CN111676588B - Preparation method of light sky blue long-acting antifouling net containing grafted polyguanidine salt - Google Patents
Preparation method of light sky blue long-acting antifouling net containing grafted polyguanidine salt Download PDFInfo
- Publication number
- CN111676588B CN111676588B CN202010384978.8A CN202010384978A CN111676588B CN 111676588 B CN111676588 B CN 111676588B CN 202010384978 A CN202010384978 A CN 202010384978A CN 111676588 B CN111676588 B CN 111676588B
- Authority
- CN
- China
- Prior art keywords
- sky blue
- long
- light sky
- antifouling
- acting
- 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.)
- Active
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/02—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof made from particular materials
-
- 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
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/02—Spinnerettes
-
- 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
- D01D5/12—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
- 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
- D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
-
- 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
- D01F1/04—Pigments
-
- 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
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
-
- 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
- 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
- D01F8/16—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds as constituent
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/06—Braid or lace serving particular purposes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
- D06C7/02—Setting
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Artificial Filaments (AREA)
Abstract
The invention provides a preparation method of a light sky blue long-acting anti-fouling net containing grafted polyguanidine salt, which comprises five steps of light sky blue color master batch preparation, light sky blue modified HDPE composite material preparation, melt spinning, drafting and heat setting and long-acting anti-fouling net preparation. Firstly, processing 5000S type high-density polyethylene resin, ultramarine pigment and A-101 type titanium dioxide serving as raw materials to prepare light sky blue master batch; then mixing and modifying the L501 type HDPE resin, the grafted polyguanidine salt/polyethylene granules, zinc stearate, an antioxidant KY-7910, turpentine and light sky blue master batches, and then drawing to obtain light sky blue long-acting antifouling tows; finally, obtaining the light sky blue long-acting antifouling line through a specific spinning process, and obtaining the light sky blue long-acting antifouling net containing the grafted polyguanidine salt through a specific net weaving process. The mesh fracture strength of the long-acting antifouling mesh prepared from the long-acting antifouling mesh wire meets the indexes of GB/T18673 standard qualified products, and is improved by 17.9 percent compared with the mesh fracture strength of ordinary PE mesh qualified products.
Description
Technical Field
The invention belongs to the technical field of mariculture nets, and particularly relates to a preparation method of a light sky blue long-acting anti-fouling net containing grafted polyguanidine salt.
Background
China is a big cage culture country, and the number of the culture cages in the east sea area is hundreds of thousands of cages; the net cage culture industry makes great contribution to aquatic protein supply, fisherman reptilization and transfer, blue granary construction, ocean equity maintenance and the like. However, the technical problems of antifouling of the net sheets and the like are always faced in the development of the net cage aquaculture industry, and the net sheets can be attached by fouling organisms after being used for a period of time, so that the water body exchange inside and outside the net cage, the growth of cultured fishes and the quality safety of the cultured fishes are influenced. If the net sheets are seriously stained, not only can the cultured fishes frequently suffer from diseases and even die, but also the quality of the cultured fishes and the safety of net cage facilities and the like are seriously influenced. Therefore, the fouling of the mesh becomes a neck problem in the development of cage culture, which seriously restricts the sustainable and healthy development of the whole industry.
The net is a term in the technical field of aquaculture net cages and refers to a section of flaky braided fabric with a mesh structure; a mesh sheet having antifouling properties is called an antifouling mesh sheet (simply referred to as an antifouling mesh); the mesh with long-acting antifouling property is called long-acting antifouling mesh (short long-acting antifouling mesh); monofilaments having long-lasting antifouling properties are called long-lasting antifouling yarns. The anti-fouling of the mesh is to prevent marine organisms from attaching to and growing on the surface of the mesh or to separate the marine organisms from the surface of the mesh by using a physical or chemical method. The existing antifouling methods comprise a manual cleaning method, a mechanical cleaning method, an antifouling paint method, a metal mesh antifouling method and the like. Biofouling has become a worldwide problem for mariculture.
Guanidine refers to a compound containing guanidine group in the structure, guanidine hydrate is a base, a monobasic organic base equivalent to sodium hydroxide, and guanidine ions are combined with acid radical ions to form guanidine salt. The organic guanidine compound is also widely used as a bactericide, and the sterilization mechanism is as follows: when the negatively charged bacteria are contacted with the cationic organic guanidine compound, the negatively charged bacteria are attracted by the cations, so that the free movement of the bacteria is restrained, and the respiratory function of the bacteria is inhibited, namely, the 'contact death' occurs. At present, research mainly focuses on synthesis and antibacterial activity test research of novel organic guanidine derivatives.
