CN103059403A - Thermoplastic low-fume halogen-free high-flame retardance polyolefin insulation material and preparation method thereof - Google Patents
Thermoplastic low-fume halogen-free high-flame retardance polyolefin insulation material and preparation method thereof Download PDFInfo
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- CN103059403A CN103059403A CN2013100294547A CN201310029454A CN103059403A CN 103059403 A CN103059403 A CN 103059403A CN 2013100294547 A CN2013100294547 A CN 2013100294547A CN 201310029454 A CN201310029454 A CN 201310029454A CN 103059403 A CN103059403 A CN 103059403A
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Abstract
The invention provides a thermoplastic low-fume halogen-free high-flame retardance polyolefin insulation material and a preparation method thereof. The thermoplastic low-fume halogen-free high-flame retardance polyolefin insulation material comprises the following principal components in parts by weight: 30-40 parts of ethylene-vinyl acetate copolymer resin, 30-40 parts of polyolefine elastomer resin, 20-30 parts of polyethylene resin, 10-20 parts of compatilizers, 200-250 parts of hydrate fire retardants, 5-10 parts of charring agents, 1-2 parts of flame-retardant synergists, 0.5 parts of antioxidants A, 0.5 parts of antioxidant B and 5-10 parts of lubricants. The preparation method comprises the following steps of: preparing the materials contained in a raw material formula in parts by weight respectively, and then feeding the materials into a milling machine for uniform mixing; then feeding the mixture into an extruder to extrude cut granules; then screening through a vibrating screen; and finally cooling and packaging to obtain a finished product. The thermoplastic low-fume halogen-free high-flame retardance polyolefin insulation material provided by the invention has the advantages of better heat-resistant property and processing property and flame-retardant grade enhancement. The preparation method of the thermoplastic low-fume halogen-free high-flame retardance polyolefin insulation material, which is provided by the invention, is reasonable in design and easy and convenient to operate.
Description
Technical field
The present invention relates to CABLE MATERIALS and preparation method thereof, relate in particular to thermoplastic low-smoke halide-free high flame retardant polyolefin insulation material that a kind of building wire or inside cable use and preparation method thereof.
Background technology
Present building wire or the multiplex flame-proof PVC of inside cable or nylon sheathed wire, the flame retarding PVC composition for cable flame retardant resistance is fine, but discharge poison gas and dense smoke during burning, be unfavorable for escape and rescue, along with the appearance of the ROHS of European Union and REACH environmental regulation and the needs of China's public safety, Ministry of Public Security's formulation standard explicitly calls for the use low-smoke halide-free fireproof composite polyolefine material.
Existing building wire and the optical cable following shortcoming of low smoke halogen-free flame-retardant polyolefin Insulation Material ubiquity: 1, poor fire, general low smoke and zero halogen material can not be by the bunched burning test of IEC332 standard C class, the disaster hidden-trouble that exists current overload to cause.2, insulating material is bad in thermotolerance, and thermal distortion is large, and deflection surpasses 50% mostly.3, wear resisting property is bad, and easy scratch insulation causes the electrical breakdown short circuit during poling construction, causes fire.Therefore have much room for improvement.
Summary of the invention
Main purpose of the present invention is to overcome the above-mentioned shortcoming that currently available products exists, and provide a kind of thermoplastic low-smoke halide-free high flame retardant polyolefin insulation material and preparation method thereof, it adopts ethylene-vinyl acetate copolymer is basic raw material, improve resistance toheat by adding high melting point polyethylene, add high meltflow ability polyolefin elastomer and improve processing characteristics and elongation at break, add char-forming agent and promote into charcoal, prevent drippage, the fire retarding synergist that particularly adds can significantly improve flame retardant rating, add the polymeric silicone resin and improve the electric wire surface smoothness, be beneficial to the poling construction, so that building wire and the optical cable made with thermoplastic low-smoke halide-free high flame retardant polyolefin insulation material can pass through all kinds of bunched burning tests, and having good resistance toheat and workability, its preparation method is reasonable in design, and is easy and simple to handle.
The objective of the invention is to be realized by following technical scheme.
