CN1300234C - High performance and high molecular polyethylene/sheet silicate nano composite materials - Google Patents
High performance and high molecular polyethylene/sheet silicate nano composite materials Download PDFInfo
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- CN1300234C CN1300234C CNB2004100064118A CN200410006411A CN1300234C CN 1300234 C CN1300234 C CN 1300234C CN B2004100064118 A CNB2004100064118 A CN B2004100064118A CN 200410006411 A CN200410006411 A CN 200410006411A CN 1300234 C CN1300234 C CN 1300234C
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Abstract
The present invention relates to a developing method for high performance high molecular weight polyethylene composite materials. High molecular weight polyethylene is universal thermoplastics with high output and large use amount and has the characteristics of low price and convenient processing operation so that high molecular weight polyethylene has a wide application area; however, compared with engineering plastics, the performance of high molecular weight polyethylene is poorer because of the continuity and the flexibility of macromolecular chain segments of high molecular weight polyethylene; therefore, the application and the development of high molecular weight polyethylene towards a functionalized and high performance direction are limited. The engineering realization of polyolefin plastics has the main development flow of adding inorganic materials to high molecular weight polyethylene materials. Composite materials with favorable interface compatibility preferably combine the rigidity, the heat resistance, the wear resistance, etc. of inorganic matter with the flexibility, the favorable workability and the plasticity of organic matter; consequently, engineering realization or certain special performance is given to general materials, the grade of the materials is increased, and the use range of the materials is expanded.
Description
The present invention relates to a kind of method of production of high performance polymer weight polyethylene composite material.
High molecular weight polyethylene is the very big interchangeable heat thermoplastic plastic of output and consumption, has characteristic inexpensive and easy to process, and Application Areas is very extensive.But because the continuity and the snappiness of its macromolecular chain segment, it is on the low side to make its performance compare with engineering plastics, has limited its application and development to functionalization, high performance direction.
Dosing inorganic materials in the High molecular weight polyethylene material is the development main flow of polyolefin plastics through engineering approaches.The compatible matrix material of good interface is with the rigidity of inorganics, thermotolerance, wear resistance etc., with organic snappiness, good workability, plasticity-, combine preferably, thereby give universal material engineeringization, or some property, the use range of raising material class, extensible material.
Traditional polyethylene/inorganic filler composite material, relatively poor in the two-phase interface consistency, cause the mechanical property of matrix material and other poor-performings.
The invention provides a kind of preparation method with High molecular weight polyethylene/laminated nm-silicate composite material of excellent mechanical property, thermal property and wear resisting property.
The present invention increases the consistency of organic and inorganic phase interface by coupling processing; By little crosslinked, controlling polymers melt shearing resistance, promote grafted monomer to be inserted into layered silicate sheet interlayer, and weaken and further destroy Van der Waals bonding force between the layered silicate adjacent two layers.Thereby realize the bounding force of organic polymer body, prepare high performance High molecular weight polyethylene/laminated nm-silicate composite material at layered silicate outside surface and interlayer.
High molecular weight polyethylene of the present invention/the component of laminated nm-silicate composite material raw material, content following (parts by weight):
High molecular weight polyethylene 100
Layered silicate 0.03-30
Coupling agent 0.01-10
Linking agent 0.001-3
Dispersing auxiliary 0.5-30
Additive 0.01-3
High molecular weight polyethylene used in the present invention is meant that viscosity-average molecular weight is the kind of 200,000 to 800,000 suitability for industrialized production.
Layered silicate used in the present invention is a class inorganic mineral, and its chemical constitution is for to contain: silicon-dioxide, magnesium oxide, calcium oxide, aluminum oxide etc., have talcum laminate structure, big L/D ratio, wollastonite.The layered silicate lamellar spacing is generally at 1-2nm, the lamella particle diameter is generally at 50-200nm, sheet structure in hot shearing, sticking cut, under the comprehensive action such as organic little crosslinked insertion, destroy the Van der Waals combination of maintaining two interlayers easily, formation is dispersed in the inorganic nano structure of radius-thickness ratio in the polymkeric substance body, big, characterizes out stronger nano effect.In the present invention, the optimum amount of layered silicate is 3-15 part.
Coupling agent of the present invention is vinyltriethoxysilane, γ-(methacryloxypropyl) Trimethoxy silane, γ-An Jibingjisanyiyangjiguiwan, sulfonyl azide Trimethoxy silane, vinyltrimethoxy silane, vinyl three ('beta '-methoxy Ethoxysilane), vinyl trichloro silane etc.
