CN112709005A - Preparation method of high-oil-absorption melt-blown non-woven fabric - Google Patents
Preparation method of high-oil-absorption melt-blown non-woven fabric Download PDFInfo
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- CN112709005A CN112709005A CN202011525540.3A CN202011525540A CN112709005A CN 112709005 A CN112709005 A CN 112709005A CN 202011525540 A CN202011525540 A CN 202011525540A CN 112709005 A CN112709005 A CN 112709005A
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- melt
- woven fabric
- polypropylene
- oil absorption
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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
- D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
-
- 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
- D04H1/56—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 association with fibre formation, e.g. immediately following extrusion of staple fibres
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
Abstract
The invention provides a preparation method of a high oil absorption melt-blown non-woven fabric, which comprises the following steps: vacuum drying 40-60 parts by weight of polypropylene master batch and 10-20 parts by weight of polylactic acid master batch; premixing the dried polypropylene master batch and polylactic acid master batch with 10-20 parts by weight of polypropylene-glycidyl methacrylate graft copolymer, and then carrying out melt blending granulation by a double-screw extruder; finally, the high oil absorption melt-blown non-woven fabric is obtained through a melt-blowing process. The melt-blown non-woven fabric prepared by the method has high oil absorption rate and oil retention rate, and the non-woven fabric has good toughness and strong impact resistance.
Description
Technical Field
The invention belongs to the field of non-woven fabric processing, and particularly relates to a preparation method of a high-oil-absorption melt-blown non-woven fabric.
Background
With the development of the marine transportation industry, the problem of offshore oil leakage is increased. The petroleum leakage not only causes great economic loss, but also causes serious environmental pollution. In the process of offshore spilled oil treatment, the method for recovering the spilled oil on the sea surface by using the oil absorption material is a simple and effective method which is frequently adopted at present. There are many substances used for oil absorbing materials, mainly including polymer synthetic materials, natural fiber materials and inorganic materials.
Melt blowing is a non-woven production technology for stretching and thinning high polymer melt by using high-speed and high-temperature air. The melt-blown polypropylene non-woven fabric is a novel high-efficiency pollution-free oil absorption material developed in recent years, has a large specific surface area and high porosity, can float on the water surface for a long time after oil absorption, and does not change the shape, and the melt-blown polypropylene non-woven fabric is made into oil absorption cables, oil absorption chains, oil absorption pillows and the like, and the oil absorption amount can reach 10-20 times of the self weight. However, due to the limitation of capillary adsorption, the high oil absorption material is still not high, and oil leakage is easy to occur under certain pressure, so that the further application of the melt-blown polypropylene non-woven fabric as the oil absorption material is limited.
Disclosure of Invention
The invention provides a preparation method of a high oil absorption melt-blown non-woven fabric, the melt-blown non-woven fabric prepared by the method has high oil absorption rate and oil retention rate, and the non-woven fabric has good toughness and strong impact resistance.
The technical scheme of the invention is as follows:
the invention provides a preparation method of a high oil absorption melt-blown non-woven fabric, which comprises the following steps: vacuum drying 40-60 parts by weight of polypropylene master batch and 10-20 parts by weight of polylactic acid master batch; premixing the dried polypropylene master batch and polylactic acid master batch with 10-20 parts by weight of polypropylene-glycidyl methacrylate graft copolymer, and then carrying out melt blending granulation by a double-screw extruder; finally, the high oil absorption melt-blown non-woven fabric is obtained through a melt-blowing process.
Preferably, the weight ratio of the polypropylene master batch to the polylactic acid master batch to the polypropylene-glycidyl methacrylate graft copolymer is 45:15: 10.
Preferably, the vacuum drying temperature is 80-90 ℃ and the time is 15-18 h.
Preferably, the melt blending granulation temperature of the double-screw extruder is 190-200 ℃.
Preferably, the melt-blown process parameters are: the hot air pressure is 0.08-0.15MPa, the hot air temperature is 250-.
Preferably, the preparation method of the polypropylene-glycidyl methacrylate graft copolymer comprises the following steps: uniformly mixing 80-100 parts by weight of polypropylene powder, 1-3 parts by weight of glycidyl methacrylate and 0.03-0.05 part by weight of benzoyl peroxide, and carrying out melt grafting reaction for 5-10min at the temperature of 175-.
Has the advantages that:
(1) according to the invention, a certain amount of polypropylene-glycidyl methacrylate graft copolymer is added into the polypropylene master batch and the polylactic acid master batch with a specific ratio, so that the compatibility of polypropylene and polylactic acid is enhanced, and the polypropylene-glycidyl methacrylate graft copolymer contains lipophilic groups, so that the adsorption effect of the polymer can be improved.
(2) The melt-blown non-woven fabric prepared by the specific melt-blown process has high oil absorption, excellent oil retention performance and good mechanical property.
