CN1566197A - Modified polyolefin material for asphalt soft package - Google Patents
Modified polyolefin material for asphalt soft package Download PDFInfo
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- CN1566197A CN1566197A CN 03147793 CN03147793A CN1566197A CN 1566197 A CN1566197 A CN 1566197A CN 03147793 CN03147793 CN 03147793 CN 03147793 A CN03147793 A CN 03147793A CN 1566197 A CN1566197 A CN 1566197A
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- pitch
- polyethylene
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- asphalt
- bag
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Abstract
The invention relates to a modified polyolefin material for asphalt soft package which comprises polypropylene, polyethylene, polyethylene vinyl acetate copolymer, EPT rubber, and octadecanoic acid, the preparing process comprises the steps of, blending, granulating, blowing film, sealing, three-layer co-squeezing, and blowing film shaping.
Description
Technical field:
The present invention relates to a kind of soft package of pitch material polyolefin compositions, relating in particular to a kind of is the polyolefin compositions of main component with the modified polypropene hydrocarbon.
Background technology:
At present the soft package of pitch material mainly adopts papery packing bag and polypropylene, vinyon packing bag.The papery packing bag is anti-asphalt adhesive material because of internal layer scribbles, can be 130 ℃ of cans, resistance toheat satisfies service requirements, but this coated material price is more expensive, make paper bag complete processing complexity, become Ordering-the higher, and must Stripping when using from packing, and the depleted packing bag can not be recycled, again contaminate environment.The US4450962 patent report a kind ofly contain trilaminar asphalt packaging bag, inner bag is a low-density polyethylene material, the middle layer scribbles Organosilicon Release Agent, skin is nylon 6 films.The fusing point of new LDPE (film grade) has only 103 ℃, so bituminous can temperature should not surpass 100 ℃, and viscosity is very big during 100 ℃ of pitches, so filling speed is very slow, commercial viability is not high.Nylon thermotolerance height, the cost height owing to limit by itself material and structure, can not with the pitch mixing.The packing bag made from the plain polypropylene material, though can satisfy service requirements at aspects such as thermotolerance, intensity ageing resistances, but below 175 ℃ can not with the pitch mixing, therefore, also must again packing bag be picked up from packing bag or behind asphalt melting by first Stripping during construction, not only influenced job schedule but also contaminate environment.CN1126141A discloses a kind of asphalt packaging bag, divides inside and outside two layers, and inner plastic, skin are plastic braid ply or hard ply of paper, mainly is that starting material are made with the modified poly ethylene.CN1132222A has adopted modified polypropene to make the soft package of pitch bag, so-called modified polypropene component is polypropylene, polyethylene, polyethylene vinyl acetate multipolymer, ethylene-propylene copolymer and solid paraffin, this flexible packing material all can satisfy service requirements at aspects such as resistance toheat, intensity, ageing resistances, and 170～175 ℃ of fusions, good with the pitch blending, but should packing adopt traditional technology to make the flow process more complicated.
Summary of the invention:
The object of the present invention is to provide a kind of new modified polypropylene formulations that is used to make the soft package of pitch bag, asphalt packaging bag with this prescription making, in can, and do not break in the storage and transport process, embrittlement not, aspects such as resistance toheat, intensity, ageing resistance all can satisfy service requirements, can with pitch 170-175 ℃ of mixing, good with the pitch blending, do not influence the asphalt quality performance, both free from environmental pollution, can bring great convenience to construction work again.
The solution of the present invention is to change polyolefinic some performance, the requirement when making it can satisfy pitch can, accumulating and use by add multiple high molecular polymer and additive in polyolefine.Modified polyolefin prescription of the present invention is formed (weight percent): polypropylene 0～69%, polyethylene 2～70%, polyethylene acetate ethylene copolymer 1～10%, terpolymer EP rubber 1～15%, stearic acid 0.5～5%.Optimum formula proportioning (weight percent) is: polypropylene 57～65%, polyethylene 10～18%, polyethylene acetate ethylene copolymer 5～10%, terpolymer EP rubber 5～10%, stearic acid 2～5%.Can make asphalt packaging bag by the even batch mixing of plastic working, melt pelletization, blown film, envelope cutting process by each component that said ratio is selected, also the raw material of said ratio directly can be made asphalt packaging bag by the three-layer co-extruded film-blowing process of plastic working.
