CN103059404A - Radiation cross-linking low-smoke halogen-free flame-retardant polyolefin insulating material and preparation method thereof - Google Patents
Radiation cross-linking low-smoke halogen-free flame-retardant polyolefin insulating material and preparation method thereof Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92923—Calibration, after-treatment or cooling zone
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Abstract
The invention provides a radiation cross-linking low-smoke halogen-free flame-retardant polyolefin insulating material and a preparation method thereof. The radiation cross-linking low-smoke halogen-free flame-retardant polyolefin insulating material mainly comprises the following components in parts by weight: 20-40 parts of ethylene-vinyl acetate rubber, 20-40 parts of ethylene propylene rubber, 20-40 parts of polyolefin elastomer resin, 10-20 parts of compatilizer, 200-250 parts of hydroxide fire retardant, 5-10 parts of char forming agent, 0.5-1.0 part of antioxidant A, 0.3-0.5 parts of antioxidant B, 1.5-2.0 part of cross-linking agent and 5-10 parts of lubricating agent. The preparation method comprises the following steps of: preparing and metering the materials in parts by weight; uniformly mixing the materials by a kneading machine; feeding the uniformly mixed materials to a double-screw extruder for mixing, and then feeding the mixed materials to a single-screw extruder for extruding and pelletizing; sieving the extruded and pelletized materials by a vibrating sieve, and cooling and packaging the sieved materials to obtain the radiation cross-linking low-smoke halogen-free flame-retardant polyolefin insulating material. The radiation cross-linking low-smoke halogen-free flame-retardant polyolefin insulating material can reach the flame-retardant and environmentally-friendly specification standards; and the preparation method is scientific and safe in design, and the use effect is ideal.
Description
Technical field
The present invention relates to wire cable material and preparation method thereof, relate in particular to a kind of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulating Material and Preparation Method of using for solar photovoltaic cable.
Background technology
Development along with the solar energy power generating industry, the laying of requirement institute should be fire-retardant with electric wire, meet German TUV1169 and UL4703 requirement, again environmental protection, meet the ROHS of European Union and REACH environmental regulation, used insulating material is heat-resisting 125 ℃ irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin insulation.
Because it is harsh that solar photovoltaic cable requires with the irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material, the one, 150 ℃, 7 days weathering tests are passed through in requirement.The 2nd, requirement has resistance to low temperature, is that the low temperature requirement reaches-40 ℃.The 3rd, requirement material volume resistivity is not less than 10*10
12The 4th, combustion test need to be by the VW-1 testing vertical flammability of UL1581 standard.Therefore, need to constantly improve
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 irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulating Material and Preparation Method, the employing ethylene copolymer is basic raw material, improve insulating property by adding ethylene-propylene rubber(EPR), adding the polyolefin elastomer resin improves flexible, add the oxyhydroxide fire retardant and make it to possess flame retardant properties, add char-forming agent and improve the burning dropping performance, enable to reach fire-retardant and codes and standards environmental protection, improve the materials processing performance by adding lubricant in addition; Preparation method's design science safety, result of use is desirable.
The objective of the invention is to be realized by following technical scheme.
Irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material of the present invention, it is characterized in that its main component and parts by weight are: ethene-vinyl acetate rubber is 20 to 40 parts, 20 to 40 parts in ethylene-propylene rubber(EPR), the polyolefin elastomer resin is 20 to 40 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, oxidation inhibitor A is 0.5 to 1.0 part, oxidation inhibitor B is 0.3 to 0.5 part, and linking agent is 1.5 to 2.0 parts, and lubricant is 5 to 10 parts.
Aforesaid irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material, wherein, described ethene-vinyl acetate rubber is that vinyl acetate between to for plastic (VA) weight content is 40 to 60% ethylene-vinyl acetate copolymer; Described ethylene-propylene rubber(EPR) is that weight ethylene content is 70%, mooney viscosity is 25 terpolymer EP rubber; Described polyolefin elastomer resin is ethylene-octene copolymer; Described compatilizer is that melting index 1 to 4g/10min, percentage of grafting are 1.0 to 2.0% maleic anhydride grafted ethene-octene copolymer resin; Described oxyhydroxide fire retardant is median size less than 2 microns flame retardant of magnesium hydroxide; Described char-forming agent is nano imvite; 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 linking agent is triallyl isocyanurate; Described lubricant is the high molecular silicone resin, and this high molecular silicone resin is the high molecular weight linear polydimethylsiloxane.
The preparation method of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material of the present invention, it is characterized in that, raw material is prepared metering according to parts by weight separately, after kneader mixes, it is mixing to send into twin screw extruder, then enters single screw extrusion machine and extrudes pelletizing, sieves through vibratory screening apparatus again, last cooling packing is finished preparation.
The preparation method of aforesaid irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material, wherein, the mixing temperature of described kneader is 120 to 140 ℃, kneader is 75 liters of kneaders.
The preparation method of aforesaid irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material, wherein, the diameter of described twin screw extruder is 75mm, melting temperature is 110 to 140 ℃.
