CN104693696A - Modified polybutylene telephthalate material and preparation method thereof - Google Patents
Modified polybutylene telephthalate material and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a modified polybutylene telephthalate material. The material is prepared from the following components by weight: 45 to 55 parts of polybutylene telephthalate, 5 to 10 parts of a wear-resisting agent, 35 to 45 parts of glass fiber, 0.5 to 1 part of a lubricant, 0.2 to 0.4 part of an anti-oxidant and 0.6 to 1 part of a coupling agent. The preparation method comprises the following steps: uniformly mixing 45 to 55 parts of polybutylene telephthalate, 5 to 10 parts of the wear-resisting agent, 0.5 to 1 part of the lubricant, 0.2 to 0.4 part of the anti-oxidant and 0.6 to 1 part of the coupling agent at a high speed with a high-speed mixer; and pouring the uniformly mixed materials into a screw extruder, adding 35 to 45 parts of glass fiber into the screw extruder through a glass fiber feeding inlet and carrying out stranding pelletizing so as to obtain the modified polybutylene telephthalate material. The modified polybutylene telephthalate material has the advantages of lightness, self lubricating performance, small friction coefficient, stable size, small friction damage in use, etc.
Description
Technical field
The present invention relates to technical field of polymer materials, relate to a kind of modified polybutylene terephthalate and preparation method thereof.
Background technology
Polybutylene terephthalate (PBT) is a kind of special engineering plastics of excellent combination property.PBT has excellent high temperature resistant, corrosion-resistant, radiation hardness, flame retardant properties, balanced physical and mechanical properties and the feature such as fabulous dimensional stability and excellent electrical property, be widely used as structural macromolecular material, by filling, being modifiedly widely used as special engineering plastics.Meanwhile, PBT also can be made into various functional film, coating and matrix material, and succeed in fields such as electronic apparatus, aerospace, Automobile Transportation, machinery and chemical industry application.
In current lightweight process, it is inevitable that " to mould Dai Gang, to mould for aluminium " becomes development.Polybutylene terephthalate has good intensity, but it still can not meet the demands to require the materials application industry of superstrength at some, this just needs the material of more high strength to meet its requirement, simultaneously in space flight and aviation, when petrochemical industry uses as bearing or gear, require that it will have good self-lubricating abrasion-resistant performance, ensure and miscellaneous part associativity, thus the equipment of guarantee runs well and reduces the friction damage in use procedure.
Summary of the invention
In order to overcome above-mentioned prior art Problems existing, the object of this invention is to provide a kind of wear-resistant self-lubricating modified polybutylene terephthalate, this material has high slight, self lubricity, frictional coefficient is little, dimensional stabilizing, the advantage such as in use procedure friction damage is little; Add the glass fibre of low cost simultaneously, its cost is reduced significantly, make its scope of application obtain larger expansion, can be used as gear, the goods such as bearing use.
Another object of the present invention is to provide a kind of preparation method of above-mentioned wear-resistant self-lubricating modified polybutylene terephthalate.
For achieving the above object, the technical solution used in the present invention is as follows:
The invention provides a kind of modified polybutylene terephthalate, this material is made up of the component comprising following weight part:
Described anti-wear agent is selected from the one in molybdenumdisulphide, graphite, tetrafluoroethylene or ultra-high molecular weight polysiloxane.
Described molybdenumdisulphide is 1000 order to 2500 orders.
Described graphite is 1000 order to 2500 orders.
The molecular weight of described ultra-high molecular weight polysiloxane is greater than 100,000.
Described glass fibre is continuous glass fibre, and diameter is 10 ~ 15 μm, is preferably 10 ~ 12 μm.
Described lubricant be selected from stearyl alcohol, silicone or calcium stearate one or more.
Described oxidation inhibitor is selected from four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester (antioxidant 1010), one or more in β-positive octadecanol ester (antioxidant 1076) of (3,5-di-tert-butyl-hydroxy phenyl) propionic acid or hindered phenol stabilizer and processing stabilizers phosphorous acid ester compound antioxidant (oxidation inhibitor P262).
