CN104328597B - Three-layer mesh fabric of a kind of weatherability and preparation method thereof - Google Patents
Three-layer mesh fabric of a kind of weatherability and preparation method thereof Download PDFInfo
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- CN104328597B CN104328597B CN201410417639.XA CN201410417639A CN104328597B CN 104328597 B CN104328597 B CN 104328597B CN 201410417639 A CN201410417639 A CN 201410417639A CN 104328597 B CN104328597 B CN 104328597B
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Abstract
The present invention relates to a kind of preparation method of three-layer mesh fabric of weatherability, be made up of veil, filling and the support yarn be connected to therebetween; Veil, filling and support yarn are to be made into the weatherability three-layer mesh fabric of 3 D stereo through volume mode; Described veil is made into by weatherability polyester multifilament and cotton fiber the structure that is parallel to each other; Described filling is made into by weatherability polyester multifilament and nylon yarn the structure that is parallel to each other; Described support yarn is that weatherability polyester monofilament is made into.The present invention due to beta-silicon nitride powder purity high, particle diameter is little, be evenly distributed, specific area is large, and surface-activity is high, and apparent density is low, ultraviolet reflection rate is more than 95% and absorbs the absorptivity of infrared band more than 97%, containing silicon nitride in weatherability fiber, there is good weatherability, to extend screen cloth service life.
Description
[technical field]
The present invention relates to technical field of textile production, specifically, is three-layer mesh fabric of a kind of weatherability and preparation method thereof.
[background technology]
Three-layer mesh fabric, the i.e. birth of space fabric and development or thing in nearest Two decades years, people are to its exploitation and be familiar with also more limited, and we are necessary comprehensively and deep this material of understanding for this reason, could utilize and play the advantage of space fabric fully.
Three-layer mesh fabric is classified according to production method, has weft-knitted space fabric and warp-knitted spacer fabric two class.Warp-knitted spacer fabric is produced on double-needle bed raschel warp knitting machine, and the spacing of its knocking-over bar can up to 65mm, and current equipment can industrialization production thicker space fabric.And the thickness of warp-knitted spacer fabric, plane No., the selection of raw material and excursion are very large, so warp-knitted spacer fabric occupies the main flow in market.Three-layer mesh fabric then can be produced on two class weft knitting equipment, i.e. weft-knitted two-sided large circle machine and two-needle bar straight-bar machines.The weft-knitted space fabric that two-sided large circle machine is produced, thickness depends on the gap door of syringe and dials, therefore has great limitation, usually all within 5mm.
Generally speaking, three-layer mesh fabric causes space fabric to have lot of advantages due to the 3-D solid structure of its uniqueness.First, space fabric has good physical and mechanical properties, and not only intensity aspect can meet the needs of normal usage, is having certain elasticity through broadwise, and thickness direction also has the good elasticity of compression.
Three-layer mesh fabric is mainly used in clothes, medical treatment, agricultural, automobile, household articles, building reinforce, the industries such as transport, realizes strengthening, protects, the effect such as warming, health care.At present, the space fabric of China is mainly used in footwear material and case and bag series products, and has broken through these fields abroad, enters above-mentioned every field, and on European market, achieve certain market share with the role of Technical Textiles within the short time.
China Patent Publication No. CN103556384A relates to the braid method of a kind of monochrome or polychrome double-layer partition jacquard weave warp knitting cloth, and it comprises the following steps: (1) adopts the figured pattern of computer design warp knitting cloth; (2) braiding prepares; (3) input parameter on jacquard warp, knitting, obtains the double-layer partition jacquard weave warp knitting cloth of predetermined pattern; The braid method adopted is unique, the warp run-in of each yarn of conservative control and tension force, the monochrome obtained or polychrome double-layer partition jacquard weave warp knitting cloth comprise top layer and bottom, irregular braid method is adopted between its top layer and bottom, adopt yarn to be connected between top layer with bottom or adopt yarn to connect and do not adopt yarn to be connected to be arranged alternately, yarn junction is not adopted to form clearance layer, the elastic materials such as cotton-wool, lint or sponge can be filled in gap, make gap portion protruding, thus make woven cloth entirety have different level effects.
China Patent Publication No. CN101864638A relates to a kind of three-layer mesh fabric with excellent moisture absorption property, to comprise by yarn with the upper epidermis be made into through volume mode, layer and the wall that is connected to therebetween, in each comb yarn of described formation upper epidermis and/or layer, have at least a comb yarn to be hemp yarn; Selecting hemp yarn to interweave in three-layer mesh fabric, when not affecting other performance indications of three-layer mesh fabric, substantially improving the hygroscopicity of three-layer mesh fabric.
[summary of the invention]
The object of the invention is to overcome the deficiencies in the prior art, three-layer mesh fabric of a kind of weatherability and preparation method thereof is provided.
The object of the invention is to be achieved through the following technical solutions:
A three-layer mesh fabric for weatherability, is made up of veil, filling and the support yarn be connected to therebetween; Veil, filling and support yarn are to be made into the weatherability three-layer mesh fabric of 3 D stereo through volume mode; Described veil is made into by weatherability polyester multifilament and cotton fiber the structure that is parallel to each other; Described filling is made into by weatherability polyester multifilament and nylon yarn the structure that is parallel to each other; Described support yarn is that weatherability polyester monofilament is made into.
Described veil and the equal braided mesh of filling, its shape is circular, square, rectangle, the one in octagon.
The dawn number of described weatherability polyester monofilament was 50 ~ 500 dawn.
The specification of the weatherability polyester multifilament of described veil is 100D, 960mm/Rack.
The specification of the weatherability polyester multifilament of described filling is 75D, 2400mm/Rack.
D is the unit representing filament thickness, and mm/Rack refers to the yarn-using amount of 480 lines.
