CN102181108B - Crosslinked high flame-retardant foamed polyvinyl chloride modified material - Google Patents
Crosslinked high flame-retardant foamed polyvinyl chloride modified material Download PDFInfo
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- CN102181108B CN102181108B CN 201110085385 CN201110085385A CN102181108B CN 102181108 B CN102181108 B CN 102181108B CN 201110085385 CN201110085385 CN 201110085385 CN 201110085385 A CN201110085385 A CN 201110085385A CN 102181108 B CN102181108 B CN 102181108B
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Abstract
The invention discloses a crosslinked high flame-retardant foamed polyvinyl chloride modified material. The material comprises the following components in part by weight: 100 parts of polyvinyl chloride resin, 30 to 100 parts of nano talcpowder, 50 to 80 parts of high-temperature resistant polyester plasticizer, 20 to 100 parts of chlorinated polyvinyl chloride resin, 20 to 100 parts of polyethylene, 30 to 100 parts of halogen-free flame retardant, 5 to 20 parts of calcium zinc thermal stabilizer, 20 to 60 parts of cross linker and 10 to 40 parts of foaming agent. The material has excellent high-temperature resistance, high flame-retardant performance and excellent high-voltage electric resistance, and is particularly suitable to be used as a cable material with high flame-retardant requirement and used for a product shell.
Description
Technical field
The present invention relates to crosslinked high flame-retardant foamed polyvinyl chloride modifying material, especially be applied to foam high flame retardant and the electric wire and cable jacket material of high pressure resistant requirement is arranged and the product such as foaming high flame retardant product casing on polyvinyl chloride modifying material.
Background technology
Polyvinyl chloride cable material is common a kind of CABLE MATERIALS, and different environments for use has different requirements to polyvinyl chloride cable material.Polyvinyl chloride (Polyvinylchlorid, PVC), major ingredient are polyvinyl chloride, and PVC can be divided into soft pvc and hard PVC.Wherein hard PVC accounts for greatly 2/3 of market, and soft pvc accounts for 1/3.In addition, polyvinyl chloride also can be produced the plastics boardy products such as sheet material, door and window, pipeline and valve mainly for the production of plastics soft goods such as leatheroid, film, trunkings.The embrittlement temperature of present soft pvc CABLE MATERIALS only is-25 ℃, can't satisfy the requirement of development far away.In addition, according to standard GB/T/T88152002, the insulation-grade soft PVC plastic for electric wire and cable has again different varieties and model for 70 ℃ and 90 ℃, and the product application scope of each kind and model is narrow.
The variety of problems that exists for overcoming polyvinyl chloride cable material, the researchist has done a lot of improvement work, be the invention of CN200810023863 such as application number, a kind of polyvinyl chloride cable material that can (50～-70 ℃) use under extremely cold state is provided, and its raw material by following weight part is prepared from: 80～100 parts of polyvinyl chloride, 20～40 parts of dioctyl phthalate (DOP)s, 60～80 parts of dioctyl sebacates, 4～8 parts of oxalic acid dioctyl esters, 20～40 parts of light active calcium carbonates, 1～3 part of lubricant, 4～8 parts of CA-ZN one package stabilizers, antioxidant 1010 is 1～4 part, 20～50 parts of 0.5～5 part of cold-resistant agent K175C and paracrils; Application number is the invention of CN200510095375.1, a kind of improvement polyvinyl chloride cable material is provided, it is comprised of the mixture of base-material 40-70wt% polyvinyl chloride (PVC) RESINS and 30-60wt% ethylene vinyl acetate copolymer or 70-95wt% vinylchlorid and 5-30wt% maleate copolymer, 20-35wt% (in base-material) dioctyl sebacate and/or Octyl adipate softening agent and 0.3-1.6wt% (in base-material) UV light absorber, 0.5-2.0wt% (in base-material) mould inhibitor, and the use temperature scope is at-50 ℃-+80 ℃.But the CABLE MATERIALS one of these two inventions is not the technical scheme that provides for the requirement of standard GB/T/T8815-2002 specially, is the suitable product that provides for some special occasions such as antiultraviolet, the environment such as extremely cold, and in addition, its cost is all relatively more expensive.
In addition, the normally a pair of conflicting requirement in the identical product of the high pressure resistant index of some of cable and electric high-voltage product and fire-retardant index, that is to say to guarantee its high pressure resistant requirement during use such as a high pressure resistant flame retardant cable to possess again high flame retardant simultaneously and require just to be difficult to reach.Therefore, be necessary to be studied and improve.
Summary of the invention
Technical problem to be solved by this invention is the polyvinyl chloride modifying material that the present situation for prior art provides a kind of high temperature resistant, high pressure resistant and high flame retardant, to be used for the industries such as household electrical appliance high pressure producer, high-voltage ignition for automobile system, transformer, environmental protection equipment, as electric wire, high flame retardant product casing plastics etc.
