CN107988653A - A kind of low melting point high intensity PE-PP core-sheath monofilament and preparation method thereof - Google Patents
A kind of low melting point high intensity PE-PP core-sheath monofilament and preparation method thereof Download PDFInfo
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- CN107988653A CN107988653A CN201711377149.1A CN201711377149A CN107988653A CN 107988653 A CN107988653 A CN 107988653A CN 201711377149 A CN201711377149 A CN 201711377149A CN 107988653 A CN107988653 A CN 107988653A
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- core
- monofilament
- cortex
- composite
- sandwich layer
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Classifications
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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
- 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
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
-
- 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
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/34—Core-skin structure; Spinnerette packs therefor
-
- 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
- D01F1/106—Radiation shielding agents, e.g. absorbing, reflecting agents
Abstract
The present invention relates to a kind of low melting point high intensity PE PP core-sheaths monofilament and its manufacture method.It is made of cortex and sandwich layer, the cortical material accounts for 10~30wt% of composite monofilament, and core material accounts for 70~90wt% of composite monofilament, and cortical material is made of HDPE polyethylene, Masterbatch and antioxidant master batch；Core material is made of the antioxidant master batch of homopolymerization PP, Masterbatch sum.Its sandwich layer PP makes sandwich layer keep the original higher strength bones of PP using the high density polyethylene (HDPE) of low melting point using homopolypropylene, cortex PE by composite spinning and super drawing.Networking is using lower temperature when shaping（The melting temperature of PE i.e. 130 DEG C or so）It can be made to be melted in the PE of mesh sheet node and condense into firm net node, the PP of sandwich layer keeps original intensity and high-temperature stability.This core-sheath monofilament is mainly used in the energy saving fishing gear of long range fishing（That is fishing net）.
Description
Technical field
The present invention relates to a kind of low melting point high intensity PE-PP core-sheaths monofilament and its manufacture method.Caught applied to ocean
Drag for energy saving fishing gear.
Background technology
Traditional fishing net is mainly nylon monofilament with silk.Intensity is big, wear-resisting ageing-resistant.But due to than great, water suction, in water
It is big to drag resistance, energy consumption is larger during fishing operation.Polyethylene, polypropylene monofilament is due to its light specific gravity, and the characteristic such as do not absorb water is in fishing
It is widely used in netting gear, dragging horsepower can be reduced particularly in long range fishing, but it is strong due to being broken after its networking
It is inadequate to spend coefficient, have impact on the use of the big net for long range fishing.Needing certain temperature to shape after monofilament networking can just make
Node is firm, is typically greater than the glass transition temperature of material, but this temperature influences whether the change of the molecular structure of polymer again
Change, so as to influence crystallinity, and then influence stress concentration point net node.
The content of the invention
The shortcomings that it is an object of the invention to overcome nylon monofilament, polyethylene monofilament and polypropylene monofilament, there is provided a kind of low
Fusing point high intensity PE-PP core-sheaths monofilament and its manufacture method, make it make it in mesh sheet knot using low temperature when networking is shaped
The PE fusings of point condense into firm net node, and the PP of sandwich layer keeps original intensity.
The present invention, the low melting point high intensity PE-PP core-sheath monofilament, is made of, the cortex cortex and sandwich layer
Material accounts for 10~30wt% of composite monofilament, and core material accounts for 70~90wt% of composite monofilament, wherein, the cortical material by
The antioxidant master batch composition of the HDPE polyethylene of 93.5~99.7wt%, the Masterbatch of 0~6wt% and 0.3%~1.5wt；Sandwich layer
Material is made of the antioxidant master batch of the homopolymerization PP of 93.7%-99.7wt%, the Masterbatch of 0~6wt% and 0.3%~1.0wt.
The present invention, the antioxidant master batch are 70 by weight ratio:30 polypropylene powder and antioxidant UV531 passes through
Double screw extruder melting, shearing, kneading, feeding, tie rod, pelletizing and antioxidant master batch is made.
The preparation method of low melting point high intensity PE-PP core-sheath monofilament of the present invention, comprises the following steps：
（1）HDPE polyethylene, Masterbatch and antioxidant master batch are measured in proportion, pour into mixing equipment carry out batch mixing it is uniform,
Pour into the hopper of cortex supercharging screw extruder, be sent into metering pump by its melting shearing measures in proportion, is sent into Compound spinning
In the cortex chamber of composite component in silk case；
（2）PP polypropylene, Masterbatch and antioxidant master batch are measured in proportion, pour into mixing equipment carry out batch mixing it is uniform, fall
In the hopper for entering sandwich layer supercharging screw extruder, metering pump is sent into by its melting shearing and is measured in proportion, is sent into composite spinning
In the sandwich layer chamber of composite component in case；
（3）Spinning, cortex cladding core are carried out in the composite component that cortex raw material and core layer raw material enter in composite spinning box at the same time
The precursor of layer formation skin-core structure, which enters in cooling water tank, to be cooled down.
