CN103724792A - 一种低烟无卤环保eva/lldpe阻燃复合材料 - Google Patents
一种低烟无卤环保eva/lldpe阻燃复合材料 Download PDFInfo
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Abstract
本发明公开了一种低烟无卤环保EVA/LLDPE阻燃复合材料，它的原料组分及重量份数为：A为基础树脂：EVA和LLDPE，100份；B为相容剂：马来酸酐接枝聚乙烯PE-g-MAH，20～30份；C为无机阻燃剂：改性氢氧化镁80～90份，改性氢氧化铝90～100份；D为抗氧剂：0.5～1份；E为润滑剂：2.5～4份。它的制备方法为原料混匀，在塑化温度140℃～150℃，硫化温度160℃～180℃获得。本发明制备的EVA/LLDPE阻燃复合材料具有良好阻燃性能，同时具有优良的拉伸强度和断裂伸长率。
Description
技术领域
本发明属于EVA材料技术领域，具体涉及一种低烟无卤环保EVA/LLDPE阻燃复合材料。
背景技术
乙烯—醋酸乙烯共聚物（EVA）因具有良好的柔韧性、光学性能、耐低温性能及耐环境应力开裂性，而被广泛应用于发泡材料、功能性棚膜、包装膜，热熔胶、电线电缆及玩具等领域。但EVA同大多数聚合物一样，容易燃烧，且放热量大、发烟量大，并释放有毒气体，从而大大限制了EVA的应用。
含卤阻燃剂具有优良的阻燃性能，曾被广泛应用，但在火灾发生时，这类含卤阻燃材料会产生大量的烟雾和有毒的腐蚀性卤化氢气体，造成“二次危害”。
针对以上问题，本发明采用无卤、低烟、低毒的环保型阻燃剂制备阻燃EVA复合材料。该复合材料不但阻燃效果好，并且机械性能优良，即使发生火灾发烟量小，且不具有毒性，大大增加了EVA材料的应用范围及使用安全性。
发明内容
本发明目的是解决现有EVA材料阻燃性能的问题，提供一种低烟无卤环保EVA/LLDPE阻燃复合材料及其制备方法，制备出的EVA/LLDPE复合材料具有良好的阻燃性能，同时具备较高的拉伸强度和断裂伸长率。
本发明的技术方案如下：
一种低烟无卤环保EVA/LLDPE阻燃复合材料，原料组分及重量份数为：
A为基础树脂：乙烯—醋酸乙烯共聚物EVA和线型低密度聚乙烯LLDPE，100份；
B为相容剂：马来酸酐接枝聚乙烯PE-g-MAH，20～30份；
C为无机阻燃剂：改性氢氧化镁80～90份，改性氢氧化铝90～100份；
D为抗氧剂：0.5～1份；
E为润滑剂：2.5～4份。
所述的基础树脂中EVA和LLDPE的重量比为5～8：1。
所述的改性氢氧化镁是改性水镁石粉，是将水镁石超细研磨后矿浆中加入KH550硅烷偶联剂（3-氨丙基三乙氧基硅烷）和JL- G02FL超分散偶联改性剂（南京金来旺塑胶技术有限公司生产），搅拌反应30～60分钟，再过滤烘干而得，其中KH550硅烷偶联剂用量为水镁石矿粉重量的 0.4%～0.8%，JL- G02FL超分散偶联改性剂用量为水镁石矿粉重量的0.8%～1.2%。采用天然水镁石粉，原料易得，资源丰富，价格低廉，先对水镁石粉进行湿法改性处理，改善其分散性和表面状况，与高分子材料的相容性增强，添加后对材料的力学性能产生的负面影响较小。
所述的改性氢氧化铝是将硅烷偶联剂ZQ-172【乙烯基-三（2-甲氧基乙氧基）硅烷】干法改性氢氧化铝，硅烷偶联剂ZQ-172用量为氢氧化铝重量的0.8%～1.2%。
所述的抗氧剂为1010，168或DLTP的一种或多种。它的作用是抑制产品老化，加强产品的耐高温性能。
所述的润滑剂为PE蜡或芥酸的一种或两种。
本发明中的低烟无卤环保EVA/LLDPE阻燃复合材料制备方法为：将EVA、LLDPE、PE-g-MAH、改性氢氧化镁、改性氢氧化铝充分混合，再加入抗氧剂、润滑剂，在塑化温度140℃～150℃，硫化温度160℃～180℃获得。
