CN102875893B - 一种热塑性阻燃塑料 - Google Patents
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Abstract
本发明提供了一种热塑性阻燃塑料，由按照重量份计的如下原料制成：聚丙烯80~100份、聚乙烯40~60份、萜烯树脂60~100份、聚苯乙烯20~40份、丁腈橡胶20~30份、癸二酸二丁酯10~20份、聚酰亚胺10~20份、三聚氰胺12~24份、液体石蜡10~30份、三氧化二锑8~20份、氢氧化镁40~80份、纳米氧化钛10~30份、硬脂酸锌10~22份、2,6-二叔丁基-4-甲基苯酚5~20份、阻燃剂20~40份、填充料20~50份、硅酮4~10份、有机硅烷5~20份。本发明提供的热塑性阻燃塑料，具有良好的阻燃性能。
Description
技术领域
本发明提供了一种热塑性塑料，具有良好的阻燃性能，属于高分子材料技术领域。
背景技术
塑料是具有特殊性能的高分子材料，其具有质量轻、化学稳定性好、耐腐蚀、绝缘性好、成型方便、成本低的特点，广泛应用于电子工业、汽车制造、航空航天、工业等领域。
但是塑料易燃烧，且燃烧速度快，会产生大量有毒气体。据统计，火灾中因窒息和烟气中毒造成的人员伤亡占火灾总伤亡人数的50～80%。近年来，电子电器、建筑、航空与汽车行业的快速发展对塑料的性能提出的更高的要求。其中，阻燃型的塑料不易燃烧，火焰传播速率小，质量损失速率及释热速率较低，而且具有一定的自熄性。但是，目前使用的阻燃塑料性能不能满足要求，并且多采用卤素阻燃剂，燃烧过程会放出卤化氢对人体造成严重的危害。
发明内容
为避免现有技术的不足之处，本发明提出一种高性能的热塑性阻燃塑料，低毒且不含卤素，阻燃性能优异，热解及燃烧时不产生有毒气体。采用的技术方案是：
一种热塑性阻燃塑料，由按照重量份计的如下原料制成：聚丙烯80~100份、聚乙烯40~60份、萜烯树脂60~100份、聚苯乙烯20~40份、丁腈橡胶20~30份、癸二酸二丁酯10~20份、聚酰亚胺10~20份、三聚氰胺12~24份、液体石蜡10~30份、三氧化二锑8~20份、氢氧化镁40~80份、纳米氧化钛10~30份、硬脂酸锌10~22份、2,6-二叔丁基-4-甲基苯酚5~20份、阻燃剂20~40份、填充料20~50份、硅酮4~10份、有机硅烷5~20份。
上述的聚丙烯的分子量范围优选为100000～300000。
上述的萜烯树脂优选为液态，粘度2~5Pa·s。
上述的聚苯乙烯分子量范围优选为5000~50000。
上述的纳米氧化钛优选为锐钛矿型，颗粒直径小于500纳米。
上述的阻燃剂优选为磷酸铵、聚磷酸胺、磷酸三苯酯、甲基磷酸二甲酯、硼酸锌中至少两种的混合物。
上述的填充料优选为白炭黑、石墨、云母粉、碳酸钙、滑石粉中的一种。制备方法是：
S1将各组分原料按比例投入到捏合机中混合均匀；
S2将S1所得混合物加入双螺杆挤出机中，挤出机及口模的温度控制在180℃～220℃范围内，并将挤出物冷却至环境温度；
S3将冷却后的挤出物送至造粒机，即得到热塑性阻燃塑料颗粒成品。
有益效果
本发明提供的热塑性阻燃塑料，具有良好的阻燃效果，不含有卤素阻燃剂，热解及燃烧时发烟量少，不产生有毒气体，并且所得到塑料的拉伸强度、耐冲击性能等力学性能较普通阻燃塑料有明显提高。
具体实施方式
照表1所示的重量备制各实施例的原料。
表1实施例1～实施例3的重量配比
以上实施例中，聚丙烯的分子量范围是100000～300000；萜烯树脂为液态，粘度2~5Pa·s；聚苯乙烯分子量范围是5000~50000；纳米氧化钛是锐钛矿型，颗粒直径小于500纳米；阻燃剂采用甲基磷酸二甲酯和硼酸锌按1：1混合而成；上述的填充料采用滑石粉。
各实施例的制备方法是：
实施例1
S1将各组分原料按比例投入到捏合机中混合均匀；
S2将S1所得混合物加入双螺杆挤出机中，挤出机及口模的温度控制在180℃，并将挤出物冷却至环境温度；
S3将冷却后的挤出物送至造粒机，即得到热塑性阻燃塑料颗粒成品。
实施例2
与实施例1的区别在于，S2步骤中的温度为220℃。
实施例3
与实施例1的区别在于，S2步骤中的温度为200℃。
性能试验
