CN115304843B - High-strength flame-retardant artificial grass filaments - Google Patents
High-strength flame-retardant artificial grass filaments Download PDFInfo
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- CN115304843B CN115304843B CN202211031519.7A CN202211031519A CN115304843B CN 115304843 B CN115304843 B CN 115304843B CN 202211031519 A CN202211031519 A CN 202211031519A CN 115304843 B CN115304843 B CN 115304843B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/12—Stretch-spinning methods
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- 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
- D01F1/07—Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
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- 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
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- 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
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/12—Applications used for fibers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Textile Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Artificial Filaments (AREA)
Abstract
The invention relates to the technical field of artificial lawns, which comprises the following raw materials in parts by weight: 90 to 100 parts of polyoxyethylene, 7 to 9 parts of silicon dioxide, 3 to 5 parts of titanium dioxide, 6 to 12 parts of carbide, 5 to 8 parts of elastomer, 2 to 4 parts of aromatic master batch, 14 to 18 parts of coloring master batch, 0.5 to 1 part of antioxidant, 1 to 2 parts of plasticizer, 1 to 3 parts of flame retardant, 0.2 to 0.5 part of ultraviolet absorber and 0.6 to 1 part of antistatic agent. According to the invention, by adding the carbide combination, the mechanical properties such as strength, elongation at break and the like of the artificial grass yarns can be effectively improved, the abrasion loss and rebound resilience of the grass yarns are improved, and meanwhile, the artificial grass yarns also have certain flame retardant property.
Description
Technical Field
The invention relates to the technical field of artificial lawns, in particular to a high-strength flame-retardant artificial grass yarn and a preparation method thereof.
Background
The artificial lawn is a pure artificial product, which is different from natural grass, and is characterized in that grass filaments formed by drawing PA, PP and PE materials and PP grid cloth are sewn together through a grass weaving machine and then are composited together through Ding Benjiao, or the artificial lawn is a chemical product with natural grass movement performance, which is obtained by embedding synthetic fibers imitating grass leaves into a woven base cloth and coating a fixing coating on the back surface of the synthetic fabric.
The artificial grass overcomes the natural defects that natural lawns cannot grow under extreme climatic conditions and cannot be planted in stadiums with ceilings, can meet the requirements of all-weather high-strength sports, has the advantages of simple paving and maintenance, low maintenance cost, wear resistance, easy drainage and the like, and is widely used for leisure, decoration, environmental landscape sites, and special playing sites such as football, hockey, baseball, rugby and the like.
Based on the above situation, the invention provides a high-strength flame-retardant artificial grass filament and a preparation method thereof.
Disclosure of Invention
The invention aims to provide a high-strength flame-retardant artificial grass yarn and a preparation method thereof.
In order to achieve the above purpose, the invention provides a high-strength flame-retardant artificial grass yarn, which comprises the following raw materials in parts by weight: 90 to 100 parts of polyoxyethylene, 7 to 9 parts of silicon dioxide, 3 to 5 parts of titanium dioxide, 6 to 12 parts of carbide, 5 to 8 parts of elastomer, 2 to 4 parts of aromatic master batch, 14 to 18 parts of coloring master batch, 0.5 to 1 part of antioxidant, 1 to 2 parts of plasticizer, 1 to 3 parts of flame retardant, 0.2 to 0.5 part of ultraviolet absorber and 0.6 to 1 part of antistatic agent.
Preferably, the carbide is one or more than two of molybdenum carbide, tungsten carbide, chromium carbide and vanadium carbide.
Preferably, the carbide is a combination of molybdenum carbide and tungsten carbide, and the proportion of the molybdenum carbide to the tungsten carbide is 1:1-3.
Preferably, the elastomer is a TPE elastomer.
Preferably, the antioxidant is one of hindered phenols, aromatic amines, phosphites and sulfur-containing esters.
Preferably, the plasticizer is one of dioctyl phthalate (DOP), butyl Benzyl Phthalate (BBP), di-sec-octyl phthalate (DCP), diethyl phthalate (DEP), diisobutyl phthalate (DIBP), dimethyl phthalate (DMP), dicyclohexyl phthalate (DCHP) and diisodecyl phthalate (DIDP).
Preferably, the flame retardant is one of magnesium hydroxide, aluminum hydroxide, phosphate (TDCPP), ammonium polyphosphate, octabromoether, triphenyl phosphate, hexabromocyclododecane, MPP, zinc borate, decabromodiphenylethane, decabromodiphenylether.
Preferably, the ultraviolet absorber is one of phenyl salicylate, ultraviolet absorber UV-P, ultraviolet absorber UV-O, ultraviolet absorber UV-9, ultraviolet absorber UV-531, ultraviolet absorber UVP-327, light stabilizer AM-101, light stabilizer GW-540.
