CN104562285A - Preparation method for monofilaments containing hemp meal - Google Patents
Preparation method for monofilaments containing hemp meal Download PDFInfo
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- CN104562285A CN104562285A CN201510006004.5A CN201510006004A CN104562285A CN 104562285 A CN104562285 A CN 104562285A CN 201510006004 A CN201510006004 A CN 201510006004A CN 104562285 A CN104562285 A CN 104562285A
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Abstract
The invention discloses a preparation method for monofilaments containing hemp meal. The preparation method comprises the following steps: crushing the mixture of hemp skins and hemp stems in an ultrafine grinder for many times to obtain grains with grain diameter of 10-60 microns; mixing the hemp skins and the hemp stems at a ratio of 1: (1 to 2) to obtain the hemp meal, treating the hemp meal in silane coupling agent aqueous solution, then roasting the hemp meal in an oven, and thus obtaining the treated hemp meal after the hemp meal is dried; uniformly mixing the treated hemp meal with polypropylene, polyethylene or polylactic acid and then adding in a double-screw extruder and carrying out melt spinning, carrying out winding forming by a winding machine, and then secondarily stretching the spun filaments by an air heating method to obtain the monofilaments containing the hemp meal. According to the preparation method disclosed by the invention, the hemp skins and the hemp stems are adequately utilized, and the utilization space of hemp is expanded by means of producing packaging materials, agricultural mesh film strengthening nets, carpet base cloth nets, geotechnical cloth base cloth nets, ropes and the like.
Description
Technical field
The invention belongs to the multipurpose development field of fiber crops, particularly a kind of monofilament preparation method containing numb powder.
Background technology
China has one of country enriching hemp resource in the world, crudefiber crop is annual raw regeneration crop, has the advantages that density is low, intensity is large, price is low, along with " environmental protection " this theory is rooted in the hearts of the people, the development and utilization of new type natural fibre resources is gone with the tide of historical development, and develops rapidly.With numb powder and polypropene blended spinning to making full use of renewable natural plants, highly beneficial to the cost reducing material, this is consistent towards low cost, high performance developing direction with current material.Present forefathers have used calcium carbonate powder and PP blend melt spinning, final obtained calcium carbonate-filled PP packaging material, and the present invention is intended to replace calcium carbonate powder to make numb powder and polypropylene material with numb powder.The output of biological yield in all plants of fiber crops plant is the highest, its bast fiber can obtain textile fiber, but because current peeling is by artificial, labor cost is high, seldom use, cause the planting benefit of fiber crops more and more less, waste of flax is then usually as waste combustion, bring benefit not only to fiber crops plantation family, cause atmosphere pollution on the contrary.This material waste of flax fiber crops skin is pulverized after the numb powder made and PP is blended reduces PP consumption, and numb powder is degradable environment friendly material, therefore numb powder and polypropene blended spinning is used, to making full use of the numb resource of China's abundant and making material all be significant towards cost degradation development.
There is a large amount of polar functional groups in fiber crops powder surface, polypropylene surface contains non-polar functional group, and numb powder and polypropene blended spinning are in experimentation, and because the interface compatibility of the two is poor, interfacial adhesion is very little.Therefore, the consistency problem that improve the numb powder of polar functional group and the PP interface of non-polar functional group is the emphasis of whole patent.Research shows, carries out the surface adhesiveness energy that surface treatment can strengthen numb powder and PP with silane coupler to numb powder.
Summary of the invention
Problem to be solved by this invention be numb powder for spinning, the problem that its surface adhesiveness can differ from.
In order to solve the problem, the invention provides a kind of monofilament preparation method containing numb powder, it is characterized in that, comprise the following steps:
Step 1): numb skin, being placed in ultrafine crusher respectively of waste of flax repeatedly being pulverized, obtain the particle that particle diameter is 10 ~ 60 microns, is then 1: 1 ~ 2 mix numb skin waste of flax and obtain numb powder with mass ratio;
Step 2): numb powder being placed on mass concentration is process in the silane coupler aqueous solution of 1%, the quality of silane coupler solute is 1% ~ 3% of numb opaque amount, then in the baking oven of 90 DEG C ~ 110 DEG C, toast 6 ~ 8h, after treating that numb dried bean noodles is dry, obtain the numb powder after processing;
Step 3): add in double screw extruder after the numb powder after process is mixed with polypropylene, polyethylene or PLA and carry out melt spinning, through up-coiler winding shaping, then by air heat method, spun silk is carried out the monofilament that succeeding stretch obtains containing numb powder.