Biofouling is the induced occurrence of biofilms composed of bacteria, so inhibiting the formation of bacterial biofilms is an important means to solve biofouling. The polyguanidine salt is a cationic polymer, and the final sterilization purpose is realized by electrostatic attraction with cell membranes with bacteria. Accordingly, the polyguanidine salt can be regarded as a marine antifouling material with great development potential. Heretofore, no literature reports exist on studies on the structure and antifouling properties of guanidine organic polymers introduced into a mesh material.
In the prior art, a mesh is generally processed by common Polyethylene (PE) monofilaments. The common PE monofilament is produced by using single High Density Polyethylene (HDPE) granules as raw materials and hot water as a drawing medium through a traditional melt drawing process, and the standard index of the knot strength of the common PE monofilament is 3.6 cN/dtex. The net sheets processed by the common PE monofilaments have general comprehensive performance and large raw material consumption, so that the safety of the net sheets is poor, the wind wave resistance requirements of net cages under severe sea conditions such as typhoon and the like cannot be met, and the net cage can have accidents of breaking the net and escaping; meanwhile, the net sheets processed by the common PE monofilaments have no antifouling performance, and the net sheets can be attached by fouling organisms such as oysters and the like in the culture production, so that the water body exchange inside and outside the net cage and the fish culture safety are influenced. If net sheets of the net cage are seriously adhered by fouling organisms, even the diseases of fishes cultured in the net cage are frequently increased and even die, and the quality of the fishes cultured in the net cage and the safety of facilities and the like are further influenced, and the two aspects become bottleneck problems of the development of the net cage culture industry.
In addition, black meshes are mostly adopted in the prior art, the color of the black meshes is similar to that of the surrounding aquaculture water body, and particularly in the aquaculture sea area with more sediment, the aquaculture objects are not easy to identify and impact the fishing net, so that fish body damage is caused.
With the development of the technology in the field, the net cage culture industry has higher requirements on the comprehensive properties of the color, antifouling property, wind wave resistance and the like of the net sheets. The technical field is far from the technical fields of textile, fishing gear and the like, and the technologies of monofilament production methods and the like in the fields are not suitable for the technical field. The processing method of the new long-acting antifouling net has been a long-pending technical problem in the technical field.
Disclosure of Invention
The invention aims to solve the problems and provides a preparation method of a light sky blue long-acting antifouling net containing grafted polyguanidine salt, so that the antifouling performance, net strength and wind wave resistance of net cages and nets are improved, the safety of net cage facilities and high exchange rate of internal and external water bodies are ensured, and the upgrading of antifouling technology, the consumption reduction and the resistance reduction of aquaculture production and the healthy growth of cultured fishes are assisted. In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the invention provides a preparation method of a light sky blue long-acting antifouling net containing grafted polyguanidine salt, which comprises the following steps:
A. preparation of light sky blue master batch
The light sky blue master batch is prepared by processing 5000S type high-density polyethylene resin, ultramarine pigment and A-101 type titanium dioxide which are used as raw materials, wherein the addition amount of the ultramarine pigment is 0.624 per mill of the weight of the 5000S type high-density polyethylene resin, and the addition amount of the A-101 type titanium dioxide is 0.539 per mill of the weight of the 5000S type high-density polyethylene resin.
B. Preparation of light sky blue modified HDPE composite material
Weighing L501 type HDPE resin, grafted polyguanidine salt/polyethylene granules, zinc stearate, an antioxidant KY-7910, turpentine and light sky blue master batches, premixing, pouring into a high-speed kneading pot, kneading at a high speed of 580-620 r/min for 28-32 min, and discharging when the temperature of the mixture in the high-speed kneading pot rises to 70-73 ℃ to obtain the light sky blue modified HDPE composite material.
Wherein the addition amount of the grafted polyguanidine salt/polyethylene granules is 10-50 percent of the weight of the L501 type HDPE resin, the addition amount of zinc stearate is 1.2-2.8 percent of the weight of the L501 type HDPE resin, the addition amount of an antioxidant KY-7910 is 1.5-3 per mill of the weight of the L501 type HDPE resin, the addition amount of turpentine is 2.5-3.5 per mill of the weight of the L501 type HDPE resin, the addition amount of light sky blue master batches is 5-6 per mill of the weight of the L501 type HDPE resin,
C. melt spinning
The light sky blue modified HDPE composite material is melted and extruded by a single screw extruder in the temperature control ranges of the first zone, the second zone, the third zone, the fourth zone and the fifth zone of the charging barrel electric heating zone at 210-220 ℃, 240-245 ℃, 260-265 ℃, 270-275 ℃ and 270-275 ℃; and the extrudate is metered by a metering pump additionally arranged at a single screw outlet and then is melted and extruded from a spinneret orifice, the temperature range of the head of the single screw extruder is 270-272 ℃, and the aperture of the spinneret orifice on the spinneret plate is 0.77-0.84 mm.
