CN102766289A - Formula for toughening and enhancing outer wall of high-density polyethylene (HDPE) pipe - Google Patents
Formula for toughening and enhancing outer wall of high-density polyethylene (HDPE) pipe Download PDFInfo
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- CN102766289A CN102766289A CN2012102268260A CN201210226826A CN102766289A CN 102766289 A CN102766289 A CN 102766289A CN 2012102268260 A CN2012102268260 A CN 2012102268260A CN 201210226826 A CN201210226826 A CN 201210226826A CN 102766289 A CN102766289 A CN 102766289A
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Abstract
The invention provides a formula for toughening and enhancing the outer wall of a high-density polyethylene (HDPE) pipe. The formula consists of the following substances in part by weight: 70 to 90 parts of HDPE reclaimed materials, 5 to 20 parts of glass fibers, 5 to 15 parts of elastomer, 0.02 to 0.04 part of coupling agent, 0.2 to 0.3 part of antioxidant and 0.02 to 0.06 part of toner. According to the formula for toughening and enhancing the outer wall of the HDPE pipe, the glass fibers are added to enhance the tensile strength of the HDPE reclaimed materials, the elastomer which has high compatibility with HDPE is added to improve the breaking elongation of the HDPE reclaimed materials, and the impact strength of the machined pipe is improved, so that the mechanical property of the pipe is improved comprehensively, and particularly, the annular stiffness of the HDPE pipe is improved; and the crushing condition at a flaring is improved well, a production process is simple, the production cost is reduced, and the HDPE pipe is difficult to deform after being formed.
Description
Technical field
The present invention relates to the plastic pipe technology, the toughness reinforcing enhancing prescription of particularly a kind of HDPE outer pipe wall.
Background technology
Present HDPE tubing all is with the reworked material extrusion moulding of HDPE basically.Owing to be reworked material, passed through once or once above processing, so after the moulding, some mechanical properties of tubing are stable inadequately, or do not reach standard.Its shortcoming mainly shows two aspects: 1. the tubing ring stiffness does not reach requirement, and ring stiffness is with the topmost performance index of water shoot with burying; 2. tubing enlarging place is broken easily, and the broken posterior restoration tubing of enlarging place has just been scrapped.If use the raw material extrusion moulding instead, each item mechanical property can reach standard, and more stable; But the cost of buying material can significantly increase, and reworked material can not get abundant use simultaneously, causes certain waste; Do not meet the demand of process economy, make enterprise be difficult to bear.
Summary of the invention
In order to overcome the deficiency of prior art; The present invention provides a kind of HDPE outer pipe wall toughness reinforcing enhancing prescription, in prescription, adds the tensile strength that spun glass strengthens the HDPE reworked material, and adding with HDPE has the elastomerics of better consistency to improve the elongation at break of HDPE reworked material; After processing treatment, improve the tubing ring stiffness; Broken situation to enlarging place has good improvement simultaneously, and production cost reduces, and flexible type not after the moulding.
The technical solution adopted for the present invention to solve the technical problems is: the toughness reinforcing enhancing prescription of a kind of HDPE outer pipe wall, and prescription is made up of by following parts by weight proportioning following several kinds of materials:
HDPE reworked material 70-90 part
Spun glass 5-20 part
Elastomerics 5-15 part
Coupling agent 0.02-0.04 part
Oxidation inhibitor 0.2-0.3 part
Toner 0.02-0.06 part.
The present invention carries out surface treatment with coupling agent to spun glass earlier, is used to strengthen the tensile strength of HDPE reworked material.It is that elongation at break with loss HDPE reworked material is a cost that yet spun glass strengthens the tensile strength of HDPE reworked material.In order to improve the elongation at break of HDPE reworked material; In this prescription, add the elastomerics that better consistency is arranged with the HDPE reworked material; Can play the effect that causes and stop crazing after adding elastomerics, and absorb significant amount of energy, so shock strength is improved.Add oxidation inhibitor and toner, when ring stiffness increased substantially, the broken situation of enlarging place also had good improvement through the tubing of gained after the processing treatment.
