CN112694667A - Polypropylene electret masterbatch, melt-blown fabric and preparation method thereof - Google Patents
Polypropylene electret masterbatch, melt-blown fabric and preparation method thereof Download PDFInfo
- Publication number
- CN112694667A CN112694667A CN202011539573.3A CN202011539573A CN112694667A CN 112694667 A CN112694667 A CN 112694667A CN 202011539573 A CN202011539573 A CN 202011539573A CN 112694667 A CN112694667 A CN 112694667A
- Authority
- CN
- China
- Prior art keywords
- electret
- melt
- polypropylene
- antioxidant
- masterbatch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2427/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
Abstract
The invention discloses a polypropylene electret master batch, melt-blown fabric and a preparation method thereof, and relates to the technical field of melt-blown fabric materials. The polypropylene electret master batch is prepared by melting and granulating the following components in percentage by mass: 88-90% of high-melt-index polypropylene, 5-7% of electret, 2-4% of dispersant, 1-2% of nucleating agent, 0.2% of antioxidant and 0.2% of adhesive. The invention adopts the finished product of high-melt index polypropylene as a carrier, the organic fluorocarbon powder as an electret, and corresponding dispersing agent, nucleating agent and antioxidant are added, so that the obtained electret master batch has good compatibility with the high-melt index polypropylene, the added raw materials have stable melt index, the cloth-forming electret effect is obvious, the filtration efficiency is high, and the filtration resistance is small.
Description
Technical Field
The invention relates to the technical field of melt-blown cloth materials, in particular to a polypropylene electret master batch, melt-blown cloth and a preparation method thereof.
Background
The melt-blown fabric is the most core material of the mask, the melt-blown fabric mainly takes polypropylene as a main raw material, and the fiber diameter can reach 1-5 microns. The superfine fiber with the unique capillary structure increases the number and the surface area of the fiber per unit area, so that the melt-blown fabric has good filtering property, shielding property, heat insulation property and oil absorption property, and is widely applied to the field of mask materials.
At present, in the manufacturing process of mask melt-blown cloth, the relatively high particle filtration efficiency is ensured, and simultaneously, the relatively low breathing resistance is ensured. Therefore, the mask melt-blown fabric generally adopts a mode of adding electret master batches, so that the melt-blown fabric is electrified, and the particle filtering efficiency is increased through electrostatic adsorption. However, the common electret in the prior art has the problems of net blocking, material melt finger fluctuation after addition, low electret efficiency and the like.
Therefore, it is necessary to provide a polypropylene electret masterbatch and a preparation method thereof.
Disclosure of Invention
The invention aims to provide a polypropylene electret master batch and a preparation method thereof, and aims to solve the problems of network blockage, material melt index fluctuation after addition, low electret efficiency and the like of an electret agent in the prior art.
In order to achieve the purpose, the invention provides a polypropylene electret master batch which comprises 88-90% of high-melt-index polypropylene, 5-7% of an electret and the balance of auxiliary agents according to the mass ratio; the melt index of the high-melt index polypropylene is 1700-1900 g/min.
According to the embodiment of the invention, the auxiliary agent is 2-4% of dispersing agent, 1-2% of nucleating agent, 0.2% of antioxidant and 0.2% of adhesive.
Furthermore, the electret agent is organic fluorine carbon powder with the grain diameter of 6000-8000 meshes.
Further, the dispersant is EBS.
Further, the nucleating agent is an aluminum-containing basic compound.
Further, the antioxidant is: 0.1 percent of main antioxidant 1010 and 0.1 percent of auxiliary antioxidant 168.
Further, the adhesive is 26# white oil.
Another objective of the present invention is to provide a method for preparing the above-mentioned polypropylene electret masterbatch, which comprises the following steps: and uniformly mixing and stirring the metered materials, transferring the materials to a double-screw extruder for melt blending and extrusion, wherein the melting temperature is 170-.
