WO2022110671A1 - 高热丝引燃聚苯醚组合物及其制备方法与应用 - Google Patents

高热丝引燃聚苯醚组合物及其制备方法与应用 Download PDF

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WO2022110671A1
WO2022110671A1 PCT/CN2021/092833 CN2021092833W WO2022110671A1 WO 2022110671 A1 WO2022110671 A1 WO 2022110671A1 CN 2021092833 W CN2021092833 W CN 2021092833W WO 2022110671 A1 WO2022110671 A1 WO 2022110671A1
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phosphate
polyphenylene ether
parts
styrene
ether composition
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French (fr)
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何志帅
黄险波
叶南飚
禹权
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Kingfa Science and Technology Co Ltd
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Kingfa Science and Technology Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
    • C08L71/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
    • C08L71/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
    • C08L71/12—Polyphenylene oxides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2262—Oxides; Hydroxides of metals of manganese
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Definitions

  • the invention relates to the technical field of engineering plastics, in particular to a high-heat wire ignition polyphenylene ether composition and a preparation method and application thereof.
  • the hot wire ignition evaluates the difficulty of the material being ignited by the heating wire in the case of electrical short circuit, etc. If the material is easier to be ignited by the hot wire, when the electrical appliance is short circuited, it will be quickly ignited and cause a fire. Based on safety considerations, Underwriters Laboratories (UL) even mandates that plastic materials used for insulating live parts (or live parts with an insulation thickness of less than 0.71mm) must submit Hot Wire Ignition (HWI) test results.
  • UL Underwriters Laboratories
  • HWI Hot Wire Ignition
  • Polyphenylene ether material (PPE for short) has been widely used in the electrical field due to its excellent insulating properties, flame retardant properties and heat resistance properties. But despite the excellent insulating properties and flame retardant properties of PPE, it is difficult for the HWI rating of PPE to reach the 0 level specified by UL.
  • the flame retardant PPE materials with grade 0 HWI on the market are mainly reinforced and filled materials; the flame retardant PPE materials generally introduce PS to adjust the fluidity, the thermal stability is reduced, and the HWI performance is greatly reduced, and rarely can reach grade 0. HWI, related patents have not been reported.
  • the purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a high heat filament ignition polyphenylene ether composition.
  • the quality of the carbon layer is greatly enhanced, the HWI performance of the material is significantly improved, and the flame retardant has a good effect, and can be prepared.
  • a high-heat wire ignition polyphenylene ether composition comprising the following components by weight: 40-90 parts of polyphenylene ether, 2-40 parts of styrene resin, 1-10 parts of toughening agent, 5-18 parts of flame retardant, 0.1-3 parts of polyoxymethylene resin and 0.1-1 part of metal oxide.
  • the high-heat filament ignition polyphenylene ether composition includes the following components by weight: 60-80 parts of polyphenylene ether, 5-20 parts of styrene resin, 1-10 parts of toughening agent, flame retardant 8-16 parts of agent, 0.5-2.5 parts of polyoxymethylene resin and 0.1-1 part of metal oxide.
  • the metal oxides are oxides of metals in the third and fourth periods of the periodic table; more preferably, the metal oxides are at least one of zinc oxide and manganese oxide.
  • the metal oxide is a compound of zinc oxide and manganese oxide.
  • the intrinsic viscosity of the polyphenylene ether measured by an Ubbelohde viscometer in chloroform at 25°C is 0.2-0.8 dl/g; more preferably, the polyphenylene ether is measured by an Ubbelohde viscometer in chloroform at 25°C.
  • the polyphenylene ether can use a single polyphenylene ether resin with intrinsic viscosity, or a compound of several polyphenylene ether resins with different intrinsic viscosity can be selected.
  • the above-mentioned preferred polyphenylene ether resin in the present application has more excellent fluidity and comprehensive properties.
