CN105419305A - 汽车用保护膜及其制备方法 - Google Patents

汽车用保护膜及其制备方法 Download PDF

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CN105419305A
CN105419305A CN201511011129.3A CN201511011129A CN105419305A CN 105419305 A CN105419305 A CN 105419305A CN 201511011129 A CN201511011129 A CN 201511011129A CN 105419305 A CN105419305 A CN 105419305A
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protective membrane
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肖烈民
黄爱文
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Zhejiang Suo Fan Adhesive Article Co Ltd
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Abstract

本发明涉及一种保护膜及其制备方法，具体的说涉及一种汽车用保护膜及其制备方法。所述汽车用保护膜由PVC材料和改性TPU材料按质量比1:2-3加工而成，所述改性TPU材料由下列重量份的原料加工而成：聚氨酯30-60份，聚酰胺基有机硅热塑性弹性体5-10份，纳米滑石粉和/或膨润土4-6份，增塑剂DEHP？3-5份，本发明的汽车用保护膜产品均一度好、不易褪色、不易翘边，贴合性好，使用寿命长，加工成本较低。

Description

汽车用保护膜及其制备方法
技术领域
本发明涉及一种保护膜及其制备方法，具体的说涉及一种汽车用保护膜及其制备方法。
背景技术
汽车用保护膜是一种高性能膜，轻薄通透,具有超强韧性，能有效的防止刮蹭，小石子、沙粒的击打，还能完美附着在车漆表面，使车漆与空气隔绝。有效的防酸雨，防氧化、抵抗划伤，持久保护车的漆面。维护便捷，减少对车身打蜡费用，不会对人体及自然产生任何毒副作用和污染漆面，保护膜无色透明，贴在车漆上面，能有效的增亮车漆，而且能持久保持光。
目前市场上商品化的汽车用保护膜品种较多，具有良好的防刮蹭及击打功能，但仍具有如下不足：现有技术的汽车用保护膜易褪色及翘边，严重时会出现裂痕，影响使用寿命。
发明内容
本发明的目的在于解决现有技术的不足，提供一种产品均一度好、不易褪色、不易翘边，贴合性好，使用寿命长的汽车用保护膜。
本发明的另一个目的在于提供一种汽车用保护膜的制备方法。
本发明解决其技术问题所采用的技术方案是：
一种汽车用保护膜，所述汽车用保护膜由PVC材料和改性TPU材料按质量比1:2-3加工而成，所述改性TPU材料由下列重量份的原料加工而成：
聚氨酯30-60份
聚酰胺基有机硅热塑性弹性体5-10份，
纳米滑石粉和/或膨润土4-6份，
增塑剂DEHP3-5份，
所述改性TPU材料制备方法如下：
（1）将配方量的增塑剂DEHP和纳米滑石粉和/或膨润土混合均匀备用；
（2）将配方量的聚氨酯与聚酰胺基有机硅热塑性弹性体与步骤（1）的混合料进一步混合均匀，然后通过挤出机挤出得到改性TPU材料；
所述汽车用保护膜的制备方法如下：将PVC材料和改性TPU材料按质量比混合,然后通过流延机挤出成膜，流延机挤出温度为180-200摄氏度。
为了提高汽车用保护膜的均一性和贴合性，本申请的发明做了大量试验摸索，选用PVC材料和改性TPU材料，其中改性TPU材料具有良好的分散性，尤其是纳米沸石粉和/或膨润土的加入，一方面使得聚氨酯和聚酰胺基有机硅热塑性弹性体能极好的融合，改性TPU材料内部结构更紧凑，大大提高了其机械性能，另外一方面，可以显著改善PVC材料和改性TPU材料的相容性，流延机挤出过程中各原料相容性好，获得的保护膜的质量均一，使用时贴合性好，不会翘边。
优选的，所述汽车用保护膜由PVC材料和改性TPU材料按质量比1:2加工而成，所述改性TPU材料由下列重量份的原料加工而成：
聚氨酯50份
聚酰胺基有机硅热塑性弹性体8份
纳米滑石粉2份
纳米膨润土3份
增塑剂DEHP4份。
优选的，所述膨润土选用有机膨润土。有机膨润土具有良好的触变性、高温及化学稳定性，除了前述的功能外，还可以显著改善保护膜的抗老化性能，延长其使用寿命。
一种汽车用保护膜的制备方法，所述方法步骤如下：将PVC材料和改性TPU材料按质量比混合,然后通过流延机挤出成膜，流延机挤出温度为180-200摄氏度。
本发明的有益效果是：本发明的汽车用保护膜产品均一度好、不易褪色、不易翘边，贴合性好，使用寿命长，加工成本较低。
具体实施方式
下面通过具体实施例，对本发明的技术方案作进一步的具体说明。
本发明使用的原料除聚酰胺基有机硅热塑性弹性体外均系市购常规原料，其中聚酰胺基有机硅热塑性弹性体的制备方法在公告号为CN103642048A的中国发明专利中已有公开，本发明选用实施例1制备得到的聚酰胺基有机硅热塑性弹性体。
实施例1：
一种汽车用保护膜，所述汽车用保护膜由PVC材料和改性TPU材料按质量比1:2加工而成，所述改性TPU材料由下列重量份的原料加工而成：
聚氨酯30份
聚酰胺基有机硅热塑性弹性体5份，
纳米滑石粉4份，
增塑剂DEHP3份，
所述改性TPU材料制备方法如下：
（1）将配方量的增塑剂DEHP和纳米滑石粉混合均匀备用；
（2）将配方量的聚氨酯与聚酰胺基有机硅热塑性弹性体与步骤（1）的混合料进一步混合均匀，然后通过挤出机挤出得到改性TPU材料，挤出温度为175-180℃；
所述汽车用保护膜的制备方法如下：将PVC材料和改性TPU材料按质量比混合，然后通过流延机挤出成膜，流延机挤出温度为180-200摄氏度。
实施例2：
一种汽车用保护膜，所述汽车用保护膜由PVC材料和改性TPU材料按质量比1:2加工而成，所述改性TPU材料由下列重量份的原料加工而成：
聚氨酯50份
聚酰胺基有机硅热塑性弹性体8份，
纳米滑石粉2份，
纳米有机膨润土3份，
增塑剂DEHP4份，
所述改性TPU材料制备方法如下：
（1）将配方量的增塑剂DEHP和纳米滑石粉和膨润土混合均匀备用；
（2）将配方量的聚氨酯与聚酰胺基有机硅热塑性弹性体与步骤（1）的混合料进一步混合均匀，然后通过挤出机挤出得到改性TPU材料，挤出温度为175-180℃；
所述汽车用保护膜的制备方法如下：将PVC材料和改性TPU材料按质量比混合，然后通过流延机挤出成膜，流延机挤出温度为180-200摄氏度。
实施例3：
一种汽车用保护膜，所述汽车用保护膜由PVC材料和改性TPU材料按质量比1:2加工而成，所述改性TPU材料由下列重量份的原料加工而成：
聚氨酯60份
聚酰胺基有机硅热塑性弹性体10份，
纳米有机膨润土6份，
增塑剂DEHP5份，
所述改性TPU材料制备方法如下：
（1）将配方量的增塑剂DEHP和纳米膨润土混合均匀备用；
（2）将配方量的聚氨酯与聚酰胺基有机硅热塑性弹性体与步骤（1）的混合料进一步混合均匀，然后通过挤出机挤出得到改性TPU材料，挤出温度为175-180℃；
所述汽车用保护膜的制备方法如下：将PVC材料和改性TPU材料按质量比混合,然后通过流延机挤出成膜，流延机挤出温度为180-200摄氏度。
实施例1-3制备得到的汽车用保护膜产品均一度好、使用时贴合方便，贴合性好，不易翘边，使用寿命长，不易褪色，能比现有技术中的汽车用保护膜的使用寿命提高25-30%。
以上所述的实施例只是本发明的一种较佳的方案，并非对本发明作任何形式上的限制，在不超出权利要求所记载的技术方案的前提下还有其它的变体及改型。