In an embodiment of the invention, said HDPE reworked material is a waste or used plastics, such as depleted hair washing glue bottle, can effectively reduce production costs, and preferred, said HDPE reworked material is 74-78 part, for example 75 parts.
In an embodiment of the invention, said spun glass is the alkali-free short glass fiber, is used to strengthen the tensile strength of HDPE reworked material, preferred 13-15 part, for example 15 parts.
In an embodiment of the invention, said elastomerics is maleic anhydride graft POE (M-POE), with HDPE better consistency is arranged, and is used to improve the elongation at break of HDPE reworked material, preferred 10-12 part, for example 10 parts.
In an embodiment of the invention, said coupling agent is a silane coupling agent, is used for the surface treatment of spun glass; Improve the interface interaction between spun glass and the HDPE reworked material; Thereby improve performance of composites greatly, preferred 0.02-0.03 part, for example 0.03 part.
In an embodiment of the invention, said oxidation inhibitor is antioxidant 1010, can effectively suppress or delay the thermooxidizing in air of HDPE reworked material, preferred 0.25 part.
In an embodiment of the invention, said toner is a carbon black, is used for the product quality, preferred 0.04-0.05 part, for example 0.05 part.
Among the present invention, said spun glass is used earlier the coupling agent activation treatment.Spun glass after the activated processing and HDPE reworked material, elastomerics, oxidation inhibitor, toner mix after the twin screw extruder extruding pelletization.Said granulation is after the extrusion moulding of tubing extrusion equipment.
The invention has the beneficial effects as follows: the toughness reinforcing enhancing prescription of a kind of HDPE outer pipe wall provided by the invention; In prescription, add the tensile strength that spun glass strengthens the HDPE reworked material, adding with HDPE has the elastomerics of better consistency to improve the elongation at break of HDPE reworked material, after processing treatment, improves the tubing shock strength; Thereby comprehensively improve the mechanical property of tubing; Especially improve the ring stiffness of HDPE tubing, the broken situation to enlarging place has good improvement simultaneously, and production technique is simple; Production cost reduces, and flexible type not after the moulding.
Embodiment
The toughness reinforcing enhancing prescription of a kind of HDPE outer pipe wall provided by the invention, prescription is made up of by certainweight umber proportioning following several kinds of materials: HDPE reworked material, spun glass, elastomerics, coupling agent, oxidation inhibitor, toner.
The present invention carries out surface treatment with coupling agent to spun glass earlier, is used to strengthen the tensile strength of HDPE reworked material.It is that elongation at break with loss HDPE reworked material is a cost that yet spun glass strengthens the tensile strength of HDPE reworked material.In order to improve the elongation at break of HDPE reworked material; In this prescription, add the elastomerics that better consistency is arranged with the HDPE reworked material; Can play the effect that causes and stop crazing after adding elastomerics, and absorb significant amount of energy, so shock strength is improved.Add oxidation inhibitor and toner, when ring stiffness increased substantially, the broken situation of enlarging place also had good improvement through the tubing of gained after the processing treatment.
Said HDPE reworked material is a waste or used plastics, selects depleted hair washing glue bottle in the present embodiment for use, can effectively reduce production costs.
Said spun glass is the alkali-free short glass fiber, is used to strengthen the tensile strength of HDPE reworked material.
Said elastomerics is maleic anhydride graft POE (M-POE), with HDPE better consistency is arranged, and is used to improve the elongation at break of HDPE reworked material.
Said coupling agent is a silane coupling agent, is used for the surface treatment of spun glass, improves the interface interaction between spun glass and the HDPE reworked material, thereby improves performance of composites greatly.
Said oxidation inhibitor is antioxidant 1010, can effectively suppress or delay the thermooxidizing in air of HDPE reworked material.
Said toner is a carbon black, is used for the product quality.
