CN105131573A - Novel high-temperature-resistant flame-retardant polyether urethane/PVC cross-linked cable material and preparation method thereof - Google Patents
Novel high-temperature-resistant flame-retardant polyether urethane/PVC cross-linked cable material and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a novel high-temperature-resistant flame-retardant polyether urethane/PVC cross-linked cable material. The novel high-temperature-resistant flame-retardant polyether urethane/PVC cross-linked cable material is characterized by being prepared from the following raw materials in parts by weight: 100-102 parts of polyether urethane, 20-21.5 parts of aluminum diethylphosphinate, 17-18 parts of melamine cyanurate, 4.3-4.5 parts of aluminium titanate, 50-52 parts of PVC, 1.6-1.8 parts of a cross-linking agent TAIC, 6-7 parts of calcium stearate, 20-22 parts of acetyl tributyl citrate, 1-1.2 parts of hexadecyl trimethyl ammonium bromide, 10-12 parts of montmorillonite, 2-3 parts of canola oil, 1-2 parts of olein, 7-8 parts of glass fibers, 7-9 parts of polystyrene and 1-2 parts of polymethyl siloxane. According to the novel high-temperature-resistant flame-retardant polyether urethane/PVC cross-linked cable material, after polyether urethane is subjected to flame-retardant modification, and organic montmorillonite, glass fibers, polystyrene and other ingredients are co-mixed with the polyether urethane subjected to flame-retardant modification, so that the dispersion is uniform, the thermal stability of a polymer is improved, and degradation of the polymer is delayed.
Description
Technical field
The present invention relates to technical field of polymer materials, particularly relate to a kind of novel fire resistant flame retardant polyether type of polyurethane/PVC crosslinked electric cable material and preparation method thereof.
Background technology
Thermoplastic polyurethane is the elastomer material be polymerized by vulcabond, polyvalent alcohol and chainextender, and it has high strength, snappiness, wear-resisting, oil resistant, weather, the feature such as low temperature resistant, soft, and this is that comprehensive any rubber and plastics do not possess entirely.Polyether-type and the large class of polyester type two can be divided into according to molecular structure, because the environment for use of cable is more complicated, the work-ing life required is more than 10 years, and the high temperature anti-hydrolytic performance of PAUR is poor, and low temperature flexibility is also not as good as polyether-type, therefore in field of cables many uses polyether polyurethane material.The oxygen index of polyether polyurethane material only has 18%, belong to inflammable material, and there is dense smoke and with toxic gas and serious molten drop during burning, and the price of urethane is relatively high, which limits the application on cable industry, therefore need to carry out above flame-retardant modified and composition to polyether(poly)urethane cross-linking modified.The cost of PVC is low, application wide, is a kind of important general-purpose plastics, have research by polyether(poly)urethane and PVC blended, obtain that cost is low, the material of excellent processing performance.The present invention then wishes to be undertaken cross-linking modified by polyether(poly)urethane and PVC, by the interpolation of flame-retardant composition, prepare that a kind of cost is low, applied range, fire-retardant fireproof excellent performance, processing fluidity is good, resistance to low temperature is good flexible cable sheath material.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of novel fire resistant flame retardant polyether type of polyurethane/PVC crosslinked electric cable material and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of novel fire resistant flame retardant polyether type of polyurethane/PVC crosslinked electric cable material, is made up of the raw material of following weight part: polyether(poly)urethane 100-102, aluminum diethylphosphinate 20-21.5, melamine cyanurate 17-18, aluminium titanates 4.3-4.5, PVC50-52, linking agent TAIC1.6-1.8, calcium stearate 6-7, tributyl acetylcitrate 20-22, cetyl trimethylammonium bromide 1-1.2, polynite 10-12, Canola oil 2-3, triolein 1-2, glass fibre 7-8, polystyrene 7-9, polymethyl siloxane 1-2.