The asphalt packaging bag that adopts above-mentioned modified polypropene to make can not soften at 130 ℃ of following can pitches, does not break, aspects such as its resistance toheat, intensity, ageing resistance all can satisfy service requirements, can with pitch at 170～175 ℃ of consolutes, good with the pitch blending, do not influence the asphalt quality performance.
In the batch mixing granulation bag technology of the present invention, because through melt pelletization, the polypropylene molecule structural rearrangement that makes, its tensile strength of the modified polypropene molecule of blowfilm shaping increases, melt temperature reduces about 3～5 ℃ than corresponding pp material (polyacrylic fusing point is at 170～175 ℃), and heat sensitivity increases.
Three-layer co-extruded bag technology of the present invention, be through the three-layer co-extruded blown film of film blow molding machine with above-mentioned polypropylene, polyethylene and rubber (polyethylene acetate ethylene copolymer, terpolymer EP rubber, stearic acid) three big raw materials, outer layer polyethylene film wherein, intermediate rubber mould, internal layer polypropylene screen.Inner membrance is heat-resisting, and the middle level is anti-aging, and is outer anti-aging.During use, pitch is dropped in the pitch bay together with packing bag, when temperature rises to 160 ℃, outer layer polyethylene and the fusing of intermediate rubber mould, when continuing to be warming up to 170～180 ℃, the internal layer polypropylene screen melts gradually, through agitation as appropriate and pitch mixing, both can be used as asphalt component and used, do not influenced the bituminous use properties, even can improve the bituminous use properties to a certain extent.
The present invention has following characteristics: the asphalt packaging bag that (1) adopts above-mentioned modified polypropene to make can not soften at 130 ℃ of following can pitches, does not break; (2) the wrapping material resistance toheat is good, the physical strength height, and resistance of aging is strong; (3) these wrapping material can with the pitch mixing, with pitch, blending is good, does not influence asphalt performance, can be directly as asphalt component, convenient construction uses, and is free from environmental pollution.
Specific embodiments:
Each component of following examples all is weight percentage
Embodiment 1
With 65% polypropylene (melt index 2.1～20.0g/10min), 15% polyethylene (melt index 9.2～12.8g/10min), polyethylene acetate ethylene copolymer 10%, terpolymer EP rubber 8%, stearic acid 2% mixes, and granulation, blown film, envelope cut into asphalt packaging bag.This bag is after tested: longitudinal tensile strength is 28.7MPa, transverse tensile strength is 29.7MPa, longitudinal fracture elongation 1860%, transverse breakage elongation 1840%, with this soft packaging bag can pitch under the temperature of 130 ℃ (pitch is fine in this temperature current downflow), this bag is softening transform not, does not have the pitch of leakage phenomenon.Packing bag is dropped in 170～175 ℃ of pitch bays, slowly stir, packing bag begins to shrink and is fused into cotton-shapedly, is dispersed in the pitch fully in 5 minutes.
The pitch of mixing packing bag and protobitumen performance test data table
| Title | 25 ℃ of penetration degrees, 1/10mm | 25 ℃ of extensibilities, cm | Softening temperature ℃ |
| Unfilled bitumen | ??????63 | ????82 | ????47 |
| The pitch of mixing packing bag | ??????65 | ????83 | ????47 |
Embodiment 2
Embodiment 1 proportion raw material is carried out three-layer co-extruded blown film, make asphalt packaging bag.This bag is after tested: longitudinal tensile strength is 28.7MPa, and transverse tensile strength is 29.7MPa, longitudinal fracture elongation 1860%, transverse breakage elongation 1840%.With this soft packaging bag can pitch under the temperature of 130 ℃ (pitch is fine in this temperature current downflow), this bag is softening transform not, does not have the pitch of leakage phenomenon.Packing bag is dropped in 170～175 ℃ of pitch bays, slowly stir, packing bag begins to shrink and is fused into cotton-shapedly, is dispersed in the pitch fully in 5 minutes.