Preferably, the antistatic agent is one of octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate (SN), triethanolamine (TM), stearamidopropyl dimethyl beta hydroxyethyl ammonium dihydrogen phosphate (SP), dodecyl dihydroxypropyl methyl sulfate amine (SH-105), nonylphenol (NP), potassium p-nonyldiphenyl ether sulfonate (DPE), fatty alcohol polyoxyethylene ether and dodecyl dimethyl betaine.
The invention also provides a preparation method of the high-strength flame-retardant artificial grass filaments, which comprises the following steps:
(1) Adding polyoxyethylene, silicon dioxide, titanium dioxide, molybdenum carbide, tungsten carbide, TPE elastomer and coloring master batch into a stirring kettle, uniformly blending, and stirring at 200-210 ℃ for 40-50 min at the speed of 200-250 r/min to obtain a mixture;
(2) Setting the extrusion temperature to 160-180 ℃, extruding the mixture through a double-screw extruder, drawing strips, and granulating to obtain grass silk master batch;
(3) Setting the temperature of the melting stock to 245-250 ℃, adding the grass yarn master batch, polyolefin, aromatic master batch, antioxidant 1076, butyl benzyl phthalate, ammonium polyphosphate, ultraviolet absorbent UV-531 and triethanolamine into a screw extruder for mixing, melting, extruding, stretching, shaping, doffing and twisting to obtain the artificial grass yarn.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, by adding the carbide combination, the mechanical properties such as strength, elongation at break and the like of the artificial grass yarns can be effectively improved, the abrasion loss and rebound resilience of the grass yarns are improved, and meanwhile, the artificial grass yarns also have certain flame retardant property.
2. The raw materials of the invention are abundant in China and have proper price, so that the large-scale production of the invention has no high cost limit; meanwhile, the preparation method is simple, the overall production cost is low, and the method is beneficial to industrial mass production.
Detailed Description
Example 1
The specific raw materials are weighed according to table 1, and the preparation steps are as follows:
(1) Adding polyoxyethylene, silicon dioxide, titanium dioxide, molybdenum carbide, tungsten carbide, TPE elastomer and coloring master batch into a stirring kettle, uniformly blending, and stirring at 200 ℃ for 50min at the speed of 200r/min to obtain a mixture;
(2) Setting the extrusion temperature to 160 ℃, extruding the mixture through a double-screw extruder, drawing, and granulating to obtain grass silk master batch;
(3) Setting the temperature of the melting stock at 250 ℃, adding the grass yarn master batch, polyolefin, aromatic master batch, antioxidant 1076, butyl benzyl phthalate, ammonium polyphosphate, ultraviolet absorbent UV-531 and triethanolamine into a screw extruder for mixing, melting, extruding, stretching, shaping, doffing, and twisting to obtain the artificial grass yarn.
Example 2
The specific raw materials are weighed according to table 1, and the preparation steps are as follows:
(1) Adding polyoxyethylene, silicon dioxide, titanium dioxide, molybdenum carbide, tungsten carbide, TPE elastomer and coloring master batch into a stirring kettle, uniformly blending, and stirring at 210 ℃ for 40min at the speed of 250r/min to obtain a mixture;
(2) Setting the extrusion temperature to 180 ℃, extruding the mixture through a double-screw extruder, drawing and granulating to obtain grass silk master batch;
(3) Setting the temperature of the melting stock at 245 ℃, adding the grass yarn master batch, polyolefin, aromatic master batch, antioxidant 1076, butyl benzyl phthalate, ammonium polyphosphate, ultraviolet absorbent UV-531 and triethanolamine into a screw extruder for mixing, melting, extruding, stretching, shaping, doffing, and twisting to obtain the artificial grass yarn.
Example 3
The specific raw materials are weighed according to table 1, and the preparation steps are as follows:
(1) Adding polyoxyethylene, silicon dioxide, titanium dioxide, molybdenum carbide, tungsten carbide, TPE elastomer and coloring master batch into a stirring kettle, uniformly blending, and stirring at 210 ℃ for 50min at the speed of 250r/min to obtain a mixture;
(2) Setting the extrusion temperature to 180 ℃, extruding the mixture through a double-screw extruder, drawing and granulating to obtain grass silk master batch;
(3) Setting the temperature of the melting stock at 250 ℃, adding the grass yarn master batch, polyolefin, aromatic master batch, antioxidant 1076, butyl benzyl phthalate, ammonium polyphosphate, ultraviolet absorbent UV-531 and triethanolamine into a screw extruder for mixing, melting, extruding, stretching, shaping, doffing, and twisting to obtain the artificial grass yarn.