Described a kind of novel fire resistant flame retardant polyether type of polyurethane/PVC crosslinked electric cable material, be made up of following concrete steps:
(1) aluminum diethylphosphinate, melamine cyanurate, aluminium titanates are put into baking oven with the temperature of 80 DEG C drying 2 hours, airtightly be cooled to room temperature, add after taking-up in high-speed mixer, after stirring 10 minutes with the speed of 1000 revs/min under normal temperature, continue the calcium stearate adding half amount, be heated to 80 DEG C, stir 15 minutes with the speed of 1200 revs/min, obtain finely dispersed compound flame retardant;
(2) polyether(poly)urethane being placed on temperature is in the air dry oven of 90 DEG C dry 3 hours, sealing sends into two roller mill after taking out after being cooled to room temperature, before controlling, roll temperature is 130 DEG C, rear roll temperature is 130 DEG C, and begin to pratise 2-3 minute, then adds the compound flame retardant that step (1) obtains, pour out after continuing to begin to pratise 8 minutes, send in twin screw extruder, be extruding pelletization under the condition of 140 DEG C in temperature, obtain flame-retardant modified polyether(poly)urethane masterbatch;
(3) ball mill is put in polynite and cetyl trimethylammonium bromide, be heated to 60 DEG C, it is stand-by that ball milling obtained organic modification montmonrillonite after 2 hours; Glass fibre is pulverized, cross 200 mesh sieves, then add in high-speed mixer, add Canola oil, triolein, after stirring 10 minutes with the speed of 1000 revs/min at the temperature of 90 DEG C, continue to add above-mentioned organic modification montmonrillonite, polystyrene, continue mixing to pour out after 15 minutes, send into after being cooled to room temperature in twin screw extruder, add flame-retardant modified polyether(poly)urethane masterbatch in step (2), mix after 8 minutes, extruding pelletization at the temperature of 160 DEG C, obtain high temperature resistant enhancement type flame retardant polyether type of polyurethane master batch;
(4) by PVC, linking agent TAIC, tributyl acetylcitrate, residue calcium stearate and all the other remaining components join in high-speed mixer, temperature control 100 DEG C, 10 minutes are stirred with the speed of 1000 revs/min, then material is put into cold mixer, stir with the speed of 200 revs/min, until add the high temperature resistant enhancement type flame retardant polyether type of polyurethane master batch that step (3) obtains when material is cooled to room temperature, discharging after mixing 15 minutes with the speed of 1000 revs/min at normal temperatures, again the material mixed is sent in parallel double-screw extruder, crosslinked 20 minutes of mixing, controlling extrusion temperature is 145 DEG C, extruding pelletization and get final product.
Advantage of the present invention is: the present invention adopts aluminum diethylphosphinate and melamine cyanurate to be main flame retardant in the modification of polyether(poly)urethane, composite aluminium titanates, synergy, effectively can improve the neat coal amout of combustion processes, and make layer of charcoal finer and close, also reduce maximum heat rate of release simultaneously, demonstrate excellent fire-retardant fireproof effect; Recycling PVC and modified polyether(poly)urethane are cross-linked, and flame retardant properties strengthens further, not only maintains urethane softness, wear-resisting, low temperature resistant character, reduces cost simultaneously, improve the thermostability of crosslinked material, be more suitable for the market requirement.
The present invention polyether(poly)urethane is carried out flame-retardant modified after, utilize the compositions such as organic modification montmonrillonite, glass fibre, polystyrene blended with it, be evenly distributed in flame-retardant modified polyether(poly)urethane masterbatch, improve the thermostability of polymkeric substance, the retardation Degradation of polymkeric substance.
Embodiment
A kind of novel fire resistant flame retardant polyether type of polyurethane/PVC crosslinked electric cable material, is made up of the raw material of following weight part (kilogram): polyether(poly)urethane 100, aluminum diethylphosphinate 20, melamine cyanurate 17, aluminium titanates 4.3, PVC50, linking agent TAIC1.6, calcium stearate 6, tributyl acetylcitrate 20, cetyl trimethylammonium bromide 1, polynite 10, Canola oil 2, triolein 1, glass fibre 7, polystyrene 7, polymethyl siloxane 1.
