CN106957404A - 一种耐黄变tpu薄膜及其制造方法 - Google Patents

一种耐黄变tpu薄膜及其制造方法 Download PDF

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CN106957404A
CN106957404A CN201710148493.7A CN201710148493A CN106957404A CN 106957404 A CN106957404 A CN 106957404A CN 201710148493 A CN201710148493 A CN 201710148493A CN 106957404 A CN106957404 A CN 106957404A
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tpu film
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黄志林
鄢志亮
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ZHEJIANG HUANLONG NEW MATERIAL SCIENCE & TECHNOLOGY Co Ltd
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Abstract

本发明公开了一种耐黄变TPU薄膜,包括以下材质:脂肪族或脂环族二异氰酸酯、紫外线吸收剂、无定形高分子多元醇、线性高分子多元醇、催化剂、抗氧剂、小分子二醇扩链剂、消泡剂、抗黄变剂、含氢硅油。本发明还公开一种耐黄变TPU薄膜的制备方法,包括以下步骤:1)将脂肪族或脂环族二异氰酸酯抽真空;2)将无定形高分子多元醇抽真空;3)将线性高分子多元醇抽真空;4)将催化剂、消泡剂、抗黄变剂、小分子二醇扩链剂、抗氧剂、紫外线吸收剂、含氢硅油进行混合并分散均匀;5)将上述步骤1‑4获得的物质进行混合并分散均匀,并通过挤出机挤出。采用上述技术方案,本发明的耐黄变TPU薄膜及其制造方法,具有耐黄变的特点,透光率较高。