Following table is the several specific embodiments that the present invention relates to:
Following table is to go up the mechanical property of the several specific embodiment gained tubing of table:
| ? | Ring stiffness (KN/m 2） | Tensile strength (MPa) | Tensile elongation (%) | Shock strength (J/m) |
| 1 | 3.85 | 19.2 | 19.5 | 120.0 |
| 2 | 4.24 | 20.9 | 21.2 | 175.2 |
| 3 | 4.25 | 21.1 | 21.3 | 175.4 |
| 4 | 4.43 | 24.3 | 23.5 | 190.8 |
| 5 | 4.87 | 30.5 | 24.0 | 215.6 |
| 6 | 4.75 | 29.8 | 24.4 | 220.7 |
| 7 | 4.62 | 29.1 | 24.6 | 223.8 |
Here need to prove; Comparative Examples 1 does not belong to prescription of the present invention; Here list is in order to give prominence to beneficial effect of the present invention through contrast; Embodiments of the invention are not limited only to embodiment 2-7 simultaneously, do certain adjustment by prescription as the case may be such as each material weight umber, and perhaps spun glass, elastomerics, coupling agent, oxidation inhibitor, toner can use other materials of the same type.
The technical process of a kind of HDPE tubing that the present invention produces is following:
1. preparation material: with each material by the described parts by weight weighing of prescription;
2. fiberglass surfacing is carried out activation treatment: spun glass is added in the stirrer, stop when being stirred to 80 ℃ stirring; Add coupling agent, stirring at low speed 4min, high-speed stirring 2min;
3. HDPE reworked material, elastomerics, oxidation inhibitor, toner are added in the stirrer, stir;
4. through the twin screw extruder extruding pelletization, become the HDPE modified particles;
5. through the extrusion moulding of tubing extrusion equipment.
More than be merely the preferred embodiments of the present invention, but design concept of the present invention is not limited thereto, allly utilizes this design, also all fall within protection scope of the present invention the insubstantial modifications that the present invention makes.
Claims (10)
1. the toughness reinforcing enhancing prescription of HDPE outer pipe wall is characterized in that, prescription is made up of by following parts by weight proportioning following several kinds of materials:
HDPE reworked material 70-90 part
Spun glass 5-20 part
Elastomerics 5-15 part
Coupling agent 0.02-0.04 part
Oxidation inhibitor 0.2-0.3 part
Toner 0.02-0.06 part.
2. the toughness reinforcing enhancing prescription of a kind of HDPE outer pipe wall according to claim 1 is characterized in that said HDPE reworked material is a waste or used plastics.
3. the toughness reinforcing enhancing prescription of a kind of HDPE outer pipe wall according to claim 1 is characterized in that said spun glass is the alkali-free short glass fiber.
4. the toughness reinforcing enhancing prescription of a kind of HDPE outer pipe wall according to claim 1 is characterized in that said elastomerics is maleic anhydride graft POE.
5. the toughness reinforcing enhancing prescription of a kind of HDPE outer pipe wall according to claim 1 is characterized in that said coupling agent is a silane coupling agent.
6. the toughness reinforcing enhancing prescription of a kind of HDPE outer pipe wall according to claim 1 is characterized in that said oxidation inhibitor is antioxidant 1010.
7. the toughness reinforcing enhancing prescription of a kind of HDPE outer pipe wall according to claim 1 is characterized in that said toner is a carbon black.
8. according to the toughness reinforcing enhancing prescription of each described a kind of HDPE outer pipe wall of claim 1 to 7, it is characterized in that said spun glass is used earlier the coupling agent activation treatment.
9. the toughness reinforcing enhancing prescription of a kind of HDPE outer pipe wall according to claim 8 is characterized in that the spun glass after the said activated processing and HDPE reworked material, elastomerics, oxidation inhibitor, toner mix after the twin screw extruder extruding pelletization.