The technological process of the manufacture method of three-layer mesh fabric mainly comprises the following steps: warping, upper axle, entry, weave, grey cloth inspection, put in storage, deliver from godown, join that cylinder, margin to seam, base are fixed, refining (removing cured matter), washing, dehydration, dyeing, washing, dehydration, sizing, finished product inspection, packaging, finished product warehouse-in.
A preparation method for weatherability polyester monofilament, its detailed process is:
Weatherability PBT master batch and large bright PET chips are carried out melt spinning, and spinning process adopts UDY-DT technique; Wherein the type of cooling adopts quenching or naturally cools, and obtains the non-oriented silk of terylene, then drawn wherein stretching process stretching ratio 1.5 ~ 3.5; Obtain the polyester monofilament with weatherability function;
The mass fraction of weatherability PBT master batch in polyester monofilament is 10 ~ 15%;
Polyester monofilament spinning technique:
Spinning temperature is 275 ~ 320 DEG C;
Cooling air temperature is 15 ~ 25 DEG C, wind speed 0.1m/s ~ 5m/s, or naturally cools;
Spinning speed is 1000 ~ 1200m/min.
A preparation method for weatherability polyester multifilament, its detailed process is:
Weatherability PBT master batch and large bright PET chips are extruded blended and melting through screw machine, and make melt, carry out spinning through spinning pack, strand becomes as-spun fibre through lateral blowing cooled and solidified; The as-spun fibre solidified oils; Spun filament, after oiling, batches shaping by up-coiler; The precursor bobbin batching shaping adopts stretching-machine to carry out adding heat stretching process, after adding hot-stretch, obtains finished product weatherability polyester multifilament; The mass fraction of weatherability PBT master batch in polyester multifilament is 10 ~ 15%.
Wherein:
The temperature of screw machine extruding is: 270 ~ 280 DEG C, a district, two 275 ~ 285 DEG C, districts, three 280 ~ 290 DEG C, districts, four 280 ~ 295 DEG C, districts, five 275 ~ 290 DEG C, districts, six 275 ~ 290 DEG C, districts, screw pressure is 95 ~ 105kg/cm
2.
The technique of lateral blowing is: lateral blowing temperature is 16 ~ 25 DEG C, and relative humidity is 80% ~ 90%.
The technique oiled is: finish mass concentration is 10 ~ 25%, and oil tanker rotating speed is 4 ~ 10 revs/min.
The technique of batching shaping is: temperature is 20 ~ 28 DEG C, and relative humidity is 45 ~ 65%.
The concrete technology stretched is: first step draft temperature is 120 ~ 145 DEG C, draw ratio is 2.5 ~ 4.5, second step draft temperature 225 ~ 245 DEG C, draw ratio is 1.2 ~ 2.2, total stretching ratio is 3 ~ 9, heat setting temperature 140 ~ 250 DEG C, between stretching, temperature controls is 22 ~ 28 DEG C, and relative humidity is 55 ~ 75%.
A preparation method for weatherability PBT master batch, is characterized in that,
(1) rough lapping tea charcoal composite powder preparation
By nano-silicon nitride, Nano quantum energy mineral powder mixes with tea Carbon Materials and grinds, then carries out calcining and obtain rough lapping tea charcoal composite powder;
Concrete thinning process: by nano-silicon nitride, Nano quantum energy mineral powder mixes with tea Carbon Materials, wherein, nano-silicon nitride, the mass ratio of Nano quantum energy mineral powder and tea Carbon Materials is 1: 1: 5 ~ 7, rough lapping is carried out again at three-roll grinder, controlling the rear average grain diameter of grinding is 20 ~ 30 μm, and then carry out ball mill and carry out speed lapping and prepare tea charcoal precalcining composite powder, controlling precalcining composite powder average grain diameter is 5 ~ 10 μm, after grinding, precalcining composite powder repeatedly calcines 2 ~ 3 times again under 1200 DEG C of hot conditions, calcination time is 2 ~ 5h, naturally 300 eye mesh screen filtrations are carried out after cooling, remove grain diameter and be greater than 300 object impurity, prepare rough lapping tea charcoal composite powder,
(2) preparation of acidifying nano composite powder
Step (1) is obtained rough lapping tea charcoal composite powder and carry out oxidation acidifying, obtain acidifying nano composite powder;
Concrete detailed step is: carry out separating twice with dry powder equipment-NNM6 efficient nano sand mill to rough lapping tea charcoal composite powder, control average grain diameter is 80 ~ 100nm, and then carry out acidifying activation with the oxidation acidification mixed liquor of sulfuric acid and hydrogen peroxide, the volume ratio of the concentrated sulfuric acid and hydrogen peroxide is 7: 3, concentrated sulfuric acid mass fraction is 98%, the mass fraction of hydrogen peroxide is 30%, controlling acidifying soak time is 30 ~ 90min, controlling acidifying soak time is 75 ~ 95 DEG C, high speed centrifugation process 30 ~ 45min is carried out after acidifying activation processing, under 70 ~ 80 DEG C of conditions, dry 60 ~ 90min prepares acidifying nano composite powder again.First rough lapping carries out nanometer fine lapping again, on the basis ensureing grinding efficiency, reduces the larger impurity of particle diameter to the impact of nanometer fine lapping, improves the homogeneity of powder after grinding, reduce milling time, ensure that nano composite powder is in acidifying oxidizing process uniformity.
