CN108130612A - The polymer filament and its production method of environmental protection - Google Patents

The polymer filament and its production method of environmental protection Download PDF

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Publication number
CN108130612A
CN108130612A CN201711389650.XA CN201711389650A CN108130612A CN 108130612 A CN108130612 A CN 108130612A CN 201711389650 A CN201711389650 A CN 201711389650A CN 108130612 A CN108130612 A CN 108130612A
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CN
China
Prior art keywords
temperature
environmental protection
monofilament
polyesteramide
filament
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201711389650.XA
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Chinese (zh)
Inventor
李玉清
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Haian Kehao Textile Co Ltd
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Haian Kehao Textile Co Ltd
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Priority to CN201711389650.XA priority Critical patent/CN108130612A/en
Publication of CN108130612A publication Critical patent/CN108130612A/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/02—Heat treatment
    • 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
    • D01D5/08—Melt spinning methods
    • 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
    • D01D5/08—Melt spinning methods
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D01D5/0885—Cooling filaments, threads or the like, leaving the spinnerettes by means of a liquid
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/12—Stretch-spinning methods
    • D01D5/14—Stretch-spinning methods with flowing liquid or gaseous stretching media, e.g. solution-blowing
    • 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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Artificial Filaments (AREA)

Abstract

The invention discloses the polymer filaments and its production method of environmental protection, a diameter of 0.25~1.5mm of the polyesteramide monofilament, fracture strength is more than 4.5CN/dtex, elongation at break is 25%~40%, palliating degradation degree (soil moisture 61.5%, 27 DEG C of temperature, 29 days, degradation rate >=3.5%)；Above-mentioned polyesteramide monofilament is prepared via a method which：Polyesteramide resin with additive is mixed, is squeezed out through screw rod melt extruder, the melt of extrusion is cooled down using water-cooling pattern, obtains spun filament, spun filament stretches successively through superheated water, hot wind stretches and heat setting step obtains environmentally friendly polyesteramide monofilament.The environmentally friendly polyesteramide monofilament of the present invention has the characteristics that high-strength and high ductility, and preparation process is simple, at low cost, suitable for related fields such as fishery, agricultural nets.