The preparation method of aforesaid irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material, wherein, the diameter of described single screw extrusion machine is 150mm, and extruding the pelletizing temperature is 110 to 150 ℃, and extruding pelletizing speed is 200 to 300 rev/mins.
The preparation method of aforesaid irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material, wherein, below the described cooling temperature to 50 ℃.
The beneficial effect of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulating Material and Preparation Method of the present invention,
It adopts ethylene copolymer is basic raw material, improve insulating property by adding ethylene-propylene rubber(EPR), adding the polyolefin elastomer resin improves flexible, add the oxyhydroxide fire retardant and make it to possess flame retardant properties, add char-forming agent and improve the burning dropping performance, enable to reach the fire-retardant requirement of German TUV1169 and UL4703, can meet again the requirement of the ROHS of European Union and REACH environmental regulation, improve the materials processing performance by adding lubricant in addition.Moreover irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material prescription of the present invention is reasonable, preparation method's design science safety, and result of use is desirable.
Embodiment
Irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material of the present invention, its main component and parts by weight are: ethene-vinyl acetate rubber is 20 to 40 parts, 20 to 40 parts in ethylene-propylene rubber(EPR), polyolefin elastomer resin are 20 to 40 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 oxidation inhibitor A is 0.5 to 1.0 part, and oxidation inhibitor B is 0.3 to 0.5 part, linking agent is 1.5 to 2.0 parts, and lubricant is 5 to 10 parts.
Irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material of the present invention, wherein, described ethene-vinyl acetate rubber is that vinyl acetate between to for plastic (VA) weight content is 40 to 60% ethylene-vinyl acetate copolymer; Described ethylene-propylene rubber(EPR) is that weight ethylene content is 70%, mooney viscosity is 25 terpolymer EP rubber; Described polyolefin elastomer resin is ethylene-octene copolymer; Described compatilizer is that melting index 1 to 4g/10min, percentage of grafting are 1.0 to 2.0% maleic anhydride grafted ethene-octene copolymer resin; Described oxyhydroxide fire retardant is median size less than 2 microns flame retardant of magnesium hydroxide; Described char-forming agent is nano imvite; 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 linking agent is triallyl isocyanurate; Described lubricant is the high molecular silicone resin, and this high molecular silicone resin is the high molecular weight linear polydimethylsiloxane.
The preparation method of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material of the present invention, it prepares metering with raw material according to parts by weight separately, after kneader mixes, it is mixing to send into twin screw extruder, then enter single screw extrusion machine and extrude pelletizing, sieve through vibratory screening apparatus, last cooling packing is finished preparation again.
The preparation method of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material of the present invention, wherein, the mixing temperature of this kneader is 120 to 140 ℃, kneader is 75 liters of kneaders.The diameter of this twin screw extruder is 75mm, and melting temperature is 110 to 140 ℃.The diameter of single screw extrusion machine is 150mm, and extruding the pelletizing temperature is 110 to 150 ℃, and extruding pelletizing speed is 200 to 300 rev/mins.Below the packing cooling temperature to 50 ℃.
Embodiment 1 and embodiment 2 prepare according to the parts by weight of each component in the table 1:
Table 1 is each composition weight umber of the embodiment of the invention
The preparation of embodiment 1:
The preparation of embodiment 1:
Will be according to after each composition weight umber prepares in the table 1, drop into 75 liters of kneaders and mix, mixing temperature is 120 ℃, and the twin screw extruder of sending into diameter and be 75mm is mixing, melting temperature is 110 ℃, the single screw extrusion machine that enters diameter again and be 150mm is extruded pelletizing, and extruding the pelletizing temperature is 110 ℃, and extruding pelletizing speed is 200 rev/mins, then sieve through vibratory screening apparatus, be cooled at last below 50 ℃, pack, obtain finished product.
The preparation of embodiment 2:
Will be according to after each composition weight umber prepares in the table 1, drop into 75 liters of kneaders and mix, mixing temperature is 140 ℃, and the twin screw extruder of sending into diameter and be 75mm is mixing, melting temperature is 140 ℃, the single screw extrusion machine that enters diameter again and be 150mm is extruded pelletizing, and extruding the pelletizing temperature is 150 ℃, and extruding pelletizing speed is 300 rev/mins, then sieve through vibratory screening apparatus, be cooled at last below 50 ℃, pack, obtain finished product.
Embodiment of the invention end properties is as shown in table 2:
Table 2 is irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material salient features of the present invention
Adopt the irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material production CABLE MATERIALS of embodiment of the invention preparation, with this CABLE MATERIALS compressing tablet, after the 10Mrad radiation treatment, performance is as shown in table 3:
Table 3 is for adopting irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material production CABLE MATERIALS compressing tablet of the present invention, the performance after the 10Mrad radiation treatment
As can be seen from Table 3, adopt irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material production CABLE MATERIALS of the present invention to meet related standard requirements fully.
The advantage of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulating Material and Preparation Method of the present invention:
1, adds ethylene-propylene rubber(EPR) and improve insulating property, because general polymer material volume resistivity is 10
10～10
12Ohm-meter, the volume specific resistance of ethylene-propylene rubber(EPR) are 10
14～10
16Ohm-meter, volume specific resistance more high insulating property are better.