Thermoplastic low-smoke halide-free high flame retardant polyolefin insulation material of the present invention, it is characterized in that its major ingredient and parts by weight are: ethylene-vinyl acetate copolymer resin is 30 to 40 parts, and the polyolefin elastomer resin is 30 to 40 parts, polyvinyl resin is 20 to 30 parts, compatilizer is 10 to 20 parts, and the oxyhydroxide fire retardant is 200 to 250 parts, and char-forming agent is 5 to 10 parts, retardant synergist is 1 to 2 part, oxidation inhibitor A is 0.5 part, and oxidation inhibitor B is 0.5 part, and lubricant is 5 to 10 parts.
Aforesaid thermoplastic low-smoke halide-free high flame retardant polyolefin insulation material, wherein, described ethylene-vinyl acetate copolymer resin is that vinyl acetate between to for plastic (VA) weight content is 26% to 30% ethylene-vinyl acetate copolymer resin; Described polyolefin elastomer resin is the multipolymer of ethene and propylene, butylene or octene; Described polyvinyl resin is that melting index is 2 to 4g/10min, density is 0.91 to 0.92g/cm3 polyvinyl resin; Described compatilizer is that melting index is 1 to 4g/10min, percentage of grafting is 1.0 to 2.0% maleic anhydride grafted polyethylene resin; Described oxyhydroxide fire retardant is mean particle size less than 2.0 microns, maximum particle diameter ultrafine aluminium hydroxide fire retardant or the flame retardant of magnesium hydroxide less than 6 microns; Described char-forming agent is nano imvite; Described retardant synergist is modification organic silicon oil, and this modification organic silicon oil is the low molecular weight polycaprolactone siloxanes; Described oxidation inhibitor A is four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester; Described oxidation inhibitor B is Tyox B; Described lubricant is the high molecular weight linear polydimethylsiloxane.
The preparation method of thermoplastic low-smoke halide-free high flame retardant polyolefin insulation material of the present invention, it is characterized in that, material in the described composition of raw materials is prepared rear input milling machine according to parts by weight separately to be mixed, then send into forcing machine and extrude pelletizing, then sieve through vibratory screening apparatus, last cooling packing obtains finished product.
The preparation method of aforesaid thermoplastic low-smoke halide-free high flame retardant polyolefin insulation material, wherein, described milling machine is 55 liters of pressure initial refining machines, its mixing temperature is 120 to 140 ℃; Described forcing machine is that diameter is the single screw extrusion machine of 120mm, and the extrusion temperature of this single screw extrusion machine is 110 to 140 ℃, and extruded velocity is 200 to 300 rev/mins; The temperature of described cooling packing is below 50 ℃.
The beneficial effect of thermoplastic low-smoke halide-free high flame retardant polyolefin insulation material of the present invention and preparation method thereof, it adopts ethylene-vinyl acetate copolymer is basic raw material, improves resistance toheat by adding high melting point polyethylene; Because to have melt flow rate (MFR) larger for the polyolefin elastomer resin, be 15 to 20g/min, therefore the characteristics of molecular chain length add the polyolefin elastomer resin of high meltflow ability, can improve processing characteristics and elongation at break; Add char-forming agent and promote into charcoal, prevent drippage, the fire retarding synergist that particularly adds can significantly improve flame retardant rating, thereby has good resistance toheat, can pass through all kinds of bunched burning tests; Add the polymeric silicone resin and improve the electric wire surface smoothness, reduce skin friction force, material wear ability is improved, be beneficial to the poling construction, have good workability; Its preparation method is reasonable in design, and is easy and simple to handle.
Embodiment
Thermoplastic low-smoke halide-free high flame retardant polyolefin insulation material of the present invention, its major ingredient and parts by weight are: ethylene-vinyl acetate copolymer resin is 30 to 40 parts, the polyolefin elastomer resin is 30 to 40 parts, and polyvinyl resin is 20 to 30 parts, and compatilizer is 10 to 20 parts, the oxyhydroxide fire retardant is 200 to 250 parts, char-forming agent is 5 to 10 parts, and retardant synergist is 1 to 2 part, and oxidation inhibitor A is 0.5 part, oxidation inhibitor B is 0.5 part, and lubricant is 5 to 10 parts.