Description

The polymer filament and its production method of environmental protection
Technical field
The present invention relates to polymer filaments, and in particular to environmentally friendly polyesteramide monofilament and the method for producing the monofilament.
Background technology
In general, fishing line, fishing net, agricultural net etc. are excellent using processability, intensity, durability, heat resistance etc. The synthetic fibers such as polyamide monofilament, but such synthetic fibers can cause tight due to not having decomposability in a natural environment The problems such as marine pollution of weight.Most of natural fiber has biodegradability, but can not show fishing line, fishing net, agricultural With high performances such as the high intensity required by net etc..
Polyesteramide combines the advantages of polyester and polyamide, not only with biological degradability, but also with high-strength, heat-resisting etc. excellent Different physical and mechanical property.But polyesteramide is manufactured into monofilament needs, by polyesteramide melt spinning, then to stretch, at present Also be difficult to be fully improved by this method the monofilament of mechanical strength.It is during the polyamide segment design of polyester-amide copolymer The lossless biological degradability with the copolymer, chain length will shorten.Therefore, polyester-amide copolymer is compared with polyamide homopolymer It is that crystallinity is low, be also difficult to happen oriented crystalline or crystallization rate is slow.Therefore, although can make to obtain by chilling non- Crystallinity is stretched for drawn yarn, but the orientation in noncrystalline portion can not be made fully to be fixed up, and never cannot fully be improved mechanical strong Degree.
Polyesteramide is not yet used as raw material at present, carries out the report that melt spinning prepares major diameter monofilament.
Invention content
The technical problem to be solved in the present invention is to provide the polymer filaments of environmental protection, have higher fracture strength and fracture Elongation is 59.3% in soil moisture, and 28 DEG C of temperature, the time is degradation rate >=3.5% under conditions of 28 days.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
Environmental protection polymer monofilament, innovative point are：The monofilament contains and contains on the molecular backbone of 95wt%~100wt% There are the polyesteramide of amido bond and ester bond and 0wt%~5wt% additives；A diameter of 0.25~1.5mm of the monofilament, it is described The fracture strength of monofilament is more than 4.5CN/dtex, and elongation at break is 25%~40%, is 59.3% in soil moisture, temperature 28 DEG C, the time is degradation rate >=3.5% under conditions of 28 days.
Further, the polyesteramide is linear polyester amide, and molecular weight is 20000~40000.
Further, the additive is nano-titanium dioxide or Nano particles of calcium carbonate.Nanometer is added in polyesteramide Titanium dioxide or nano-calcium carbonate have the function of activeness and quietness, improve the intensity and toughness of monofilament.
Further, the additive further includes photosensitizing agents, and quality is the 0~3% of monofilament gross mass.
Another object of the present invention is to provide the production method of environmental protection polymer monofilament, mixed including raw material, is dry, molten Melt extrusion, water cooling, hot water stretching, hot wind stretching, thermal finalization and coiling technique, it is specific as follows：
(1) raw material mixes：Polyesteramide and additive are proportionally uniformly mixed；
(2) it is dry：Mixed raw material is dried on drying machine to moisture content≤45ppm, and drying temperature is 120~180 ℃；
(3) melting extrusion：It is melted after raw material drying through screw rod melt extruder with 30~100 kgs/hour of extrusion capacity Extrusion obtains spun filament, and melt temperature is 250~290 DEG C；
(4) water cooling：Spun filament is cooled to 30~60 DEG C through 5~60 DEG C of water or aqueous solution；
(5) hot water stretches：Spun filament after cooling carries out stretching together in hot bath, and draw ratio is 4.0~6.0, Hot water temperature is 70~90 DEG C；
(6) hot wind stretches：Draw ratio is 1.2~1.6 times, and temperature is 120~180 DEG C；
(7) thermal finalization：Heat setting temperature is 180~260 DEG C；
(8) it batches：Monofilament after sizing is wound up into the speed of 80~200m/min on bobbin.
Further, the screw rod melt extruder is come into being with 40~60 kgs/hour of extrusion capacity melting extrusion Silk, melt temperature are 250~290 DEG C；
Further, the spun filament is cooled to 40~50 DEG C through 15~40 DEG C of water or aqueous solution.
Further, the draw ratio that the hot water stretches is 4~5, and hot water temperature is 70~90 DEG C；The drawing that hot wind stretches It is 1.3~1.5 to stretch multiple, and temperature is 130~150 DEG C；Heat setting temperature is 200~220 DEG C, and coiling speed is 100~120m/ min。
Beneficial effects of the present invention：Compared with prior art, environmentally friendly polyesteramide monofilament provided by the invention, was preparing Addition enhancing, the nano-titanium dioxide of toughening or nano-calcium carbonate or photosensitizing agents in journey, by using suitable technological parameter, Monofilament of the diameter between 0.05~2.0mm is prepared, the environmentally friendly polyesteramide monofilament of preparation has the characteristics that high-strength and high ductility, breaks Resistance to spalling is more than 4.5CN/dtex, and elongation at break is 25%~40%, is 59.3% in soil moisture, 28 DEG C of temperature, the time It is degradation rate >=3.5% under conditions of 28 days.
Specific embodiment
