CN105273352A - Halogen-free flame-retardant TPE material and preparation method thereof - Google Patents
Halogen-free flame-retardant TPE material and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a halogen-free flame-retardant TPE material. The halogen-free flame-retardant TPE material is prepared from, by weight, 20-40 parts of SEBS, 20-40 parts of polyphenyl ether, 5-10 parts of PE, 5-10 parts of PP, 0-10 parts of polyolefin elastomer, 20-40 parts of halogen-free flame retardant, 4-10 parts of plasticizer, 1-3 parts of antioxidant, 1-3 parts of light stabilizing agents and 1-3 parts of processing auxiliary agents. The halogen-free flame-retardant TPE material has good flame retardation performance and meanwhile is free of halogen, low in toxicity and good in comprehensive property.
Description
Technical field
The present invention relates to TPE field of material technology, particularly a kind of halogen-free flameproof TPE material and preparation method thereof.
Background technology
At present, increasing people pays close attention to environmental protection, and PVC material is because of containing halogen, and the hydrogen halide of releasing during burning is comparatively large to person injury, does not burn to death, but is smoked extremely by poison gas, so the product of Halogen goes to be inevitable for PVC material when facing fire.
Due to superior product performance, complete processing easily, increasing TPE material is applied to the industries such as automobile, household electrical appliances, electric wire now, but traditional TPE material, due to the reason of self base material and softening agent, major part material is flammable, at the Material Field that some are special, often requires to have combustibility to material itself.
But TPE material is due to the defect of himself, as poor in high thermal resistance, the resistance to property such as fire-retardant is weak etc., limits Application Areas and the industry development of TPE material.By adding fire retardant in TPE material, to improve its flame retardant properties be a kind of effective means, but the fire retardant material on market generally has two kinds: a kind of be chloride, bromine have halogen flame-proof elastomer; A kind of is the high filled elastomer of filling mineral filler in a large number.This bi-material has larger drawback, having halogen flame-proof elastomer can produce a large amount of toxic gas when burning, in use, have larger hidden danger, and European Union ROSH instruction will have halogen clearly to foreclose especially; High filled elastomer, often can not be well completely compatible with material itself due to its a large amount of inorganic fill, makes material mechanical performance very poor, separates out problem serious.
Therefore, study a kind of halogen-free environmental efficient flame-retarding agent, and fire-retardant finish is carried out to TPE material, increase the difficulty of igniting of material with this, the speed of propagation of flame and the burst size of smog when reducing TPE material combustion, and can not the mechanical mechanics property of TPE material and processing characteristics be very important.
Summary of the invention
The present invention proposes a kind of halogen-free flameproof TPE material and preparation method thereof, described halogen-free flameproof TPE material has good flame retardant properties, and simultaneously Halogen, low toxicity, over-all properties are good.
A kind of halogen-free flameproof TPE material that the present invention proposes, its raw material comprises by weight:
In a specific embodiment, the weight part of SEBS can be 21,23,25,27,32,34,36,38; The weight part of polyphenylene oxide can be 21,23,25,27,32,34,36,38; The weight part of PE can be 5.9,6.3,6.8,7.1,8.7,9.3,9.8; The weight part of PP can be 5.9,6.3,6.8,7.1,8.7,9.3,9.8; The weight part of polyolefin elastomer can be 1,1.5,2.8,3.6,4.5,5.9,7.1,8.6,9; The weight part of halogen-free flame retardants can be 21,23,25,27,32,34,36,38; The weight part of softening agent can be 4.5,5.9,6.3,6.8,7.1,8.7,9.3,9.8; The weight part of oxidation inhibitor can be 1.2,1.5,1.7,1.9,2.1,2.3,2.5,2.8; The weight part of photostabilizer can be 1.2,1.5,1.7,1.9,2.1,2.3,2.5,2.8; The weight part of processing aid can be 1.2,1.5,1.7,1.9,2.1,2.3,2.5,2.8.
Preferably, described SEBS is the mixture of high molecular SEBS, middle-molecular-weihydroxyethyl SEBS and lower molecular weight SEBS, the weight-average molecular weight of described high molecular SEBS is 160000-240000, the weight-average molecular weight of middle-molecular-weihydroxyethyl SEBS is the weight-average molecular weight of 100000-150000, lower molecular weight SEBS is 50000-95000; Preferably, the weight proportion of high molecular SEBS, middle-molecular-weihydroxyethyl SEBS and lower molecular weight SEBS is 1:3-5:1-3.
