CN101746547B - Modified asphalt wrapping film bag and preparation method thereof - Google Patents
Modified asphalt wrapping film bag and preparation method thereof Download PDFInfo
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- CN101746547B CN101746547B CN2008102389767A CN200810238976A CN101746547B CN 101746547 B CN101746547 B CN 101746547B CN 2008102389767 A CN2008102389767 A CN 2008102389767A CN 200810238976 A CN200810238976 A CN 200810238976A CN 101746547 B CN101746547 B CN 101746547B
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- 239000010426 asphalt Substances 0.000 title claims abstract description 77
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 229920003023 plastic Polymers 0.000 claims abstract description 23
- 239000004033 plastic Substances 0.000 claims abstract description 23
- 229920001971 elastomer Polymers 0.000 claims abstract description 22
- 239000005060 rubber Substances 0.000 claims abstract description 22
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 17
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 16
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 15
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 14
- 239000000314 lubricant Substances 0.000 claims abstract description 12
- 229920000098 polyolefin Polymers 0.000 claims abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 5
- 238000005469 granulation Methods 0.000 claims abstract description 4
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- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 3
- 150000001412 amines Chemical class 0.000 claims abstract description 3
- 238000007664 blowing Methods 0.000 claims abstract description 3
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims abstract description 3
- 239000008116 calcium stearate Substances 0.000 claims abstract description 3
- 235000013539 calcium stearate Nutrition 0.000 claims abstract description 3
- 239000006229 carbon black Substances 0.000 claims abstract description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 3
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 3
- 239000008117 stearic acid Substances 0.000 claims abstract description 3
- -1 polypropylene Polymers 0.000 claims description 40
- 239000004743 Polypropylene Substances 0.000 claims description 34
- 229920001155 polypropylene Polymers 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 16
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 16
- 239000004698 Polyethylene Substances 0.000 claims description 14
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 14
- 238000012856 packing Methods 0.000 claims description 14
- 229920000573 polyethylene Polymers 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 10
- 229920001903 high density polyethylene Polymers 0.000 claims description 10
- 239000004700 high-density polyethylene Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 9
- 229920002943 EPDM rubber Polymers 0.000 claims description 7
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 6
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 4
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- 229920005606 polypropylene copolymer Polymers 0.000 claims description 4
- 238000011049 filling Methods 0.000 claims description 3
- 239000008188 pellet Substances 0.000 claims description 3
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 3
- 239000000454 talc Substances 0.000 claims description 3
- 229910052623 talc Inorganic materials 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 239000000178 monomer Substances 0.000 claims description 2
- 239000002530 phenolic antioxidant Substances 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims description 2
- 229920001684 low density polyethylene Polymers 0.000 claims 2
- 239000004702 low-density polyethylene Substances 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 abstract 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 description 19
- 238000012360 testing method Methods 0.000 description 11
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- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 6
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a modified asphalt wrapping film bag and a preparation method thereof. The main agent is composed of the following components in the percentage by weight: 55-85% of plastic, 3-25% of rubber and 5-20% of property reinforcing agent; auxiliary agent is composed of lubricant accounting for 0.3-3.0 wt% of main agent and antioxidant accounting for 0.05-1.0 wt% of main agent; property reinforcing agent is polyolefin filled master batch which takes polyolefin as a carrier and takes talcum powder, silicon dioxide or carbon black as a filled master batch; the lubricant is paraffin, stearic acid or calcium stearate; the antioxidant is phenol or amine antioxidant. The preparation method is as follow: at the temperature of 170-220 DEG C, performing mixed granulation; extrudingand blowing film at the temperature of 170-210 DEG C to blow a film with the thickness of 0.06-0.08 mm, wherein heat-resistance temperature is 165 DEG C; when being filled modified asphalt at the temperature of 155-160 DEG C, the modified asphalt wrapping film bag can not be damaged or broken and can be mixed with modified asphalt at the temperature of 180 DEG C, and the preparation method has the characteristics of convenient operation and no environment pollution.
Description
Technical field
The present invention relates to a kind of asphalt packages bag film and preparation method thereof, more particularly, relate to a kind of modified asphalt wrapping film bag and preparation method thereof.
