CN103183895A - Special material formula for trenchless modified polypropylene pipe - Google Patents
Special material formula for trenchless modified polypropylene pipe Download PDFInfo
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- CN103183895A CN103183895A CN2013100846631A CN201310084663A CN103183895A CN 103183895 A CN103183895 A CN 103183895A CN 2013100846631 A CN2013100846631 A CN 2013100846631A CN 201310084663 A CN201310084663 A CN 201310084663A CN 103183895 A CN103183895 A CN 103183895A
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Abstract
The invention relates to a special material formula for a trenchless modified polypropylene pipe. The pipe comprises components in parts by weight as follows: 40 parts to 70 parts of block copolymerized polypropylene, 10 parts to 50 parts of homo-polymerized polypropylene, 8 parts to 15 parts of wollastonite, 2 parts to 8 parts of a toughening agent, 0.2 part to 0.8 part of a coupling agent, 0.1 part to 0.5 part of a lubricating agent, 0.2 part to 0.8 part of an antioxidant and 0.1 part to 0.8 part of a nucleating agent. The special material formula for the trenchless modified polypropylene pipe can manufacture a material with high tensile strength, flexural modulus, Vicat temperature, heat conductivity coefficient and impact strength and good production stability.
Description
Technical field
The present invention relates to a kind of plastic pipe for industrial use formula of special material, relate in particular to a kind of non-excavation modified polypropylene pipes formula of special material.
Background technology
Electric power generally adopts the HDPE(high density polyethylene(HDPE) with non-excavation tubing at present) and the PP-B(block copolymerization polypropylene), these two kinds of materials are common general material, do not carry out modification targetedly, can not be applicable to the electric power service requirements of modified polypropylene pipes, have following shortcoming: HDPE tubing adopts common HDPE tube material to make, have following shortcoming: 1, vicat temperature is low, poor heat resistance, only about 80 ℃; 2, tensile strength is low, about 18MPa; 3, modulus in flexure is low, about 800MPa; 4, thermal conductivity is lower, is generally 0.23～0.25, is unfavorable for the raising of production rate, has increased production cost virtually; 5, processibility is relatively poor, easily produces sticking to mould, needs often to shut down cleaning.
PP-B tubing adopts common PP-B raw material to make, and therefore have following shortcoming: 1, modulus in flexure is low, is generally 900～1100MPa; 2, tensile strength is lower, is generally about 23MPa; 3, vicat temperature is relatively low, is generally 135 ℃; 4, thermal conductivity is lower, is generally 0.23～0.25, is unfavorable for the raising of production rate, has increased production cost virtually; 5, comprehensive cost is higher, because material self intensity is lower, so when article of manufacture, in order to ensure reaching service requirements, need be done product wall thickness thick, causes material and production cost to increase thus.
Summary of the invention
The technical problem to be solved in the present invention, be to provide a kind of produce have the tensile strength height, the non-excavation modified polypropylene pipes formula of special material of modulus in flexure height, vicat temperature height, thermal conductivity is higher, shock strength is high and production stability is good material.
The present invention is achieved in that a kind of non-excavation modified polypropylene pipes formula of special material, comprises following components in part by weight:
40～70 parts of block copolymerization polypropylenes;
10～50 parts of homo-polypropylene;
8～15 parts of wollastonites;
2～8 parts of toughner;
0.2～0.8 part of coupling agent;
0.1～0.5 part of lubricant;
0.2～0.8 part in oxidation inhibitor;
0.1～0.8 part of nucleator.
It is the tubing level powder of 0.3～0.6g/10min that described block copolymerization polypropylene adopts melt flow rate (MFR), and bending elastic modulus is more than 1000MPa, and-20 ℃ of shock strengths are more than 10kJ/m, and tensile strength is more than 23Mpa.
It is the powder of 0.5～1.5g/10min that described homo-polypropylene adopts melt flow rate (MFR), and bending elastic modulus is more than 1600MPa, and 23 ℃ of notched Izod impact strength are more than 12kJ/m, and tensile strength is more than 30Mpa.
Described wollastonite adopts the above silicone content of 2000 orders greater than 50% wollastonite.
Described toughner is POE or EPDM.
Described coupling agent adopts silane coupling agent.
