CN104149370A - Method for preparing fusible multilayer composite co-extrusion asphalt filling bags - Google Patents
Method for preparing fusible multilayer composite co-extrusion asphalt filling bags Download PDFInfo
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- CN104149370A CN104149370A CN201410329841.7A CN201410329841A CN104149370A CN 104149370 A CN104149370 A CN 104149370A CN 201410329841 A CN201410329841 A CN 201410329841A CN 104149370 A CN104149370 A CN 104149370A
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Abstract
The invention relates to a method for preparing fusible multilayer composite co-extrusion asphalt filling bags. The method comprises the following steps: preparing polyolefin, a modified polyolefin material and a compounding agent into a multilayer composite co-extrusion asphalt filling bag film blowing material; carrying out blow molding on the film blowing material and a processing parent material into a fusible multilayer composite co-extrusion asphalt filling bag body by adopting a film blowing machine set; slitting and heat-sealing to obtain a fusible multilayer composite asphalt filling bag; meanwhile, preparing polyolefin, the modified polyolefin material and the compounding agent into a fusible material, and preparing the fusible material and the processing parent material into a fusible asphalt filling knitted bag by adopting a wire drawing machine, a knitting machine (a circular knitting machine), a film laminating machine, a bag cutting machine (a bag making machine), a printer, a sewing machine and a sealing machine; manually or mechanically sleeving the fusible multilayer composite asphalt filling bag body and the fusible composite asphalt filling knitted bag together to obtain the fusible multilayer composite co-extrusion asphalt filling bag.
Description
Technical field
The invention belongs to the preparation field of macromolecular material, specifically a kind of preparation method of fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag.
Background technology
Pitch is one of material the most basic in road and building trade, and along with high speed development and the country increase to capital construction investment of national economy, its consumption has at home exceeded 1,500 ten thousand tons/year at present, and is increasing with strong momentum always.
Pitch needs to carry, packs and the processing such as transport before final use, and it carries the following two kinds of modes that mainly comprise:
1. pipeline length is carried apart from fluid;
2. packing is collecting and distributing.
The former is mainly applicable to the filling of short distance conveying or pitch transfer, modification station, because this transport model often needs higher temperature (such as being greater than 120 DEG C), to ensure that pitch is in fluid state that can be mobile, this certainly will propose higher requirement to carrying along insulation and the conveying capacity of line pipe, restrict widely production and the modification of pitch, extended the production cycle of asphaltic products.In addition, long feed-line will increase substantially production and the maintenance cost of pitch, and the energy-saving and emission-reduction of advocating energetically with country run in the opposite direction.Packing is collecting and distributing is a kind of method of efficient, quick packing pitch, and it can make up above-mentioned pipeline insulation and the long defect apart from carrying preferably, is the method that current asphaltic products conveying generally adopts.But as its name suggests, the method requires pitch to need before use to process through container package and transport, and packaged asphalt container used must resistance to 120 DEG C of above high-temperature fillings, there is good compatibility with pitch again, stop up asphalt-spreader to ensure asphaltic products not have a large amount of residues in the time finally using simultaneously.
At present, industrial ox-hide papery and two kinds of conventional container of irony of adopting are carried out filling pitch more, but the two all can not meet instructions for use strictly speaking.Although the former is cheap, filling and convenient transportation.But it in use inevitably can remain the brown paper that a large amount of and pitch can not consolute in pitch, causes the removal of impurities processing such as pitch needs to filter before paving, and has increased operational sequence and production cost, and can cause severe contamination to environment.In addition, make for a long time pitch will greatly increase the probability of its hot oxygen explanation in the high temperature removal of impurities stage, be unfavorable for the stable of asphaltic products combination property.For container made of iron, the packaging that it is high and cost of transportation are the problem of puzzlement Ge great asphalt production manufacturer all the time, compel to be solved.