Background technology
Ordinary road asphalt packages mode mainly contains insulation tank car (gasoline container or refining jar), metal bucket, high polymer product flexible packaging.Because insulation tank car transportation energy consumption is big, the area that has inconvenient traffic is difficult to adopt this method transportation, in addition, the pitch in the tank car is local heating repeatedly, and asphalt quality is also had a negative impact.Metal bucket packing cost height, it is many to take up space, and when using pitch, need with drying room or special-purpose dumping equipment, and asphalt adhesive causes waste big on the bucket wall.The flexible packaging cracky, pitch easy to leak under the hot environment, during use and pitch peel off difficulty, contaminated environment, and the pitch wastage is big.
Along with the improvement of packing technique, ordinary road pitch has extensively been adopted the soft package of pitch mode both at home and abroad, the packed in flexible pouchy that employing can be compatible with pitch can solve pitch or packing waste and transportation burden problem preferably.Used flexible packing material mainly contains polyolefin plastics and compound papery two classes.Disclosing a kind of as US 5452800 is to be the building asphalt packaging bag of material manufacture with the polypropylene, pitch can temperature is 135 ℃~154 ℃, but the intermiscibility that with the virgin pp is the packing material of material preparation and pitch is poor, easily reunite and swim in the pitch top of fusion, do building asphalt when construction, take artificial method of salvaging because of the consumption I and remove, but when making road bitumen and using, then can influence production operation because of measuring the untimely obstruction that causes pipeline and valve of big salvaging; The disclosed building asphalt coated paper envelope of CN2136814, then adopting gluing diaphragm to strengthen the knitmesh muscle occupies in the middle of two craft papeies, and in bag the coated organic film of paper, make it not adhere to hot and cold pitch, this extrusion coating paper packaging bag can be packed the pitch of softening point 〉=60 ℃, but packing cost height can not be recycled contaminated environment.The Pakcage material for road pitch that CN1126141, CN1135404, CN1132222, CN1566197, CN1844223 provide is polyolefin plastics or hard paper strata propylene nylon plastic alloy, but its can asphalt temperature is lower, 120 ℃~146 ℃ can be reached, the requirement of plain asphalt Canning Technique can only be satisfied; CN1771295 discloses the packing of being made by packing and asphalt material and a kind of metallics.Because packaging bag contains asphalt material, reduced the intensity of packing film, make packing film damaged easily; And, usually the road bitumen softening point is between 42~55 ℃, differ bigger with other plastic product processing temperature, in the packing container course of processing, can increase operation easier, and, in high temperature process, also can discharge deletrious bitumen flue gas because the pitch self-characteristic can pollute Fabricating machinery, serious environment pollution is detrimental to health.
The disclosed soft packaging bag of above-mentioned patent documentation can only be used for can ordinary road pitch or building asphalt, because modified bitumen viscosity under 120 ℃~146 ℃ can range of temperaturess is still bigger, causes filling speed slow, time-consuming length.If improve the can temperature, then easily softening, easy the scalding of employing road soft packaging bag decreased, and in storage or the transportation disrepair phenomenon takes place easily also, therefore, the manner of packing that present modified bitumen is adopted still is metal bucket or two kinds of modes of tank car, does not realize modified bitumen flexible packaging mode.
Summary of the invention
The purpose of this invention is to provide a kind of film packaging bag that satisfies the requirement of modified bitumen Canning Technique and preparation method thereof, its under 155 ℃~160 ℃ high temperature during can pitch, softening, broken bag not; Can melt at 180 ℃, good with the compatibility of pitch, and fusion the modified bitumen of packaging bag still satisfy the requirement of JTGF40 polymer modified asphalt product engineering.
The plastics that the present invention selects to suit are the packaging bag body material, and the compound rubber polymer that improves performances such as plastics toughness, intensity and processability is prepared the modified asphalt wrapping film bag that can satisfy modified bitumen can, accumulating and operating needs.
One of technical scheme of the present invention provides a kind of asphalt packages bag film product, and this products material is made up of host and auxiliary agent: host is made up of plastics 55~85%, rubber 3~25%, performance reinforcing agent 5~20% by weight percentage; Auxiliary agent is made up of the antioxidant of the lubricant that accounts for host weight 0.3~3.0% and 0.05~1.0%.