(3) preparation of acidifying Nano quantum energy composite powder
The acidifying nano composite powder that step (2) obtains is carried out fermentation and high-temperature sterilization process, obtains acidifying Nano quantum energy composite powder;
Detailed process is as follows: the acidifying nano composite powder prepared is mixed into water under constant temperature and humidity condition and fermentation ferment carried out fermentation process after 60 days, wherein temperature controls is 25 DEG C, it is 45 ~ 75% that relative humidity controls, after fermentation process, acidifying nano composite powder is again at 120 DEG C of high-temperature sterilization process 60 ~ 90min, then transfer in fluid-bed dryer and prepare acidifying Nano quantum energy composite powder at 60 ~ 90 DEG C of dry 60min, wherein fermentation process raw material is: acidifying nano composite powder mass fraction is 50 ~ 70%, the mass fraction of fermentation ferment is 10 ~ 20%, deionized water is surplus.Adopt sulfuric acid and hydrogen peroxide to carry out acidifying oxidation processes makes tea carbon surface generate to have can reactivity carboxyl functional group, be beneficial to and carry out esterification with hydroxylated CBT prepolymer; Sulfuric acid and hydrogen peroxide carry out carboxylation reaction to Carbon Materials simultaneously, and carboxylated condition is controlled, and reaction condition is gentle, and post processing is easy.
(4) preparation of weatherability PBT master batch
By CBT powder and 1,6 hexylene glycols carry out making beating dispersion, add catalyst dihydroxyalkyl stannic chloride simultaneously, and then are heated to 180 ~ 200 DEG C and carry out reaction 20 ~ 30min, obtain hydroxy-end capped CBT just polymers; Adopt the method for in-situ polymerization, under the conditions of polymerization temperature vary of 210 ~ 240 DEG C, first for hydroxy-end capped CBT polymers and acidifying Nano quantum energy composite powder (N namely in equation) are carried out home position polymerization reaction, and the reaction time is 2 ~ 4h, prepares weatherability PBT master batch; Described acidifying Nano quantum energy composite powder accounts for CBT powder and 1,0.2 ~ 0.5% of both 6 hexylene glycols gross mass; Adopt CBT powder to have reaction temperature low, and CBT viscosity under melting condition is low, is beneficial to esterification.Concrete reaction equation is as follows: wherein N represents acidifying Nano quantum energy composite powder;
Compared with prior art, good effect of the present invention is:
Nano quantum energy mineral powder is purchased from QUANTUMENERGY company of Korea S; Mainly contain SiO
2be 60%, K
2o is 2%, Fe
2o is 8%, Al
2o
3be 25%, other are 5%, and diameter is between 0.1 ~ 5cm.It has good natural temperature regulatory function; And far infrared release function.
CBT powder pulverizes preparation by CBT160; CBT is white solid particle at normal temperatures, can become the same liquid of water when temperature reaches 190 DEG C, and under identical viscosity, the viscosity of PBT is its 5000 times.And CBT and PBT, PET, PTT have good compatibility, wettability is strong.Can in-situ polymerization be there is when being heated to 220 DEG C, namely generating PBT material.
Because tea charcoal inherently has the color of black, therefore eliminate this procedure of dyeing in process of production, avoid the infringement of industrial dye to human body; This fiber has absorption, eliminates odor function; Containing a large amount of trace element useful to health; There is weatherability, anion emission, antimicrobial health care function; Fabric soft, comfortable function is good; Security is high, safe, comfortable with skin contact; Built-in micro-nano tea charcoal, show outstanding washability, fabric function keeps for a long time; Be widely used in underwear, coat, sportswear, socks, medical products, bedding, screen cloth, filtering material etc.
Because beta-silicon nitride powder purity is high, particle diameter is little, is evenly distributed, and specific area is large, surface-activity is high, apparent density is low, and ultraviolet reflection rate is more than 95% and absorbs the absorptivity of infrared band more than 97%, containing silicon nitride in weatherability fiber, there is good weatherability, to extend screen cloth service life, this three-layer mesh fabric is the novel kind of a kind of high-quality, environmental protection, can meet the requirements at the higher level of consumers in general.
In the surface layer and bottom of web materials, add nylon fiber, improve the intensity of screen cloth, to improve the weatherability of screen cloth, to extend its service life.
[accompanying drawing explanation]
Fig. 1 is the outward appearance signal of three-layer mesh fabric;
In figure, 1 veil; 2 support yarn; 3 is filling.
[detailed description of the invention]
The detailed description of the invention of the three-layer mesh fabric of a kind of weatherability of the present invention and preparation method thereof is below provided.
Embodiment 1
Refer to accompanying drawing 1, a kind of three-layer mesh fabric of weatherability, be made up of veil 1, filling 3 and the support yarn 2 be connected to therebetween; Veil, filling and support yarn are to be made into the weatherability three-layer mesh fabric of 3 D stereo through volume mode; Described veil is made into by weatherability polyester multifilament and cotton fiber the structure that is parallel to each other; Described filling is made into by weatherability polyester multifilament and nylon yarn the structure that is parallel to each other; Described support yarn is that weatherability polyester monofilament is made into.
Described veil and the equal braided mesh of filling, its shape is circular.
A preparation method for weatherability polyester monofilament, its detailed process is:
Weatherability PBT master batch and large bright PET chips are carried out melt spinning, and spinning process adopts UDY-DT technique; Wherein the type of cooling adopts quenching or naturally cools, and obtains the non-oriented silk of terylene, then drawn wherein stretching process stretching ratio 1.5 ~ 3.5; Obtain the polyester monofilament with weatherability function;
The mass fraction of weatherability PBT master batch in polyester monofilament is 10%;
Polyester monofilament spinning technique:
Spinning temperature is 275 ~ 320 DEG C;
Cooling air temperature is 15 ~ 25 DEG C, wind speed 0.1m/s ~ 5m/s, or naturally cools;
Spinning speed is 1000 ~ 1200m/min.