Linking agent of the present invention is 2,5-dimethyl-2, two (tert-butyl peroxy base) hexanes of 5-, ditertiary butyl peroxide (DBP, DTBP), 2,5-dimethyl-2,5-two (tert-butyl peroxy base hexane-3), dicumyl peroxide etc.
Dispersing auxiliary of the present invention is water, acetone, ethanol, white oil etc.
The additive that the present invention adopts is oxidation inhibitor, light stabilizer etc.Oxidation inhibitor can be antioxidant 1010, antioxidant 1076 etc.; Light stabilizer can be UV327, UV770, UV944 etc.
High molecular weight polyethylene/laminated nm-silicate composite material of the present invention prepares according to the following steps:
The coupling agent that will have layered silicate 0.03-30 part laminate structure, big L/D ratio and 0.01-10 part carries out coupling processing.More than handle and in homogenizer, finish.
100 parts of High molecular weight polyethylenes, 0.001-3 part linking agent, 0.5-30 dispersing auxiliary, 0.01-3 part additive are joined in the homogenizer successively,, mix with through the layered silicate high-speed stirring of coupling processing 3-30 minute.
With the mixture of above-mentioned processing at 180 ℃ of-270 ℃ of extruding pelletizations on the cocurrent and parallel twin screw extruder.
High molecular weight polyethylene/the laminated nm-silicate composite material of the present invention's preparation is because the synergistic effect of coupling, little crosslinked intercalation makes the nano effect of material obtain embodying.The nano composite material of preparation is compared with bulk material in the index of each side such as tensile strength, flexural strength, Young's modulus, heat-drawn wire, material wear-resistant, and raising is by a relatively large margin all arranged.
Embodiment is as follows:
To have 5 parts of coupling agents of layered silicate laminate structure, big L/D ratio and carry out coupling processing with 0.1 part.More than handle and in homogenizer, finish.
95 parts of High molecular weight polyethylenes, 0.01 part of linking agent, 0.3 dispersing auxiliary, 0.4 part of additive are joined in the homogenizer successively, and high-speed stirring 5 minutes mixes.
With mixture extruding pelletization on the cocurrent and parallel twin screw extruder of above-mentioned processing, each section of forcing machine temperature is set at: 200 ℃, 220 ℃, 240 ℃, 240 ℃, 240 ℃.Product after the granulation is injected sample preparation on injector, injection temperature is set: 190 ℃, 225 ℃, 230 ℃, and injection pressure 30Mpa, the performance after the detection sees Table:
Table 1
| Embodiment | 1 | 2 | 3 | 4 |
| High molecular weight polyethylene | 95 | 90 | 85 | 80 |
| Layered silicate | 5 | 10 | 15 | 20 |
| Coupling agent | 0.1 | 0.2 | 0.3 | 0.4 |
| Linking agent | 0.01 | 0.02 | 0.02 | 0.02 |
| Dispersing auxiliary | 0.3 | 0.3 | 0.3 | 0.3 |
| Additive | 0.4 | 0.4 | 0.4 | 0.4 |
| Tensile strength | 36.1 | 36.7 | 33.2 | 30.5 |
| Flexural strength | 25 | 29 | 32 | 37 |
| Young's modulus | 1350 | 1710 | 2150 | 2360 |
| Heat-drawn wire | 93 | 96 | 96 | 98 |
| The mortar abrasion | 0.45 | 0.38 | 0.40 | 0.42 |
Claims (4)
1, a kind of high performance polymer weight northylen/laminated nm-silicate composite material is characterized in that described High molecular weight polyethylene/laminated nm-silicate composite material raw material comprises following component and content, parts by weight:
High molecular weight polyethylene 100
Layered silicate 0.03-30
Coupling agent 0.01-10
Linking agent 0.001-3
Dispersing auxiliary 0.5-30
Additive 0.01-3
Described coupling agent is vinyltriethoxysilane, γ-(methacryloxypropyl) Trimethoxy silane, γ-An Jibingjisanyiyangjiguiwan, sulfonyl azide Trimethoxy silane, vinyltrimethoxy silane, vinyl three ('beta '-methoxy Ethoxysilane), vinyl trichloro silane;
Described linking agent is 2,5-dimethyl-2, two (tert-butyl peroxy base) hexanes of 5-, ditertiary butyl peroxide DBP, DTBP, 2,5-dimethyl-2,5-two (tert-butyl peroxy base hexane-3), dicumyl peroxides;
Described dispersing auxiliary is water, acetone, ethanol, white oil;
Described additive is oxidation inhibitor, light stabilizer; Oxidation inhibitor is antioxidant 1010, antioxidant 1076; Light stabilizer is UV327, UV770, UV944.