Preferably, the intrinsic viscosity of described polyphenylene oxide is 0.1-0.80dl/g.
Preferably, described halogen-free flame retardants is modified expanded type fire retardant IFR; Preferably, prepare described modified expanded type fire retardant IFR to comprise: expansion type flame retardant IFR is added in dehydrated alcohol, ultrasonic disperse, obtain suspension liquid; Added by silane coupling agent in dehydrated alcohol after dilution evenly, adding acid for adjusting pH is 3-5, obtains diluent; Described diluent is added in described suspension liquid and stirs, send in ball mill and carry out ball milling modification, obtain modified solution, described modified solution is dried, sieves, obtain described modified expanded type fire retardant IFR; Preferably, described expansion type flame retardant IFR is ammonium polyphosphate-tetramethylolmethane-trimeric cyanamide or ammonium polyphosphate-tetramethylolmethane-polymeric amide; Described silane coupling agent is KH-550 or KH-560.
Modification is carried out by adding silane coupling agent in the expansion type flame retardant IFR of Halogen, low toxicity, utilize the silane coupling agent under minor amount of water exists situation that hydrolysis occurs and generate silica alcohol groups, the ammonium polyphosphate in meanwhile demi-inflation type fire retardant generates phosphoric acid generation esterification in acidic conditions situation; On the one hand, the surface in IFR is by crosslinking reaction successfully organic group in grafting, and the oleophylic performance of organic group substantially improves the interface compatibility between IFR and polymeric matrix.On the other hand, the polymerization degree of IFR also can have increase to a certain degree by the formation of this crosslinking structure, and the high polymerization degree also can increase the viscosity of IFR system and mutual interactively.
Preferably, prepare described modified expanded type fire retardant IFR to comprise: add in dehydrated alcohol by 100 parts of expansion type flame retardant IFR by weight, ultrasonic disperse 0.2-0.5h, obtains suspension liquid; Added by 1-3 part silane coupling agent in dehydrated alcohol after dilution evenly, adding Glacial acetic acid adjustment pH is 3-5, obtains diluent; Described diluent is added in described suspension liquid and stirs, send in ball mill and carry out ball milling modification 3-5h, obtain modified solution, described modified solution is dried, sieves, obtain described modified expanded type fire retardant IFR.
Preferably, described polyolefin elastomer is terpolymer EP rubber or ethylene-octene copolymer.
Preferably, described oxidation inhibitor is Hinered phenols antioxidant and sulphur ester antioxidant or the composite gained composite antioxidant of phosphite ester kind antioxidant; Preferably, described Hinered phenols antioxidant is selected from 1,3,5-trimethylammonium-2,4,6-tri-(3,5-di-tert-butyl-4-hydroxybenzyl) benzene, 1,1,3-tri-(2-methyl-4-hydroxyl-5-t-butyl-phenyl) butane, four [3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, one or more in β-(3,5-di-tert-butyl-4-hydroxy phenyl) propionic acid octadecyl ester; Described sulphur ester antioxidant be selected from Tyox B, thio-2 acid two (14 ester) one or more; Described phosphite ester kind antioxidant be selected from three (2,4-DTBP) phosphorous acid ester, two (3,5-di-tert-butyl-phenyl) pentaerythritol diphosphites one or more.
Preferably, described softening agent is one or more in naphthenic base white oil, aromatic base white oil, paraffinic base white oil;
Preferably, described photostabilizer is one or more in hindered amine light stabilizer, triazines as light stabilizer, organic nickel complex compound;
Preferably, described processing aid is one or more in silicone powder, silicone master batch, silicone oil, vinyl bis-stearamides, stearate series lubricant agent.
A preparation method for halogen-free flameproof TPE material, comprising: SEBS, polyphenylene oxide, PE, PP, polyolefin elastomer, fire retardant, softening agent, oxidation inhibitor, photostabilizer and processing aid are added in kneader and mediate, obtain Preblend; Described Preblend sent in twin screw extruder and plasticate, pelletizing, obtains described halogen-free flameproof TPE material.
Preferably, the kneading temperature of carrying out mediating in kneader is 100-130 DEG C, and kneading time is 10-15min; Preferably, the processing temperature of carrying out plasticating in twin screw extruder is 200-250 DEG C, screw speed 300-350r/min.
