CN104277301A - 一种防老化土工格栅及制备方法 - Google Patents

一种防老化土工格栅及制备方法 Download PDF

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CN104277301A
CN104277301A CN201410575591.5A CN201410575591A CN104277301A CN 104277301 A CN104277301 A CN 104277301A CN 201410575591 A CN201410575591 A CN 201410575591A CN 104277301 A CN104277301 A CN 104277301A
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叶磊
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ANHUI JIEAO MAKE COMPOSITES TECHNOLOGY Co Ltd
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Abstract

本发明涉及一种防老化土工格栅,由下列重量份的组份原料加工而得:HDPE70-80、LLDPE20-30、EVA8-12、2,2'-硫代双[3-(3,5-二叔丁基-4-羟基苯基)丙酸乙酯]1-2、抗氧剂BHT1-2、光稳定剂7440.1-0.3、碳酸钙4-6、改性炭黑母料3-5。将配方材料混炼,挤出,熔体通过三辊压光机成型板材,板材经过冲压机进行冲孔,孔板经过升温后拉伸,即制得土工格栅。本发明的加工出的改性土工格栅,耐老化性能好,各项机械性能高,且生产加工成本低。

Description

一种防老化土工格栅及制备方法
技术领域
    本发明涉及土工格栅的制造,具体涉及一种防老化土工格栅及制备方法。
背景技术
  随着土工合成材料行业的发展,越来越多的土工格栅产品推向了市场,土工格栅的主要竞争就是产品性能和价格成本竞争。由于聚丙烯土工格栅领域和使用区域广泛,因此对土工格栅要求其具有多种性能。但是只靠一种聚合物来实现这些性能是很难实现的,因此需要对土工格栅配方进行改性成为这个行业的必然趋势。 在制备高性能材料方面纤维增强是一种普遍而有效的方法,增强所用的纤维一般为玻璃纤维、碳纤维等。由这些纤维填充得到的树脂增强效果明显,能够使得相同规格的土工格栅更薄。但是使用玻璃纤维和碳纤维后,聚合物的拉伸伸长率又会有很大下降,导致土工格栅拉伸很短,产品单位面积重量上升,使得生产成本反而增加,不利于达到低成本化的目的。
   在土工格栅中加入改性炭黑等填料,可使其具有较好的耐酸、耐碱、耐腐蚀和抗老化性能,提高抗冲击强度和拉伸强度。
 