The present invention solves the problems of the technologies described above the technical scheme that adopts: this crosslinked high flame-retardant foamed polyvinyl chloride modifying material, it is characterized in that its weight consists of: 100 parts of polyvinyl chloride (PVC) RESINS, 30-100 part nanomete talc powder, the resistant to elevated temperatures polyester plasticizer of 50-80 part, 20-100 part chlorinated polyvinyl chloride resin, 20-100 part polyethylene, 30-100 part halogen-free flame retardants, 5-20 part calcium zinc heat stabilizer, 20-60 part linking agent and 10-40 part whipping agent.
Described resistant to elevated temperatures polyester plasticizer is trimellitate kind polyester softening agent, and it has heat-resisting and characteristics resistivity against fire.Described trimellitate kind polyester softening agent is preferably inclined to one side three sour three monooctyl esters, trimellitic acid 810 esters, tri trimellitate ester in the last of the ten Heavenly stems or trimellitic acid Witepsol W-S 55, wherein the trimellitic acid Witepsol W-S 55 is very good with its low temperature resistant flexural property again, has excellent processing characteristics, also have low volatility arranged, flame retardant resistance, high temperature resistant and anti-extractable etc., and be preferred.
Described halogen-free flame retardants can be to adopt single fire retardant to select high flame retardant and fire retardant with environmental protection flame retardant smoke elimination function as principle, also can adopt composite flame-retardant agent.The present invention preferably adopts and is selected from flame retardant of magnesium hydroxide and pentaerythrite diphosphate melamine salt the two is compound or at least a as fire retardant in proportion.
Described linking agent is trimethylolpropane trimethacrylate (TMPTMA), Viscoat 295 (TMPTA), cyanacrylate (TAIC).
Described whipping agent is azo two amine carbonates.Azo two amine carbonates claim again azo two ammonium formates, or are called for short AZO or AZ.When pure state, it is a kind of yellow/orange powder, begins to decompose about 390 °F greatly, and gas production rate is 220cc/g during decomposition, and institute's aerogenesis body is mainly nitrogen and CO, and with a small amount of CO
2, also contain under certain conditions ammonia.
Described calcium zinc heat stabilizer selects the existing calcium zinc heat stabilizer that is applicable to the polyvinyl chloride system commonly used to get final product.Its principal constituent is calcium stearate and Zinic stearas.The compound calcium zinc heat stabilizer of R-3681 such as the production of Jiangxi rising sun peaking worker Industrial Co., Ltd..
Compared with prior art, crosslinked high flame-retardant foamed polyvinyl chloride modifying material provided by the invention, by preferred ingredient and interpolation whipping agent, the molecular chain of material is changed to net distribution by the wire distribution, thereby high temperature resistant grade and the electric property of material have been improved, make the temperature resistant grade of material of the present invention can reach-40 ℃～125 ℃, greatly improved resistance to elevated temperatures, also be suitable for using under the low temperature simultaneously.And its dielectric strength can reach 〉=20MV/m, and power frequency withstand test 3500V can reach 15min and not puncture, and has good high pressure resistant electric property.And the flame-proof polyvinyl chloride material can soften until decompose when running into flame moment usually; and material of the present invention is owing to having added whipping agent; it will crust by automatic foaming to certain temperature when running into flame; product is protected automatically; make flame in the flame-retardant standard time range, can not burn; thereby reach the requirement of high flame retardant, so just greatly improved the flame retardant properties of product, flame retardant properties can reach oxygen index more than 36.The data such as physics and electric property also can both reach and part surpasses the national standard requirement.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail.
One, the preparation technology of crosslinked high flame-retardant foamed polyvinyl chloride modifying material is as follows in the embodiment of the invention:
Prepare raw material by ratio of components, first with polyvinyl chloride resin powder, polyester plasticizer, halogen-free flame retardants, linking agent, calcium zinc heat stabilizer adding stirrer and high-speed stirring are about 10 minutes, to 80 ℃ of material temperatures, add again the chlorinated polyvinyl chloride resin high-speed stirring about 2 minutes to 100 ℃ of material temperatures, adding at last talcum powder, polythene PE and whipping agent high-speed stirring about 8 minutes, is that blowing carries out plastic granulating to 150 type twin screw extruders to 100 ℃ of material temperatures.The extruder screw temperature causes a mould from feed opening and is respectively: 150 ℃/160 ℃/165 ℃/170 ℃/165 ℃/160 ℃.
Two, the composition of the embodiment of the invention, weight composition and performance see Table 1:
The composition of table 1. embodiment, weight form and performance (the composition consumption is weight part in the table)
The R-3681 calcium zinc heat stabilizer is that Jiangxi rising sun peaking worker Industrial Co., Ltd. produces in the table 1.
In addition, through experiment, the trimellitic acid Witepsol W-S 55 substitutes with inclined to one side three sour three monooctyl esters, trimellitic acid 810 esters or tri trimellitate ester in the last of the ten Heavenly stems etc. in the table 1, cyanacrylate (TAIC) substitutes with trimethylolpropane trimethacrylate (TMPTMA) or Viscoat 295 (TMPTA), the performance of the material that obtains only is slightly poorer than embodiment in the table 1, but all obviously is better than existing same type of material.
