CN106380677A - 一种可发泡聚丙烯合金料 - Google Patents

一种可发泡聚丙烯合金料 Download PDF

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CN106380677A
CN106380677A CN201610516352.1A CN201610516352A CN106380677A CN 106380677 A CN106380677 A CN 106380677A CN 201610516352 A CN201610516352 A CN 201610516352A CN 106380677 A CN106380677 A CN 106380677A
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alloy material
polypropylene alloy
expandable polypropylene
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汪根林
温原
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ZHEJIANG ROTOUN PLASTIC TECHNOLOGY Co Ltd
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Abstract

本发明公开了一种可发泡聚丙烯合金料，按重量份计由以下原料组分混合制成：聚丙烯100份，MBS树脂5‑20份，交联剂0.5‑2份，自由基引发剂0.5‑2份，发泡剂2‑10份，无机填料5‑15份，润滑剂0.5‑2份，抗氧剂0.5‑1份。本发明可以在无压力模具中受热发泡成型，因而可适用于各种形状产品的发泡空间制备。

Description

一种可发泡聚丙烯合金料
技术领域
本发明涉及高分子材料领域，特别涉及一种可发泡聚丙烯合金料。
背景技术
PP是五大通用塑料之一，用途广泛。PP发泡材料以质量轻、比强度高、保温隔音性好、缓冲减震效果、低热导等性能应用于轻工、农业、建材、包装、汽车等领域。发泡聚丙烯（EPP）是一种性能卓越的高结晶性聚合物/气体复合材料，具有优异的抗震吸能性能和隔热性，形变后回复率高，耐热性好，耐化学腐蚀性和耐油性强，且可降解材料，被称为绿色泡沫，是继传统的聚苯乙烯泡沫（EPS）聚氨酯泡沫（EPU）和聚乙烯泡沫（EPE）之后的新一代环保泡沫材料，拥有广泛的应用前景。但是通用聚丙烯为结晶性聚合物，结晶度较高，在到达结晶熔融温度后，熔体粘度迅速下降，使发泡产生的气体很难保持住。因此从根本上改善PP的可发泡性是一个亟待解决的问题。
专利CN101805481A提供了一种将聚丙烯与交联剂、抗老化剂共混后，通过辐照交联得到一种高倍率的聚丙烯发泡材料。该法发泡过程中需要辐照才能实现。
专利CN104292611A提供了一种发泡聚丙烯材料及其制备方法。该发明公开了一种发泡聚丙烯材料，其原料包括如下组分：聚丙烯55-80份，PE和PP的半结晶性共聚物10-30份，发泡剂3-10份，成核剂1-5份，所述份数为质量份数。该发明系采用简单高分子共混工艺制备，由于熔体强度有限，发泡倍数在4-8倍之间，且由于系聚丙烯和PE-PP结晶共聚物共混体系，泡体硬度也不够。
发明内容
本发明的目的在于提供一种可发泡聚丙烯合金料，可以在无压力模具中受热发泡成型，因而可适用于各种形状产品的发泡空间制备。
本发明解决其技术问题所采用的技术方案是：
一种可发泡聚丙烯合金料，按重量份计由以下原料组分混合制成：聚丙烯100份，MBS树脂5-20份，交联剂0.5-2份，自由基引发剂0.5-2份，发泡剂2-10份，无机填料5-15份，润滑剂0.5-2份，抗氧剂0.5-1份。
作为优选，所述自由基引发剂为过氧化二异丙苯、过氧化苯甲酰中的一种或两种。
作为优选，所述发泡剂为4,4ˊ-氧化二苯磺酰肼、偶氮二甲酰胺、碳酸氢铵中的一种或几种。
作为优选，所述无机填料为碳酸钙、滑石粉中的一种或两种。
作为优选，所述润滑剂为PE蜡、硬脂酸、硬脂酸锌中的一种或两种。
作为优选，所述抗氧剂为4,4'-硫代双(6-叔丁基-3-甲基苯酚)、抗氧剂1010中的一种或几种。
作为优选，所述交联剂为二乙烯苯。
作为优选，其制备方法为：将各组分按配比混合均匀，通过双螺杆挤出机挤出，水冷拉条切粒。
作为优选，双螺杆挤出机的加工温度区间设置为130-160℃。
本发明的有益效果是：
（1）采用了聚丙烯在线反应接枝技术，制得高熔体强度聚丙烯，从而最终得到高发泡倍率的聚丙烯材料。
（2）引入MBS刚性共聚物接枝到聚丙烯大分子链上，从而使得泡体硬度大大提高，泡体表面硬度可达邵氏D 75度。