Described coupling agent is selected from one or both the mixture in γ-methacryloxypropyl trimethoxy silane (KH-570) or γ-(2,3-epoxy third oxygen) propyl trimethoxy silicane (KH-560).
Present invention also offers a kind of preparation method of above-mentioned modified polybutylene terephthalate, the method comprises the following steps:
By 45 ~ 55 parts of polybutylene terephthalates, 5 ~ 10 parts of anti-wear agents, 0.5 ~ 1 part of lubricant, 0.2 ~ 0.4 part of oxidation inhibitor and 0.6 ~ 1 part of coupling agent, even through high mixer high-speed mixing; Pour in screw extrusion press by the material mixed, 35 ~ 45 parts of glass fibre are entered screw extrusion press by glass admission port, and tie rod pelletizing obtains modified polybutylene terephthalate.
The rotating speed of described high mixer is 800 ~ 1000rpm, and mixing temperature is 40 ~ 60 DEG C, and mixing time is 5 ~ 10min.
Described screw extrusion press is single screw extrusion machine or twin screw extruder, and extrusion temperature is 250 ~ 270 DEG C.
Compared with prior art, the present invention has the following advantages and beneficial effect:
Wear-resistant self-lubricating modified polybutylene terephthalate prepared by the present invention, has very high intensity, has good self-lubricating abrasion-resistant performance, ensure that the associativity with miscellaneous part; Thus the equipment of guarantee runs well and reduces the friction damage in use procedure.Simultaneously as special engineering plastics, the goods such as this material has acid and alkali-resistance, corrosion resistance nature, and the advantages such as long service life can be used as gear, bearing use.
Embodiment
Below in conjunction with embodiment, the present invention is further detailed explanation.
In following examples, be all according to ASTM standard testing to the testing standard of product.
Embodiment 1
(1) raw material of following weight part is taken: 45 parts of polybutylene terephthalates, 1 part of silicone, 0.1 part of antioxidant 1010,0.1 part of antioxidant 1076,0.6 part of coupling agent kh-570,10 parts of anti-wear agent graphite (1000 order), controlling high mixer speed is 1000rmp, and temperature is 40 DEG C, mixing 10min, by above-mentioned raw materials through high mixer mixing at a high speed;
(2) extruder temperature is controlled at 250-270 DEG C, pour mixture into twin screw extruder, 45 parts of continuous glass fibres (diameter is 12 μm) are entered twin screw extruder by glass admission port, and tie rod pelletizing can obtain product, and the test of product correlated performance is in table 1.
Embodiment 2
(1) raw material of following weight part is taken: 50 parts of polybutylene terephthalates, 1 part of calcium stearate, 0.1 part of antioxidant 1010,0.2 part of antioxidant 1076,0.7 part of coupling agent kh-570,10 parts of anti-wear agent ultra-high molecular weight polysiloxane (molecular weight is greater than 100,000), controlling high mixer speed is 800rmp, and temperature is 60 DEG C, mixing 5min, by above-mentioned raw materials through high mixer mixing at a high speed;
(2) extruder temperature is controlled at 250-270 DEG C, pour mixture into twin screw extruder, by 40 parts of continuous glass fibres (diameter is 10 μm), enter twin screw extruder by glass admission port, tie rod pelletizing can obtain product, and the test of product correlated performance is in table 1.
Embodiment 3
(1) raw material of following weight part is taken: 55 parts of polybutylene terephthalates, 0.5 part of stearyl alcohol, 0.2 part of oxidation inhibitor P262,0.8 part of coupling agent kh-570,8 parts of anti-wear agent molybdenumdisulphide (1000 order), controlling high mixer speed is 950rmp, and temperature is 40 DEG C, mixing 10min, by above-mentioned raw materials through high mixer mixing at a high speed;
(2) extruder temperature is controlled at 250-270 DEG C, pour mixture into twin screw extruder, by 35 parts of continuous glass fibres (diameter is 12 μm), enter twin screw extruder by glass admission port, tie rod pelletizing can obtain product, and the test of product correlated performance is in table 1.
