CN1252169C - Composite for preparing polyethylene tube and method for preparing the same - Google Patents
Composite for preparing polyethylene tube and method for preparing the same Download PDFInfo
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- CN1252169C CN1252169C CN 200310106223 CN200310106223A CN1252169C CN 1252169 C CN1252169 C CN 1252169C CN 200310106223 CN200310106223 CN 200310106223 CN 200310106223 A CN200310106223 A CN 200310106223A CN 1252169 C CN1252169 C CN 1252169C
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Abstract
The present invention relates to a composite material for preparing a polyethylene tube material, which is characterized in that the main components of the composite material comprise inorganic filler, basal resin and a modifying agent. The composite material has the components according to the weight percentage: 30.3 to 92% of inorganic filler, 0.3 to 2% of modifying agent and 8 to 69.7% of basal resin, wherein the inorganic filler is prepared from hollow microspheres, spun glass, mica, superfine calcium carbonate, spun glass/mica, spun glass/superfine calcium carbonate, mica/superfine calcium carbonate or spun glass/mica/superfine calcium carbonate. The hollow microsphere is extracted from fly ash, and the particle diameter of the hollow microsphere is from 3 to 10 mu m. The modifying agent is a coupling agent prepared from titanate, aluminate ester, titanate/aluminate ester or silane. The basal resin is high-density polyethylene. The present invention also relates to a method for manufacturing the composite material. The composite material not only can improve the annular rigidity, but also can reduce the cost. Thereby, the composite material has wide application prospects.
Description
One, technical field:
The present invention relates to a kind of matrix material, especially a kind of matrix material of preparing polyvinyl piping materials and preparation method thereof that is used to.
Two, technical background:
Along with the continuous expansion and the intense market competition of polyvinyl piping materials Application Areas, producing the tubing that meets the demands as how lower cost becomes the major objective that each producer chases.The advantage that the filling-modified used matrix material of polyethylene is strong with its anti-flame retardant resistance, shock resistance is good, become that the material products shrinking percentage is little, raw materials cost is low etc. becomes the first-selection of each producer.In existing matrix material, ubiquity density height, low, the anti-different climatope of shock resistance and high temperature resistant, low temperature and is contained many shortcomings such as the chemical mediator environment is relatively poor and be difficult to extensively be suitable for.How to make the advantage that employed mineral filler in the composite system can comprehensive various fillers (anti-flame retardant resistance, the rigidity as excellence is big, shock resistance etc.) discard its bad performance, simultaneously can be compatible in same inorganic system, the complementary characteristic combines them on the function to reach; Can make each phase morphology in the filler systems (as strip, sheet, ball-type and other irregular how much external forms etc.) obtain replenishing uniformly again, remedy the some shortcomings of polyvinyl piping materials PP Pipe Compound, both can be in performances such as the intensity that strengthens goods, toughness, chemical stability, do not cut down some original excellent properties of polyethylene again, the cost that can reduce polyethylene products simultaneously again becomes the main at present filling-modified direction with matrix material of polyethylene of developing.
Three, technology contents:
What the object of the present invention is to provide a kind of cost that is used to improve polyvinyl piping materials toughness and ring stiffness, reduction tubing goods is used to matrix material for preparing polyvinyl piping materials and preparation method thereof.
Summary of the invention: a kind of matrix material that is used to prepare polyvinyl piping materials, the major ingredient that it is characterized in that matrix material is mineral filler, matrix resin and properties-correcting agent, the weight percent of its each composition is: inorganic filler content is 30.3-92%, modifier content is 0.3-2%, matrix resin content is 8-69.7%, and wherein the content summation of each composition is 100%; Wherein mineral filler is made up of cenosphere and glass fibre, mica, calcium carbonate superfine powder, glass fibre/mica, glass fibre/calcium carbonate superfine powder, mica/calcium carbonate superfine powder or glass fibre/mica/calcium carbonate superfine powder, cenosphere is to extract from flyash, and its particle diameter is at 3～10 μ m; Properties-correcting agent is titanic acid ester, aluminic acid ester, titanic acid ester/aluminic acid ester or silane coupling agent; Matrix resin is a high density polyethylene(HDPE).