Still another object of the present invention is to provide a method for preparing a meltblown fabric, comprising the steps of:
the electret master batch is mixed with high-melt-index polypropylene with the melt index of 1500-. Preferably, the mass ratio of the electret master batch is 5%.
Compared with the prior art, the invention has the following effects:
1. the electret master batch provided by the invention adopts finished high-melt-index polypropylene as a carrier, organic fluorocarbon powder as an electret, and corresponding dispersing agent, nucleating agent and antioxidant are added, so that the compatibility of the obtained electret master batch and the high-melt-index polypropylene is good, the melt index of the added raw materials is stable, the cloth-formed electret effect is obvious, the filtering efficiency is high, and the filtering resistance is small.
2. The invention adopts a melt blending mode to ensure that the resins are uniformly mixed with each other, and the preparation mode of the electret master batch material has the advantages of simplicity, rapidness, cheapness and stable performance.
Detailed Description
In order to make the objects, technical solutions and advantageous effects of the present invention more apparent, the present invention is further described in detail with reference to the following detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
The invention provides a polypropylene electret master batch material, which comprises the following components in percentage by mass: 88-90% of high-melt-index polypropylene, 5-7% of electret and the balance of auxiliary agent; the auxiliary agents are 2-4% of dispersing agent, 1-2% of nucleating agent, 0.2% of antioxidant and 0.2% of adhesive according to the processing requirement.
Wherein: the solvent index of the high-melt index polypropylene is 1700-1900 g/min; the electret agent is organic fluorocarbon powder with the grain diameter of 6000-plus-8000 meshes.
The auxiliaries of the present invention include, but are not limited to, the following: the dispersant is EBS; the nucleating agent is an aluminum-containing alkaline compound; the antioxidant is a main antioxidant 1010 and an auxiliary antioxidant 168 with the mass fraction of 0.1 percent; the nucleating agent is an aluminum-containing alkaline compound; the adhesive is 26# white oil.
The invention provides a preparation method of polypropylene electret master batch, which comprises the following steps: and uniformly mixing and stirring the metered materials, transferring the materials to a double-screw extruder for melt blending and extrusion, wherein the melting temperature is 170-. Wherein the length-diameter ratio of the twin-screw extruder is preferably 48, and the melt-extruded material has better effect of passing through a 500-mesh screen.
The invention also provides a method for preparing melt-blown cloth according to the polypropylene electret master batch, which comprises the following steps:
the electret master batch is mixed with high-melt-index polypropylene with the melt index of 1500-. Preferably, the mass ratio of the electret master batch is 5%. The purpose of the strong external electric field treatment is to polarize the material by methods including, but not limited to, electrospinning, corona discharge, tribocharging.
The following are examples and experimental examples of the electret polypropylene masterbatch of the present invention, which are intended to illustrate the advantageous effects of the present invention.
Example 1
The polypropylene electret master batch comprises the following components in percentage by mass: 89.8 percent of high-melt index polypropylene, 6 percent of electret agent, 3 percent of dispersing agent, 1 percent of nucleating agent, 0.1 percent of antioxidant 1010 and 0.1 percent of antioxidant 168. Mixing and stirring uniformly, transferring to a double-screw extruder with the length-diameter ratio of 48, melting, blending and extruding at the melting temperature of 170-205 ℃, carrying out water-cooling cutting on the drawn sliver, and drying by adopting hot air at the temperature of 75 ℃.
Example 2
The polypropylene electret master batch comprises the following components in percentage by mass: 88 percent of high-melt-index polypropylene, 6.66 percent of electret, 3.28 percent of dispersant, 1.66 percent of nucleating agent, 0.1 percent of antioxidant 1010, 0.1 percent of antioxidant 168 and 0.2 percent of 26# white oil. Mixing and stirring uniformly, transferring to a double-screw extruder with the length-diameter ratio of 48, melting, blending and extruding at the melting temperature of 170-.