  • the polystyrene-based resin is a polymer of styrene-based monomer, a copolymer of styrene-based monomer and other comonomers, a styrene-based graft copolymer, and a styrene-based copolymer elastomer. At least one of; more preferably, the polystyrene resin is high impact polystyrene.
  • the polystyrene resin can reduce the viscosity of the PPE resin, further improve the infiltration of the filler of the material during the injection molding process, and improve the apparent quality.
  • the toughening agent is ethylene propylene rubber, nitrile rubber, butadiene rubber, ethylene vinyl acetate copolymer, polyolefin elastomer, styrene-butadiene-styrene block copolymer, styrene-ethylene At least one of /butylene-styrene block copolymer and styrene-ethylene/propylene-styrene block copolymer; more preferably, the toughening agent is styrene-ethylene/butylene-styrene block copolymer.
  • the flame retardant is at least one of a phosphate compound and a phosphate;
  • the phosphate compound is trimethyl phosphate, triethyl phosphate, tripropyl phosphate, tributyl phosphate, tripentyl phosphate Ester, Trihexyl Phosphate, Tricyclohexyl Phosphate, Triphenyl Phosphate, Tricresyl Phosphate, Trixylyl Phosphate, Cresyl Diphenyl Phosphate, Xylenyl Phosphate, Dimethyl Ethyl Phosphate At least one of ester, methyl dibutyl phosphate, ethyl dipropyl phosphate, hydroxyphenyl diphenyl phosphate, tetraphenyl (bisphenol-A) diphosphate, and tetraphenyl resorcinol diphosphate
  • the phosphate is at least one of
  • the polyoxymethylene is at least one of homopolyoxymethylene and copolyoxymethylene.
  • the high-heat filament ignition polyphenylene ether composition further comprises 0-5 parts of functional additives, the functional additives are antioxidants, heat stabilizers, colorants, mold release agents, ultraviolet absorbers, At least one of the anti-drip agents.
  • the functional additives are antioxidants, heat stabilizers, colorants, mold release agents, ultraviolet absorbers, At least one of the anti-drip agents.
  • the present invention also provides a method for preparing the high-heat filament-ignited polyphenylene ether composition.
  • a screw extruder is used to extrude and granulate to obtain a high heat filament ignition polyphenylene ether composition.
  • the present invention also provides the application of the high-heat filament ignition polyphenylene ether composition in the field of electrical appliances.
  • the quality of the carbon layer is greatly enhanced through the catalytic char formation of metal oxides and POM in the early stage of ignition, the HWI performance of the material is significantly improved, and the flame retardant has better performance. Good effect, the flame retardant PPE material with 0-level HWI can be prepared by this method.
  • the preparation method of the heat-resistant wire ignition polyphenylene ether composition of the present invention comprises the following steps: firstly dispersing the components in a high-speed mixer according to the formula ratio, and then extruding and granulating through a twin-screw; wherein, the extrusion process is: rotating speed 300rpm, feeding 450kg/h; extrusion temperature is about 265°C.
  • Flame retardant performance tested according to UL94 standard, the fire retardant grades are V-2, V-1, V-0, 5VA;
  • HWI According to the ASTM D3874-2012 standard, the heating wire is wound around a 3.0mm thickness sample, and a current of 60A/1.5V is applied to generate a linear power density of 0.25W/mm, and the current is maintained until the sample is ignited. Record the time from the start of current application to the ignition of the sample, and determine the ignition level of the hot wire according to the length of the ignition time. The data record is graded according to the grading standard provided by UL94, and the specific ignition time is recorded. For example, 1(65) means that the HWI level is 1 and the ignition time is 65S, as shown in Table 1:
  • Polyphenylene ether resin 1 PPE LXR045, the intrinsic viscosity measured by Ubbelohde viscometer in chloroform at 25°C is 0.44-0.46dl/g, Bluestar;
  • Polyphenylene ether resin 2 PPE LXR035, the intrinsic viscosity measured by Ubbelohde viscometer in chloroform at 25°C is 0.35-0.36dl/g, Bluestar;
  • Polyphenylene ether resin 3 SA9000, the intrinsic viscosity measured by Ubbelohde viscometer in chloroform at 25°C is 0.09-0.12dl/g, Sabic;
  • Styrene resin 1 high impact polystyrene, PS 350K, commercially available;
  • Styrene resin 2 styrene-acrylonitrile copolymer, D-178HF, commercially available;
  • Toughening agent 1 styrene-ethylene/butylene-styrene block copolymer, SEBS 6154, commercially available;
  • Toughening agent 2 ethylene-acrylate terpolymer, PTW, commercially available;
  • Polyacetal copolymer resin the trade name is POM M90-44, Poly;
  • Zinc oxide commercially available
  • Magnesium oxide commercially available
  • Antioxidants Antioxidant 1010 and Antioxidant 168, commercially available.
