WO2022111024A1 - 一种阻燃abs组合物及其制备方法和应用 - Google Patents

一种阻燃abs组合物及其制备方法和应用 Download PDF

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WO2022111024A1
WO2022111024A1 PCT/CN2021/120547 CN2021120547W WO2022111024A1 WO 2022111024 A1 WO2022111024 A1 WO 2022111024A1 CN 2021120547 W CN2021120547 W CN 2021120547W WO 2022111024 A1 WO2022111024 A1 WO 2022111024A1
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flame
flame retardant
abs composition
nitrogen
retardant abs
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French (fr)
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秦旺平
黄险波
叶南飚
王亮
刘凯
付锦锋
杨霄云
陈平绪
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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
    • C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
    • C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
    • 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
    • C08K3/32—Phosphorus-containing compounds
    • C08K2003/321—Phosphates
    • C08K2003/322—Ammonium phosphate
    • C08K2003/323—Ammonium polyphosphate
    • 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
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation

Definitions

  • the present invention relates to the field of engineering plastics, and more particularly, to a flame-retardant ABS composition and a preparation method and application thereof.
  • ABS is a terpolymer, and its chemical structure contains polybutadiene rubber components, which is flammable. Compared with engineering materials, it is difficult to form charcoal during the combustion process, and it is technically difficult to achieve high-grade flame retardant performance. . At present, ABS materials are commonly used in the housing of household appliances. These products will cause fires due to overheating, leakage, and aging during use, posing a huge threat to people's lives. Flame retardant ABS can currently achieve V-0, V-1 and V-2 flame retardant grades, but only V-2 grade can achieve halogen-free flame retardant, and V-0 grade can only be achieved by brominated flame retardant systems.
  • halogenated flame retardant, brominated flame retardant ABS materials will generate large smoke and poisonous gas during the combustion process, which will cause great harm to human health.
  • the halogen-free flame retardant system is less harmful during the combustion process.
  • flame retardant materials in the future, and has always been a research hotspot.
  • it can meet the halogen-free V-0 flame retardant ABS materials, but there are some performance defects, such as poor mechanical properties, which limit the halogen-free flame retardant.
  • Application of ABS material is the halogen-free flame retardant, brominated flame retardant ABS materials will generate large smoke and poisonous gas during the combustion process, which will cause great harm to human health.
  • the halogen-free flame retardant system is less harmful during the combustion process.
  • it can meet the halogen-free V-0 flame retardant ABS materials, but there are some performance defects, such as poor mechanical properties, which limit the halogen-free flame retardant.
  • Application of ABS material is to say, halogenated flame retardant,
  • Halogen-free flame retardant also needs to add a large amount of phosphorus-containing flame retardant to achieve the flame retardant effect, but the addition of organic phosphorus will make the material plasticize, and the mechanical properties will be seriously lost, especially the impact performance will drop by more than 80%.
  • Chinese patent (CN102690491A) discloses a heat-resistant halogen-free flame-retardant ABS resin composition and a preparation method thereof.
  • the patent discloses that phosphorus-nitrogen-based flame retardants and organic hypophosphite are compounded to improve their flame retardancy, but The gloss is decreased, the impact strength is low, some can only reach 3KJ/m 2 and the patent can only partially reach the V-0 flame retardant grade.
  • the current existing ABS composition has the problem that it cannot guarantee the flame retardant grade of halogen-free V-1 or higher and the high mechanical properties at the same time.
  • the present invention provides a flame retardant ABS composition in order to overcome the defects of low gloss, low impact strength and inability to meet the flame retardant grade of halogen-free V-1 or higher in the existing ABS composition.
  • Another object of the present invention is to provide a preparation method of the flame retardant ABS composition.
  • Another object of the present invention is to provide the application of the flame retardant ABS composition.