The purpose that properties-correcting agent uses is to make between filler grain and the polyethylene tube material more effectively to combine.Mineral filler is through after the modification, cover one deck organic membrane at filling surface, make filler grain surface polarity and polyethylene surface polar phase seemingly, mineral filler is merged in organic matrix more fully, improve the loading level of mineral filler, the poly usage quantity of corresponding minimizing reaches the purpose that reduces cost, and makes modifying material have certain toughness reinforcing enhancement simultaneously.
Matrix resin selects for use high density polyethylene(HDPE) to be because matrix resin must have poly versatility, and making has good consistency between the matrix material prepare and the selected high density polyethylene(HDPE).
In order to increase the oilness of composite system, can in matrix material, add lubricant, add-on is the 0.1-0.2 weight % of matrix material total amount; In addition, according to the use occasion of tubing, also can add auxiliary addition agent, as toughner, dispersion agent, static inhibitor, organic fire-retardant, oxidation inhibitor, in the expanding material one or more, to satisfy the specific demand of tubing, add-on is the 0.1-0.4 weight % of matrix material total amount.
A kind of production method that is used for the matrix material of polyvinyl piping materials, this method comprises the steps:
(1), get mineral filler and matrix resin is dried processing respectively in drying machine, make moisture content less than 1%, standby;
(2), cenosphere was put into the first stirring at low speed 2-4 of high-speed mixer minute, in the process that stirs, properties-correcting agent is added in the high-speed mixer, high-speed stirring 5-10min afterwards, whipping temp is at 80-105 ℃;
(3), again the matrix resin of getting dry for standby is put into high-speed mixer, and material stirs 5-10min in bucket, makes compound;
(4), compound is put in the twin screw extruder, melt extrude, pelletizing prepares matrix material.
When being metatitanic acid fat or aluminic acid lipoprotein coupling agent, properties-correcting agent can add after with 1: 1 dilution proportion with ethanol or white oil; Properties-correcting agent can be to add after the hydrolysis under the scope of 4-9 at pH value during for silane coupling agent.
Matrix material of the present invention is that its intensity and toughness all increase, and is anti-fire-retardant and ageing-resistant effective, brittle rupture can not take place under the normal temperature, good fluidity, the product size of becoming a useful person stability height with the advantage that existing polythene material is compared.It is a kind of matrix material that can be widely used in field of plastic products.
Four, embodiment:
Further describe and understand the present invention from embodiment below, but be not limited to for embodiment.
Among the embodiment used cenosphere for the particle diameter that from flyash, extract at 4～6 μ m, become to be grouped into cenosphere as table 1.
Table 1
| Chemical ingredients | SiO 2 | Al 2O 3 | Fe 2O 3 | TiO 2 | MgO | CaO | K 2O | LOSS |
| Content, % | ＞55 | ＞31 | ＜3 | ＞1.1 | ＞1 | ＞2 | ＞1 | ＜1 |
Example 1
(1), the high density polyethylene(HDPE) of getting cenosphere 75.5kg, glass fibre 12.5kg, mica 12.5kg and 23.7kg dries processing respectively in drying machine, make moisture content less than 1%;
(2), get (1) hollow core microballon, glass fibre, mica and put into the first stirring at low speed of high-speed mixer GHR 2 minutes, in the process that stirs, 0.8kg silane resin acceptor kh-550 (Υ-aminopropyl triethoxysilane) added (coupling agent adopts high pressure spray nozzle to spray) in the high-speed mixer, high-speed stirring 7min afterwards, whipping temp is at 90-105 ℃;
(3), get (1) middle-high density polyethylene again and put into high-speed mixer, material stirs 8min in bucket;
(4), the compound that obtains is put in the twin screw extruder of TE-65, melt extrude, pelletizing prepares matrix material.
Its composition of the matrix material that makes is mineral filler 80.4%, matrix resin (high density polyethylene(HDPE)) 18.96%, silane coupling agent 0.64%.