In the recent period, Some Domestic pitch and modified product company thereof successfully develop the polymer electrolyte Filling bag that can replace above-mentioned brown paper and irony packing container.This Filling bag is mainly obtained by polyolefin blowing, braiding, can meet 120 DEG C of above high-temperature filling and requirements that pave completely, and growth momentum is powerful.In addition, by the prepared Filling bag of polyolefin have light weight, inexpensive, with the complete consolute of pitch and do not affect the advantage such as bulk properties of pitch, this is also its major reason gaining great popularity.But regrettably this by single polypropylene or the prepared Filling bag of modification polyolefin material still there is seepage, with pitch consolute temperature higher (being greater than 170 DEG C), low temperature embrittlement, easy stabbingly wear, outer woven bag is soluble when not tear-resistant, bag heat seal strength is lower and heat-sealing temperature crosses high defect, cause while use and also can crack outer woven bag, and cause waste and environmental pollution.Seriously hinder popularization and the use of the type Filling bag in pitch industry.
the content of invention
The object of the invention is preparation method not enough for prior art and a kind of fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag that propose, it is characterized in that: polyolefin, modified polyolefine material and compounding ingredient are made to fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag blown film material, be fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag bag by blown film material and the blow molding of processing masterbatch employing blown film unit again, after cutting, sealing, make fusible type MULTILAYER COMPOSITE pitch Filling bag.Polyolefin, modified polyolefine material and compounding ingredient are made to the filling woven bag of meltable asphalt that fusible shaped material and processing masterbatch adopt wire drawing machine, braider (circular weaving machine), laminating machine, cutting bag machine (Bag Making Machine), printing, sewing machine, seal mechanism simultaneously.By fusible type MULTILAYER COMPOSITE pitch Filling bag bag and meltable asphalt woven bag, artificial or machinery is nested together, and obtains fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag again.
A kind of preparation method of fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag is prepared from by following three steps:
1, fusible type composite co-extruding pitch Filling bag preparation process:
(1), by polyolefin, modified polyolefine material and compounding ingredient, drop into normal temperature in blender for 50:0 ~ 50:0 ~ 100 in mass ratio and mix;
(2) the above-mentioned material mixing is made to fusible type composite co-extruding pitch Filling bag blown film material through macromolecule thermoplastic process equipment after 100 ~ 300 DEG C of moulding;
(3) more above-mentioned blown film material and processing masterbatch are dropped in corresponding each the reinforced screw rod of inflation film manufacturing machine 95 ~ 98:0 ~ 5 in mass ratio, being furnished with blow molding under the condition of layering unit at 100-300 DEG C and extruder head is the fusible type composite co-extruding pitch Filling bag bag of thickness at 20-100 μ m;
(4) above-mentioned gained bag is obtained after edge banding machine is cut out heat-sealing and pitch at the fusible type composite co-extruding pitch Filling bag of 145 DEG C of-170 DEG C of different subregions, several kinds.
2, the preparation method of meltable asphalt woven bag:
(1) polyolefin, modified polyolefine material and compounding ingredient, drops into normal temperature in blender for 50:0 ~ 50:0 ~ 100 in mass ratio and mixes;
(2) the above-mentioned material mixing is made to fusible shaped material through macromolecule thermoplastic process equipment after 100 ~ 300 DEG C of moulding;
(3) above-mentioned material and processing masterbatch are dropped in the reinforced screw rod of wire drawing machine 95 ~ 98:0 ~ 10 in mass ratio, extrude at 100-350 DEG C and extruder head, after cooling and shaping, cut into 2-10mm wide, 100-1000 of the thick book strip of 0.2-2mm silks, add hot-stretch through one or many drying-plate, make polyolefin filaments machine-direction oriented, to improve longitudinal tensile strength.Then uninterruptedly collect silk volume by winder, silk volume is placed on on circular weaving machine (braider), to weave diameter 200-5000mm cylindric, collecting into batching through winder, batching by laminating machine by after the melting of special overlay film polyolefin heating raw materials, extrude overlay film polyolefin raw material is overlayed on batching by die head, through cooling and rolling;
(4) above-mentioned gained overlay film batching is cut into the size suiting the requirements through cutting machine, after sewing machine back cover, obtains fusible type woven bag.
3, fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag preparation method:
Through artificial or mechanical, by one or more, the fusible type of similar and different thickness compound (co-extrusion) pitch Filling bag bag, packs in meltable asphalt woven bag successively; Both meet pitch hot filling (more than 120 DEG C) requirement to reach, and and DEG C different temperatures interval, asphalt heating to 145-170 in the object that mixes completely, obtain a kind of fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag of the present invention.