  • the technical scheme adopted in the present invention is:
  • a flame retardant ABS composition comprising the following components calculated in parts by weight:
  • the invention adopts the compounding of cyclic phosphazene compound, organic phosphinate and nitrogen-based flame retardant, improves the flame retardant efficiency of the flame retardant system, reduces the addition amount of the flame retardant, and preserves the ABS to the greatest extent. Physical properties, mechanical properties and gloss can also be maintained while maintaining the V-1 flame retardancy of the composition.
  • the introduction of nitrogen-based flame retardants can reduce the total content of organic phosphorus and improve the mechanical properties.
  • the content of nitrogen-based flame retardants is small, and the gloss can be maintained at a high level.
  • the relative density of the ABS resin is 1.03-1.08%, and the polybutadiene content is 12-25%.
  • the weight ratio of the cyclic phosphazene compound, the organic phosphinate and the nitrogen-based flame retardant is (3-2):(1.5-1):(1-0.5).
  • the ratio of the nitrile compound, the organic phosphinate to the nitrogen-based flame retardant is within this range, the gloss is maintained at a high level.
  • the cyclic phosphazene compound is a compound of the following general formula:
  • R group is selected from -SiOH 2 , -NHR, -NH 2 , -NR 2 , -NCH, -NO 3 , -NCO, -N(CH 3 ), -CH 3 or -C 6 H 5 A sort of.
  • the R group of the cyclic phosphazene compound is selected from -C 6 H 5 .
  • the organic phosphinate is a compound of the following general formula:
  • R' is selected from -SiH3 , -SiCl3 , -SiHCl2 , -SiHO3 , -(( CH3 ) 5Si)2O, -NHR, -NH2 , -NR2 , -NCH , -NO3 One of , -C(CH 3 ) 3 , -NCO, -N(CH 3 ) or -C 2 H 5 .
  • R' of the organic phosphinate is selected from -C 2 H 5 .
  • the nitrogen-based flame retardant is a compound having the following general structural formula:
  • the degree of polymerization n satisfies: 2 ⁇ n ⁇ 1600, the phosphorus content in the nitrogen-based flame retardant is 30% to 32%, and the nitrogen content is 14% to 16%. Flame retardant properties.
  • Test method for nitrogen element use oxygen bomb combustion method for pretreatment, and then analyze by ion chromatography.
  • the oxygen bomb combustion method is to take a sample of about 5-10g, burn it completely in a closed system of high pressure oxygen, absorb the residual gas after the combustion of the sample through an alkaline solution, and use an ion chromatograph to measure the peak time and area of the elements in the absorption liquid. External standard method for quantification.
  • the test method for the content of phosphorus element is: take 0.4-0.6g of the sample particles to be tested and place them in a round-bottomed flask, add 10 mL of concentrated H 2 SO 4 and 5 mL of H 2 O 2 , and place them on an electric hot plate at 480°C for digestion until complete carbonization. , it takes 35min-45min; after the carbonization is completed, it is cooled for 5min, and then an appropriate amount of H 2 O 2 is added to determine whether it is completely carbonized. If it is not complete, continue to add H 2 O 2 until it is completely carbonized, and then cool it in a 100mL volumetric flask. The supernatant was collected by filtration, centrifuged, and then tested by inductively coupled plasma emission spectrometry (ICP).
  • ICP inductively coupled plasma emission spectrometry
  • the processing aid is at least one of an antioxidant, a lubricant or an anti-drip agent.
  • the antioxidant is selected from one or more of alkyl monophenols, alkyl polyphenols and thiobisphenols.
  • the lubricant is selected from stearamide type lubricants, such as EBS B50, EB-FF, EBS P400 or WK1890.
  • the anti-drip agent is selected from polytetrafluoroethylene compounds.
  • the present invention also provides a preparation method of the flame retardant ABS composition, comprising the following steps:
  • step S2 Send the premix prepared in step S1 into an extruder for extrusion, and then process it to obtain a flame-retardant ABS composition.
