CN113061309B - 一种高温花纹稳定性pvc膜及其制备方法与应用 - Google Patents

一种高温花纹稳定性pvc膜及其制备方法与应用 Download PDF

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CN113061309B
CN113061309B CN202110248794.3A CN202110248794A CN113061309B CN 113061309 B CN113061309 B CN 113061309B CN 202110248794 A CN202110248794 A CN 202110248794A CN 113061309 B CN113061309 B CN 113061309B
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邱道波
谢巧锋
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Guangzhou Renolit Plastic Co ltd
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Abstract

本发明公开了一种高温花纹稳定性PVC膜及其制备方法与应用,涉及高分子材料技术领域。本发明所述高温花纹稳定性PVC膜包含如下重量份的成分:PVC树脂粉100份、主增塑剂5~35份、环氧类辅助增塑剂1~10份、稳定剂1~9份、加工助剂0.1~5份、填料5~20份和颜料5~15份。以本发明所述配方制备的高温花纹稳定性PVC膜具有良好的高温稳定性,在高温环境下,花纹和光度依然稳定、几乎无变化;并且,本发明通过对各成分的配比进行选择,使得制备出的PVC膜具有良好的抗冲击强度。

Description

一种高温花纹稳定性PVC膜及其制备方法与应用
技术领域
本发明涉及高分子材料技术领域,尤其涉及一种高温花纹稳定性PVC膜及其制备方法与应用。
背景技术
PVC因其加热时可塑,并易于印刷及压印图案,且具有一定的阻燃性,物美价廉,在建材、装饰行业应用越来越广泛,尤其在金属天花板,金属门窗等表面装饰领域的需求不断扩大,不仅使金属造型立体色彩丰富有质感,赏心悦目,而且保护金属材质免受水汽、氧气等杂质的侵袭,提高使用寿命。而当前市售压纹薄膜在与金属板高温覆膜过程中,花纹几乎消失殆尽,薄膜变亮,并且出现拉白和开裂现象,有很强的塑料感,大大降低了产品的档次和实用性。
发明内容
本发明的目的在于克服上述现有技术的不足之处而提供一种高温稳定性好、抗冲击性好的高温花纹稳定性PVC膜及其制备方法与应用。
为实现上述目的,本发明所采取的技术方案为:一种高温花纹稳定性PVC膜,包含如下重量份的成分:PVC树脂粉100份、主增塑剂5~35份、环氧类辅助增塑剂1~10份、稳定剂1~9份、加工助剂0.1~5份、填料5~20份和颜料5~15份;所述PVC树脂粉为k65或k70PVC树脂粉。
本发明通过对PVC树脂粉的类型、各成分及其配比进行选择,使得制备出的PVC膜具有良好的抗冲击性,可与普通添加抗冲剂的PVC膜相媲美。
优选地,所述高温花纹稳定性PVC膜包含如下重量份的成分:PVC树脂粉100份、主增塑剂16~25份、环氧类辅助增塑剂2~6份、稳定剂2~6份、加工助剂1~3份、填料8~15份和颜料10~13份。
优选地,所述主增塑剂包含邻苯二甲酸酯类增塑剂、对苯二甲酸酯类增塑剂、偏苯酸酯类增塑剂中的至少一种;所述环氧类辅助增塑剂包含环氧大豆油、环氧类硬脂酸酯中的至少一种;所述稳定剂包含长链脂肪酸盐、光稳定剂中的至少一种;所述加工助剂为丙烯酸酯类聚合物;所述填料为碳酸钙。
进一步优选地,所述稳定剂包含长链脂肪酸钡盐、锌盐和光稳定剂。本申请发明人通过对稳定剂进行选择,使得制备出的PVC膜在高温下仍然具有良好的稳定性,花纹及膜的外观均无较大改变。
进一步优选地,所述主增塑剂为邻苯二甲酸二异壬酯(DINP)、邻苯二甲酸二异癸酯(DIDP)、偏苯三酸三辛酯(TOTM)中的至少两种。
同时,本发明还公开了一种高温花纹稳定性PVC膜的制备方法,所述制备方法为:将物料依次经混合机混料、密炼机或行星机塑炼,再于双轮开炼机中炼胶、过滤机中过滤,然后经压延轮压延,由引出轮引出至压花轮压花,冷却,分切并收卷,得到所述高温花纹稳定性PVC膜。
优选地,所述混料温度为70~120℃,所述过滤机的温度不高于180℃,所述压延轮的温度为180~215℃,所述压延轮的转速为10~50m/min,所述压花轮的温度为100~150℃,所述冷却温度为10~80℃。
优选地,所述方法制备出的PVC膜的厚度为0.1~0.3mm。
此外,本发明还公开了所述高温花纹稳定性PVC膜在金属板装饰材料领域的应用。
相比于现有技术,本发明的有益效果为:本发明通过优化配方及工艺,引入高模量树脂粉、耐高温增塑剂、钡锌稳定剂;改进压延条件,使得制备出的PVC膜既具有良好的抗冲击性,又具有优良的高温稳定性,在150℃以上加工时也不会出现消纹和光度变化。
附图说明
图1为本发明高温花纹稳定性PVC膜的工艺流程图。
具体实施方式
为更好地说明本发明的目的、技术方案和优点,下面将结合附图和具体实施例对本发明作进一步说明。
实施例1~10
本发明所述高温花纹稳定性PVC膜的实施例,本实施例所述高温花纹稳定性PVC膜的配方如表1所示,制备方法为:将物料加入混合机中混匀,然后加入密炼机或行星机中混炼,再于双辊开炼机中炼胶,在过滤机中过滤,然后经压延轮压延,由引出轮引出至压花轮压花,冷却,分切及收卷,得到所述高温花纹稳定性PVC膜。其中,混料温度为100℃,过滤机的温度为150℃,压延轮的转速为30m/min,冷却轮的温度为30℃。
表1配方表(重量份)
Figure BDA0002963643830000031
Figure BDA0002963643830000041
性能测试
(1)薄膜花纹稳定性:将薄膜样品放入150℃烘箱中保温10min,目测薄膜纹理变化情况,定义无明显变化为1级,有变化但纹理存在为2级,纹理消失为3级,同时用光泽仪测量薄膜加热前后光泽度的变化。
(2)金属板复合后花纹稳定性:将薄膜贴合于涂胶的高温(160~170℃)金属板压合,观察压合后的纹理变化情况,定义无明显变化为1级,有变化但纹理存在为2级,纹理消失为3级。
(3)薄膜强度测试,将复合后的金属板冲压折弯,观察薄膜有无碎裂及破损。
(4)复合金属板薄膜颜色:目测变化。
测试结果如表3所示。
表3性能测试结果
Figure BDA0002963643830000042
Figure BDA0002963643830000051
从上述结果中可知,实施例1、4、5具有最优的综合性能,此外,通过对比实施例1、4~7的测试结果可知,各成分的含量对性能具有至关重要的作用。通过对比实施例1~3的测试结果可知,PVC-k70相比于其他PVC具有更好的抗冲击性能,同时对薄膜的稳定性也具有一定影响。同时,对比实施例1和实施例9~10的测试结果可知,压花温度对产品最后的稳定性也具有较大影响,当压花温度过低时,PVC膜的稳定性较差。
最后所应当说明的是,以上实施例仅用以说明本发明的技术方案而非对本发明保护范围的限制,尽管参照较佳实施例对本发明作了详细说明,本领域的普通技术人员应当理解,可以对本发明的技术方案进行修改或者等同替换,但并不脱离本发明技术方案的实质和范围。

