CN107880411A - 一种微发泡环保草坪颗粒 - Google Patents

一种微发泡环保草坪颗粒 Download PDF

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CN107880411A
CN107880411A CN201610861860.3A CN201610861860A CN107880411A CN 107880411 A CN107880411 A CN 107880411A CN 201610861860 A CN201610861860 A CN 201610861860A CN 107880411 A CN107880411 A CN 107880411A
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张振秀
郎咸华
张昕
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Jiangsu Da Mao Niu New Material Co ltd
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Qingdao University of Science and Technology
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Abstract

本发明提供了一种微发泡草坪颗粒的制备方法,其配方如下,生胶100份,填料20‑150份,增塑剂0‑20份,活性剂0‑6份,防老剂1‑5份,硫化剂0‑5份,促进剂0‑6份,着色剂1‑8份。所述制备方法的生产步骤为:(1)按配比将生胶投入密炼机中,依次加入填料、增塑剂、防老剂等,混炼均匀出料,下片,得到母胶;(2)将薄片放入挤出机中挤出成条,高温烘道硫化或辐射交联后造粒(3)将颗粒放入发泡装置进行超临界发泡,制备得到一种微发泡环保草坪颗粒。本发明提供的草坪颗粒,质轻高强,且无毒环保,而且,此颗粒具有不易脱落,使用寿命长的特点。