To press 1: 1 mixed by embodiment 1 prepared matrix material and high density polyethylene(HDPE) respectively, with the injection moulding in the CJ80M3V injection moulding machine respectively of mixed pellet, obtain inorganic filler content and be respectively 20%, 25% series of standards batten, through every Performance Detection, its test result is as shown in table 2
Table 2
| Filler content, % | Tensile strength, MPa | Elongation at break, % | Bending strength, MPa | Modulus in flexure, MPa |
| 20 | 22.37 | 1000 | 25.18 | 1595 |
| 25 | 21.69 | 580 | 24.94 | 1579 |
Example 2
(1), get cenosphere 75.3kg, the high density polyethylene(HDPE) of glass fibre 12.5kg, mica 12.5kg and 22.7kg is dried processing respectively in drying machine, make moisture content less than 1%;
(2), get (1) hollow core microballon, glass fibre, mica and put into the first stirring at low speed of high-speed mixer GHR 2 minutes, in the process that stirs, add the EBS (the two stearic acid amides of ethylene) of 0.2kg, the aluminium phthalein composite coupler of 1.8kg in the high-speed mixer sequentially, high-speed stirring 8min afterwards, whipping temp is at 90-105 ℃;
(3), get (1) middle-high density polyethylene again and put into high-speed mixer, material stirs 8min in bucket;
(4), the compound that obtains is put in the twin screw extruder of TE-65, melt extrude, pelletizing prepares matrix material.
Its composition of the matrix material of making is mineral filler 80.24%, matrix resin (high density polyethylene(HDPE)) 18.16%, aluminium titanium composite coupler 1.44%, other auxiliary agents 0.16%.
To press 1: 1 mixed by embodiment 2 prepared matrix materials and high density polyethylene(HDPE) respectively, with the injection moulding in the CJ80M3V injection moulding machine respectively of mixed pellet, obtain inorganic filler content and be respectively 20%, 25% series of standards batten, through every Performance Detection, its test result is as shown in table 3:
Table 3
| Filler content, % | Tensile strength, MPa | Elongation at break, % | Bending strength, MPa | Modulus in flexure, MPa |
| 20 | 21.35 | 950 | 24.59 | 1389 |
| 25 | 21.43 | 460 | 23.84 | 1351 |
Example 3,
(1), get cenosphere 75kg, glass fibre 12.5kg, mica 12.5kg and 22.7 high density polyethylene(HDPE) are dried processing respectively in drying machine, make moisture content less than 1%;
(2), get (1) hollow core microballon, glass fibre, mica and put into the first stirring at low speed of high-speed mixer GHR 2 minutes, in the process that stirs with the phthalate ester coupling agent CT-114[isopropyl tri (dioctylpyrophosphato)titanate of EBS, the 1.8kg of 0.2kg] and the antimonous oxide of 0.3kg add (coupling agent adopts the high pressure spray nozzle sprinkling) in the high-speed mixer sequentially, high-speed stirring 8min afterwards, whipping temp is at 90-105 ℃; Wherein phthalate ester coupling agent CT-114 puts into beaker earlier, and the white oil of measuring 1.8kg is more slowly poured in the beaker that coupling agent CT-114 is housed, and stirs with glass stick;
(3), get (1) middle-high density polyethylene again and put into high-speed mixer, material stirs 8min in bucket;
(4), the compound that obtains is put in the twin screw extruder of TE-65, melt extrude, pelletizing prepares matrix material.
Its composition of the matrix material that makes is mineral filler 80%, matrix resin (high density polyethylene(HDPE)) 18.16%, titanate coupling agent 1.44%, other auxiliary agents 0.4%.