As preferably, described polyolefin is at least one in low density polyethylene (LDPE) (polyethylene from high pressure process), high density polyethylene (HDPE) (low-pressure polyethylene), LLDPE, ethylene-butene copolymer, ethene-hexene copolymer, ethylene-octene copolymer, HOPP, COPP;
As preferably, described modified polyolefine material is at least one in TPUE improved polyalkene, nylon elastomer improved polyalkene, polyester elastomer improved polyalkene;
As preferably, described compounding ingredient is thermoplastic polyolefin elastomer POE, EPM, ethylene propylene diene rubber (EPDM), maleic anhydride inoculated polypropylene, fill the SBS (SBS) of white oil or naphthenic oil, fill at least one in the hydrogenated styrene-butadiene-styrene block copolymers (SEBS) of white oil or naphthenic oil;
As preferably, described processing masterbatch is the melting compound of polyvinyl resin and processing aid;
Further, described processing aid is at least one in antioxidant 1010, irgasfos 168, Tissuemat E, calcium stearate, zinc stearate, EDTA-4Na, erucyl amide, nanometer titanium dioxide, pigment, ultra-violet absorber UV-360, ultra-violet absorber UV-329, ultraviolet absorbent UV-531, ultra-violet absorber UV-622;
As preferably, described macromolecule thermoplastic process equipment be mill, banbury, extruder, wire drawing machine, winder, laminating machine, painting machine, sealing machine, bag cutting machine, heat sealing machine, sewing machine, packing machine, bag support, printing machine, sealing machine air pump, water pump, cooling tower, at least one;
As preferably, the reinforced screw rod number of described inflation film manufacturing machine is 1 ~ 5, and inflation film manufacturing machine is at least one in up-draught cold type or lower blowing water cold type;
As preferably, in described inflation film manufacturing machine, the layering unit of extruder head can be divided into 1-9 layer by the polymeric fluid of melting;
the present invention has advantages of:
(1) prepared fusible type MULTILAYER COMPOSITE (co-extrusion) asphalt packaging bag of the present invention has been avoided due to the environmental pollution that uses traditional kraft compounded material and the filling pitch of iron ware to bring completely, has been reclaimed the problems such as difficulty, and economy and practicality are stronger; Meet user's energy-conserving and environment-protective requirement.
(2) the present invention developed a kind of high temperature resistant filling and completely compatible with pitch, but fusible type MULTILAYER COMPOSITE (co-extrusion) asphalt packaging bag that does not affect asphaltic nature and pave;
(3) range of choice of the present invention's fusible type MULTILAYER COMPOSITE used (co-extrusion) asphalt packaging bag blown film material and compounding ingredient is wider, cheap and easy to get, and production technology is simple, easy to use, safety non-toxic evil, non-environmental-pollution;
(4) each layer of prepared fusible type MULTILAYER COMPOSITE (co-extrusion) asphalt packaging bag of the present invention all has the advantage of self, is the multilayer composite that has good heat-sealing, heat-resisting, cold-resistant, resistance to ultraviolet, weather-proof and excellent mechanical property concurrently;
(5) designability of prepared fusible type MULTILAYER COMPOSITE (co-extrusion) asphalt packaging bag of the present invention is strong, can adjust the formula of each layer according to the actual requirements.
(6) fusible type MULTILAYER COMPOSITE pitch Filling bag meets anti-aging, uvioresistant, the product of different demands of weather-proof 180-540 days.
Brief description of the drawings
Fig. 1 is the Fourier transform infrared spectroscopy figure of three layers of compound meltable asphalt Filling bag;
Fig. 2 is the differential scanning calorimetric thermogram of three layers of compound meltable asphalt Filling bag;
Fig. 3 is the scanning electron microscope diagram (multiplication factor: (a) 20 000 on five layers of compound meltable asphalt Filling bag top layer; (b) 40 000).
Detailed description of the invention
Referring to accompanying drawing, technical scheme of the present invention is described in further detail.
A kind of preparation method of fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag, it is characterized in that: polyolefin, modified polyolefine material and compounding ingredient are made to fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag blown film material, be fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag bag by blown film material and the blow molding of processing masterbatch employing blown film unit again, after cutting, sealing, make fusible type MULTILAYER COMPOSITE pitch Filling bag.Polyolefin, modified polyolefine material and compounding ingredient are made to the filling woven bag of meltable asphalt that fusible shaped material and processing masterbatch adopt wire drawing machine, braider (circular weaving machine), laminating machine, cutting bag machine (Bag Making Machine), printing, sewing machine, seal mechanism simultaneously.By fusible type MULTILAYER COMPOSITE pitch Filling bag bag and meltable asphalt woven bag, artificial or machinery is nested together, and obtains fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag again.
