CN102276913B - Polypropylene material for MPP (modified polypropylene) jacking pipe - Google Patents
Polypropylene material for MPP (modified polypropylene) jacking pipe Download PDFInfo
- Publication number
- CN102276913B CN102276913B CN 201110197719 CN201110197719A CN102276913B CN 102276913 B CN102276913 B CN 102276913B CN 201110197719 CN201110197719 CN 201110197719 CN 201110197719 A CN201110197719 A CN 201110197719A CN 102276913 B CN102276913 B CN 102276913B
- Authority
- CN
- China
- Prior art keywords
- polypropylene
- push pipe
- mpp
- percent
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 title claims abstract description 55
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 45
- -1 Polypropylene Polymers 0.000 title claims abstract description 44
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 42
- 239000000843 powder Substances 0.000 claims abstract description 9
- 239000002131 composite material Substances 0.000 claims abstract description 7
- 239000000049 pigment Substances 0.000 claims abstract description 7
- 238000004132 cross linking Methods 0.000 claims abstract description 4
- 239000003431 cross linking reagent Substances 0.000 claims description 17
- 239000004698 Polyethylene Substances 0.000 claims description 11
- 229920000573 polyethylene Polymers 0.000 claims description 11
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 11
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000005728 strengthening Methods 0.000 claims description 9
- 229920001897 terpolymer Polymers 0.000 claims description 9
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 8
- 239000003112 inhibitor Substances 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 8
- 238000007254 oxidation reaction Methods 0.000 claims description 8
- 239000000314 lubricant Substances 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 7
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 6
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000008188 pellet Substances 0.000 claims description 4
- OJOWICOBYCXEKR-KRXBUXKQSA-N (5e)-5-ethylidenebicyclo[2.2.1]hept-2-ene Chemical group C1C2C(=C/C)/CC1C=C2 OJOWICOBYCXEKR-KRXBUXKQSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims description 3
- 239000012969 di-tertiary-butyl peroxide Substances 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 239000003999 initiator Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 230000005496 eutectics Effects 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 229960001866 silicon dioxide Drugs 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 5
- 229920003023 plastic Polymers 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 abstract description 2
- 239000004605 External Lubricant Substances 0.000 abstract 1
- 239000004610 Internal Lubricant Substances 0.000 abstract 1
- 239000003963 antioxidant agent Substances 0.000 abstract 1
- 230000003078 antioxidant effect Effects 0.000 abstract 1
- 238000005452 bending Methods 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 239000002667 nucleating agent Substances 0.000 abstract 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 abstract 1
- 239000012744 reinforcing agent Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 3
- 238000007334 copolymerization reaction Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000012661 block copolymerization Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a polypropylene material for an MPP (modified polypropylene) jacking pip, relating to the technical field of high molecule plastics. The polypropylene material comprises the following components: 25-50 percent by weight of low-flow homogeneous polypropylene powder, 25-50 percent by weight of pipe-grade propylene copolymer aggregates, 3-10 percent by weight of cross-linking material, 5-40 percent by weight of inorganic reinforcing agent, 0.1-4 percent by weight of antioxidant and nucleating agent, 0.1-3 percent by weight of composite pigment and 1-5 percent by weight of internal and external lubricants for a high molecular material. The material disclosed by the invention has high toughness, high tensile strength, high bending strength and welding strength and long service life.
Description
Technical field
The present invention relates to the high molecule plastic technical field, be specifically related to a kind of MPP push pipe polypropylene material.
Background technology
In recent years, along with the raising of PP Production Technology, the improvement of polymerization technique, use polypropylene dedicated novel material in every respect constantly to occur; Polypropylene articles is used widely in fields such as packing, transportation, household electrical appliances, automobile, office, building materials.
Polypropylene product is divided into homopolymerization type and copoly type, and copoly type is divided into again block copolymerization and random copolymerization.During the homo-polypropylene low-temperature impact, poor toughness, large, the easy buckling deformation of product of molding shrinkage; Co-polypropylene has been improved low-temperature impact, has preferably snappiness, but its tensile strength, flexural strength are high not as homo-polypropylene.