  • the post-processing is water cooling and granulation.
  • the invention provides a flame retardant ABS composition, which adopts the compounding of a cyclic phosphazene compound, an organic phosphinate and a nitrogen-based flame retardant. Able to maintain mechanical properties and gloss.
  • the introduction of nitrogen-based flame retardants can reduce the total content of organic phosphorus, improve the mechanical properties and heat resistance, the content of nitrogen-based flame retardants is small, and the gloss can be maintained at a high level.
  • reagents, methods and equipment used in the present invention are conventional reagents, methods and equipment in the technical field.
  • ABS resin styrene-acrylonitrile-butadiene copolymer, ABS 0215A, Jilin Petrochemical, relative density 1.04g/cm 3 , polybutadiene content 19%;
  • Cyclic phosphazene compound A the R group in the structure is -C 6 H 5 , HT-231, Shandong Taixing New Materials Co., Ltd.;
  • Cyclic phosphazene compound B the R group in the structure is -CH 3 , commercially available;
  • Cyclic phosphazene compound C the R group in the structure is -F, commercially available;
  • Cyclic phosphazene compound D the R group in the structure is -NH 2 , commercially available;
  • Organic phosphinate A R' in the structure is -C 2 H 5 group, M-116, Shanghai Lidao Company;
  • Organic phosphinate B R' group in the structure is -NH 2 , commercially available;
  • Organic phosphinate C: R' group in the structure is isobutyl, commercially available;
  • Organic phosphinate D Zinc diethyl phosphinate, YT-ZDP950, Anqing Yuetong Molybdenum Industry Co., Ltd.;
  • Nitrogen flame retardant A ammonium polyphosphate, phosphorus content of 32%, polymerization degree n of 1500, nitrogen content of 14% to 16%, Wujiang Mingkai Fine Chemical Co., Ltd.;