Thermoplastic low-smoke halide-free high flame retardant polyolefin insulation material of the present invention, wherein, described ethylene-vinyl acetate copolymer resin is that vinyl acetate between to for plastic (VA) weight content is 26% to 30% ethylene-vinyl acetate copolymer resin; Described polyolefin elastomer resin is the multipolymer of ethene and propylene, butylene or octene; Described polyvinyl resin is that melting index is 2 to 4g/10min, density is 0.91 to 0.92g/cm
3Polyvinyl resin; Described compatilizer is that melting index is 1 to 4g/10min, percentage of grafting is 1.0 to 2.0% maleic anhydride grafted polyethylene resin; Described oxyhydroxide fire retardant is mean particle size less than 2.0 microns, maximum particle diameter ultrafine aluminium hydroxide fire retardant or the flame retardant of magnesium hydroxide less than 6 microns; Described char-forming agent is nano imvite; Described retardant synergist is modification organic silicon oil, and this modification organic silicon oil is the low molecular weight polycaprolactone siloxanes; Described oxidation inhibitor A is four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester; Described oxidation inhibitor B is Tyox B; Described lubricant is the high molecular weight linear polydimethylsiloxane.
The preparation method of thermoplastic low-smoke halide-free high flame retardant polyolefin insulation material of the present invention, it is characterized in that, material in the described composition of raw materials is prepared rear input milling machine according to parts by weight separately to be mixed, then send into forcing machine and extrude pelletizing, then sieve through vibratory screening apparatus, last cooling packing obtains finished product.
The preparation method of thermoplastic low-smoke halide-free high flame retardant polyolefin insulation material of the present invention, wherein, described milling machine is 55 liters of pressure initial refining machines, its mixing temperature is 120 to 140 ℃; Described forcing machine is that diameter is the single screw extrusion machine of 120mm, and the extrusion temperature of this single screw extrusion machine is 110 to 140 ℃, and extruded velocity is 200 to 300 rev/mins; The temperature of described cooling packing is below 50 ℃.
Embodiment:
Embodiment 1 and embodiment 2 prepare according to each composition weight umber shown in the table 1:
Table 1 is each composition weight umber table of the embodiment of the invention
The preparation of embodiment 1:
Raw material is prepared 55 liters of pressure initial refining machines of rear input according to the separately parts by weight shown in the table 1 to be mixed, its mixing temperature is 120 ℃, then send into diameter and be the single screw extrusion machine of 120mm and extrude pelletizing, its extrusion temperature is 110 ℃, extruded velocity is 200 rev/mins, then sieves through vibratory screening apparatus, is cooled at last below 50 ℃, pack, obtain finished product.
The preparation of embodiment 2:
Raw material is prepared 55 liters of pressure initial refining machines of rear input according to the separately parts by weight shown in the table 1 to be mixed, its mixing temperature is 140 ℃, then send into diameter and be the single screw extrusion machine of 120mm and extrude pelletizing, its extrusion temperature is 150 ℃, extruded velocity is 300 rev/mins, then sieves through vibratory screening apparatus, cools off at last 50 ℃, pack, obtain finished product.
The thermoplastic low-smoke halide-free high flame retardant polyolefin insulation material salient features of embodiment of the invention preparation is as shown in table 2:
Table 2 is the thermoplastic low-smoke halide-free high flame retardant polyolefin insulation material salient features table of embodiment of the invention preparation
After adopting the prepared Insulation Material compressing tablet of the present invention, experimental result is as shown in table 3:
Table 3 is shown for experiment after adopting the prepared Insulation Material compressing tablet of the present invention
As can be seen from Table 3, the complete conformance with standard requirement of Insulation Material of embodiment of the invention preparation.
The content that the embodiment of the invention does not describe is prior art, so, no longer give unnecessary details.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment does.