Described lubricant adopts calcium stearate, zinc oxide or PE wax.
Described oxidation inhibitor employing 1010 and phosphorous acid ester compound system.
The production technique of above-mentioned non-excavation modified polypropylene pipes PP Pipe Compound is as follows:
A, wollastonite is carried out surface treatment: wollastonite, coupling agent are put into high-speed mixer be mixed to 100 ℃, discharge the contained moisture content of wollastonite;
B, block copolymerization polypropylene powder and homo-polypropylene powder, toughner, oxidation inhibitor, lubricant, nucleator are put into high-speed mixer together and mixed through the surface treatment wollastonite;
C, treat mixing of materials to 125 ℃ after, material put into lowly stirs machine and cool off, treat that temperature is down to below 60 ℃ can drop into tablets press, and finally make non-excavation modified polypropylene pipes PP Pipe Compound by dual-screw pelletizer.
The non-excavation modified polypropylene pipes of the present invention formula of special material has following advantage: the PP Pipe Compound that the present invention produces has following advantage: 1, modulus in flexure height can reach more than the 1500MPa; 2, tensile strength height can reach more than 28 MPa; 3, good heat resistance, vicat temperature can reach more than 150 ℃; 4, low-temperature performance is good, and the shock resistance destructiveness is good, and-20 ℃ of shock strengths can reach more than the 8kJ/m2; 5, thermal conductivity is good, and thermal conductivity can reach more than 0.38; 6, good processability is produced and is stablized, and can not export mould sizing phenomenon; 7, good economy performance, after carrying out the specific aim modification, every index of this material all reaches the requirement of non-excavation modified polypropylene pipes, has ignored some unpractical indexs, thereby better controlled production cost, cost is compared and is adopted common PP-B tube material to decrease; 8, social benefit is good, and this dedicated modified materials can substitute imported materials and items fully, has realized the production domesticization of this product, has reduced cost.
Embodiment
The present invention will be described in detail below in conjunction with specific embodiment.
A kind of non-excavation modified polypropylene pipes formula of special material of the present invention comprises following components in part by weight:
40～70 parts of block copolymerization polypropylenes;
10～50 parts of homo-polypropylene;
8～15 parts of wollastonites;
2～8 parts of toughner;
0.2～0.8 part of coupling agent;
0.1～0.5 part of lubricant;
0.2～0.8 part in oxidation inhibitor;
0.1～0.8 part of nucleator.
Described block copolymerization polypropylene powder is as the main base material of this formula materials, adopting melt flow rate (MFR) is the tubing level powder of 0.3～0.6g/10min, require bending elastic modulus more than 1000MPa ,-20 ℃ of shock strengths are more than 10kJ/m, and tensile strength is more than 23Mpa.
Described homo-polypropylene powder is as the auxiliary base material of this formula materials, arrange in pairs or groups each other with the block copolymerization polypropylene powder, adopting melt flow rate (MFR) is the powder of 0.5～1.5g/10min, require bending elastic modulus more than 1600MPa, 23 ℃ of notched Izod impact strength are more than 12kJ/m, and tensile strength is more than 30Mpa.
Described wollastonite is dispersed in the polypropylene base-material uniformly as toughener, promotes tensile strength, modulus in flexure, thermotolerance, thermal conductivity, the reduction material contracts rate of polypropylene material, adopts the above silicone content of 2000 orders greater than 50% wollastonite.
Described toughner plays shock proof effect, guarantees the low-temperature performance of material, in order to avoid material is because adding talcum powder and strengthen and after homo-polypropylene carried out modification, strong and unyielding property being unbalance, is generally POE or EPDM.
Described coupling agent has the reactive group that carries out combination with inorganics and organism, can improve the surface property of wollastonite, form coating film at the wollastonite head surface, making it can be compatible fully with polypropylene material, improve material dispersed and binding property, adopt silane coupling agent.
Described lubricant plays superpolymer improves each component dispersiveness, reduces equipment attrition in melting process effect, adopts calcium stearate, zinc oxide or PE wax etc.
Described oxidation inhibitor plays protecting materials or goods in the effect of being heated, being unlikely to degrade under the influence of oxygen, adopt 1010 with the phosphorous acid ester compound system.