10. the toughness reinforcing enhancing prescription of a kind of HDPE outer pipe wall according to claim 9 is characterized in that said granulation is through the extrusion moulding of tubing extrusion equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102268260A CN102766289A (en) | 2012-07-03 | 2012-07-03 | Formula for toughening and enhancing outer wall of high-density polyethylene (HDPE) pipe |
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| CN2012102268260A CN102766289A (en) | 2012-07-03 | 2012-07-03 | Formula for toughening and enhancing outer wall of high-density polyethylene (HDPE) pipe |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342849A (en) * | 2013-07-24 | 2013-10-09 | 黑龙江省化工研究院 | Modified polyethylene material for preventing and curing soil loss |
| CN103819793A (en) * | 2014-02-13 | 2014-05-28 | 福建师范大学 | Method for preparing high-impact-resisting high-strength high-capacity hollow plastic bucket |
| CN103982713A (en) * | 2014-05-09 | 2014-08-13 | 南安市华益塑胶制造有限公司 | Double-wall corrugated pipe modified by waste HDPE (high-density polyethylene) and manufacturing process of double-wall corrugated pipe |
| CN104497384A (en) * | 2014-04-02 | 2015-04-08 | 瑞金市金和塑业发展有限公司 | HDPE weak current protective sleeve pipe |
| CN112080057A (en) * | 2020-09-17 | 2020-12-15 | 江西龙正科技发展有限公司 | Polyethylene sewage discharge pipe and preparation method thereof |
| CN116333404A (en) * | 2023-04-03 | 2023-06-27 | 广东新力通实业有限公司 | High-strength anti-collision HDPE cable protection pipe and preparation method thereof |
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| CN1657562A (en) * | 2004-12-07 | 2005-08-24 | 青岛科技大学 | Special material for large-diameter plastic draining pipe |
| CN102276925A (en) * | 2011-06-29 | 2011-12-14 | 广州市聚赛龙工程塑料有限公司 | Special material for automobile bumper produced from recovered polyethylene (PE)/polyamide (PA) composite film material and preparation method thereof |
| CN102276897A (en) * | 2011-06-29 | 2011-12-14 | 广州市聚赛龙工程塑料有限公司 | Polyethylene/nylon alloy composite material and preparation method thereof |
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2012
- 2012-07-03 CN CN2012102268260A patent/CN102766289A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1657562A (en) * | 2004-12-07 | 2005-08-24 | 青岛科技大学 | Special material for large-diameter plastic draining pipe |
| CN102276925A (en) * | 2011-06-29 | 2011-12-14 | 广州市聚赛龙工程塑料有限公司 | Special material for automobile bumper produced from recovered polyethylene (PE)/polyamide (PA) composite film material and preparation method thereof |
| CN102276897A (en) * | 2011-06-29 | 2011-12-14 | 广州市聚赛龙工程塑料有限公司 | Polyethylene/nylon alloy composite material and preparation method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342849A (en) * | 2013-07-24 | 2013-10-09 | 黑龙江省化工研究院 | Modified polyethylene material for preventing and curing soil loss |
| CN103342849B (en) * | 2013-07-24 | 2015-06-03 | 黑龙江省化工研究院 | Modified polyethylene material for preventing and curing soil loss |
| CN103819793A (en) * | 2014-02-13 | 2014-05-28 | 福建师范大学 | Method for preparing high-impact-resisting high-strength high-capacity hollow plastic bucket |
| CN104497384A (en) * | 2014-04-02 | 2015-04-08 | 瑞金市金和塑业发展有限公司 | HDPE weak current protective sleeve pipe |
| CN103982713A (en) * | 2014-05-09 | 2014-08-13 | 南安市华益塑胶制造有限公司 | Double-wall corrugated pipe modified by waste HDPE (high-density polyethylene) and manufacturing process of double-wall corrugated pipe |
| CN103982713B (en) * | 2014-05-09 | 2016-03-30 | 南安市华益塑胶制造有限公司 | A kind of manufacture craft utilizing waste HDPE modification double-wall corrugated pipe |
| CN112080057A (en) * | 2020-09-17 | 2020-12-15 | 江西龙正科技发展有限公司 | Polyethylene sewage discharge pipe and preparation method thereof |
| CN116333404A (en) * | 2023-04-03 | 2023-06-27 | 广东新力通实业有限公司 | High-strength anti-collision HDPE cable protection pipe and preparation method thereof |
| CN116333404B (en) * | 2023-04-03 | 2024-01-26 | 广东新力通实业有限公司 | High-strength anti-collision HDPE cable protection pipe and preparation method thereof |
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Application publication date: 20121107 |