2, adding the polyolefin elastomer resin improves flexible, if employing polythene material, its shore hardness hardness is more than the 45D, elongation at break is below 200%, and the present invention adopts the polyolefin elastomer resin, its shore hardness is reduced to below the 40D, and elongation at break is brought up to more than 300%, and material flexibility is improved.
3, add the oxyhydroxide fire retardant and make it to possess flame retardant properties, polyolefine material comprises ethene, propylene, butylene, octene divides homopolymer and multipolymer, homopolymer refers to the polymkeric substance that a kind of monomer polymerization forms, multipolymer refers to the polymkeric substance that two or more monomer polymerization at least forms, oxygen index only has 17 to 21, can make it oxygen index by the interpolation fire retardant brings up to more than 30, fire retardant has a minute halogen, the antimony class, phosphorus nitrogen system, the oxyhydroxide class, and the oxyhydroxide class is divided aluminium hydroxide and magnesium hydroxide, combustion decomposition becomes oxide compound and water, play fire retardation, and meet the European Union environmental protection requirement.
4, add char-forming agent and improve the burning dropping performance, because UL standard and IEC standard burn test are very harsh, combustion unit is transferred rayon balls, and the cotton if the combustion processes drippage will ignite causes test defective; Charing was crusted when char-forming agent can promote polymer combustion, thereby improved the burning dropping performance of material.
5, improve the materials processing performance by adding lubricant, CABLE MATERIALS is to be extruded in electric wire and cable conductor or multiply core outside with plastics extruder, adds lubricant and can improve the flow rate of material, thereby enhance productivity.
6, process design is rationally simple, and is easy and safe to operate.
The embodiment of the invention is that the content that describes 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 (7)
1. irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material, it is characterized in that its main component and parts by weight are: ethene-vinyl acetate rubber is 20 to 40 parts, 20 to 40 parts in ethylene-propylene rubber(EPR), the polyolefin elastomer resin is 20 to 40 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, oxidation inhibitor A is 0.5 to 1.0 part, oxidation inhibitor B is 0.3 to 0.5 part, and linking agent is 1.5 to 2.0 parts, and lubricant is 5 to 10 parts.
2. irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material according to claim 1 is characterized in that,
Described ethene-vinyl acetate rubber is that vinyl acetate between to for plastic (VA) weight content is 40 to 60% ethylene-vinyl acetate copolymer;
Described ethylene-propylene rubber(EPR) is that weight ethylene content is 70%, mooney viscosity is 25 terpolymer EP rubber;
Described polyolefin elastomer resin is ethylene-octene copolymer;
Described compatilizer is that melting index 1 to 4g/10min, percentage of grafting are 1.0 to 2.0% maleic anhydride grafted ethene-octene copolymer resin;
Described oxyhydroxide fire retardant is median size less than 2 microns flame retardant of magnesium hydroxide;
Described char-forming agent is nano imvite;
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 linking agent is triallyl isocyanurate;
Described lubricant is the high molecular silicone resin, and this high molecular silicone resin is the high molecular weight linear polydimethylsiloxane.
3. the preparation method of an irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material as claimed in claim 1, it is characterized in that, raw material is prepared metering according to parts by weight separately, after kneader mixes, it is mixing to send into twin screw extruder, then enters single screw extrusion machine and extrudes pelletizing, sieves through vibratory screening apparatus again, last cooling packing is finished preparation.
4. the preparation method of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material according to claim 3 is characterized in that, the mixing temperature of described kneader is 120 to 140 ℃, and kneader is 75 liters of kneaders.
5. the preparation method of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material according to claim 3 is characterized in that, the diameter of described twin screw extruder is 75mm, and melting temperature is 110 to 140 ℃.
6. the preparation method of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material according to claim 3, it is characterized in that, the diameter of described single screw extrusion machine is 150mm, and extruding the pelletizing temperature is 110 to 150 ℃, and extruding pelletizing speed is 200 to 300 rev/mins.
7. the preparation method of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin Insulation Material according to claim 3 is characterized in that, below the described cooling temperature to 50 ℃.
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| CN103435903A (en) * | 2013-09-13 | 2013-12-11 | 无锡杰科塑业有限公司 | Low-smoke zero-halogen flame-retardant polyolefin thermoplastic elastomer and preparation method thereof |
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| CN110041607A (en) * | 2019-04-30 | 2019-07-23 | 合肥工业大学 | A kind of metal hydroxides-boron nitride hydridization filler/blend rubber nuclear power cable Insulation Material and preparation method |
| CN110791011A (en) * | 2019-11-11 | 2020-02-14 | 南通林格橡塑制品有限公司 | 150 ℃ irradiation crosslinking low-smoke halogen-free flame-retardant elastomer cable material and preparation method thereof |
| CN111117056A (en) * | 2020-01-07 | 2020-05-08 | 盐城申源塑胶有限公司 | Thermoplastic halogen-free flame-retardant elastomer cable material with ultralow smoke generation amount and preparation method thereof |
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2013
- 2013-01-25 CN CN2013100296148A patent/CN103059404A/en active Pending
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