The production technique of above-mentioned non-excavation modified polypropylene pipes PP Pipe Compound is as follows:
A, wollastonite is carried out surface treatment: wollastonite, coupling agent are put into high-speed mixer be mixed to 100 ℃, discharge the contained moisture content of wollastonite;
B, block copolymerization polypropylene powder and homo-polypropylene powder, toughner, oxidation inhibitor, lubricant, nucleator are put into high-speed mixer together and mixed through the surface treatment wollastonite;
C, treat mixing of materials to 125 ℃ after, material put into lowly stirs machine and cool off, treat that temperature is down to below 60 ℃ can drop into tablets press, and finally make non-excavation modified polypropylene pipes PP Pipe Compound by dual-screw pelletizer.
The concrete formulation Example one of the non-excavation modified polypropylene pipes of the present invention PP Pipe Compound is as follows:
65 parts of block copolymerization polypropylenes;
20 parts of homo-polypropylene;
10 parts of wollastonites;
3.8 parts of toughner;
0.2 part of coupling agent;
0.4 part of lubricant;
0.35 part in oxidation inhibitor;
0.25 part of nucleator.
The concrete formulation Example two of the non-excavation modified polypropylene pipes of the present invention PP Pipe Compound is as follows:
57 parts of block copolymerization polypropylenes;
25 parts of homo-polypropylene;
12 parts of wollastonites;
4.5 parts of toughner;
0.3 part of coupling agent;
0.5 part of lubricant;
0.4 part in oxidation inhibitor;
0.3 part of nucleator.
The concrete formulation Example three of the non-excavation modified polypropylene pipes of the present invention PP Pipe Compound is as follows:
48 parts of block copolymerization polypropylenes;
35 parts of homo-polypropylene;
10 parts of wollastonites;
5.5 parts of toughner;
0.3 part of coupling agent;
0.5 part of lubricant;
0.4 part in oxidation inhibitor;
0.3 part of nucleator.
The non-excavation modified polypropylene pipes of the present invention PP Pipe Compound has following advantage: 1, modulus in flexure height can reach more than the 1500MPa; 2, tensile strength height can reach more than 28 MPa; 3, good heat resistance, vicat temperature can reach more than 150 ℃; 4, low-temperature performance is good, and the shock resistance destructiveness is good, and-20 ℃ of shock strengths can reach more than the 8kJ/m2; 5, thermal conductivity is good, and thermal conductivity can reach more than 0.38; 6, good processability is produced and is stablized, and can not export mould sizing phenomenon; 7, good economy performance, after carrying out the specific aim modification, every index of this material all reaches the requirement of non-excavation modified polypropylene pipes, has ignored some unpractical indexs, thereby better controlled production cost, cost is compared and is adopted common PP-B tube material to decrease; 8, social benefit is good, and this dedicated modified materials can substitute imported materials and items fully, has realized the production domesticization of this product, has reduced cost.
Claims (9)
1. non-excavation modified polypropylene pipes formula of special material is characterized in that: comprise following components in part by weight:
40～70 parts of block copolymerization polypropylenes;
10～50 parts of homo-polypropylene;
8～15 parts of wollastonites;
2～8 parts of toughner;
0.2～0.8 part of coupling agent;
0.1～0.5 part of lubricant;
0.2～0.8 part in oxidation inhibitor;
0.1～0.8 part of nucleator.
2. non-excavation modified polypropylene pipes formula of special material according to claim 1, it is characterized in that: it is the tubing level powder of 0.3～0.6g/10min that described block copolymerization polypropylene adopts melt flow rate (MFR), bending elastic modulus is more than 1000MPa,-20 ℃ of shock strengths are more than 10kJ/m, and tensile strength is more than 23Mpa.
3. non-excavation modified polypropylene pipes formula of special material according to claim 1, it is characterized in that: it is the powder of 0.5～1.5g/10min that described homo-polypropylene adopts melt flow rate (MFR), bending elastic modulus is more than 1600MPa, 23 ℃ of notched Izod impact strength are more than 12kJ/m, and tensile strength is more than 30Mpa.
4. non-excavation modified polypropylene pipes formula of special material according to claim 1 is characterized in that: described wollastonite adopts the above silicone content of 2000 orders greater than 50% wollastonite.