D. Drawing and heat setting
Cooling and pre-drafting the extruded primary filament by using water at a low temperature of between 10 and 40 ℃ and a first drafting roller, and thermally drafting the pre-drafted filament for four times by using a first drafting water bath at a high temperature of between 97.0 and 99.9 ℃, a second drafting hot air box at a high temperature of between 90 and 110 ℃, a third drafting hot air box at a high temperature of between 90 and 149 ℃ and a fourth drafting hot air box, wherein the total drafting multiple is controlled to be between 9.0 and 16.0 times; and then the mixture is coiled after being subjected to heat setting in a constant temperature box at the temperature of 90-120 ℃ to obtain the light sky blue long-acting antifouling tows.
E. Preparation of long-acting antifouling net
The light sky blue long-acting antifouling tows are divided into light sky blue long-acting antifouling yarns, and the yarn dividing tension is controlled to be 1.6-7.3% of the breaking strength of the light sky blue long-acting antifouling yarns; determining the number x of the yarns for processing the strands, and primarily twisting the x light sky blue long-acting antifouling yarns with an internal twist of 7T/m-13T/m by using a stranding machine to obtain light sky blue long-acting antifouling strands with an S twisting direction; three S-twist light sky blue long-acting antifouling strands are processed into light sky blue long-acting antifouling threads with Z twist and external twist in the range of 40T/m-128T/m by a three-strand twisting machine.
Processing the light sky blue long-acting antifouling threads into an antifouling net sheet with a single dead knot type and a mesh length range of 2.3cm-12cm by using a double-hook type net weaving machine; and finally, carrying out transverse heat setting treatment on the antifouling net sheet by using a transverse setting machine and taking mesh breaking strength of 0.16-0.35 times as pretension to obtain the light sky blue long-acting antifouling net containing the grafted polyguanidine salt.
Preferably, in the step B, the L501 type HDPE resin is wire drawing grade, the melt index ranges from 0.4g/10min to 1.9g/10min, and the grafting rate of the polyguanidine salt in the grafted polyguanidine salt/polyethylene granules is 20%.
And pre-mixing the light sky blue master batches, pouring the pre-mixed light sky blue master batches into a high-speed kneading pot, kneading the mixture at a high speed of 600r/min for 30min, and discharging when the temperature of the mixture in the high-speed kneading pot rises to 70 ℃.
In the step C, the length-diameter ratio range of the screw of the single screw extruder is 1:32, the aperture of a spinneret orifice on a spinneret plate is 0.77mm-0.84mm, and the number of the orifices is 180.
In the step D, the size of the first drafting water bath is 2.5m long multiplied by 0.9m wide multiplied by 1.0m high, the size of the second drafting hot air box is 3m long multiplied by 0.9m wide multiplied by 1.0m high, the size of the third drafting hot air box is 3.5m long multiplied by 0.9m wide multiplied by 0.5m high, and the size of the fourth drafting hot air box is 4.0m long multiplied by 0.9m wide multiplied by 0.5m high; the dimensions of the heat-setting oven were 1.3m long by 0.6m wide by 0.5m high.
In step E, according to the three-strand wire specification: the number x of the wires for strand processing is determined by ρ linear density × x number of the wires for strand × 3 mesh wire number.
Action and Effect of the invention
The invention creates a technical scheme of a light sky blue long-acting antifouling net containing grafted polyguanidine salt, a large number of pioneering innovation test argumentations are carried out under the conditions of different wire drawing processes, different wire drawing raw materials, different production costs, different wire net processes and the like, the technical scheme of the invention is obtained only through countless hard labor creativity, the antifouling performance, the net piece strength and the wind wave resistance of the product of the invention are improved, the safety of net cage facilities and the high exchange rate of internal and external water bodies are ensured, the upgrading of the antifouling technology of the net cage aquaculture industry, the consumption reduction and the resistance reduction of the aquaculture production and the healthy growth of aquaculture fishes are assisted, and the technical scheme is as follows:
(1) in the aspect of raw material proportion:
according to the invention, the graft polyguanidine salt/polyethylene material with a specific ratio is added into the wire drawing raw material to construct the macromolecular guanidine salt graft structure with the long-acting antifouling structure, compared with the traditional micromolecular antifouling agent, the macromolecular guanidine salt graft structure is not easy to lose effectiveness due to gradual seepage, and the long-acting antifouling of the light sky blue long-acting antifouling silk and the mesh product thereof is realized. The relevant antifouling test results show that the mesh produced by the method can effectively prevent fouling within 6 months, and the antifouling effect is very obvious.
Zinc stearate in a specific proportion is added into the raw materials and is used as a stabilizer to meet the lubricating requirement among the raw materials during the preparation of a wire drawing product, so that the spinnability and the production efficiency of the light sky blue long-acting antifouling wire are improved; the antioxidant KY-7910 with a specific proportion is added into the raw materials, so that the product is not degraded in the processing process, the oxidation resistance of the product is improved, and the adaptability of the product is improved; the technical scheme of the light sky blue color master batch realizes the light sky blue display of the net, reduces the probability of the cultured fishes colliding with the cultured net, and improves the safety of the cultured fishes.