Embodiment 4
(1) raw material of following weight part is taken: 50 parts of polybutylene terephthalates, 0.5 part of silicone, 0.2 part of antioxidant 1010,0.2 part of antioxidant 1076,1 part of coupling agent KH-560,5 parts of anti-wear agent graphite (2500 order), controlling high mixer speed is 1000rmp, and temperature is 60 DEG C, mixing 5min, by above-mentioned raw materials through high mixer mixing at a high speed;
(2) extruder temperature is controlled at 250-270 DEG C, pour mixture into twin screw extruder, by 45 parts of continuous glass fibres (diameter is 15 μm), enter twin screw extruder by glass admission port, tie rod pelletizing can obtain product, and the test of product correlated performance is in table 1.
Embodiment 5
(1) raw material of following weight part is taken: 50 parts of polybutylene terephthalates, 0.8 part of silicone, 0.4 part of antioxidant 1076,0.9 part of coupling agent KH-560,10 parts of tetrafluoroethylene, controlling high mixer speed is 860rmp, and temperature is 50 DEG C, and above-mentioned raw materials mixes at a high speed through high mixer by mixing 10min;
(2) extruder temperature is controlled at 250-270 DEG C, pour mixture into twin screw extruder, by 40 parts of continuous glass fibres (diameter is 13 μm), enter twin screw extruder by glass admission port, tie rod pelletizing can obtain product, and the test of product correlated performance is in table 1.
Embodiment 6
(1) raw material of following weight part is taken: 45 parts of polybutylene terephthalates, 1 part of stearyl alcohol, 0.3 part of antioxidant 1076,1 part of coupling agent KH-560,10 parts of graphite (2000 order), controlling high mixer speed is 920rmp, and temperature is 60 DEG C, mixing 5min, by above-mentioned raw materials through high mixer mixing at a high speed;
(2) extruder temperature is controlled at 250-270 DEG C, pour mixture into twin screw extruder, by 45 parts of continuous glass fibres (diameter is 10 μm), enter twin screw extruder by glass admission port, tie rod pelletizing can obtain product, and the test of product correlated performance is in table 1.
Embodiment 7
(1) raw material of following weight part is taken: 55 parts of polybutylene terephthalates, 1 part of stearyl alcohol, 0.1 part of antioxidant 1010,0.2 part of antioxidant 1076,0.8 part of coupling agent KH-560,5 parts of tetrafluoroethylene, controlling high mixer speed is 830rmp, and temperature is 55 DEG C, mixing 8min, by above-mentioned raw materials through high mixer mixing at a high speed;
(2) extruder temperature is controlled at 250-270 DEG C, pour mixture into single screw extrusion machine, by 40 parts of continuous glass fibres (diameter is 12 μm), enter single screw extrusion machine by glass admission port, tie rod pelletizing can obtain product, and the test of product correlated performance is in table 1.
Table 1
By the known the present invention of table 1 with glass fiber reinforced polybutylene terephthalate, make the polybutylene terephthalate itself with higher-strength obtain higher strength enhancing, meet those needs superstrengths but the requirement of the not materials application of the better toughness of needs; The frictional coefficient of itself is reduced by adding anti-wear agent, improve its wear resisting property, in some industry, require that it not only will have very high intensity and also will have self-lubricating abrasion-resistant performance simultaneously, such as, when using as gear and bearing, its actual operation requirements can be met.
Above-mentioned is can understand and apply the invention for ease of those skilled in the art to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to embodiment here, those skilled in the art, according to announcement of the present invention, do not depart from improvement that scope makes and amendment all should within protection scope of the present invention.
Claims (10)
1. a modified polybutylene terephthalate, is characterized in that: this material is made up of the component comprising following weight part:
2. modified polybutylene terephthalate according to claim 1, is characterized in that: described anti-wear agent is selected from the one in molybdenumdisulphide, graphite, tetrafluoroethylene or ultra-high molecular weight polysiloxane.