Claims (4)
1. crosslinked high flame-retardant foamed polyvinyl chloride modifying material is characterized in that its weight consists of:
100 parts of polyvinyl chloride (PVC) RESINS, 30-100 part nanomete talc powder, 50-80 part softening agent, 20-100 part chlorinated polyvinyl chloride resin, 20-100 part polyethylene, 30-100 part halogen-free flame retardants, 5-20 part calcium zinc heat stabilizer, 20-60 part linking agent and 10-40 part whipping agent; Described softening agent is tri trimellitate ester in the last of the ten Heavenly stems or trimellitic acid Witepsol W-S 55.
2. polyvinyl chloride modifying material according to claim 1 is characterized in that described halogen-free flame retardants is at least a in the two for being selected from flame retardant of magnesium hydroxide and pentaerythrite diphosphate melamine salt.
3. polyvinyl chloride modifying material according to claim 1 is characterized in that described linking agent is trimethylolpropane trimethacrylate, Viscoat 295 or cyanacrylate.
4. polyvinyl chloride modifying material according to claim 1 is characterized in that described whipping agent is azo two amine carbonates.
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| CN 201110085385 CN102181108B (en) | 2011-03-30 | 2011-03-30 | Crosslinked high flame-retardant foamed polyvinyl chloride modified material |
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| CN 201110085385 CN102181108B (en) | 2011-03-30 | 2011-03-30 | Crosslinked high flame-retardant foamed polyvinyl chloride modified material |
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| CN102181108B true CN102181108B (en) | 2013-05-01 |
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| CN103059481B (en) * | 2011-10-20 | 2014-09-10 | 常熟市筑紫机械有限公司 | Polyvinyl chloride wire and cable material cross-linked at temperature of 105 DEG C |
| CN103059447A (en) * | 2011-10-20 | 2013-04-24 | 常熟市筑紫机械有限公司 | Environment-friendly flame retardant polyvinyl chloride wire and cable material |
| CN103509273B (en) * | 2012-06-29 | 2016-09-14 | 威海维赛新材料科技有限公司 | A kind of modified hard crosslinked polyvinyl chloride foam and preparation method thereof |
| EP2898515A4 (en) * | 2012-09-19 | 2016-06-01 | Gen Cable Technologies Corp | Strippable semiconducting shield compositions |
| CN103077783B (en) * | 2013-01-28 | 2016-02-17 | 常州市新东方电缆有限公司 | The production technology of bullet train cable |
| CN104031326B (en) * | 2013-03-07 | 2016-08-10 | 苑初明 | A kind of modified hard cross-linked polrvinyl chloride flame-retardant foam and preparation method thereof |
| CN104177724B (en) * | 2013-05-21 | 2016-08-10 | 保定维赛复合材料科技有限公司 | A kind of denatured conductive type hard crosslinked polyvinyl chloride foam and preparation method thereof |
| CN104558909A (en) * | 2013-10-22 | 2015-04-29 | 宁夏金黄河塑业有限责任公司 | Flat-type cable PVC sheath |
| CN104558917A (en) * | 2013-10-22 | 2015-04-29 | 宁夏金黄河塑业有限责任公司 | Semi-rigid flame-retardant PVC cable sheath for high voltage cable |
| CN103613880A (en) * | 2013-10-28 | 2014-03-05 | 安徽精一机械设备有限公司 | Flame-retardant foam material |
| CN103951905A (en) * | 2014-04-15 | 2014-07-30 | 安徽海容电缆有限公司 | Method for preparing weather-resistant cable sheath material |
| CN103951863B (en) * | 2014-04-23 | 2016-05-18 | 苏州羽帆新材料科技有限公司 | A kind of anti-aging stretch-proof plastic cement and preparation method thereof |
| CN104558961A (en) * | 2014-12-26 | 2015-04-29 | 神盾防火科技有限公司 | Flame-retardant grade-A polyvinyl chloride imitation solid wood section |
| CN104945780B (en) * | 2015-07-16 | 2017-08-22 | 常州市武进凯利达电子有限公司 | A kind of automobile low temperature resistant flame retardant polyvinyl chloride cable material and preparation method thereof |
| CN105542364B (en) * | 2016-01-06 | 2019-04-09 | 湖南省益力盛电子科技有限公司 | A kind of environment-protection nano-high molecule material and its preparation method and application |
| CN105837976A (en) * | 2016-04-22 | 2016-08-10 | 刘志宏 | PVC cross-linking melt-resistant material |
| CN106751228A (en) * | 2017-02-05 | 2017-05-31 | 山东中塑泰富科技有限公司 | A kind of PVC heat shrink films |
| CN110194972A (en) * | 2018-12-29 | 2019-09-03 | 中润油新能源股份有限公司 | A kind of novel synthesizing environment-friendly energy-saving methanol gasoline and preparation method thereof |
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