(2) In the aspect of monofilament preparation
The invention innovatively adopts special materials with a specific proportion as the wire drawing raw materials, obtains the special light sky blue modified high-density polyethylene composite material after high-speed kneading at a specific temperature, time and rotating speed, ensures smooth wire drawing production, improves the spinnability, the fluidity, the antifouling performance and the extrusion quality of the wire drawing raw materials, and greatly improves the wire drawing efficiency and the extrusion quality, such as no wire breakage phenomenon in normal wire drawing production.
After the light sky blue long-acting antifouling tows are subjected to heat setting in a thermostat of special specification, the light sky blue long-acting antifouling tows are coiled by a take-up machine of a torque motor, so that the variation coefficient of a silk product is reduced, and the quality of the silk product is improved.
The comprehensive performance of the light sky blue long-acting antifouling filament produced under the same draft multiple is obviously higher than that of a common PE monofilament in the prior art, and if test results show that: the node strength antifouling monofilament of the light sky blue long-acting antifouling filament has a remarkable node strength advantage, and the node strength of the antifouling monofilament is improved by 19.2% compared with that of a common PE monofilament.
(3) Aspect of netting weaving
The invention adopts special yarn making technology, such as specific internal and external twist, and improves the comprehensive performance of the light sky blue long-acting antifouling yarn. The related test results show that the knot strength of the light sky blue long-acting antifouling line is improved by 30.7 percent compared with the standard index of a polyethylene mesh line with the same diameter in the prior art; under the condition of equal strength, the light sky blue long-acting antifouling line with small specification can replace a PE (polyethylene) net line in the prior art, and the energy-saving and resistance-reducing effects of cage culture production are assisted.
The invention adopts special netting process, such as specific net knot type, net mesh size, transverse shaping process and the like, and ensures that the single dead knot type antifouling net sheet has smooth appearance, stable net mesh shape and consistent net mesh size; the water exchange rate inside and outside the net cage is improved through transverse shaping, the improvement of the water exchange rate inside and outside the net cage facilities and the healthy growth of cultured fishes are ensured, and the comprehensive performances of the single-dead-knot type antifouling net piece, such as appearance quality, stress uniformity, unobstructed water exchange and the like, are greatly improved.
In conclusion, the invention innovatively prepares the light sky blue master batch by taking 5000S type high-density polyethylene resin produced by dry winnowing petrochemical, ultramarine pigment and A101 titanium dioxide as raw materials, then carries out wire drawing by a specific process, and greatly improves the crystallinity and the comprehensive performance of the product by the specific wire drawing process. The light sky blue long-acting antifouling yarn with the linear density of 31.3tex produced by the invention has good roundness, good appearance, high cost performance and high strength, the strength of a knot is as high as 4.03cN/dtex, and the standard index of the light sky blue long-acting antifouling yarn is improved by 11.9% compared with that of the traditional common PE yarn; the antifouling effect is good, and if the antifouling test result shows that compared with the common net cage made of PE monofilaments, the long-acting antifouling net produced by the invention has the advantage that the fouling organism attachment can be reduced by more than 20%.
The mesh fracture strength of the long-acting antifouling mesh prepared from the long-acting antifouling mesh wire meets the indexes of GB/T18673 standard qualified products, and is improved by 17.9 percent compared with the mesh fracture strength of ordinary PE mesh qualified products. The production practice or laboratory test results show that the long-acting antifouling net produced by the technical scheme of the invention not only can reduce the water resistance and the attachment amount of fouling organisms of the net cage net piece, but also can improve the antifouling performance of the net cage net piece on the premise of keeping the net cage net piece strength unchanged.
In conclusion, the product can greatly reduce the fouling organism attachment of the long-acting antifouling net and the incidence rate of the net-broken fish escape accidents under severe sea conditions, and assists the sustainable development of the net cage aquaculture industry.
Detailed Description
The present invention will be described in detail with reference to examples. The following examples should not be construed as limiting the scope of the invention.
This example describes the method of preparation of the present invention in detail, taking as an example the method of processing a light sky blue long-lasting antifouling net containing a graft polyguanidine salt, the specification of which is 31.3tex linear density × 10 strand filament number × 3 mesh strand number-55 mm mesh length.
Raw materials and equipment
The method of the invention comprises the following raw materials and equipment: spinning grade 5000S type high-density polyethylene resin, ultramarine pigment, A-101 titanium dioxide, graft polyguanidine salt/polyethylene master batch, L501(5000S) type HDPE resin, zinc stearate, antioxidant KY-7910, turpentine, a high-speed kneader, a metering pump, a single-screw extruder, a yarn splitter, a stranding machine, three-strand twisting, a double-hook type netting machine and a transverse setting machine.