Description

一种耐黄变TPU薄膜及其制造方法
技术领域
本发明涉及一种耐黄变TPU薄膜及其制造方法,属于TPU材料应用技术领域。
背景技术
TPU(Thermoplastic polyurethanes)名称为热塑性聚氨酯弹性体橡胶,主要分为有聚酯型和聚醚型,它硬度范围宽(60HA-85HD)、耐磨、耐油,透明,弹性好,在日用品、体育用品、玩具、装饰材料等领域得到广泛应用,无卤阻燃TPU还可以代替软质PVC以满足越来越多领域的环保要求。所谓弹性体是指玻璃化温度低于室温度,断裂伸长率>50%,外力撤除后复原性比较好的高分子材料。聚氨酯弹性体是弹性体中比较特殊的一大类,聚氨酯弹性体的硬度范围很宽,性能范围很宽,所以聚氨酯弹性体是介于橡胶和塑料的一类高分子材料,可加热塑化,化学结构上没有或很少交联,其分子基本是线性的,然而却存在一定的物理交联,这类聚氨酯称为TPU。目前TPU材料所生产出来的制品抗黄变能力较差,在室外使用一段时间后,颜色就由无色变成了黄色。
发明内容
因此,本发明的目的在于克服现有技术中的缺陷,提供一种耐黄变TPU薄膜及其制造方法。
为了实现上述目的,本发明的一种耐黄变TPU薄膜,按照质量分数比包括以下材质:
脂肪族或脂环族二异氰酸酯 100-200份;
紫外线吸收剂 1-2份;
无定形高分子多元醇 80-130份;
线性高分子多元醇 80-150份;
催化剂 1-2份;
抗氧剂 1-3份;
小分子二醇扩链剂 20-30份;
消泡剂 5-10份;
抗黄变剂 4-8份;
含氢硅油 3-5份。
所述耐黄变TPU薄膜,按照质量分数比包括以下材质:
脂肪族或脂环族二异氰酸酯 180份;
紫外线吸收剂 1.5份;
无定形高分子多元醇 100份;
线性高分子多元醇 120份;
催化剂 1.2份;
抗氧剂 2.5份;
小分子二醇扩链剂 28份;
消泡剂 8份;
抗黄变剂 6份;
含氢硅油 4份。
所述脂肪族或脂环族二异氰酸酯为四甲基苯二亚甲基二异氰酸酯或异佛尔酮二异氰酸酯或二环己基甲烷二异氰酸酯。
所述小分子二醇扩链剂为丙二醇或一缩二乙二醇或新戊二醇。
所述线性高分子多元醇为聚氧化丙烯多元醇或聚己二酸丁二醇酯多元醇或聚己二酸己二醇酯多元醇。
所述催化剂为有机铋或有机锌;所述抗黄变剂为2-(2’-羟基-3’,5’-二枯基苯基)苯并三氮唑。
所述消泡剂为丙烯酸类消泡剂。
所述抗氧剂为抗氧剂TNP。
本发明还公开一种耐黄变TPU薄膜的制备方法,包括以下步骤:
1)将脂肪族或脂环族二异氰酸酯抽真空脱泡30分钟;
2)将无定形高分子多元醇加热至90-110℃后抽真空脱水1-2小时;
3)将线性高分子多元醇加热至90-110℃后抽真空脱水1-2小时;
4)将催化剂、消泡剂、抗黄变剂、小分子二醇扩链剂、抗氧剂、紫外线吸收剂、含氢硅油进行混合并分散均匀,升温至90-110℃后抽真空脱水1-2小时;
5)将上述步骤1-4获得的物质进行混合并分散均匀,并通过挤出机挤出。
采用上述技术方案,本发明的耐黄变TPU薄膜及其制造方法,一方面TPU薄膜具有耐黄变的特点,在长时间使用中不易变黄,保持稳定的透明形态,另一方面TPU薄膜具有高透明的特点,透光率较高。本发明的耐黄变TPU薄膜,产品在户外使用5年不变色;耐低温性能可达-45℃;以使用在鞋子上为例,鞋缝/鞋面粘结强度高;耐水解优异;耐磨性较普通TPU磨耗降低50%;无论是在阳光暴晒、阴雨缠绵或冰雪寒冬的日子,鞋子能够永保本色和最初状态,不开裂经久耐用。
具体实施方式
以下通过具体实施方式对本发明作进一步的详细说明。
实施例一:
本实施例提供一种耐黄变TPU薄膜,按照质量分数比包括以下材质:
脂肪族或脂环族二异氰酸酯 150份;
紫外线吸收剂 1份;
无定形高分子多元醇 120份;
线性高分子多元醇 130份;
催化剂 2份;
抗氧剂 13份;
小分子二醇扩链剂 20份;
消泡剂 8份;
抗黄变剂 4份;
含氢硅油 5份。
作为优选,所述脂肪族或脂环族二异氰酸酯为四甲基苯二亚甲基二异氰酸酯或异佛尔酮二异氰酸酯或二环己基甲烷二异氰酸酯。
作为优选,所述小分子二醇扩链剂为丙二醇或一缩二乙二醇或新戊二醇。
作为优选,所述线性高分子多元醇为聚氧化丙烯多元醇或聚己二酸丁二醇酯多元醇或聚己二酸己二醇酯多元醇。
作为优选,所述催化剂为有机铋或有机锌;所述抗黄变剂为2-(2’-羟基-3’,5’-二枯基苯基)苯并三氮唑。
作为优选,所述消泡剂为丙烯酸类消泡剂。
作为优选,所述抗氧剂为抗氧剂TNP。
实施例二:
本实施例提供一种耐黄变TPU薄膜,按照质量分数比包括以下材质:
脂肪族或脂环族二异氰酸酯 200份;
紫外线吸收剂 2份;
无定形高分子多元醇 130份;
线性高分子多元醇 150份;
催化剂 2份;
抗氧剂 3份;
小分子二醇扩链剂 30份;
消泡剂 10份;
抗黄变剂 8份;
含氢硅油 5份。
实施例三:
本实施例提供一种耐黄变TPU薄膜,按照质量分数比包括以下材质:
脂肪族或脂环族二异氰酸酯 100份;
紫外线吸收剂 1份;
无定形高分子多元醇 80份;
线性高分子多元醇 80份;
催化剂 1份;
抗氧剂 1份;
小分子二醇扩链剂 20份;
消泡剂 5份;
抗黄变剂 4份;
含氢硅油 3份。
实施例四:
本实施例提供一种耐黄变TPU薄膜,按照质量分数比包括以下材质:
脂肪族或脂环族二异氰酸酯 180份;
紫外线吸收剂 1.5份;
无定形高分子多元醇 100份;
线性高分子多元醇 120份;
催化剂 1.2份;
抗氧剂 2.5份;
小分子二醇扩链剂 28份;
消泡剂 8份;
抗黄变剂 6份;
含氢硅油 4份。
本发明还公开一种耐黄变TPU薄膜的制备方法,包括以下步骤:
1)将脂肪族或脂环族二异氰酸酯抽真空脱泡30分钟;
2)将无定形高分子多元醇加热至90-110℃后抽真空脱水1-2小时;
3)将线性高分子多元醇加热至90-110℃后抽真空脱水1-2小时;
4)将催化剂、消泡剂、抗黄变剂、小分子二醇扩链剂、抗氧剂、紫外线吸收剂、含氢硅油进行混合并分散均匀,升温至90-110℃后抽真空脱水1-2小时;
5)将上述步骤1-4获得的物质进行混合并分散均匀,并通过挤出机挤出。
采用上述技术方案,本发明的耐黄变TPU薄膜及其制造方法,一方面TPU薄膜具有耐黄变的特点,在长时间使用中不易变黄,保持稳定的透明形态,另一方面TPU薄膜具有高透明的特点,透光率较高。本发明的耐黄变TPU薄膜,产品在户外使用5年不变色;耐低温性能可达-45℃;以使用在鞋子上为例,鞋缝/鞋面粘结强度高;耐水解优异;耐磨性较普通TPU磨耗降低50%;无论是在阳光暴晒、阴雨缠绵或冰雪寒冬的日子,鞋子能够永保本色和最初状态,不开裂经久耐用。
显然,上述实施例仅是为清楚地说明所作的举例,而并非对实施方式的限定。对于所属领域的普通技术人员来说,在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本发明创造的保护范围之中。