5. non-excavation modified polypropylene pipes formula of special material according to claim 1, it is characterized in that: described toughner is POE or EPDM.
6. non-excavation modified polypropylene pipes formula of special material according to claim 1 is characterized in that: described coupling agent employing silane coupling agent.
7. non-excavation modified polypropylene pipes formula of special material according to claim 1 is characterized in that: described lubricant employing calcium stearate, zinc oxide or PE wax.
8. non-excavation modified polypropylene pipes formula of special material according to claim 1 is characterized in that: described oxidation inhibitor employing 1010 and phosphorous acid ester compound system.
9. non-excavation modified polypropylene pipes formula of special material according to claim 1, it is characterized in that: the production technique of above-mentioned non-excavation modified polypropylene pipes PP Pipe Compound is as follows:
A, wollastonite is carried out surface treatment: wollastonite, coupling agent are put into high-speed mixer be mixed to 100 ℃, discharge the contained moisture content of wollastonite;
B, block copolymerization polypropylene powder and homo-polypropylene powder, toughner, oxidation inhibitor, lubricant, nucleator are put into high-speed mixer together and mixed through the surface treatment wollastonite;
C, treat mixing of materials to 125 ℃ after, material put into lowly stirs machine and cool off, treat that temperature is down to below 60 ℃ can drop into tablets press, and finally make non-excavation modified polypropylene pipes PP Pipe Compound by dual-screw pelletizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013100846631A CN103183895A (en) | 2013-03-18 | 2013-03-18 | Special material formula for trenchless modified polypropylene pipe |
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| CN2013100846631A CN103183895A (en) | 2013-03-18 | 2013-03-18 | Special material formula for trenchless modified polypropylene pipe |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103421267A (en) * | 2013-07-19 | 2013-12-04 | 福建恒盛管业有限公司 | Trenchless modified polypropylene pipe material for electric power |
| CN104788812A (en) * | 2015-03-31 | 2015-07-22 | 苏州市鼎立包装有限公司 | High-strength PP packaging bag and preparation method thereof |
| CN105017656A (en) * | 2015-09-01 | 2015-11-04 | 绿园宝业（北京）贸易有限公司 | Special organic anion intercalated hydrotalcite/regenerated polypropylene pipeline corrosion prevention material and preparation method thereof |
| CN105061891A (en) * | 2015-08-10 | 2015-11-18 | 杭州鑫璐实业有限公司 | Trenchless polypropylene cable protective pipeline and preparation method therefor |
| CN106700230A (en) * | 2015-11-15 | 2017-05-24 | 合肥杰事杰新材料股份有限公司 | Polypropylene composition and preparation method thereof |
| CN107189318A (en) * | 2017-07-05 | 2017-09-22 | 湖北金牛管业有限公司 | A kind of power cable sheath special material for pipeline and preparation method thereof |
| CN107686599A (en) * | 2017-09-16 | 2018-02-13 | 常州富思通管道有限公司 | A kind of PPR pipe |
| CN107987379A (en) * | 2017-11-27 | 2018-05-04 | 德阳天赐塑胶有限责任公司 | A kind of modified environmental protection PP pipe and its preparation process |
| CN108222219A (en) * | 2017-12-30 | 2018-06-29 | 广州爱奇实业有限公司 | Flat tube, drainage system and composite material |
| CN108462123A (en) * | 2018-01-16 | 2018-08-28 | 杭州恒信电气有限公司 | A kind of no-dig technique electric power pipeline |
| CN111454532A (en) * | 2020-05-26 | 2020-07-28 | 江苏瀚能电气有限公司 | Special material for modified polypropylene cable protection pipe |
| CN113831641A (en) * | 2021-09-26 | 2021-12-24 | 上海日之升科技有限公司 | Polypropylene material composite material with low linear expansion coefficient and high surface hardness and preparation method thereof |