Comparative example 1
Specific raw materials were weighed according to table 1, and unlike example 3, tungsten carbide was vanadium carbide, and the remaining steps were prepared as follows:
(1) Adding polyoxyethylene, silicon dioxide, titanium dioxide, vanadium carbide, TPE elastomer and coloring master batch into a stirring kettle, uniformly blending, and stirring at 210 ℃ for 50min at the speed of 250r/min to obtain a mixture;
(2) Setting the extrusion temperature to 180 ℃, extruding the mixture through a double-screw extruder, drawing and granulating to obtain grass silk master batch;
(3) Setting the temperature of the melting stock at 250 ℃, adding the grass yarn master batch, polyolefin, aromatic master batch, antioxidant 1076, butyl benzyl phthalate, ammonium polyphosphate, ultraviolet absorbent UV-531 and triethanolamine into a screw extruder for mixing, melting, extruding, stretching, shaping, doffing, and twisting to obtain the artificial grass yarn.
Comparative example 2
The specific raw materials were weighed according to table 1, and the carbide was chromium carbide, which was prepared by the following steps, unlike example 3:
(1) Adding polyoxyethylene, silicon dioxide, titanium dioxide, chromium carbide, TPE elastomer and coloring master batch into a stirring kettle, uniformly blending, and stirring at 210 ℃ for 50min at the speed of 250r/min to obtain a mixture;
(2) Setting the extrusion temperature to 180 ℃, extruding the mixture through a double-screw extruder, drawing and granulating to obtain grass silk master batch;
(3) Setting the temperature of the melting stock at 250 ℃, adding the grass yarn master batch, polyolefin, aromatic master batch, antioxidant 1076, butyl benzyl phthalate, ammonium polyphosphate, ultraviolet absorbent UV-531 and triethanolamine into a screw extruder for mixing, melting, extruding, stretching, shaping, doffing, and twisting to obtain the artificial grass yarn.
Comparative example 3
Specific raw materials were weighed according to table 1, and unlike example 3, the carbide was molybdenum carbide, and the remaining steps were prepared as follows:
(1) Adding polyoxyethylene, silicon dioxide, titanium dioxide, molybdenum carbide, TPE elastomer and coloring master batch into a stirring kettle, uniformly blending, and stirring at 210 ℃ for 50min at the speed of 250r/min to obtain a mixture;
(2) Setting the extrusion temperature to 180 ℃, extruding the mixture through a double-screw extruder, drawing and granulating to obtain grass silk master batch;
(3) Setting the temperature of the melting stock at 250 ℃, adding the grass yarn master batch, polyolefin, aromatic master batch, antioxidant 1076, butyl benzyl phthalate, ammonium polyphosphate, ultraviolet absorbent UV-531 and triethanolamine into a screw extruder for mixing, melting, extruding, stretching, shaping, doffing, and twisting to obtain the artificial grass yarn.
Comparative example 4
Specific raw materials were weighed according to table 1, and unlike example 3, the carbide was tungsten carbide, and the remaining steps were prepared as follows:
(1) Adding polyoxyethylene, silicon dioxide, titanium dioxide, tungsten carbide, TPE elastomer and coloring master batch into a stirring kettle, uniformly blending, and stirring at the speed of 250r/min for 50min at the temperature of 210 ℃ to obtain a mixture;
(2) Setting the extrusion temperature to 180 ℃, extruding the mixture through a double-screw extruder, drawing and granulating to obtain grass silk master batch;
(3) Setting the temperature of the melting stock at 250 ℃, adding the grass yarn master batch, polyolefin, aromatic master batch, antioxidant 1076, butyl benzyl phthalate, ammonium polyphosphate, ultraviolet absorbent UV-531 and triethanolamine into a screw extruder for mixing, melting, extruding, stretching, shaping, doffing, and twisting to obtain the artificial grass yarn.
TABLE 1
Evaluation of mechanical Properties and fireproof Properties
Weaving the artificial grass filaments prepared in the prepared examples 1-3 and the artificial grass filaments prepared in the prepared comparative examples 1-4 and a base fabric (PP+leno base fabric) into turf, and finally gluing the turf by a back glue setting machine to prepare the antibacterial artificial turf; the test was carried out using diamond monofilaments of the standard (grass height 50mm, row spacing 5/8 inch, needle density 15 needles/cm) according to GB/T20394-2006 national Standard for Artificial grass for sports. The combustion performance and the amount of candles were evaluated in accordance with the requirements of ISO 5660:2015. Test items and results are shown in table 2.