Description

一种微发泡环保草坪颗粒
技术领域
本发明属于高分子材料领域,更具体地说涉及一种填充在人造草坪中微发泡环保草坪颗粒的配方及制备方法。
背景技术
人造草坪是以非生命的塑料化纤产品为原料采用人工方法制作的拟草坪。人造草坪被广泛用于曲棍球、棒球、橄榄球的专用比赛场地,足球、网球、高尔夫球等运动的公众练***的提高和环保意识的增强,因此开发一种耐老化环保的草坪颗粒,是未来市场的发展趋势。
人造草坪颗粒的硫化方式大多为化学交联,本发明除使用无毒环保硫化体系的交联方式外,继续开发了使用辐照交联的硫化方法。与化学交联相比,辐照交联一般不使用催化剂、促进剂、硫化剂等,后处理简单,可在常温常压下反应,无污染,除辐照源外不需要特殊的设备。在许多方面优于化学交联。
针对未来的发展趋势,我们在无毒环保橡胶颗粒的基础上,继续研发了以氮气或二氧化碳等气体为物理发泡剂对草坪颗粒进行微孔发泡的方法,制得了一种质轻高强,且无毒环保的微发泡环保人造草坪颗粒。
发明内容
本发明的目的在于,针对现有草坪颗粒的不足,提供一种微发泡环保的人造草坪颗粒及制备方法。本发明以CM、EPDM、NBR、NR、BR、PE、PVC、EVA、SBS、POE 等为原料,一种或几种共混等得到新型的共混物,之后加入合适的填料及环保增塑剂、硫化剂、促进剂、活化剂、防老剂等,经过挤出、硫化、造粒后进行微孔发泡后得到一种质轻高弹,环保的人造草坪颗粒,可广泛应用于体育馆和学校操场等人造草坪之中。
为实现上述目的,本发明提供一种微发泡环保人造草坪颗粒及制备方法。
其中,所述人造草坪颗粒为微发泡颗粒,采用化学交联-发泡的方法或者辐照交联-发泡的方法。
其中,化学交联-发泡的配方为:生胶100份、填料30-150份、增塑剂5-50份、防老剂0.1-5份、硫化剂0-5份、促进剂0-6份、着色剂1-6份;其中,所述生胶为氯化聚乙烯橡胶(CM)与其他橡胶共混物(如EPDM、NBR、NR、BR)、氯化聚乙烯橡胶与热塑性塑料共混物(如聚乙烯、PVC、EVA、SBS、POE等),其中CM为50-100份,其他橡胶共混物或热塑性塑料为0-50份;所述填料为碳酸钙、高岭土、滑石粉中的一种或多种;所述增塑剂为石蜡油、环保型环烷油中的任一种;所述防老剂为防老剂Alba、防老剂BBM、防老剂W-300中的一种或多种;所述活性剂为氧化锌、硬脂酸、硬脂酸锌、聚乙二醇中的一种或多种;所述硫化剂为硫磺S或过氧化二异丙苯DCP中的任一种;所述硫化促进剂为DM,TMTD,TAIC、DPTT、BZ中的一种或多种;所述着色剂为钛菁绿G、5952颜料绿B、5001橡胶绿2B、5229碱式品绿色淀中的一种或多种。
其制备工艺如下:
(1)密炼机的温度设置为80-120℃,转速为40-70rpm,按配比将生胶投入密炼机中,依次加入填料、增塑剂、防老剂等,混炼5-7min后均匀出料,放置在开炼机上,混炼均匀,下薄片,停放24h,待用。
(2)挤出机温度设置为70℃-170℃,将混炼胶薄片放入挤出机中挤出胶条,然后使胶条通过高温烘道进行化学交联,最后使用造粒机造粒;或者将胶条造粒后,使胶粒通 过高温烘道进行化学交联。
(3)将预硫化后的颗粒放入高压反应釜中,升温并通入物理发泡剂至一定压力,当物理发泡剂在预硫化颗粒中达到饱和后,快速泄压,制得无毒环保发泡草坪颗粒。
(4)将发泡草坪颗粒放入另一烘道中二次硫化、定型。
其中,辐照交联-发泡的配方为:生胶100份、填料30-150份、增塑剂5-50份、防老剂0.1-5份、着色剂0-6份。其中,所述填料为碳酸钙、高岭土、滑石粉中的一种或多种;所述增塑剂为石蜡油、环烷油中的任一种;所述防老剂为防老剂Alba、防老剂BBM、防老剂W-300中的一种或多种;所述着色剂为钛菁绿G、5952颜料绿B、5001橡胶绿2B、5229碱式品绿色淀中的一种或多种。
其制备工艺如下:
(1)密炼机的温度设置为80-170℃,转速为40-70rpm,按配比将生胶投入密炼机中,依次加入填料、增塑剂、防老剂等,混炼5-7min后均匀出料,下薄片,停放24h,待用。
(2)挤出机温度设置为70℃-170℃,将混炼胶薄片放入挤出机中挤出胶条,然后使胶条通过电子辐照室,进行辐照交联,最后使用造粒机造粒;或者将胶条造粒后,使胶粒通过电子加速器辐照器或钴60辐照器进行辐照交联,辐照剂量为5-100kGy。
(3)将辐照后的颗粒放入高压反应釜中,升温并通入物理发泡剂至一定压力,当物理发泡剂在颗粒中达到饱和后,快速泄压,得到微发泡草坪颗粒。
