CN114687066A - Degradable oil absorption material and preparation method thereof - Google Patents
Degradable oil absorption material and preparation method thereof Download PDFInfo
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- CN114687066A CN114687066A CN202011639533.6A CN202011639533A CN114687066A CN 114687066 A CN114687066 A CN 114687066A CN 202011639533 A CN202011639533 A CN 202011639533A CN 114687066 A CN114687066 A CN 114687066A
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- 239000000463 material Substances 0.000 title claims abstract description 31
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title abstract description 11
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 32
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 16
- 239000003607 modifier Substances 0.000 claims abstract description 16
- 229920001896 polybutyrate Polymers 0.000 claims abstract description 15
- 239000000440 bentonite Substances 0.000 claims abstract description 13
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims description 52
- 238000010438 heat treatment Methods 0.000 claims description 37
- 238000002156 mixing Methods 0.000 claims description 23
- 229920000728 polyester Polymers 0.000 claims description 20
- 238000002844 melting Methods 0.000 claims description 18
- 230000008018 melting Effects 0.000 claims description 18
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 14
- 229940092782 bentonite Drugs 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 12
- 238000007596 consolidation process Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 238000005098 hot rolling Methods 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000011358 absorbing material Substances 0.000 claims description 5
- 229910000281 calcium bentonite Inorganic materials 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 3
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 2
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 claims description 2
- ONCZQWJXONKSMM-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical compound O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] ONCZQWJXONKSMM-UHFFFAOYSA-N 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 229910000280 sodium bentonite Inorganic materials 0.000 claims description 2
- 229940080314 sodium bentonite Drugs 0.000 claims description 2
- 239000000600 sorbitol Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 30
- 239000002131 composite material Substances 0.000 description 25
- 239000003921 oil Substances 0.000 description 22
- 230000000052 comparative effect Effects 0.000 description 10
- 238000007664 blowing Methods 0.000 description 6
- 239000000155 melt Substances 0.000 description 6
- 239000004745 nonwoven fabric Substances 0.000 description 6
- 238000009987 spinning Methods 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000289 melt material Substances 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
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- 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
- D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
-
- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
-
- 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
- D04H1/542—Adhesive fibres
- D04H1/55—Polyesters
-
- 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
- D04H1/558—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 in combination with mechanical or physical treatments other than embossing
-
- 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
- D04H3/005—Synthetic yarns or filaments
- D04H3/009—Condensation or reaction polymers
- D04H3/011—Polyesters
-
- 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
- D04H3/147—Composite yarns or filaments
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/12—Physical properties biodegradable
Abstract
The invention discloses a degradable oil absorption material and a preparation method thereof, wherein the oil absorption material is prepared from the following raw materials in parts by weight: 0-20 parts of PLA, 45-90 parts of PBAT, 10-20 parts of calcium carbonate, 1-5 parts of bentonite and 3-10 parts of a modifier, and provides a preparation method of the oil absorption material. The prepared oil absorption material has good oil absorption performance, can be recycled, is biodegradable, does not cause secondary pollution, is environment-friendly and is convenient to prepare.
Description
Technical Field
The invention relates to an oil absorption material and a preparation method thereof, in particular to a degradable oil absorption material and a preparation method thereof.
Background
The oil needs many steps during transportation, and the oil leaks out on land or in water due to misoperation, accidents or other reasons. In daily life, a large amount of oily wastewater is generated, such as petroleum refining process, oil tank cleaning, catering industry, food processing industry and the like, and when the oily wastewater is not treated properly, the oily wastewater is mixed in sewage and discharged into rivers, so that the environment of an eroded water area is seriously polluted, and the ecological balance is damaged.
The traditional treatment mode mainly adopts natural materials and chemical synthetic materials. The oil absorption material is prepared by modifying polypropylene by adopting silicon dioxide, the oil absorption multiple is 15 times of the weight of the oil absorption material, CN105908375 adopts polyphenylene sulfide and polypropylene to prepare the oil absorption material by blending, and CN109468752 adopts polypropylene to prepare a multilayer spun melt material for removing oil stains and has a good oil stain removal effect. But the materials such as polypropylene, polyphenylene sulfide and the like are not easy to degrade, and the subsequent treatment is easy to cause secondary pollution.
Disclosure of Invention
The purpose of the invention is as follows: the first purpose of the invention is to provide a degradable oil material which has better oil absorption performance, can be recycled, can be biodegraded, does not cause secondary pollution and is environment-friendly, and the second purpose of the invention is to provide a preparation method of the degradable oil material.