Example 3
The polypropylene electret master batch comprises the following components in percentage by mass: 90 percent of high-melt-index polypropylene, 5 percent of electret agent, 2 percent of dispersant, 2.6 percent of nucleating agent, 0.1 percent of antioxidant 1010, 0.1 percent of antioxidant 168 and 0.2 percent of 26# white oil. Mixing and stirring uniformly, transferring to a double-screw extruder with the length-diameter ratio of 48, melting, blending and extruding at the melting temperature of 170-205 ℃, drawing strips, cooling with water, granulating, and drying by hot air at the temperature of 75 ℃.
Example 4
The polypropylene electret master batch comprises the following components in percentage by mass: 88 percent of high-melt-index polypropylene, 7 percent of electret agent, 3.6 percent of dispersing agent, 1 percent of nucleating agent, 0.1 percent of antioxidant 1010, 0.1 percent of antioxidant 168 and 0.2 percent of 26# white oil. Mixing and stirring uniformly, transferring to a double-screw extruder with the length-diameter ratio of 48, melting, blending and extruding at the melting temperature of 170-205 ℃, carrying out water-cooling granulation on the drawn strips, and drying by adopting hot air at the temperature of 75 ℃.
Experimental example 1
The polypropylene electret masterbatch prepared in the above examples 1 to 4 was mixed with high melt index polypropylene (melt index 1600 ± 100g/min), wherein the masterbatch material weight ratio was 5%. And (3) spraying the obtained mixture through a melt-blowing device, treating the mixture by using 60kV voltage to obtain a sample melt-blown non-woven fabric, and testing the material by using a TSI8130 automatic filter material machine tester.
The medium adopts NaCl particles with the number average particle size of 0.075 +/-0.02 mu m, the testing flow rate is 32L/min and 85L/min, and the filtering efficiency and the resistance are tested.
A test experiment of pure high melt index polypropylene melt-blown fabric was taken as comparative example 1;
melt-blown nonwoven fabric is prepared by the polypropylene electret master batch obtained in the example 1, and no polarization treatment is carried out, wherein the proportion is 2;
the formula of the polypropylene electret masterbatch in example 1 (without the preparation of masterbatch) was added directly in 5% by weight to mix with high melt index polypropylene (melt index 1600 ± 100g/min), the resulting mixture was sprayed out through a melt-blowing apparatus, and treated with 60kV voltage to obtain a sample melt-blown nonwoven fabric as comparative example 3.
The test results of this experimental example are as follows:
experimental example 2
The polypropylene electret master batch prepared in the embodiment 1-4 is mixed with high-melt index polypropylene (melt index is 1600 +/-100 g/min), wherein the weight ratio of the master batch material is 3%, the obtained mixture is sprayed out by a melt-blowing device and is processed by 60kV voltage to obtain a sample melt-blown non-woven fabric, and the material is tested by a TSI8130 automatic filter material machine tester.
The medium adopts NaCl particles with the number average particle size of 0.075 +/-0.02 mu m, the testing flow rate is 32L/min and 85L/min, and the filtering efficiency and the resistance are tested.
A test experiment of pure high melt index polypropylene melt-blown fabric was taken as comparative example 1;
using the polypropylene electret masterbatch obtained in example 1 to prepare melt-blown nonwoven fabric according to the formula and the method, and using the melt-blown nonwoven fabric without polarization treatment as a comparative example 4;
comparative example 5: the formula of the polypropylene electret masterbatch in example 1 (without pre-preparation of masterbatch) was directly added in 3% by weight and mixed with high melt index polypropylene (melt index 1600 + -100 g/min) to prepare melt-blown fabric in the same manner as experiment 1.
The test results of this experimental example are as follows:
as can be seen from the above examples and experimental examples, the addition of the polypropylene electret masterbatch can effectively improve the filtration efficiency of the high-melt index polypropylene melt-blown fabric. The electret master batch is added into a high-melt-index polypropylene material, the master batch is prefabricated and mixed with a high-melt-index polypropylene main material with similar melt index, the compatibility is good, and the electret master batch is well combined in the main material, so that the melt index is stable, and the electret effect is obvious after the fabric is formed.