The spinning grade 5000S type high-density polyethylene resin is a commercial product (a wire drawing raw material for the petrochemical production of a raisin), the ultramarine pigment is a commercial product, the A-101 type titanium dioxide is commercial titanium dioxide for spinning, the L501(5000S) type HDPE resin is a commercial product (a wire drawing raw material for the petrochemical production of Qilu, the melt index range of the wire drawing raw material is 0.4g/10min-1.9g/10min), grafted polyguanidine salt/polyethylene granules (the grafting rate of polyguanidine salt is 20%, the addition amount is 10% -50% of the weight of L501(5000S) type HDPE resin), zinc stearate (the addition amount is 1.2% -2.8% of the weight of L501(5000S) type HDPE resin), antioxidant KY-7910 (the volatile matter is less than or equal to 0.5% and the ash content is less than or equal to 0.1%, the addition amount is 1.5-3.0% of the weight of L501(5000S) type HDPE resin), and turpentine oil (the addition amount is 2.5-3.5% of the weight of L501(5000S) type HDPE resin).
Second, preparation process
The invention provides a preparation method of a light sky blue long-acting antifouling net containing grafted polyguanidine salt, which comprises the following steps:
A. preparation of light sky blue master batch
The light sky blue master batch is prepared by processing 5000S type high-density polyethylene resin, ultramarine pigment and A-101 type titanium dioxide serving as raw materials. Wherein the addition amount of ultramarine pigment is 0.624 per mill of the weight of 5000S type high density polyethylene resin, and the addition amount of A-101 type titanium dioxide is 0.539 per mill of the weight of 5000S type high density polyethylene resin.
B. Preparation of light sky blue modified HDPE composite material
Weighing L501 type HDPE resin, grafted polyguanidine salt/polyethylene granules, zinc stearate, an antioxidant KY-7910, turpentine and light sky blue master batches, premixing, pouring into a high-speed kneading pot, kneading at a high speed of 580-620 r/min for 28-32 min, and discharging when the temperature of the mixture in the high-speed kneading pot rises to 70-73 ℃ to obtain the light sky blue modified HDPE composite material.
Wherein the addition amount of the grafted polyguanidine salt/polyethylene granules is 10-50 percent of the weight of the L501 type HDPE resin, the addition amount of zinc stearate is 1.2-2.8 percent of the weight of the L501 type HDPE resin, the addition amount of an antioxidant KY-7910 is 1.5-3 per mill of the weight of the L501 type HDPE resin, the addition amount of turpentine is 2.5-3.5 per mill of the weight of the L501 type HDPE resin, the addition amount of light sky blue master batches is 5-6 per mill of the weight of the L501 type HDPE resin,
C. melt spinning
The light sky blue modified HDPE composite material is melted and extruded by a single screw extruder in the temperature control ranges of the first zone, the second zone, the third zone, the fourth zone and the fifth zone of the charging barrel electric heating zone at 210-220 ℃, 240-245 ℃, 260-265 ℃, 270-275 ℃ and 270-275 ℃; and the extrudate is metered by a metering pump additionally arranged at the outlet of the single screw rod and then is melted and extruded from a spinneret orifice. The temperature range of the single screw extruder head is 270-272 ℃, the length-diameter ratio is 1:32, the aperture of a spinneret orifice on a spinneret plate is 0.80mm, and the number of the orifices is 180.
D. Drawing and heat setting
Cooling and pre-drafting the extruded primary filament by using water at a low temperature of between 10 and 40 ℃ and a first drafting roller, and thermally drafting the pre-drafted filament for four times by using a first drafting water bath at a high temperature of between 97.0 and 99.9 ℃, a second drafting hot air box at a high temperature of between 90 and 110 ℃, a third drafting hot air box at a high temperature of between 90 and 149 ℃ and a fourth drafting hot air box, wherein the total drafting multiple is controlled to be between 9.0 and 16.0 times; and then the mixture is coiled after being subjected to heat setting in a constant temperature box at the temperature of 90-120 ℃ to obtain the light sky blue long-acting antifouling tows.
The first drafting water bath is 2.5m long multiplied by 0.9m wide multiplied by 1.0m high, the second drafting hot air box is 3m long multiplied by 0.9m wide multiplied by 1.0m high, the third drafting hot air box is 3.5m long multiplied by 0.9m wide multiplied by 0.5m high, and the fourth drafting hot air box is 4.0m long multiplied by 0.9m wide multiplied by 0.5m high; the dimensions of the heat-setting oven were 1.3m long by 0.6m wide by 0.5m high.