The MPP push pipe is a kind of novel pipeline that occurs recently, and mainly as the sleeve pipe of cable, its external diameter is 120-500mm.In the urban construction process, need the cable penetration building underground, jaywalk, during the irremovable facility such as river, need under these facilities, punch in advance, then allow the MPP push pipe from hole, pass, again cable is passed from the MPP push pipe.The MPP push pipe length of passing hole is generally 9-500 rice, and every MPP length of tube is 6 meters, and surpassing 6 meters need weld at the construction field (site).Therefore the MPP push pipe requires to have very high toughness, intensity, welding strength and ring stiffness, and the polypropylene that present petrochemical industry producer direct polymerization forms can not satisfy the service requirements of MPP push pipe.
Summary of the invention
Technical problem to be solved by this invention provides and is a kind ofly guaranteeing that the MPP push pipe later stage produces under the stable prerequisite, guarantees that simultaneously material has high tenacity very, reaches polypropylene material than the long life than high tensile, fine flexural strength and welding strength.
For realizing purpose of the present invention, specifically adopt following technical scheme:
MPP push pipe polypropylene material of the present invention, consisted of by following component: low flow homo-polypropylene powder 25-50wt%, tubing level Co-polypropylene pellet 25-50wt%, cross-linking agent 3-10wt%, inorganic strengthening agent 5-40wt%, oxidation inhibitor and nucleator 0.1-4wt%, composite pigment 0.1-3wt%, the inside and outside lubricant agent 1-5wt% that macromolecular material is used.
For better implementing the invention, described low flow homo-polypropylene powder is the polyacrylic combination of one or more eutectic fat of melting index 0.1-1g/10min.
Be better to implement the invention, described tubing level Co-polypropylene pellet is tubing level 4220,8101 one or more arbitrary combination.
For better implementing the invention, described cross-linking agent is raw material for adopting 75wt% polyethylene and 25wt% terpolymer EP rubber, take superoxide as initiator, the addition of superoxide is 0.3% of polyethylene and terpolymer EP rubber total amount, little crosslinked extrused granulation produces in twin screw extruder, it is used for improving the toughness of MPP push pipe but does not reduce the intensity of material, improves simultaneously the welding property of MPP push pipe.
Further, described polyethylene is linear low density polyethylene and/or Low Density Polyethylene, and the melting index of bi-material is less than 5; Described terpolymer EP rubber is the E type, and namely the 3rd monomer is ethylidene norbornene; Superoxide is a kind of among DCP, BPO and the DTBP.
Further, producing this cross-linking agent may further comprise the steps:
(1) several raw materials evenly mix by proportioning;
(2) in twin screw extruder, carry out crosslinking reaction, temperature 190-270 ℃, rotating speed 230rpm;
(3) adopt fervent form that cross-linking agent is cut into particle, water-cooled is crossed and air-dryly behind the vibratory screening apparatus can be obtained this cross-linking agent.
Be better to implement the invention, described inorganic strengthening agent is one or more arbitrary combination of alkali free glass fibre, silicon-dioxide, barium sulfate, calcium carbonate.
Be better to implement the invention, described oxidation inhibitor and nucleator are one or more arbitrary combination of organic phenol, organophosphate, Gum Rosin.
Be better to implement the invention, described inside and outside lubricant agent is polyethylene wax, EBS, stearic one or more arbitrary combination.
Each component property of polypropylene material of the present invention is as follows:
Select the low flow homo-polypropylene, as the base mateiral of this system, make material process stabilizing when extruding pipe material, and improve the intensity of matrix material.The low flow homo-polypropylene is because molecular weight is larger, so its tensile strength and flexural strength are high by about 20% than general purpose polypropylene.
Select tubing level Co-polypropylene, as the compatilizer of system, and improve simultaneously the toughness of system.According to the difference of adding umber, the toughness of material increase rate differs.