  • Nitrogen flame retardant B ammonium polyphosphate, phosphorus content 31%, degree of polymerization n is 1200, commercially available;
  • Processing aid alkyl monophenol antioxidant, Irganox 1010, BASF;
  • step S2 The premix prepared in step S1 is fed into the extruder, extruded, the extrusion temperature is 190-220 °C, the speed of the screw host is 400r/min, the feeding speed is 350r/min, and then cooled with water to make The pellets yielded a flame retardant ABS composition.
  • Example 16 Example 17
  • Example 18 Example 19 ABS resin 70 70 70 70 Cyclic Phosphazene Compound A 20 20 20 20 20 20 20 Organophosphinate A — — — 10 Organophosphinate B 10 — — Organophosphinate C — 10 — — Organophosphinate D — — 10 — Nitrogen flame retardant A 5 5 5 — Nitrogen flame retardant B — — — 5 Processing aids 0.5 0.5 0.5 0.5 0.5 0.5
  • Test items Executive standard Test Conditions unit Izod notched impact strength ISO 180/1A:2000 4mm, 23°C KJ/m 2 vertical combustion UL 94:2015 2.0mm / Gloss ISO-2813:2014 60°Ave. /

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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)
  • Fireproofing Substances (AREA)

Abstract

本发明公开了一种阻燃ABS组合物，包括如下重量份的组分：ABS树脂45～84.8份；环状磷腈化合物10～25份；有机次膦酸盐3～18份；氮系阻燃剂2～10份；加工助剂0.2～2份。本发明采用环状磷腈化合物、有机次膦酸盐与氮系阻燃剂复配，使得ABS组合物能够达到具有V-1阻燃等级以上的情况下，还能够保持力学性能和光泽度。该组合物可以用于制备家用电器外壳制品中的应用。

Description

一种阻燃ABS组合物及其制备方法和应用 技术领域
本发明涉及工程塑料领域，更具体地，涉及一种阻燃ABS组合物及其制备方法和应用。
背景技术
ABS属于三元共聚物，其化学结构中含有聚丁二烯橡胶组份，具有易燃性，相比工程材料，其在燃烧过程中难以成炭，实现高等级阻燃性能具有较大技术难度。目前ABS材料常用作家用电器的外壳，这些产品在使用过程中会因过热、漏电、和老化等原因引起火灾，对人们的生命造成巨大威胁。阻燃ABS目前都可以实现V-0，V-1和V-2阻燃等级，但是只有V-2等级可以实现无卤阻燃，V-0等级目前只有溴系阻燃体系才可以实现，也就是有卤阻燃，溴系阻燃ABS材料在燃烧过程中会产生较大的烟雾及毒气，对人体健康会造成很大伤害，无卤阻燃体系在燃烧过程中产生的危害性较小，是未来阻燃材料的发展趋势，也一直成为研究的热点，但是目前能够满足无卤V-0阻燃ABS材料，都存在一些性能上的缺陷，比如力学性能差，限制了无卤阻燃ABS材料的应用。
无卤阻燃目前也存在需要加入大量含磷阻燃剂才能达到阻燃效果，但是有机磷的加入会使材料塑化，力学性能损失严重，尤其是冲击性能下降超过80％。