During described asphalt packages bag film products material was formed, host was made up of plastics 60~82%, rubber 5~25%, performance reinforcing agent 8~20% by weight percentage; Auxiliary agent is made up of the antioxidant of the lubricant that accounts for host weight 0.3~2.0% and 0.05~1.0%.
Plastics in the described host are the copolymers that are selected from one or more monomers in ethene, propylene, the vinyl acetate, promptly polypropylene or ethylene-vinyl acetate copolymer EVA and polypropylene the two compound or polyethylene and polypropylene the two compound or polyethylene, polypropylene and ethylene-vinyl acetate copolymer EVA three's compound.Wherein polypropylene is that melt flow rate is that extrude flat filament grade polypropylene or the melt flow rate of 1.4g/10min~8.4g/10min is in 5.7g/10min~13g/10min film-grade polypropylene one or more; Polyethylene is that melt flow rate is high density polyethylene (HDPE) or the linear low density polyethylene (LLDPE) of 0.2g/10min~2g/10min; Vinyl acetate content is 5~30 weight % among the ethylene-vinyl acetate copolymer EVA; In 55~85% the plastics, polypropylene content is 75~100 weight %, and ethylene-vinyl acetate copolymer EVA content is 0~15 weight %, polyethylene 0~10 weight %.
Rubber in the described host is to be selected from EPM, the ethylene propylene diene rubber one or more, or in the EPM, ethylene propylene diene rubber one or more rubber and the compound of s-B-S SBS thermoplastic rubber, wherein, the ratio of s-B-S SBS thermoplastic rubber in rubber composition is 0~50 weight %.Described EPM, ethylene propylene diene rubber are mean molecular weight 200,000~400,000, and Mooney viscosity value [100 ℃ of ML (1+4)] is 25~80 EP rubbers product; The block that SBS modifier adopts styrene and butadidenne is 100,000~300,000 star-like or linear polymer than the mol wt that is 20~45:80~55, obtains by polymerization reaction.
Performance reinforcing agent in the described host can guarantee that modifier asphalt packages bag film has higher mechanical strength, and the cost to asphalt packaging bag plays the reduction effect simultaneously.It is carrier that this performance reinforcing agent is selected for use with the polyolefin, by inorganic fillers such as french talc, silicon dioxide or carbon blacks is the polyolefin packing material that filling master batch is made, polyolefin is polyethylene or polypropylene, wherein, polyethylene is that melt flow rate is high density polyethylene (HDPE) or the linear low density polyethylene (LLDPE) of 0.2g/10min~2g/10min; Polypropylene is that melt flow rate is that extrude flat filament class polypropylene or the melt flow rate of 1.4g/10min~8.4g/10min is in 5.7g/10min~13g/10min blown film class polypropylene one or more.
Lubricant in the described auxiliary agent is paraffin, stearic acid or calcium stearate, and the adding of lubricant can improve the processing of plastic flowing power, improves the compatibility between the material.
Antioxidant in the described auxiliary agent is conventional phenolic antioxidant or amine antioxidants, and it is an antioxidant 1010,1076,1024,1098,4, any in 4-two (a, a-3,5-dimethylphenyl) diphenylamine or the styrenated diphenylamine.
Two of technical scheme of the present invention provides the preparation method of above-mentioned modified asphalt wrapping film bag:
Will be by weight percentage by plastics 55~85%, rubber 3~25%, host that performance reinforcing agent 5~20% is formed and lubricant by host weight 0.3~3.0%, after the auxiliary agent that the antioxidant of host weight 0.05~1.0% is formed mixes, drop into multiple screw extruder or plasticator melt blending equipment, mixing granulation under 170~220 ℃ of temperature, be 170~210 ℃ conditions under to extrude blown film by conventional blown film unit in temperature with pellet then, blowing out film thickness is 0.06~0.08mm, satisfy QB1956 polypropylene blown film physical and mechanical properties technical requirement fully, make modified asphalt wrapping film bag after the film envelope is cut.And under 155 ℃ high temperature the can modified bitumen, softening, broken bag not.