In the present invention, on the conventional constituents basis of TPE material, add polyphenylene oxide and halogen-free flame retardants, polyphenylene oxide, as carbon dewatering agent, can form carbon-coating at material surface rapidly, has excellent certainly to put out function, selection adds modified expanded type fire retardant IFR as halogen-free flame retardants, utilize silane coupling agent to Halogen, the IFR of low toxicity carries out modification, the organic element and the group that belong to silane coupling agent has been there is on the surface of IFR, serve the function served as bridge connecting organic phase and inorganic phase thus, considerably increase the dispersing property of expansion type flame retardant IFR, and the dispersing property of this excellence, make modified expansion type flame retardant IFR single fire retardant relative to the fire retardant of the composite formation of polyphenylene oxide can at the fast rapid-result charcoal of TPE material surface, effectively can stop burning, prevent the release of melting drippage and suppressing cigarette.Effectively can be combined with matrix by this fire retardant, can not bring precipitation problem, its outstanding advantage all meets the environmental requirement of society, and can not have an impact to the mechanical mechanics property of TPE material and processing characteristics.In addition the SEBS of three sections of weight-average molecular weight of specific proportioning is also added in the application, combine the advantage of the raw materials such as PE, PP, polyolefin elastomer, while improving the performance of the intermingling materials such as conventional P E, PP, polyolefin elastomer, the softening agent of the certain content added, oxidation inhibitor and photostabilizer and processing aid also make TPE material have good processing characteristics and ageing resistance, not only rebound resilience, toughness and weathering resistance are all fabulous for the described TPE material prepared, but also can recycling use, meet circular economy concept.
Embodiment
Below by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
A kind of halogen-free flameproof TPE material, it is characterized in that, its raw material comprises by weight:
Wherein, described SEBS is the mixture of high molecular SEBS, middle-molecular-weihydroxyethyl SEBS and lower molecular weight SEBS, the weight-average molecular weight of described high molecular SEBS is 160000, the weight-average molecular weight of middle-molecular-weihydroxyethyl SEBS is 150000, the weight-average molecular weight of lower molecular weight SEBS is 50000, and the weight proportion of high molecular SEBS, middle-molecular-weihydroxyethyl SEBS and lower molecular weight SEBS is 1:3:3; The intrinsic viscosity of described polyphenylene oxide is 0.1dl/g; Described halogen-free flame retardants is modified expanded type fire retardant IFR; Prepare described modified expanded type fire retardant IFR to comprise: add in dehydrated alcohol by 100 parts of expansion type flame retardant IFR by weight, ultrasonic disperse 0.2h, obtains suspension liquid; Added by 3 parts of silane coupling agents in dehydrated alcohol after dilution evenly, adding Glacial acetic acid adjustment pH is 3-5, obtains diluent; Described diluent is added in described suspension liquid and stirs, send in ball mill and carry out ball milling modification 3h, obtain modified solution, described modified solution is dried, sieves, obtain described modified expanded type fire retardant IFR; Described oxidation inhibitor is the composite gained composite antioxidant of Hinered phenols antioxidant and sulphur ester antioxidant, and described Hinered phenols antioxidant is 1,3,5-trimethylammonium-2,4,6-tri-(3,5-di-tert-butyl-4-hydroxybenzyl) benzene, described sulphur ester antioxidant is Tyox B.
Embodiment 2
A kind of halogen-free flameproof TPE material, it is characterized in that, its raw material comprises by weight:
Wherein, described SEBS is the mixture of high molecular SEBS, middle-molecular-weihydroxyethyl SEBS and lower molecular weight SEBS, the weight-average molecular weight of described high molecular SEBS is 240000, the weight-average molecular weight of middle-molecular-weihydroxyethyl SEBS is 100000, the weight-average molecular weight of lower molecular weight SEBS is 95000, and the weight proportion of high molecular SEBS, middle-molecular-weihydroxyethyl SEBS and lower molecular weight SEBS is 1:5:1; The intrinsic viscosity of described polyphenylene oxide is 0.8dl/g; Described halogen-free flame retardants is modified expanded type fire retardant IFR; Prepare described modified expanded type fire retardant IFR to comprise: add in dehydrated alcohol by 100 parts of expansion type flame retardant IFR by weight, ultrasonic disperse 0.5h, obtains suspension liquid; Added by 1 part of silane coupling agent in dehydrated alcohol after dilution evenly, adding Glacial acetic acid adjustment pH is 3-5, obtains diluent; Described diluent is added in described suspension liquid and stirs, send in ball mill and carry out ball milling modification 5h, obtain modified solution, described modified solution is dried, sieves, obtain described modified expanded type fire retardant IFR; Described oxidation inhibitor is the composite gained composite antioxidant of Hinered phenols antioxidant and phosphite ester kind antioxidant, and described Hinered phenols antioxidant is 1,1,3-tri-(2-methyl-4-hydroxyl-5-t-butyl-phenyl) butane, described phosphite ester kind antioxidant is two (3,5-di-tert-butyl-phenyl) pentaerythritol diphosphites.