Detailed Description
Hereinafter, the technical solution of the present invention will be described in detail by specific examples, but these examples should be explicitly proposed for illustration, but should not be construed as limiting the scope of the present invention.
Example 1
The preparation of the polypropylene-glycidyl methacrylate graft copolymer comprises the steps of uniformly mixing 80 parts of polypropylene powder, 1 part of glycidyl methacrylate and 0.03 part of benzoyl peroxide, and carrying out melt grafting reaction for 5min at the temperature of 175 ℃ and the rotating speed of 80r/min to obtain the polypropylene-glycidyl methacrylate graft copolymer.
Preparing the high oil absorption melt-blown non-woven fabric: vacuum drying 40 parts of polypropylene master batch and 10 parts of polylactic acid master batch at 80 ℃ for 18 h; premixing the dried polypropylene master batch and polylactic acid master batch with 10 parts of polypropylene-glycidyl methacrylate graft copolymer for 5min, and then carrying out melt blending granulation by a double-screw extruder, wherein the melt blending granulation temperature of the double-screw extruder is 190 ℃; finally, the high oil absorption melt-blown non-woven fabric is obtained through a melt-blowing process.
Wherein, the melt-blown process parameters are as follows: the hot air pressure is 0.08Mpa, the hot air temperature is 250 ℃, the filter screen temperature is 220 ℃, the metering pump temperature is 220 ℃, the spray head temperature is 220 ℃, the extruder temperature is 200 ℃, and the receiving distance is 20 cm.
Example 2
The preparation method of the polypropylene-glycidyl methacrylate graft copolymer comprises the steps of uniformly mixing 100 parts of polypropylene powder, 3 parts of glycidyl methacrylate and 0.05 part of benzoyl peroxide, and carrying out melt grafting reaction for 10min at the temperature of 185 ℃ and the rotating speed of 100r/min to obtain the polypropylene-glycidyl methacrylate graft copolymer.
Preparing the high oil absorption melt-blown non-woven fabric: vacuum drying 45 parts of polypropylene master batch and 15 parts of polylactic acid master batch at 85 ℃ for 16 h; premixing the dried polypropylene master batch and the dried polylactic acid master batch with 10 parts of polypropylene-glycidyl methacrylate graft copolymer for 5min, and then carrying out melt blending granulation by a double-screw extruder at the temperature of 195 ℃; finally, the high oil absorption melt-blown non-woven fabric is obtained through a melt-blowing process.
Wherein, the melt-blown process parameters are as follows: the hot air pressure is 0.1Mpa, the hot air temperature is 260 ℃, the filter screen temperature is 225 ℃, the metering pump temperature is 225 ℃, the spray head temperature is 225 ℃, the extruder temperature is 205 ℃, and the receiving distance is 28 cm.
Example 3
The preparation method of the graft copolymer from polypropylene-glycidyl methacrylate comprises the steps of uniformly mixing 90 parts of polypropylene powder, 2 parts of glycidyl methacrylate and 0.05 part of benzoyl peroxide, and carrying out melt grafting reaction for 8min at the temperature of 180 ℃ and the rotating speed of 95r/min to obtain the polypropylene-glycidyl methacrylate graft copolymer.
Preparing the high oil absorption melt-blown non-woven fabric: vacuum drying 60 parts of polypropylene master batch and 20 parts of polylactic acid master batch at 90 ℃ for 15 h; premixing the dried polypropylene master batch and polylactic acid master batch with 20 parts of polypropylene-glycidyl methacrylate graft copolymer for 5min, and then carrying out melt blending granulation by a double-screw extruder at the melt blending granulation temperature of 200 ℃; finally, the high oil absorption melt-blown non-woven fabric is obtained through a melt-blowing process.
Wherein, the melt-blown process parameters are as follows: the hot air pressure is 0.15Mpa, the hot air temperature is 260 ℃, the filter screen temperature is 230 ℃, the metering pump temperature is 230 ℃, the spray head temperature is 230 ℃, the extruder temperature is 210 ℃, and the receiving distance is 30 cm.
Comparative example 1
Example 1 was repeated except that the "polypropylene-glycidyl methacrylate graft copolymer" was replaced with the "polypropylene-N- (hydroxyalkyl) maleimide graft copolymer" prepared by the melt grafting method, and the other example was repeated except that the graft copolymer was prepared in the same manner as in example 1.
Comparative example 2
The procedure of example 1 was repeated except that the amount of polypropylene-glycidyl methacrylate was changed to 5 parts by weight based on example 1.
Examples of the experiments
Respectively adding 50g of organic oil, diesel oil and kerosene into 3 500mL beakers, then adding 50g of distilled water, immersing the sample in the beakers for 4-6h, and naturally dripping on a 120-mesh screen for 15min at room temperature to ensure that no oil drips. Weighing, calculating the oil absorption multiplying power (g/g): oil absorption multiplying factor (m)3-m2)/m2Wherein m is2Mass m of the sample before adsorption3The mass of the sample after adsorption is given in g.