Preferably, described step 1) in the mass ratio of numb skin in numb powder and waste of flax be 1: 1 ~ 2.
Preferably, described step 3) in the technological parameter of double screw extruder be: the temperature of double screw extruder is 170 DEG C ~ 230 DEG C, and the temperature of spinning die head is 190 ~ 240 DEG C, pressure 4 ~ 7.5MPa.
Preferably, described step 3) in the draw speed of up-coiler be 80 ~ 200 ms/min.
Preferably, described step 3) in the technological parameter of succeeding stretch be: stretching ratio is 2.0 ~ 5.2 times, and draft temperature is 50 ~ 135 DEG C.
The numb skin waste of flax of the present invention to fibre of flax for textile material is ground into numb powder, then by numb powder and PP, PE, and blended obtained numb powder PP monofilament.Rear for numb skin waste of flax pulverizing and polypropylene are carried out co-blended spinning by the present invention first, carried out sufficient utilization, carried out multipurpose exploitation to fibre of flax for textile material to numb skin and waste of flax.
Compared with prior art, beneficial effect of the present invention is:
1, utilize the discarded blended monofilament making a kind of environment-friendly type in PP, PE or PLA of crudefiber crop, the hygroscopicity of its products characteristics natural fabric that has been existing, has again the stiffness of synthetic fiber;
2, utilize the direct blended numb powder of double screw extruder and modified additive and carrier PP, PE or PLA, without the need to granulation, shorten manufacture craft, reduce cost.
Detailed description of the invention
For making the present invention become apparent, hereby with preferred embodiment, be described in detail below.
Embodiment 1
The filament preparation process adding numb powder in PP is as follows:
By numb skin, after waste of flax is pulverized respectively in ultrafine crusher, the numb powder that particle diameter is 10 ~ 60 microns is ground through ball mill, be mix numb skin waste of flax obtain numb powder at 1: 1 with mass ratio, fiber crops powder will be the process of the silane coupler of 1% through mass fraction, the quality of silane coupler solute accounts for 1% of numb opaque amount, then in the baking oven of 100 DEG C, 8h is toasted, after treating that numb dried bean noodles is dry, 0.09g fiber crops powder after getting process and 2.91g PP carry out melt spinning, the temperature of double screw extruder is 190 DEG C, the temperature of spinning die head is 230 DEG C, spinning speed is 350 ms/min.Through up-coiler winding shaping, draw speed is 80 ms/min, then by air heat method, spun silk is carried out succeeding stretch, and the multiplying power of stretching is 5.2 times, and draft temperature is 100 DEG C.
Comparative example 1
Fiber crops powder is not through the technique of silane coupler process: after numb skin, waste of flax being pulverized in ultrafine crusher respectively, the numb powder that particle diameter is 10 ~ 60 microns is ground through ball mill, be mix numb skin waste of flax obtain numb powder at 1: 1 with mass ratio, numb powder is placed in the baking oven of 100 DEG C, places 8h, after treating that numb dried bean noodles is dry, get numb powder 0.09g and PP2.91g and carry out melt spinning, the temperature of double screw extruder is 190 DEG C, the temperature of spinning die head is 230 DEG C, and spinning speed is 350 ms/min.Through up-coiler winding shaping, draw speed is 80 ms/min, then by air heat method, spun silk is carried out succeeding stretch, and the multiplying power of stretching is 5.2 times, and draft temperature is 100 DEG C.With fracture strength, elongation at break, the work to break of tensile strength instrument test fiber.The test result of comparative example 1 and embodiment 1 is in table 1.