Claims (4)

1.一种汽车用保护膜，其特征在于：所述汽车用保护膜由PVC材料和改性TPU材料按质量比1:2-3加工而成，所述改性TPU材料由下列重量份的原料加工而成：
聚氨酯30-60份
聚酰胺基有机硅热塑性弹性体5-10份，
纳米滑石粉和/或膨润土4-6份，
增塑剂DEHP3-5份，
所述改性TPU材料制备方法如下：
（1）将配方量的增塑剂DEHP和纳米滑石粉和/或膨润土混合均匀备用；
（2）将配方量的聚氨酯与聚酰胺基有机硅热塑性弹性体与步骤（1）的混合料进一步混合均匀，然后通过挤出机挤出得到改性TPU材料；
所述汽车用保护膜的制备方法如下：将PVC材料和改性TPU材料按质量比混合,然后通过流延机挤出成膜，流延机挤出温度为180-200摄氏度。
2.根据权利要求1所述的一种汽车用保护膜，其特征在于：所述汽车用保护膜由PVC材料和改性TPU材料按质量比1:2加工而成，所述改性TPU材料由下列重量份的原料加工而成：
聚氨酯50份
聚酰胺基有机硅热塑性弹性体8份
纳米滑石粉2份
纳米膨润土3份
增塑剂DEHP4份。
3.根据权利要求1或2所述的一种汽车用保护膜，其特征在于：所述膨润土选用有机膨润土。
4.一种权利要求1或2任意一项所述的汽车用保护膜的制备方法，其特征在于：所述方法步骤如下：将PVC材料和改性TPU材料按质量比混合,然后通过流延机挤出成膜，流延机挤出温度为180-200摄氏度。
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108410386A (zh) * 2018-03-27 2018-08-17 浙江东进塑胶有限公司 金属光感耐候式车衣隐形保护膜
CN108517186A (zh) * 2018-03-27 2018-09-11 浙江东进塑胶有限公司 金属光感耐候式车衣隐形保护膜及其基材层制作工艺
CN108641220A (zh) * 2018-03-27 2018-10-12 浙江东进塑胶有限公司 车衣隐形保护膜的pvc基材层及其制作工艺
CN113736190A (zh) * 2021-08-23 2021-12-03 江苏图研新材料科技有限公司 一种铸造级pvc改色薄膜及其制备方法
CN117924855A (zh) * 2024-03-25 2024-04-26 广州领音航复合材料有限公司 一种用于汽车的透气型遮黑膜及其制备方法

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