CN103147150B - Preparation method of monofilament for net cage body and trawl fishing gear - Google Patents
Preparation method of monofilament for net cage body and trawl fishing gear Download PDFInfo
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- CN103147150B CN103147150B CN201210448535.6A CN201210448535A CN103147150B CN 103147150 B CN103147150 B CN 103147150B CN 201210448535 A CN201210448535 A CN 201210448535A CN 103147150 B CN103147150 B CN 103147150B
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Abstract
A preparation method of a monofilament for net cage body and trawl fishing gear. The invention employs a mixer, a double-screw extruder, a single-screw extruder, a secondary drafting electric heating draw machine, a winding machine using a torque motor, a filament splitting machine, a spinning grade drying HDPE resin, nanometer drying ZnO and a turpentine assistant for spinning. The method is characterized by comprising the steps of: mixing the spinning grade drying HDPE resin, the nanometer drying ZnO and the turpentine assistant for spinning; stirring the mixture with a mixer to a uniform state; granulating the thoroughly mixed mixture by the twin-screw extruder to obtain the blend pellets; subjecting the blend pellets to melt extrusion by the single-screw extruder; subjecting the primary monofilament obtained from melt extrusion to cooling and a preliminary drafting; subjecting the composite monofilament from preliminary drafting to two times of hot drafting, then high-pressure airflow oil removal and fast cooling; winding the monofilament by the winding machine using torque motor; and splitting the monofilament by the filament splitting machine into a energy-saving and emission-reducing monofilament for net cage body and trawl fishing gear.
Description
Technical field
The present invention relates to the preparation method of net cage and Trawl gear monofilament in aquatic products technical field.
Background technology
Aquiculture net cage in agricultural sciences aquatic products technical field and Trawl gear have been brought into play important function for the mankind obtain aquatic product protein matter.Aquaculture net box body and Trawl gear making have very important impact by ABRASION RESISTANCE, fracture strength and the suitability quality of matrix fiber material to the raw materials consumption in net cage and Trawl gear operation and carbon emission, the consumption reduction that the net cage casing made from matrix fiber material wear-resisting, high-strength and that suitability is good and Trawl gear can be realized net cage and Trawl gear operation in fish production reduces discharging, and can develop low-carbon type and climate-friendly aquatic products cage culture industry and ocean trawl-net fishing.Common polyethylene monofilament (being called for short PE monofilament) is that existing aquatic products technical field net cage casing and Trawl gear are made of main matrix fiber material.Existing aquatic products technical field net cage casing and Trawl gear are made by common PE monofilaments taking high density polyethylene (HDPE) (HDPE) resin as raw material, spinning heat medium as water, adopt traditional melt-spinning technology, cause common PE monofilaments to have the defect that ABRASION RESISTANCE is poor, fracture strength is lower and suitability is poor.Because the fracture strength of common PE monofilaments is low, cause common PE monofilaments downstream (being later process) net cage casing and Trawl gear product cracky in fish production, cause heavy losses to net cage casing and Trawl gear user, therefore, also there is the defect that ABRASION RESISTANCE is poor, fracture strength is lower and suitability is poor in common PE monofilaments, be difficult to meet that modern aquatic products technical field net cage casing and Trawl gear consumption reduction reduce discharging, the fishery of development low-carbon (LC) in the urgent need to.In order to adapt to, consumption reduction reduces discharging and the development need of low-carbon (LC) fishery, aquatic products technical field is good in the urgent need to ABRASION RESISTANCE, the net cage casing that fracture strength is high and suitability is good and Trawl gear reduce discharging monofilament preparation method with consumption reduction, good to prepare ABRASION RESISTANCE, the net cage casing that fracture strength is high and suitability is good and Trawl gear reduce discharging monofilament with consumption reduction, but net cage casing and Trawl gear monofilament preparation method that existing aquatic products technical field does not also reduce discharging based on consumption reduction, therefore, net cage casing and Trawl gear reduce discharging monofilament preparation method with consumption reduction becomes existing aquatic products technical field technical barrier in the urgent need to address.Net cage casing and Trawl gear use the solution of consumption reduction reduction of discharging monofilament preparation method technical barrier not only to improving the carbon emission in the security of net cage casing and Trawl gear, the wind and wave resistance performance that increases net cage casing and Trawl gear, lifting net cage facility and Trawl gear equipment, the raw materials consumption that reduces net cage casing and Trawl gear, minimizing net cage and Trawl gear operation, and are significant to improving net cage and Trawl gear comprehensive benefit.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of net cage casing and Trawl gear monofilament preparation method who reduces discharging based on consumption reduction, with reduce aquaculture net box body and Trawl gear raw materials consumption, reduce carbon emission in net cage and Trawl gear operation, improve net cage casing and Trawl gear security, increase net cage casing and wind and wave resistance performance, lifting net cage facility and Trawl gear equipment, raising net cage casing and Trawl gear comprehensive benefit, pushing net cage and the Trawl gear production of Trawl gear lower consumption reduction of discharging, develop low-carbon (LC) fishery.