A preparation method for weatherability polyester multifilament, its detailed process is:
Weatherability PBT master batch and large bright PET chips are extruded blended and melting through screw machine, and make melt, carry out spinning through spinning pack, strand becomes as-spun fibre through lateral blowing cooled and solidified; The as-spun fibre solidified oils; Spun filament, after oiling, batches shaping by up-coiler; The precursor bobbin batching shaping adopts stretching-machine to carry out adding heat stretching process, after adding hot-stretch, obtains finished product weatherability polyester multifilament; The mass fraction of weatherability PBT master batch in polyester multifilament is 10%.
Wherein:
The temperature of screw machine extruding is: 270 ~ 280 DEG C, a district, two 275 ~ 285 DEG C, districts, three 280 ~ 290 DEG C, districts, four 280 ~ 295 DEG C, districts, five 275 ~ 290 DEG C, districts, six 275 ~ 290 DEG C, districts, screw pressure is 95 ~ 105kg/cm
2.
The technique of lateral blowing is: lateral blowing temperature is 16 ~ 25 DEG C, and relative humidity is 80% ~ 90%.
The technique oiled is: finish mass concentration is 10 ~ 25%, and oil tanker rotating speed is 4 ~ 10 revs/min.
The technique of batching shaping is: temperature is 20 ~ 28 DEG C, and relative humidity is 45 ~ 65%.
The concrete technology stretched is: first step draft temperature is 120 ~ 145 DEG C, draw ratio is 2.5 ~ 4.5, second step draft temperature 225 ~ 245 DEG C, draw ratio is 1.2 ~ 2.2, total stretching ratio is 3 ~ 9, heat setting temperature 140 ~ 250 DEG C, between stretching, temperature controls is 22 ~ 28 DEG C, and relative humidity is 55 ~ 75%.
A preparation method for weatherability PBT master batch, is characterized in that,
(1) rough lapping tea charcoal composite powder preparation
By nano-silicon nitride, Nano quantum energy mineral powder mixes with tea Carbon Materials and grinds, then carries out calcining and obtain rough lapping tea charcoal composite powder;
Concrete thinning process: by nano-silicon nitride, Nano quantum energy mineral powder mixes with tea Carbon Materials, wherein, nano-silicon nitride, the mass ratio of Nano quantum energy mineral powder and tea Carbon Materials is 1: 1: 5, rough lapping is carried out again at three-roll grinder, controlling the rear average grain diameter of grinding is 20 ~ 30 μm, and then carry out ball mill and carry out speed lapping and prepare tea charcoal precalcining composite powder, controlling precalcining composite powder average grain diameter is 5 ~ 10 μm, after grinding, precalcining composite powder repeatedly calcines 2 ~ 3 times again under 1200 DEG C of hot conditions, calcination time is 2 ~ 5h, naturally 300 eye mesh screen filtrations are carried out after cooling, remove grain diameter and be greater than 300 object impurity, prepare rough lapping tea charcoal composite powder,
(2) preparation of acidifying nano composite powder
Step (1) is obtained rough lapping tea charcoal composite powder and carry out oxidation acidifying, obtain acidifying nano composite powder;
Concrete detailed step is: carry out separating twice with dry powder equipment-NNM6 efficient nano sand mill to rough lapping tea charcoal composite powder, control average grain diameter is 80 ~ 100nm, and then carry out acidifying activation with the oxidation acidification mixed liquor of sulfuric acid and hydrogen peroxide, the volume ratio of the concentrated sulfuric acid and hydrogen peroxide is 7: 3, concentrated sulfuric acid mass fraction is 98%, the mass fraction of hydrogen peroxide is 30%, controlling acidifying soak time is 30 ~ 90min, controlling acidifying soak time is 75 ~ 95 DEG C, high speed centrifugation process 30 ~ 45min is carried out after acidifying activation processing, under 70 ~ 80 DEG C of conditions, dry 60 ~ 90min prepares acidifying nano composite powder again.First rough lapping carries out nanometer fine lapping again, on the basis ensureing grinding efficiency, reduces the larger impurity of particle diameter to the impact of nanometer fine lapping, improves the homogeneity of powder after grinding, reduce milling time, ensure that nano composite powder is in acidifying oxidizing process uniformity.
(3) preparation of acidifying Nano quantum energy composite powder
The acidifying nano composite powder that step (2) obtains is carried out fermentation and high-temperature sterilization process, obtains acidifying Nano quantum energy composite powder;
Detailed process is as follows: the acidifying nano composite powder prepared is mixed into water under constant temperature and humidity condition and fermentation ferment carried out fermentation process after 60 days, wherein temperature controls is 25 DEG C, it is 45 ~ 75% that relative humidity controls, after fermentation process, acidifying nano composite powder is again at 120 DEG C of high-temperature sterilization process 60 ~ 90min, then transfer in fluid-bed dryer and prepare acidifying Nano quantum energy composite powder at 60 ~ 90 DEG C of dry 60min, wherein fermentation process raw material is: acidifying nano composite powder mass fraction is 50%, the mass fraction of fermentation ferment is 10%, deionized water is 40%.Adopt sulfuric acid and hydrogen peroxide to carry out acidifying oxidation processes makes tea carbon surface generate to have can reactivity carboxyl functional group, be beneficial to and carry out esterification with hydroxylated CBT prepolymer; Sulfuric acid and hydrogen peroxide carry out carboxylation reaction to Carbon Materials simultaneously, and carboxylated condition is controlled, and reaction condition is gentle, and post processing is easy.