When modified bitumen uses, pitch is dropped in 180 ℃ of pitch bays together with packaging bag, slowly stirred 10 minutes, bag film can with the modified bitumen complete miscibility, mixing the modified bitumen of film packaging bag compare with former modified bitumen product key index, be no more than 5% according to the penetration degree variation under 25 ℃ of conditions of GB/T 4509 methods test, GB/T 4507 test softening points variations are no more than 3%, GB/T 4508 test ductilities variations are no more than 10%, and SH/T 0737 testing elastic recovers to change and is no more than 3%.
Extruding machine is commercially available single multiple screw extruder or Bitruder, the rotating speed of this equipment and feed rate by productive capacity size determine that the productive capacity size can fully mix with material and be as the criterion.
Compared with prior art, the invention has the advantages that:
(1) the present invention adopts rubber and performance reinforcing agent that polyolefin plastics is carried out blending and modifying, through simply extruding and the blown film operation, just can finish the preparation process of making the asphalt packages bag film by the common plastics Fabricating machinery.
(2) because modified bitumen softening point height, viscosity is big, usually 155 ℃~more than 160 ℃ the time, technical requirements when the viscosity of modified bitumen and flowing power could satisfy can, if continue to use the can temperature of ordinary road pitch, will cause modified bitumen can difficulty or can efficient low, this just needs the high soft package of pitch material of heat resistance.Asphalt packages bag film provided by the invention, removing increases a certain amount of polypropylene, also increase an amount of rubber and performance reinforcing agent, not only strengthened the heat resistance of film packaging bag, also improved the mechanics shock resistance, made the film packaging bag heat resisting temperature can reach 165 ℃, can be under 155 ℃~160 ℃ high temperature the can modified bitumen, scald not decrease, broken bag not, it is low to have solved present packaging bag can temperature, has satisfied the technical requirements of modified bitumen can.
(3) modified asphalt wrapping film bag made of the present invention, under 180 ℃ can with the modified bitumen consolute, the give out a contract for a project modified bitumen product of pack of fusion still satisfies JTGF40 modified bitumen product standard-required, it is convenient to have constructing operation, do not produce the three wastes, the characteristics of environmentally safe.
(4) add the performance reinforcing agent in preparation process, guarantee that modifier asphalt packages bag film has higher mechanical strength, satisfy the requirement of production, accumulating and use, simultaneously, this reinforcing agent is cheap, has reduced the material cost of asphalt packaging bag.
The specific embodiment
Further illustrate implementation of the present invention and characteristics below in conjunction with embodiment, but the present invention is not subjected to the restriction of following embodiment, can determines concrete embodiment according to technical scheme of the present invention and actual conditions.
Employed raw material is the production of Kelamayi, Xinjiang petro-chemical corporation among the embodiment.Polypropylene PP is: extrude flat filament grade polypropylene F401, F501, F601, biaxially oriented film polypropylene F680H, small-entity polypropylene powder; Polythene PE is: high density polyethylene (HDPE) 6200B, linear low density polyethylene (LLDPE) LL0209; Ethylene-vinyl acetate copolymer EVA:3014,310; EP rubbers is: EPM EPM707, EPM785, ethylene propylene diene rubber EPDM5014,5015,5017 rubber grains; S-B-S SBS thermoplastic rubber is: YH788, YH791, YH796; Antioxidant is Hinered phenols antioxidant 1010,1076,1024,1098,4,4 '-two (a, a-3,5-dimethylphenyl) diphenylamine SG-R405, styrenated diphenylamine SG-R601.
The SJ65 series blown film unit that the blown film unit adopts Beijing Ying Te plastics machinery head factory to produce.
The raw material of following examples 1~28 is formed all by weight percentage, and auxiliary agent is by host weight.
Embodiment 1
Host: plastics 65%+EPM707 rubber 25%+ performance reinforcing agent french talc polypropylene masterbatch 10%
Auxiliary agent: lubricant paraffin 0.3%+1010 antioxidant 0.1%
In the above-mentioned host plastics, polypropylene F401 content is 80% weight, and EVA3014 content is 10% weight, and polyethylene 6200B is 10% weight.