Claims (5)

1.一种高温花纹稳定性PVC膜,其特征在于,包含如下重量份的成分:PVC树脂粉100份、主增塑剂16~25份、环氧类辅助增塑剂2~6份、稳定剂2~6份、加工助剂1~3份、填料8~15份和颜料10~13份;所述PVC树脂粉为k70 PVC树脂粉;
所述主增塑剂为邻苯二甲酸二壬基酯、邻苯二甲酸二癸基酯、偏苯三酸三辛酯中的至少两种;
所述高温花纹稳定性PVC膜的制备方法为:将物料依次经混合机混料、密炼机或行星机塑炼,再于双轮开炼机中炼胶、过滤机中过滤,然后经压延轮压延,由引出轮引出至压花轮压花,冷却,得到所述高温花纹稳定性PVC膜;所述混料温度为70~120℃,所述过滤机的温度不高于180℃,所述压延轮的温度为180~215℃,所述压延轮的转速为10~50m/min,所述压花轮的温度为100~150℃,所述冷却温度为10~80℃。
2.如权利要求1所述的高温花纹稳定性PVC膜,其特征在于,所述环氧类辅助增塑剂包含环氧大豆油、环氧类硬脂酸酯中的至少一种;所述稳定剂包含长链脂肪酸盐、光稳定剂中的至少一种;所述加工助剂为丙烯酸酯类聚合物;所述填料为碳酸钙。
3.如权利要求1所述的高温花纹稳定性PVC膜,其特征在于,所述稳定剂包含长链脂肪酸钡盐、锌盐和光稳定剂。
4.如权利要求1所述的高温花纹稳定性PVC膜,其特征在于,所述方法制备出的PVC膜的厚度为0.1~0.3mm。
5.一种如权利要求1~4任一项所述高温花纹稳定性PVC膜在金属板装饰材料领域的应用。
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