The invention is not limited solely to that described in the specification and embodiments, and additional advantages and modifications will readily occur to those skilled in the art, and it is not intended to be limited to the specific details, representative apparatus, and examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.
Claims (10)
1. The polypropylene electret master batch is characterized by comprising the following components in percentage by mass: 88-90% of high-melt-index polypropylene, 5-7% of electret and the balance of auxiliary agent; the melting index of the high-melting-index polypropylene is 1400-1700 g/min.
2. The electret masterbatch according to claim 1, wherein the auxiliary agent is: 2-4% of dispersing agent, 1-2% of nucleating agent, 0.2% of antioxidant and 0.2% of adhesive.
3. The electret masterbatch of claim 2, wherein the electret is organic fluorocarbon powder with a particle size of 6000-.
4. The electret masterbatch of claim 2, wherein the dispersant is EBS.
5. The electret masterbatch of claim 2, wherein the nucleating agent is an aluminum-containing basic compound.
6. The electret masterbatch of claim 2, wherein the antioxidant is: 0.1 percent of main antioxidant 1010 and 0.1 percent of auxiliary antioxidant 168.
7. The electret masterbatch of claim 1, wherein the adhesive is 26# white oil.
8. The preparation method of the polypropylene electret masterbatch according to claim 1, comprising the steps of: and uniformly mixing and stirring the metered materials, transferring the materials to a double-screw extruder for melt blending and extrusion, wherein the melting temperature is 170-.
9. A preparation method of melt-blown fabric comprises the following steps: mixing the electret mother particles obtained in the claim 1 with high-melt index polypropylene with the melt index of 1400-1700g/min according to the mass ratio of 3-5%, melt-blowing, and then treating by strong external electric field to obtain melt-blown non-woven fabric.
10. The method according to claim 9, wherein the mass ratio of the electret mother particles is 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011539573.3A CN112694667A (en) | 2020-12-23 | 2020-12-23 | Polypropylene electret masterbatch, melt-blown fabric and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011539573.3A CN112694667A (en) | 2020-12-23 | 2020-12-23 | Polypropylene electret masterbatch, melt-blown fabric and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112694667A true CN112694667A (en) | 2021-04-23 |
Family
ID=75509372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011539573.3A Pending CN112694667A (en) | 2020-12-23 | 2020-12-23 | Polypropylene electret masterbatch, melt-blown fabric and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112694667A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114134644A (en) * | 2021-11-12 | 2022-03-04 | 常州鼎韦环保科技有限公司 | Non-woven fabric with high filtering performance and processing technology thereof |
| CN114456493A (en) * | 2022-03-04 | 2022-05-10 | 山东天风新材料有限公司 | Electret master batch and preparation method and application thereof |
| CN114525628A (en) * | 2021-12-31 | 2022-05-24 | 苏州卓纳纳米技术有限公司 | Method for manufacturing aerogel heat insulation film through melt-blowing process |
| CN115323619A (en) * | 2022-08-29 | 2022-11-11 | 大连瑞源非织造布有限公司 | Air filtering melt-blown fabric and production method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015158273A1 (en) * | 2014-04-17 | 2015-10-22 | 深圳市中纺滤材无纺布有限公司 | Method for producing highly effective, low resistant fiber composite filtering material |
| CN111484678A (en) * | 2020-06-29 | 2020-08-04 | 金发科技股份有限公司 | Electret master batch for melt-blown non-woven fabric for low-resistance mask and preparation method thereof |
| CN111875886A (en) * | 2020-08-06 | 2020-11-03 | 广州鹿山新材料股份有限公司 | Polypropylene electret masterbatch, preparation method thereof and polypropylene melt-blown non-woven fabric |
-
2020
- 2020-12-23 CN CN202011539573.3A patent/CN112694667A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015158273A1 (en) * | 2014-04-17 | 2015-10-22 | 深圳市中纺滤材无纺布有限公司 | Method for producing highly effective, low resistant fiber composite filtering material |