Embodiment 3
A kind of halogen-free flameproof TPE material, it is characterized in that, its raw material comprises by weight:
Wherein, described SEBS is the mixture of high molecular SEBS, middle-molecular-weihydroxyethyl SEBS and lower molecular weight SEBS, the weight-average molecular weight of described high molecular SEBS is 200000, the weight-average molecular weight of middle-molecular-weihydroxyethyl SEBS is 120000, the weight-average molecular weight of lower molecular weight SEBS is 70000, and the weight proportion of high molecular SEBS, middle-molecular-weihydroxyethyl SEBS and lower molecular weight SEBS is 1:4:2; The intrinsic viscosity of described polyphenylene oxide is 0.4dl/g; Described halogen-free flame retardants is modified expanded type fire retardant IFR, prepares described modified expanded type fire retardant IFR and comprises: add in dehydrated alcohol by 100 parts of expansion type flame retardant IFR by weight, ultrasonic disperse 0.3h, obtains suspension liquid; Added by 2 parts of silane coupling agents in dehydrated alcohol after dilution evenly, adding Glacial acetic acid adjustment pH is 3-5, obtains diluent; Described diluent is added in described suspension liquid and stirs, send in ball mill and carry out ball milling modification 4h, obtain modified solution, described modified solution is dried, sieves, obtain described modified expanded type fire retardant IFR; Described polyolefin elastomer is ethylene-octene copolymer; Described oxidation inhibitor is the composite gained composite antioxidant of Hinered phenols antioxidant and sulphur ester antioxidant, and described Hinered phenols antioxidant is four [3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester; Described sulphur ester antioxidant is thio-2 acid two (14 ester); Described softening agent is paraffinic base white oil; Described photostabilizer is organic nickel complex compound; Described processing aid is silicone oil.
Embodiment 4
A kind of halogen-free flameproof TPE material, it is characterized in that, its raw material comprises by weight:
Wherein, described SEBS is the mixture of high molecular SEBS, middle-molecular-weihydroxyethyl SEBS and lower molecular weight SEBS, the weight-average molecular weight of described high molecular SEBS is 180000, the weight-average molecular weight of middle-molecular-weihydroxyethyl SEBS is 130000, the weight-average molecular weight of lower molecular weight SEBS is 80000, and the weight proportion of high molecular SEBS, middle-molecular-weihydroxyethyl SEBS and lower molecular weight SEBS is 1:3.5:2.5; The intrinsic viscosity of described polyphenylene oxide is 0.5dl/g; Described halogen-free flame retardants is modified expanded type fire retardant IFR, prepares described modified expanded type fire retardant IFR and comprises: add in dehydrated alcohol by 100 parts of expansion type flame retardant IFR by weight, ultrasonic disperse 0.4h, obtains suspension liquid; Added by 2 parts of silane coupling agents in dehydrated alcohol after dilution evenly, adding Glacial acetic acid adjustment pH is 3-5, obtains diluent; Described diluent is added in described suspension liquid and stirs, send in ball mill and carry out ball milling modification 3.5h, obtain modified solution, described modified solution is dried, sieves, obtain described modified expanded type fire retardant IFR; Described polyolefin elastomer is terpolymer EP rubber; Described oxidation inhibitor is the composite gained composite antioxidant of Hinered phenols antioxidant and phosphite ester kind antioxidant, and described Hinered phenols antioxidant is β-(3,5-di-tert-butyl-4-hydroxy phenyl) propionic acid octadecyl ester, described phosphite ester kind antioxidant is two (3,5-di-tert-butyl-phenyl) pentaerythritol diphosphites; Described softening agent is the mixture of naphthenic base white oil and paraffinic base white oil; Described photostabilizer is hindered amine light stabilizer; Described processing aid is the mixture of vinyl bis-stearamides and stearate series lubricant agent.
