Background technology
Agricultural sciences is fished for catching net and the fishery engineering netting gear of fishery engineering technical field and has been made significant contribution for the mankind provide important aquatic product protein matter; Netting gear is made has very important impact by matrix fiber Material Physics mechanical performance (as ABRASION RESISTANCE, fracture strength performance and extensibility etc.) to the energy consumption in the netting gear operation and water resistance etc., the netting gear made from matrix fiber material wear-resisting, high-strength and that extensibility is suitable is being fished for the energy-conservation drag reduction that can realize the netting gear operation with the fishery engineering production and application, promote the fishery energy-saving and emission-reduction, the fishery of development low-carbon (LC), promote the well-being of mankind.Common polyethylene monofilament (being called for short the PE monofilament) is that prior art field netting gear is made of main matrix fiber material.Prior art field netting gear make with common PE monofilaments take 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 on the low side, fracture strength is less than normal and suitability is poor.Because the fracture strength of common PE monofilaments is low, cause common PE monofilaments downstream rope net product and netting gear product fish for fishery engineering production in be easy to breakage, this finally can cause in the netting gear operation " broken fish escapes net " occurs, fishery accidents such as " the rope suspension are lost ", cause heavy losses to the netting gear user, and it is stable further to have influence on social harmony, therefore, on the low side in the urgent need to the ABRASION RESISTANCE that changes the common PE monofilaments in the prior art field, fracture strength is less than normal, suitability is poor, being difficult to meet the modern times fishes for the situation with the safety work of fishery engineering technical field netting gear.For adapting to the development need of fishery facility modernization, the prior art field makes and uses method for processing composite filament in the urgent need to the energy-conservation anti-drag type netting gear that ABRASION RESISTANCE is good, fracture strength is high, suitability is good, to prepare the energy-conservation anti-drag type netting gear making compound silk that ABRASION RESISTANCE is good, fracture strength is high, suitability is good, but the prior art field there is no energy-conservation anti-drag type netting gear making compound silk process technology, therefore, energy-conservation anti-drag type netting gear is made has become prior art field technical barrier in the urgent need to address with method for processing composite filament.Energy-conservation anti-drag type netting gear makes of the solution of method for processing composite filament improving the netting gear security, save the netting gear energy consumption, reduce the netting gear water resistance, increase netting gear wind and wave resistance anti-flow performance, promote social harmony stablizes and fishes for the fishery engineering energy-saving and emission-reduction and all have very important effect.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of energy-conservation anti-drag type netting gear making method for processing composite filament, with the security of raising netting gear, saving netting gear energy consumption, the netting gear water resistance that reduces, increase netting gear wind and wave resistance anti-flow performance, lifting netting gear institution level, raising netting gear production comprehensive benefit, promotion, fish for and the fishery engineering energy-saving and emission-reduction.
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 SiO of nanoscale
2, spinning turpentine oil auxiliary agent, the dry HDPE resin of spinning-grade, the dry SiO of nanoscale after it is characterized in that processing sieving
2with spinning, with the turpentine oil auxiliary agent, mix, the dry HDPE resin melting of spinning-grade index should meet 0.6 gram/10 minute-1.5 grams/10 minutes, the dry SiO of nanoscale
2average grain diameter be not more than 35nm, addition is 0.5 ‰ of HDPE weight resin-2.5 ‰, the 0.3%-0.4% that spinning is the HDPE weight resin with the turpentine oil additive dosage, the dry HDPE resin of spinning-grade, the dry SiO of nanoscale
2till being stirred to material and all mixing thoroughly with mixer with the mixed compound of turpentine oil auxiliary agent with spinning, the compound after mixing thoroughly carries out extruding pelletization twice through double screw extruder, obtains the blend pellet, the blend pellet is through the A district in single screw extrusion machine barrel electrical heating district, the B district, the C district, the temperature-control range in D district is for being respectively 177 ℃-180 ℃, 244 ℃-246 ℃, 265 ℃-268 ℃, 275 ℃-278 ℃ melt extrude, the nascent compound silk melt extruded from spinneret orifice obtains cooling and preliminary draft through 25 ℃ of-33 ℃ of cooling water tank water at low temperature of water temperature and I drawing roller, the preliminary draft compound silk is through 96 ℃ of-98 ℃ of high temperature I drawing-off water baths and II drawing roller, 109 ℃ of-113 ℃ of high temperature II drawing-off deep fat baths and III drawing roller are carried out twice hot drawing-off, high temperature II drawing-off deep fat bath is usingd ethylene glycol or edible salad oil as the drawing-off heat medium, the preliminary draft compound silk is undertaken after above-mentioned twice hot drawing-off general times is controlled at 9.0 times-11.6 times adopting after the oil removing of 5.5 kg/cm-5.9 kg/cm high pressure draught cooling fast by twice drawing-off electrical heating drawing machine, so that with the receipts silk machine rolling compound silk tow of torque motor, under the 15%-20% that the compound silk tow is the compound silk ultimate strength at minute thread tension, through sub-wire machine sub-wire, be energy-conservation anti-drag type netting gear making compound silk.