2, a kind of high performance polymer weight northylen/laminated nm-silicate composite material according to claim 1 is characterised in that described High molecular weight polyethylene, is the polyethylene of 200,000 to 800,000 suitability for industrialized production for viscosity-average molecular weight.
3, a kind of high performance polymer weight northylen/laminated nm-silicate composite material according to claim 1, be characterised in that described layered silicate, be a class inorganic mineral, its chemical constitution is for to contain: silicon-dioxide, magnesium oxide, calcium oxide, aluminum oxide have talcum laminate structure, big L/D ratio, a wollastonite; The layered silicate lamellar spacing is 1-2nm, and the lamella particle diameter is 50-200nm.
4, the preparation method of a kind of high performance polymer weight northylen/laminated nm-silicate composite material according to claim 1 is characterised in that according to the following steps and carries out:
1) coupling agent that will have layered silicate 0.03-30 part laminate structure, big L/D ratio and 0.01-10 part carries out coupling processing; More than handle and in homogenizer, finish
2) 100 parts of High molecular weight polyethylenes, 0.001-3 part linking agent, 0.5-30 dispersing auxiliary, 0.01-3 part additive are joined in the homogenizer successively,, mix with through the layered silicate high-speed stirring of coupling processing 3-30 minute
3) with the mixture of above-mentioned processing at 180 ℃ of-270 ℃ of extruding pelletizations on the cocurrent and parallel twin screw extruder
4) product after the granulation is injected sample preparation on injector, and injection temperature is set: 190 ℃, 225 ℃, 230 ℃, and injection pressure 30Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100064118A CN1300234C (en) | 2004-03-02 | 2004-03-02 | High performance and high molecular polyethylene/sheet silicate nano composite materials |
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| CNB2004100064118A CN1300234C (en) | 2004-03-02 | 2004-03-02 | High performance and high molecular polyethylene/sheet silicate nano composite materials |
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| CN1663996A CN1663996A (en) | 2005-09-07 |
| CN1300234C true CN1300234C (en) | 2007-02-14 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101914259B (en) * | 2010-08-11 | 2012-02-01 | 华南理工大学 | Material special for preparing lithium ion battery diaphragm and preparation method thereof |
| CN102311698B (en) * | 2011-09-21 | 2013-08-14 | 常州大学 | Ultraviolet light curing coating and preparation method thereof |
| CN103044754A (en) * | 2013-01-22 | 2013-04-17 | 朱云杰 | Ultra-high molecular weight polyethylene/carbon nanotube oil tube lining tube and preparation method thereof |
| CN106009200A (en) * | 2016-07-31 | 2016-10-12 | 武汉市知富企业管理咨询有限公司 | Packaging plastic and preparation method thereof |
| CN108276647A (en) * | 2018-02-22 | 2018-07-13 | 埃维勒（北京）化工科技有限公司 | A kind of polythene material and the preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993006155A1 (en) * | 1991-09-23 | 1993-04-01 | Fr Polymers, Inc. | Fire retardant granules for thermoplastic polymers |
| BR9202713A (en) * | 1992-07-13 | 1994-02-01 | Itap S A | A PVC-FREE ELASTOMERIC THERMOPLASTIC COMPOSITION INTENDED TO MAKE SELLERS FOR DRINK CONTAINER LID |
| CN1324886A (en) * | 2000-05-24 | 2001-12-05 | 中国科学院化学研究所 | Composite nanometer montmorillonoid-polyolefine material and its prepn. |
| CN1389501A (en) * | 2001-08-22 | 2003-01-08 | 宋渝吉 | Modifying laminated silicate, nano composite polyethylene-laminated silicate material and their prepn. |
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- 2004-03-02 CN CNB2004100064118A patent/CN1300234C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993006155A1 (en) * | 1991-09-23 | 1993-04-01 | Fr Polymers, Inc. | Fire retardant granules for thermoplastic polymers |
| BR9202713A (en) * | 1992-07-13 | 1994-02-01 | Itap S A | A PVC-FREE ELASTOMERIC THERMOPLASTIC COMPOSITION INTENDED TO MAKE SELLERS FOR DRINK CONTAINER LID |
| CN1324886A (en) * | 2000-05-24 | 2001-12-05 | 中国科学院化学研究所 | Composite nanometer montmorillonoid-polyolefine material and its prepn. |
| CN1389501A (en) * | 2001-08-22 | 2003-01-08 | 宋渝吉 | Modifying laminated silicate, nano composite polyethylene-laminated silicate material and their prepn. |
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| CN1663996A (en) | 2005-09-07 |
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