Embodiment 3～14 (seeing Table)
| Embodiment | Technology | Polypropylene % | Polyethylene % | Polyethylene acetate ethylene copolymer % | Ethylene-propylene copolymer % | Hard ester acid % | Tensile strength is indulged/horizontal MPa | Elongation at break (vertical/horizontal stroke) % | 130 ℃ of thermotolerances. | Fusion time 170 ℃ of .min |
| ??3 | The batch mixing blown film | ????0 | ????70 | ????10 | ????15 | ????4 | ????18.8/21.4 | ??2587/2404 | Do not leak | 2 |
| ??4 | The batch mixing blown film | ????10 | ????67 | ????8 | ????12 | ????3 | ????22.6/23.1 | ??2510/2380 | Do not leak | 3 |
| ??5 | Three-layer co-extruded | ????25 | ????58 | ????5 | ????10 | ????2 | ????21.7/23.9 | ??2420/2201 | Do not leak | 3 |
| ??6 | Three-layer co-extruded | ????35 | ????47.5 | ????9 | ????7 | ????1.5 | ????22.9/24.2 | ??2200/2046 | Do not leak not distortion | 3.5 |
| ??7 | Three-layer co-extruded | ????45 | ????46.5 | ????3 | ????5 | ????0.5 | ????24.1/26.7 | ??2188/2085 | Do not leak not distortion | 3.5 |
| ??8 | Three-layer co-extruded | ????50 | ????45.0 | ????1 | ????1 | ????3 | ????24.8/26.5 | ??1980/1840 | Do not leak not distortion | 4 |
| ??9 | The batch mixing blown film | ????60 | ????20 | ????6 | ????13 | ????1 | ????26.0/28.7 | ??1900/1826 | Do not leak not distortion | 4.5 |
| ??10 | Three-layer co-extruded | ????63 | ????15 | ????9 | ????9 | ????4 | ????26.6/28.3 | ??1890/1810 | Do not leak not distortion | 4.5 |
| ??11 | The batch mixing blown film | ????69 | ????8 | ????10 | ????11 | ????2 | ????29.4/30.7 | ??1856/1745 | Do not leak not distortion | 5 |
| ??12 | The batch mixing blown film | ????69 | ????2 | ????1 | ????14 | ????3 | ????29.4/31.2 | ??1742/1650 | Do not leak not distortion | 5 |
| ??13 | Three-layer co-extruded | ????40 | ????50 | ????4.5 | ????3 | ????2.5 | ????23.0/24.8 | ??2225/2050 | Do not leak not distortion | 3.5 |
| ??14 | Three-layer co-extruded | ????55 | ????30 | ????10 | ????4 | ????1 | ????25.1/27.9 | ??1970/1835 | Do not leak not distortion | 4 |
Claims (4)
1. modified polyolefine material that is used for soft package of pitch, it is characterized in that: it is to be made of following component (weight percent)
Polypropylene 0～69%, polyethylene 2～70%, polyethylene acetate ethylene copolymer 1～10%, terpolymer EP rubber 1～15%, stearic acid 0.5～5%.
2. a kind of modified polyolefine material that is used for soft package of pitch according to claim 1,
It is characterized in that: its best proportioning (weight percent) is
Polypropylene 55～65%, polyethylene 10～18%, polyethylene acetate ethylene copolymer 5～10%, terpolymer EP rubber 5～10%, stearic 2～5%.
3. a kind of modified polyolefine material that is used for soft package of pitch according to claim 1 is characterized in that: with the composition of said ratio, blend, granulation, blown film, envelope are cut into shape.
