CN105754220A - 一种抗拉伸打包带的制备方法 - Google Patents
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Abstract
本发明公开一种抗拉伸打包带的制备方法,包括如下步骤:(1)、称取纳米凹凸棒土、玻璃纤维、聚酯纤维及偶联剂,混合均匀,于10~20体积倍的水中浸泡30~60min,过滤干燥,备用;(2)、将步骤(1)的混合物与聚丙烯、聚对苯二甲酸丁二酯、丙烯酸树脂、高密度聚乙烯、环氧树脂、过氧化二异丙苯、乙酸乙酯混合均匀,然后升温至100~120℃,保温30~60min,结束反应;(3)、将步骤(2)的反应液过滤,固体静置8~12h后,送入造粒机中挤出造粒,即得抗拉伸打包带。本发明制备得到打包带具有优异的抗拉伸性能,且制作成本更加低廉,应用前景更加广泛。
Description
技术领域
本发明属于包装材料领域,具体公开了一种抗拉伸打包带的制备方法。
背景技术
打包带,又名捆扎带,常用于瓦楞纸箱的封箱捆扎。其主要分为PP打包带(又称聚丙烯打包带)与PET打包带(又称塑钢打包带),分别使用聚丙烯与PET聚酯为原料生产,分别适用于轻重不同物体的打包需要。
PP打包带以聚丙烯为主要原料,材质为聚丙烯拉丝级树脂,其制作工艺简单,价格便宜,但其抗拉伸性能一般,而PET打包带的材质是聚酯,具有极强的抗拉性,接近于同规格的钢带,但制作成本高,应用受限。
发明内容
发明目的:本发明的目的在于提供一种抗拉伸打包带的制备方法,制得的打包带抗拉伸性能优异,成本低廉。
本发明的技术方案:
一种抗拉伸打包带的制备方法,包括如下步骤:
(1)、按重量份计,称取纳米凹凸棒土3~5份、玻璃纤维5~8份、聚酯纤维3~6份及偶联剂5~10份,混合均匀,于10~20体积倍的水中浸泡30~60min,过滤干燥,备用;
(2)、将步骤(1)的混合物与聚丙烯12~26份、聚对苯二甲酸丁二酯12~18份、丙烯酸树脂12~18份、高密度聚乙烯3~5份、环氧树脂3~5份、过氧化二异丙苯4~7份、乙酸乙酯50~80份混合均匀,然后升温至100~120℃,保温30~60min,结束反应;
(3)、将步骤(2)的反应液过滤,固体静置8~12h后,送入造粒机中挤出造粒,即得抗拉伸打包带。
步骤(1)中,所述纳米凹凸棒土粒径为5~25nm。
步骤(1)中,所述偶联剂为偶联剂KH550。
步骤(2)中,升温至105℃,保温45min。
步骤(3)中,挤出工艺条件为:螺杆转速为30~60转/分钟,各螺杆的温区温度为260~310℃,挤出时间为1~5min。
有益效果
与现有技术相比,本发明制备得到打包带具有优异的抗拉伸性能,且制作成本更加低廉,应用前景更加广泛。
具体实施方式
实施例1
一种抗拉伸打包带的制备方法,包括如下步骤:
(1)、按重量份计,称取纳米凹凸棒土3份、玻璃纤维5份、聚酯纤维3份及偶联剂KH5505份,混合均匀,于10体积倍的水中浸泡30min,过滤干燥,备用;
(2)、将步骤(1)的混合物与聚丙烯12份、聚对苯二甲酸丁二酯12份、丙烯酸树脂12份、高密度聚乙烯3份、环氧树脂3份、过氧化二异丙苯4份、乙酸乙酯50份混合均匀,然后升温至100℃,保温30min,结束反应;
(3)、将步骤(2)的反应液过滤,固体静置8h后,送入造粒机中挤出造粒,挤出工艺条件为:螺杆转速为30转/分钟,各螺杆的温区温度为260℃,挤出时间为1min,即得抗拉伸打包带。
实施例2
一种抗拉伸打包带的制备方法,包括如下步骤:
(1)、按重量份计,称取纳米凹凸棒土4份、玻璃纤维6份、聚酯纤维3份及偶联剂KH5506份,混合均匀,于13体积倍的水中浸泡40min,过滤干燥,备用;
(2)、将步骤(1)的混合物与聚丙烯15份、聚对苯二甲酸丁二酯14份、丙烯酸树脂14份、高密度聚乙烯4份、环氧树脂4份、过氧化二异丙苯5份、乙酸乙酯60份混合均匀,然后升温至105℃,保温40min,结束反应;
(3)、将步骤(2)的反应液过滤,固体静置9h后,送入造粒机中挤出造粒,挤出工艺条件为:螺杆转速为40转/分钟,各螺杆的温区温度为280℃,挤出时间为2min,即得抗拉伸打包带。
实施例3
一种抗拉伸打包带的制备方法,包括如下步骤:
(1)、按重量份计,称取纳米凹凸棒土4份、玻璃纤维7份、聚酯纤维4份及偶联剂KH5508份,混合均匀,于15体积倍的水中浸泡45min,过滤干燥,备用;