To mix by 1: 15,1: 7,1: 13/3,1: 3,1: 9/5,1: 5/3 respectively with high density polyethylene(HDPE) by embodiment 3 prepared matrix materials, with the injection moulding in the CJ80M3V injection moulding machine respectively of mixed pellet, obtain inorganic filler content and be respectively 5%, 10%, 15%, 20%, 25%, 30% series of standards batten, through every Performance Detection, its test result is as shown in table 4:
Table 4
| Performance | Pure HDPE | 5% filler | 10% filler | 15% filler | 20% filler | 25% filler | 30% filler |
| Tensile strength, Mpa | 23.32 | 22.86 | 22.56 | 21.80 | 21.67 | 21.07 | 10.06 |
| Elongation at break, % | 500 | 642 | 675 | 790 | 543 | 493 | 483 |
| Bending strength, Mpa | 19.85 | 20.43 | 20.82 | 20.9 | 20.99 | 21.4 | 22.3 |
| Modulus in flexure, Mpa | 1270 | 1304 | 1330 | 1336 | 1342 | 1368 | 1425 |
| Shock strength, KJ/M 2 | 47.9 | 48.2 | 48.9 | 49.7 | 50.9 | 51.2 | 49.1 |
| Shore hardness | 47.91 | 48.25 | 48.75 | 50.2 | 50.33 | 50.9 | 51.69 |
| Horizontal firing speed, mm/min | 25.5 | 24.8 | 22.1 | 21.9 | 21.8 | 20.5 | 20.2 |
| Size changing rate, % | 1.34 | 1.33 | 1.25 | 0.76 | 0.68 | 0.49 | 0.24 |
Application example
Get each 100kg of matrix material of example 1, example 2 and example 3, mix with the high density polyethylene(HDPE) of 300kg respectively, making diameter is the winding tube of 1000mm, and its leading indicator is compared as shown in table 5 with pure high-density polytene winding pipe.
Table 5
| Ring stiffness, KPa | The low temperature brittleness temperature | Oxidation induction period, min | Unit/rice | This amplitude of falling, % | |
| Pure PE | 8.4 | Not disconnected | ＞20min | 462 | |
| Example 1 | 10.1 | Not disconnected | ＞20min | 425 | 8.0 |
| Example 2 | 9.3 | Not disconnected | ＞20min | 416 | 9.96 |
| Example 3 | 9.5 | Not disconnected | ＞20min | 420 | 9.1 |
This shows, adopt this matrix material can not only improve ring stiffness, and can reduce cost, is a kind of very promising matrix material.
Claims (10)
1, a kind of matrix material that is used to prepare polyvinyl piping materials, the major ingredient that it is characterized in that matrix material is mineral filler, matrix resin and properties-correcting agent, the weight percent of its each composition is: inorganic filler content is 30.3-92%, modifier content is 0.3-2%, matrix resin content is 8-69.7%, and wherein the content summation of each composition is 100%; Wherein mineral filler is made up of cenosphere and glass fibre, mica, calcium carbonate superfine powder, glass fibre/mica, glass fibre/calcium carbonate superfine powder, mica/calcium carbonate superfine powder or glass fibre/mica/calcium carbonate superfine powder, cenosphere is to extract from flyash, and its particle diameter is at 3～10 μ m; Properties-correcting agent is titanic acid ester, aluminic acid ester, titanic acid ester/aluminic acid ester or silane coupling agent; Matrix resin is a high density polyethylene(HDPE).
2, the matrix material that is used to prepare polyvinyl piping materials according to claim 1 is characterized in that inorganic filler content is 70-85%, and modifier content is 0.6-1.5%, and matrix resin content is 15-20%, and wherein the content summation of each composition is 100%; Wherein mineral filler is made up of cenosphere and glass fibre/mica, glass fibre/calcium carbonate superfine powder, mica/calcium carbonate superfine powder or glass fibre/mica/calcium carbonate superfine powder, and the cenosphere particle diameter is at 4-6 μ m; Properties-correcting agent is CT-114, aluminium phthalein composite coupler or KH-550.
3, the matrix material that is used to prepare polyvinyl piping materials according to claim 2 is characterized in that mineral filler is made up of cenosphere and glass fibre/mica or glass fibre/calcium carbonate superfine powder; Properties-correcting agent is CT-114 or KH-550.
4, the matrix material that is used to prepare polyvinyl piping materials according to claim 1 is characterized in that adding the lubricant of the 0.1-0.2 weight % of relative total amount when mineral filler and properties-correcting agent mixing.
5, the matrix material that is used to prepare polyvinyl piping materials according to claim 4 is characterized in that lubricant is EBS.