Explanation, but and the non-limiting present invention are further explained to the invention content of the present invention with reference to specific embodiment Protection domain.
Embodiment 1
Using molecular weight be 25000 polyesteramide (Dupont) resin on drying machine dry to moisture content≤ 45ppm, drying temperature are 130 DEG C；Then it is obtained just with 35 kgs/hour of extrusion capacity melting extrusion through screw rod melt extruder Raw silk, melt temperature are 260 DEG C；Spun filament is water-cooled to 30 DEG C through 10 DEG C；Spun filament after cooling carries out in hot bath It stretches together, draw ratio is 4.0 times, and hot water temperature is 70 DEG C；Then the stretching of two hot winds is carried out, draw ratio is 1.2 times, Temperature is 70 DEG C；After spun filament stretching thermal finalizations are carried out in 185 DEG C of conditions；It is wound up on bobbin with the speed of 90m/min again.
The a diameter of 0.12mm for the monofilament that the present embodiment obtains, fracture strength 3.8CN/dtex, elongation at break are 27.8%, (soil moisture 61.5%, 27 DEG C of temperature, 29 days, degradation rate 3.4%).
Embodiment 2
Molecular weight using 96wt% is 30000 polyesteramide (Dupont) raw material and the nanometer titanium dioxide of 4wt% Titanium is uniformly mixed, and is dried on drying machine to moisture content≤45ppm, drying temperature is 140 DEG C；Then through screw rod melt extruder Spun filament is obtained with 50 kgs/hour of extrusion capacity melting extrusion, melt temperature is 265 DEG C；Spun filament is through 20 DEG C of emulsion But to 40 DEG C；Spun filament after cooling carries out stretching together in hot bath, and draw ratio is 4.5 times, and hot water temperature is 75 DEG C； Then the stretching of two hot winds is carried out, draw ratio is 1.4 times, 140 DEG C of temperature；Spun filament carries out hot in 200 DEG C of conditions after stretching Sizing；It is wound up on bobbin with the speed of 120m/min again.
The a diameter of 0.15mm for the monofilament that the present embodiment obtains, fracture strength 4.1CN/dtex, elongation at break are 26.7%, soil moisture 61.5%, 27 DEG C of temperature, 29 days, degradation rate 3.6%.
Embodiment 3
Molecular weight using 96wt% is 35000 polyesteramide (Dupont) raw material and the nano-calcium carbonate of 4wt% It is uniformly mixed, is dried on drying machine to moisture content≤45ppm, drying temperature is 150 DEG C；Then through screw rod melt extruder with 50 kgs/hour of extrusion capacity melting extrusion obtains spun filament, and melt temperature is 270 DEG C；Spun filament is water-cooled to through 20 DEG C 40℃；Spun filament after cooling carries out stretching together in hot bath, and draw ratio is 5.0 times, and hot water temperature is 80 DEG C；Then The stretching of two hot winds is carried out, draw ratio is 1.4 times, 140 DEG C of temperature；After spun filament stretching thermal finalizations are carried out in 210 DEG C of conditions； It is wound up on bobbin with the speed of 130m/min again.
The a diameter of 0.18mm for the monofilament that the present embodiment obtains, fracture strength 4.3CN/dtex, elongation at break are 25.6%, soil moisture 61.5%, 27 DEG C of temperature, 29 days, degradation rate 3.5%.
Embodiment 4
Using polyesteramide (Dupont) raw material and the 2wt% nano-titanium dioxides that 95wt% molecular weight is 45000 and The photosensitizing agents (PAS~33) of 3wt% are uniformly mixed, and are dried on drying machine to moisture content≤45ppm, drying temperature 130 ℃；Then spun filament, melt temperature 260 are obtained with 40 kgs/hour of extrusion capacity melting extrusion through screw rod melt extruder ℃；Spun filament is cooled to 50 DEG C through 40 DEG C of emulsion；Spun filament after cooling carries out stretching together in hot bath, stretches again Number is 5.2 times, and hot water temperature is 82 DEG C；Then the stretching of two hot winds is carried out, draw ratio is 1.5 times, and temperature is 165 DEG C；Just After raw silk stretching thermal finalizations are carried out in 230 DEG C of conditions；It is wound up on bobbin with the speed of 150m/min again.
The a diameter of 0.14mm for the monofilament that the present embodiment obtains, fracture strength 4.8CN/dtex, elongation at break are 24.3%, soil moisture 61.5%, 27 DEG C of temperature, 29 days, degradation rate 3.8%.
Embodiment 5
Using polyesteramide (Dupont) raw material and the 0.5wt% nano-calcium carbonates that 97wt% molecular weight is 50000 and The photosensitizing agents (PAS~33) of 2.5wt% are uniformly mixed, and are dried on drying machine to moisture content≤45ppm, drying temperature is 175℃；Then spun filament is obtained with 32 kgs/hour of extrusion capacity melting extrusion through screw rod melt extruder, melt temperature is 280℃；Spun filament is water-cooled to 58 DEG C through 55 DEG C；Spun filament after cooling carries out stretching together in hot bath, stretches again Number is 5.8 times, and hot water temperature is 88 DEG C；Then the stretching of two hot winds, draw ratio 1.6 are carried out, temperature is 178 DEG C；It is nascent After silk stretching thermal finalizations are carried out in 255 DEG C of conditions；It is wound up on bobbin with the speed of 190m/min again.
The a diameter of 0.14mm for the monofilament that the present embodiment obtains, fracture strength 4.5CN/dtex, elongation at break are 26.3%, soil moisture 61.5%, 27 DEG C of temperature, 29 days, degradation rate 3.7%.
Above-described embodiment is merely illustrative of the technical solution of the present invention rather than the design of the present invention and protection domain is carried out It limits, those of ordinary skill in the art are modified or replaced equivalently technical scheme of the present invention, without departing from technology The objective and range of scheme, should all cover in scope of the presently claimed invention.