Claims (4)
1. thermoplastic low-smoke halide-free high flame retardant polyolefin insulation material, it is characterized in that its major ingredient and parts by weight are: ethylene-vinyl acetate copolymer resin is 30 to 40 parts, and the polyolefin elastomer resin is 30 to 40 parts, polyvinyl resin is 20 to 30 parts, compatilizer is 10 to 20 parts, and the oxyhydroxide fire retardant is 200 to 250 parts, and char-forming agent is 5 to 10 parts, retardant synergist is 1 to 2 part, oxidation inhibitor A is 0.5 part, and oxidation inhibitor B is 0.5 part, and lubricant is 5 to 10 parts.
2. thermoplastic low-smoke halide-free high flame retardant polyolefin insulation material according to claim 1 is characterized in that, described ethylene-vinyl acetate copolymer resin is that vinyl acetate between to for plastic (VA) weight content is 26% to 30% ethylene-vinyl acetate copolymer resin;
Described polyolefin elastomer resin is the multipolymer of ethene and propylene, butylene or octene;
Described polyvinyl resin is that melting index is 2 to 4g/10min, density is 0.91 to 0.92g/cm
3Polyvinyl resin;
Described compatilizer is that melting index is 1 to 4g/10min, percentage of grafting is 1.0 to 2.0% maleic anhydride grafted polyethylene resin;
Described oxyhydroxide fire retardant is mean particle size less than 2.0 microns, maximum particle diameter ultrafine aluminium hydroxide fire retardant or the flame retardant of magnesium hydroxide less than 6 microns;
Described char-forming agent is nano imvite;
Described retardant synergist is modification organic silicon oil, and this modification organic silicon oil is the low molecular weight polycaprolactone siloxanes;
Described oxidation inhibitor A is four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester;
Described oxidation inhibitor B is Tyox B;
Described lubricant is the high molecular weight linear polydimethylsiloxane.
3. the preparation method of a thermoplastic low-smoke halide-free high flame retardant polyolefin insulation material as claimed in claim 1, it is characterized in that, material in the described composition of raw materials is prepared rear input milling machine according to parts by weight separately to be mixed, then send into forcing machine and extrude pelletizing, then sieve through vibratory screening apparatus, last cooling packing obtains finished product.
4. the preparation method of thermoplastic low-smoke halide-free high flame retardant polyolefin insulation material according to claim 3 is characterized in that, described milling machine is 55 liters of pressure initial refining machines, and its mixing temperature is 120 to 140 ℃; Described forcing machine is that diameter is the single screw extrusion machine of 120mm, and the extrusion temperature of this single screw extrusion machine is 110 to 140 ℃, and extruded velocity is 200 to 300 rev/mins; The temperature of described cooling packing is below 50 ℃.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104804441A (en) * | 2015-05-06 | 2015-07-29 | 湖北工程学院 | High-insulativity high-flame-resistance plastic material for electric insulating protective cover and preparation method of plastic material |
| CN105778248A (en) * | 2014-12-25 | 2016-07-20 | 上海凯波特种电缆料厂有限公司 | 150-DEG radiation-crosslinked flame-retardant polyolefin material for electric car high-voltage cable, and preparation method thereof |
| CN106336566A (en) * | 2016-08-31 | 2017-01-18 | 欧宝聚合物江苏有限公司 | High-flame-retardance inner liner low-smoke halogen-free cable material and preparation method thereof |
| CN107200917A (en) * | 2017-06-30 | 2017-09-26 | 江苏德威新材料股份有限公司 | A kind of new energy high-voltage line high resistant retardant composite material and preparation method thereof |
| CN109438928A (en) * | 2018-10-09 | 2019-03-08 | 江阴凯博通信科技有限公司 | Low smoke halogen-free sheath material and its production technology |