（4）From cooling water tank cool down precursor oil by horizontal flat traction machine, drawing-off, sizing, coiling and molding.
（5）Technological process：As shown in Figure 1.
（6）Temperature control：
a）Cortex screw extruder temperature control is at 130~220 DEG C；
b）Sandwich layer screw extruder temperature control is at 180~240 DEG C；
c）Composite spinning box temperature control is at 180~220 DEG C；
d）Drafting machine temperature control is at 80~160 DEG C.
（7）The control of drafting multiple：
7~10 times of general times；1 3~6 times of area；2 1.5~2 times of areas；3 1.2~2 times of areas.
The present invention, the HDPE are high density polyethylene (HDPE), and PP is homopolypropylene, the composite spinning box, composite spinning
Component is commercial product.Wherein, composite spinning box uses the product of Beijing Zhong Li chemical fibre equipments Co., Ltd production；Composite spinning
Component uses the product of changzhou spinning precision optical machinery Co., Ltd production；Horizontal flat traction machine is limited using Changzhou richness woods machinery
The SYL-580 types seven roller drafting machines of horizontal essence control of company's production.
The present invention, has following features：
（1）The present invention uses the composite monofilament of skin-core structure, sandwich layer PP using homopolypropylene, what cortex PE was used
It is the high density polyethylene (HDPE) of low melting point, sandwich layer is kept the original higher strength bones of PP by composite spinning and super drawing.
Networking is using lower temperature when shaping（The melting temperature of PE i.e. 120 DEG C or so）It can be made to be melted simultaneously in the PE of mesh sheet node
Firm net node is condensed into, the PP of sandwich layer keeps original intensity and high-temperature stability.The composite monofilament is used to be made into mesh sheet
National standard is can reach, national standard is to technical indicator as defined in polypropylene monofilament：12 strands of nets of 36Tex polypropylene monofilaments
Piece：Ultimate strength coefficient ＞ 210；21 bursts of mesh sheet of 36Tex polypropylene monofilaments：Ultimate strength coefficient ＞ 370.
（2）Antioxidant UV531 is added in cortex and sandwich layer, antioxidant UV531 is also referred to as ultra-violet absorber
UV531, its role is to：Light shine, uvioresistant is shone, non-aging, makes the service life of product longer.
Brief description of the drawings
Fig. 1 is present invention process flow diagram.
Embodiment
The preparation of embodiment 1, antioxidant master batch：It is 70 by weight ratio:30 polypropylene powder and antioxidant UV531 leads to
Cross double screw extruder melting, shearing, kneading, feeding, tie rod（Cooling）, pelletizing and antioxidant master batch is made.
Embodiment 2, raw white 330D low melting point high intensity PE-PP core-sheath monofilament, spinning speed 100m/min.
（1）The HDPE polyethylene and 1.0wt% antioxidant UV531 master batches of cortical material 99.0wt% are poured into batch mixer and mixed
Close after uniformly releasing, pour into the melting of cortical material screw extruder, shearing, plasticizing and be uniformly sent into positive battery metering pump.Setting metering
The rotating speed metering mass ratio 15% of pump, melt are entered in the cortex chamber in composite component by pipeline, and the pressure control of cortex chamber exists
5~9MPa, ensures the pressure stability in cortex chamber.Cortex melt enters in the cortex chamber in the composite component in composite spinning box
Spinning for composite.
The temperature setting in each area of cortex screw extruder：
1 130~210 DEG C of area；
2 160~220 DEG C of areas；
3 160~220 DEG C of areas；
4 160~220 DEG C of areas；
5 160~220 DEG C of areas；
180~220 DEG C of composite spinning box.
（2）The homopolymerization PP of core material 99.2wt% and the antioxidant UV531 master batches of 0.8wt% are poured into batch mixer mixing
Uniformly after releasing, pour into the melting of core material screw extruder, shearing, be plasticized uniform, feeding positive battery metering pump.Set metering pump
Rotating speed metering mass ratio 85%, melt entered in the sandwich layer chamber in composite component by pipeline, and the pressure of sandwich layer chamber is controlled 5
~9MPa, ensures the pressure stability in sandwich layer chamber.Sandwich layer melt enters in the sandwich layer chamber in the composite component in composite spinning box
Spinning for composite.The temperature setting in each area of sandwich layer screw extruder：
1 180~230 DEG C of area；
2 180~240 DEG C of areas；
3 180~240 DEG C of areas；
4 180~220 DEG C of areas；
5 180~220 DEG C of areas.
