CN104562284B - The preparation method of fiber for marine fish culture etting - Google Patents

Abstract

The preparation method of fiber for marine fish culture etting, adopt HDPE resin, auxiliary agent, metallocene LLDPE resin, mixer, single screw extrusion machine, twice drawing-off electrical heating drafting machine, receive a silk machine, sub-wire machine, it is characterized in that the processing of sieving of HDPE resin, additive dosage be HDPE weight resin 0.6%, metallocene LLDPE resin content is 10.3% of HDPE weight resin, stir 19～31min with mixer and all stir to material, acquisition HDPE/ metallocene LLDPE resin blend; HDPE/ metallocene LLDPE resin blend melt extrudes through single screw extrusion machine, the spun filament melt extruding is through cooling water tank and the first draw roll is cooling and preliminary draft, preliminary draft silk is through twice hot drawing-off, with cooling fast after high pressure draught oil removing, to receive a machine rolling fibre bundle; Fibre bundle is marine fish culture etting making fiber through sub-wire machine sub-wire.

Description

The preparation method of fiber for marine fish culture etting

Technical field

The present invention relates to cultivate in marine fish culture technical field the manufacture method of etting fiber.

Background technology

Cultivation etting is seawater fish purse seine or the indispensable important materials of cage culture, and its performance is excellentThe bad success or failure that are directly connected to marine fish culture. Fiber is marine fish culture technical field culturing netClothing is made of one of main material, and it is directly connected to cultivation etting performance, cultivation etting raw material disappearConsumption and marine fish culture installation security, but prior art field cultivation etting is made of fiber with singleHigh-density polyethylene resin is that raw material adopts the processing of hot water drawing process, because of drawing process control improper,Cause its knot strength relatively low, thereby can further have influence on cultivation etting performance, cultivation ettingRaw materials consumption and marine fish culture installation security, so prior art field is with single highly denseDegree polyvinyl resin is the common polythene filament properties adaptation that raw material adopts hot water drawing process to be processed intoProperty is poor, is difficult to meet modern marine fish culture need of production. Along with the maximization of marine fish cultureWith offshoreization development, be badly in need of the marine fish culture etting that a large amount of knot strengths are high, suitability is good and makeWith fiber, traditional fibre technology that only changes just can be prepared the applicable seawater fish of above-mentioned requirements and supportGrow etting making fiber, marine fish culture etting make with the solution of fiber problem be hang for a long time andUnsettled technical barrier, has the raw materials consumption of reduction cultivation etting, the security of increase cultivation ettingRemarkable effect.

Summary of the invention

The technical issues that need to address of the present invention are to provide a kind of cultivation of marine fish culture technical fieldEtting fiber preparation method, improves cultivation etting and makes knot strength and the stability with fiber, increasesAdd cultivation etting performance, reduce the raw materials consumption of cultivation etting, improve marine fish culture installation securityProperty, promote fishery energy-saving and emission-reduction.

Technical scheme of the present invention adopts wire drawing level dry HDPE resin, white oil or turpentine oil auxiliary agent, luxuriantMetal LLDPE resin, mixer, single screw extrusion machine, twice drawing-off electrical heating drafting machine, receive silkMachine, sub-wire machine, is characterized in that the processing of sieving of the dry HDPE resin of wire drawing level, and melt index should meet0.7g/10min～1.4g/10min; White oil or turpentine oil additive dosage are the dry HDPE tree of wire drawing level0.6% of fat weight; Metallocene LLDPE resin melting index is 1g/10min, and addition is HDPE10.3% of weight resin, with mixer by dry wire drawing level HDPE resin, white oil or turpentine oil auxiliary agent,Metallocene LLDPE mixed with resin stirs 19min～31min and all stirs to material, and compound stirs allAfter even, just obtain HDPE/ metallocene LLDPE resin blend; HDPE/ metallocene LLDPE resin alloyThing is through the temperature-control range in Ⅰ district of single screw extrusion machine barrel electrical heating district, II district, III district, IV districtBe respectively 162～167 DEG C, 265～270 DEG C, 307～315 DEG C, 343～350 DEG C and melt extrude, fromThe spun filament that spinneret orifice melt extrudes obtains through 25 DEG C～33 DEG C water at low temperature of cooling water tank and the first draw rollTo cooling and preliminary draft, the cooling distance of spun filament is controlled at 0.88m～1.03m, spinneret and cooling waterVertical range in case between the water surface is controlled at 3cm～8cm, and preliminary draft silk is through 97 DEG C～99 DEG C high temperature theOne drawing-off water bath and the second draw roll, 108.5 DEG C～113 DEG C high temperature the second drawing-off deep fat baths andThree draw roll are carried out twice hot drawing-off, using soya-bean oil or ethylene glycol as drawing-off heat medium, and preliminary draft silkCarry out above-mentioned twice hot drawing-off by twice drawing-off electrical heating drafting machine, drawing-off general times is controlled at 9.6Doubly～10.0 times, cooling fast after the oil removing of employing 0.57MPa～0.62MPa high pressure draught, to useThe receipts silk machine rolling fibre bundle of torque motor; Bundle dividing thread tension is controlled at fibrous fracture brute force26%～34%, be marine fish culture etting making fiber through sub-wire machine sub-wire.