(4) preparation of weatherability PBT master batch
By CBT powder and 1,6 hexylene glycols carry out making beating dispersion, add catalyst dihydroxyalkyl stannic chloride simultaneously, and then are heated to 180 ~ 200 DEG C and carry out reaction 20 ~ 30min, obtain hydroxy-end capped CBT just polymers; Adopt the method for in-situ polymerization, under the conditions of polymerization temperature vary of 210 ~ 240 DEG C, first for hydroxy-end capped CBT polymers and acidifying Nano quantum energy composite powder (N namely in equation) are carried out home position polymerization reaction, and the reaction time is 2 ~ 4h, prepares weatherability PBT master batch; Described acidifying Nano quantum energy composite powder accounts for CBT powder and 1,0.2% of both 6 hexylene glycols gross mass; Adopt CBT powder to have reaction temperature low, and CBT viscosity under melting condition is low, is beneficial to esterification.
Embodiment 2
A three-layer mesh fabric for weatherability, is made up of veil, filling and the support yarn be connected to therebetween; Veil, filling and support yarn are to be made into the weatherability three-layer mesh fabric of 3 D stereo through volume mode; Described veil is made into by weatherability polyester multifilament and cotton fiber the structure that is parallel to each other; Described filling is made into by weatherability polyester multifilament and nylon yarn the structure that is parallel to each other; Described support yarn is that weatherability polyester monofilament is made into.
Described veil and the equal braided mesh of filling, its shape is square.
A preparation method for weatherability polyester monofilament, its detailed process is:
Weatherability PBT master batch and large bright PET chips are carried out melt spinning, and spinning process adopts UDY-DT technique; Wherein the type of cooling adopts quenching or naturally cools, and obtains the non-oriented silk of terylene, then drawn wherein stretching process stretching ratio 1.5 ~ 3.5; Obtain the polyester monofilament with weatherability function;
The mass fraction of weatherability PBT master batch in polyester monofilament is 12%;
Polyester monofilament spinning technique:
Spinning temperature is 275 ~ 320 DEG C;
Cooling air temperature is 15 ~ 25 DEG C, wind speed 0.1m/s ~ 5m/s, or naturally cools;
Spinning speed is 1000 ~ 1200m/min.
A preparation method for weatherability polyester multifilament, its detailed process is:
Weatherability PBT master batch and large bright PET chips are extruded blended and melting through screw machine, and make melt, carry out spinning through spinning pack, strand becomes as-spun fibre through lateral blowing cooled and solidified; The as-spun fibre solidified oils; Spun filament, after oiling, batches shaping by up-coiler; The precursor bobbin batching shaping adopts stretching-machine to carry out adding heat stretching process, after adding hot-stretch, obtains finished product weatherability polyester multifilament; The mass fraction of weatherability PBT master batch in polyester multifilament is 12%.
Wherein:
The temperature of screw machine extruding is: 270 ~ 280 DEG C, a district, two 275 ~ 285 DEG C, districts, three 280 ~ 290 DEG C, districts, four 280 ~ 295 DEG C, districts, five 275 ~ 290 DEG C, districts, six 275 ~ 290 DEG C, districts, screw pressure is 95 ~ 105kg/cm
2.
The technique of lateral blowing is: lateral blowing temperature is 16 ~ 25 DEG C, and relative humidity is 80% ~ 90%.
The technique oiled is: finish mass concentration is 10 ~ 25%, and oil tanker rotating speed is 4 ~ 10 revs/min.
The technique of batching shaping is: temperature is 20 ~ 28 DEG C, and relative humidity is 45 ~ 65%.
The concrete technology stretched is: first step draft temperature is 120 ~ 145 DEG C, draw ratio is 2.5 ~ 4.5, second step draft temperature 225 ~ 245 DEG C, draw ratio is 1.2 ~ 2.2, total stretching ratio is 3 ~ 9, heat setting temperature 140 ~ 250 DEG C, between stretching, temperature controls is 22 ~ 28 DEG C, and relative humidity is 55 ~ 75%.
A preparation method for weatherability PBT master batch, is characterized in that,
(1) rough lapping tea charcoal composite powder preparation
By nano-silicon nitride, Nano quantum energy mineral powder mixes with tea Carbon Materials and grinds, then carries out calcining and obtain rough lapping tea charcoal composite powder;
Concrete thinning process: by nano-silicon nitride, Nano quantum energy mineral powder mixes with tea Carbon Materials, wherein, nano-silicon nitride, the mass ratio of Nano quantum energy mineral powder and tea Carbon Materials is 1: 1: 6, rough lapping is carried out again at three-roll grinder, controlling the rear average grain diameter of grinding is 20 ~ 30 μm, and then carry out ball mill and carry out speed lapping and prepare tea charcoal precalcining composite powder, controlling precalcining composite powder average grain diameter is 5 ~ 10 μm, after grinding, precalcining composite powder repeatedly calcines 2 ~ 3 times again under 1200 DEG C of hot conditions, calcination time is 2 ~ 5h, naturally 300 eye mesh screen filtrations are carried out after cooling, remove grain diameter and be greater than 300 object impurity, prepare rough lapping tea charcoal composite powder,
(2) preparation of acidifying nano composite powder
Step (1) is obtained rough lapping tea charcoal composite powder and carry out oxidation acidifying, obtain acidifying nano composite powder;
Concrete detailed step is: carry out separating twice with dry powder equipment-NNM6 efficient nano sand mill to rough lapping tea charcoal composite powder, control average grain diameter is 80 ~ 100nm, and then carry out acidifying activation with the oxidation acidification mixed liquor of sulfuric acid and hydrogen peroxide, the volume ratio of the concentrated sulfuric acid and hydrogen peroxide is 7: 3, concentrated sulfuric acid mass fraction is 98%, the mass fraction of hydrogen peroxide is 30%, controlling acidifying soak time is 30 ~ 90min, controlling acidifying soak time is 75 ~ 95 DEG C, high speed centrifugation process 30 ~ 45min is carried out after acidifying activation processing, under 70 ~ 80 DEG C of conditions, dry 60 ~ 90min prepares acidifying nano composite powder again.First rough lapping carries out nanometer fine lapping again, on the basis ensureing grinding efficiency, reduces the larger impurity of particle diameter to the impact of nanometer fine lapping, improves the homogeneity of powder after grinding, reduce milling time, ensure that nano composite powder is in acidifying oxidizing process uniformity.