Select inorganic strengthening agent, improve hardness and the thermotolerance of material, improve the ring stiffness of MPP push pipe.
Select oxidation inhibitor and nucleator, it is apparent to improve material, improves material lifetime.
Select composite pigment, dyeing usefulness reaches the desired goods color of downstream user.
The Data Comparison of the MPP push pipe that the table 1 MPP push pipe that to be MPP push pipe of the present invention produce with polypropylene material and existing special material for tube 8101 are produced:
The contrast of polypropylene material, special material for tube 8101 test performances and MPP push pipe material new standard of table 1, MPP push pipe
Data Comparison by upper table 1, can find that the index of the MPP push pipe that MPP push pipe of the present invention is produced with polypropylene material can satisfy the requirement of MPP push pipe new standard, and some index of the MPP push pipe that the domestic special material for tube 8101 that generally uses is at present produced is to satisfy the requirement of MPP push pipe new standard.
Table 2 is MPP push pipes of the present invention with the comparison of polypropylene material and special material for tube 8101, injection grade copolymerization PP material property:
The contrast of table 2, MPP push pipe polypropylene material, special material for tube 8101, injection grade copolymerization PP material property
Can find out from the data of table 2: MPP push pipe of the present invention surpasses the material of other two kinds of production MPP tubing of commonly using in the market aspect tensile strength, modulus in flexure and Vicat softening point with polypropylene material; Exactly because the deficiency of the existing above performance of bi-material makes this bi-material can not satisfy the requirement of producing the MPP push pipe.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail:
Case study on implementation 1
MPP push pipe polypropylene material of the present invention is made of following component: the low flow homo-polypropylene, and Luoyang Petrochemical is produced powder, trade mark 003-2, addition 35wt%, tubing level Co-polypropylene, 8101 of Yanshan Petrochemical production, 50wt%, self-control cross-linking agent 3wt%, inorganic strengthening agent water-ground limestone 9wt%, oxidation inhibitor is 1010 and 168 compound, and addition 0.15wt%, nucleator are rosin based petroleum resin 0.05wt%, composite pigment 0.3wt%, inside and outside lubricant agent 2.5wt%.
More than the MPP push pipe PP Pipe Compound performance of prescription is as shown in table 3 below:
Table 3
Case study on implementation 2
MPP push pipe polypropylene material of the present invention is made of following component by weight percentage: the low flow homo-polypropylene, and Luoyang Petrochemical is produced powder, trade mark 003-1,50wt%, tubing level Co-polypropylene, 4220 of Yanshan Petrochemical production, 25wt%, self-produced cross-linking agent 10wt %, inorganic strengthening agent is barium sulfate, and 12wt%, oxidation inhibitor are 1010 and 168 compounds, addition 0.3wt%, nucleator is rosin based petroleum resin 0.2wt%, composite pigment 0.2wt%, inside and outside lubricant agent 2.3wt%.
MPP push pipe PP Pipe Compound performance such as the following table 4 of more than filling a prescription
Table 4
Case study on implementation 3
The MPP push pipe of the present invention application of polypropylene material in producing the MPP push pipe, consisted of by following component by weight percentage: the low flow homo-polypropylene, Luoyang Petrochemical is produced powder, trade mark 003-2,40wt%, tubing level Co-polypropylene, 4220 of Yanshan Petrochemical production, 40wt%, self-produced cross-linking agent 8 %, inorganic strengthening agent water-ground limestone 5wt%, barium sulfate 3.5wt%, oxidation inhibitor is 1010 and 168 compound, and addition 0.4wt%, nucleator are rosin based petroleum resin 0.1wt%, composite pigment 1.5wt%, inside and outside lubricant agent 1.5wt%.