A kind of preparation method of fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag is prepared from by following three steps:
1, fusible type composite co-extruding pitch Filling bag preparation process:
(1), by polyolefin, modified polyolefine material and compounding ingredient, drop into normal temperature in blender for 50:0 ~ 50:0 ~ 100 in mass ratio and mix;
(2) the above-mentioned material mixing is made to fusible type composite co-extruding pitch Filling bag blown film material through macromolecule thermoplastic process equipment after 100 ~ 300 DEG C of moulding;
(3) more above-mentioned blown film material and processing masterbatch are dropped in corresponding each the reinforced screw rod of inflation film manufacturing machine 95 ~ 98:0 ~ 5 in mass ratio, being furnished with blow molding under the condition of layering unit at 100-300 DEG C and extruder head is the fusible type composite co-extruding pitch Filling bag bag of thickness at 20-100 μ m;
(4) above-mentioned gained bag is obtained after edge banding machine is cut out heat-sealing and pitch at the fusible type composite co-extruding pitch Filling bag of 145 DEG C of-170 DEG C of different subregions, several kinds.
2, the preparation method of meltable asphalt woven bag:
(1) polyolefin, modified polyolefine material and compounding ingredient, drops into normal temperature in blender for 50:0 ~ 50:0 ~ 100 in mass ratio and mixes;
(2) the above-mentioned material mixing is made to fusible shaped material through macromolecule thermoplastic process equipment after 100 ~ 300 DEG C of moulding;
(3) above-mentioned material and processing masterbatch are dropped in the reinforced screw rod of wire drawing machine 95 ~ 98:0 ~ 10 in mass ratio, extrude at 100-350 DEG C and extruder head, after cooling and shaping, cut into 2-10mm wide, 100-1000 of the thick book strip of 0.2-2mm silks, add hot-stretch through one or many drying-plate, make polyolefin filaments machine-direction oriented, to improve longitudinal tensile strength.Then uninterruptedly collect silk volume by winder, silk volume is placed on on circular weaving machine (braider), to weave diameter 200-5000mm cylindric, collecting into batching through winder, batching by laminating machine by after the melting of special overlay film polyolefin heating raw materials, extrude overlay film polyolefin raw material is overlayed on batching by die head, through cooling and rolling;
(4) above-mentioned gained overlay film batching is cut into the size suiting the requirements through cutting machine, after sewing machine back cover, obtains fusible type woven bag.
3, fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag preparation method:
Through artificial or mechanical, by one or more, the fusible type of similar and different thickness compound (co-extrusion) pitch Filling bag bag, packs in meltable asphalt woven bag successively; Both meet pitch hot filling (more than 120 DEG C) requirement to reach, and and DEG C different temperatures interval, asphalt heating to 145-170 in the object that mixes completely, obtain a kind of fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag of the present invention.
As preferably, described polyolefin is at least one in low density polyethylene (LDPE) (polyethylene from high pressure process), high density polyethylene (HDPE) (low-pressure polyethylene), LLDPE, ethylene-butene copolymer, ethene-hexene copolymer, ethylene-octene copolymer, HOPP, COPP;
As preferably, described modified polyolefine material is at least one in TPUE improved polyalkene, nylon elastomer improved polyalkene, polyester elastomer improved polyalkene;
As preferably, described compounding ingredient is thermoplastic polyolefin elastomer POE, EPM, ethylene propylene diene rubber (EPDM), maleic anhydride inoculated polypropylene, fill the SBS (SBS) of white oil or naphthenic oil, fill at least one in the hydrogenated styrene-butadiene-styrene block copolymers (SEBS) of white oil or naphthenic oil;
As preferably, described processing masterbatch is the melting compound of polyvinyl resin and processing aid;