  • the application sets Examples 1 to 14 and Comparative Examples 1 to 3.
  • the components, contents and performance data of Examples 1 to 8 are shown in Table 2; the components and contents of Examples 9 to 14 and Comparative Examples 1 to 3 are shown in Table 2. and performance data are shown in Table 3;
  • Examples 1, 2, and 3 it can be seen that in Examples 1, 2, and 3, except for the intrinsic viscosity of the polyphenylene ether resin, the others are the same; wherein, the characteristics of the polyphenylene ether resin in Examples 1, 2 The viscosity is in the range of 0.2-0.8dl/g, the polyphenylene ether resin in Example 3 is not in the above range, the flame retardant performance and HWI in Examples 1 and 2 are better than those in The intrinsic viscosity of phenylene ether resin is in the range of 0.4-0.6dl/g, and its various properties are better;
  • Example 4 is the same as Example 1 except for the choice of polystyrene resin, and the polystyrene resin in Example 1 is high-impact polystyrene, Its HWI is better than embodiment 4;
  • Example 5 is the same as Example 1 except for the selection of the toughening agent, and the toughening agent in Example 1 is styrene-ethylene/butylene-styrene Block copolymer, its flame retardant performance and HWI are better than Example 5;
  • Example 1 Comparing Example 1 with Examples 6-8, it can be seen that Examples 6-7 only contain one of zinc oxide and manganese oxide, and Example 1 contains both zinc oxide and manganese oxide; The performance and HWI are better than those of Examples 6 to 7; the metal oxide in Example 8 is magnesium oxide, and the HWI of Examples 1 and 6 to 7 is better than that of Example 8.
  • Comparative Example 9 Comparing Example 9 with Comparative Examples 1, 2, and 3, it can be seen that Comparative Example 1 does not contain metal oxides and polyoxymethylene; The flame retardancy and HWI of ⁇ 3 are all worse than those of Example 9;
  • Examples 9 to 12 Comparing Examples 9 to 12 with Examples 13 and 14, it can be seen that in Examples 9 to 12, the requirements of "60-80 parts of polyphenylene ether, 5-20 parts of styrene resin, 1-10 parts of toughening agent, and flame retardant are satisfied. 8-16 parts of agent, 0.5-2.5 parts of polyoxymethylene resin and 0.1-1 part of metal oxide", the flame retardant performance and HWI in Examples 9-12 are better than those in Examples 13 and 14.