This method comprises drafting multiple, wire-drawing temperature and metallocene linearity to different drawing process conditionsLow density polyethylene (LDPE) addition has carried out lot of experiments exploration, and the basis of proving in a large amount of scientific experimentationsThe upper technical solution of the present invention that just formed. Result of the test shows, the marine fish culture of the present invention's processingEtting making is applicable to marine fish culture technical field with fiber, and it is more traditional cultivation etting system not onlyEffect polyethylene monofilament has knot strength, stability, abrasion resistance and spinnability advantage, and increasesCultivation etting performance, the reduce raw materials consumption of cultivation etting, raising marine fish culture installation security,Technique effect highly significant. The present invention due in HDPE resin concentrates, add special ratios white oil orTurpentine oil auxiliary agent, metallocene LLDPE resin, adopt special draw after stirring by mixer againSilk technology is produced the marine fish culture etting making that is applicable to marine fish culture technical field with fineDimension, guaranteeing that fiber continuously in industrialization production, has improved the knot strength of fiber simultaneouslyWith stability, fiber softening, abrasion resistance and spinnability are improved; The fish that the present invention processesClass cultivation etting is made by the combination property of fiber apparently higher than existing cultivation etting making fiber; ThisInvention adopts special sub-wire technique, as a point thread tension is controlled at 26%～34% of fibrous fracture brute force,Thereby ensure point thread tension can by rolling on bobbin in fibre bundle cross one another fiber separately, againCan prevent that bobbin from accepting that winding tension is excessive causes impression fiber, thereby improve existing cultivation etting systemThe physical property of effect fiber product; The present invention adopts special drawing process, as the present invention for the second timeHot drawing-off replaces traditional hot water drawing process using soya-bean oil or ethylene glycol etc. as special drawing-off heat mediumMake the special drawing-off times adopting by the feature of fiber of drawing-off heating water medium, for cultivation ettingNumber, guarantee the heat treatment temperature of fiber in the time of the second bath drawing-off higher than 108.5 DEG C, guarantee fiber systemIn standby process, wire drawing is normal and drawing-off is smooth, is beneficial to the raising of fiber knot strength and degree of crystallinity, makesThe cultivation etting that must process makes by the flexibility of fiber and abrasion resistance is good, knot strength reaches5.05g/D and elongation at break are positioned at 17～21% interval, and its knot strength can be more existing generalLogical polyethylene monofilament standard index (4.08g/D) improves 23.6%; Its elongation at break meets sea completelyWater fish culture needs. Result of the test shows, it is better that the present invention develops stability and the wearability of fiber,The marine fish culture etting system that higher fusing point, melting heat and temperature tolerance better makes the present invention produceEffect fiber has good stability and wearability, and technical solution of the present invention can effectively be improved severe supportingGrow fiber and etting impact resistance thereof under sea situation; In powerful identical with the size of mesh condition of cultivation ettingUnder, develop fiber making marine fish culture etting with the present invention and both can make net cage or purse seine culturing netThe order pin rugosity of clothing reduces, water resistance reduces, can make again the weight saving of net cage or purse seine cultivation etting,Raw materials consumption minimizing, stability improve, and this has improved the thing of net cage or purse seine cultivation etting greatlyRationality energy and suitability thereof, cultivation etting wind and wave resistance stream effect is remarkable. Consider cultivation etting cost andThe feature of marine fish culture engineering material, the present invention adopts the relatively cheap metallocene LLDPE of priceResin and compound, without double screw extruder blend granulation, become to reduce cultivation etting making fiberThis, be beneficial to the commercial application of invention product on cultivation etting.

