CN102617920A - Glass-fiber reinforced bimodal polyethylene material and preparation process thereof - Google Patents
Glass-fiber reinforced bimodal polyethylene material and preparation process thereof Download PDFInfo
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- CN102617920A CN102617920A CN2012101096093A CN201210109609A CN102617920A CN 102617920 A CN102617920 A CN 102617920A CN 2012101096093 A CN2012101096093 A CN 2012101096093A CN 201210109609 A CN201210109609 A CN 201210109609A CN 102617920 A CN102617920 A CN 102617920A
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Abstract
The invention discloses a glass-fiber reinforced bimodal polyethylene material and a preparation process thereof. The glass-fiber reinforced bimodal polyethylene material is characterized by comprising, by weight, 50 parts to 87 parts of bimodal polyethylene, 10 parts to 40 parts of glass fiber, 2 parts to 10 parts of compatilizers, 0.2 parts to 1.0 part of heat stabilizers, 0.1 parts to 1.0 part of processing aids, and 0 part to 12 parts of filling modified agents. The preparation process includes adding the bimodal polyethylene, the compatilizers, the heat stabilizers, the processing aids and the filling modified agents proportionally into a mixing device, subjecting the mixture to fusing, mixing and dispersing at the temperature between 160 DEG C and 250 DEG C, simultaneously, adding the glass fiber from a side feed inlet, and finally performing extrusion and granulation. According to the glass-fiber reinforced bimodal polyethylene material and the preparation process thereof, the provided material has a good stiffness and a low-temperature toughness, and simultaneously has a good processing performance; besides, the preparation process is simple and convenient, easy to operate and energy-saving, and conforms to the industrial production requirement.
Description
Technical field
The present invention relates to a kind of glass and strengthen bimodal polyethylene materials and preparation method thereof, be specifically related to a kind of glass enhancing modified bimodal polyethylene materials that is used for electrical function spare and preparation method thereof.
Background technology
Vilaterm, has in daily life and industrial and agricultural production widely and uses, like food product pack, electrical package, tubing, electric wire etc. because of it has good toughness, electrical insulating property and workability as one of five big general-purpose plastics.Along with the continuous development of polyolefin catalyst and production technique, the poly new variety with different qualities constantly are developed, and bimodal polyethylene is exactly one of them.
The characteristic feature of bimodal polyethylene product is that the polymeric chain in the molecule is divided into low relative molecular mass and high molecular weight two portions; The MWD of each polymeric chain is all narrow, but the distribution of total molecular weight of polymer presents wide bimodal form.The harmony that this relative molecular mass distributes makes bimodal polyethylene possess good mechanical property and processing characteristicies such as melt strength height, good heat resistance, good rigidly, creep resistance simultaneously.
Different with common blended polyethylene; The HMW part and the low molecular weight part of bimodal polyethylene have realized uniform mixing on the molecule rank; And the Vilaterm of two kinds of different relative molecular weights has only been realized the mixing on the macroscopic view through twin screw; Be difficult to reach the mixing on the microcosmic, therefore on physicals and processing characteristics less than same grade of other bimodal polyethylene.
Because the workability of bimodal polyethylene; In the injection moulding or extrusion moulding process of reality, can improve the shaping efficiency of equipment greatly, shorten shaping cycle; Reduce injection time; Save production cost, particularly along with the implementation of national environmental protection energy saving policy, the bimodal polyethylene product will be more in all respects of life that enter society.
Summary of the invention
The purpose of this invention is to provide a kind of glass and strengthen bimodal polyethylene materials and preparation method thereof, raising sets up production efficiency fully, reduces the energy consumption of production process, the demand that satisfied industry and society constantly develop polyethylene product.
For realizing above-mentioned purpose, the invention provides a kind of glass and strengthen bimodal polyethylene materials, it is characterized in that, comprise following component in weight part:
Bimodal polyethylene 50-87 part;
Spun glass 10-40 part;
Compatilizer 2-10 part;
Thermo-stabilizer 0.2-1.0 part;
Processing aid 0.1-1.0 part;
Filling modifying agent 0-12 part.
Preferably, described bimodal polyethylene is that MWD presents bimodal or bimodal above Vilaterm.
Preferably, described spun glass is an alkali free glass fibre.
Preferably; Described compatilizer is the polar monomer graftomer; Its polymeric matrix is any one or a few the mixture in multipolymer, polyethylene-polystyrene-polypropylene terpolymer, ethylene-propylene-butadiene terpolymer, ethylene-acrylate copolymer and the ethylene-acrylate-glycidyl methacrylate copolymer of Vilaterm, bimodal polyethylene, Vestolen PP 7052, ethene-α-ethylene-octene copolymer, vinylbenzene and divinyl, and its polar monomer is any one or a few the mixture in maleic anhydride and analogue and vinylformic acid and the ester derivative thereof.