E. Preparation of long-acting antifouling net
The light sky blue long-acting antifouling tows are divided into light sky blue long-acting antifouling yarns, and the yarn dividing tension is controlled to be 1.6-7.3% of the breaking strength of the light sky blue long-acting antifouling yarns. The number of the yarns for processing the strands is determined to be 10 according to the specification of the three-ply yarn (31.3tex linear density multiplied by 10 yarn using number multiplied by 3 net yarn number), and 10 light sky blue long-acting antifouling yarns are firstly twisted by an internal twist of 7T/m-13T/m by a stranding machine to obtain the light sky blue long-acting antifouling strand with the S twist direction. The three-strand twisting machine is used for processing 3 light sky blue long-acting antifouling strands with S twisting direction into light sky blue long-acting antifouling threads with Z twisting direction and external twisting degree in the range of 40T/m-128T/m, and the specification is 31.3tex thread density multiplied by 10 strand silk number multiplied by 3 mesh strand number.
Then, processing the light sky blue long-acting antifouling threads into an antifouling net sheet with a single dead knot type and a mesh length of 55mm by using a double-hook type net weaving machine, wherein the specification is 31.3tex linear density multiplied by 10 strand using thread number multiplied by 3 strand number; and finally, carrying out transverse heat setting treatment on the antifouling net sheet by using a transverse setting machine and taking mesh breaking strength of 0.16-0.35 times as pretension, thus obtaining the light sky blue long-acting antifouling net containing the grafted polyguanidine salt.
The antifouling monofilament prepared by the preparation method has the linear density of about 31.3tex, good roundness, good appearance, high cost performance and high strength, and the knot strength of the antifouling monofilament reaches 4.03cN/dtex, which is improved by 19.2% compared with the standard index of common PE monofilament processed and produced by the traditional melt spinning process. The knot strength of the light sky blue long-acting antifouling line is improved by 30.7 percent compared with the standard index of a polyethylene mesh line with the same diameter in the prior art; under the condition of equal strength, the light sky blue long-acting antifouling line with small specification can replace a PE (polyethylene) net line in the prior art, and the energy-saving and resistance-reducing effects of cage culture production are assisted.
The mesh fracture strength of the long-acting antifouling mesh prepared from the long-acting antifouling mesh wire meets the indexes of GB/T18673 standard qualified products, and is improved by 17.9 percent compared with the mesh fracture strength of ordinary PE mesh qualified products.
The production practice or laboratory test results show that the long-acting antifouling net produced by the technical scheme of the invention not only can reduce the water resistance and the attachment amount of fouling organisms of the net cage net piece, but also can improve the antifouling performance of the net cage net piece on the premise of keeping the net cage net piece strength unchanged. The antifouling test result shows that compared with the common net cage made of PE monofilaments, the long-acting antifouling net produced by the invention has the advantage that the fouling organism attachment can be reduced by more than 20%.
In addition, the netting is light sky blue, is obviously different from the color of the surrounding culture water body, and the cultured objects can be well identified and far avoided. Compared with the currently and generally applied black net, the method can effectively reduce the impact times of fish culture on the net within the same observation time, and effectively improve the fishing adaptability of the net.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A preparation method of a light sky blue long-acting antifouling net containing grafted polyguanidine salt is characterized by comprising the following steps:
A. preparation of light sky blue master batch
5000S type high-density polyethylene resin, ultramarine pigment and A-101 type titanium dioxide are used as raw materials to process and manufacture light sky blue master batch, the additive amount of the ultramarine pigment is 0.624 per mill of the weight of the 5000S type high-density polyethylene resin, the additive amount of the A-101 type titanium dioxide is 0.539 per mill of the weight of the 5000S type high-density polyethylene resin,
B. preparation of light sky blue modified HDPE composite material
Weighing L501 type HDPE resin, grafted polyguanidine salt/polyethylene granules, zinc stearate, an antioxidant KY-7910, turpentine and light sky blue master batches, premixing, pouring into a high-speed kneading pot, kneading at a high speed of 580-620 r/min for 28-32 min, discharging when the temperature of the mixture in the high-speed kneading pot rises to 70-73 ℃, obtaining a light sky blue modified HDPE composite material,