Technical scheme of the present invention adopts mixer, double screw extruder, single screw extrusion machine, twice drawing-off electrical heating drawing machine, the receipts silk machine that uses torque motor, sub-wire machine, the dry HDPE resin of spinning-grade, the dry ZnO of nanoscale and spinning turpentine oil auxiliary agent, the dry HDPE resin of the rear spinning-grade of the processing that it is characterized in that sieving, the dry ZnO of nanoscale and the mixing of spinning turpentine oil auxiliary agent, spinning-grade is dried HDPE resin melting index should meet 0.6g/10min-1.5g/10min, the average grain diameter of the dry ZnO of nanoscale is less than 40nm, and addition is 4.6 ‰-5.2 ‰ of the dry HDPE weight resin of spinning-grade, spinning is the 0.3%-0.4% of the dry HDPE weight resin of spinning-grade with turpentine oil additive dosage, till spinning-grade is dried the dry ZnO of HDPE resin, nanoscale and the spinning mixed compound of turpentine oil auxiliary agent mixer and is stirred to material and all mixes thoroughly, the compound after mixing thoroughly carries out extruding pelletization twice through double screw extruder, acquisition blend pellet, blend pellet is through Ⅰ district of single screw extrusion machine barrel electrical heating district, Ⅱ district, Ⅲ district, the temperature-control range in Ⅳ district is for being respectively 176 DEG C-181 DEG C, 243 DEG C-247 DEG C, 264 DEG C-268 DEG C, 274 DEG C-279 DEG C melt extrude, the nascent monofilament melt extruding from spinneret orifice obtains cooling and preliminary draft through 25 DEG C of-33 DEG C of cooling water tank water at low temperature of water temperature and the first drawing roller, preliminary draft monofilament is through 95 DEG C-98 DEG C high temperature the first drawing-off water baths and the second drawing roller, 109 DEG C-113 DEG C high temperature the second drawing-off deep fat baths and the 3rd drawing roller are carried out twice hot drawing-off, high temperature the second drawing-off deep fat bath is using edible vegetable oil or ethylene glycol as drawing-off heat medium, preliminary draft monofilament is undertaken after above-mentioned twice hot drawing-off general times is controlled at 9.0 times-11.6 times adopting 5.5kg/cm by twice drawing-off electrical heating drawing machine
2-6.0kg/cm
2cooling fast after high pressure draught oil removing, so that with the receipts silk machine rolling monofilament tow of torque motor, monofilament tow is under the 15%-25% of single wire fracture brute force to be net cage casing and Trawl gear consumption reduction reduction of discharging monofilament through sub-wire machine sub-wire at point thread tension.
Outstanding feature of the present invention is that special spinning technique and special modification technology are combined effectively, the present invention adds the dry ZnO of nanoscale and the spinning turpentine oil auxiliary agent of specific proportions in the dry HDPE resin concentrates of spinning-grade, be applicable to by adopting again special spinning technique to prepare after double screw extruder blend granulation net cage casing and the Trawl gear monofilament preparation method that aquatic products technical field consumption reduction reduces discharging, guaranteeing that in monofilament preparation process, wire vent is normal, drawing-off simultaneously smoothly, improve the spinnability of output monofilament, ABRASION RESISTANCE and fracture strength, form net cage casing and Trawl gear consumption reduction and reduced discharging monofilament preparation method.The special spinning technique that the present invention adopts has improved ABRASION RESISTANCE and the fracture strength of output monofilament; The interpolation of the dry ZnO of nanoscale of specific proportions of the present invention has improved ABRASION RESISTANCE and the fracture strength of output monofilament.The net cage casing of the present invention's processing and Trawl gear reduce discharging monofilament product with consumption reduction and have combination property advantage compared with the common polyethylene monofilament in prior art field, and have greatly improved the combination property of its downstream net cage casing and Trawl gear product.Lower consumption and reduce discharging the net cage casing that monofilament makes and the fishing suitability of Trawl gear product is good, cost performance is high with the present invention.Relevant abrasion test and fish production result of the test show, under the identical prerequisite of other condition, the ABRASION RESISTANCE that reduces discharging monofilament with consumption reduction with net cage casing and the Trawl gear of technical solution of the present invention processing is good, and net cage casing and Trawl gear are better than common polyethylene monofilament by the ABRASION RESISTANCE that consumption reduction reduces discharging monofilament.Related physical mechanical test result shows, adopting the diameter of this method processing is that the net cage casing of 0.19mm monofilament and fracture strength, the elongation at break of Trawl gear monofilament are respectively 76.4cN/tex, 10%; Net cage casing and Trawl gear can more existing SC5005 " fishing polyethylene monofilament " standard high-class product index improve 36.4% by the fracture strength that consumption reduction reduces