（3）The precursor of composite spinning, which enters in cooling water tank, to be cooled down.
（4）Precursor after cooling by oiling device by precursor oil uniformly fully after enter back into the horizontal drafting machine of seven rollers into
Row drawing and setting.
Drafting machine general times are 8~10 times.Wherein 3~5 times of 1 area's multiple, 2 area's multiples are 1.5~2 times, and 3 area's multiples are
1.3~2 times；Hot-water draw box temperature is 80 DEG C~100 DEG C, hot wind drawing-off oven temperature is 130 DEG C~160 DEG C, hot wind drawing-off
Shaping baking oven temperature is 140~160 DEG C.
（5）The skin-core structure monofilament of sizing stretching is entered coiling and molding in up- coiler by seal wire porcelain piece completely.
（6）The physical index of raw white 330D low melting point high intensity PE-PP core-sheath monofilament：
Fiber number： 330D±20D；
Intensity： ≥6.5CN/dtex；
CV values： ≤4；
Elongation at break： ≤25%.
Embodiment 3, black 330D low melting point high intensity PE-PP core-sheath monofilament, spinning speed 100m/min.
（1）The black agglomerate and 0.8wt% antioxidants of HDPE polyethylene, 4.5wt% cortical material 94.7wt%
UV531 master batches are poured into after batch mixer is uniformly mixed releasing, pour into the melting of cortical material screw extruder, shearing, plasticizing are uniformly sent
Enter positive battery metering pump.The rotating speed metering mass ratio 18% of metering pump is set, melt enters the cortex chamber in composite component by pipeline
In, the pressure of cortex chamber is controlled in 5~9MPa, ensures the pressure stability in cortex chamber.Cortex melt enters in composite spinning box
Composite component in cortex chamber in spinning for composite.
The temperature setting in each area of cortex screw extruder：
1 140~220 DEG C of area；
2 160~220 DEG C of areas；
3 160~220 DEG C of areas；
4 160~220 DEG C of areas；
5 180~220 DEG C of areas；
180~220 DEG C of composite spinning box
（2）The black agglomerate of homopolymerization PP, 4.0wt% core material 95.4wt% and the antioxidant UV531 master batches of 0.6wt%
Pour into after batch mixer is uniformly mixed releasing, it is uniform to pour into the melting of core material screw extruder, shearing, plasticizing, is sent into boost gauge
Amount pump.The rotating speed metering mass ratio 82% of metering pump is set, melt is entered in the sandwich layer chamber in composite component by pipeline, sandwich layer
Pressure stability of the pressure control of chamber in 5~9MPa, guarantee sandwich layer chamber.Sandwich layer melt enters the complex group in composite spinning box
Spinning for composite in sandwich layer chamber in part.
The temperature setting in each area of sandwich layer screw extruder：
1 180~230 DEG C of area；
2 180~240 DEG C of areas；
3 180~240 DEG C of areas；
4 180~220 DEG C of areas；
5 180~220 DEG C of areas.
（3）The precursor of composite spinning, which enters in cooling water tank, to be cooled down.
（4）Precursor from cooling water tank out, which enters in cooling water tank, to be continued to cool down.
（5）Precursor after cooling by oiling device by precursor oil uniformly fully after enter back into the horizontal drafting machine of seven rollers into
Row drawing and setting.Drafting machine general times are 8~10 times or so.Wherein 3~5 times of 1 area's multiple, 2 area's multiples are 1.8~2 times, 3rd area
Multiple is 1.3~2 times；Hot-water draw box temperature is 80~100 DEG C, hot wind drawing-off oven temperature is 130~160 DEG C, hot wind is led
Shaping baking oven temperature is stretched for 140~160 DEG C.
（6）The skin-core structure monofilament of sizing stretching is entered coiling and molding in up- coiler by seal wire porcelain piece completely.
（7）The physical index of black 330D low melting point high intensity PE-PP core-sheath monofilament：
Fiber number： 330D±20D；
Intensity： ≥6.0CN/dtex；
CV values： ≤4；
Elongation at break： ≤25%.