具体实施例
下面结合实施例对本发明作进一步详细说明，但它们不是对本发明的限定。
实施例1：
（1）改性氢氧化镁和改性氢氧化铝的制备
将水镁石超细研磨后矿浆中加入KH550硅烷偶联剂和JL- G02FL超分散偶联改性剂，搅拌反应60分钟，再过滤烘干而得，其中KH550硅烷偶联剂用量为水镁石矿粉重量的0.4%，JL- G02FL超分散偶联改性剂用量为水镁石矿粉重量的1.2%。
改性氢氧化铝是将硅烷偶联剂ZQ-172干法改性氢氧化铝，硅烷偶联剂ZQ-172用量为氢氧化铝重量的0.8%。
（2）原料配方
乙烯—醋酸乙烯共聚物EVA 85份
线型低密度聚乙烯LLDPE 15份；
马来酸酐接枝聚乙烯PE-g-MAH 30份；
改性氢氧化镁 80份；
改性氢氧化铝 100份；
抗氧剂1010 0.5份；
抗氧剂DLTP 0.25份；
PE蜡 2份；
芥酸 0.5份。
（3）制备方法
将EVA、LLDPE、PE-g-MAH、改性氢氧化镁、改性氢氧化铝充分混合，再加入抗氧剂1010、抗氧剂DLTP、PE蜡、芥酸，在塑化温度145℃，硫化温度160℃获得。
实施例2：
（1）改性氢氧化镁和改性氢氧化铝的制备
将水镁石超细研磨后矿浆中加入KH550硅烷偶联剂和JL- G02FL超分散偶联改性剂，搅拌反应30分钟，再过滤烘干而得，其中KH550硅烷偶联剂用量为水镁石矿粉重量的 0.8%，JL- G02FL超分散偶联改性剂用量为水镁石矿粉重量的0.9%。
改性氢氧化铝是将硅烷偶联剂ZQ-172干法改性氢氧化铝，硅烷偶联剂ZQ-172用量为氢氧化铝重量的1.2%。
（2）原料配方
乙烯—醋酸乙烯共聚物EVA 87.5份
线型低密度聚乙烯LLDPE 12.5份；
马来酸酐接枝聚乙烯PE-g-MAH 25份；
改性氢氧化镁 90份；
改性氢氧化铝 90份；
抗氧剂168 0.5份；
抗氧剂DLTP 0.5份；
PE蜡 3.0份。
（3）制备方法
将EVA、LLDPE、PE-g-MAH、改性氢氧化镁、改性氢氧化铝充分混合，再加入抗氧剂168、抗氧剂DLTP 、PE蜡，在塑化温度148℃，硫化温度168℃获得。
实施例3：
（1）改性氢氧化镁和改性氢氧化铝
改性氢氧化镁为无锡市英普立阻燃材料有限公司所制。
改性氢氧化铝是将硅烷偶联剂ZQ-172干法改性氢氧化铝，硅烷偶联剂ZQ-172用量为氢氧化铝重量的1.0%。
（2）原料配方
乙烯—醋酸乙烯共聚物EVA 88.8份
线型低密度聚乙烯LLDPE 11.2份；
马来酸酐接枝聚乙烯PE-g-MAH 20份；
改性氢氧化镁 85份；
改性氢氧化铝 95份；
抗氧剂1010 1.0份；
PE蜡 1.5份；
芥酸 2.5份。
（3）制备方法
将EVA、LLDPE、PE-g-MAH、改性氢氧化镁、改性氢氧化铝充分混合，再加入抗氧剂1010、PE蜡、芥酸，在塑化温度150℃，硫化温度175℃获得。
通过以上实施例制得的低烟无卤环保EVA/LLDPE阻燃复合材料的性能检测如下：
| 实施例 | 拉伸强度（MPa） | 断裂伸长率（%） | 氧指数（%） |
| 实施例1 | 11.2 | 286 | 33.9 |
| 实施例2 | 12.4 | 272 | 33.4 |
| 实施例3 | 11.8 | 284 | 33.6 |
Claims (6)
1.一种低烟无卤环保EVA/LLDPE阻燃复合材料，其特征在于：原料组分及重量份数为：
A为基础树脂：EVA和LLDPE，100份；
B为相容剂：马来酸酐接枝聚乙烯PE-g-MAH，20～30份；
C为无机阻燃剂：改性氢氧化镁80～90份，改性氢氧化铝90～100份；