The technical scheme is as follows: the degradable oil absorption material is prepared from the following raw materials in parts by weight: 0-20 parts of PLA, 45-90 parts of PBAT, 10-20 parts of calcium carbonate, 1-5 parts of bentonite and 3-10 parts of modifier.
Furthermore, the calcium carbonate is nano calcium carbonate, and the particle size range of the nano calcium carbonate is 20-300 nm. The modifier is one of sorbitol, ethylene glycol, butanediol or glycerol. The bentonite is one or more of sodium bentonite, calcium bentonite or organic bentonite. The degradable oil absorption material is melt-blown cloth which comprises biodegradable fibers with the average diameter of 0.1-20 mu m, and the oil absorption weight is 10-20 times of the self-body.
The preparation method of the degradable oil material comprises the following steps:
(1) mixing PLA, PBAT and a modifier, reacting and extruding at 180 ℃ at 150-;
(2) drying the modified polyester at 80-100 ℃, mixing with calcium carbonate and bentonite, heating and melting, extruding, drawing to form nascent fiber, cooling the nascent fiber to form a net, rolling, and spraying to form the degradable oil absorption material. Degradable oil-absorbing material 10-200g/m2。
Further, in the step (2), the heating temperatures for heating and melting are respectively as follows: the feed zone is 180-. In the step (2), the extrusion temperature is consistent with the temperature of the heating and melting compression zone. The temperature of the hot air for drafting is 250-290 ℃; the length-diameter ratio of a spinneret plate used for spraying is 10: 1-25: 1.
in the step (3), the net is subjected to heat treatment at 100-110 ℃ to enable fibers in the net to be in a three-dimensional random curling structure, and then the composite fiber net subjected to heat treatment is subjected to hot rolling consolidation at 100-110 ℃ to obtain the degradable oil absorption material. Wherein the heat treatment mode is one of hot air treatment or infrared radiation treatment. PLA, PBAT are selected from commercially available products.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: the prepared melt-blown material has good oil absorption performance, can be recycled, is biodegradable, does not cause secondary pollution, is environment-friendly and is convenient to prepare.
Detailed Description
The PLA, PBAT used in the examples were selected from commercially available products. The technical solution of the present invention is further illustrated by the following examples.
Example 1
Uniformly mixing 20 parts of PLA, 45 parts of PBAT and 10 parts of modifier, uniformly mixing by a double-screw extruder, reacting, extruding, cooling and granulating to obtain the modified polyester with the melt index of 3000 g/min. The extrusion temperature was 150 ℃.
Drying the mixture of modified polyester at 80 ℃ for 4h, uniformly mixing the modified polyester with 20 parts of calcium carbonate and 5 parts of bentonite, feeding the mixture into a double-screw extruder, heating and melting the mixture, extruding the mixture through a spinneret plate, drafting the mixture at a high speed through hot air flow to form nascent fiber, cooling the nascent fiber through cold air to form a web, and rolling the web. The heating temperature of the screw of the melt-blowing equipment is respectively as follows: the feeding zone is 180 ℃, the melting zone is 210 ℃, the compression zone is 210 ℃, the temperature of the spinning machine box body is consistent with the temperature of the compression zone, and the temperature of the drafting hot air is 250 ℃.
Carrying out heat treatment on the melt-blown composite fiber web at 100 ℃ for 3 minutes to enable fibers in the melt-blown composite fiber web to be in a three-dimensional random crimp structure, and then carrying out hot rolling consolidation on the heat-treated composite fiber web at 100 ℃ by adopting a hot roller to obtain the melt-blown composite fiber oil-absorbing non-woven fabric; wherein the heat treatment mode is hot air treatment.
Example 2
Uniformly mixing 90 parts of PBAT and 4 parts of a modifier, uniformly mixing the mixture by a double-screw extruder, performing reaction extrusion, cooling and granulating to obtain the modified polyester with the melt index of 1500 g/min. The extrusion temperature was 180 ℃.
Drying the mixture of modified polyester at90 ℃ for 4h, uniformly mixing the modified polyester with 5 parts of calcium carbonate and 1 part of bentonite, feeding the mixture into a double-screw extruder, heating and melting the mixture, extruding the mixture through a spinneret plate, drafting the mixture at a high speed through hot air flow to form nascent fiber, cooling the nascent fiber through cold air to form a web, and rolling the web. The heating temperature of the screw of the melt-blowing equipment is respectively as follows: the feeding zone is 180 ℃, the melting zone is 210 ℃, the compression zone is 250 ℃, the temperature of the spinning machine box body is consistent with that of the compression zone, and the temperature of the drafting hot air is 290 ℃.