| CN111484678A (en) * | 2020-06-29 | 2020-08-04 | 金发科技股份有限公司 | Electret master batch for melt-blown non-woven fabric for low-resistance mask and preparation method thereof |
| CN111875886A (en) * | 2020-08-06 | 2020-11-03 | 广州鹿山新材料股份有限公司 | Polypropylene electret masterbatch, preparation method thereof and polypropylene melt-blown non-woven fabric |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114134644A (en) * | 2021-11-12 | 2022-03-04 | 常州鼎韦环保科技有限公司 | Non-woven fabric with high filtering performance and processing technology thereof |
| CN114525628A (en) * | 2021-12-31 | 2022-05-24 | 苏州卓纳纳米技术有限公司 | Method for manufacturing aerogel heat insulation film through melt-blowing process |
| CN114456493A (en) * | 2022-03-04 | 2022-05-10 | 山东天风新材料有限公司 | Electret master batch and preparation method and application thereof |
| CN114456493B (en) * | 2022-03-04 | 2023-08-25 | 山东天风新材料有限公司 | Electret master batch and preparation method and application thereof |
| CN115323619A (en) * | 2022-08-29 | 2022-11-11 | 大连瑞源非织造布有限公司 | Air filtering melt-blown fabric and production method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112694667A (en) | Polypropylene electret masterbatch, melt-blown fabric and preparation method thereof | |
| CN111484678B (en) | Electret master batch for melt-blown non-woven fabric for low-resistance mask and preparation method thereof | |
| WO2021077675A1 (en) | Flame retardant and antimicrobial composite polypropylene filter material and preparation method thereof | |
| CN112662068A (en) | Electret master batch material special for melt-blown fabric and preparation method thereof | |
| CN105951308B (en) | Anti-bacterium haze-proof mask material containing bamboo-leaves flavones and preparation method thereof | |
| CN1718910A (en) | Modified polypropylene mother particle for melt spray, its preparation method and use | |
| CN112175288A (en) | Composite high-fluidity electret master batch and preparation method thereof | |
| CN106076000B (en) | A kind of multilayer melt-blown composite filter material for adding energization auxiliary agent and preparation method thereof | |
| CN111732789A (en) | Antibacterial master batch and preparation method and application thereof | |
| CN112941723A (en) | Preparation method of electret treated modified polypropylene melt-blown fabric | |
| CN111303534A (en) | Special rare earth/polypropylene composite master batch for melt-blowing, melt-blown fabric and preparation method thereof | |
| CN111334931A (en) | Novel polypropylene melt-blown fabric formula and processing technology thereof | |
| CN112480542A (en) | Preparation method of high-filterability polypropylene melt-blown non-woven fabric electret master batch material | |
| CN112358679A (en) | Graphene polypropylene composite material, preparation method, melt-blown cloth and filtering device | |
| CN111892772A (en) | Modified polypropylene master batch, modified melt-blown fabric material and improved melt-blown fabric processing method | |
| CN107189223A (en) | A kind of special ultra-dispersed Masterbatch of polypropylene melt spraying and preparation method thereof | |
| CN112342636B (en) | Preparation method of graphene metal organic framework composite modified polypropylene melt-blown material | |
| CN108796645B (en) | Cool feeling fiber and preparation method and application thereof | |
| CN112647189A (en) | Antibacterial melt-blown fabric and preparation process thereof | |
| CN114163726A (en) | Electret masterbatch for melt-blown non-woven fabric and preparation method thereof | |
| CN111945240B (en) | Electret material for high-molecular melt-blown fibers and detection method thereof | |
| CN106362483A (en) | Polypropylene electret air filtering material with flame retardant performance and preparation method thereof | |
| CN115216887A (en) | Black melt-blown nonwoven material with high-efficiency filtering performance and preparation method thereof | |
| CN106039844A (en) | Harmful gas absorbable melt-blow filter material and preparation method thereof | |
| CN112920508B (en) | Polypropylene electret master batch with high dielectric constant and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210423 |