CN102911464A - Halogen-free flame-resistant composite plastic with corrosion resistance and preparation method thereof - Google Patents
Halogen-free flame-resistant composite plastic with corrosion resistance and preparation method thereof Download PDFInfo
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- CN102911464A CN102911464A CN 201110225103 CN201110225103A CN102911464A CN 102911464 A CN102911464 A CN 102911464A CN 201110225103 CN201110225103 CN 201110225103 CN 201110225103 A CN201110225103 A CN 201110225103A CN 102911464 A CN102911464 A CN 102911464A
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Abstract
The invention relates to halogen-free flame-resistant composite plastic with corrosion resistance. The halogen-free flame-resistant composite plastic is characterized by being prepared from the following components by weight percentage: 50-65 percent of Teflon, 2-5 percent of POB polyester alloy powder, 5-20 percent of graphite, 2-5 percent of molybdenum disulfide and 30-50 percent of halogen-free flame-resistant master batch. The invention also relates to a preparation method of the halogen-free flame-resistant composite plastic with corrosion resistance. The halogen-free flame-resistant composite plastic has the advantages of easiness in material obtaining, low cost and good combination property and is suitable for conditions of high corrosivity, high temperature, high abrasiveness and the like. The waste disposal of the plastic has certain of environment digestion performance and is harmless to the human body.
Description
One, technical field
The invention belongs to the engineering materials technical field, relate to a kind of model engineering plastic, relate in particular to a kind of halogen-free flameproof composite plastic with erosion resistance and preparation method thereof.
Two, background technology
Green engineering more and more is subjected to human favor, but the Partial Elements that traditional material industry is used and compound can cause in various degree harm to environment and biosphere, and it is particularly important that the use of green material seems.At present Polybrominated biphenyl and polybromodiphenyl ether be as main fire retardant, and thyroid function, reproductive function, neural function and the immunologic function of human body all had obvious injury.Along with the increase of sulphur content in the petroleum chemical industry process for processing feed composition, to the corrosion aggravation of equipment, the spare and accessory parts seriously corroded, various toxic and harmfuls leak, and often cause the stoppage in transit of equipment, and serious also can endanger personnel safety.The price of some corrosion-resistant and high-temperature resistant metals is very expensive in the market, some material even domestic can't production.
Three, summary of the invention
For above-mentioned shortcoming, the object of the present invention is to provide a kind of corrosion-resistant, cost is low, resistant to elevated temperatures halogen-free flameproof composite plastic and preparation method thereof.
Technology contents of the present invention is, a kind of halogen-free flameproof composite plastic with erosion resistance, it is characterized in that by the component of following weight per-cent formulated: tetrafluoroethylene 50%～65%, POB polyester alloy powder 2%～5%, graphite 5%～20%, molybdenumdisulphide 2%～5%, halogen-free flameproof masterbatch 30%～50%.
Described halogen-free flameproof masterbatch is that its preparation process is as follows take calcium hydroxide as main halogen-free fire retardant plastic mastre batch:
(1) alkaline inorganic powder calcium hydroxide is placed in the high-speed mixer, under 110～150 ℃, carry out stirring and drying;
(2) keep stirring velocity, add the coupling agent that accounts for alkaline inorganic powder calcium hydroxide 0.1～5% and carry out the surface coating;
(3) add the fire retarding synergist that accounts for alkaline inorganic powder calcium hydroxide 2～100%, continue to stir 2～5min;
(4) add macromolecule wax and 25% matrix resin that accounts for alkaline inorganic powder calcium hydroxide 0.1～5%, extruding pelletization makes halogen-free fire retardant plastic mastre batch behind the stirring 10min.
Described coupling agent refers to Aluminate, lipid acid, Fatty Alcohol(C12-C14 and C12-C18), organo silane coupling agent, and the surface coats 6～10min;
Described fire retarding synergist refers to the magnesium hydroxide of modification, aluminium hydroxide or the micro encapsulation red phosphorus that this property is crossed.