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  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

一种高热丝引燃聚苯醚组合物，包括如下重量份的成分：聚苯醚40-90份、苯乙烯类树脂2-40份、增韧剂1-10份、阻燃剂5-18份、聚甲醛树脂0.1-3份和金属氧化物0.1-1份。所述耐热丝引燃聚苯醚材料中，通过金属氧化物和POM在引燃前期的催化成炭作用，大幅度增强碳层质量，使材料的HWI性能提升明显，并对阻燃具有较好的效果，通过此方法可以制备出具有0级HWI的阻燃PPE材料。

Description

[根据细则37.2由ISA制定的发明名称]　高热丝引燃聚苯醚组合物及其制备方法与应用 技术领域
本发明涉及工程塑料技术领域，尤其涉及一种高热丝引燃聚苯醚组合物及其制备方法与应用。
背景技术
热丝引燃评价了材料在电器短路等情况下被电热丝引燃的难易程度，若材料较易被热丝引燃，在电器发生短路时，会被迅速引燃引发火灾。基于安全性的考虑，美国保险商试验所(UL)甚至强制要求用于绝缘带电部件(或绝缘厚度小于0.71mm的带电部件)的塑料材料必须提交热丝点火(HWI)测试结果。
聚苯醚材料(简称PPE)由于具有优异的绝缘性能、阻燃性能和耐热性能，在电器领域得到了广泛使用。但是尽管PPE具有优异的绝缘性能和阻燃性能，PPE的HWI等级很难达到UL规定的0级。当前市面上的具有0级HWI的PPE材料阻燃以增强和填充材料为主；阻燃PPE材料由于一般引入了PS调节流动性，热稳定降低，HWI性能大幅度降低，很少能够达到0级HWI，相关的专利也未有相关报告。
发明内容
基于此，本发明的目的在于克服上述现有技术的不足之处而提供一种高热丝引燃聚苯醚组合物。所述组合物中，通过金属氧化物和POM在引燃前期的催化成炭作用，大幅度增强碳层质量，使材料的HWI性能提升明显，并对阻燃具有较好的效果，可以制备出具有0级HWI的阻燃PPE材料。
为实现上述目的，本发明所采取的技术方案为：一种高热丝引燃聚苯醚组合物，包括如下重量份的成分：聚苯醚40-90份、苯乙烯类树脂2-40份、增韧剂1-10份、阻燃剂5-18份、聚甲醛树脂0.1-3份和金属氧化物0.1-1份。
优选地，所述的高热丝引燃聚苯醚组合物，包括如下重量份的成分：聚苯醚60-80份、苯乙烯类树脂5-20份、增韧剂1-10份、阻燃剂8-16份、聚甲醛 树脂0.5-2.5份和金属氧化物0.1-1份。
优选地，所述金属氧化物为元素周期表在第三周期和第四周期的金属的氧化物；更优选地，所述金属氧化物为氧化锌、氧化锰中的至少一种。
更优选地，所述金属氧化物为氧化锌和氧化锰的复配。
优选地，所述聚苯醚在25℃氯仿中采用乌氏粘度计测定的特性粘度为0.2-0.8dl/g；更优选地，所述聚苯醚在25℃氯仿中采用乌氏粘度计测定的特性粘度为0.4-0.6dl/g。
所述聚苯醚可以使用一种单独特性粘度的聚苯醚树脂，也可以选用几种不同特性粘度聚苯醚树脂的复合物。本申请上述优选的聚苯醚树脂具有更加优异的流动性与综合性能。
优选地，所述聚苯乙烯类树脂为苯乙烯类单体的聚合物、苯乙烯类单体与其他共聚单体的共聚物、苯乙烯类接枝共聚物、苯乙烯类共聚物弹性体中的至少一种；更优选地，所述聚苯乙烯类树脂为高抗冲聚苯乙烯。