D为抗氧剂：0.5～1份；
E为润滑剂：2.5～4份。
2.根据权利要求1所述的一种低烟无卤环保EVA/LLDPE阻燃复合材料，其特征在于，所述的基础树脂中EVA和LLDPE的重量比为5～8：1。
3.根据权利要求1所述的一种低烟无卤环保EVA/LLDPE阻燃复合材料，其特征在于，所述的改性氢氧化镁是改性水镁石粉，是将水镁石超细研磨后矿浆中加入KH550硅烷偶联剂和JL- G02FL超分散偶联改性剂，搅拌反应30～60分钟，再过滤烘干而得，其中KH550硅烷偶联剂用量为水镁石矿粉重量的 0.4%～0.8%，JL- G02FL超分散偶联改性剂用量为水镁石矿粉重量的0.8%～1.2%。
4.根据权利要求1所述的一种低烟无卤环保EVA/LLDPE阻燃复合材料，其特征在于，所述的改性氢氧化铝是将硅烷偶联剂ZQ-172干法改性氢氧化铝，硅烷偶联剂ZQ-172用量为氢氧化铝重量的0.8%～1.2%。
5.根据权利要求1所述的一种低烟无卤环保EVA/LLDPE阻燃复合材料，其特征在于，所述的抗氧剂为1010，168或DLTP的一种或多种。
6.根据权利要求1所述的一种低烟无卤环保EVA/LLDPE阻燃复合材料，其特征在于，所述的润滑剂为PE蜡或芥酸的一种或两种。
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105131415A (zh) * | 2015-09-15 | 2015-12-09 | 嘉兴海棠电子有限公司 | 一种数据电缆用热塑性低烟无卤阻燃聚烯烃复合材料及其制备方法 |
| CN105949598A (zh) * | 2016-06-26 | 2016-09-21 | 陈旭 | 一种水菱镁石、斜方云石阻燃的eva/lldpe材料 |
| CN113698694A (zh) * | 2021-10-08 | 2021-11-26 | 辽宁精华新材料股份有限公司 | 一种无卤阻燃电缆材料的制备方法 |
| CN114292532A (zh) * | 2022-01-06 | 2022-04-08 | 辽宁鑫阳新材料科技有限公司 | 一种氢氧化镁超细化及表面改性的方法及其应用 |
| CN116041838A (zh) * | 2023-03-09 | 2023-05-02 | 贵州大愚智水智能科技有限公司 | 一种磷石膏改性阻燃pe材料的配方及制备方法 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105131415A (zh) * | 2015-09-15 | 2015-12-09 | 嘉兴海棠电子有限公司 | 一种数据电缆用热塑性低烟无卤阻燃聚烯烃复合材料及其制备方法 |
| CN105949598A (zh) * | 2016-06-26 | 2016-09-21 | 陈旭 | 一种水菱镁石、斜方云石阻燃的eva/lldpe材料 |
| CN113698694A (zh) * | 2021-10-08 | 2021-11-26 | 辽宁精华新材料股份有限公司 | 一种无卤阻燃电缆材料的制备方法 |
| CN114292532A (zh) * | 2022-01-06 | 2022-04-08 | 辽宁鑫阳新材料科技有限公司 | 一种氢氧化镁超细化及表面改性的方法及其应用 |
| CN116041838A (zh) * | 2023-03-09 | 2023-05-02 | 贵州大愚智水智能科技有限公司 | 一种磷石膏改性阻燃pe材料的配方及制备方法 |
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