After above-mentioned raw materials mixed by weight proportion, drop into Bitruder, mixing granulation under 170~200 ℃ of conditions, then pellet being adopted SJ65 blown film unit is to extrude blown film under 180~200 ℃ in temperature, blow out the film that film thickness is 0.07mm, physical and mechanical properties according to GB 13022, QB/T 1130 these films of test, the vertical, horizontal pulling strengrth is 35.3/32.6MPa, the vertical, horizontal breaking elongation is 755/662%, and the vertical, horizontal angle tear strength is 118/122N/mm.After cutting, the film envelope makes modified asphalt wrapping film bag.This asphalt film bag can satisfy can modified bitumen under 155 ℃ high temperature, softening, broken bag not.When modified bitumen uses, pitch is dropped in 180 ℃ of pitch bays together with packaging bag, slowly stirred 10 minutes, bag film can with the modified bitumen complete miscibility, the modified bitumen of mixing packaging bag is tested with the protobitumen performance comparison, the results are shown in Table 1.
Table 1 modified bitumen sample test result
Project | Modified bitumen (I-C) index of quality | Clean pitch | The band packaged asphalt | Test method |
Penetration degree (25 ℃, 100g, 5s) 0.1mm | 60-80 | 74 | 76/ rate of change 2.7% | GB/T4509 |
Softening point, ℃ | >55 | 58.6 | 58.1/ rate of change 0.8% | GB/T4507 |
5 ℃ of ductilities, (5cm/min) cm | >30 | 58 | 56/ rate of change 3.4% | GB/T4508 |
Recovery of elasticity, (25 ℃) % | >65 | 76 | 75/ rate of change 1.3% | SH/T0737 |
Can see by last table, mixing the modified bitumen of film packaging bag compare with former modified bitumen product key index, be changed to 2.7% according to the penetration degree under 25 ℃ of conditions of GB/T 4509 methods test, GB/T 4507 test softening points are changed to 0.8%, GB/T 4508 test ductilities are changed to 3.4%, SH/T 0737 testing elastic recovers to be changed to 1.3%, and the asphalt performance of band packaging bag can satisfy the product quality indicator requirement fully.
Embodiment 2~28 processs of the test are with embodiment 1, and each embodiment component, technological condition and product property see Table 2~table 10 respectively.
Table 2 feed composition, technological condition and product property
Table 3 raw produce, technological condition and product property
Table 4 raw produce, technological condition and product property
Table 5 raw produce, technological condition and product property
Table 6 raw produce, technological condition and product property
Table 7 raw produce, technological condition and product property
Table 8 raw produce, technological condition and product property
Table 9 raw produce, technological condition and product property
Table 10 raw produce, technological condition and product property
Claims (8)
1. asphalt packages bag film, it is characterized in that: asphalt packages bag film raw material is made up of host and auxiliary agent: host is made up of plastics 55~85%, rubber 3~25% and performance reinforcing agent 5~20% by weight percentage; Auxiliary agent is made up of lubricant that accounts for host weight 0.3~3.0% and the antioxidant that accounts for host weight 0.05~1.0%;
Described performance reinforcing agent is to be carrier with the polyolefin, is the polyolefin packing material that filling master batch is made by french talc, silicon dioxide or carbon black;
Described lubricant is paraffin, stearic acid or calcium stearate;
Described antioxidant is phenolic antioxidant or amine antioxidants.
2. according to the described asphalt packages bag film of claim 1, it is characterized in that: described asphalt packages bag film product is made up of host and auxiliary agent raw material, and host is made up of plastics 60~82%, rubber 5~25%, performance reinforcing agent 8~20% by weight percentage; Auxiliary agent is made up of lubricant that accounts for host weight 0.3~2.0% and the antioxidant that accounts for host weight 0.05~1.0%.
3. according to claim 1 or 2 described asphalt packages bag films, it is characterized in that: described plastics are the copolymers that are selected from one or more monomers in ethene, propylene, the vinyl acetate, promptly polypropylene or ethylene-vinyl acetate copolymer and polypropylene the two compound or polyethylene and polypropylene the two compound or polyethylene, polypropylene and ethylene-vinyl acetate copolymer three's compound.
4. according to the described asphalt packages bag film of claim 3, it is characterized in that: described wherein polypropylene is that melt flow rate is that extrude flat filament grade polypropylene or the melt flow rate of 1.4g/10min~8.4g/10min is in 5.7g/10min~13g/10min film-grade polypropylene one or more; Polyethylene is that melt flow rate is high density polyethylene (HDPE) or the linear low density polyethylene (LLDPE) of 0.2g/10min~2g/10min; Vinyl acetate content is 5~30 weight % in the ethylene-vinyl acetate copolymer; In 55~85% the plastics, polypropylene content is 75~100 weight %, and ethylene-vinyl acetate copolymer content is 0~15 weight %, polyethylene 0~10 weight %.