聚苯乙烯类树脂可以降低PPE树脂的粘度，进一步提高注塑过程中材料的填料的浸润，提高表观质量。
优选地，所述增韧剂为乙丙橡胶、丁腈橡胶、顺丁橡胶、乙烯醋酸乙烯共聚物、聚烯烃弹性体、苯乙烯-丁二烯-苯乙烯嵌段共聚物、苯乙烯-乙烯/丁烯-苯乙烯嵌段共聚物、苯乙烯-乙烯/丙烯-苯乙烯嵌段共聚物中的至少一种；更优选地，所述增韧剂为苯乙烯-乙烯/丁烯-苯乙烯嵌段共聚物。
优选地，所述阻燃剂为磷酸酯化合物、磷酸盐中的至少一种；所述磷酸酯化合物为磷酸三甲酯、磷酸三乙酯、磷酸三丙酯、磷酸三丁酯、磷酸三戊酯、磷酸三己酯、磷酸三环己酯、磷酸三苯酯、磷酸三甲酚酯、磷酸三二甲苯酯、磷酸甲酚基二苯酯、磷酸二甲酚基苯酯、磷酸二甲基乙酯、磷酸甲基二丁酯、磷酸乙基二丙酯、磷酸羟苯基二苯酯、四苯基(双酚-A)二磷酸酯、四苯基间苯二酚二磷酸酯中的至少一种；所述磷酸盐为磷酸氢二铵、磷酸二氢铵、三聚氰胺、焦磷酸三聚氰胺、正磷酸三聚氰胺、磷酸酰胺、聚磷酸三聚氰胺、聚磷酸铵、 聚磷酸酰胺中的至少一种。
优选地，所述聚甲醛为均聚聚甲醛、共聚聚甲醛中的至少一种。
优选地，所述的高热丝引燃聚苯醚组合物，还包含0-5份的功能添加剂，所述功能添加剂为抗氧剂、热稳定剂、着色剂、脱模剂、紫外线吸收剂、抗滴落剂中的至少一种。
同时，本发明还提供一种所述的高热丝引燃聚苯醚组合物的制备方法，所述方法为：将各成分经过高速混合机混合分散后，得到混合料，然后将混合料通过双螺杆挤出机进行挤出造粒，得到高热丝引燃聚苯醚组合物。
此外，本发明还提供了所述的高热丝引燃聚苯醚组合物在电器领域中的应用。
相对于现有技术，本发明的有益效果为：
本发明耐热丝引燃聚苯醚材料中，通过金属氧化物和POM在引燃前期的催化成炭作用，大幅度增强碳层质量，使材料的HWI性能提升明显，并对阻燃具有较好的效果，通过此方法可以制备出具有0级HWI的阻燃PPE材料。
具体实施方式
为更好的说明本发明的目的、技术方案和优点，下面将结合具体实施例对本发明作进一步说明。以下实施例只是本发明的典型例，本发明的保护范围并不局限于此。本发明耐热丝引燃聚苯醚组合物的制备方法，其步骤是：先将各成分按照配方比例经过高速混合机分散后，通过双螺杆挤出造粒；其中，挤出工艺为：转速300rpm，喂料450kg/h；挤出温度为265℃左右。
以下实施例和对比例中，各性能测试标准及方法如下：
阻燃性能：按照UL94标准进行测试，防火阻燃等级依次为V-2、V-1、V-0、5VA；
HWI：按照ASTM D3874-2012标准，将加热丝缠绕在3.0mm厚度试样上，通以60A/1.5V的电流，产生0.25W/mm线性功率密度，保持电流直至试样被引 燃。记录开始通电流到试样被引燃的时间，根据引燃时间的长短来判定热丝引燃等级。数据记录按照UL94的提供分级标准进行分级，并记录具体引燃时间，如1(65)表示HWI等级为1级，引燃时间为65S，具体如表1：
表1
平均引燃时间(s) PLC
IT≥120 0
60≤IT＜120 1
30≤IT＜60 2
15≤IT＜30 3
7≤IT＜15 4
0≤IT＜7 5
实施例和对比例中用到的材料如下：
聚苯醚树脂
聚苯醚树脂1：PPE LXR045，在25℃氯仿中采用乌氏粘度计测定的特性粘度为0.44-0.46dl/g，蓝星；