MPP push pipe PP Pipe Compound performance such as the following table 5 of more than filling a prescription
Table 5
It is raw material that self-produced cross-linking agent in above-described embodiment adopts 75wt% polyethylene and 25wt% terpolymer EP rubber, take superoxide as initiator, the addition of superoxide is 0.3% of polyethylene and terpolymer EP rubber total amount, little crosslinked extrused granulation produces in twin screw extruder, it is used for improving the toughness of MPP push pipe but does not reduce the intensity of material, improves simultaneously the welding property of MPP push pipe.Wherein, polyethylene is linear low density polyethylene and/or Low Density Polyethylene, and the melting index of bi-material is less than 5; Terpolymer EP rubber is the E type, and namely the 3rd monomer is ethylidene norbornene; Superoxide is a kind of among DCP, BPO and the DTBP.
Producing this cross-linking agent may further comprise the steps:
(1) several raw materials evenly mix by proportioning;
(2) in twin screw extruder, carry out crosslinking reaction, temperature 190-270 ℃, rotating speed 230rpm;
(3) adopt fervent form that cross-linking agent is cut into particle, water-cooled is crossed and air-dryly behind the vibratory screening apparatus can be obtained this cross-linking agent.
The MPP push pipe of present embodiment is with polypropylene material being a kind of novel matrix material, and, existing MPP special material for tube is compared on the matrix material of this invention and the market, owing to adopted polypropylene powder material and inorganic strengthening agent with low cost, reduced the cost of matrix material, made the MPP push pipe of producing have characteristics with low cost.
Claims (1)
1. MPP push pipe polypropylene material, it is characterized in that: consisted of by following component: low flow homo-polypropylene powder 25-50wt%, tubing level Co-polypropylene pellet 25-50wt%, cross-linking agent 3-10wt%, inorganic strengthening agent 5-40wt%, oxidation inhibitor and nucleator 0.1-4wt%, composite pigment 0.1-3wt%, the inside and outside lubricant agent 1-5wt% that macromolecular material is used; Wherein, the polyacrylic combination that one or more eutectics that described low flow homo-polypropylene powder is melting index 0.1-1g/10min refer to, the measuring method of this melting index and condition are GB3682-1983; Described tubing level Co-polypropylene pellet is tubing level 4220,8101 one or more arbitrary combination; Described cross-linking agent is raw material for adopting 75wt% polyethylene and 25wt% terpolymer EP rubber, take superoxide as initiator, the addition of superoxide is 0.3% of polyethylene and terpolymer EP rubber total amount, and little crosslinked extrused granulation produces in twin screw extruder.
2, MPP push pipe polypropylene material according to claim 1, it is characterized in that: described polyethylene is linear low density polyethylene and/or Low Density Polyethylene, the melting index of bi-material is less than 5g/10min, and the measuring method of melting index and condition are GB3682-1983; Described terpolymer EP rubber is the E type, and namely the 3rd monomer is ethylidene norbornene; Described superoxide is a kind of among DCP, BPO and the DTBP.
3, MPP push pipe polypropylene material according to claim 1 is characterized in that: produce this cross-linking agent and may further comprise the steps:
(1) several raw materials evenly mix by proportioning;
(2) in twin screw extruder, carry out crosslinking reaction, temperature 190-270 ℃, rotating speed 230rpm;
(3) adopt fervent form that cross-linking agent is cut into particle, water-cooled is crossed and air-dryly behind the vibratory screening apparatus can be obtained this cross-linking agent.
4, MPP push pipe polypropylene material according to claim 1 is characterized in that: described inorganic strengthening agent is one or more arbitrary combination of alkali free glass fibre, silicon-dioxide, barium sulfate, calcium carbonate.
5, MPP push pipe polypropylene material according to claim 1 is characterized in that: described oxidation inhibitor is one or more arbitrary combination of organic phenol, organophosphate, and described nucleator is Gum Rosin.