Extruding the sample with saturated adsorption under a disc with a certain radius under a certain pressure, weighing after extruding for one minute, and calculating the oil retention: oil retention rate (m)4/m5) X 100%, wherein m5Mass m of oil adsorbed to the sample before extrusion4The mass in g of oil adsorbed by the sample after extrusion.
The melt-blown nonwoven fabrics prepared in examples 1 to 3 and comparative examples 1 to 2 were subjected to oil absorption and retention tests, and the results are shown in Table 1
Table 1, examples 1-3 and comparative examples 1-2 oil absorption and retention test results of melt-blown nonwoven fabrics
| Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | |
| Oil absorption multiplying power (g/g) of organic oil | 15.65 | 16.05 | 15.13 | 13.10 | 14.83 |
| Oil absorption multiplying power (g/g) of diesel oil | 16.12 | 16.52 | 16.04 | 13.59 | 14.37 |
| Kerosene oil absorption Rate (g/g) | 15.47 | 15.98 | 15.22 | 13.29 | 13.83 |
| Oil Retention ratio of organic oil (%) | 87.12 | 88.72 | 87.36 | 80.34 | 81.97 |
| Diesel oil retention (%) | 86.65 | 87.02 | 87.41 | 80.19 | 80.58 |
| Kerosene oil retention (%) | 87.49 | 86.99 | 86.87 | 81.32 | 81.79 |
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A preparation method of a high oil absorption melt-blown non-woven fabric is characterized by comprising the following steps: vacuum drying 40-60 parts by weight of polypropylene master batch and 10-20 parts by weight of polylactic acid master batch; premixing the dried polypropylene master batch and polylactic acid master batch with 10-20 parts by weight of polypropylene-glycidyl methacrylate graft copolymer, and then carrying out melt blending granulation by a double-screw extruder; finally, the high oil absorption melt-blown non-woven fabric is obtained through a melt-blowing process.
2. The preparation method of the high oil absorption melt-blown non-woven fabric according to claim 1, wherein the weight ratio of the polypropylene master batch to the polylactic acid master batch to the polypropylene-glycidyl methacrylate graft copolymer is 45:15: 10.
3. The preparation method of the high oil absorption melt-blown non-woven fabric according to claim 1 or 2, wherein the vacuum drying temperature is 80-90 ℃ and the time is 15-18 h.
4. The method for preparing the high oil absorption melt-blown non-woven fabric according to any one of claims 1 to 3, wherein the melt blending granulation temperature of the twin-screw extruder is 190 ℃ to 200 ℃.
5. The preparation method of the high oil absorption melt-blown non-woven fabric according to any one of claims 1 to 4, wherein the melt-blown process parameters are as follows: the hot air pressure is 0.08-0.15MPa, the hot air temperature is 250-.
6. The preparation method of the high oil absorption melt-blown non-woven fabric according to any one of claims 1 to 5, wherein the preparation method of the polypropylene-glycidyl methacrylate graft copolymer comprises the following steps: uniformly mixing 80-100 parts by weight of polypropylene powder, 1-3 parts by weight of glycidyl methacrylate and 0.03-0.05 part by weight of benzoyl peroxide, and carrying out melt grafting reaction for 5-10min at the temperature of 175-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011525540.3A CN112709005A (en) | 2020-12-22 | 2020-12-22 | Preparation method of high-oil-absorption melt-blown non-woven fabric |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011525540.3A CN112709005A (en) | 2020-12-22 | 2020-12-22 | Preparation method of high-oil-absorption melt-blown non-woven fabric |
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| CN112709005A true CN112709005A (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011525540.3A Withdrawn CN112709005A (en) | 2020-12-22 | 2020-12-22 | Preparation method of high-oil-absorption melt-blown non-woven fabric |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279140A (en) * | 2021-05-20 | 2021-08-20 | 武汉纺织大学 | Special-shaped porous hydrophilic antibacterial melt-blown non-woven fabric and preparation method thereof |
| CN114672925A (en) * | 2022-02-28 | 2022-06-28 | 广东金发科技有限公司 | Polylactic acid melt-blown fabric and preparation method and application thereof |
-
2020
- 2020-12-22 CN CN202011525540.3A patent/CN112709005A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279140A (en) * | 2021-05-20 | 2021-08-20 | 武汉纺织大学 | Special-shaped porous hydrophilic antibacterial melt-blown non-woven fabric and preparation method thereof |
| CN114672925A (en) * | 2022-02-28 | 2022-06-28 | 广东金发科技有限公司 | Polylactic acid melt-blown fabric and preparation method and application thereof |
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Application publication date: 20210427 |
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| WW01 | Invention patent application withdrawn after publication |