聚苯醚树脂2：PPE LXR035，在25℃氯仿中采用乌氏粘度计测定的特性粘度为0.35-0.36dl/g，蓝星；
聚苯醚树脂3：SA9000，在25℃氯仿中采用乌氏粘度计测定的特性粘度为0.09-0.12dl/g，沙比克；
苯乙烯类树脂：
苯乙烯类树脂1：高抗冲聚苯乙烯，PS 350K，市售；
苯乙烯类树脂2：苯乙烯-丙烯腈共聚物，D-178HF，市售；
增韧剂：
增韧剂1：苯乙烯-乙烯/丁烯-苯乙烯嵌段共聚物，SEBS 6154，市售；
增韧剂2：乙烯-丙烯酸酯的三元共聚物，PTW，市售；
阻燃剂：四苯基(双酚-A)二磷酸酯(BDP)，市售；
共聚聚甲醛树脂：商品名为POM M90-44，宝理；
金属氧化物：
氧化锌：市售；
氧化锰：市售；
氧化镁：市售；
抗氧剂：抗氧剂1010和抗氧剂168，市售。
本申请设置实施例1～14及对比例1～3，实施例1～8中各成分、含量及性能数据如表2所示；实施例9～14及对比例1～3的各成分、含量及性能数据如表3所示；
表2 实施例1～8中的成分、含量及性能数据
Figure PCTCN2021092833-appb-000001
表3 实施例9～14及对比例1～3的成分、含量及性能数据
Figure PCTCN2021092833-appb-000002
Figure PCTCN2021092833-appb-000003
将实施例1、2、3进行对比可知，实施例1、2、3中除聚苯醚树脂的特性粘度不同外，其他均相同；其中，实施例1、2中的聚苯醚树脂的特性粘度在0.2-0.8dl/g范围内，实施例3中的聚苯醚树脂不在上述范围内，实施例1、2中的阻燃性能、HWI均优于实施例3，其中实施例1的聚苯醚树脂的特性粘度在0.4-0.6dl/g范围内，其各项性能更好；
将实施例1与实施例4对比可知，实施例4除聚苯乙烯类树脂的选择不同外，其他均与实施例1相同，实施例1中聚苯乙烯类树脂为高抗冲聚苯乙烯，其HWI均优于实施例4；
将实施例1与实施例5对比可知，实施例5除增韧剂的选择不同外，其他均与实施例1相同，实施例1中的增韧剂为苯乙烯-乙烯/丁烯-苯乙烯嵌段共聚物，其阻燃性能、HWI均优于实施例5；
将实施例1与实施例6～8对比可知，实施例6～7中只含有氧化锌、氧化锰中的一种，实施例1中同时含有氧化锌、氧化锰；实施例1中的阻燃性能、HWI均优于实施例6～7；实施例8中的金属氧化物为氧化镁，实施例1、6～7中的HWI均优于实施例8。
将实施例9与对比例1、2、3对比可知，对比例1中不含有金属氧化物和聚甲醛，对比例2中只含有金属氧化物，对比例3中只含有聚甲醛，对比例1～3的阻燃性能、HWI均差于实施例9；
将实施例9～12与实施例13、14对比可知，实施例9～12中满足“聚苯醚60-80份、苯乙烯类树脂5-20份、增韧剂1-10份、阻燃剂8-16份、聚甲醛树脂0.5-2.5份和金属氧化物0.1-1份”，实施例9～12中的阻燃性能、HWI优于实施例13、14。
最后所应当说明的是，以上实施例仅用以说明本发明的技术方案而非对本 发明保护范围的限制，尽管参照较佳实施例对本发明作了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的实质和范围。