Its screening formulation is: tetrafluoroethylene: 50%, POB:3%, and graphite: 10%, molybdenumdisulphide: 2%, halogen-free flameproof masterbatch 35%.
Another object of the present invention is to offer a kind of preparation method with halogen-free flameproof composite plastic of erosion resistance, its method is: after tetrafluoroethylene, POB, graphite and the molybdenumdisulphide of above-mentioned prescription is mixed, be under 36～37MPa effect at pressing pressure, 85～90 minutes dwell times, be pressed into model, add the halogen-free flameproof masterbatch, stir 10min; Then place sintering oven, temperature is risen to 370～380 ℃ of insulation 145～150min by room temperature by 313～327 ℃, then cooling is incubated 25～30 minutes after being down to 327 ℃ by 380 ℃, continues to be cooled to room temperature again and namely gets composite plastic of the present invention.
Preferred pressing process: pressing pressure P=37Mpa, 90 minutes dwell times;
Preferred sintering process: insulation was 30 minutes after sintering temperature rose to 327 ℃ by room temperature, was warming up to 380 ℃ of insulations 150 minutes again, began afterwards cooling, be down to 327 ℃ by 380 ℃ after insulation 30 minutes, continue again to be cooled to room temperature.Heat-up rate is 1 ℃/minute, and cooling rate is 1 ℃/minute, 12 hours 57 minutes total time spent of sintering.
The present invention compared with prior art has the following advantages:
1, material obtains easily, and is with low cost;
2, the high comprehensive performance of material is applicable to the conditions such as highly corrosive, high-temperature, high abradability;
3, utilize calcium hydroxide for main halogen-free fire retardant plastic mastre batch, when plastic refuse is processed, have certain environment-acceptable performance, harmless.
Four, embodiment
The below further describes and understands the present invention from embodiment, but be not limited to for embodiment.
1, material comprises by weight: tetrafluoroethylene: 50%, POB:3%, and graphite: 10%, molybdenumdisulphide: 2%, halogen-free flameproof masterbatch 35%.
2, preparation technology:
(1) pressing process: after tetrafluoroethylene, POB, graphite and the molybdenumdisulphide of above-mentioned prescription mixed, be under the 37MPa effect at pressing pressure, 90 minutes dwell times, be pressed into model, add the halogen-free flameproof masterbatch, stir 10min;
(2) sintering process: model is placed sintering oven, insulation was 30 minutes after temperature risen to 327 ℃ by room temperature, was warming up to 380 ℃ of insulations 150 minutes again, began afterwards cooling, insulation is 30 minutes after being down to 327 ℃ by 380 ℃, continues to be cooled to room temperature again and namely gets composite engineering plastics of the present invention.Heat-up rate is 1 ℃/minute, and cooling rate is 1 ℃/minute, 12 hours 57 minutes total time spent of sintering.
Claims (8)
1. halogen-free flameproof composite plastic with erosion resistance, it is characterized in that by the component of following weight per-cent formulated: tetrafluoroethylene 50%～65%, POB polyester alloy powder 2%～5%, graphite 5%～20%, molybdenumdisulphide 2%～5%, halogen-free flameproof masterbatch 30%～50%.
2. the halogen-free flameproof composite plastic with erosion resistance according to claim 1 is characterized in that, described halogen-free flameproof masterbatch is that its preparation process is as follows take calcium hydroxide as main halogen-free fire retardant plastic mastre batch:
(1) alkaline inorganic powder calcium hydroxide is placed in the high-speed mixer, under 110～150 ℃, carry out stirring and drying;
(2) keep stirring velocity, add the coupling agent that accounts for alkaline inorganic powder calcium hydroxide 0.1～5% and carry out the surface coating;
(3) add the fire retarding synergist that accounts for alkaline inorganic powder calcium hydroxide 2～100%, continue to stir 2～5min;
(4) add macromolecule wax and 25% matrix resin that accounts for alkaline inorganic powder calcium hydroxide 0.1～5%, extruding pelletization makes halogen-free fire retardant plastic mastre batch behind the stirring 10min.