Described in above-described embodiment 1-4, the preparation method of halogen-free flameproof TPE material comprises: SEBS, polyphenylene oxide, PE, PP, polyolefin elastomer, fire retardant, softening agent, oxidation inhibitor, photostabilizer and processing aid are added in kneader and mediate, obtain Preblend; Described Preblend sent in twin screw extruder and plasticate, pelletizing, obtains described halogen-free flameproof TPE material, and the kneading temperature of wherein carrying out mediating in kneader is 100-130 DEG C, and kneading time is 10-15min; The processing temperature of carrying out plasticating in twin screw extruder is 200-250 DEG C, screw speed 300-350r/min.
TPE material described in above-described embodiment 1-4 is carried out performance test, and result is as shown in the table:
| Performance | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Shore hardness (A) | 80 | 89 | 85 | 90 |
| Tensile strength (MPa) | 14.3 | 12.5 | 11.8 | 13.6 |
| Elongation at break (%) | 250 | 300 | 260 | 280 |
| Flame retardant properties (3.0mm) | UL94-V0 | UL94-V0 | UL94-V0 | UL94-V0 |
In embodiment 1-4, on the conventional constituents basis of TPE material, add polyphenylene oxide and halogen-free flame retardants, polyphenylene oxide, as carbon dewatering agent, can form carbon-coating at material surface rapidly, has excellent certainly to put out function, selection adds modified expanded type fire retardant IFR as halogen-free flame retardants, utilize silane coupling agent to Halogen, the IFR of low toxicity carries out modification, the organic element and the group that belong to silane coupling agent has been there is on the surface of IFR, serve the function served as bridge connecting organic phase and inorganic phase thus, considerably increase the dispersing property of expansion type flame retardant IFR, and the dispersing property of this excellence, make modified expansion type flame retardant IFR single fire retardant relative to the fire retardant of the composite formation of polyphenylene oxide can at the fast rapid-result charcoal of TPE material surface, effectively can stop burning, prevent the release of melting drippage and suppressing cigarette.Effectively can be combined with matrix by this fire retardant, can not bring precipitation problem, its outstanding advantage all meets the environmental requirement of society, and can not have an impact to the mechanical mechanics property of TPE material and processing characteristics.In addition the SEBS of three sections of weight-average molecular weight of specific proportioning is also added in the application, combine the advantage of the raw materials such as PE, PP, polyolefin elastomer, while improving the performance of the intermingling materials such as conventional P E, PP, polyolefin elastomer, the softening agent of the certain content added, oxidation inhibitor and photostabilizer and processing aid also make TPE material have good processing characteristics and ageing resistance, not only rebound resilience, toughness and weathering resistance are all fabulous for the described TPE material prepared, but also can recycling use, meet circular economy concept.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (10)
1. a halogen-free flameproof TPE material, is characterized in that, its raw material comprises by weight:
2. halogen-free flameproof TPE material according to claim 1, it is characterized in that, described SEBS is the mixture of high molecular SEBS, middle-molecular-weihydroxyethyl SEBS and lower molecular weight SEBS, the weight-average molecular weight of described high molecular SEBS is 160000-240000, the weight-average molecular weight of middle-molecular-weihydroxyethyl SEBS is the weight-average molecular weight of 100000-150000, lower molecular weight SEBS is 50000-95000; Preferably, the weight proportion of high molecular SEBS, middle-molecular-weihydroxyethyl SEBS and lower molecular weight SEBS is 1:3-5:1-3.
3. the halogen-free flameproof TPE material according to claims 1 or 2, is characterized in that, the intrinsic viscosity of described polyphenylene oxide is 0.1-0.80dl/g.
4. the halogen-free flameproof TPE material according to any one of claim 1-3, is characterized in that, described halogen-free flame retardants is modified expanded type fire retardant IFR; Preferably, prepare described modified expanded type fire retardant IFR to comprise: expansion type flame retardant IFR is added in dehydrated alcohol, ultrasonic disperse, obtain suspension liquid; Added by silane coupling agent in dehydrated alcohol after dilution evenly, adding acid for adjusting pH is 3-5, obtains diluent; Described diluent is added in described suspension liquid and stirs, send in ball mill and carry out ball milling modification, obtain modified solution, described modified solution is dried, sieves, obtain described modified expanded type fire retardant IFR; Preferably, described expansion type flame retardant IFR is ammonium polyphosphate-tetramethylolmethane-trimeric cyanamide or ammonium polyphosphate-tetramethylolmethane-polymeric amide; Described silane coupling agent is KH-550 or KH-560.