Claims (12)

  1. 一种高热丝引燃聚苯醚组合物，其特征在于，包括如下重量份的成分：聚苯醚40-90份、苯乙烯类树脂2-40份、增韧剂1-10份、阻燃剂5-18份、聚甲醛树脂0.1-3份和金属氧化物0.1-1份。
  2. 如权利要求1所述的高热丝引燃聚苯醚组合物，其特征在于，包括如下重量份的成分：聚苯醚60-80份、苯乙烯类树脂5-20份、增韧剂1-10份、阻燃剂8-16份、聚甲醛树脂0.5-2.5份和金属氧化物0.1-1份。
  3. 如权利要求1所述的高热丝引燃聚苯醚组合物，其特征在于，所述金属氧化物为元素周期表在第三周期和第四周期的金属的氧化物；优选地，所述金属氧化物为氧化锌、氧化锰中的至少一种。
  4. 如权利要求3所述的高热丝引燃聚苯醚组合物，其特征在于，所述金属氧化物为氧化锌和氧化锰的复配。
  5. 如权利要求1所述的高热丝引燃聚苯醚组合物，其特征在于，所述聚苯醚在25℃氯仿中采用乌氏粘度计测定的特性粘度为0.2-0.8dl/g；优选地，所述聚苯醚在25℃氯仿中采用乌氏粘度计测定的特性粘度为0.4-0.6dl/g。
  6. 如权利要求1所述的高热丝引燃聚苯醚组合物，其特征在于，所述聚苯乙烯类树脂为苯乙烯类单体的聚合物、苯乙烯类单体与其他共聚单体的共聚物、苯乙烯类接枝共聚物、苯乙烯类共聚物弹性体中的至少一种；优选地，所述聚苯乙烯类树脂为高抗冲聚苯乙烯。
  7. 如权利要求1所述的高热丝引燃聚苯醚组合物，其特征在于，所述增韧剂为乙丙橡胶、丁腈橡胶、顺丁橡胶、乙烯醋酸乙烯共聚物、聚烯烃弹性体、苯乙烯-丁二烯-苯乙烯嵌段共聚物、苯乙烯-乙烯/丁烯-苯乙烯嵌段共聚物、苯乙烯-乙烯/丙烯-苯乙烯嵌段共聚物中的至少一种；优选地，所述增韧剂为苯乙烯-乙烯/丁烯-苯乙烯嵌段共聚物。
  8. 如权利要求1所述的高热丝引燃聚苯醚组合物，其特征在于，所述阻燃剂为磷酸酯化合物、磷酸盐中的至少一种；所述磷酸酯化合物为磷酸三甲酯、 磷酸三乙酯、磷酸三丙酯、磷酸三丁酯、磷酸三戊酯、磷酸三己酯、磷酸三环己酯、磷酸三苯酯、磷酸三甲酚酯、磷酸三二甲苯酯、磷酸甲酚基二苯酯、磷酸二甲酚基苯酯、磷酸二甲基乙酯、磷酸甲基二丁酯、磷酸乙基二丙酯、磷酸羟苯基二苯酯、四苯基(双酚-A)二磷酸酯、四苯基间苯二酚二磷酸酯中的至少一种；所述磷酸盐为磷酸氢二铵、磷酸二氢铵、三聚氰胺、焦磷酸三聚氰胺、正磷酸三聚氰胺、磷酸酰胺、聚磷酸三聚氰胺、聚磷酸铵、聚磷酸酰胺中的至少一种。
  9. 如权利要求1所述的高热丝引燃聚苯醚组合物，其特征在于，所述聚甲醛为均聚聚甲醛、共聚聚甲醛中的至少一种。
  10. 如权利要求1所述的高热丝引燃聚苯醚组合物，其特征在于，还包含0-5份的功能添加剂，所述功能添加剂为抗氧剂、热稳定剂、着色剂、脱模剂、紫外线吸收剂、抗滴落剂中的至少一种。
  11. 如权利要求1～10任一项所述的高热丝引燃聚苯醚组合物的制备方法，其特征在于，所述方法为：将各成分经过高速混合机混合分散后，得到混合料，然后将混合料通过双螺杆挤出机进行挤出造粒，得到所述高热丝引燃聚苯醚组合物。
  12. 如权利要求1～10任一项所述的高热丝引燃聚苯醚组合物在电器领域中的应用。
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