Described a kind of novel fire resistant flame retardant polyether type of polyurethane/PVC crosslinked electric cable material, be made up of following concrete steps:
(1) aluminum diethylphosphinate, melamine cyanurate, aluminium titanates are put into baking oven with the temperature of 80 DEG C drying 2 hours, airtightly be cooled to room temperature, add after taking-up in high-speed mixer, after stirring 10 minutes with the speed of 1000 revs/min under normal temperature, continue the calcium stearate adding half amount, be heated to 80 DEG C, stir 15 minutes with the speed of 1200 revs/min, obtain finely dispersed compound flame retardant;
(2) polyether(poly)urethane being placed on temperature is in the air dry oven of 90 DEG C dry 3 hours, sealing sends into two roller mill after taking out after being cooled to room temperature, before controlling, roll temperature is 130 DEG C, rear roll temperature is 130 DEG C, begins to pratise 3 minutes, then adds the compound flame retardant that step (1) obtains, pour out after continuing to begin to pratise 8 minutes, send in twin screw extruder, be extruding pelletization under the condition of 140 DEG C in temperature, obtain flame-retardant modified polyether(poly)urethane masterbatch;
(3) ball mill is put in polynite and cetyl trimethylammonium bromide, be heated to 60 DEG C, it is stand-by that ball milling obtained organic modification montmonrillonite after 2 hours; Glass fibre is pulverized, cross 200 mesh sieves, then add in high-speed mixer, add Canola oil, triolein, after stirring 10 minutes with the speed of 1000 revs/min at the temperature of 90 DEG C, continue to add above-mentioned organic modification montmonrillonite, polystyrene, continue mixing to pour out after 15 minutes, send into after being cooled to room temperature in twin screw extruder, add flame-retardant modified polyether(poly)urethane masterbatch in step (2), mix after 8 minutes, extruding pelletization at the temperature of 160 DEG C, obtain high temperature resistant enhancement type flame retardant polyether type of polyurethane master batch;
(4) by PVC, linking agent TAIC, tributyl acetylcitrate, residue calcium stearate and all the other remaining components join in high-speed mixer, temperature control 100 DEG C, 10 minutes are stirred with the speed of 1000 revs/min, then material is put into cold mixer, stir with the speed of 200 revs/min, until add the high temperature resistant enhancement type flame retardant polyether type of polyurethane master batch that step (3) obtains when material is cooled to room temperature, discharging after mixing 15 minutes with the speed of 1000 revs/min at normal temperatures, again the material mixed is sent in parallel double-screw extruder, crosslinked 20 minutes of mixing, controlling extrusion temperature is 145 DEG C, extruding pelletization and get final product.
By the production of materials application of the present invention in cable, after testing, the index reached is as follows for cable product: tensile strength is 25.9MPa, and fracture extension rate is 315%, and oxygen index >=30%, flame retardant properties reaches UL-94V-0 level.
Claims (2)
1. novel fire resistant flame retardant polyether type of polyurethane/PVC crosslinked electric cable material, it is characterized in that, be made up of the raw material of following weight part: polyether(poly)urethane 100-102, aluminum diethylphosphinate 20-21.5, melamine cyanurate 17-18, aluminium titanates 4.3-4.5, PVC50-52, linking agent TAIC1.6-1.8, calcium stearate 6-7, tributyl acetylcitrate 20-22, cetyl trimethylammonium bromide 1-1.2, polynite 10-12, Canola oil 2-3, triolein 1-2, glass fibre 7-8, polystyrene 7-9, polymethyl siloxane 1-2.