Preferably, described thermo-stabilizer is the mixture class of phenols, amine, phosphorous acid esters, half Hinered phenols, acryl functional group and monothioester and any one or a few the mixture in the calixarene kind thermo-stabilizer.
Preferably, described processing aid is any one or a few the mixture in low molecule ester class, metallic soap class, Triple Pressed Stearic Acid complex ester class and the amides processing aid.
Preferably, described filling modifying agent is any one or a few the mixture in permanent white, lime carbonate, talcum powder, mica and the polynite.
The present invention also provides above-mentioned glass to strengthen the preparation method of bimodal polyethylene materials; It is characterized in that; Bimodal polyethylene, compatilizer, thermo-stabilizer, processing aid and filling modifying agent are added in the mixing facilities in proportion, carry out melting mixing at 160-250 ℃ and disperse, simultaneously; Spun glass is added from the side spout, extrude at last, granulation.
Described mixing facilities is single screw extrusion machine or twin screw extruder.
The present invention utilizes the workability of bimodal polyethylene; In the injection moulding or extrusion moulding process of reality, can improve the shaping efficiency of equipment greatly, shorten shaping cycle; Reduce injection time; Save production cost, particularly along with the implementation of national environmental protection energy saving policy, the bimodal polyethylene product will be more in all respects of life that enter society.
When the material that adopts method provided by the invention to prepare has favorable rigidity and low-temperature flexibility; Has good processing properties; Under identical condition; Its used injection pressure is merely common enhancing Vilaterm 1/3rd, on producing, has practiced thrift energy consumption greatly, satisfies the development trend of conservation-minded society.In addition, preparation method provided by the invention is simple and convenient, and operation meets the suitability for industrialized production requirement easily.
Embodiment
Further set forth the present invention through embodiment and Comparative Examples below.Spun glass among embodiment 1-4 and the Comparative Examples 1-2 is selected alkali free glass fibre (508A, megalith glass) for use; Compatilizer is selected maleic anhydride graft new LDPE (film grade) (AD-70, Foshan Bai Chen), horse Lay anhydride grafted lldpe (PC-3C, Foshan Bai Chen) for use; Thermo-stabilizer is selected Irganox 168 (CIBA company), Irganox 1010 (CIBA company) for use; Processing aid is selected erucicamide, Zinic stearas for use; Filling modifying agent is selected permanent white (AB-3000N1, sky, Huangpu, Guangzhou is safe), talcum powder (AH-1250N1, Heshan chemical industry), lime carbonate (AC-MLT03, Dongguan Mei Litai) for use.
Embodiment 1
Take by weighing bimodal polyethylene (FB2230; Borealis) 70 kilograms, 11.5 kilograms in 7 kilograms of AD-70,1,010 0.5 kilograms of Irganox, 168 0.5 kilograms of Irganox, 0.5 kilogram of erucicamide and permanent white join length-to-diameter ratio and are and carries out melting mixing in 40: 1 the twin screw extruder and disperse; Extrusion temperature is 180 ℃; Simultaneously, 10 kilograms in spun glass is added from the side spout, extrude at last, granulation.
With above-mentioned its performance of the testing of materials that makes.Test result is tabulated as follows:
| Performance index | Testing standard | Conditional parameter | Unit | Spatter test result |
| Tensile strength | ISO?527 | 10mm/min | MPa | 38 |
| Flexural strength | ISO?178 | 2mm/min | MPa | 44 |
| Modulus in flexure | ISO?178 | 2mm/min | MPa | 1050 |
| Shock strength | ISO?180 | 23℃ | KJ/m 2 | 9.5 |
| Density | ISO?1183 | 23℃ | g/cm 3 | 1.06 |
Embodiment 2
Take by weighing bimodal polyethylene (FB2310; Borealis) 66 kilograms, 7.5 kilograms of 5 kilograms of AD-70,1,010 0.5 kilograms of Irganox, 168 0.5 kilograms of Irganox, 0.5 kilogram of erucicamide and talcum powder join length-to-diameter ratio and are and carry out melting mixing in 40: 1 the twin screw extruder and disperse; Extrusion temperature is 180 ℃; Simultaneously, 20 kilograms in spun glass is added from the side spout, extrude at last, granulation.