Claims (9)

1. the polymer filament of environmental protection, it is characterised in that：The monofilament contains and contains on the molecular backbone of 95wt%~100wt% Amido bond and the polyesteramide of ester bond and 0wt%~5wt% additives；A diameter of 0.25~1.5mm of the monofilament, the list The fracture strength of silk is more than 4.5CN/dtex, and elongation at break is 25%~40%, is 59.3% in soil moisture, temperature 28 DEG C, the time is degradation rate >=3.5% under conditions of 28 days.
2. the polymer filament of environmental protection according to claim 1, it is characterised in that：The polyesteramide is linear polyester acyl Amine, molecular weight are 20000~40000.
3. the polymer filament of environmental protection according to claim 1, it is characterised in that：The additive is nano-titanium dioxide Or Nano particles of calcium carbonate.
4. the polymer filament of environmental protection according to claim 3, it is characterised in that：The additive further includes photaesthesia Agent, quality are the 0~3% of monofilament gross mass.
5. realize the production method of the polymer filament of environmental protection described in claim 1, it is characterised in that：Mixed including raw material, Drying, melting extrusion, water cooling, hot water stretching, hot wind stretching, thermal finalization and coiling technique, it is specific as follows：
(1) raw material mixes：Polyesteramide and additive are proportionally uniformly mixed；
(2) it is dry：Mixed raw material is dried on drying machine to moisture content≤45ppm, and drying temperature is 120~180 DEG C；
(3) melting extrusion：Through screw rod melt extruder with 30~100 kgs/hour of extrusion capacity melting extrusion after raw material drying Spun filament is obtained, melt temperature is 250~290 DEG C；
(4) water cooling：Spun filament is cooled to 30~60 DEG C through 5~60 DEG C of water or aqueous solution；
(5) hot water stretches：Spun filament after cooling carries out stretching together in hot bath, and draw ratio is 4.0~6.0, hot water Temperature is 70~90 DEG C；
(6) hot wind stretches：Draw ratio is 1.2~1.6 times, and temperature is 120~180 DEG C；
(7) thermal finalization：Heat setting temperature is 180~260 DEG C；
(8) it batches：Monofilament after sizing is wound up into the speed of 80~200m/min on bobbin.
6. the production method of the polymer filament of environmental protection according to claim 5, it is characterised in that：In the step (4) Aqueous solution be polyacrylamide amine emulsifier.
7. the production method of the polymer filament of environmental protection according to claim 5, it is characterised in that：The screw rod melting is squeezed Go out machine and spun filament is obtained with 45~55 kgs/hour of extrusion capacity melting extrusion, melt temperature is 250~290 DEG C.
8. the production method of the polymer filament of environmental protection according to claim 5, it is characterised in that：The spun filament is through 25 ~35 DEG C of water or aqueous solution is cooled to 30~40 DEG C.
9. the production method of the polymer filament of environmental protection according to claim 5, it is characterised in that：What the hot water stretched Draw ratio is 4~5 times, and hot water temperature is 70~90 DEG C；The draw ratio that hot wind stretches for 1.3~1.5, temperature for 130~ 150℃；Heat setting temperature is 200~220 DEG C, and coiling speed is 100~120m/min.
CN201711389650.XA 2017-12-21 2017-12-21 The polymer filament and its production method of environmental protection Withdrawn CN108130612A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711389650.XA CN108130612A (en) 2017-12-21 2017-12-21 The polymer filament and its production method of environmental protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711389650.XA CN108130612A (en) 2017-12-21 2017-12-21 The polymer filament and its production method of environmental protection

Publications (1)

Publication Number Publication Date
CN108130612A true CN108130612A (en) 2018-06-08

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CN201711389650.XA Withdrawn CN108130612A (en) 2017-12-21 2017-12-21 The polymer filament and its production method of environmental protection

Country Status (1)

Country Link
CN (1) CN108130612A (en)

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