Table 1 fibre property test result
Embodiment 2
The filament preparation process adding numb powder in PP is as follows:
By numb skin, after waste of flax is pulverized respectively in ultrafine crusher, the numb powder that particle diameter is 10 ~ 60 microns is ground through ball mill, be mix numb skin waste of flax obtain numb powder at 1: 2 with mass ratio, fiber crops powder will be the process of the silane coupler of 1% through mass fraction, the quality of silane coupler solute accounts for 1% of numb opaque amount, then in the baking oven of 100 DEG C, 8h is toasted, after treating that numb dried bean noodles is dry, 0.09g fiber crops powder after getting process and 2.91g PP carry out melt spinning, the temperature of double screw extruder is 190 DEG C, the temperature of spinning die head is 230 DEG C, spinning speed is 350 ms/min.Through up-coiler winding shaping, draw speed is 80 ms/min, then by air heat method, spun silk is carried out succeeding stretch, and the multiplying power of stretching is 5.2 times, and draft temperature is 100 DEG C.
Comparative example 2
Fiber crops powder is not through the technique of silane coupler process: after numb skin, waste of flax being pulverized in ultrafine crusher respectively, the numb powder that particle diameter is 10 ~ 60 microns is ground through ball mill, be mix numb skin waste of flax obtain numb powder at 1: 2 with mass ratio, numb powder is placed in the baking oven of 100 DEG C, places 8h, after treating that numb dried bean noodles is dry, get numb powder 0.09g and PP2.91g and carry out melt spinning, the temperature of double screw extruder is 190 DEG C, the temperature of spinning die head is 230 DEG C, and spinning speed is 350 ms/min.Through up-coiler winding shaping, draw speed is 80 ms/min, then by air heat method, spun silk is carried out succeeding stretch, and the multiplying power of stretching is 5.2 times, and draft temperature is 100 DEG C.With fracture strength, elongation at break, the work to break of tensile strength instrument test fiber.The test result of comparative example 2 and embodiment 2 is in table 2.
Table 2 fibre property test result
Embodiment 3
The filament preparation process adding numb powder in PP is as follows:
By numb skin, after waste of flax is pulverized respectively in ultrafine crusher, the numb powder that particle diameter is 10 ~ 60 microns is ground through ball mill, be mix numb skin waste of flax obtain numb powder at 2: 3 with mass ratio, fiber crops powder will be the process of the silane coupler of 1% through mass fraction, the quality of silane coupler solute accounts for 3% of numb opaque amount, then in the baking oven of 100 DEG C, 8h is toasted, after treating that numb dried bean noodles is dry, 0.18g fiber crops powder after getting process and 2.82gPP carry out melt spinning, the temperature of double screw extruder is 220 DEG C, the temperature of spinning die head is 240 DEG C, spinning speed is 750 ms/min.Through up-coiler winding shaping, draw speed is 180 ms/min, then by air heat method, spun silk is carried out succeeding stretch, and the multiplying power of stretching is 4.5 times, and draft temperature is 120 DEG C.
Comparative example 3
Fiber crops powder is not through the technique of silane coupler process: after numb skin, waste of flax being pulverized in ultrafine crusher respectively, the numb powder that particle diameter is 10 ~ 60 microns is ground through ball mill, be mix numb skin waste of flax obtain numb powder at 2: 3 with mass ratio, numb powder is placed in the baking oven of 100 DEG C, places 8h, after treating that numb dried bean noodles is dry, get numb powder 0.18g and PP2.82g and carry out melt spinning, the temperature of double screw extruder is 220 DEG C, the temperature of spinning die head is 240 DEG C, and spinning speed is 750 ms/min.Through up-coiler winding shaping, draw speed is 180 ms/min, then by air heat method, spun silk is carried out succeeding stretch, and the multiplying power of stretching is 4.5 times, and draft temperature is 120 DEG C.With fracture strength, elongation at break, the work to break of tensile strength instrument test fiber.The test result of comparative example 3 and embodiment 3 is in table 3.