wherein the addition amount of the grafted polyguanidine salt/polyethylene granules is 10-50 percent of the weight of the L501 type HDPE resin, the addition amount of zinc stearate is 1.2-2.8 percent of the weight of the L501 type HDPE resin, the addition amount of an antioxidant KY-7910 is 1.5-3 per mill of the weight of the L501 type HDPE resin, the addition amount of turpentine is 2.5-3.5 per mill of the weight of the L501 type HDPE resin, the addition amount of light sky blue master batches is 5-6 per mill of the weight of the L501 type HDPE resin,
C. melt spinning
The light sky blue modified HDPE composite material is melted and extruded by a single screw extruder in the temperature control ranges of the first zone, the second zone, the third zone, the fourth zone and the fifth zone of the charging barrel electric heating zone at 210-220 ℃, 240-245 ℃, 260-265 ℃, 270-275 ℃ and 270-275 ℃; the extrudate is melted and extruded from a spinneret orifice after being metered by a metering pump additionally arranged at a single screw outlet, the temperature range of the head of the single screw extruder is 270-272 ℃, the aperture of the spinneret orifice on the spinneret plate is 0.77-0.84 mm,
D. drawing and heat setting
Cooling and pre-drafting the extruded primary filament by using water at a low temperature of between 10 and 40 ℃ and a first drafting roller, and thermally drafting the pre-drafted filament for four times by using a first drafting water bath at a high temperature of between 97.0 and 99.9 ℃, a second drafting hot air box at a high temperature of between 90 and 110 ℃, a third drafting hot air box at a high temperature of between 90 and 149 ℃ and a fourth drafting hot air box, wherein the total drafting multiple is controlled to be between 9.0 and 16.0 times; then the mixture is coiled after being heat-shaped in a constant temperature box of 90 ℃ to 120 ℃ to obtain light sky blue long-acting antifouling tows,
E. preparation of long-acting antifouling net
The light sky blue long-acting antifouling tows are divided into light sky blue long-acting antifouling yarns, and the yarn dividing tension is controlled to be 1.6-7.3% of the breaking strength of the light sky blue long-acting antifouling yarns; determining the number x of the yarns for processing the strands, and primarily twisting the x light sky blue long-acting antifouling yarns with an internal twist of 7T/m-13T/m by using a stranding machine to obtain light sky blue long-acting antifouling strands with an S twisting direction; processing the three S-twisted light sky blue long-acting antifouling strands into light sky blue long-acting antifouling threads with Z twist and external twist in the range of 40T/m-128T/m by a three-strand twisting machine;
processing the light sky blue long-acting antifouling threads into an antifouling net sheet with a single dead knot type and a mesh length range of 2.3cm-12cm by using a double-hook type net weaving machine; and finally, carrying out transverse heat setting treatment on the antifouling net sheet by using a transverse setting machine and taking mesh breaking strength of 0.16-0.35 times as pretension to obtain the light sky blue long-acting antifouling net containing the grafted polyguanidine salt.
2. The method of preparing a light sky-blue long-lasting antifouling net containing a grafted polyguanidine salt according to claim 1, wherein the method comprises the following steps:
in the step B, the L501 type HDPE resin is wire-drawing grade, the melt index range is 0.4g/10min-1.9g/10min, and the grafting rate of the polyguanidine salt in the grafted polyguanidine salt/polyethylene granules is 20%.
3. The method for preparing a light sky blue long-acting antifouling net containing grafted polyguanidine salt according to claim 1, wherein the method comprises the following steps:
and B, pre-mixing the light sky blue master batches, pouring the pre-mixed light sky blue master batches into a high-speed kneading pot, kneading the mixture at a high speed of 600r/min for 30min, and discharging when the temperature of the mixture in the high-speed kneading pot rises to 70 ℃.
4. The method for preparing a light sky blue long-acting antifouling net containing grafted polyguanidine salt according to claim 1, wherein the method comprises the following steps:
in the step C, the length-diameter ratio range of the screw of the single-screw extruder is 1:32, the aperture of a spinneret orifice on a spinneret plate is 0.77mm-0.84mm, and the number of the orifices is 180.
5. The method for preparing a light sky blue long-acting antifouling net containing grafted polyguanidine salt according to claim 1, wherein the method comprises the following steps:
in the step D, the size of the first drafting water bath is 2.5m long multiplied by 0.9m wide multiplied by 1.0m high, the size of the second drafting hot air box is 3m long multiplied by 0.9m wide multiplied by 1.0m high, the size of the third drafting hot air box is 3.5m long multiplied by 0.9m wide multiplied by 0.5m high, and the size of the fourth drafting hot air box is 4.0m long multiplied by 0.9m wide multiplied by 0.5m high; the dimensions of the heat-setting oven were 1.3m long by 0.6m wide by 0.5m high.