2. a kind of novel fire resistant flame retardant polyether type of polyurethane/PVC crosslinked electric cable material according to claim 1, is characterized in that, be made up of following concrete steps:
(1) aluminum diethylphosphinate, melamine cyanurate, aluminium titanates are put into baking oven with the temperature of 80 DEG C drying 2 hours, airtightly be cooled to room temperature, add after taking-up in high-speed mixer, after stirring 10 minutes with the speed of 1000 revs/min under normal temperature, continue the calcium stearate adding half amount, be heated to 80 DEG C, stir 15 minutes with the speed of 1200 revs/min, obtain finely dispersed compound flame retardant;
(2) polyether(poly)urethane being placed on temperature is in the air dry oven of 90 DEG C dry 3 hours, sealing sends into two roller mill after taking out after being cooled to room temperature, before controlling, roll temperature is 130 DEG C, rear roll temperature is 130 DEG C, and begin to pratise 2-3 minute, then adds the compound flame retardant that step (1) obtains, pour out after continuing to begin to pratise 8 minutes, send in twin screw extruder, be extruding pelletization under the condition of 140 DEG C in temperature, obtain flame-retardant modified polyether(poly)urethane masterbatch;
(3) ball mill is put in polynite and cetyl trimethylammonium bromide, be heated to 60 DEG C, it is stand-by that ball milling obtained organic modification montmonrillonite after 2 hours; Glass fibre is pulverized, cross 200 mesh sieves, then add in high-speed mixer, add Canola oil, triolein, after stirring 10 minutes with the speed of 1000 revs/min at the temperature of 90 DEG C, continue to add above-mentioned organic modification montmonrillonite, polystyrene, continue mixing to pour out after 15 minutes, send into after being cooled to room temperature in twin screw extruder, add flame-retardant modified polyether(poly)urethane masterbatch in step (2), mix after 8 minutes, extruding pelletization at the temperature of 160 DEG C, obtain high temperature resistant enhancement type flame retardant polyether type of polyurethane master batch;
(4) by PVC, linking agent TAIC, tributyl acetylcitrate, residue calcium stearate and all the other remaining components join in high-speed mixer, temperature control 100 DEG C, 10 minutes are stirred with the speed of 1000 revs/min, then material is put into cold mixer, stir with the speed of 200 revs/min, until add the high temperature resistant enhancement type flame retardant polyether type of polyurethane master batch that step (3) obtains when material is cooled to room temperature, discharging after mixing 15 minutes with the speed of 1000 revs/min at normal temperatures, again the material mixed is sent in parallel double-screw extruder, crosslinked 20 minutes of mixing, controlling extrusion temperature is 145 DEG C, extruding pelletization and get final product.
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| CN201510602078.5A CN105131573A (en) | 2015-09-21 | 2015-09-21 | Novel high-temperature-resistant flame-retardant polyether urethane/PVC cross-linked cable material and preparation method thereof |
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| CN201510602078.5A CN105131573A (en) | 2015-09-21 | 2015-09-21 | Novel high-temperature-resistant flame-retardant polyether urethane/PVC cross-linked cable material and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106221195A (en) * | 2016-08-31 | 2016-12-14 | 安徽楚江高新电材有限公司 | A kind of acid and alkali-resistance Antistatic type cable material and preparation method thereof |
| CN108192320A (en) * | 2017-11-27 | 2018-06-22 | 广德粤华塑业制品有限公司 | A kind of environmentally friendly Masterbatch of PU leather |
| CN108642898A (en) * | 2018-05-21 | 2018-10-12 | 昆山阿基里斯人造皮有限公司 | A kind of novel crosslinked PVC artificial leather and preparation method thereof |
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| CN101058669A (en) * | 2007-04-18 | 2007-10-24 | 杭州捷尔思阻燃化工有限公司 | Flame-proof thermoplastic polyurethane mixture containing halogen-free expanded fire retardant |
| CN102120875A (en) * | 2011-01-10 | 2011-07-13 | 杭州捷尔思阻燃化工有限公司 | High-temperature-resistant high-moisture-resistant halogen-free flame-retardant polyester type polyurethane thermoplastic elastomer composition |
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| CN102120875A (en) * | 2011-01-10 | 2011-07-13 | 杭州捷尔思阻燃化工有限公司 | High-temperature-resistant high-moisture-resistant halogen-free flame-retardant polyester type polyurethane thermoplastic elastomer composition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106221195A (en) * | 2016-08-31 | 2016-12-14 | 安徽楚江高新电材有限公司 | A kind of acid and alkali-resistance Antistatic type cable material and preparation method thereof |
| CN108192320A (en) * | 2017-11-27 | 2018-06-22 | 广德粤华塑业制品有限公司 | A kind of environmentally friendly Masterbatch of PU leather |
| CN108642898A (en) * | 2018-05-21 | 2018-10-12 | 昆山阿基里斯人造皮有限公司 | A kind of novel crosslinked PVC artificial leather and preparation method thereof |
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