中国专利(CN102690491A)公开了一种耐热无卤阻燃ABS类树脂组合物及其制备方法，该专利虽然公开了磷-氮系阻燃剂和有机次磷酸盐复配提高其阻燃，但是其光泽度下降，冲击强度低，有的只能达到3KJ/m 2且该专利只能部分达到V-0阻燃等级。
因此，目前现有的ABS组合物存在无法同时保证无卤V-1阻燃等级以上和力学性能高的问题。
发明内容
本发明为克服现有的ABS组合物光泽度低、冲击强度低、以及不能满足无卤V-1级以上阻燃等级的缺陷，提供一种阻燃ABS组合物。
本发明的另一目的在于提供所述阻燃ABS组合物的制备方法。
本发明的另一目的在于提供所述阻燃ABS组合物的应用。
为解决上述技术问题，本发明采用的技术方案是：
一种阻燃ABS组合物，包括如下按重量份计算的组分：
Figure PCTCN2021120547-appb-000001
本发明采用环状磷腈化合物、有机次膦酸盐与氮系阻燃剂的复配，提升了阻燃体系的阻燃效率，降低了阻燃剂的添加量，最大程度地保留了ABS的物理性能，保持所述组合物具有V-1阻燃的情况下，还能够保持力学性能和光泽度。其中引入氮系阻燃剂能够降低有机磷总含量，提高力学性能，氮系阻燃剂的含量少，其光泽度又能保持在较高水平。
所述ABS树脂的相对密度为1.03～1.08％，聚丁二烯含量为12～25％。
优选地，所述环状磷腈化合物、有机次膦酸盐与氮系阻燃剂的重量份比为(3～2):(1.5～1):(1～0.5)，当上述环状磷腈化合物、有机次膦酸盐与氮系阻燃剂的比值在这个范围内，光泽度保持较高水平。
优选地，所述环状磷腈化合物为以下结构通式的化合物：
Figure PCTCN2021120547-appb-000002
其中，R基团选自-SiOH 2、-NHR、-NH 2、-NR 2、-NCH、-NO 3、-NCO、-N(CH 3)、-CH 3或-C 6H 5中的一种。
更优选地，所述环状磷腈化合物的R基团选自-C 6H 5。
优选地，所述有机次膦酸盐为以下结构通式的化合物：
Figure PCTCN2021120547-appb-000003
其中R'选自-SiH 3、-SiCl 3、-SiHCl 2、-SiHO 3、-((CH 3) 5Si) 2O、-NHR、-NH 2、-NR 2、-NCH、-NO 3、-C(CH 3) 3、-NCO、-N(CH 3)或-C 2H 5中的一种。
更优选地，所述有机次膦酸盐的R'选自-C 2H 5。
优选地，所述氮系阻燃剂为具有以下结构通式的化合物：
Figure PCTCN2021120547-appb-000004
其中聚合度n满足：2≤n＜1600，所述氮系阻燃剂中的磷含量30％～32％，氮含量为14％～16％，磷氮元素有助于促进阻燃效率，提升阻燃性能。
氮元素的测试方法：采用氧弹燃烧法进行前处理，然后用离子色谱进行分析。氧弹燃烧法是取5-10g左右样品，在高压氧的密闭系统内完全燃烧，通过碱溶液来吸收样品燃烧后的残余气体，用离子色谱仪测量吸收液中元素出峰时间和面积，用外标法定量。
磷元素的含量的测试方法为：取0.4～0.6g待测样品粒子置于圆底烧瓶，加10mL浓H 2SO 4和5mL H 2O 2，置于480℃的电热板进行消解直至完全碳化，需要35min-45min；碳化结束后进行冷却5min，然后加适量H 2O 2，判断是否完全碳化，未完全则继续加H 2O 2直至完全碳化，然后在100mL容量瓶中进行冷却定容，过滤，离心取上清液，然后进行电感耦合等离子体发射光谱测试ICP。
优选地，所述加工助剂为抗氧剂、润滑剂或抗滴落剂中的至少一种。
所述抗氧剂选自烷基单酚类，烷基多酚类、硫代双酚类中的一种或几种。
所述润滑剂选自硬脂酰胺类润滑剂，例如EBS B50、EB-FF、EBS P400或 WK1890。
优选地，所述抗滴落剂选自聚四氟乙烯类化合物。
本发明还提供一种阻燃ABS组合物的制备方法，包括以下步骤：
S1.称量ABS树脂、环状磷腈化合物、有机次膦酸盐、氮系阻燃剂以及加工助剂后，将上述原料投入混料机中混合均匀，得到预混料；
S2.将步骤S1制备好的预混料送入挤出机中挤出，后加工得到阻燃ABS组合物。
所述后加工为过水冷却，造粒。
所述阻燃ABS组合物在制备家用电器、办公用品中的应用。
与现有技术相比，本发明的有益效果是：
本发明提供一种阻燃ABS组合物，采用环状磷腈化合物、有机次膦酸盐与氮系阻燃剂的复配，所述组合物具有V-1等级以上阻燃的情况下，还能够保持力学性能和光泽度。其中引入氮系阻燃剂能够降低有机磷总含量，提高力学性能和耐热性能，氮系阻燃剂的含量少，其光泽度又能保持在较高水平。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述，但本发明的实施方式不限于此。