4. a kind of modified polyolefine material that is used for soft package of pitch according to claim 1 is characterized in that: the composition of said ratio directly is shaped through three-layer co-extruded, blown film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03147793 CN1247683C (en) | 2003-06-27 | 2003-06-27 | Modified polyolefin material for asphalt soft package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03147793 CN1247683C (en) | 2003-06-27 | 2003-06-27 | Modified polyolefin material for asphalt soft package |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1566197A true CN1566197A (en) | 2005-01-19 |
| CN1247683C CN1247683C (en) | 2006-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03147793 Expired - Fee Related CN1247683C (en) | 2003-06-27 | 2003-06-27 | Modified polyolefin material for asphalt soft package |
Country Status (1)
| Country | Link |
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| CN (1) | CN1247683C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870786A (en) * | 2010-07-01 | 2010-10-27 | 海宁海欣真空包装有限公司 | High-temperature paint protective film without educts |
| CN101624458B (en) * | 2009-07-24 | 2011-02-16 | 无锡嘉旺精密包装材料有限公司 | Mixing material of high-density polyethylene, polypropylene and triatomic ethylene-propylene copolymer and preparation method thereof |
| CN101746547B (en) * | 2008-12-08 | 2011-04-20 | 中国石油天然气股份有限公司 | Modified asphalt wrapping film bag and preparation method thereof |
| CN102174224A (en) * | 2011-03-23 | 2011-09-07 | 河北瑞泰塑业有限公司 | Environmentally-friendly frozen food packaging material and method for producing frozen food package by using same |
| CN104149370A (en) * | 2014-07-11 | 2014-11-19 | 马志源 | Method for preparing fusible multilayer composite co-extrusion asphalt filling bags |
| CN105820432A (en) * | 2016-04-18 | 2016-08-03 | 江苏优珀斯材料科技有限公司 | Modified polyolefin compound melting film and processing method thereof |
| CN110041718A (en) * | 2019-04-25 | 2019-07-23 | 山东高速路用新材料技术有限公司 | A kind of preparation method of environment-friendly type asphalt modifier |
| CN111891559A (en) * | 2020-05-19 | 2020-11-06 | 中国森田企业集团有限公司 | Solid granules and method for transporting solidified asphalt |
| CN113024946A (en) * | 2021-03-08 | 2021-06-25 | 安徽联科水基材料科技有限公司 | High-heat-seal-strength PP (polypropylene) modified material for film blowing and preparation method thereof |
-
2003
- 2003-06-27 CN CN 03147793 patent/CN1247683C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101746547B (en) * | 2008-12-08 | 2011-04-20 | 中国石油天然气股份有限公司 | Modified asphalt wrapping film bag and preparation method thereof |
| CN101624458B (en) * | 2009-07-24 | 2011-02-16 | 无锡嘉旺精密包装材料有限公司 | Mixing material of high-density polyethylene, polypropylene and triatomic ethylene-propylene copolymer and preparation method thereof |
| CN101870786A (en) * | 2010-07-01 | 2010-10-27 | 海宁海欣真空包装有限公司 | High-temperature paint protective film without educts |
| CN101870786B (en) * | 2010-07-01 | 2012-06-06 | 海宁海欣真空包装有限公司 | High-temperature paint protective film without educts |
| CN102174224A (en) * | 2011-03-23 | 2011-09-07 | 河北瑞泰塑业有限公司 | Environmentally-friendly frozen food packaging material and method for producing frozen food package by using same |
| CN102174224B (en) * | 2011-03-23 | 2012-08-15 | 河北瑞泰塑业有限公司 | Environmentally-friendly frozen food packaging material and method for producing frozen food package by using same |
| CN104149370A (en) * | 2014-07-11 | 2014-11-19 | 马志源 | Method for preparing fusible multilayer composite co-extrusion asphalt filling bags |
| CN105820432A (en) * | 2016-04-18 | 2016-08-03 | 江苏优珀斯材料科技有限公司 | Modified polyolefin compound melting film and processing method thereof |
| CN105820432B (en) * | 2016-04-18 | 2018-07-03 | 江苏优珀斯材料科技有限公司 | Improved polyalkene is compound to melt film and its processing method |
| CN110041718A (en) * | 2019-04-25 | 2019-07-23 | 山东高速路用新材料技术有限公司 | A kind of preparation method of environment-friendly type asphalt modifier |
| CN110041718B (en) * | 2019-04-25 | 2021-11-19 | 山东高速路用新材料技术有限公司 | Preparation method of environment-friendly asphalt modifier |
| CN111891559A (en) * | 2020-05-19 | 2020-11-06 | 中国森田企业集团有限公司 | Solid granules and method for transporting solidified asphalt |
| CN113024946A (en) * | 2021-03-08 | 2021-06-25 | 安徽联科水基材料科技有限公司 | High-heat-seal-strength PP (polypropylene) modified material for film blowing and preparation method thereof |
Also Published As
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|---|---|
| CN1247683C (en) | 2006-03-29 |
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Assignee: Xinjiang Konka investment (Group) Co., Ltd. Assignor: PetroChina Karamay Petrochemical Company Contract record no.: 2010650000005 Denomination of invention: Modified polyolefin material for asphalt soft package Granted publication date: 20060329 License type: Exclusive License Open date: 20050119 Record date: 20100527 |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180718 Address after: 100007 Dongzhimen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: PetroChina Karamay Petrochemical Co., Ltd. Patentee after: PETROCHINA Co.,Ltd. Address before: 100011 Beijing city Dongcheng District No. 16 Andrew intercontinental building Patentee before: PETROCHINA Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060329 Termination date: 20210627 |