Further, described processing aid is at least one in antioxidant 1010, irgasfos 168, Tissuemat E, calcium stearate, zinc stearate, EDTA-4Na, erucyl amide, nanometer titanium dioxide, pigment, ultra-violet absorber UV-360, ultra-violet absorber UV-329, ultraviolet absorbent UV-531, ultra-violet absorber UV-622;
As preferably, described macromolecule thermoplastic process equipment be mill, banbury, extruder, wire drawing machine, winder, laminating machine, painting machine, sealing machine, bag cutting machine, heat sealing machine, sewing machine, packing machine, bag support, printing machine, sealing machine air pump, water pump, cooling tower, at least one;
As preferably, the reinforced screw rod number of described inflation film manufacturing machine is 1 ~ 5, and inflation film manufacturing machine is at least one in up-draught cold type or lower blowing water cold type;
As preferably, in described inflation film manufacturing machine, the layering unit of extruder head can be divided into 1-9 layer by the polymeric fluid of melting;
Embodiment 1
Accurately weigh 3500g polypropylene, 1000g EU and 500gEVA, normal temperature mixes the rear polyurethane-modified PP GRANULES A that makes under 190 DEG C of conditions with dual-screw pelletizer; Accurately weigh 4200 g polypropylene, 400g high density polyethylene (HDPE) and 400gEPDM, normal temperature mixes the rear EPDM modified polypropylene particles B that makes under 190 DEG C of conditions with dual-screw pelletizer;
Take 2500g polypropylene, the polyurethane-modified PP GRANULES A of 2500g and 250g processing masterbatch, after normal temperature mixes, add feeding cylinder 1;
Take 2500g polypropylene, 2500gEPDM modified polypropylene particles B and 250g processing masterbatch, after normal temperature mixes, add feeding cylinder 2; Composite material in barrel 1 and barrel 2 is fitted with and polymeric fluid can be divided into two-layer layering unit through screw rod 1(head) and screw rod 2(be unkitted layering unit) carry and inflation film manufacturing machine blown film after to make sandwich layer be EPDM modified polypropene and ectonexine is polyurethane-modified polyacrylic three layers of composite asphalt Filling bag bag, above-mentioned bag is obtained to three layers of composite asphalt Filling bag of fusible type after edge banding machine is cut out heat-sealing.
Embodiment 2
Accurately weigh 3500g polypropylene, 1000g polyether-type acid amides elastomer 500gEVA, normal temperature mixes the rear polyamide modified PP GRANULES A that makes under 200 DEG C of conditions with dual-screw pelletizer; Accurately weigh 4000 g polypropylene, 500g high density polyethylene (HDPE) and 500gEPDM, normal temperature mixes the rear EPDM modified polypropylene particles B that makes under 200 DEG C of conditions with dual-screw pelletizer; Accurately weigh 4000 g polypropylene, 500g LLDPE and 500gPOE elastomer, normal temperature mixes the rear POE modified polypropylene particles C that makes under 200 DEG C of conditions with dual-screw pelletizer; Take 2500g polypropylene, the polyamide modified PP GRANULES A of 2500g and 250g processing masterbatch, after normal temperature mixes, add feeding cylinder 1; Take 3000g polypropylene, 2000gEPDM modified polypropylene particles B and 250g processing masterbatch, after normal temperature mixes, add feeding cylinder 2; Take 3000g polypropylene, 2000gPOE modified polypropylene particles C and 250g processing masterbatch, after normal temperature mixes, add feeding cylinder 3; Composite material in barrel 1,2 and 3 is fitted with and polymeric fluid can be divided into two-layer layering unit through screw rod 1(head), screw rod 2(is unkitted layering unit) and screw rod 3(be unkitted layering unit) carry and inflation film manufacturing machine blown film after to make outer be POE modified polypropene, internal layer and inferior skin are polyamide modified polypropylene, inferior internal layer is four layers of composite asphalt Filling bag bag of EPDM modified polypropene, and above-mentioned bag is obtained to four layers of composite asphalt Filling bag of fusible type after edge banding machine is cut out heat-sealing.