本发明所采用的试剂、方法和设备，如无特殊说明，均为本技术领域常规试剂、方法和设备。
以下实施例及对比例中采用的原料如下：
ABS树脂：苯乙烯-丙烯腈-丁二烯共聚物，ABS 0215A，吉林石化，相对密度1.04g/cm 3，聚丁二烯含量19％；
环状磷腈化合物A：结构中R基团为-C 6H 5，HT-231，山东泰星新材料股份有限公司；
环状磷腈化合物B：结构中R基团为-CH 3，市售；
环状磷腈化合物C：结构中R基团为-F，市售；
环状磷腈化合物D：结构中R基团为-NH 2，市售；
有机次膦酸盐A：结构中R'为-C 2H 5基团，M-116,上海力道公司；
有机次膦酸盐B：结构中R'基团为-NH 2，市售；
有机次膦酸盐C：结构中R'基团为异丁基，市售；
有机次膦酸盐D：二乙基次膦酸锌，YT-ZDP950，安庆市月铜钼业有限公司；
氮系阻燃剂A：聚磷酸铵，磷含量32％，聚合度n为1500，氮含量为14％～16％，吴江市明凯精细化工有限公司；
氮系阻燃剂B：聚磷酸铵，磷含量31％，聚合度n为1200，市售；
加工助剂：烷基单酚类抗氧剂，Irganox 1010，巴斯夫公司；
硬质酰胺类润滑剂，EBS B50，常州可赛公司；
聚四氟乙烯类抗滴落剂，SN80-SA7，广州熵能公司。
下面结合实施例来详细说明本发明。
下面实施例1～19和对比例1～5均通过以下方法制备阻燃ABS组合物，按照表1-表4的重量比称取各组分；具体步骤如下：
S1.称量ABS树脂、环状磷腈化合物、有机次膦酸盐、氮系阻燃剂以及加工助剂后，将上述原料投入高速搅拌混料机中混合均匀，得到预混料；
S2.将步骤S1制备好的预混料送入挤出机中，挤出，挤出温度为190-220℃，螺杆主机转速400r/min，喂料转速350r/min，然后过水冷却，造粒得到阻燃ABS组合物。
表1实施例1～8的配方
Figure PCTCN2021120547-appb-000005
表2实施例9～15的配方
Figure PCTCN2021120547-appb-000006
Figure PCTCN2021120547-appb-000007
表3实施例16～19的配方
质量份数 实施例16 实施例17 实施例18 实施例19
ABS树脂 70 70 70 70
环状磷腈化合物A 20 20 20 20
有机次膦酸盐A — — — 10
有机次膦酸盐B 10 — — —
有机次膦酸盐C — 10 — —
有机次膦酸盐D — — 10 —
氮系阻燃剂A 5 5 5 —
氮系阻燃剂B — — — 5
加工助剂 0.5 0.5 0.5 0.5
表4对比例1～5的配方
质量份数 对比例1 对比例2 对比例3 对比例4 对比例5
ABS 70 70 70 70 70
环状磷腈化合物A 20 20 — — 30
有机次膦酸盐A 10 — — 10 10
氮系阻燃剂A — — 5 — 20
加工助剂 0.5 0.5 0.5 0.5 0.5
表5性能测试方法：
检测项目 执行标准 测试条件 单位
悬臂梁缺口冲击强度 ISO 180/1A:2000 4mm,23℃ KJ/m 2
垂直燃烧 UL 94：2015 2.0mm /
光泽度 ISO-2813：2014 60°Ave. /
表6各实施例和对比例的数据
  悬臂梁缺口冲击强度(KJ/m 2) 光泽度 阻燃等级
实施例1 21 78 V-0
实施例2 19 79 V-0
实施例3 17 85 V-0
实施例4 16 86 V-0
实施例5 19 78 V-0
实施例6 15 84 V-0
实施例7 14 78 V-0
实施例8 16 79 V-0
实施例9 18 79 V-0
实施例10 16 84 V-0
实施例11 14 82 V-0
实施例12 13 80 V-0
实施例13 17 83 V-1
实施例14 15 81 V-1
实施例15 16 82 V-1
实施例16 15 82 V-1
实施例17 14 81 V-1
实施例18 12 80 V-1
实施例19 15 82 V-1
对比例1 9 81 V-2达不到
对比例2 8 83 V-2达不到
对比例3 8 82 V-2达不到
对比例4 9 79 V-2达不到