With above-mentioned its performance of the testing of materials that makes.Test result is tabulated as follows:
| Performance index | Testing standard | Conditional parameter | Unit | Test result |
| Tensile strength | ISO?527 | 10mm/min | MPa | 47 |
| Flexural strength | ISO?178 | 2mm/min | MPa | 59 |
| Modulus in flexure | ISO?178 | 2mm/min | MPa | 1500 |
| Shock strength | ISO?180 | 23℃ | KJ/m 2 | 12.5 |
| Density | ISO?1183 | 23℃ | g/cm 3 | 1.15 |
Embodiment 3
Take by weighing bimodal polyethylene (FB2310; Borealis) 63 kilograms, 0.5 kilogram of 5 kilograms of AD-105,1,010 0.5 kilograms of Irganox, 168 0.5 kilograms of Irganox, 0.5 kilogram of Zinic stearas and talcum powder join length-to-diameter ratio and are and carry out melting mixing in 40: 1 the twin screw extruder and disperse; Extrusion temperature is 180 ℃; Simultaneously, 30 kilograms in spun glass is added from the side spout, extrude at last, granulation.
With above-mentioned its performance of the testing of materials that makes.Test result is tabulated as follows:
| Performance index | Testing standard | Conditional parameter | Unit | Test result |
| Tensile strength | ISO?527 | 10mm/min | MPa | 66 |
| Flexural strength | ISO?178 | 2mm/min | MPa | 81 |
| Modulus in flexure | ISO?178 | 2mm/min | MPa | 2600 |
| Shock strength | ISO?180 | 23℃ | KJ/m 2 | 21.5 |
| Density | ISO?1183 | 23℃ | g/cm 3 | 1.16 |
Embodiment 4
Take by weighing bimodal polyethylene (FB2230; Borealis) 54 kilograms, 2.5 kilograms in 5 kilograms of AD-70,1,010 0.5 kilograms of Irganox, 168 0.5 kilograms of Irganox, 0.5 kilogram of calcium stearate and lime carbonate join length-to-diameter ratio and are and carries out melting mixing in 40: 1 the twin screw extruder and disperse; Extrusion temperature is 180 ℃; Simultaneously, 37 kilograms in spun glass is added from the side spout, extrude at last, granulation.
With above-mentioned its performance of the testing of materials that makes.Test result is tabulated as follows:
| Performance index | Testing standard | Conditional parameter | Unit | Test result |
| Tensile strength | ISO?527 | 10mm/min | MPa | 75 |
| Flexural strength | ISO?178 | 2mm/min | MPa | 95 |
| Modulus in flexure | ISO?178 | 2mm/min | MPa | 3200 |
| Shock strength | ISO?180 | 23℃ | KJ/m 2 | 27 |
| Density | ISO?1183 | 23℃ | g/cm 3 | 1.22 |
Comparative Examples 1
Take by weighing Vilaterm (HDPE 5000S; The Lanzhou petrochemical industry) 66 kilograms, 5 kilograms of AD-70,1,010 0.5 kilograms of Irganox, 168 0.5 kilograms of Irganox, 0.5 kilogram of calcium stearate, 7.5 kilograms of talcum powder join length-to-diameter ratio and are and carry out melting mixing in 40: 1 the twin screw extruder and disperse; Extrusion temperature is 180 ℃; Simultaneously, 20 kilograms in spun glass is added from the side spout, extrude at last, granulation.
With above-mentioned its performance of the testing of materials that makes.Test result is tabulated as follows:
| Performance index | Testing standard | Conditional parameter | Unit | Test result |
| Tensile strength | ISO?527 | 10mm/min | MPa | 42 |
| Flexural strength | ISO?178 | 2mm/min | MPa | 50 |
| Modulus in flexure | ISO?178 | 2mm/min | MPa | 1200 |
| Shock strength | ISO?180 | 23℃ | KJ/m 2 | 10.5 |
| Density | ISO?1183 | 23℃ | g/cm 3 | 1.15 |
Comparative Examples 2
Take by weighing Vilaterm (HDPE HMA025; Exxon Mobil) 63 kilograms, 5 kilograms of AD-105,1,010 0.5 kilograms of Irganox, 168 0.5 kilograms of Irganox, 0.5 kilogram of calcium stearate, 0.5 kilogram of talcum powder join length-to-diameter ratio and are and carry out melting mixing in 40: 1 the twin screw extruder and disperse; Extrusion temperature is 180 ℃; Simultaneously, 30 kilograms in spun glass is added from the side spout, extrude at last, granulation.