6, MPP push pipe polypropylene material according to claim 1 is characterized in that: described inside and outside lubricant agent is polyethylene wax, EBS, stearic one or more arbitrary combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110197719 CN102276913B (en) | 2011-07-15 | 2011-07-15 | Polypropylene material for MPP (modified polypropylene) jacking pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110197719 CN102276913B (en) | 2011-07-15 | 2011-07-15 | Polypropylene material for MPP (modified polypropylene) jacking pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102276913A CN102276913A (en) | 2011-12-14 |
| CN102276913B true CN102276913B (en) | 2013-03-20 |
Family
ID=45102675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110197719 Expired - Fee Related CN102276913B (en) | 2011-07-15 | 2011-07-15 | Polypropylene material for MPP (modified polypropylene) jacking pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102276913B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103146055B (en) * | 2013-03-04 | 2016-01-20 | 宁波锦地工程塑料有限公司 | Food-grade heat-resistant polypropylene composite material and preparation method thereof |
| CN104086890B (en) * | 2014-07-11 | 2016-08-24 | 安徽宁国市高新管业有限公司 | A kind of high fire-retardance MPP electric power protection pipe |
| CN104151703B (en) * | 2014-08-08 | 2016-08-24 | 嘉兴市金阳塑胶管业有限公司 | A kind of MPP power pipe with high-fire resistance energy |
| CN104629174A (en) * | 2015-01-13 | 2015-05-20 | 安徽泰诺塑胶有限公司 | Light-weight polypropylene material |
| CN106243495A (en) * | 2016-08-03 | 2016-12-21 | 安庆市悦发管业有限公司 | A kind of novel MPP power cable protecting pipe |
| CN106633379A (en) * | 2016-10-12 | 2017-05-10 | 重庆金山洋生管道有限公司 | Special large-diameter crosslinked polypropylene spirally enwound structure-wall pipeline for sewage drainage of underground pipe gallery |
| CN107965621A (en) * | 2017-11-03 | 2018-04-27 | 金华市华宇管业有限公司 | HDPE is molded push pipe |
| CN111154175A (en) * | 2018-11-08 | 2020-05-15 | 昆山英诺特新材料有限公司 | Rigidity-enhanced polypropylene resin material |
| CN111218066A (en) * | 2019-12-28 | 2020-06-02 | 会通新材料股份有限公司 | Anti-tiger stripe polypropylene blasting material and preparation method thereof |
| CN114456487B (en) * | 2021-12-27 | 2023-09-19 | 国家能源集团宁夏煤业有限责任公司 | Polypropylene composition and application thereof |
| CN115232412A (en) * | 2022-07-12 | 2022-10-25 | 刘现海 | Composite top pull pipe for municipal building and preparation method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1470557A (en) * | 2002-07-24 | 2004-01-28 | 上海维安新型建筑材料有限公司 | Flexible polypropylene pipe and its producing process |
| CN1637055A (en) * | 2003-12-26 | 2005-07-13 | 日本聚丙烯有限公司 | Polypropylene-based resin composition and molded article thereof |
| CN101255255A (en) * | 2007-02-28 | 2008-09-03 | 住友化学株式会社 | Polypropylene resin composition and molded article |
| CN101544793A (en) * | 2009-04-29 | 2009-09-30 | 常州市飞拓模塑有限公司 | Modified polypropylene material and application thereof |
| CN101747555A (en) * | 2008-12-16 | 2010-06-23 | 金发科技股份有限公司 | Scratch resisting polypropylene compound |
| CN101967246A (en) * | 2010-10-20 | 2011-02-09 | 杭州联通管业有限公司 | Modified polypropylene pipe used for protecting high-voltage power cable |
-
2011
- 2011-07-15 CN CN 201110197719 patent/CN102276913B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1470557A (en) * | 2002-07-24 | 2004-01-28 | 上海维安新型建筑材料有限公司 | Flexible polypropylene pipe and its producing process |
| CN1637055A (en) * | 2003-12-26 | 2005-07-13 | 日本聚丙烯有限公司 | Polypropylene-based resin composition and molded article thereof |
| CN101255255A (en) * | 2007-02-28 | 2008-09-03 | 住友化学株式会社 | Polypropylene resin composition and molded article |
| CN101747555A (en) * | 2008-12-16 | 2010-06-23 | 金发科技股份有限公司 | Scratch resisting polypropylene compound |
| CN101544793A (en) * | 2009-04-29 | 2009-09-30 | 常州市飞拓模塑有限公司 | Modified polypropylene material and application thereof |