Embodiment 3
Accurately weigh 3000g polypropylene, 1500g polyester elastomer and 500gEVA, normal temperature mixes the rear polyester modification PP GRANULES A that makes under 210 DEG C of conditions with dual-screw pelletizer; Accurately weigh 4000 g polypropylene, 500g high density polyethylene (HDPE) and 500gEPDM, normal temperature mixes the rear EPDM modified polypropylene particles B that makes under 190 DEG C of conditions with dual-screw pelletizer; Accurately weigh 4000 g polypropylene, 500g PAUR elastomer and 500g maleic anhydride graft PP, normal temperature mixes the rear polyurethane-modified PP GRANULES C that makes under 1900 DEG C of conditions with dual-screw pelletizer; Take 4000g polypropylene, 1000g polyester modification PP GRANULES A and 250g processing masterbatch, after normal temperature mixes, add feeding cylinder 1; Take 4000g polypropylene, 1000gEPDM modified polypropylene particles B and 250g processing masterbatch, after normal temperature mixes, add feeding cylinder 2; Take 4000g polypropylene, 1000g PAUR modified polypropylene particles C and 250g processing masterbatch, after normal temperature mixes, add feeding cylinder 3; Composite material in barrel 1,2 and 3 is unkitted to layering unit through screw rod 1(), screw rod 2(head is fitted with and polymeric fluid can be divided into the layering unit of four layers) and screw rod 3(head be fitted with polymeric fluid can be divided into the layering unit of four layers) carry and inflation film manufacturing machine blown film after to make intermediate layer be polyester modification polypropylene, all the other are 9 layers of composite asphalt Filling bag bag of PAUR modified polypropene and EPDM modified polypropene interleaved, and above-mentioned bag is obtained to nine layers of composite asphalt Filling bag of fusible type after edge banding machine is cut out heat-sealing.
Claims (9)
1. the preparation method of a fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag, it is characterized in that: polyolefin, modified polyolefine material and compounding ingredient are made to fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag blown film material, be fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag bag by blown film material and the blow molding of processing masterbatch employing blown film unit again, after cutting, sealing, make fusible type MULTILAYER COMPOSITE pitch Filling bag; Polyolefin, modified polyolefine material and compounding ingredient are made to the filling woven bag of meltable asphalt that fusible shaped material and processing masterbatch adopt wire drawing machine, braider (circular weaving machine), laminating machine, cutting bag machine (Bag Making Machine), printing, sewing machine, seal mechanism simultaneously; By fusible type MULTILAYER COMPOSITE pitch Filling bag bag and meltable asphalt woven bag, artificial or machinery is nested together, and obtains fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag again.
2. the preparation method of a kind of fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag according to claim 1, is characterized in that: be to be prepared from by following three steps:
[1], fusible type composite co-extruding pitch Filling bag preparation process:
(1), by polyolefin, modified polyolefine material and compounding ingredient, drop into normal temperature in blender for 50:0 ~ 50:0 ~ 100 in mass ratio and mix;
(2) the above-mentioned material mixing is made to fusible type composite co-extruding pitch Filling bag blown film material through macromolecule thermoplastic process equipment after 100 ~ 300 DEG C of moulding;
(3) more above-mentioned blown film material and processing masterbatch are dropped in corresponding each the reinforced screw rod of inflation film manufacturing machine 95 ~ 98:0 ~ 5 in mass ratio, being furnished with blow molding under the condition of layering unit at 100-300 DEG C and extruder head is the fusible type composite co-extruding pitch Filling bag bag of thickness at 20-100 μ m;
(4) above-mentioned gained bag is obtained after edge banding machine is cut out heat-sealing and pitch at the fusible type composite co-extruding pitch Filling bag of 145 DEG C of-170 DEG C of different subregions, several kinds;
[2], the preparation method of meltable asphalt woven bag:
(1) polyolefin, modified polyolefine material and compounding ingredient, drops into normal temperature in blender for 50:0 ~ 50:0 ~ 100 in mass ratio and mixes;
(2) the above-mentioned material mixing is made to fusible shaped material through macromolecule thermoplastic process equipment after 100 ~ 300 DEG C of moulding;
(3) above-mentioned material and processing masterbatch are dropped in the reinforced screw rod of wire drawing machine 95 ~ 98:0 ~ 10 in mass ratio, extrude at 100-350 DEG C and extruder head, after cooling and shaping, cut into 2-10mm wide, 100-1000 of the thick book strip of 0.2-2mm silks, add hot-stretch through one or many drying-plate, make polyolefin filaments machine-direction oriented, to improve longitudinal tensile strength, then uninterruptedly collect silk volume by winder, silk volume is placed on on circular weaving machine (braider), to weave diameter 200-5000mm cylindric, collecting into batching through winder, batching by laminating machine by after the melting of special overlay film polyolefin heating raw materials, extrude overlay film polyolefin raw material is overlayed on batching by die head, through cooling and rolling,
(4) above-mentioned gained overlay film batching is cut into the size suiting the requirements through cutting machine, after sewing machine back cover, obtains fusible type woven bag;
[3], fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag preparation method:
Through artificial or mechanical, by one or more, the fusible type of similar and different thickness compound (co-extrusion) pitch Filling bag bag, packs in meltable asphalt woven bag successively; Both meet pitch hot filling (more than 120 DEG C) requirement to reach, and and DEG C different temperatures interval, asphalt heating to 145-170 in the object that mixes completely, obtain a kind of fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag of the present invention.