3. modified polybutylene terephthalate according to claim 2, is characterized in that: described molybdenumdisulphide is 1000 order to 2500 orders;
Or described graphite is 1000 order to 2500 orders;
Or the molecular weight of described ultra-high molecular weight polysiloxane is greater than 100,000.
4. modified polybutylene terephthalate according to claim 1, is characterized in that: described glass fibre is continuous glass fibre, and diameter is 10 ~ 15 μm, is preferably 10 ~ 12 μm.
5. modified polybutylene terephthalate according to claim 1, is characterized in that: described lubricant be selected from stearyl alcohol, silicone or calcium stearate one or more.
6. modified polybutylene terephthalate according to claim 1, it is characterized in that: described oxidation inhibitor is selected from four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester] one or more in pentaerythritol ester, β-positive octadecanol ester of (3,5-di-tert-butyl-hydroxy phenyl) propionic acid or hindered phenol stabilizer and processing stabilizers phosphorous acid ester compound antioxidant.
7. modified polybutylene terephthalate according to claim 1, it is characterized in that: described coupling agent is selected from one or both the mixture in γ-methacryloxypropyl trimethoxy silane or γ-(2,3-epoxy third oxygen) propyl trimethoxy silicane.
8. a preparation method for the arbitrary described modified polybutylene terephthalate of claim 1 to 7, is characterized in that: the method comprises the following steps:
By 45 ~ 55 parts of polybutylene terephthalates, 5 ~ 10 parts of anti-wear agents, 0.5 ~ 1 part of lubricant, 0.2 ~ 0.4 part of oxidation inhibitor and 0.6 ~ 1 part of coupling agent, even through high mixer high-speed mixing; Pour in screw extrusion press by the material mixed, 35 ~ 45 parts of glass fibre are entered screw extrusion press by glass admission port, and tie rod pelletizing obtains modified polybutylene terephthalate.
9. the preparation method of modified polybutylene terephthalate according to claim 8, is characterized in that: the rotating speed of described high mixer is 800 ~ 1000rpm, and mixing temperature is 40 ~ 60 DEG C, and mixing time is 5 ~ 10min.
10. the preparation method of modified polybutylene terephthalate according to claim 8, is characterized in that: described screw extrusion press is single screw extrusion machine or twin screw extruder, and extrusion temperature is 250 ~ 270 DEG C.
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Cited By (14)
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| CN105219117A (en) * | 2015-11-11 | 2016-01-06 | 上海智高贸易有限公司 | A kind of high heat conduction wear resistance continuous fiber reinforced plastic and preparation method thereof |
| CN105219118A (en) * | 2015-11-11 | 2016-01-06 | 上海智高贸易有限公司 | A kind of continuous lod high-wearing feature plastics and preparation method thereof |
| CN105566865A (en) * | 2015-12-29 | 2016-05-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Wear and hydrolysis resistant PBT material, preparation method thereof, bowl blanket and dish washing machine |
| CN106633695A (en) * | 2016-12-13 | 2017-05-10 | 株洲时代新材料科技股份有限公司 | High-molecular self-lubricating material, preparation method of high-molecular self-lubricating material, and plate spring flanged bushing made of high-molecular self-lubricating material |
| CN106700435A (en) * | 2015-11-15 | 2017-05-24 | 合肥杰事杰新材料股份有限公司 | PBT (Polybutylene Terephthalate) enhanced material capable of being used as lamp pole of street lamp and preparation method |
| CN107189370A (en) * | 2017-06-20 | 2017-09-22 | 方达能源集团有限公司 | Off-course brake is every pad and preparation method thereof |