(3) preparation of acidifying Nano quantum energy composite powder
The acidifying nano composite powder that step (2) obtains is carried out fermentation and high-temperature sterilization process, obtains acidifying Nano quantum energy composite powder;
Detailed process is as follows: the acidifying nano composite powder prepared is mixed into water under constant temperature and humidity condition and fermentation ferment carried out fermentation process after 60 days, wherein temperature controls is 25 DEG C, it is 45 ~ 75% that relative humidity controls, after fermentation process, acidifying nano composite powder is again at 120 DEG C of high-temperature sterilization process 60 ~ 90min, then transfer in fluid-bed dryer and prepare acidifying Nano quantum energy composite powder at 60 ~ 90 DEG C of dry 60min, wherein fermentation process raw material is: acidifying nano composite powder mass fraction is 60%, the mass fraction of fermentation ferment is 15%, deionized water is 25%.Adopt sulfuric acid and hydrogen peroxide to carry out acidifying oxidation processes makes tea carbon surface generate to have can reactivity carboxyl functional group, be beneficial to and carry out esterification with hydroxylated CBT prepolymer; Sulfuric acid and hydrogen peroxide carry out carboxylation reaction to Carbon Materials simultaneously, and carboxylated condition is controlled, and reaction condition is gentle, and post processing is easy.
(4) preparation of weatherability PBT master batch
By CBT powder and 1,6 hexylene glycols carry out making beating dispersion, add catalyst dihydroxyalkyl stannic chloride simultaneously, and then are heated to 180 ~ 200 DEG C and carry out reaction 20 ~ 30min, obtain hydroxy-end capped CBT just polymers; Adopt the method for in-situ polymerization, under the conditions of polymerization temperature vary of 210 ~ 240 DEG C, first for hydroxy-end capped CBT polymers and acidifying Nano quantum energy composite powder (N namely in equation) are carried out home position polymerization reaction, and the reaction time is 2 ~ 4h, prepares weatherability PBT master batch; Described acidifying Nano quantum energy composite powder accounts for CBT powder and 1,0.35% of both 6 hexylene glycols gross mass; Adopt CBT powder to have reaction temperature low, and CBT viscosity under melting condition is low, is beneficial to esterification.
Embodiment 3
A three-layer mesh fabric for weatherability, is made up of veil, filling and the support yarn be connected to therebetween; Veil, filling and support yarn are to be made into the weatherability three-layer mesh fabric of 3 D stereo through volume mode; Described veil is made into by weatherability polyester multifilament and cotton fiber the structure that is parallel to each other; Described filling is made into by weatherability polyester multifilament and nylon yarn the structure that is parallel to each other; Described support yarn is that weatherability polyester monofilament is made into.
Described veil and the equal braided mesh of filling, its shape is octagon.
A preparation method for weatherability polyester monofilament, its detailed process is:
Weatherability PBT master batch and large bright PET chips are carried out melt spinning, and spinning process adopts UDY-DT technique; Wherein the type of cooling adopts quenching or naturally cools, and obtains the non-oriented silk of terylene, then drawn wherein stretching process stretching ratio 1.5 ~ 3.5; Obtain the polyester monofilament with weatherability function;
The mass fraction of weatherability PBT master batch in polyester monofilament is 15%;
Polyester monofilament spinning technique:
Spinning temperature is 275 ~ 320 DEG C;
Cooling air temperature is 15 ~ 25 DEG C, wind speed 0.1m/s ~ 5m/s, or naturally cools;
Spinning speed is 1000 ~ 1200m/min.
A preparation method for weatherability polyester multifilament, its detailed process is:
Weatherability PBT master batch and large bright PET chips are extruded blended and melting through screw machine, and make melt, carry out spinning through spinning pack, strand becomes as-spun fibre through lateral blowing cooled and solidified; The as-spun fibre solidified oils; Spun filament, after oiling, batches shaping by up-coiler; The precursor bobbin batching shaping adopts stretching-machine to carry out adding heat stretching process, after adding hot-stretch, obtains finished product weatherability polyester multifilament; The mass fraction of weatherability PBT master batch in polyester multifilament is 15%.
Wherein:
The temperature of screw machine extruding is: 270 ~ 280 DEG C, a district, two 275 ~ 285 DEG C, districts, three 280 ~ 290 DEG C, districts, four 280 ~ 295 DEG C, districts, five 275 ~ 290 DEG C, districts, six 275 ~ 290 DEG C, districts, screw pressure is 95 ~ 105kg/cm
2.
The technique of lateral blowing is: lateral blowing temperature is 16 ~ 25 DEG C, and relative humidity is 80% ~ 90%.
The technique oiled is: finish mass concentration is 10 ~ 25%, and oil tanker rotating speed is 4 ~ 10 revs/min.
The technique of batching shaping is: temperature is 20 ~ 28 DEG C, and relative humidity is 45 ~ 65%.
The concrete technology stretched is: first step draft temperature is 120 ~ 145 DEG C, draw ratio is 2.5 ~ 4.5, second step draft temperature 225 ~ 245 DEG C, draw ratio is 1.2 ~ 2.2, total stretching ratio is 3 ~ 9, heat setting temperature 140 ~ 250 DEG C, between stretching, temperature controls is 22 ~ 28 DEG C, and relative humidity is 55 ~ 75%.