(2)、将步骤(1)的混合物与聚丙烯19份、聚对苯二甲酸丁二酯15份、丙烯酸树脂15份、高密度聚乙烯4份、环氧树脂4份、过氧化二异丙苯6份、乙酸乙酯65份混合均匀,然后升温至105℃,保温45min,结束反应;
(3)、将步骤(2)的反应液过滤,固体静置10h后,送入造粒机中挤出造粒,挤出工艺条件为:螺杆转速为45转/分钟,各螺杆的温区温度为290℃,挤出时间为3min,即得抗拉伸打包带。
实施例4
一种抗拉伸打包带的制备方法,包括如下步骤:
(1)、按重量份计,称取纳米凹凸棒土5份、玻璃纤维7份、聚酯纤维5份及偶联剂KH5509份,混合均匀,于17体积倍的水中浸泡50min,过滤干燥,备用;
(2)、将步骤(1)的混合物与聚丙烯23份、聚对苯二甲酸丁二酯16份、丙烯酸树脂16份、高密度聚乙烯5份、环氧树脂4份、过氧化二异丙苯6份、乙酸乙酯70份混合均匀,然后升温至115℃,保温50min,结束反应;
(3)、将步骤(2)的反应液过滤,固体静置11h后,送入造粒机中挤出造粒,挤出工艺条件为:螺杆转速为50转/分钟,各螺杆的温区温度为300℃,挤出时间为4min,即得抗拉伸打包带。
实施例5
一种抗拉伸打包带的制备方法,包括如下步骤:
(1)、按重量份计,称取纳米凹凸棒土5份、玻璃纤维8份、聚酯纤维6份及偶联剂KH55010份,混合均匀,于20体积倍的水中浸泡60min,过滤干燥,备用;
(2)、将步骤(1)的混合物与聚丙烯26份、聚对苯二甲酸丁二酯18份、丙烯酸树脂18份、高密度聚乙烯5份、环氧树脂5份、过氧化二异丙苯7份、乙酸乙酯80份混合均匀,然后升温至120℃,保温60min,结束反应;
(3)、将步骤(2)的反应液过滤,固体静置12h后,送入造粒机中挤出造粒,挤出工艺条件为:螺杆转速为60转/分钟,各螺杆的温区温度为310℃,挤出时间为5min,即得抗拉伸打包带。
对实施例1~5制备得到的打包带及市售PP打包带(对比例1)、市售PET打包带(对比例2)进行性能测试,结果如表1所示。
表1性能试验结果
项目 | 实施例1 | 实施例2 | 实施例3 | 实施例4 | 实施例5 | 对比例1 | 对比例2 |
拉伸强度(MPa) | 269 | 270 | 269 | 271 | 268 | 168 | 270 |
断裂伸长率(%) | 45 | 46 | 48 | 46 | 48 | 79 | 23 |
冲击强度(KJ·m2) | 15.8 | 16.2 | 16.4 | 15.7 | 15.5 | 10.5 | 16.3 |
抗变形温度(℃) | 268 | 275 | 287 | 285 | 262 | 205 | 260 |
从上表中可以看出,本发明制得的打包带的抗拉伸性能明显优于市售PP打包带,与市售PET打包带的抗拉伸性能相当,但在制作成本上,本发明明显优于市售PET打包带,因此应用前景更加广泛。
Claims (5)
1.一种抗拉伸打包带的制备方法,其特征在于,包括如下步骤:
(1)、按重量份计,称取纳米凹凸棒土3~5份、玻璃纤维5~8份、聚酯纤维3~6份及偶联剂5~10份,混合均匀,于10~20体积倍的水中浸泡30~60min,过滤干燥,备用;
(2)、将步骤(1)的混合物与聚丙烯12~26份、聚对苯二甲酸丁二酯12~18份、丙烯酸树脂12~18份、高密度聚乙烯3~5份、环氧树脂3~5份、过氧化二异丙苯4~7份、乙酸乙酯50~80份混合均匀,然后升温至100~120℃,保温30~60min,结束反应;
(3)、将步骤(2)的反应液过滤,固体静置8~12h后,送入造粒机中挤出造粒,即得抗拉伸打包带。
2.根据权利要求1所述的一种抗拉伸打包带的制备方法,其特征在于,步骤(1)中,所述纳米凹凸棒土粒径为5~25nm。
3.根据权利要求1所述的一种抗拉伸打包带的制备方法,其特征在于,步骤(1)中,所述偶联剂为偶联剂KH550。
4.根据权利要求1所述的一种抗拉伸打包带的制备方法,其特征在于,步骤(2)中,升温至105℃,保温45min。
5.根据权利要求1所述的一种抗拉伸打包带的制备方法,其特征在于,步骤(3)中,挤出工艺条件为:螺杆转速为30~60转/分钟,各螺杆的温区温度为260~310℃,挤出时间为1~5min。
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