（3）可以在无压力模具中受热发泡成型，因而可适用于各种形状产品的发泡填充。
具体实施方式
下面通过具体实施例，对本发明的技术方案作进一步的具体说明。
本发明中，若非特指，所采用的原料和设备等均可从市场购得或是本领域常用的。下述实施例中的方法，如无特别说明，均为本领域的常规方法。
本发明实施例所用原料如下：
（1）聚丙烯（PP），扬子石化，F401牌号；
（2）MBS， S050，广州市华生塑料原料有限公司；
（3）二乙烯苯，市售化学试剂；
（4）过氧化二异丙苯（DCP），市售化学品；
（5）过氧化苯甲酰（BPO），市售化学品；
（6）4,4ˊ-氧化二苯磺酰肼，市售化学品；
（7）偶氮二甲酰胺，市售化学品；
（8）碳酸氢铵，市售化学品；
（9）碳酸钙，江西添锦实业发展有限公司，轻质碳酸钙，3000目；
（10）滑石粉，山东金宇化工有限责任公司，1500目；
（11）硬脂酸，市售化学品；
（12）4,4'-硫代双(6-叔丁基-3-甲基苯酚)，市售化学品；
（13）抗氧剂1010，市售化学品。
实施例1：
按重量份，将聚丙烯F401牌号100份，MBS（牌号S050）树脂20份，二乙烯苯0.5份，DCP 2份，偶氮二甲酰胺2份，滑石粉15份，硬脂酸0.5份，4,4'-硫代双(6-叔丁基-3-甲基苯酚)0.5份，分别称量好。
将上述各种原料在低速搅拌机中混合均匀，搅拌机转速100转/min，混合5分钟。再通过双螺杆挤出机挤出，双螺杆挤出机螺杆直径为65，长径比为33。挤出机转速为200rpm，挤出机加工温度区间设置为130-160℃，水冷拉条切粒，即可得到一种可发泡聚丙烯合金料。
所得到的一种可发泡聚丙烯合金料，置于200℃下，保持10分钟，得到的发泡产品密度为0.3 g/cm3，表面硬度邵氏D 75度。
实施例2：
按重量，将聚丙烯F401牌号100份，MBS（牌号S050）树脂5份，二乙烯基苯2份，DCP 0.5份，4,4ˊ-氧化二苯磺酰肼1份，偶氮二甲酰胺1份，碳酸氢铵5份，碳酸钙5份，PE蜡0.5份，抗氧剂1010 1份，分别称量好。
将上述各种原料在低速搅拌机中混合均匀，搅拌机转速100转/min，混合5分钟。再通过双螺杆挤出机挤出，双螺杆挤出机螺杆直径为65，长径比为33。挤出机转速为200rpm，挤出机加工温度区间设置为130-160℃，水冷拉条切粒，即可得到一种可发泡聚丙烯合金料。
所得到的一种可发泡聚丙烯合金料，置于200℃下，保持10分钟，得到的发泡产品密度为0.1 g/cm3，表面硬度邵氏D 66度。
实施例3：
按重量，将聚丙烯F401牌号100份，MBS（牌号S050）树脂5份，二乙烯基苯0.5份，BPO 1.5份，DCP 0.5份，4,4ˊ-氧化二苯磺酰肼10份，碳酸钙15份，硬脂酸锌2份，4，4'-硫代（3-甲基-6-叔丁基苯酚）0.5份，抗氧剂1010 0.5份，分别称量好。
将上述各种原料在低速搅拌机中混合均匀，搅拌机转速100转/min，混合5分钟。再通过双螺杆挤出机挤出，双螺杆挤出机螺杆直径为65，长径比为33。挤出机转速为200rpm，挤出机加工温度区间设置为130-160℃，水冷拉条切粒，即可得到一种可发泡聚丙烯合金料。
所得到的一种可发泡聚丙烯合金料，置于200℃下，保持10分钟，得到的发泡产品密度为0.09 g/cm3，表面硬度邵氏D 45度。
实施例4：
按重量份，将聚丙烯F401牌号100份，MBS（牌号S050）树脂20份，二乙烯苯2份，DCP 0.5份，偶氮二甲酰胺10份，碳酸钙10份，滑石粉5份，PE蜡1份，硬脂酸1份，4,4'-硫代双(6-叔丁基-3-甲基苯酚) 0.5份，分别称量好。
将上述各种原料在低速搅拌机中混合均匀，搅拌机转速100转/min，混合5分钟。再通过双螺杆挤出机挤出，双螺杆挤出机螺杆直径为65，长径比为33。挤出机转速为200rpm，挤出机加工温度区间设置为130-160℃，水冷拉条切粒，即可得到一种可发泡聚丙烯合金料。
所得到的一种可发泡聚丙烯合金料，置于200℃下，保持10分钟，得到的发泡产品密度为0.07 g/cm3，表面硬度邵氏D 47度。
由以上实施例可以看出，本发明一种可发泡聚丙烯合金料，系采用了在线接枝反应，将MBS刚性大分子接枝到聚丙烯大分子上，从而大幅提高了聚丙烯的熔体强度，以确保得到发泡倍率高的可发泡聚丙烯材料。本发明一种可发泡聚丙烯合金料，发泡密度可达0.07g/cm3。并且由于引入了刚性MBS共聚物，因而得到的发泡产品表面具有高硬度特性，表面硬度最高可达邵氏D75度。本发明一种可发泡聚丙烯材料，可应用于制造各种形状的发泡制品。
以上所述的实施例只是本发明的一种较佳的方案，并非对本发明作任何形式上的限制，在不超出权利要求所记载的技术方案的前提下还有其它的变体及改型。