3. the halogen-free flameproof composite plastic with erosion resistance according to claim 1 is characterized in that, described coupling agent refers to Aluminate, lipid acid, Fatty Alcohol(C12-C14 and C12-C18), organo silane coupling agent, and the surface coats 6～10min;
4. the halogen-free flameproof composite plastic with erosion resistance according to claim 1 is characterized in that, described fire retarding synergist refers to the magnesium hydroxide of modification, aluminium hydroxide or the micro encapsulation red phosphorus that this property is crossed.
5. the halogen-free flameproof composite plastic with erosion resistance according to claim 1 is characterized in that, its screening formulation is: tetrafluoroethylene: 50%, POB:3%, and graphite: 10%, molybdenumdisulphide: 2%, halogen-free flameproof masterbatch 35%.
According to claim 1 with 5 described preparation methods with halogen-free flameproof composite plastic of erosion resistance, it is characterized in that, its method is: after tetrafluoroethylene, POB, graphite and the molybdenumdisulphide of above-mentioned prescription is mixed, be under 36～37MPa effect at pressing pressure, 85～90 minutes dwell times, be pressed into model, add the halogen-free flameproof masterbatch, stir 10min; Then place sintering oven, temperature is risen to 370～380 ℃ of insulation 145～150min by room temperature by 313～327 ℃, then cooling is incubated 25～30 minutes after being down to 327 ℃ by 380 ℃, continues to be cooled to room temperature again and namely gets composite plastic of the present invention.
7. the preparation method with halogen-free flameproof composite plastic of erosion resistance according to claim 6 is characterized in that, preferred pressing process: pressing pressure P=37Mpa, 90 minutes dwell times;
8. the preparation method with halogen-free flameproof composite plastic of erosion resistance according to claim 6, it is characterized in that, preferred sintering process: insulation was 30 minutes after sintering temperature rose to 327 ℃ by room temperature, be warming up to again 380 ℃ of insulations 150 minutes, begin afterwards cooling, insulation is 30 minutes after being down to 327 ℃ by 380 ℃, continues to be cooled to room temperature again.Heat-up rate is 1 ℃/minute, and cooling rate is 1 ℃/minute, 12 hours 57 minutes total time spent of sintering.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110225103 CN102911464A (en) | 2011-08-05 | 2011-08-05 | Halogen-free flame-resistant composite plastic with corrosion resistance and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110225103 CN102911464A (en) | 2011-08-05 | 2011-08-05 | Halogen-free flame-resistant composite plastic with corrosion resistance and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322339A (en) * | 2013-05-31 | 2013-09-25 | 镇江天信电器有限公司 | Corrosion-resistant steel pipe for water heater |
| CN104616804A (en) * | 2014-12-31 | 2015-05-13 | 东莞市高能磁电技术有限公司 | Halogen-free and flame-proof insulating power cable employing polytetrafluoroethylene composite material |
| CN107868370A (en) * | 2017-11-25 | 2018-04-03 | 郑州莉迪亚医药科技有限公司 | A kind of fire proofing and its preparation method and application |
| CN108641245A (en) * | 2018-05-16 | 2018-10-12 | 温州应飞应用工程塑料有限公司 | A kind of PTFE of heat resistant and wear resistant |
-
2011
- 2011-08-05 CN CN 201110225103 patent/CN102911464A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322339A (en) * | 2013-05-31 | 2013-09-25 | 镇江天信电器有限公司 | Corrosion-resistant steel pipe for water heater |
| CN104616804A (en) * | 2014-12-31 | 2015-05-13 | 东莞市高能磁电技术有限公司 | Halogen-free and flame-proof insulating power cable employing polytetrafluoroethylene composite material |
| CN107868370A (en) * | 2017-11-25 | 2018-04-03 | 郑州莉迪亚医药科技有限公司 | A kind of fire proofing and its preparation method and application |
| CN108641245A (en) * | 2018-05-16 | 2018-10-12 | 温州应飞应用工程塑料有限公司 | A kind of PTFE of heat resistant and wear resistant |
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Application publication date: 20130206 |