发明内容
本发明提供了一种防老化土工格栅及制备方法。本发明通过配方原材料的改性,从而得到改善土工格的抗冲击强度强度,防老化效果,同时降低了原材料成本。   
本发明所采用技术方案如下: 
一种防老化土工格栅,其特征在于,由下列重量份的组份原料加工而得:HDPE 70-80、LLDPE 20-30、EVA 8-12、2,2'-硫代双[3-(3,5-二叔丁基-4-羟基苯基)丙酸乙酯] 1-2、抗氧剂BHT 1-2、光稳定剂7440.1-0.3、碳酸钙4-6、改性炭黑母料 3-5,
 所述的改性炭黑母料的制备方法:(1)按重量份称取聚乙烯30-40、聚丙烯10-20、炭黑 40-50、丙烯酸酯 0.2-1.5、氧化锌0.1-0.4、抗氧剂168  0.1-0.3、防老化剂 0.1-0.3、煤油 0.5-1.0、粉煤灰1-3、 聚甘油辛癸酸酯3-5、滑石粉 4-6;(2)将称量好的炭黑、丙烯酸酯、氧化锌加入搅拌机中,在60℃-180℃的温度下充分混合,得到混合物料A;(3)将聚乙烯、聚丙烯、滑石粉、抗氧剂1010 、防老化剂 、白油、粉煤灰、 聚甘油辛癸酸酯等其余原料组分依次投入高速搅拌机中高速搅拌3-5分钟,得到混合物物料B;(4)将A和B混合均匀后得到共混物加入到双螺杆挤出机中,螺杆转速为80-130 rpm,加热机筒温度180-200℃熔融挤出,冷却,造粒即可。
  所述的防老化土工格栅的制备方法,其特征在于,包括以下步骤:
 (1)按配方比例称取各组分原料;
 (2)将称取的HDPE 、LLDPE 、EVA 、2,2'-硫代双[3-(3,5-二叔丁基-4-羟基苯基)丙酸乙酯]、抗氧剂BHT、光稳定剂744加入到高速混料机中,高速混料5-10min,然后再加入碳酸钙高速混合10-20min后将物料放出 ;
(3) 将混合好的物料送入造粒机的加料斗中,开启造粒机,控制造粒机的转速为250-350r/min,控制造粒机料筒前部、中部、后部以及机头的温度分别为:220~225℃、210~215℃、200~205℃、230~235℃,从造粒机中挤出的物料经水冷、切粒、过筛、干燥、,即得到混炼料A;
  (4)将干燥后的混炼料A与改性炭黑母料混合后,再通过挤出机在低于 230℃温度下挤出,熔体通过三辊压光机成型板材,板材经过冲压机使用模具进行冲孔,孔板经过升温到90℃ -110℃后拉伸,即制得防老化土工格栅。        
    本发明取得的有益效果在于:
    本发明在配方中将HDPE 、LLDPE 、EVA 混合作为主料,再添加复合抗氧剂、光稳定剂相互协调增效,大大增加了土工格栅的防老化性,改性填料的添加改善了格栅的拉伸强度和冲击强度,本配方加工出的改性土工格栅比相同规格的聚丙烯土工格栅土工格栅更薄,伸长率提高,生产成本下降,在相同厚度下,产品的强度提高 10%-18%;单肋长度提高 18%-22%;冲击强度提高 30%-45%。
具体实施方式
   以下结合实施例对本发明作进一步说明,
一种防老化土工格栅, 由下列重量(kg)的组份原料加工而得:HDPE 75、LLDPE 25、EVA 10、2,2'-硫代双[3-(3,5-二叔丁基-4-羟基苯基)丙酸乙酯]1.5、抗氧剂BHT 1、光稳定剂7440.2、碳酸钙4-6、改性炭黑母料 4,
 其中,改性炭黑母料的制备方法:(1)按重量(kg)称取聚乙烯35、聚丙烯15、炭黑 45、丙烯酸酯 0.8、氧化锌0.3、抗氧剂168  0.2、防老化剂 0.2、煤油 0.6、粉煤灰2、 聚甘油辛癸酸酯4、滑石粉5;(2)将称量好的炭黑、丙烯酸酯、氧化锌加入搅拌机中,在60℃-180℃的温度下充分混合,得到混合物料A;(3)将聚乙烯、聚丙烯、滑石粉、抗氧剂1010 、防老化剂 、白油、粉煤灰、 聚甘油辛癸酸酯等其余原料组分依次投入高速搅拌机中高速搅拌3-5分钟,得到混合物物料B;(4)将A和B混合均匀后得到共混物加入到双螺杆挤出机中,螺杆转速为80-130 rpm,加热机筒温度180-200℃熔融挤出,冷却,造粒即可。
 防老化土工格栅的制备方法,包括以下步骤:
(1)按配方比例称取各组分原料;
(2)将称取的HDPE 、LLDPE 、EVA 、2,2'-硫代双[3-(3,5-二叔丁基-4-羟基苯基)丙酸乙酯]、抗氧剂BHT、光稳定剂744加入到高速混料机中,高速混料5-10min,然后再加入碳酸钙高速混合10-20min后将物料放出 ;
(3) 将混合好的物料送入造粒机的加料斗中,开启造粒机,控制造粒机的转速为250-350r/min,控制造粒机料筒前部、中部、后部以及机头的温度分别为:220~225℃、210~215℃、200~205℃、230~235℃,从造粒机中挤出的物料经水冷、切粒、过筛、干燥、,即得到混炼料A;
  (4)将干燥后的混炼料A与改性炭黑母料混合后,再通过挤出机在低于 230℃温度下挤出,熔体通过三辊压光机成型板材,板材经过冲压机使用模具进行冲孔,孔板经过升温到90℃ -110℃后拉伸,即制得防老化土工格栅。
本发明的土工格栅不同规格的性能检测值如下表:

Claims (2)

1.一种防老化土工格栅,其特征在于,由下列重量份的组份原料加工而得:HDPE 70-80、LLDPE 20-30、EVA 8-12、2,2'-硫代双[3-(3,5-二叔丁基-4-羟基苯基)丙酸乙酯] 1-2、抗氧剂BHT 1-2、光稳定剂7440.1-0.3、碳酸钙4-6、改性炭黑母料 3-5,
 所述的改性炭黑母料的制备方法:(1)按重量份称取聚乙烯30-40、聚丙烯10-20、炭黑 40-50、丙烯酸酯 0.2-1.5、氧化锌0.1-0.4、抗氧剂168  0.1-0.3、防老化剂 0.1-0.3、煤油 0.5-1.0、粉煤灰1-3、 聚甘油辛癸酸酯3-5、滑石粉 4-6;(2)将称量好的炭黑、丙烯酸酯、氧化锌加入搅拌机中,在60℃-180℃的温度下充分混合,得到混合物料A;(3)将聚乙烯、聚丙烯、滑石粉、抗氧剂1010 、防老化剂 、白油、粉煤灰、 聚甘油辛癸酸酯等其余原料组分依次投入高速搅拌机中高速搅拌3-5分钟,得到混合物物料B;(4)将A和B混合均匀后得到共混物加入到双螺杆挤出机中,螺杆转速为80-130 rpm,加热机筒温度180-200℃熔融挤出,冷却,造粒即可。
2.根据权利要求1所述的防老化土工格栅的制备方法,其特征在于,包括以下步骤:
(1)按配方比例称取各组分原料;
(2)将称取的HDPE 、LLDPE 、EVA 、2,2'-硫代双[3-(3,5-二叔丁基-4-羟基苯基)丙酸乙酯]、抗氧剂BHT、光稳定剂744加入到高速混料机中,高速混料5-10min,然后再加入碳酸钙高速混合10-20min后将物料放出 ;
(3) 将混合好的物料送入造粒机的加料斗中,开启造粒机,控制造粒机的转速为250-350r/min,控制造粒机料筒前部、中部、后部以及机头的温度分别为:220~225℃、210~215℃、200~205℃、230~235℃,从造粒机中挤出的物料经水冷、切粒、过筛、干燥、,即得到混炼料A;
  (4)将干燥后的混炼料A与改性炭黑母料混合后,再通过挤出机在低于 230℃温度下挤出,熔体通过三辊压光机成型板材,板材经过冲压机使用模具进行冲孔,孔板经过升温到90℃ -110℃后拉伸,即制得防老化土工格栅。
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CN104788778A (zh) * 2015-03-31 2015-07-22 苏州市鼎立包装有限公司 一种改性周转箱专用料及其制备方法
CN106120705A (zh) * 2016-06-23 2016-11-16 安徽徽风新型合成材料有限公司 一种三维塑料排水网及其生产工艺
CN106120703A (zh) * 2016-06-23 2016-11-16 安徽徽风新型合成材料有限公司 一种二维塑料排水网及其生产工艺
CN110483892A (zh) * 2019-08-28 2019-11-22 河北金标建材科技股份有限公司 一种新材料格栅网及其制造方法
CN111171431A (zh) * 2020-02-18 2020-05-19 哈尔滨金蜂巢工程材料开发有限公司 一种耐老化土工格室材料及其制备方法
CN113715292A (zh) * 2021-08-17 2021-11-30 山东大学 一种土工格栅及防止格栅制造中拉断筋条的工艺方法

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Application publication date: 20150114