Examples 1 to 3 and comparative examples 3 and 4 were placed in an atmosphere of-15℃for 10 hours, and then the mechanical properties were measured according to the above-described method. Test items and results are shown in table 3.
TABLE 2
TABLE 3 Table 3
| Sample of | Intensity of grass yarn N | Elongation at break% | The abrasion loss of grass filaments is% | Rebound resilience of grass yarn |
| Example 1 | 122 | 223 | 4 | No obvious deformation |
| Example 2 | 125 | 235 | 3 | No obvious deformation |
| Example 3 | 123 | 242 | 2 | No obvious deformation |
| Comparative example 3 | 101 | 215 | 12 | Twisting |
| Comparative example 4 | 95 | 194 | 9 | Slightly distorted |
The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (7)
1. The high-strength flame-retardant artificial grass yarn is characterized by comprising the following raw materials in parts by weight: 90-100 parts of polyoxyethylene, 7-9 parts of silicon dioxide, 3-5 parts of titanium dioxide, 6-12 parts of carbide, 5-8 parts of elastomer, 2-4 parts of aromatic master batch, 14-18 parts of coloring master batch, 0.5-1 part of antioxidant, 1-2 parts of plasticizer, 1-3 parts of flame retardant, 0.2-0.5 part of ultraviolet absorber and 0.6-1 part of antistatic agent;
the carbide is a combination of molybdenum carbide and tungsten carbide, and the proportion of the molybdenum carbide to the tungsten carbide is 1:1-3;
the elastomer is TPE elastomer.
2. An artificial grass filament according to claim 1, wherein the antioxidant is one of hindered phenols, aromatic amines, phosphites, sulphur-containing esters.
3. The artificial grass filament of claim 1, wherein the plasticizer is one of dioctyl phthalate (DOP), butyl Benzyl Phthalate (BBP), di-sec-octyl phthalate (DCP), diethyl phthalate (DEP), diisobutyl phthalate (DIBP), dimethyl phthalate (DMP), dicyclohexyl phthalate (DCHP) diisodecyl phthalate (DIDP).
4. The artificial grass filament of claim 1, wherein the flame retardant is one of magnesium hydroxide, aluminum hydroxide, phosphate (TDCPP), ammonium polyphosphate, octabromoether, triphenyl phosphate, hexabromocyclododecane, MPP, zinc borate, decabromodiphenylethane, decabromodiphenylether.
5. The artificial grass filament of claim 1, wherein the ultraviolet absorber is one of phenyl salicylate, ultraviolet absorber UV-P, ultraviolet absorber UV-O, ultraviolet absorber UV-9, ultraviolet absorber UV-531, ultraviolet absorber UVP-327, light stabilizer AM-101, light stabilizer GW-540.
6. The artificial grass filaments of claim 1, wherein the antistatic agent is one of octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate (SN), triethanolamine (TM), stearamidopropyl dimethyl beta hydroxyethyl ammonium dihydrogen phosphate (SP), dodecyl dihydroxypropyl methyl sulfate amine (SH-105), nonylphenol (NP), potassium p-nonyldiphenyl ether sulfonate (DPE), fatty alcohol polyoxyethylene ether, dodecyl dimethyl betaine.
7. A method of making an artificial grass strand as claimed in any one of claims 1 to 6, comprising the steps of: (1) Adding polyoxyethylene, silicon dioxide, titanium dioxide, molybdenum carbide, tungsten carbide, TPE elastomer and coloring master batch into a stirring kettle, uniformly blending, and stirring at 200-210 ℃ for 40-50 min at the speed of 200-250 r/min to obtain a mixture;
(2) Setting the extrusion temperature to 160-180 ℃, extruding the mixture through a double-screw extruder, drawing strips, and granulating to obtain grass silk master batches;
(3) And setting the temperature of the melting stock at 245-250 ℃, adding the grass yarn master batch, polyolefin, aromatic master batch, antioxidant 1076, butyl benzyl phthalate, ammonium polyphosphate, ultraviolet absorbent UV-531 and triethanolamine into a screw extruder, mixing, melting, extruding, stretching, shaping, doffing, and twisting to obtain the artificial grass yarn.
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| IT201800006815A1 (en) * | 2018-06-29 | 2019-12-29 | AN ORGANIC-INORGANIC HYBRID MATERIAL COMPRISING A METAL AND LIGNIN, PROCESSES FOR PREPARING THE SAME AND USES THEREOF / HYBRID ORGANIC-INORGANIC MATERIAL INCLUDING METAL AND LIGNIN, PROCESSES FOR ITS PREPARATION AND USES |
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| CN110139961A (en) * | 2016-09-19 | 2019-08-16 | 美世国际有限公司 | Absorbent paper product with unique physical intensity property |
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