With above-mentioned its performance of the testing of materials that makes.Test result is tabulated as follows:
| Performance index | Testing standard | Conditional parameter | Unit | Test result |
| Tensile strength | ISO?527 | 10mm/min | MPa | 60 |
| Flexural strength | ISO?178 | 2mm/min | MPa | 72 |
| Modulus in flexure | ISO?178 | 2mm/min | MPa | 2100 |
| Shock strength | ISO?180 | 23℃ | KJ/m 2 | 15.5 |
| Density | ISO?1183 | 23℃ | g/cm 3 | 1.16 |
With embodiment 1-4 and Comparative Examples 1-2, its processing characteristics of contrast on 1000mm spiral-line mould.Injection parameters is following:
Unit type: shake moral CJ150M3V
The melten gel temperature:
First section: 120 ℃
Second section: 150 ℃
The 3rd section: 170 ℃
Die temperature: 50 ℃
Injection speed: 20%
Injection pressure: 10%
Back pressure: 5%
Dwell pressure: 0
Under above-mentioned same parameter condition, the gained helical length is following:
| Helical length/mm | |
| Embodiment 1 | 590 |
| Embodiment 2 | 440 |
| Embodiment 3 | 320 |
| Embodiment 4 | 270 |
| Comparative Examples 1 | 190 |
| Comparative Examples 2 | 120 |
Claims (9)
1. a glass strengthens bimodal polyethylene materials, it is characterized in that, comprises following component in weight part:
Bimodal polyethylene 50-87 part;
Spun glass 10-40 part;
Compatilizer 2-10 part;
Thermo-stabilizer 0.2-1.0 part;
Processing aid 0.1-1.0 part;
Filling modifying agent 0-12 part.
2. glass as claimed in claim 1 strengthens bimodal polyethylene materials, it is characterized in that, described bimodal polyethylene is that MWD presents bimodal or bimodal above Vilaterm.
3. glass as claimed in claim 1 strengthens bimodal polyethylene materials, it is characterized in that described spun glass is an alkali free glass fibre.
4. glass as claimed in claim 1 strengthens bimodal polyethylene materials; It is characterized in that; Described compatilizer is the polar monomer graftomer; Its polymeric matrix is any one or a few the mixture in multipolymer, polyethylene-polystyrene-polypropylene terpolymer, ethylene-propylene-butadiene terpolymer, ethylene-acrylate copolymer and the ethylene-acrylate-glycidyl methacrylate copolymer of Vilaterm, bimodal polyethylene, Vestolen PP 7052, ethene-α-ethylene-octene copolymer, vinylbenzene and divinyl, and its polar monomer is any one or a few the mixture in maleic anhydride and analogue and vinylformic acid and the ester derivative thereof.
5. glass as claimed in claim 1 strengthens bimodal polyethylene materials; It is characterized in that described thermo-stabilizer is the mixture class of phenols, amine, phosphorous acid esters, half Hinered phenols, acryl functional group and monothioester and any one or a few the mixture in the calixarene kind thermo-stabilizer.
6. glass as claimed in claim 1 strengthens bimodal polyethylene materials, it is characterized in that, described processing aid is any one or a few the mixture in low molecule ester class, metallic soap class, Triple Pressed Stearic Acid complex ester class and the amides processing aid.
7. glass as claimed in claim 1 strengthens bimodal polyethylene materials, it is characterized in that, described filling modifying agent is any one or a few the mixture in permanent white, lime carbonate, talcum powder, mica and the polynite.
8. the described glass of claim 1 strengthens the preparation method of bimodal polyethylene materials; It is characterized in that; Bimodal polyethylene, compatilizer, thermo-stabilizer, processing aid and filling modifying agent are added in the mixing facilities in proportion, carry out melting mixing at 160-250 ℃ and disperse, simultaneously; Spun glass is added from the side spout, extrude at last, granulation.
9. glass as claimed in claim 8 strengthens the preparation method of bimodal polyethylene materials, it is characterized in that described mixing facilities is single screw extrusion machine or twin screw extruder.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108148284A (en) * | 2016-12-05 | 2018-06-12 | 合肥杰事杰新材料股份有限公司 | A kind of weapon packing case material of counter infrared ray detection and preparation method thereof |
| CN108148237A (en) * | 2016-12-05 | 2018-06-12 | 合肥杰事杰新材料股份有限公司 | A kind of shell packing case material of infrared resistant detection and preparation method thereof |
| CN112358668A (en) * | 2020-09-28 | 2021-02-12 | 贵州源塑实业有限公司 | Polyethylene general pipe for agricultural irrigation and manufacturing method thereof |
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Cited By (3)
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| CN108148284A (en) * | 2016-12-05 | 2018-06-12 | 合肥杰事杰新材料股份有限公司 | A kind of weapon packing case material of counter infrared ray detection and preparation method thereof |
| CN108148237A (en) * | 2016-12-05 | 2018-06-12 | 合肥杰事杰新材料股份有限公司 | A kind of shell packing case material of infrared resistant detection and preparation method thereof |
| CN112358668A (en) * | 2020-09-28 | 2021-02-12 | 贵州源塑实业有限公司 | Polyethylene general pipe for agricultural irrigation and manufacturing method thereof |
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