Table 3 fibre property test result
Embodiment 4
The filament preparation process adding numb powder in PP is as follows:
By numb skin, after waste of flax is pulverized respectively in ultrafine crusher, the numb powder that particle diameter is 10 ~ 60 microns is ground through ball mill, be mix numb skin waste of flax obtain numb powder at 2: 3 with mass ratio, fiber crops powder will be the process of the silane coupler of 1% through mass fraction, the quality of silane coupler solute accounts for 3% of numb opaque amount, then in the baking oven of 100 DEG C, 8h is toasted, after treating that numb dried bean noodles is dry, 0.27g fiber crops powder after getting process and 2.73gPP carry out melt spinning, the temperature of double screw extruder is 210 DEG C, the temperature of spinning die head is 230 DEG C, spinning speed is 700 ms/min.Through up-coiler winding shaping, draw speed is 160 ms/min, then by air heat method, spun silk is carried out succeeding stretch, and the multiplying power of stretching is 3.5 times, and draft temperature is 110 DEG C.
Comparative example 4
Fiber crops powder is not through the technique of silane coupler process: after numb skin, waste of flax being pulverized in ultrafine crusher respectively, the numb powder that particle diameter is 10 ~ 60 microns is ground through ball mill, be mix numb skin waste of flax obtain numb powder at 2: 3 with mass ratio, numb powder is placed in the baking oven of 100 DEG C and places 8h, after treating that numb dried bean noodles is dry, get numb powder 0.27g and PP2.73g and carry out melt spinning, the temperature of double screw extruder is 210 DEG C, the temperature of spinning die head is 230 DEG C, and spinning speed is 700 ms/min.Through up-coiler winding shaping, draw speed is 160 ms/min, then by air heat method, spun silk is carried out succeeding stretch, and the multiplying power of stretching is 3.5 times, and draft temperature is 110 DEG C.With fracture strength, elongation at break, the work to break of tensile strength instrument test fiber.The test result of comparative example 4 and embodiment 4 is in table 4.
Table 4 fibre property test result
Embodiment 5
The filament preparation process adding numb powder in PP is as follows:
By numb skin, after waste of flax is pulverized respectively in ultrafine crusher, the numb powder that particle diameter is 10 ~ 60 microns is ground through ball mill, be mix numb skin waste of flax obtain numb powder at 2: 3 with mass ratio, fiber crops powder will be the process of the silane coupler of 1% through mass fraction, the quality of silane coupler solute accounts for 3% of numb opaque amount, then in the baking oven of 100 DEG C, 8h is toasted, after treating that numb dried bean noodles is dry, 0.36g fiber crops powder after getting process and 2.64gPP carry out melt spinning, the temperature of double screw extruder is 200 DEG C, the temperature of spinning die head is 220 DEG C, spinning speed is 650 ms/min.Through up-coiler winding shaping, draw speed is 140 ms/min, then by air heat method, spun silk is carried out succeeding stretch, and the multiplying power of stretching is 2.9 times, and draft temperature is 95 DEG C.
Comparative example 5
Fiber crops powder is not through the technique of silane coupler process: after numb skin, waste of flax being pulverized in ultrafine crusher respectively, the numb powder that particle diameter is 10 ~ 60 microns is ground through ball mill, be mix numb skin waste of flax obtain numb powder at 2: 3 with mass ratio, numb powder is placed in the baking oven of 100 DEG C, places 8h, after treating that numb dried bean noodles is dry, get numb powder 0.36g and PP2.64g and carry out melt spinning, the temperature of double screw extruder is 200 DEG C, the temperature of spinning die head is 220 DEG C, and spinning speed is 650 ms/min.Through up-coiler winding shaping, draw speed is 140 ms/min, then by air heat method, spun silk is carried out succeeding stretch, and the multiplying power of stretching is 2.9 times, and draft temperature is 95 DEG C.With fracture strength, elongation at break, the work to break of tensile strength instrument test fiber.The test result of comparative example 5 and embodiment 5 is in table 5.