discharging monofilament; Net cage casing and Trawl gear are 10% with the elongation at break that consumption reduction reduces discharging monofilament, and this meets the requirement of high-performance net cage casing and Trawl gear processing single wire fracture percentage elongation completely.Under and prerequisite that other condition is identical identical at mesh rupture strength, substitute if reduce discharging monofilament net flake products with the downstream consumption reduction of the inventive method processing monofilament the common fishing polyethylene monofilament net sheet that mesh size is identical, can make that net sheet order pin rugosity reduces, the raising of net sheet ABRASION RESISTANCE, equal area and the weight saving of identical hanging ratio lower net plate, equal area and identical hanging ratio lower net plate raw materials consumption minimizing.Under and prerequisite that other condition is identical identical at mesh rupture strength, reduce discharging monofilament net flake products with the downstream consumption reduction of this method processing monofilament and substitute the common fishing polyethylene monofilament net sheet that mesh size is identical, can make equal area, identical hanging ratio and identical Condition Of Tow lower net plate pulls required energy consumption and water resistance reduces, net cage after net sheet equipment and the energy consumption in Trawl gear operation and water resistance reduce, thereby realize the consumption reduction reduction of discharging that net cage and Trawl gear are produced, obvious technical effects.Under and prerequisite that other condition is identical identical at rete cord ultimate strength, reduce discharging monofilament rete cord product with the downstream consumption reduction of this method processing monofilament and substitute common fishing polyethylene monofilament rete cord, can make rete cord nominal diameter reduce, rete cord line density reduces, rete cord weight saving, rete cord ABRASION RESISTANCE improves, equal length rete cord reduces with raw materials consumption, can make energy consumption minimizing used in net cage after rete cord equipment and Trawl gear operation, the rear net cage casing of rete cord and equipment thereof and Trawl gear suffered water resistance in operation is reduced, thereby the consumption reduction of realizing net cage casing and Trawl gear reduces discharging, there is remarkable technique effect.
Detailed description of the invention
The present invention adopts mixer, double screw extruder, single screw extrusion machine, twice drawing-off electrical heating drawing machine, use the receipts silk machine of torque motor, sub-wire machine, spinning-grade is dried high density polyethylene (HDPE) (HDPE) resin, nanoscale is dried zinc oxide (ZnO) (if the dry ZnO material of nanoscale makes moist, should carry out drying and processing) and spinning turpentine oil auxiliary agent, after the present invention just sieves and processes, the dry HDPE resin of spinning-grade is (if HDPE resin makes moist, should dry, the dry processing such as dry or air-dry), the dry ZnO of nanoscale and spinning mix with turpentine oil auxiliary agent, the dry HDPE resin melting index of spinning-grade should meet 0.6g/10min-1.5g/10min, the average grain diameter of the dry ZnO of nanoscale is less than 40nm, and addition is 4.6 ‰-5.2 ‰ of the dry HDPE weight resin of spinning-grade, spinning is the 0.3%-0.4% of the dry HDPE weight resin of spinning-grade with turpentine oil additive dosage, till spinning-grade is dried the dry ZnO of HDPE resin, nanoscale and the spinning mixed compound of turpentine oil auxiliary agent mixer and is stirred to material and all mixes thoroughly, the compound after mixing thoroughly carries out extruding pelletization twice through double screw extruder, acquisition PE/ZnO blend pellet, PE/ZnO blend pellet is through Ⅰ district of single screw extrusion machine barrel electrical heating district, Ⅱ district, Ⅲ district, the temperature-control range in Ⅳ district is for being respectively 176 DEG C-181 DEG C, 243 DEG C-247 DEG C, 264 DEG C-268 DEG C, 274 DEG C-279 DEG C melt extrude, the nascent monofilament melt extruding from spinneret orifice obtains cooling and preliminary draft through 25 DEG C of-33 DEG C of cooling water tank water at low temperature of water temperature and the first drawing roller, preliminary draft monofilament is through 95 DEG C-98 DEG C high temperature the first drawing-off water baths and the second drawing roller, 109 DEG C-113 DEG C high temperature the second drawing-off deep fat baths and the 3rd drawing roller are carried out twice hot drawing-off, high temperature the second drawing-off deep fat bath is using edible vegetable oil or ethylene glycol as drawing-off heat medium, preliminary draft monofilament is undertaken after above-mentioned twice hot drawing-off general times is controlled at 9.0 times-11.6 times adopting 5.5kg/cm by twice drawing-off electrical heating drawing machine
2-6.0kg/cm
2cooling fast after high pressure draught oil removing, so that with the receipts silk machine rolling monofilament tow of torque motor, monofilament tow is under the 15%-25% of single wire fracture brute force to be net cage casing and Trawl gear consumption reduction reduction of discharging monofilament through sub-wire machine sub-wire at point thread tension.
