CN112538223A - Pvc热收缩蓝光膜配方及其制备方法 - Google Patents

Pvc热收缩蓝光膜配方及其制备方法 Download PDF

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CN112538223A
CN112538223A CN202011007810.1A CN202011007810A CN112538223A CN 112538223 A CN112538223 A CN 112538223A CN 202011007810 A CN202011007810 A CN 202011007810A CN 112538223 A CN112538223 A CN 112538223A
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周荣
徐正奎
孙兵
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Yangzhou Shengqiang Film Material Co ltd
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Abstract

PVC热收缩蓝光膜配方及其制备方法。涉及包装材料技术领域。具有稳定性好，易于生产加工的特点。包括PVC树脂、增塑剂、稳定剂、碳酸钙、内润滑剂、外润滑剂、增强剂、助剂、染色剂。所述染色剂为群青。所述增塑剂为邻苯二甲酸二乙酯，所述稳定剂为有机锡化合物和甘油酯按质量份1：0.2的复配，所述内润滑剂为硬脂酸，所述外润滑剂为聚乙烯蜡，所述增强剂为MBS，所述助剂为ACR。

Description

PVC热收缩蓝光膜配方及其制备方法
技术领域
本发明涉及包装材料技术领域，具体涉及一种PVC热收缩蓝光膜配方及其制备方法。
背景技术
PVC热收缩膜的收缩率、收缩力适中，透明度好，力学性能优异，性价比高，广泛应用于日化产品、电子电器、塑胶五金、玻璃陶瓷等商品的包装。其不仅对包装物具有很好的保护作用，而且还使商品外形更加鲜明美观，提升商品包装档次，是目前较理想的薄膜类包装材料。
但是，目前的PVC热收缩膜都是本色的，即呈透明状，印刷厂根据需要将各色油墨组成图案印刷在PVC热收缩膜上，随着市场的发展，对图案的要求越来越高，需要底色用蓝色油墨全覆盖，而这样的上色效果差，油墨会脱落，因此，设计一种不需要使用有色油墨进行涂覆的、能使本色呈蓝色的PVC热收缩蓝光膜配方及其制备方法成为了本领域技术人员亟待解决的技术问题。
发明内容
为了克服现有技术的不足，本发明提供了一种稳定性好，易于生产加工的 PVC热收缩蓝光膜配方及其制备方法。
本发明采用如下技术方案实现：PVC热收缩蓝光膜配方，按如下质量份原料构成：PVC树脂150份，增塑剂5-8份，稳定剂2-4份，碳酸钙30份，内润滑剂2-3份，外润滑剂0.2-0.4份，增强剂1.5-2.2份，助剂1.3-2.1份，染色剂 10-20份。
所述染色剂为群青。
所述增塑剂为邻苯二甲酸二乙酯，所述稳定剂为有机锡化合物和甘油酯按质量份1：0.2的复配，所述内润滑剂为硬脂酸，所述外润滑剂为聚乙烯蜡，所述增强剂为MBS，所述助剂为ACR。
PVC热收缩蓝光膜的制备方法，包括如下步骤：
S1、将PVC树脂放入高速捏合机中搅拌，升温至80℃；
S2、在S1的高速捏合机中加入增塑剂及稳定剂，并升温至88℃；
S3、在S2的高速捏合机中加入碳酸钙、内润滑剂及染色剂，并升温到110℃；
S4、在S3的高速捏合机中加入助剂、增强剂，并升温到120℃；
S5、在S4的高速捏合机中加入外润滑剂，并升温到135℃；
S6、将S5的高速捏合机放入到冷锅中进行冷却搅拌，降温至60℃后装桶、并放置24h；
S7、将S6所得物料加入到锥形双螺杆挤出机、并挤出，再经吹膜机头成型、二次加热、二次吹胀、冷却定型、卷曲和分切后得到成品。
相比现有技术，本发明通过在PVC热收缩膜的配方中加入染色剂，即群青，并通过对原料的混合工艺进行改进，使制得的PVC热收缩膜本色呈均匀的蓝色，色彩耐老化，不会脱落，且稳定性好，易于生产加工。
具体实施方式
下面，对本发明做进一步描述，需要说明的是，在不相冲突的前提下，以下描述的各实施例之间或各技术特征之间可以任意组合形成新的实施例。
实施例1
PVC热收缩蓝光膜配方，按如下质量份原料构成：PVC树脂150份，增塑剂5份，稳定剂2份，碳酸钙30份，内润滑剂2份，外润滑剂0.2份，增强剂 1.5份，助剂1.3份，染色剂10份。
PVC热收缩蓝光膜的制备方法，包括如下步骤：
S1、将PVC树脂放入高速捏合机中搅拌，升温至80℃；
S2、在S1的高速捏合机中加入增塑剂及稳定剂，并升温至88℃；
S3、在S2的高速捏合机中加入碳酸钙、内润滑剂及染色剂，并升温到110℃；
S4、在S3的高速捏合机中加入助剂、增强剂，并升温到120℃；
S5、在S4的高速捏合机中加入外润滑剂，并升温到135℃；
S6、将S5的高速捏合机放入到冷锅中进行冷却搅拌，降温至60℃后装桶、并放置24h；
S7、将S6所得物料加入到锥形双螺杆挤出机、并挤出，再经吹膜机头成型、二次加热、二次吹胀、冷却定型、卷曲和分切后得到成品。
实施例2
PVC热收缩蓝光膜配方，按如下质量份原料构成：PVC树脂150份，增塑剂8份，稳定剂4份，碳酸钙30份，内润滑剂3份，外润滑剂0.4份，增强剂 2.2份，助剂2.1份，染色剂20份。
PVC热收缩蓝光膜的制备方法，包括如下步骤：
S1、将PVC树脂放入高速捏合机中搅拌，升温至80℃；
S2、在S1的高速捏合机中加入增塑剂及稳定剂，并升温至88℃；
S3、在S2的高速捏合机中加入碳酸钙、内润滑剂及染色剂，并升温到110℃；
S4、在S3的高速捏合机中加入助剂、增强剂，并升温到120℃；
S5、在S4的高速捏合机中加入外润滑剂，并升温到135℃；
S6、将S5的高速捏合机放入到冷锅中进行冷却搅拌，降温至60℃后装桶、并放置24h；
S7、将S6所得物料加入到锥形双螺杆挤出机、并挤出，再经吹膜机头成型、二次加热、二次吹胀、冷却定型、卷曲和分切后得到成品。
实施例3
PVC热收缩蓝光膜配方，按如下质量份原料构成：PVC树脂150份，增塑剂6.9份，稳定剂2.7份，碳酸钙30份，内润滑剂2.0份，外润滑剂0.3份，增强剂1.8份，助剂1.8份，染色剂15份。
PVC热收缩蓝光膜的制备方法，包括如下步骤：
S1、将PVC树脂放入高速捏合机中搅拌，升温至80℃；
S2、在S1的高速捏合机中加入增塑剂及稳定剂，并升温至88℃；
S3、在S2的高速捏合机中加入碳酸钙、内润滑剂及染色剂，并升温到110℃；
S4、在S3的高速捏合机中加入助剂、增强剂，并升温到120℃；
S5、在S4的高速捏合机中加入外润滑剂，并升温到135℃；
S6、将S5的高速捏合机放入到冷锅中进行冷却搅拌，降温至60℃后装桶、并放置24h；
S7、将S6所得物料加入到锥形双螺杆挤出机、并挤出，再经吹膜机头成型、二次加热、二次吹胀、冷却定型、卷曲和分切后得到成品。
上述实施例中，所述染色剂为群青，所述增塑剂为邻苯二甲酸二乙酯，所述稳定剂为有机锡化合物和甘油酯按质量份1：0.2的复配，所述内润滑剂为硬脂酸，所述外润滑剂为聚乙烯蜡，所述增强剂为MBS，所述助剂为ACR。
上述实施方式仅为本发明的优选实施方式，不能以此来限定本发明保护的范围，本领域的技术人员在本发明的基础上所做的任何非实质性的变化及替换均属于本发明所要求保护的范围。