Table 5 fibre property test result
Embodiment 6
The filament preparation process adding numb powder in PP is as follows:
By numb skin, after waste of flax is pulverized respectively in ultrafine crusher, the numb powder that particle diameter is 10 ~ 60 microns is ground through ball mill, be mix numb skin waste of flax obtain numb powder at 2: 3 with mass ratio, fiber crops powder will be the process of the silane coupler of 1% through mass fraction, the quality of silane coupler solute accounts for 3% of numb opaque amount, then in the baking oven of 100 DEG C, 8h is toasted, after treating that numb dried bean noodles is dry, 0.45g fiber crops powder after getting process and 2.55gPP carry out melt spinning, the temperature of double screw extruder is 190 DEG C, the temperature of spinning die head is 210 DEG C, spinning speed is 500 ms/min.Through up-coiler winding shaping, draw speed 120 ms/min, then carries out succeeding stretch by air heat method by spun silk, and the multiplying power of stretching is 2.6 times, and draft temperature is 80 DEG C.
Comparative example 6
Fiber crops powder is not through the technique of silane coupler process: after numb skin, waste of flax being pulverized in ultrafine crusher respectively, the numb powder that particle diameter is 10 ~ 60 microns is ground through ball mill, be mix numb skin waste of flax obtain numb powder at 2: 3 with mass ratio, numb powder is placed in the baking oven of 100 DEG C, places 8h, after treating that numb dried bean noodles is dry, get numb powder 0.45g and PP2.55g and carry out melt spinning, the temperature of double screw extruder is 190 DEG C, the temperature of spinning die head is 210 DEG C, and spinning speed is 500 ms/min.Through up-coiler winding shaping, draw speed 120 ms/min, then carries out succeeding stretch by air heat method by spun silk, and the multiplying power of stretching is 2.6 times, and draft temperature is 80 DEG C.With fracture strength, elongation at break, the work to break of tensile strength instrument test fiber.The test result of comparative example 6 and embodiment 6 is in table 6.
Table 6 fibre property test result
Embodiment 7
The filament preparation process adding numb powder in PP is as follows:
By numb skin, after waste of flax is pulverized respectively in ultrafine crusher, the numb powder that particle diameter is 10 ~ 60 microns is ground through ball mill, be mix numb skin waste of flax obtain numb powder at 2: 3 with mass ratio, fiber crops powder will be the process of the silane coupler of 1% through mass fraction, the quality of silane coupler solute accounts for 3% of numb opaque amount, then in the baking oven of 100 DEG C, 8h is toasted, after treating that numb dried bean noodles is dry, 0.54g fiber crops powder after getting process and 2.46gPP carry out melt spinning, the temperature of double screw extruder is 180 DEG C, the temperature of spinning die head is 200 DEG C, spinning speed is 400 ms/min.Through up-coiler winding shaping, draw speed is 100 ms/min, then by air heat method, spun silk is carried out succeeding stretch, and the multiplying power of stretching is 2.3 times, and draft temperature is 65 DEG C.
Comparative example 7
Fiber crops powder is not through the technique of silane coupler process: after numb skin, waste of flax being pulverized in ultrafine crusher respectively, the numb powder that particle diameter is 10 ~ 60 microns is ground through ball mill, be mix numb skin waste of flax obtain numb powder at 2: 3 with mass ratio, numb powder is placed in the baking oven of 100 DEG C, places 8h, after treating that numb dried bean noodles is dry, get numb powder 0.54g and PP2.46g and carry out melt spinning, the temperature of double screw extruder is 180 DEG C, the temperature of spinning die head is 200 DEG C, and spinning speed is 400 ms/min.Through up-coiler winding shaping, draw speed is 100 ms/min, then by air heat method, spun silk is carried out succeeding stretch, and the multiplying power of stretching is 2.3 times, and draft temperature is 65 DEG C.With fracture strength, elongation at break, the work to break of tensile strength instrument test fiber.The test result of comparative example 7 and embodiment 7 is in table 7.