Claims (9)

1.一种耐黄变TPU薄膜,其特征在于:按照质量分数比包括以下材质:
脂肪族或脂环族二异氰酸酯 100-200份;
紫外线吸收剂 1-2份;
无定形高分子多元醇 80-130份;
线性高分子多元醇 80-150份;
催化剂 1-2份;
抗氧剂 1-3份;
小分子二醇扩链剂 20-30份;
消泡剂 5-10份;
抗黄变剂 4-8份;
含氢硅油 3-5份。
2.如权利要求1所述的耐黄变TPU薄膜,其特征在于:所述耐黄变TPU薄膜,按照质量分数比包括以下材质:
脂肪族或脂环族二异氰酸酯 180份;
紫外线吸收剂 1.5份;
无定形高分子多元醇 100份;
线性高分子多元醇 120份;
催化剂 1.2份;
抗氧剂 2.5份;
小分子二醇扩链剂 28份;
消泡剂 8份;
抗黄变剂 6份;
含氢硅油 4份。
3.如权利要求1所述的耐黄变TPU薄膜,其特征在于:所述脂肪族或脂环族二异氰酸酯为四甲基苯二亚甲基二异氰酸酯或异佛尔酮二异氰酸酯或二环己基甲烷二异氰酸酯。
4.如权利要求1所述的耐黄变TPU薄膜,其特征在于:所述小分子二醇扩链剂为丙二醇或一缩二乙二醇或新戊二醇。
5.如权利要求1所述的耐黄变TPU薄膜,其特征在于:所述线性高分子多元醇为聚氧化丙烯多元醇或聚己二酸丁二醇酯多元醇或聚己二酸己二醇酯多元醇。
6.如权利要求1所述的耐黄变TPU薄膜,其特征在于:所述催化剂为有机铋或有机锌;所述抗黄变剂为2-(2’-羟基-3’,5’-二枯基苯基)苯并三氮唑。
7.如权利要求1所述的耐黄变TPU薄膜,其特征在于:所述消泡剂为丙烯酸类消泡剂。
8.如权利要求1所述的耐黄变TPU薄膜,其特征在于:所述抗氧剂为抗氧剂TNP。
9.一种耐黄变TPU薄膜的制备方法,其特征在于:包括以下步骤:
1)将脂肪族或脂环族二异氰酸酯抽真空脱泡30分钟;
2)将无定形高分子多元醇加热至90-110℃后抽真空脱水1-2小时;
3)将线性高分子多元醇加热至90-110℃后抽真空脱水1-2小时;
4)将催化剂、消泡剂、抗黄变剂、小分子二醇扩链剂、抗氧剂、紫外线吸收剂、含氢硅油进行混合并分散均匀,升温至90-110℃后抽真空脱水1-2小时;
5)将上述步骤1-4获得的物质进行混合并分散均匀,并通过挤出机挤出。
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