对比例5 5 60 V-0
从实施例1～4看，随着环状磷腈化合物含量的增加，材料保持V-0阻燃等级，其缺口冲击强度有所下降，这是因为环状磷腈化合物，氮系阻燃剂与ABS树脂相容性稍差，对于性能具有一定负面影响，但是整体性能较好，具有产业化应用价值，正是因为环状磷腈化合物与有机次膦酸盐的存在，所以下降幅度不大；由于3～4的环状磷腈化合物、有机次膦酸盐和氮系阻燃剂具有较好的配比，其光泽 度较高。
从实施例2和5～7看，随着有机次膦酸盐含量的增加，依然保持V-0阻燃，有机次膦酸盐与ABS树脂相容性较差，其缺口冲击强度下降，但是因为实施例6环状磷腈化合物、有机次膦酸盐和氮系阻燃剂具有较好的配比，其光泽度较高。
从实施例9～12看，随着氮系阻燃剂含量的增加，依然保持V-0阻燃，实施例9的环状磷腈化合物、有机次膦酸盐与氮系阻燃剂的重量份比在(3～2):(1.5～1):(1～0.5)之外，其光泽度下降，均差于对比例10～12。
从实施例13～15看，当环状磷腈化合物的R基团选择为-CH 3和-NH 2时的力学性能要好于R基团为-F，且阻燃为V-1等级。
从实施例16～18看，当有机次膦酸盐的R'基团为-NH 2的力学性能要好于R'基团的异丁基，阻燃为V-1等级，选择二乙基次膦酸锌的有机次磷酸盐也能达到V-1阻燃，且有较好的力学性能；从实施例19看，选择三聚氰胺做氮系阻燃剂，也能达到V-1阻燃和较好的力学性能。
从对比例1～4看，不加入氮系阻燃剂、环状磷腈化合物或者有机次膦酸盐其中的至少一种，都不能相互配合提高阻燃等级。从对比例5看，当时用较大量的环状磷腈化合物与氮系阻燃剂时，虽然能达到V-0阻燃，但是其缺口冲击强度和光泽度都剧烈下降。
显然，本发明的上述实施例仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明权利要求的保护范围之内。

Claims (10)

  1. 一种阻燃ABS组合物，其特征在于，包括如下按重量份计算的组分：
    Figure PCTCN2021120547-appb-100001
  2. 如权利要求1所述阻燃ABS组合物，其特征在于，所述环状磷腈化合物为以下结构通式的化合物：
    Figure PCTCN2021120547-appb-100002
    其中，R基团选自-SiOH 2、-NHR、-NH 2、-NR 2、-NCH、-NO 3、-NCO、-N(CH 3)、-CH 3或-C 6H 5中的一种。
  3. 如权利要求2所述阻燃ABS组合物，其特征在于，所述环状磷腈化合物的R基团选用-C 6H 5。
  4. 如权利要求1所述阻燃ABS组合物，其特征在于，所述有机次膦酸盐为以下结构通式的化合物：
    Figure PCTCN2021120547-appb-100003
    其中R'选自-SiH 3、-SiCl 3、-SiHCl 2、-SiHO 3、-((CH 3) 5Si) 2O、-NHR、-NH 2、-NR 2、-NCH、-NO 3、-NCO、-C(CH 3) 3、-N(CH 3)或-C 2H 5中的一种。
  5. 如权利要求4所述阻燃ABS组合物，其特征在于，所述有机次膦酸盐的R'选自-C 2H 5。
  6. 如权利要求1所述阻燃ABS组合物，其特征在于，所述氮系阻燃剂为具有以下结构通式的化合物：
    Figure PCTCN2021120547-appb-100004
    其中聚合度n满足：2≤n＜1600，所述氮系阻燃剂中的磷含量30％～32％，氮含量为14％～16％。
  7. 如权利要求1所述阻燃ABS组合物，其特征在于，所述加工助剂为抗氧剂、润滑剂或抗滴落剂中的至少一种。
  8. 如权利要求7所述阻燃ABS组合物，其特征在于，所述抗滴落剂为聚四氟乙烯类化合物。
  9. 如权利要求1～8任一项所述阻燃ABS组合物的制备方法，其特征在于，包括以下步骤：
    S1.称量ABS树脂、环状磷腈化合物、有机次膦酸盐、氮系阻燃剂和加工助剂后，将上述原料投入混料机中混合均匀，得到预混料；
    S2.将步骤S1制备好的预混料送入挤出机中挤出，后加工得到阻燃ABS组合物。
  10. 权利要求1～8任一项所述阻燃ABS组合物在制备家用电器、办公用品中的应用。
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