Claims (9)

1.一种可发泡聚丙烯合金料，其特征在于，按重量份计由以下原料组分混合制成：聚丙烯100份，MBS树脂5-20份，交联剂0.5-2份，自由基引发剂0.5-2份，发泡剂2-10份，无机填料5-15份，润滑剂0.5-2份，抗氧剂0.5-1份。
2.根据权利要求1所述的一种可发泡聚丙烯合金料，其特征在于：所述自由基引发剂为过氧化二异丙苯、过氧化苯甲酰中的一种或两种。
3.根据权利要求1或2所述的一种可发泡聚丙烯合金料，其特征在于：所述发泡剂为4,4ˊ-氧化二苯磺酰肼、偶氮二甲酰胺、碳酸氢铵中的一种或几种。
4.根据权利要求1或2所述的一种可发泡聚丙烯合金料，其特征在于：所述无机填料为碳酸钙、滑石粉中的一种或两种。
5.根据权利要求1或2所述的一种可发泡聚丙烯合金料，其特征在于：所述润滑剂为PE蜡、硬脂酸、硬脂酸锌中的一种或两种。
6.根据权利要求1或2所述的一种可发泡聚丙烯合金料，其特征在于：所述抗氧剂为4,4'-硫代双(6-叔丁基-3-甲基苯酚)、抗氧剂1010中的一种或几种。
7.根据权利要求1或2所述的一种可发泡聚丙烯合金料，其特征在于：所述交联剂为二乙烯苯。
8.根据权利要求1所述的一种可发泡聚丙烯合金料，其特征在于，其制备方法为：将各组分按配比混合均匀，通过双螺杆挤出机挤出，水冷拉条切粒。
9.根据权利要求8所述的一种可发泡聚丙烯合金料，其特征在于：双螺杆挤出机的加工温度区间设置为130-160℃。
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CN112210169A (zh) * 2020-10-26 2021-01-12 江苏金发科技新材料有限公司 一种***滤瓶用聚丙烯复合材料及其制备方法
CN114891297A (zh) * 2022-03-12 2022-08-12 吉岳新材料科技(江苏)有限公司 一种复合epp/相变材料及其制备方法

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CN112210169A (zh) * 2020-10-26 2021-01-12 江苏金发科技新材料有限公司 一种***滤瓶用聚丙烯复合材料及其制备方法
CN114891297A (zh) * 2022-03-12 2022-08-12 吉岳新材料科技(江苏)有限公司 一种复合epp/相变材料及其制备方法

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