5. halogen-free flameproof TPE material according to claim 4, is characterized in that, prepares described modified expanded type fire retardant IFR and comprises: add in dehydrated alcohol by 100 parts of expansion type flame retardant IFR by weight, ultrasonic disperse 0.2-0.5h, obtains suspension liquid; Added by 1-3 part silane coupling agent in dehydrated alcohol after dilution evenly, adding Glacial acetic acid adjustment pH is 3-5, obtains diluent; Described diluent is added in described suspension liquid and stirs, send in ball mill and carry out ball milling modification 3-5h, obtain modified solution, described modified solution is dried, sieves, obtain described modified expanded type fire retardant IFR.
6. the halogen-free flameproof TPE material according to any one of claim 1-5, is characterized in that, described polyolefin elastomer is terpolymer EP rubber or ethylene-octene copolymer.
7. the halogen-free flameproof TPE material according to any one of claim 1-6, is characterized in that, described oxidation inhibitor is Hinered phenols antioxidant and sulphur ester antioxidant or the composite gained composite antioxidant of phosphite ester kind antioxidant; Preferably, described Hinered phenols antioxidant is selected from 1,3,5-trimethylammonium-2,4,6-tri-(3,5-di-tert-butyl-4-hydroxybenzyl) benzene, 1,1,3-tri-(2-methyl-4-hydroxyl-5-t-butyl-phenyl) butane, four [3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, one or more in β-(3,5-di-tert-butyl-4-hydroxy phenyl) propionic acid octadecyl ester; Described sulphur ester antioxidant be selected from Tyox B, thio-2 acid two (14 ester) one or more; Described phosphite ester kind antioxidant be selected from three (2,4-DTBP) phosphorous acid ester, two (3,5-di-tert-butyl-phenyl) pentaerythritol diphosphites one or more.
8. the halogen-free flameproof TPE material according to any one of claim 1-7, is characterized in that, described softening agent is one or more in naphthenic base white oil, aromatic base white oil, paraffinic base white oil;
Preferably, described photostabilizer is one or more in hindered amine light stabilizer, triazines as light stabilizer, organic nickel complex compound;
Preferably, described processing aid is one or more in silicone powder, silicone master batch, silicone oil, vinyl bis-stearamides, stearate series lubricant agent.
9. the preparation method of the halogen-free flameproof TPE material according to any one of claim 1-8, it is characterized in that, comprise: SEBS, polyphenylene oxide, PE, PP, polyolefin elastomer, fire retardant, softening agent, oxidation inhibitor, photostabilizer and processing aid are added in kneader and mediates, obtain Preblend; Described Preblend sent in twin screw extruder and plasticate, pelletizing, obtains described halogen-free flameproof TPE material.
10. the preparation method of halogen-free flameproof TPE material according to claim 9, is characterized in that, the kneading temperature of carrying out mediating in kneader is 100-130 DEG C, and kneading time is 10-15min; Preferably, the processing temperature of carrying out plasticating in twin screw extruder is 200-250 DEG C, screw speed 300-350r/min.
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| CN106589756A (en) * | 2016-12-06 | 2017-04-26 | 佛山市高明区生产力促进中心 | Novel TPE (thermoplastic elastomer) material |
| CN107556688A (en) * | 2017-10-24 | 2018-01-09 | 惠州市元塑高分子材料有限公司 | A kind of Halogen, scratch resistance, wear-resisting, flame-proof wire insulating materials |
| CN109265810A (en) * | 2018-08-27 | 2019-01-25 | 芜湖市元奎新材料科技有限公司 | A kind of LLDPE and TPE composite cable material and preparation method thereof |
| CN110885529A (en) * | 2019-12-17 | 2020-03-17 | 广州敬信高聚物科技有限公司 | High-temperature-resistant TPE (thermoplastic elastomer) for wires and cables and preparation method thereof |
| CN110938275A (en) * | 2019-12-17 | 2020-03-31 | 东莞市瑞能塑胶科技有限公司 | High-weather-resistance high-flame-retardant thermoplastic elastomer material and preparation method thereof |
| CN114276602B (en) * | 2021-12-29 | 2023-10-10 | 苏州希普拉斯新材料有限公司 | Halogen-free high-flame-retardance polyolefin material and preparation method thereof |
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