6, according to claim 1,2,3,4 or 5 described any matrix materials that are used to prepare polyvinyl piping materials, it is characterized in that when mineral filler and properties-correcting agent mixing, the auxiliary addition agent that adds the 0.1-0.4 weight % of relative total amount, auxiliary addition agent is toughner, dispersion agent, static inhibitor, organic fire-retardant, oxidation inhibitor, one or more in the expanding material.
7, the matrix material that is used to prepare polyvinyl piping materials according to claim 6 is characterized in that auxiliary addition agent is an organic fire-retardant, and its consumption is the 0.1-0.3 weight % of relative total amount.
8, the matrix material that is used to prepare polyvinyl piping materials according to claim 7 is characterized in that organic fire-retardant is an antimonous oxide, and its consumption is the 0.2-0.3 weight % of relative total amount.
9, the production method of the matrix material of the described preparation polyvinyl piping materials of claim 1, this method comprises the steps:
(1), get mineral filler and matrix resin is dried processing respectively in drying machine, make moisture content less than 1%, standby;
(2), cenosphere was put into the first stirring at low speed 2-4 of high-speed mixer minute, in the process that stirs, properties-correcting agent is added in the high-speed mixer, high-speed stirring 5-10min afterwards, whipping temp is at 80-105 ℃;
(3), again the matrix resin of getting dry for standby is put into high-speed mixer, and material stirs 5-10min in bucket, makes compound;
(4), compound is put in the twin screw extruder, melt extrude, pelletizing prepares matrix material.
10, the production method of the matrix material of the described preparation polyvinyl piping materials of claim 9 when it is characterized in that properties-correcting agent is metatitanic acid fat or aluminic acid lipoprotein coupling agent, adds after with 1: 1 dilution proportion with ethanol or white oil; When being silane coupling agent, properties-correcting agent adds after the hydrolysis regulating under the scope that pH value is 4-9.
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| CN 200310106223 CN1252169C (en) | 2003-11-07 | 2003-11-07 | Composite for preparing polyethylene tube and method for preparing the same |
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| CN 200310106223 CN1252169C (en) | 2003-11-07 | 2003-11-07 | Composite for preparing polyethylene tube and method for preparing the same |
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| CN1252169C true CN1252169C (en) | 2006-04-19 |
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| CN1927931B (en) * | 2006-09-26 | 2011-11-23 | 上海清远管业科技有限公司 | Special material for producing double-walled entwining tube |
| CN102516630A (en) * | 2011-12-13 | 2012-06-27 | 常州侨光电工器材有限公司 | Special-purposed material used for manufacturing flame-retarding wound pipe |
| CN102786729B (en) * | 2012-08-01 | 2014-08-27 | 杨电云 | PE160 grade composite material for pipes and preparation method of composite material |
| CN104812826B (en) * | 2012-09-28 | 2018-03-20 | 陶氏环球技术有限责任公司 | Composition, band prepared therefrom and composite pipe and the method for preparing composite pipe |
| CN103057174B (en) * | 2012-12-29 | 2014-03-19 | 山东省呈祥电工电气有限公司 | Plastic steel composite cable conduit and manufacturing method thereof |
| CN105273295A (en) * | 2014-07-17 | 2016-01-27 | 深圳市联创科技集团有限公司 | Fan counterweight plate high density polyethylene material |
| CN105670085A (en) * | 2016-04-11 | 2016-06-15 | 叶青 | High-strength polyethylene pipe |
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| CN106893177A (en) * | 2017-03-07 | 2017-06-27 | 张家口三融新型管材有限公司 | A kind of reinforcement enhancing flyash plastic pipe and preparation method thereof |
| CN107903475A (en) * | 2017-12-13 | 2018-04-13 | 马鞍山松鹤信息科技有限公司 | A kind of special high cold-resistant material of photovoltaic generation case and its preparation process |
| CN108864531A (en) * | 2018-06-13 | 2018-11-23 | 赵丽莎 | A kind of preparation method of the high density polyethylene pipe material of environment-friendly degradable |
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