| CN107936499A (en) * | 2017-12-21 | 2018-04-20 | 安徽悦尔伟塑料机械有限公司 | Automotive compounded console and preparation method thereof |
| CN107964227A (en) * | 2017-12-21 | 2018-04-27 | 安徽悦尔伟塑料机械有限公司 | Automotive compounded console and preparation method thereof |
| CN108929525A (en) * | 2017-05-25 | 2018-12-04 | 合肥杰事杰新材料股份有限公司 | A kind of polyethylene terephthalate composition and preparation method thereof |
| CN109161174A (en) * | 2018-09-20 | 2019-01-08 | 安徽江淮汽车集团股份有限公司 | A kind of low VOC and high performance PBT composite and preparation method thereof |
| CN109423017A (en) * | 2017-08-29 | 2019-03-05 | 合肥杰事杰新材料股份有限公司 | A kind of PET composition and preparation method thereof |
| CN109575527A (en) * | 2017-09-29 | 2019-04-05 | 合肥杰事杰新材料股份有限公司 | A kind of polyethylene terephthalate composition and preparation method thereof |
| CN110240786A (en) * | 2019-05-08 | 2019-09-17 | 南通开普乐工程塑料有限公司 | A kind of PBT composite and preparation method thereof with good laser mark performance |
| CN112980150A (en) * | 2019-12-17 | 2021-06-18 | 华域视觉科技(上海)有限公司 | Molybdenum disulfide modified PBT glass fiber material, and preparation method and application thereof |
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| CN105219118A (en) * | 2015-11-11 | 2016-01-06 | 上海智高贸易有限公司 | A kind of continuous lod high-wearing feature plastics and preparation method thereof |
| CN105219117A (en) * | 2015-11-11 | 2016-01-06 | 上海智高贸易有限公司 | A kind of high heat conduction wear resistance continuous fiber reinforced plastic and preparation method thereof |
| CN106700435A (en) * | 2015-11-15 | 2017-05-24 | 合肥杰事杰新材料股份有限公司 | PBT (Polybutylene Terephthalate) enhanced material capable of being used as lamp pole of street lamp and preparation method |
| CN105566865A (en) * | 2015-12-29 | 2016-05-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Wear and hydrolysis resistant PBT material, preparation method thereof, bowl blanket and dish washing machine |
| CN105566865B (en) * | 2015-12-29 | 2017-12-26 | 佛山市顺德区美的洗涤电器制造有限公司 | Wear-resisting and waterproof solution PBT material and preparation method thereof, bowl indigo plant and dish-washing machine |
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| CN108929525A (en) * | 2017-05-25 | 2018-12-04 | 合肥杰事杰新材料股份有限公司 | A kind of polyethylene terephthalate composition and preparation method thereof |
| CN107189370A (en) * | 2017-06-20 | 2017-09-22 | 方达能源集团有限公司 | Off-course brake is every pad and preparation method thereof |
| US11261322B2 (en) | 2017-06-20 | 2022-03-01 | Forda Energy Uk Limited | Yaw brake lining and method of producing the same |
| CN107189370B (en) * | 2017-06-20 | 2018-06-26 | 方达能源集团有限公司 | Off-course brake is every liner and preparation method thereof |
| CN109423017A (en) * | 2017-08-29 | 2019-03-05 | 合肥杰事杰新材料股份有限公司 | A kind of PET composition and preparation method thereof |
| CN109575527A (en) * | 2017-09-29 | 2019-04-05 | 合肥杰事杰新材料股份有限公司 | A kind of polyethylene terephthalate composition and preparation method thereof |
| CN107964227A (en) * | 2017-12-21 | 2018-04-27 | 安徽悦尔伟塑料机械有限公司 | Automotive compounded console and preparation method thereof |
| CN107936499A (en) * | 2017-12-21 | 2018-04-20 | 安徽悦尔伟塑料机械有限公司 | Automotive compounded console and preparation method thereof |
| CN109161174A (en) * | 2018-09-20 | 2019-01-08 | 安徽江淮汽车集团股份有限公司 | A kind of low VOC and high performance PBT composite and preparation method thereof |
| CN110240786A (en) * | 2019-05-08 | 2019-09-17 | 南通开普乐工程塑料有限公司 | A kind of PBT composite and preparation method thereof with good laser mark performance |
| CN112980150A (en) * | 2019-12-17 | 2021-06-18 | 华域视觉科技(上海)有限公司 | Molybdenum disulfide modified PBT glass fiber material, and preparation method and application thereof |
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