Detailed description of the invention

The present invention adopts wire drawing level to be dried HDPE resin, white oil or turpentine oil auxiliary agent, metallocene LLDPEResin, mixer, single screw extrusion machine, twice drawing-off electrical heating drafting machine, receive a silk machine, sub-wire machine,Wire drawing level is dried HDPE resin (market is on sale, the raises sub-petrochemical iy produced) processing of sieving, and melt index shouldMeet 0.7g/10min～1.4g/10min, if HDPE resin makes moist, should dry or be placed in the sunUnder could use after drying; White oil or turpentine oil additive dosage are the dry HDPE weight resin of wire drawing level0.6%; Metallocene LLDPE resin (market is on sale, and Daqing petrochemical company is produced), melt indexFor 1g/10min, density is 0.918g/cm³, addition is that wire drawing level is dried HDPE weight resin10.3%, with mixer stirring 27min, to expecting all mixing and stirring, compound just obtains after mixing allHDPE/ metallocene LLDPE resin blend; HDPE/ metallocene LLDPE resin blend is through single screw rodExtruder (screw slenderness ratio is 25:1, filter thickness 10mm, and screen pack adopts one deck 78 order ironSilk screen, one deck 118 object copper alloy screen nets) in specified temp (of extruder barrel electrical heating districtThe temperature in I district, II district, III district, IV district is respectively 165 DEG C, 268 DEG C, 312 DEG C, 347 DEG C) underMelt extrude, (spun filament is cooling through cooling water tank water at low temperature for the spun filament melt extruding from spinneret orificeDistance is controlled at the vertical range control between the water surface in 0.88m～1.03m, spinneret and cooling water tankBeing controlled at 25 DEG C～33 DEG C, cooling water tank in 3cm～8cm, water temperature is of a size of0.62m × 0.52m × 0.62m) and the first draw roll obtain cooling and preliminary draft, preliminary draft silk is through 98 DEG CHigh temperature the first drawing-off water bath and the second draw roll, 111 DEG C of high temperature second drawing-off deep fat baths are (with soya-bean oilOr ethylene glycol etc. is as special drawing-off heat medium) and the 3rd draw roll carry out twice hot drawing-off, pre-Drafting silk carries out above-mentioned twice hot drawing-off general times by twice drawing-off electrical heating drafting machine and is controlled at 9.6Doubly～adopt high pressure (pressure is controlled at 0.57MPa～0.62MPa left and right) air-flow oil removing after 10.0 timesCooling fast afterwards, so that with the receipts silk machine rolling cultivation etting making fibre bundle of torque motor; Support(point thread tension is controlled at this fibrous fracture brute force at specific point of thread tension to grow etting making fibre bundle26%～34%) under, be (the cultivation etting making fiber of fiber for cultivation etting is made through sub-wire machine sub-wireKnot strength reaches 5.05g/D and elongation at break is positioned at 17%～21% interval). Side of the present inventionMethod constant product quality, industrialization production continuously, obvious technical effects of the present invention. Skill of the present inventionArt scheme is focused on knot strength and the spinnability of fiber product, the high-performance that the line density of production is 387DModified fibre is particularly suitable for being processed into cultivation etting; At the powerful and tool identical with size of mesh of cultivation ettingHave under the condition of superiority of effectiveness, can make to cultivate the powerful raising of etting, weight saving, water resistance reduce,Raw materials consumption minimizing, security and suitability improve, and this has improved fiber and downstream cultivation thereof greatlyThe physical property of etting and suitability, marine fish culture etting in marine fish culture technical fieldMake the obvious technical effects with fiber.

Claims (1)

1. the preparation method of fiber for marine fish culture etting, adopts the dry HDPE of wire drawing levelResin, white oil or turpentine oil auxiliary agent, metallocene LLDPE resin, mixer, single Screw ExtrusionMachine, twice drawing-off electrical heating drafting machine, receive a silk machine, sub-wire machine, it is characterized in that wire drawing level is dryThe processing of sieving of HDPE resin, melt index should meet 0.7g/10min～1.4g/10min; White oilOr turpentine oil additive dosage is 0.6% of the dry HDPE weight resin of wire drawing level; MetalloceneLLDPE resin melting index is 1g/10min, and addition is 10.3% of HDPE weight resin,With mixer by dry wire drawing level HDPE resin, white oil or turpentine oil auxiliary agent, metallocene LLDPEMixed with resin stirs 19min～31min extremely expects all to stir, and after compound stirs, just obtainsObtain HDPE/ metallocene LLDPE resin blend; HDPE/ metallocene LLDPE resin blend warpThe temperature-control range in Ⅰ district of single screw extrusion machine barrel electrical heating district, II district, III district, IV districtBe respectively 162 DEG C～167 DEG C, 265 DEG C～270 DEG C, 307 DEG C～315 DEG C, 343 DEG C～350 DEG CMelt extrude, the spun filament melt extruding from spinneret orifice is through 25 DEG C～33 DEG C low temperature of cooling water tankWater and the first draw roll obtain cooling and preliminary draft, the cooling distance of spun filament be controlled at 0.88m～Vertical range in 1.03m, spinneret and cooling water tank between the water surface is controlled at 3cm～8cm, pre-Drafting silk through 97 DEG C～99 DEG C high temperature the first drawing-off water baths and the second draw roll, 108.5 DEG C～113 DEG C of high temperature second drawing-off deep fat baths and the 3rd draw roll are carried out twice hot drawing-off, with soya-bean oil orEthylene glycol is as drawing-off heat medium, and preliminary draft silk is undertaken by twice drawing-off electrical heating drafting machineAbove-mentioned twice hot drawing-off, drawing-off general times is controlled at 9.6 times～10.0 times, employing 0.57MPa～Cooling fast after the oil removing of 0.62MPa high pressure draught, so that with the receipts silk machine rolling fibre of torque motorDimension bundle; Bundle dividing thread tension is controlled at 26%～34% of fibrous fracture brute force, divides through sub-wire machineSilk is marine fish culture etting making fiber.