Claims (4)
1. a kind of low melting point high intensity PE-PP core-sheath monofilament, is made of cortex and sandwich layer, it is characterised in that：The cortex
Material accounts for 10~30wt% of composite monofilament, and core material accounts for 70~90wt% of composite monofilament, wherein, the cortical material by
The antioxidant master batch composition of the HDPE polyethylene of 93.5~99.7wt%, the Masterbatch of 0~6wt% and 0.3%~1.5wt；Sandwich layer
Material is made of the antioxidant master batch of the homopolymerization PP of 93.7%-99.7wt%, the Masterbatch of 0~6wt% and 0.3%~1.0wt.
2. low melting point high intensity PE-PP core-sheath monofilament according to claim 1, it is characterised in that：The cortical material
15~18wt% of composite monofilament is accounted for, core material accounts for 82~85wt% of composite monofilament.
3. low melting point high intensity PE-PP core-sheath monofilament according to claim 1, it is characterised in that：The antioxidant
Master batch is 70 by weight ratio:30 polypropylene powder and antioxidant UV531 is melted by double screw extruder, sheared, mediated, sent
Material, tie rod, pelletizing and antioxidant master batch is made.
4. a kind of preparation method of low melting point high intensity PE-PP core-sheath monofilament as claimed in claim 1, including following step
Suddenly：
（1）HDPE polyethylene, Masterbatch and antioxidant master batch are measured in proportion, pour into mixing equipment carry out batch mixing it is uniform,
Pour into the hopper of cortex supercharging screw extruder, be sent into metering pump by its melting shearing measures in proportion, is sent into Compound spinning
In the cortex chamber of composite component in silk case；
（2）PP polypropylene, Masterbatch and antioxidant master batch are measured in proportion, pour into mixing equipment carry out batch mixing it is uniform, fall
In the hopper for entering sandwich layer supercharging screw extruder, metering pump is sent into by its melting shearing and is measured in proportion, is sent into composite spinning
In the sandwich layer chamber of composite component in case；
（3）Spinning, cortex cladding core are carried out in the composite component that cortex raw material and core layer raw material enter in composite spinning box at the same time
The precursor of layer formation skin-core structure, which enters in cooling water tank, to be cooled down；
（4）The precursor cooled down from cooling water tank oils by horizontal flat traction machine, drawing-off, sizing, coiling and molding；
（5）Temperature control：a）Cortex screw extruder temperature control is at 130~220 DEG C；b）Sandwich layer screw extruder temperature control
At 180~240 DEG C；c）Composite spinning box temperature control is at 180~220 DEG C；d）Drafting machine temperature control is at 80~160 DEG C；
（6）The control of drafting multiple：7~10 times of general times；1 3~6 times of area；2 1.5~2 times of areas；3 1.2~2 times of areas.
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| CN201711377149.1A CN107988653A (en) | 2017-12-19 | 2017-12-19 | A kind of low melting point high intensity PE-PP core-sheath monofilament and preparation method thereof |
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| CN201711377149.1A CN107988653A (en) | 2017-12-19 | 2017-12-19 | A kind of low melting point high intensity PE-PP core-sheath monofilament and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868523A (en) * | 2019-02-01 | 2019-06-11 | 扬州石化有限责任公司 | A kind of PP powder prepares the production method of ES fiber |
| CN113403720A (en) * | 2021-06-25 | 2021-09-17 | 广东合心色纺新材料有限公司 | Color-changing yarn and preparation method thereof |
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| CN104878475A (en) * | 2015-06-10 | 2015-09-02 | 马海燕 | Large-diameter sheath-core type composite monofilament and production method thereof |
| CN105308227A (en) * | 2013-07-23 | 2016-02-03 | 宇部爱科喜模株式会社 | Method for producing drawn conjugated fiber, and drawn conjugated fiber |
| CN106048777A (en) * | 2016-07-18 | 2016-10-26 | 无锡盛纤特邦工业材料有限公司 | Multi-purpose sheath-core composite monofilament as well as production method and application thereof |
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2017
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| CN105308227A (en) * | 2013-07-23 | 2016-02-03 | 宇部爱科喜模株式会社 | Method for producing drawn conjugated fiber, and drawn conjugated fiber |
| CN104878475A (en) * | 2015-06-10 | 2015-09-02 | 马海燕 | Large-diameter sheath-core type composite monofilament and production method thereof |
| CN106048777A (en) * | 2016-07-18 | 2016-10-26 | 无锡盛纤特邦工业材料有限公司 | Multi-purpose sheath-core composite monofilament as well as production method and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868523A (en) * | 2019-02-01 | 2019-06-11 | 扬州石化有限责任公司 | A kind of PP powder prepares the production method of ES fiber |
| CN113403720A (en) * | 2021-06-25 | 2021-09-17 | 广东合心色纺新材料有限公司 | Color-changing yarn and preparation method thereof |
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