| CN114591565A (en) * | 2020-12-07 | 2022-06-07 | 佛山市顺德区美的电热电器制造有限公司 | Composite material and preparation method thereof, plastic product and electric appliance |
| CN115323526A (en) * | 2022-09-02 | 2022-11-11 | 漳州瑞泉网业制造有限公司 | High-strength polyethylene fishing net fiber and preparation method thereof |
| CN116006789A (en) * | 2023-01-09 | 2023-04-25 | 康命源（贵州）科技发展有限公司 | High-strength and high-toughness polyolefin pipe and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102675729A (en) * | 2011-03-07 | 2012-09-19 | 福建亚通新材料科技股份有限公司 | Non-excavating enhanced and modified polypropylene draining pipe |
-
2013
- 2013-03-18 CN CN2013100846631A patent/CN103183895A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102675729A (en) * | 2011-03-07 | 2012-09-19 | 福建亚通新材料科技股份有限公司 | Non-excavating enhanced and modified polypropylene draining pipe |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103421267A (en) * | 2013-07-19 | 2013-12-04 | 福建恒盛管业有限公司 | Trenchless modified polypropylene pipe material for electric power |
| CN104788812A (en) * | 2015-03-31 | 2015-07-22 | 苏州市鼎立包装有限公司 | High-strength PP packaging bag and preparation method thereof |
| CN105061891A (en) * | 2015-08-10 | 2015-11-18 | 杭州鑫璐实业有限公司 | Trenchless polypropylene cable protective pipeline and preparation method therefor |
| CN105017656A (en) * | 2015-09-01 | 2015-11-04 | 绿园宝业（北京）贸易有限公司 | Special organic anion intercalated hydrotalcite/regenerated polypropylene pipeline corrosion prevention material and preparation method thereof |
| CN106700230A (en) * | 2015-11-15 | 2017-05-24 | 合肥杰事杰新材料股份有限公司 | Polypropylene composition and preparation method thereof |
| CN107189318A (en) * | 2017-07-05 | 2017-09-22 | 湖北金牛管业有限公司 | A kind of power cable sheath special material for pipeline and preparation method thereof |
| CN107686599A (en) * | 2017-09-16 | 2018-02-13 | 常州富思通管道有限公司 | A kind of PPR pipe |
| CN107987379A (en) * | 2017-11-27 | 2018-05-04 | 德阳天赐塑胶有限责任公司 | A kind of modified environmental protection PP pipe and its preparation process |
| CN108222219A (en) * | 2017-12-30 | 2018-06-29 | 广州爱奇实业有限公司 | Flat tube, drainage system and composite material |
| CN108222219B (en) * | 2017-12-30 | 2024-04-09 | 广州爱奇实业有限公司 | Flat pipe, drainage system and composite material |
| CN108462123A (en) * | 2018-01-16 | 2018-08-28 | 杭州恒信电气有限公司 | A kind of no-dig technique electric power pipeline |
| CN111454532A (en) * | 2020-05-26 | 2020-07-28 | 江苏瀚能电气有限公司 | Special material for modified polypropylene cable protection pipe |
| CN111454532B (en) * | 2020-05-26 | 2022-07-12 | 江苏瀚能电气有限公司 | Special material for modified polypropylene cable protection pipe |
| CN114591565A (en) * | 2020-12-07 | 2022-06-07 | 佛山市顺德区美的电热电器制造有限公司 | Composite material and preparation method thereof, plastic product and electric appliance |
| CN114591565B (en) * | 2020-12-07 | 2023-12-19 | 佛山市顺德区美的电热电器制造有限公司 | Composite material, preparation method thereof, plastic product and electric appliance |
| CN113831641A (en) * | 2021-09-26 | 2021-12-24 | 上海日之升科技有限公司 | Polypropylene material composite material with low linear expansion coefficient and high surface hardness and preparation method thereof |
| CN115323526A (en) * | 2022-09-02 | 2022-11-11 | 漳州瑞泉网业制造有限公司 | High-strength polyethylene fishing net fiber and preparation method thereof |
| CN115323526B (en) * | 2022-09-02 | 2023-09-19 | 漳州瑞泉网业制造有限公司 | High-strength polyethylene fishing net fiber and preparation method thereof |
| CN116006789A (en) * | 2023-01-09 | 2023-04-25 | 康命源（贵州）科技发展有限公司 | High-strength and high-toughness polyolefin pipe and preparation method thereof |
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Application publication date: 20130703 |
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