3. according to the preparation method of a kind of fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag described in claim 1 or 2 any one, it is characterized in that: described polyolefin is at least one in low density polyethylene (LDPE) (polyethylene from high pressure process), high density polyethylene (HDPE) (low-pressure polyethylene), LLDPE, ethylene-butene copolymer, ethene-hexene copolymer, ethylene-octene copolymer, HOPP, COPP.
4. according to the preparation method of a kind of fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag described in claim 1 or 2 any one, it is characterized in that: described modified polyolefine material is at least one in TPUE improved polyalkene, nylon elastomer improved polyalkene, polyester elastomer improved polyalkene.
5. according to the preparation method of a kind of fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag described in claim 1 or 2 any one, it is characterized in that: described compounding ingredient is thermoplastic polyolefin elastomer POE, EPM, ethylene propylene diene rubber (EPDM), maleic anhydride inoculated polypropylene, fill the SBS (SBS) of white oil or naphthenic oil, fill at least one in the hydrogenated styrene-butadiene-styrene block copolymers (SEBS) of white oil or naphthenic oil.
6. according to the preparation method of a kind of fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag described in claim 1 or 2 any one, it is characterized in that: described processing masterbatch is the melting compound of polyvinyl resin and processing aid;
Further, described processing aid is at least one in antioxidant 1010, irgasfos 168, Tissuemat E, calcium stearate, zinc stearate, EDTA-4Na, erucyl amide, nanometer titanium dioxide, pigment, ultra-violet absorber UV-360, ultra-violet absorber UV-329, ultraviolet absorbent UV-531, ultra-violet absorber UV-622.
7. according to the preparation method of a kind of fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag described in claim 1 or 2 any one, it is characterized in that: described macromolecule thermoplastic process equipment be mill, banbury, extruder, wire drawing machine, winder, laminating machine, painting machine, sealing machine, bag cutting machine, heat sealing machine, sewing machine, packing machine, bag support, printing machine, sealing machine air pump, water pump, cooling tower, at least one.
8. according to the preparation method of a kind of fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag described in claim 1 or 2 any one, it is characterized in that: the reinforced screw rod number of described inflation film manufacturing machine is 1 ~ 5, inflation film manufacturing machine is at least one in up-draught cold type or lower blowing water cold type.
9. according to the preparation method of a kind of fusible type MULTILAYER COMPOSITE co-extrusion pitch Filling bag described in claim 1 or 2 any one, it is characterized in that: in described inflation film manufacturing machine, the layering unit of extruder head can be divided into 1-9 layer by the polymeric fluid of melting.
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| CN201410329841.7A CN104149370A (en) | 2014-07-11 | 2014-07-11 | Method for preparing fusible multilayer composite co-extrusion asphalt filling bags |
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| CN201410329841.7A CN104149370A (en) | 2014-07-11 | 2014-07-11 | Method for preparing fusible multilayer composite co-extrusion asphalt filling bags |
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| CN201410329841.7A Pending CN104149370A (en) | 2014-07-11 | 2014-07-11 | Method for preparing fusible multilayer composite co-extrusion asphalt filling bags |
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| CN (1) | CN104149370A (en) |
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| CN110157100A (en) * | 2019-06-13 | 2019-08-23 | 青岛波斯霖科技有限公司 | A kind of Polywoven Bag and preparation method thereof that can be used for packing by nuclear accident contaminated soil |
| CN110409610A (en) * | 2019-08-01 | 2019-11-05 | 河北昊瑞坤数字科技有限公司 | A kind of filling structure of multilayer of 3D printing different materials |
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| CN110157100A (en) * | 2019-06-13 | 2019-08-23 | 青岛波斯霖科技有限公司 | A kind of Polywoven Bag and preparation method thereof that can be used for packing by nuclear accident contaminated soil |
| CN110409610A (en) * | 2019-08-01 | 2019-11-05 | 河北昊瑞坤数字科技有限公司 | A kind of filling structure of multilayer of 3D printing different materials |
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Application publication date: 20141119 |