其中,所述生胶为氯化聚乙烯橡胶(CM)与其他橡胶共混物(如EPDM、NBR、NR、BR)、氯化聚乙烯橡胶与热塑性塑料共混物(如聚乙烯、PVC、EVA、SBS、POE等),其中CM为50-100份,其他橡胶共混物或热塑性塑料为0-50份。
其中,制备步骤(3)微孔发泡过程中,反应釜温度设置为40-130℃,压力为5-30Mpa,饱和时间为0.5-10h,泄压时间为10-200s。
其中,所述物理发泡剂为CO2、N2、丁烷、戊烷中的任一种或几种的混合。
与现有技术相比,本发明具有以下优异的效果:
1.此种人造草坪颗粒,具有优异的耐油性、耐热性、抗臭氧性、耐紫外老化性、耐候性和着色性;
2.用此配方和工艺,制备得到的微发泡人造草坪颗粒具有质轻高强、无毒、环保、无污染等特征;
3.与现有产品相比具有质量轻、弹性好、耐老化性功能好、无毒环保等优点;
4.用此配方和工艺,制得的人造草坪颗粒不宜褪色。
具体实施方式
实施例1
胶料100份、填料50份、增塑剂5份、防老剂1份、硫化剂0.7份、促进剂0.2份,活化剂1.2份,着色剂3份;其中,所述胶料为氯化聚乙烯橡胶(CM)/三元乙丙橡胶配比为60/40;所述填料为碳酸钙;所述增塑剂为石蜡油;所述防老剂为防老剂Alba;所述硫化剂为过氧化二异丙苯DCP中;所述硫化促进剂为DM;所述活化剂为氧化锌;所述着色剂为钛菁绿G。
密炼机的温度设置为90℃,按配比将氯化聚乙烯橡胶/三元乙丙橡胶投入密炼机中,依次加入填料、增塑剂、防老剂、硫化剂、促进剂、活化剂、着色剂等,混炼8min后均匀出料,下薄片,停放24h,得到混炼胶。将混炼胶片放入挤出机中,温度为100℃,挤出胶条,然后烘道温度设置为170℃使胶条在烘道中进行硫化,冷却,切粒。之后将颗粒放入高压反应釜中,通入N2升温至70℃、加压至18MPa,饱和3h后,泄除压力,将制得的微发泡环保草坪颗粒放入170℃的烘道中进行后期硫化,最后将制得发泡密度 为1.05g/cm3的微发泡颗粒并检验、包装。
实施例2
胶料100份、填料80份、增塑剂10份、防老剂1份、硫化剂1份、促进剂1份,活化剂1.2份,着色剂6份;其中,所述胶料为氯化聚乙烯(CM)/聚乙烯配比为60/40;所述填料为高岭土;所述增塑剂为石蜡油;所述防老剂为防老剂BBM;所述硫化剂为过氧化二异丙苯DCP中;所述硫化促进剂为TMTD;所述活化剂为氧化锌;所述着色剂为5952颜料绿B。
密炼机的温度设置为110℃,按配比将氯化聚乙烯/乙烯醋酸乙烯酯投入密炼机中,依次加入填料、增塑剂、防老剂、硫化剂、促进剂、活化剂、着色剂等,混炼8min后均匀出料,下薄片,停放24h,得到混炼胶。将混炼胶片放入挤出机中,温度为120℃,挤出胶条,然后烘道温度设置为170℃使胶条在烘道中进行硫化10min,室温冷却后造粒,之后将颗粒放入高压反应釜中,通入N2升温至100℃、加压至20MPa,饱和2h,泄除压力,将制得的微发泡草坪颗粒放入160℃的烘道中进行后期硫化5min,制得发泡密度为1.09g/cm3微发泡草坪颗粒。
实施例3
胶料100份,填料100份,增塑剂10份,防老剂1份,染料1.5份。
其中,所述胶料为氯化聚乙烯/聚乙烯,配比为80/20;所述填料为碳酸钙与高岭土并用;所述增塑剂为环保型环烷油;所述防老剂为防老剂W-300;着色剂为5001橡胶绿2B。
密炼机温度设定为130℃,将氯化聚乙烯/聚乙烯弹性体投入密炼机中,依次加入填料、增塑剂、防老剂等,控制排胶温度低于120℃,混炼8min,出料、下片,得到混炼胶。将混炼胶片放入挤出机中,温度为120℃,挤出胶条,使其通过电子加速器辐照器进行辐照交联,辐照剂量为65kGy,室温冷却后造粒,之后将粒子放入高压反应釜中, 通入N2升温至120℃、加压至20MPa,饱和2h,泄除压力,制得发泡密度为1.25g/cm3的微发泡草坪颗粒。
实施例4
胶料100份,填料80份,增塑剂7份,防老剂1份,着色剂1.5份。
其中,所述胶料为氯化聚乙烯/天然橡胶,配比为60/40;所述填料为滑石粉;所述增塑剂为环保型环烷油;所述防老剂为防老剂Alba;着色剂为5229碱式品绿色淀。
密炼机温度设定为90℃,将氯化聚乙烯/天然橡胶按配比投入密炼机中,依次加入填料、增塑剂、防老剂等,控制排胶温度低于120℃,混炼8min,出料、下片,得到混炼胶。将混炼胶片放入挤出机中,温度为100℃,挤出胶条,使其通过电子加速器辐照器进行辐照交联,辐照剂量为50kGy,室温冷却后造粒,之后将颗粒放入高压反应釜中,通入N2升温至80℃、加压至16MPa,饱和3h,泄除压力,得到发泡密度为1.15g/cm3微发泡草坪颗粒。
以上所述仅为本发明的实施例,并不限制本发明,凡采用等同替换或等效变换的方式所获得的技术方案,均落在本发明的保护范围内。

