bottom layer non-woven fabric which is glued and coated with the adsorption and inactivation virus nano functional material and the upper layer non-woven fabric through a hot roller 9, and rolling the composite adsorption and inactivation virus non-woven fabric on a material rolling roller 11 after passing through a cooling roller 10 to obtain the composite adsorption and inactivation virus non-woven fabric.
The weight ratio of the adsorption and inactivation virus nano-functional material immobilized on the composite adsorption and inactivation virus polypropylene non-woven fabric is measured to be 26.8%.
Example 3 composite adsorption-inactivation virus polypropylene nonwoven cloth air permeability test
The YG461E digital air permeameter was used to test according to the national standard GB/T5453.
The air permeability of the composite polypropylene nonwoven fabric for adsorbing and inactivating viruses and the double-layer polypropylene nonwoven fabric which is not coated with the nano-functional material is tested, and the test results are shown in table 1.
TABLE 1
Figure BDA0002590382430000051
Therefore, the composite polypropylene nonwoven fabric for adsorbing and inactivating viruses prepared in the embodiment 2 has good air permeability.
EXAMPLE 4 preparation of composite adsorption-inactivation virus polyester nonwoven fabric
The nonwoven fabric used in the examples was a commercially available Polyester (PET) nonwoven fabric having an areal density of 15g/m2。
The preparation steps of the composite adsorption inactivation virus polyester non-woven fabric are the same as those of the example 2, only the polyurethane hot melt adhesive (PUR) is replaced by the polyethylene-vinyl acetate hot melt adhesive (EVA), and the temperature of the hot roller 9 is raised to 130 ℃, so that the composite adsorption inactivation virus polyester non-woven fabric is obtained.
Weighing and measuring the mass ratio of the adsorption and inactivation virus nano functional material immobilized on the composite adsorption and inactivation virus polyester non-woven fabric to be 27.2%.
Example 5 air permeability test of composite adsorption-inactivation virus nonwoven fabric
The YG461E digital air permeameter was used to test according to the national standard GB/T5453.
The air permeability of the composite adsorption and inactivation virus polyester non-woven fabric and the double-layer polyester non-woven fabric which is not coated with the nano-functional material is tested, and the test results are shown in table 2.
TABLE 2
Figure BDA0002590382430000061
Therefore, the composite adsorption and inactivation virus polyester non-woven fabric prepared in the embodiment 4 has good air permeability.
The above description is only an example of the present invention, and not intended to limit the present invention in any way, and although the present invention has been disclosed by the preferred embodiments, the present invention is not limited thereto, and those skilled in the art can make various changes and modifications within the technical scope of the present invention without departing from the technical scope of the present invention.

Claims (6)

1. A preparation method of a compound adsorption inactivated virus non-woven fabric is characterized in that an adsorption inactivated virus nanometer functional material is immobilized between two layers of non-woven fabrics to obtain the compound adsorption inactivated virus non-woven fabric, and the preparation method comprises the following steps:
(a) firstly, coating a hot melt adhesive on a bottom layer non-woven fabric by a gravure roller process;
(b) uniformly spraying the nanometer functional material for adsorbing and inactivating viruses on the bottom non-woven fabric coated with the hot melt adhesive in the step (a);
(c) covering the upper non-woven fabric on the bottom non-woven fabric coated with the hot melt adhesive and the virus adsorption and inactivation nanometer functional material in the step (b) to obtain a double-layer non-woven fabric containing the virus adsorption and inactivation nanometer functional material;
(d) and (c) carrying out hot rolling molding on the double-layer non-woven fabric containing the adsorption and inactivation virus nano functional material obtained in the step (c) to obtain the compound adsorption and inactivation virus non-woven fabric.
2. The preparation method according to claim 1, wherein the bottom layer non-woven fabric and the upper layer non-woven fabric are made of at least one of polyester, polypropylene, chinlon, polyethylene, spandex, polyvinyl chloride and acrylic;
the surface density of the bottom non-woven fabric and the surface density of the upper non-woven fabric are both 5-200 g/m2。
3. The method according to claim 1, wherein the nano-functional material for adsorbing and inactivating viruses is ZrO2、ZnO、TiO2、CaSiO3、Al2O3、SiO2One or more of the A-type molecular sieve and the X-type molecular sieve are mixed to be used as raw materials and are prepared by roasting and ball milling;
the particle size of the adsorption and inactivation virus nanometer functional material is 5-100 nm;
the mass ratio of the adsorption and inactivation virus nanometer functional material immobilized on the composite adsorption and inactivation virus non-woven fabric is 1-50%.
4. The preparation method of claim 1, wherein the hot melt adhesive is one or a mixture of polyurethane hot melt adhesive, polyethylene-vinyl acetate hot melt adhesive, polyamide hot melt adhesive, polyethylene hot melt adhesive and polypropylene hot melt adhesive;
the mass ratio of the hot melt adhesive to the composite adsorption and inactivation virus non-woven fabric is 0.5-10%.
5. The method according to claim 1, wherein the hot rolling temperature is 40 to 260 ℃ and the rolling line pressure is 2 to 400 Kgf/cm.
6. The application of the composite adsorption and inactivation virus non-woven fabric prepared by the method according to any one of claims 1 to 5 in masks, protective clothing, wet tissues, medical aseptic packaging materials, diapers, air purifiers and air-conditioning filters.
CN202010694191.1A 2020-07-17 2020-07-17 Preparation method and application of composite adsorption inactivated virus non-woven fabric Pending CN112874086A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114561803A (en) * 2021-12-02 2022-05-31 宁夏锡纳升生物科技有限公司 Virus trapping material and production process

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Publication number Priority date Publication date Assignee Title
CN2393626Y (en) * 1999-05-13 2000-08-30 中国人民解放军57605部队 Purifying filtering materials containing particular adsorbent
CN101453995A (en) * 2006-02-16 2009-06-10 玛丽皇后和威斯特-弗尔德学院 Virucidal materials

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2393626Y (en) * 1999-05-13 2000-08-30 中国人民解放军57605部队 Purifying filtering materials containing particular adsorbent
CN101453995A (en) * 2006-02-16 2009-06-10 玛丽皇后和威斯特-弗尔德学院 Virucidal materials

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114561803A (en) * 2021-12-02 2022-05-31 宁夏锡纳升生物科技有限公司 Virus trapping material and production process
CN114561803B (en) * 2021-12-02 2024-01-30 宁夏锡纳升生物科技有限公司 Virus trapping material and production process thereof

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