| CN101967246A (en) * | 2010-10-20 | 2011-02-09 | 杭州联通管业有限公司 | Modified polypropylene pipe used for protecting high-voltage power cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102276913A (en) | 2011-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102276913B (en) | Polypropylene material for MPP (modified polypropylene) jacking pipe | |
| CN106700235B (en) | Preparation and method of high-transparency flame-retardant polypropylene/COC composite material | |
| CN102617997B (en) | Glass fiber-reinforced PBT/PET (Polybutylece Terephthalate/Polyethyleneglycol Terephthalate) composite material and preparation method thereof | |
| CN102391432B (en) | High-fluidity ethylene-alpha-octene graft copolymer and preparation method thereof | |
| CN112358724B (en) | High-wear-resistance low-temperature-rise polyamide composition and preparation method and application thereof | |
| CN102850650A (en) | Basalt fiber reinforced polypropylene composite material and preparation method thereof | |
| CN106243480B (en) | EVA (ethylene-vinyl acetate) type wear-resistant flame-retardant elastomer material and preparation method thereof | |
| CN101314672A (en) | High-gloss, low-smell, reinforced nylon composite material and preparation method thereof | |
| CN103665817B (en) | High-impact resistance polycarbonate composite material and preparation method for same | |
| CN111019209B (en) | Ultra-high molecular weight polyethylene composition for preparing liner tube and preparation method thereof | |
| CN102643484A (en) | In-situ compatibilization polyolefin/polystyrene alloy and preparation method and application thereof | |
| CN104086895A (en) | Ultra-low-temperature resistant composite polypropylene material and preparation method thereof | |
| CN101948606B (en) | A kind of highly wear-resistant self-lubricating polyoxymethylene composite material and its preparation method | |
| CN106928626A (en) | Thermoplastic elastic material for secondary injection adhering and preparation method thereof | |
| CN104629324A (en) | High-strength toughened functionalized PC/ABS alloy material | |
| CN102295799B (en) | Polyethylene resin composition for pipes | |
| CN105385088A (en) | Polypropylene composition and preparation method thereof | |
| CN106147008B (en) | A kind of no tiger fur line PP composite material and preparation method thereof | |
| CN111040307A (en) | Polypropylene corrugated pipe composite material and preparation method of composite polypropylene corrugated pipe | |
| CN103755881B (en) | The compatilizer of polyphenylene sulfide and polyamide, polyphenylene sulfide/polyamide compoiste material containing the compatilizer and preparation method thereof | |
| CN109679243B (en) | Heat-resistant corrosion-resistant polyvinyl chloride water supply and drainage pipe and preparation method thereof | |
| CN110591231A (en) | High-strength and high-toughness MPP (modified Polypropylene) power tube and preparation method thereof | |
| CN107057271B (en) | A kind of friction and wear-resistant polyoxymethylene composite material and preparation method thereof | |
| CN104974394B (en) | Polyethylene resin composition and preparation method thereof | |
| CN103554902B (en) | Nylon composite materials and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LUOYANG HEZHIYANG MACROMOLECULE MATERIAL CO., LTD. Free format text: FORMER NAME: LUOYANG CITY HEZHIYANG MACROMOLECULE MATERIAL CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 471012 Jili Science Park, Jili District, Henan, Luoyang Patentee after: LUOYANG CITY HEZHIYANG MACROMOLECULE MATERIAL CO., LTD. Address before: 471012 Jili Science Park, Jili District, Henan, Luoyang Patentee before: Luoyang City Hezhiyang Macromolecule Material Co., Ltd. |
|
| 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: 20130320 Termination date: 20170715 |