5. according to claim 1 or 2 described asphalt packages bag films, it is characterized in that: described rubber is to be selected from EPM, the ethylene propylene diene rubber one or more, or in the EPM, ethylene propylene diene rubber one or more rubber and the compound of s-B-S thermoplastic rubber, wherein, the weight ratio of s-B-S thermoplastic rubber in rubber composition is 0~50%.
6. according to the described asphalt packages bag film of claim 5, it is characterized in that EPM, the ethylene propylene diene rubber in the described rubber is weight average molecular weight 200,000~400,000, Mooney viscosity value [100 ℃ of ML (1+4)] is 25~80 EP rubbers product; The block that the s-B-S thermoplastic rubber adopts styrene and butadidenne is 100,000~300,000 star-like or linear polymer than the mol wt that is 20~45:80~55, obtains by polymerization reaction.
7. according to the described asphalt packages bag film of claim 1, it is characterized in that: described polyolefin is polyethylene or polypropylene, and polyethylene is that melt flow rate is low density polyethylene (LDPE) or high density polyethylene (HDPE) or the linear low density polyethylene (LLDPE) of 0.2g/10min~2g/10min; Polypropylene is that melt flow rate is that extrude flat filament class polypropylene or the melt flow rate of 1.4g/10min~8.4g/10min is in 5.7g/10min~13g/10min blown film class polypropylene one or more.
8. according to the preparation method of the described modified asphalt wrapping film bag of claim 1, it is characterized in that: will be by weight percentage by plastics 55~85%, rubber 3~25%, the host that performance reinforcing agent 5~20% is formed and by the lubricant of host weight 0.3~3.0%, after the auxiliary agent that the antioxidant of host weight 0.05~1.0% is formed mixes, drop into multiple screw extruder or plasticator melt blending equipment, mixing granulation under 170~220 ℃ of temperature, be 170~210 ℃ conditions under to extrude blown film by conventional blown film unit in temperature with pellet then, blowing out film thickness is 0.06~0.08mm film, makes modified asphalt wrapping film bag after the film envelope is cut.
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CN2008102389767A CN101746547B (en) | 2008-12-08 | 2008-12-08 | Modified asphalt wrapping film bag and preparation method thereof |
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CN2008102389767A CN101746547B (en) | 2008-12-08 | 2008-12-08 | Modified asphalt wrapping film bag and preparation method thereof |
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CN102558915A (en) * | 2010-12-30 | 2012-07-11 | 上海宝利纳材料科技有限公司 | Modified talcum powder and preparation method and application thereof |
CN102173139B (en) * | 2011-01-12 | 2014-04-16 | 北京印刷学院 | Multilayer composite oxygen absorption film for food packaging and preparation method thereof |
CN103231519B (en) * | 2013-03-29 | 2015-08-05 | 宁波江东晟利工业产品设计有限公司 | A kind of preparation method of fusible type MULTILAYER COMPOSITE pitch Filling bag |
CN106567307B (en) * | 2016-09-30 | 2019-02-19 | 福建铁拓机械有限公司 | A kind of construction method using solid granular regenerative agent production asphalt-regenerating material |
CN113372634A (en) * | 2020-03-09 | 2021-09-10 | 中石油克拉玛依石化有限责任公司 | Asphalt packaging bag and preparation method thereof |
CN114805976A (en) * | 2021-01-19 | 2022-07-29 | 中石油克拉玛依石化有限责任公司 | Fusible asphalt packaging bag and preparation method thereof |
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CN1566197A (en) * | 2003-06-27 | 2005-01-19 | 中国石油天然气股份有限公司 | Modified polyolefin material for asphalt soft package |
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Effective date of registration: 20180718 Address after: 100007 Dongzhimen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CNPC KARAMAY PETROCHEMICAL CO.,LTD. Patentee after: PetroChina Company Limited Address before: 100011 Beijing city Dongcheng District No. 16 Andrew intercontinental building Patentee before: PetroChina Company Limited |