Claims (6)

1.一种微发泡环保草坪颗粒的制备方法,其特征在于,所述人造草坪颗粒为微发泡颗粒,采用化学交联-发泡的方法或者辐照交联-发泡的方法。
2.根据权利要求书1所述一种微发泡环保草坪颗粒的制备方法,其特征在于化学交联-发泡的配方为:生胶100份、填料30-150份、增塑剂5-50份、防老剂0.1-5份、硫化剂0-5份、促进剂0-6份、活性剂0-6份;其中,所述填料为碳酸钙、高岭土、滑石粉中的一种或多种;所述增塑剂为石蜡油、环保型环烷油中的任一种;所述防老剂为防老剂Alba、防老剂BBM、防老剂W-300中的一种或多种;所述活性剂为氧化锌、硬脂酸、硬脂酸锌、聚乙二醇中的一种或多种;所述硫化剂为硫磺或过氧化二异丙苯中的任一种;所述硫化促进剂为DM、TMTD、TAIC、DPTT、BZ中的一种或多种;所述着色剂为钛菁绿G、5952颜料绿B、5001橡胶绿2B、5229碱式品绿色淀中的一种或多种;
其制备工艺如下:
(1)密炼机的温度设置为80-120℃,转速为40-70rpm,按配比将生胶投入密炼机中,依次加入填料、增塑剂、防老剂等,混炼5-7min后均匀出料,放置在开炼机上,混炼均匀,下薄片,停放24h,待用;
(2)挤出机温度设置为70℃-170℃,将混炼胶薄片放入挤出机中挤出胶条,然后使胶条通过高温烘道进行化学交联,最后使用造粒机造粒;或者将胶条造粒后,使胶粒通过高温烘道进行化学交联;
(3)将预硫化后的颗粒放入高压反应釜中,升温并通入物理发泡剂至一定压力,当物理发泡剂在预硫化颗粒中达到饱和后,快速泄压,制得无毒环保发泡草坪颗粒;
(4)将发泡草坪颗粒放入另一通道中二次硫化、定型。
3.根据权利要求1所述的一种微发泡环保草坪颗粒的制备方法,其特征在于辐照交联-发泡的配方为:生胶100份、填料30-150份、增塑剂5-50份、防老剂0.1-5份、着色剂0-6份。其中,所述填料为碳酸钙、高岭土、滑石粉中的一种或多种;所述增塑剂为石蜡油、环烷油中的任一种;所述防老剂为防老剂Alba、防老剂BBM、防老剂W-300中的一种或多种;所述着色剂为钛菁绿G、5952颜料绿B、5001橡胶绿2B、5229碱式品绿色淀中的一种或多种;
其制备工艺如下:
(1)密炼机的温度设置为80-170℃,转速为40-70rpm,按配比将生胶投入密炼机中,依次加入填料、增塑剂、防老剂等,混炼5-7min后均匀出料,下薄片,停放24h,待用。
(2)挤出机温度设置为70℃-170℃,将混炼胶薄片放入挤出机中挤出胶条,然后使胶条通过电子加速器辐照器或钴60辐照器,进行辐照交联,最后使用造粒机造粒;或者将胶条造粒后,使胶粒通过电子加速器辐照器或钴60辐照器,进行辐照交联,辐照剂量为5-100kGy。
(3)将辐照后的颗粒放入高压反应釜中,升温并通入物理发泡剂至一定压力,当物理发泡剂在颗粒中达到饱和后,快速泄压,得到微发泡草坪颗粒。
4.根据权利要求书2或3所述的一种微发泡环保草坪颗粒的制备方法,其特征在于,其中所述生胶为氯化聚乙烯橡胶(CM)与其他橡胶共混物(如EPDM、NBR、NR、BR)、氯化聚乙烯橡胶与热塑性塑料共混物(如聚乙烯、PVC、EVA、SBS、POE等),其中CM为50-100份,其他橡胶共混物或热塑性塑料为0-50份。
5.根据权利要求书2或3所述的一种微发泡环保草坪颗粒的制备方法,其特征在于制备步骤(3)微孔发泡过程中,反应釜温度设置为40-130℃,压力为5-30Mpa,饱和时间为0.5-10h,泄压时间为10-200s。
6.根据权利要求书2或3所述的一种微发泡环保草坪颗粒的制备方法,其特征在于,所述物理发泡剂为CO2、N2、丁烷、戊烷中的任一种或几种的混合。
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CN109971046A (zh) * 2019-04-07 2019-07-05 常州劲友新材料科技有限公司 一种草坪填充颗粒
CN110157105A (zh) * 2019-05-20 2019-08-23 广东川奥高新科技有限公司 一种人造草坪填充用乙丙橡胶颗粒及其制备方法
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