Outstanding feature of the present invention is that special spinning technique and special blending and modifying technology are combined effectively, and the present invention adds the dry SiO of nanoscale of specific proportions in the dry HDPE resin concentrates of spinning-grade
2with spinning turpentine oil auxiliary agent, make and use compound silk by adopting again special spinning technique to prepare after double screw extruder blend granulation to be applicable to fish for the energy-conservation anti-drag type netting gear in fishery engineering field, in guaranteeing the compound silk preparation process, normal, the drawing-off of wire vent simultaneously smoothly, improve spinnability, ABRASION RESISTANCE and the fracture strength of output compound silk, but formed the energy-conservation anti-drag type netting gear making method for processing composite filament of suitability for industrialized production.The special spinning technique that the present invention adopts has improved ABRASION RESISTANCE and the fracture strength of output monofilament; The dry SiO of the nanoscale of specific proportions of the present invention
2interpolation improved ABRASION RESISTANCE and the fracture strength of output monofilament.The energy-conservation anti-drag type netting gear of the present invention's processing is made has the physical and mechanical properties advantage with the more common polyethylene monofilament of compound silk product, and has greatly improved the physical and mechanical properties of its downstream rope and netting gear product thereof.The fishing of the energy-conservation anti-drag type netting gear product that the compound silk be processed into the present invention is made is good by suitability, cost performance is high, and technique effect is very obvious.Relevant abrasion test and fish production result of the test show, in other condition under identical prerequisite, it is good with the energy-conservation anti-drag type netting gear of the present invention's processing, to make by the ABRASION RESISTANCE of compound silk, and energy-conservation anti-drag type netting gear is made and is better than common polyethylene monofilament by the ABRASION RESISTANCE of compound silk and netting gear product thereof.Related physical mechanical test result shows, the energy-conservation anti-drag type netting gear that the line density of the present invention of take processing was 310 dawn is made and is respectively 7.39 grams/dawn, 10.3% with fracture strength, the elongation at break of compound silk; Energy-conservation anti-drag type netting gear is made by the fracture strength of compound silk can have SC 5005 " fishing polyethylene monofilament " standard Grade A index raising 20.7% now; Energy-conservation anti-drag type netting gear is made the interval that is positioned at 9%-26% with the elongation at break of compound silk, and the elongation at break size meets energy-conservation anti-drag type netting gear processing request fully.Under and prerequisite that other condition is identical identical in the disrumpent feelings brute force of rope, if make and substitute traditional netting gear polyethylene monofilament rope with the compound silk rope with the energy-conservation anti-drag type netting gear of the present invention's braiding, can make that the rope nominal diameter reduces, rope wire density reduces, rope weight saving, rope ABRASION RESISTANCE improve, the equal length rope reduces with raw materials consumption, can make energy consumption used in the rear netting gear operation of rope equipment reduce, can make institute's water resistance in rope and netting gear operation thereof reduce, thereby realize fishing for and the energy-conservation drag reduction of fishery engineering with netting gear.Under and prerequisite that other condition is identical identical at mesh rupture strength, if make and substitute with the composite wire sheet polyethylene monofilament net sheet for traditional netting gear that mesh size is identical with the energy-conservation anti-drag type netting gear of the present invention braiding, 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, if make and substitute with the composite wire sheet polyethylene monofilament net sheet for traditional netting gear that mesh size is identical with the energy-conservation anti-drag type netting gear of the present invention's braiding, can make equal area, identical hanging ratio and identical Condition Of Tow lower net plate pulls required energy consumption and water resistance reduces, energy consumption and water resistance after net sheet equipment in the netting gear operation reduce, thereby realize fishing for and the energy-conservation drag reduction of fishery engineering with netting gear, there is remarkable technique effect.
The specific embodiment
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 SiO of nanoscale
2, spinning turpentine oil auxiliary agent, the dry HDPE resin of spinning-grade, the dry SiO of nanoscale after the present invention will sieve and process
2with spinning, with the turpentine oil auxiliary agent, mix, the dry HDPE resin melting of spinning-grade index should meet 0.6 gram/10 minute-1.5 grams/10 minutes, the dry SiO of nanoscale
2average grain diameter be not more than 35nm, addition is 0.5 ‰ of HDPE weight resin-2.5 ‰, the 0.3%-0.4% that spinning is the HDPE weight resin with the turpentine oil additive dosage, the dry HDPE resin of spinning-grade, the dry SiO of nanoscale
2till being stirred to material and all mixing thoroughly with mixer with the mixed compound of turpentine oil auxiliary agent with spinning, the compound after mixing thoroughly carries out extruding pelletization twice through double screw extruder, obtains PE/SiO
2the blend pellet, PE/SiO
2the blend pellet is through the A district in single screw extrusion machine barrel electrical heating district, the B district, the C district, the temperature-control range in D district is for being respectively 177 ℃-180 ℃, 244 ℃-246 ℃, 265 ℃-268 ℃, 275 ℃-278 ℃ melt extrude, the nascent compound silk melt extruded from spinneret orifice obtains cooling and preliminary draft through 25 ℃ of-33 ℃ of cooling water tank water at low temperature of water temperature and I drawing roller, the preliminary draft compound silk is through 96 ℃ of-98 ℃ of high temperature I drawing-off water baths and II drawing roller, 109 ℃ of-113 ℃ of high temperature II drawing-off deep fat baths and III drawing roller are carried out twice hot drawing-off, high temperature II drawing-off deep fat bath is usingd ethylene glycol or edible salad oil as the drawing-off heat medium, the preliminary draft compound silk is undertaken after above-mentioned twice hot drawing-off general times is controlled at 9.0 times-11.6 times adopting after the oil removing of 5.5 kg/cm-5.9 kg/cm high pressure draught cooling fast by twice drawing-off electrical heating drawing machine, so that with the receipts silk machine rolling compound silk tow of torque motor, under the 15%-20% that the compound silk tow is the compound silk ultimate strength at minute thread tension, through sub-wire machine sub-wire, be energy-conservation anti-drag type netting gear making compound silk.