Carrying out heat treatment on the melt-blown composite fiber web at 100 ℃ for 5 minutes to enable fibers in the melt-blown composite fiber web to be in a three-dimensional random crimp structure, and then carrying out hot rolling consolidation on the heat-treated composite fiber web at 100 ℃ by adopting a hot roller to obtain a melt-blown composite fiber oil-absorbing non-woven fabric; wherein the heat treatment is infrared radiation treatment.
Example 3
Uniformly mixing 84 parts of PBAT and 3 parts of modifier, uniformly mixing by a double-screw extruder, reacting, extruding, cooling and granulating to obtain the modified polyester with the melt index of 300 g/min. The extrusion temperature was 160 ℃.
Drying the mixture of modified polyester at 100 ℃ for 3h, uniformly mixing the modified polyester with 10 parts of calcium carbonate and 4 parts of bentonite, feeding the mixture into a double-screw extruder, heating and melting the mixture, extruding the mixture through a spinneret plate, drafting the mixture at a high speed through hot air flow to form nascent fiber, cooling the nascent fiber through cold air to form a web, and rolling the web. The heating temperature of the screw of the melt-blowing equipment is respectively as follows: the feeding zone is 180 ℃, the melting zone is 210 ℃, the compression zone is 220 ℃, the temperature of the spinning machine box body is consistent with that of the compression zone, and the temperature of the drawing hot air is 260 ℃.
Carrying out heat treatment on the melt-blown composite fiber web at 100 ℃ for 3 minutes to enable fibers in the melt-blown composite fiber web to be in a three-dimensional random crimp structure, and then carrying out hot rolling consolidation on the heat-treated composite fiber web at 100 ℃ by adopting a hot roller to obtain the melt-blown composite fiber oil-absorbing non-woven fabric; wherein the heat treatment is infrared radiation treatment.
Example 4
Uniformly mixing 10 parts of PLA, 70 parts of PBAT and 8 parts of modifier, uniformly mixing by a double-screw extruder, reacting, extruding, cooling and granulating to obtain the modified polyester with the melt index of 1500 g/min. The extrusion temperature was 160 ℃.
Drying the mixture of modified polyester at85 ℃ for 4h, uniformly mixing the modified polyester with 8 parts of calcium carbonate and 4 parts of bentonite, feeding the mixture into a double-screw extruder, heating and melting the mixture, extruding the mixture through a spinneret plate, drafting the mixture at a high speed through hot air flow to form nascent fiber, cooling the nascent fiber through cold air to form a web, and rolling the web. The heating temperature of the screw of the melt-blowing equipment is respectively as follows: the feeding zone is 180 ℃, the melting zone is 210 ℃, the compression zone is 230 ℃, the temperature of the spinning machine box body is consistent with that of the compression zone, and the temperature of the drafting hot air is 280 ℃.
Carrying out heat treatment on the melt-blown composite fiber web at 100 ℃ for 5 minutes to enable fibers in the melt-blown composite fiber web to be in a three-dimensional random crimp structure, and then carrying out hot rolling consolidation on the heat-treated composite fiber web at 100 ℃ by adopting a hot roller to obtain the melt-blown composite fiber oil-absorbing non-woven fabric; wherein the heat treatment mode is infrared radiation treatment.
Comparative example 1
Uniformly mixing 90 parts of PBAT and 10 parts of modifier, uniformly mixing by a double-screw extruder, reacting, extruding, cooling and granulating to obtain the modified polyester with the melt index of 1000 g/min. The extrusion temperature was 160 ℃.
Drying the mixture of the modified polyester at 100 ℃ for 3h, feeding the modified polyester into a double-screw extruder, heating and melting the mixture, extruding the mixture through a spinneret plate, drafting the mixture at high speed through hot air flow to form nascent fiber, cooling the nascent fiber through cold air to form a web, and rolling the web. The heating temperature of the screw of the melt-blowing equipment is respectively as follows: the feeding zone is 180 ℃, the melting zone is 210 ℃, the compression zone is 210 ℃, the temperature of the spinning machine box body is consistent with the temperature of the compression zone, and the temperature of the drafting hot air is 250 ℃.
Carrying out heat treatment on the melt-blown composite fiber web at 100 ℃ for 3 minutes to enable fibers in the melt-blown composite fiber web to be in a three-dimensional random crimp structure, and then carrying out hot rolling consolidation on the heat-treated composite fiber web at 100 ℃ by adopting a hot roller to obtain the melt-blown composite fiber oil-absorbing non-woven fabric; wherein the heat treatment mode is hot air treatment.