将以上实施例所得的热塑性阻燃塑料进行热塑成型，制成符合相关标准测试的样品后，进行性能试验，采用专利CN91104025中公开的阻燃塑料作为对照。试验数据如表2所示。
表2实施例1～实施例3以及对照例的性能测试数据
| 测试参数 | 试验方法 | 实施例1 | 实施例2 | 实施例3 | 对照例 |
| 拉伸强度MPa | GB/T1040-2006 | 35 | 34 | 36 | 27 |
| 断裂伸长率% | GB/T 1040-2006 | 13 | 10 | 11 | 8 |
| 冲击强度kJ/m2 | GB/T1043-2008 | 12.0 | 11.8 | 12.2 | 3.0 |
| 弯曲强度MPa | GB/T9341-2000 | 42 | 43 | 45 | 38 |
| 氧指数% | GB/T2406-1993 | 39 | 40 | 40 | 32 |
| 垂直燃烧级别 | UL-94 | V0 | V0 | V0 | V0 |
Claims (1)
1.一种热塑性阻燃塑料，由按照重量份计的如下原料制成：聚丙烯80~100份、聚乙烯40~60份、萜烯树脂60~100份、聚苯乙烯20~40份、丁腈橡胶20~30份、癸二酸二丁酯10~20份、聚酰亚胺10~20份、三聚氰胺12~24份、液体石蜡10~30份、三氧化二锑8~20份、氢氧化镁40~80份、纳米氧化钛10~30份、硬脂酸锌10~22份、2,6-二叔丁基-4-甲基苯酚5~20份、阻燃剂20~40份、填充料20~50份、硅酮4~10份、有机硅烷5~20份；制备方法是：S1 将各组分原料按比例投入到捏合机中混合均匀；S2 将S1所得混合物加入双螺杆挤出机中，挤出机及口模的温度控制在180℃～220℃范围内，并将挤出物冷却至环境温度；S3 将冷却后的挤出物送至造粒机，即得到热塑性阻燃塑料颗粒成品；所述的聚丙烯的分子量范围是100000～300000；所述的萜烯树脂为液态，粘度2~5Pa∙s；所述的聚苯乙烯分子量范围是5000~50000；所述的纳米氧化钛为锐钛矿型，颗粒直径小于500纳米；所述的阻燃剂是磷酸铵、聚磷酸胺、磷酸三苯酯、甲基磷酸二甲酯、硼酸锌中至少两种的混合物；所述的填充料是白炭黑、石墨、云母粉、碳酸钙、滑石粉中的一种。
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| CN103467854A (zh) * | 2013-09-22 | 2013-12-25 | 苏州市湘园特种精细化工有限公司 | 一种纳米聚丙烯阻燃塑料 |
| CN103496047B (zh) * | 2013-09-22 | 2016-03-30 | 苏州市湘园特种精细化工有限公司 | 一种纳米阻燃塑料的制备方法 |
| CN103497426B (zh) * | 2013-09-22 | 2015-11-18 | 苏州市湘园特种精细化工有限公司 | 一种纳米改性聚丙烯塑料 |
| CN103467852B (zh) * | 2013-09-22 | 2016-02-03 | 苏州市湘园特种精细化工有限公司 | 一种聚丙烯阻燃塑料 |
| CN103554670A (zh) * | 2013-11-08 | 2014-02-05 | 苏州新颖新材料科技股份有限公司 | 一种抗菌剂复合薄膜材料 |
| TWI490108B (zh) | 2013-12-20 | 2015-07-01 | Ind Tech Res Inst | 複合材料及其製造方法 |
| CN103739951B (zh) * | 2013-12-26 | 2016-04-20 | 吴江市东泰电力特种开关有限公司 | 一种聚丙烯耐寒开关 |
| CN104441887A (zh) * | 2014-11-19 | 2015-03-25 | 岳阳东方雨虹防水技术有限责任公司 | 阻燃型热塑性聚烯烃防水卷材及制备方法 |
| CN108276689A (zh) * | 2018-01-17 | 2018-07-13 | 天津科创复兴科技咨询有限公司 | 一种使用性能好的阻燃塑料及其制备方法 |
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