A preparation method for weatherability PBT master batch, is characterized in that,
(1) rough lapping tea charcoal composite powder preparation
By nano-silicon nitride, Nano quantum energy mineral powder mixes with tea Carbon Materials and grinds, then carries out calcining and obtain rough lapping tea charcoal composite powder;
Concrete thinning process: by nano-silicon nitride, Nano quantum energy mineral powder mixes with tea Carbon Materials, wherein, nano-silicon nitride, the mass ratio of Nano quantum energy mineral powder and tea Carbon Materials is 1: 1: 7, rough lapping is carried out again at three-roll grinder, controlling the rear average grain diameter of grinding is 20 ~ 30 μm, and then carry out ball mill and carry out speed lapping and prepare tea charcoal precalcining composite powder, controlling precalcining composite powder average grain diameter is 5 ~ 10 μm, after grinding, precalcining composite powder repeatedly calcines 2 ~ 3 times again under 1200 DEG C of hot conditions, calcination time is 2 ~ 5h, naturally 300 eye mesh screen filtrations are carried out after cooling, remove grain diameter and be greater than 300 object impurity, prepare rough lapping tea charcoal composite powder,
(2) preparation of acidifying nano composite powder
Step (1) is obtained rough lapping tea charcoal composite powder and carry out oxidation acidifying, obtain acidifying nano composite powder;
Concrete detailed step is: carry out separating twice with dry powder equipment-NNM6 efficient nano sand mill to rough lapping tea charcoal composite powder, control average grain diameter is 80 ~ 100nm, and then carry out acidifying activation with the oxidation acidification mixed liquor of sulfuric acid and hydrogen peroxide, the volume ratio of the concentrated sulfuric acid and hydrogen peroxide is 7: 3, concentrated sulfuric acid mass fraction is 98%, the mass fraction of hydrogen peroxide is 30%, controlling acidifying soak time is 30 ~ 90min, controlling acidifying soak time is 75 ~ 95 DEG C, high speed centrifugation process 30 ~ 45min is carried out after acidifying activation processing, under 70 ~ 80 DEG C of conditions, dry 60 ~ 90min prepares acidifying nano composite powder again.First rough lapping carries out nanometer fine lapping again, on the basis ensureing grinding efficiency, reduces the larger impurity of particle diameter to the impact of nanometer fine lapping, improves the homogeneity of powder after grinding, reduce milling time, ensure that nano composite powder is in acidifying oxidizing process uniformity.
(3) preparation of acidifying Nano quantum energy composite powder
The acidifying nano composite powder that step (2) obtains is carried out fermentation and high-temperature sterilization process, obtains acidifying Nano quantum energy composite powder;
Detailed process is as follows: the acidifying nano composite powder prepared is mixed into water under constant temperature and humidity condition and fermentation ferment carried out fermentation process after 60 days, wherein temperature controls is 25 DEG C, it is 45 ~ 75% that relative humidity controls, after fermentation process, acidifying nano composite powder is again at 120 DEG C of high-temperature sterilization process 60 ~ 90min, then transfer in fluid-bed dryer and prepare acidifying Nano quantum energy composite powder at 60 ~ 90 DEG C of dry 60min, wherein fermentation process raw material is: acidifying nano composite powder mass fraction is 70%, the mass fraction of fermentation ferment is 20%, deionized water is 10%.Adopt sulfuric acid and hydrogen peroxide to carry out acidifying oxidation processes makes tea carbon surface generate to have can reactivity carboxyl functional group, be beneficial to and carry out esterification with hydroxylated CBT prepolymer; Sulfuric acid and hydrogen peroxide carry out carboxylation reaction to Carbon Materials simultaneously, and carboxylated condition is controlled, and reaction condition is gentle, and post processing is easy.
(4) preparation of weatherability PBT master batch
By CBT powder and 1,6 hexylene glycols carry out making beating dispersion, add catalyst dihydroxyalkyl stannic chloride simultaneously, and then are heated to 180 ~ 200 DEG C and carry out reaction 20 ~ 30min, obtain hydroxy-end capped CBT just polymers; Adopt the method for in-situ polymerization, under the conditions of polymerization temperature vary of 210 ~ 240 DEG C, first for hydroxy-end capped CBT polymers and acidifying Nano quantum energy composite powder (N namely in equation) are carried out home position polymerization reaction, and the reaction time is 2 ~ 4h, prepares weatherability PBT master batch; Described acidifying Nano quantum energy composite powder accounts for CBT powder and 1,0.5% of both 6 hexylene glycols gross mass; Adopt CBT powder to have reaction temperature low, and CBT viscosity under melting condition is low, is beneficial to esterification.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, without departing from the inventive concept of the premise; can also make some improvements and modifications, these improvements and modifications also should be considered within the scope of protection of the present invention.