Comparative example 2
Uniformly mixing 85 parts of PBAT and 5 parts of a modifier, uniformly mixing the mixture by a double-screw extruder, performing reaction extrusion, cooling and granulating to obtain the modified polyester with the melt index of 1000 g/min. The extrusion temperature was 160 ℃.
Drying the mixture of modified polyester at 100 ℃ for 4h, uniformly mixing the modified polyester with 10 parts of calcium carbonate, heating and melting in a double-screw extruder, extruding by a spinneret plate, drafting at high speed by hot air flow to form nascent fiber, cooling the nascent fiber by cold air to form a net, and rolling.
The heating temperature of the screw of the melt-blowing equipment is respectively as follows: the feeding zone is 180 ℃, the melting zone is 210 ℃, the compression zone is 210 ℃, the temperature of the spinning machine box body is consistent with the temperature of the compression zone, and the temperature of the drafting hot air is 250 ℃.
Carrying out heat treatment on the melt-blown composite fiber web at 100 ℃ for 3 minutes to enable fibers in the melt-blown composite fiber web to be in a three-dimensional random crimp structure, and then carrying out hot rolling consolidation on the heat-treated composite fiber web at 100 ℃ by adopting a hot roller to obtain the melt-blown composite fiber oil-absorbing non-woven fabric; wherein the heat treatment mode is hot air treatment.
Comparative example 3
No modifier was added in this comparative example, and the other raw materials, the compounding ratio, the preparation method and the detection method were the same as those in example 1.
Comparative example 4
In the comparative example, the extrusion temperature of the mixture of PLA, PBAT and the modifier was 145 ℃, and the other raw materials, the mixture ratio, the preparation method and the detection method were the same as those in example 1.
Comparative example 5
In the comparative example, the extrusion temperature after mixing PLA, PBAT and the modifier was 185 ℃, and the other raw materials, the mixture ratio, the preparation method and the detection method were the same as those in example 1.
Table 1 shows the weight ratio of the raw materials in each example and comparative example, and Table 2 shows the performance parameters of the materials prepared in each example and comparative example.
TABLE 1
TABLE 2
Claims (10)
1. The degradable oil absorption material is characterized by comprising the following raw material components in parts by weight: 0-20 parts of PLA, 45-90 parts of PBAT, 10-20 parts of calcium carbonate, 1-5 parts of bentonite and 3-10 parts of modifier.
2. The degradable oil absorbing material of claim 1, wherein: the calcium carbonate is nano calcium carbonate, and the particle size range of the nano calcium carbonate is 20-300 nm.
3. The degradable oil absorbing material of claim 1, wherein: the modifier is one of sorbitol, ethylene glycol, butanediol or glycerol.
4. The degradable oil absorbing material of claim 1, wherein: the bentonite is one or more of sodium bentonite, calcium bentonite or organic bentonite.
5. The degradable oil absorbing material of claim 1, wherein: the degradable oil absorption material is melt-blown cloth which comprises biodegradable fibers with the average diameter of 0.1-20 mu m, and the oil absorption weight is 10-20 times of the biodegradable fibers.
6. A method for preparing the degradable oil material according to claim 1, which comprises the following steps:
(1) mixing PLA, PBAT and a modifier, reacting and extruding at 180 ℃ at 150-;
(2) drying the modified polyester at 80-100 ℃, mixing with calcium carbonate and bentonite, heating and melting, extruding, drafting to form nascent fiber, cooling the nascent fiber to form a net, rolling, and spraying to form the degradable oil absorption material.
7. The method for preparing the degradable oil material according to claim 6, wherein in the step (2), the heating temperatures for the heating and melting are respectively: the feed zone is 180-.
8. The method for preparing a degradable oil material according to claim 6, wherein: in the step (2), the extrusion temperature is consistent with the temperature of the heating and melting compression zone.
9. The method for preparing a degradable oil material according to claim 6, wherein: in the step (2), the temperature of the hot air for drafting is 250-290 ℃.
10. The method for preparing a degradable oil material according to claim 6, wherein: in the step (2), the net is subjected to heat treatment at 100-110 ℃ to enable fibers in the net to be in a three-dimensional random coiled structure, and then the net subjected to heat treatment is subjected to hot rolling consolidation at 100-110 ℃ to obtain the degradable oil absorption material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011639533.6A CN114687066A (en) | 2020-12-31 | 2020-12-31 | Degradable oil absorption material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011639533.6A CN114687066A (en) | 2020-12-31 | 2020-12-31 | Degradable oil absorption material and preparation method thereof |
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| CN114687066A true CN114687066A (en) | 2022-07-01 |
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