Table 7 fibre property test result
Embodiment 8
The filament preparation process adding numb powder in PP is as follows:
By numb skin, after waste of flax is pulverized respectively in ultrafine crusher, the numb powder that particle diameter is 10 ~ 60 microns is ground through ball mill, be mix numb skin waste of flax obtain numb powder at 2: 3 with mass ratio, fiber crops powder will be the process of the silane coupler of 1% through mass fraction, the quality of silane coupler solute accounts for 3% of numb opaque amount, then in the baking oven of 100 DEG C, 8h is toasted, after treating that numb dried bean noodles is dry, 0.60g fiber crops powder after getting process and 2.4gPP carry out melt spinning, the temperature of double screw extruder is 170 DEG C, the temperature of spinning die head is 190 DEG C, spinning speed is 300 ms/min.Through up-coiler winding shaping, draw speed is 80 ms/min, then by air heat method, spun silk is carried out succeeding stretch, and the multiplying power of stretching is 2 times, and draft temperature is 50 DEG C.
Comparative example 8
Fiber crops powder is not through the technique of silane coupler process: after numb skin, waste of flax being pulverized in ultrafine crusher respectively, the numb powder that particle diameter is 10 ~ 60 microns is ground through ball mill, be mix numb skin waste of flax obtain numb powder at 2: 3 with mass ratio, numb powder is placed in the baking oven of 100 DEG C, places 8h, after treating that numb dried bean noodles is dry, get numb powder 0.45g and PP2.55g and carry out melt spinning, the temperature of double screw extruder is 170 DEG C, the temperature of spinning die head is 190 DEG C, and spinning speed is 300 ms/min.Through up-coiler winding shaping, draw speed is 80 ms/min, then by air heat method, spun silk is carried out succeeding stretch, and the multiplying power of stretching is 2 times, and draft temperature is 50 DEG C.With fracture strength, elongation at break, the work to break of tensile strength instrument test fiber.The test result of comparative example 8 and embodiment 8 is in table 8.
Table 8 fibre property test result
Claims (5)
1., containing a monofilament preparation method for numb powder, it is characterized in that, comprise the following steps:
Step 1): numb skin, being placed in ultrafine crusher respectively of waste of flax repeatedly being pulverized, obtain the particle that particle diameter is 10 ~ 60 microns, is then 1: 1 ~ 2 mix numb skin waste of flax and obtain numb powder with mass ratio;
Step 2): numb powder being placed on mass concentration is process in the silane coupler aqueous solution of 1%, the quality of silane coupler solute is 1% ~ 3% of numb opaque amount, then in the baking oven of 90 DEG C ~ 110 DEG C, toast 6 ~ 8h, after treating that numb dried bean noodles is dry, obtain the numb powder after processing;
Step 3): add in double screw extruder after the numb powder after process is mixed with polypropylene, polyethylene or PLA and carry out melt spinning, through up-coiler winding shaping, then by air heat method, spun silk is carried out the monofilament that succeeding stretch obtains containing numb powder.
2. the monofilament preparation method containing numb powder according to claim 1, is characterized in that, described step 1) in the mass ratio of numb skin in numb powder and waste of flax be 1: 1 ~ 2.
3. the monofilament preparation method containing numb powder according to claim 1, it is characterized in that, described step 3) in the technological parameter of double screw extruder be: the temperature of double screw extruder is 170 DEG C ~ 230 DEG C, and the temperature of spinning die head is 190 ~ 240 DEG C, pressure 4 ~ 7.5MPa.
4. the monofilament preparation method containing numb powder according to claim 1, is characterized in that, described step 3) in the draw speed of up-coiler be 80 ~ 200 ms/min.
5. the monofilament preparation method containing numb powder according to claim 1, is characterized in that, described step 3) in the technological parameter of succeeding stretch be: stretching ratio is 2.0 ~ 5.2 times, and draft temperature is 50 ~ 135 DEG C.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106012085A (en) * | 2016-07-27 | 2016-10-12 | 张蒙 | Polylactic acid fiber fabric for automobile seat cushion |
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| CN101671866A (en) * | 2009-10-14 | 2010-03-17 | 奇瑞汽车股份有限公司 | Sheath-core fibrilia and manufacturing method thereof |
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Application publication date: 20150429 |