Claims (8)
1. a three-layer mesh fabric for weatherability, is characterized in that, is made up of veil, filling and the support yarn be connected to therebetween; Veil, filling and support yarn are to be made into the weatherability three-layer mesh fabric of 3 D stereo through volume mode; Described veil is made into by weatherability polyester multifilament and cotton fiber the structure that is parallel to each other; Described filling is made into by weatherability polyester multifilament and nylon yarn the structure that is parallel to each other; Described support yarn is that weatherability polyester monofilament is made into;
The detailed process of the preparation method of described weatherability polyester monofilament is: weatherability PBT master batch and large bright PET chips are carried out melt spinning, and spinning process adopts UDY-DT technique; Wherein the type of cooling adopts quenching or naturally cools, and obtains the non-oriented silk of terylene, then drawn wherein stretching process stretching ratio 1.5 ~ 3.5; Obtain the polyester monofilament with weatherability function; The mass fraction of weatherability PBT master batch in polyester monofilament is 10 ~ 15%;
The preparation method of described weatherability PBT master batch, its concrete steps are:
(1) rough lapping tea charcoal composite powder preparation
By nano-silicon nitride, Nano quantum energy mineral powder mixes with tea Carbon Materials and grinds, then carries out calcining and obtain rough lapping tea charcoal composite powder;
(2) preparation of acidifying nano composite powder
Step (1) is obtained rough lapping tea charcoal composite powder and carry out oxidation acidifying, obtain acidifying nano composite powder;
Concrete detailed step is: carry out separating twice with dry powder equipment-NNM6 efficient nano sand mill to rough lapping tea charcoal composite powder, control average grain diameter is 80 ~ 100nm, and then carry out acidifying activation with the oxidation acidification mixed liquor of sulfuric acid and hydrogen peroxide, the volume ratio of the concentrated sulfuric acid and hydrogen peroxide is 7:3, concentrated sulfuric acid mass fraction is 98%, the mass fraction of hydrogen peroxide is 30%, controlling acidifying soak time is 30 ~ 90min, controlling acidifying activation temperature is 75 ~ 95 DEG C, high speed centrifugation process 30 ~ 45min is carried out after acidifying activation processing, under 70 ~ 80 DEG C of conditions, dry 60 ~ 90min prepares acidifying nano composite powder again,
(3) preparation of acidifying Nano quantum energy composite powder
The acidifying nano composite powder that step (2) obtains is carried out fermentation and high-temperature sterilization process, obtains acidifying Nano quantum energy composite powder;
Detailed process is as follows: the acidifying nano composite powder prepared is mixed into water under constant temperature and humidity condition and fermentation ferment carried out fermentation process after 60 days, wherein temperature controls is 25 DEG C, it is 45 ~ 75% that relative humidity controls, after fermentation process, acidifying nano composite powder is again at 120 DEG C of high-temperature sterilization process 60 ~ 90min, then transfer in fluid-bed dryer and prepare acidifying Nano quantum energy composite powder at 60 ~ 90 DEG C of dry 60min, wherein fermentation process raw material is: acidifying nano composite powder mass fraction is 50 ~ 70%, the mass fraction of fermentation ferment is 10 ~ 20%, deionized water is surplus,
(4) preparation of weatherability PBT master batch
By CBT powder and 1,6 hexylene glycols carry out making beating dispersion, add catalyst dihydroxyalkyl stannic chloride simultaneously, and then are heated to 180 ~ 200 DEG C and carry out reaction 20 ~ 30min, obtain hydroxy-end capped CBT just polymers; Adopt the method for in-situ polymerization, under the conditions of polymerization temperature vary of 210 ~ 240 DEG C, first for hydroxy-end capped CBT polymers and acidifying Nano quantum energy composite powder are carried out home position polymerization reaction, and the reaction time is 2 ~ 4h, prepares weatherability PBT master batch; Described acidifying Nano quantum energy composite powder accounts for CBT powder and 1,0.2 ~ 0.5% of both 6 hexylene glycols gross mass.
2. the three-layer mesh fabric of a kind of weatherability as claimed in claim 1, is characterized in that, described veil and the equal braided mesh of filling, and its shape is circular, square, rectangle, the one in octagon.
3. the three-layer mesh fabric of a kind of weatherability as claimed in claim 1, is characterized in that, polyester monofilament spinning technique: spinning temperature is 275 ~ 320 DEG C; Cooling air temperature is 15 ~ 25 DEG C, wind speed 0.1m/s ~ 5m/s, or naturally cools; Spinning speed is 1000 ~ 1200m/min.
4. the three-layer mesh fabric of a kind of weatherability as claimed in claim 1, it is characterized in that, the detailed process of the preparation method of described weatherability polyester multifilament is: weatherability PBT master batch and large bright PET chips are extruded blended and melting through screw machine, make melt, carry out spinning through spinning pack, strand becomes as-spun fibre through lateral blowing cooled and solidified; The as-spun fibre solidified oils; Spun filament, after oiling, batches shaping by up-coiler; The precursor bobbin batching shaping adopts stretching-machine to carry out adding heat stretching process, after adding hot-stretch, obtains finished product weatherability polyester multifilament; The mass fraction of weatherability PBT master batch in polyester multifilament is 10 ~ 15%.
5. the three-layer mesh fabric of a kind of weatherability as claimed in claim 4, is characterized in that,
The temperature of screw machine extruding is: 270 ~ 280 DEG C, a district, two 275 ~ 285 DEG C, districts, three 280 ~ 290 DEG C, districts, four 280 ~ 295 DEG C, districts, five 275 ~ 290 DEG C, districts, six 275 ~ 290 DEG C, districts, screw pressure is 95 ~ 105kg/cm
2.
6. the three-layer mesh fabric of a kind of weatherability as claimed in claim 4, is characterized in that, the technique of lateral blowing is: lateral blowing temperature is 16 ~ 25 DEG C, and relative humidity is 80% ~ 90%;
Finish mass concentration is 10 ~ 25%, and oil tanker rotating speed is 4 ~ 10 revs/min.
7. the three-layer mesh fabric of a kind of weatherability as claimed in claim 4, is characterized in that, the technique of batching shaping is: temperature is 20 ~ 28 DEG C, and relative humidity is 45 ~ 65%.
8. the three-layer mesh fabric of a kind of weatherability as claimed in claim 4, it is characterized in that, the concrete technology stretched is: first step draft temperature is 120 ~ 145 DEG C, draw ratio is 2.5 ~ 4.5, second step draft temperature 225 ~ 245 DEG C, and draw ratio is 1.2 ~ 2.2, total stretching ratio is 3 ~ 9, heat setting temperature 140 ~ 250 DEG C, between stretching, temperature controls is 22 ~ 28 DEG C, and relative humidity is 55 ~ 75%.
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