| CN109599213A (en) * | 2018-10-25 | 2019-04-09 | 江苏亨通电力电缆有限公司 | American Standard is without the insulation midium voltage cable of partial discharge second third |
| CN109749219A (en) * | 2019-01-09 | 2019-05-14 | 上海凯波特种电缆料厂有限公司 | A kind of halogen-free anti-flaming polyolefin insulating materials and preparation method thereof |
| CN110872416A (en) * | 2019-11-29 | 2020-03-10 | 无锡杰科塑业有限公司 | Thermoplastic micro-foaming low-smoke halogen-free flame-retardant cable material and preparation method thereof |
| CN112500671A (en) * | 2020-10-14 | 2021-03-16 | 南通东弘电线电缆有限公司 | Insulating layer material for electric wire and preparation method thereof |
| CN113372644A (en) * | 2021-05-14 | 2021-09-10 | 宝新高分子科技(广州)有限公司 | High-flame-retardant cross-linked low-smoke halogen-free polyolefin insulating material and preparation method thereof |
| CN115678153A (en) * | 2022-11-10 | 2023-02-03 | 苏州亨利通信材料有限公司 | Thermoplastic soft low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof |
| CN117534915A (en) * | 2024-01-09 | 2024-02-09 | 广东电缆厂有限公司 | Halogen-free low-smoke flame-retardant cable sheath, preparation method thereof and cable comprising sheath |
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| CN101012326A (en) * | 2007-02-08 | 2007-08-08 | 北京化工大学 | Halogen-free flame-proof cable sheath material |
| CN102617923A (en) * | 2012-03-28 | 2012-08-01 | 天津市普立泰高分子科技有限公司 | Irradiation cross-linking low-smoke zero-halogen high flame-retarding polyolefin insulation material and preparing method thereof |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105778248A (en) * | 2014-12-25 | 2016-07-20 | 上海凯波特种电缆料厂有限公司 | 150-DEG radiation-crosslinked flame-retardant polyolefin material for electric car high-voltage cable, and preparation method thereof |
| CN104804441A (en) * | 2015-05-06 | 2015-07-29 | 湖北工程学院 | High-insulativity high-flame-resistance plastic material for electric insulating protective cover and preparation method of plastic material |
| CN106336566A (en) * | 2016-08-31 | 2017-01-18 | 欧宝聚合物江苏有限公司 | High-flame-retardance inner liner low-smoke halogen-free cable material and preparation method thereof |
| CN107200917B (en) * | 2017-06-30 | 2020-03-24 | 江苏德威新材料股份有限公司 | High-flame-retardant composite material for new energy high-voltage wire and preparation method thereof |
| CN107200917A (en) * | 2017-06-30 | 2017-09-26 | 江苏德威新材料股份有限公司 | A kind of new energy high-voltage line high resistant retardant composite material and preparation method thereof |
| CN109438928A (en) * | 2018-10-09 | 2019-03-08 | 江阴凯博通信科技有限公司 | Low smoke halogen-free sheath material and its production technology |
| CN109599213A (en) * | 2018-10-25 | 2019-04-09 | 江苏亨通电力电缆有限公司 | American Standard is without the insulation midium voltage cable of partial discharge second third |
| CN109749219A (en) * | 2019-01-09 | 2019-05-14 | 上海凯波特种电缆料厂有限公司 | A kind of halogen-free anti-flaming polyolefin insulating materials and preparation method thereof |
| CN110872416A (en) * | 2019-11-29 | 2020-03-10 | 无锡杰科塑业有限公司 | Thermoplastic micro-foaming low-smoke halogen-free flame-retardant cable material and preparation method thereof |
| CN112500671A (en) * | 2020-10-14 | 2021-03-16 | 南通东弘电线电缆有限公司 | Insulating layer material for electric wire and preparation method thereof |
| CN113372644A (en) * | 2021-05-14 | 2021-09-10 | 宝新高分子科技(广州)有限公司 | High-flame-retardant cross-linked low-smoke halogen-free polyolefin insulating material and preparation method thereof |
| CN115678153A (en) * | 2022-11-10 | 2023-02-03 | 苏州亨利通信材料有限公司 | Thermoplastic soft low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof |
| CN117534915A (en) * | 2024-01-09 | 2024-02-09 | 广东电缆厂有限公司 | Halogen-free low-smoke flame-retardant cable sheath, preparation method thereof and cable comprising sheath |
| CN117534915B (en) * | 2024-01-09 | 2024-03-22 | 广东电缆厂有限公司 | Halogen-free low-smoke flame-retardant cable sheath, preparation method thereof and cable comprising sheath |
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