Claims (4)

1.PVC热收缩蓝光膜配方，其特征在于：按如下质量份原料构成：PVC树脂150份，增塑剂5-8份，稳定剂2-4份，碳酸钙30份，内润滑剂2-3份，外润滑剂0.2-0.4份，增强剂1.5-2.2份，助剂1.3-2.1份，染色剂10-20份。
2.根据权利要求1所述的PVC热收缩蓝光膜配方，其特征在于：所述染色剂为群青。
3.根据权利要求1所述的PVC热收缩蓝光膜配方，其特征在于：所述增塑剂为邻苯二甲酸二乙酯，所述稳定剂为有机锡化合物和甘油酯按质量份1：0.2的复配，所述内润滑剂为硬脂酸，所述外润滑剂为聚乙烯蜡，所述增强剂为MBS，所述助剂为ACR。
4.如权利要求1-3任一所述的PVC热收缩蓝光膜的制备方法，其特征在于，包括如下步骤：
S1、将PVC树脂放入高速捏合机中搅拌，升温至80℃；
S2、在S1的高速捏合机中加入增塑剂及稳定剂，并升温至88℃；
S3、在S2的高速捏合机中加入碳酸钙、内润滑剂及染色剂，并升温到110℃；
S4、在S3的高速捏合机中加入助剂、增强剂，并升温到120℃；
S5、在S4的高速捏合机中加入外润滑剂，并升温到135℃；
S6、将S5的高速捏合机放入到冷锅中进行冷却搅拌，降温至60℃后装桶、并放置24h；
S7、将S6所得物料加入到锥形双螺杆挤出机、并挤出，再经吹膜机头成型、二次加热、二次吹胀、冷却定型、卷曲和分切后得到成品。
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