Claims (1)
1. net cage casing and Trawl gear monofilament preparation method, adopt mixer, double screw extruder, single screw extrusion machine, twice drawing-off electrical heating drawing machine, the receipts silk machine that uses torque motor, sub-wire machine, the dry HDPE resin of spinning-grade, the dry ZnO of nanoscale and spinning turpentine oil auxiliary agent, the dry HDPE resin of the rear spinning-grade of the processing that it is characterized in that sieving, the dry ZnO of nanoscale and the mixing of spinning turpentine oil auxiliary agent, spinning-grade is dried HDPE resin melting index should meet 0.6g/10min-1.5g/10min, the average grain diameter of the dry ZnO of nanoscale is less than 40nm, and addition is 4.6 ‰-5.2 ‰ of the dry HDPE weight resin of spinning-grade, spinning is the 0.3%-0.4% of the dry HDPE weight resin of spinning-grade with turpentine oil additive dosage, till spinning-grade is dried the dry ZnO of HDPE resin, nanoscale and the spinning mixed compound of turpentine oil auxiliary agent mixer and is stirred to material and all mixes thoroughly, the compound after mixing thoroughly carries out extruding pelletization twice through double screw extruder, acquisition blend pellet, blend pellet is through Ⅰ district of single screw extrusion machine barrel electrical heating district, Ⅱ district, Ⅲ district, the temperature-control range in Ⅳ district is respectively 176 DEG C-181 DEG C, 243 DEG C-247 DEG C, 264 DEG C-268 DEG C, 274 DEG C-279 DEG C melt extrude, the nascent monofilament melt extruding from spinneret orifice obtains cooling and preliminary draft through 25 DEG C of-33 DEG C of cooling water tank water at low temperature of water temperature and the first drawing roller, preliminary draft monofilament is through 95 DEG C-98 DEG C high temperature the first drawing-off water baths and the second drawing roller, 109 DEG C-113 DEG C high temperature the second drawing-off deep fat baths and the 3rd drawing roller are carried out twice hot drawing-off, high temperature the second drawing-off deep fat bath is using edible vegetable oil or ethylene glycol as drawing-off heat medium, preliminary draft monofilament is undertaken after above-mentioned twice hot drawing-off general times is controlled at 9.0 times-11.6 times adopting 5.5kg/cm by twice drawing-off electrical heating drawing machine
2-6.0kg/cm
2cooling fast after high pressure draught oil removing, so that with the receipts silk machine rolling monofilament tow of torque motor, monofilament tow is under the 15%-25% of single wire fracture brute force to be net cage casing and Trawl gear consumption reduction reduction of discharging monofilament through sub-wire machine sub-wire at point thread tension.
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| CN201210448535.6A CN103147150B (en) | 2012-11-09 | 2012-11-09 | Preparation method of monofilament for net cage body and trawl fishing gear |
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| CN201210448535.6A CN103147150B (en) | 2012-11-09 | 2012-11-09 | Preparation method of monofilament for net cage body and trawl fishing gear |
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| CN103147150B true CN103147150B (en) | 2014-12-10 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104562284B (en) * | 2014-12-29 | 2016-05-11 | 中国水产科学研究院东海水产研究所 | The preparation method of fiber for marine fish culture etting |
| CN104562283B (en) * | 2014-12-29 | 2016-05-11 | 中国水产科学研究院东海水产研究所 | The preparation method of fiber for the krill head rope |
| CN104862793A (en) * | 2015-05-18 | 2015-08-26 | 中国水产科学研究院东海水产研究所 | Method for producing fibers used for twisted threads |
| CN104862822A (en) * | 2015-05-20 | 2015-08-26 | 中国水产科学研究院东海水产研究所 | Method for preparing monofilaments for main outline rope processing of net bag of offshore net cage |
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