6. The method for preparing a light sky blue long-acting antifouling net containing grafted polyguanidine salt according to claim 1, wherein the method comprises the following steps:
wherein, in the step E, according to the specification of the three-strand wires: the number x of strands for strand processing is determined by ρ linear density × number of strands for strand × number of strands for mesh, which is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010384978.8A CN111676588B (en) | 2020-05-09 | 2020-05-09 | Preparation method of light sky blue long-acting antifouling net containing grafted polyguanidine salt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010384978.8A CN111676588B (en) | 2020-05-09 | 2020-05-09 | Preparation method of light sky blue long-acting antifouling net containing grafted polyguanidine salt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111676588A CN111676588A (en) | 2020-09-18 |
| CN111676588B true CN111676588B (en) | 2021-09-03 |
Family
ID=72452366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010384978.8A Active CN111676588B (en) | 2020-05-09 | 2020-05-09 | Preparation method of light sky blue long-acting antifouling net containing grafted polyguanidine salt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111676588B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114908471A (en) * | 2022-04-13 | 2022-08-16 | 惠州市益晨网业科技有限公司 | Preparation method of novel anti-attachment net for marine ranch supporting facilities |
| CN114775129B (en) * | 2022-04-13 | 2023-06-06 | 中国水产科学研究院东海水产研究所 | Preparation method of blue deep-open sea culture line |
| CN114775075B (en) * | 2022-04-13 | 2023-06-06 | 中国水产科学研究院东海水产研究所 | Preparation method of isosceles right triangle deep-open sea culture protection net |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0763285B2 (en) * | 1993-04-19 | 1995-07-12 | 呉羽化学工業株式会社 | Fish net with both high sedimentability and high strength |
| CN101624788B (en) * | 2008-07-07 | 2011-11-02 | 中国水产科学研究院东海水产研究所 | Method for processing cultivation net cage or passive small-sized high-performance head rope for fishing gear |
| CN101666014B (en) * | 2008-09-01 | 2011-02-09 | 中国水产科学研究院东海水产研究所 | Method for manufacturing anti-turning high-strength net mesh for aquaculture net cages and catching and fishing tools |
| CN102453273B (en) * | 2010-10-22 | 2013-08-14 | 中国石油化工股份有限公司 | Antibacterial master batch based on guanidinium polymer and preparation method thereof |
| CN103155890B (en) * | 2013-03-19 | 2014-10-01 | 中国水产科学研究院东海水产研究所 | Preparing method of polyolefin wear-resisting energy-saving net |
| CN108440761B (en) * | 2017-02-16 | 2020-11-24 | 中国科学院理化技术研究所 | Non-release type high-molecular antibacterial master batch containing guanidyl side chain as well as preparation method and application thereof |
-
2020
- 2020-05-09 CN CN202010384978.8A patent/CN111676588B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111676588A (en) | 2020-09-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111676588B (en) | Preparation method of light sky blue long-acting antifouling net containing grafted polyguanidine salt | |
| KR100568655B1 (en) | Sheath-Core Polyester Fiber Including An Antimicrobial Agent | |
| CN111657197B (en) | Preparation method of cylindrical box body for deep and open sea net cage with antifouling performance | |
| CN106192065B (en) | The manufacturing method of krill fishery or the superpower antibacterial melt-spun silk of Culture pure seine | |
| CN111642437B (en) | Preparation method of truncated cone-shaped side net for semi-submersible type culture platform | |
| CN106087497B (en) | A kind of dark blue fishery rete cord processing method | |
| CN106192199B (en) | A kind of sea fishery is with there is netting | |
| CN101851795B (en) | Method for processing high-performance modified polyethylene monofilaments for manufacturing fishing net | |
| CN106192030B (en) | Far-reaching sea net cage or the antifouling melt-spun slivers processing method of drift line type purse seine | |
| CN106120045A (en) | A kind of deep-sea fishing melt-spun line manufacture method | |
| CN111926407B (en) | Processing method of grafted polyguanidine salt-containing nano copper-nickel synergistic antifouling yarn | |
| CN106192049B (en) | A kind of grid type purse seine netting gear fiber process method | |
| CN111642438B (en) | Preparation method of cylindrical suspension cage for preventing adhesion of seaweed | |
| CN113999443A (en) | Coating material for mariculture support and preparation method thereof | |
| CN114775162B (en) | Preparation method of rectangular deep and open sea culture separation net | |
| CN104562284A (en) | Manufacturing method of fibers of breeding nets of sea fish | |
| CN106283770B (en) | Deep-sea fishing rope processing method | |
| CN104862793A (en) | Method for producing fibers used for twisted threads | |
| CN114775129B (en) | Preparation method of blue deep-open sea culture line | |
| CN106192116B (en) | Siphonopods trawlnet or the wear-resisting superpower cheese processing method of super large purse seine | |
| CN110042498B (en) | Polyformaldehyde monofilament, preparation method thereof and polyformaldehyde wear-resistant rope for ecological fence | |
| CN111647960B (en) | Manufacturing method of loss-reducing and resistance-reducing wire for marine ranching | |
| CN101851793B (en) | Preparation method of modified polypropylene bristle monofilament for rope of aquaculture net cage or trawl fishing tool | |
| CN110129920A (en) | The anti-aging polyformaldehyde mesh sheet of anti-aging POLYOXYMETHYLENE MONOFILAMENTS and preparation method and preparation | |
| CN104862821B (en) | Reduce the knitmesh olive green fiber of mesh sheet water resistance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |