CN108084903B - 一种高净化抗污的耐高低温双面遮光胶带 - Google Patents

一种高净化抗污的耐高低温双面遮光胶带 Download PDF

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CN108084903B
CN108084903B CN201711414198.8A CN201711414198A CN108084903B CN 108084903 B CN108084903 B CN 108084903B CN 201711414198 A CN201711414198 A CN 201711414198A CN 108084903 B CN108084903 B CN 108084903B
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王旭辉
邱仕凯
杨旭
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Anhui Liumai New Material Technology Co ltd
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Abstract

本发明涉及一种高净化抗污的耐高低温双面遮光胶带，由黑磷烯改性遮光PET薄膜、聚醚醚酮改性有机硅压敏胶层、离型层纸组成；其中聚醚醚酮改性有机硅压敏胶层位于黑磷烯改性遮光PET薄膜的两面，离型层纸位于聚醚醚酮改性有机硅压敏胶层的外侧。本发明具有以下优点：首次将具有高紫外光光吸收效率的黑磷烯用于遮光胶带领域，并辅以紫外光吸收剂，本发明能有效的过滤掉紫外光线；本发明具有较高的耐高低温性能；采用聚醚醚酮改性有机硅压敏胶，本发明具有较高的耐老化性能、耐高温性。

Description

一种高净化抗污的耐高低温双面遮光胶带
技术领域
本发明涉及一种遮光胶带，尤其涉及一种高净化抗污的耐高低温双面遮光胶带，属于胶带技术领域。
背景技术
随着科学技术的不断发展，电子产品的不断微型化，在产品的制作过程中，胶带扮演着重要的角色，对胶带的要求也越来越高，普通的胶带已满足不了市场的需求，尤其遮光方面的性能欠佳。
由于液晶显示器具有以下优点：零辐射，低耗能，散热小，纤薄轻巧，精确还原图像，画面稳定不闪烁，屏幕调节方便等，因此现在的绝大多数数码产品的显示结构都采用液晶显示。但是，液晶显示的亮度和对比度都不是很好，因为液晶体本身不发光，需要液晶板背后的发光管提供光源，如果屏蔽的不好会发生露光，从而影响液晶显示的对比度和亮度，而为了防止漏光的发生，同时固定液晶面板端部以及防止尘土进入，通常采用遮光胶带来固定液晶屏。
中国专利CN201511028549.2公开一种含APCF层偏光片用双面遮光胶带及其制备方法，包括重工型具有UV活性的丙烯酸胶黏剂组合物由以下组分及其质量份数组成：低聚物和丙烯酸酯单体共聚形成的共聚物100份，光引发剂4～10份，第一交联剂0.5～0.8份，增韧剂1～2份；还涉及应用有该胶黏剂组合物的含APFC层偏光用双面遮光胶带及其制备方法。该发明中的双面遮光胶带不仅能永久固定液晶显示屏和背光模组，且对含APCF层偏光片48小时内再剥离时200倍显微镜下观察无残胶、无损坏，该胶带制备方法简单，应用本发明中的胶带能显著降低新型偏光片使用过程中的不良率，提高重工作业的效率。
发明内容
为克服现有技术的缺点和不足，本发明旨在提供一种高净化抗污的耐高低温双面遮光胶带。
一种高净化抗污的耐高低温双面遮光胶带，由黑磷烯改性遮光PET薄膜、聚醚醚酮改性有机硅压敏胶层、离型层纸组成；其中聚醚醚酮改性有机硅压敏胶层位于黑磷烯改性遮光PET薄膜的两面，离型层纸位于聚醚醚酮改性有机硅压敏胶层的外侧。
所述的黑磷烯改性遮光PET薄膜，由以下步骤制得：准确称取PET聚酯切片25～35重量份、钛酸酯偶联剂3～6重量份、乙烯基MQ硅树脂10～20重量份、黑磷烯5～10重量份、紫外线吸收剂4～8重量份、有机溶剂10～20重量份加入到反应装置中，搅拌分散均匀，然后加热至100～120℃，回流反应3～5h，然后通过冷却热溶液法结晶，干燥结晶物，即得到改性遮光PET粗产品；在300～400℃、500～700r/min的双螺杆机转速的条件下，将改性遮光PET粗产品投入双螺杆机搅拌熔融2～4h，经挤出机将将产物挤出，得到片材，再同时双向拉伸片材，得黑磷烯改性遮光PET薄膜。
所述的聚醚醚酮改性有机硅压敏胶层，由聚醚醚酮改性有机硅压敏胶组成，所述的聚醚醚酮改性有机硅压敏胶，由以下步骤制得：(1)活性聚醚醚酮的制备：将10重量份聚醚醚酮粉体分批次加入至2～5重量份浓硫酸中，冰水浴中反应0.5～2h，然后移至室温继续反应2～4h，反应结束后，经过滤水洗至中性，然后经乙醇洗涤、真空干燥得活性聚醚醚酮；(2)改性有机硅压敏胶的制备：将活性聚醚醚酮10～15重量份、乙烯基MQ硅树脂2～10重量份、多羟基聚硅氧烷8～15重量份、107硅橡胶10～20重量份、10～20重量份稀释剂、2～5重量份黑色浆加入到反应装置中搅拌分散均匀，然后升温至120℃～135℃，向其中缓慢加入1～4份100ppm铂催化剂，然后保温反应10～30min，然后加入0.02～0.2份阻聚剂，同时冷却至室温，即得到所述的聚醚醚酮改性有机硅压敏胶。
所述的黑磷烯改性遮光PET薄膜的厚度为30～60μm，所述的聚醚醚酮改性有机硅压敏胶层厚度为3～6μm。
所述的钛酸酯偶联剂为异丙基二油酸酰氧基(二辛基磷酸酰氧基)钛酸酯、钛酸四丁酯、异丙基三(二辛基磷酸酰氧基)钛酸酯、双(二辛氧基焦磷酸酯基)乙撑钛酸酯、四异丙基二(二辛基亚磷酸酰氧基)钛酸酯、钛酸四异丙酯、单烷氧基脂肪酸钛酸酯偶联剂中的至少一种。
所述的乙烯基MQ硅树脂的乙烯基百分含量为1.2％～3.0％，M∶Q值为0.5～0.8∶1。
所述的紫外线吸收剂为2，2’-硫代双(4-叔辛基酚氧基)镍、三(1，2，2，6.6-五甲哌啶基)亚磷酸酯、2，4-二羟基二苯甲酮、邻羟基苯甲酸苯酯、2-(2’-羟基-5’-甲基苯基)苯并三氮唑、2-羟基-4-正辛氧基二苯甲酮中的至少一种；所述的有机溶剂为乙二醇二甲醚、乙二醇二丁醚、丁醚、甲苯、二甲苯、丙酮、环己酮中的至少一种。
所述的聚醚醚酮粉体的粒径为100～500目；所述的多羟基聚硅氧烷的粘度为60～300mPa·s，羟基百分含量为3％～8％；所述的107硅橡胶粘度为2000～20000mPa·s；所述的稀释剂为二甲基聚硅氧烷，粘度为10～30mPa·s。
所述铂催化剂是处理后的氯铂酸、乙醇改性的氯铂酸、氯铂酸-烯烃络合物、氯铂酸-烯烃硅氧烷络合物、氯铂酸-二乙烯基四甲基二硅氧烷络合物中的至少一种；所述阻聚剂为1-乙炔基-环己醇、3-甲基-1-戊烯-3-醇、苯并三唑中的至少一种。
相对于现有技术，本发明具有以下优点：(1)以黑磷烯改性遮光PET薄膜为遮光膜，首次将具有高紫外光光吸收效率的黑磷烯用于遮光胶带领域，并辅以紫外光吸收剂，本发明能有效的过滤掉紫外光线；(2)所述的黑磷烯改性遮光PET薄膜、聚醚醚酮改性有机硅压敏胶在制备过程中，均加入适用温度范围在-60℃至+350℃温度环境下使用、耐高低温性能优异的乙烯基MQ硅树脂，本发明具有较高的耐高低温性能；(3)首次公开采用聚醚醚酮改性有机硅压敏胶，本发明具有较高的耐老化性能、耐高温性。
具体实施方式
实施例1
一种高净化抗污的耐高低温双面遮光胶带，由黑磷烯改性遮光PET薄膜A、聚醚醚酮改性有机硅压敏胶层D、离型层纸组成；其中聚醚醚酮改性有机硅压敏胶层D位于黑磷烯改性遮光PET薄膜A的两面，离型层纸位于聚醚醚酮改性有机硅压敏胶层D的外侧。其中，黑磷烯改性遮光PET薄膜A的厚度为30μm，所述的聚醚醚酮改性有机硅压敏胶层厚度为4μm。
本实施例中黑磷烯改性遮光PET薄膜A的制备方法，由以下步骤制得：准确称取PET聚酯切片25重量份、异丙基二油酸酰氧基(二辛基磷酸酰氧基)钛酸酯6重量份、乙烯基MQ硅树脂(乙烯基百分含量为1.3％，M∶Q值为0.7)10重量份、黑磷烯10重量份、2，4-二羟基二苯甲酮4重量份、乙二醇二丁醚20重量份加入到反应装置中，搅拌分散均匀，然后加热至100℃，回流反应5h，然后通过冷却热溶液法结晶，干燥结晶物，即得到改性遮光PET粗产品；在300℃、700r/min的双螺杆机转速的条件下，将改性遮光PET粗产品投入双螺杆机搅拌熔融2h，经挤出机将将产物挤出，得到片材，再同时双向拉伸片材，得黑磷烯改性遮光PET薄膜A。
本实施例中聚醚醚酮改性有机硅压敏胶层D，由聚醚醚酮改性有机硅压敏胶d组成，所述的聚醚醚酮改性有机硅压敏胶d，由以下步骤制得：(1)活性聚醚醚酮的制备：将10重量份聚醚醚酮粉体分批次加入至5重量份浓硫酸中，冰水浴中反应0.5h，然后移至室温继续反应2h，反应结束后，经过滤水洗至中性，然后经乙醇洗涤、真空干燥得活性聚醚醚酮；(2)改性有机硅压敏胶的制备：将活性聚醚醚酮15重量份、乙烯基MQ硅树脂(乙烯基百分含量为1.3％，M∶Q值为0.7)2重量份、多羟基聚硅氧烷(粘度为300mPa·s，羟基百分含量为3％)15重量份、107硅橡胶(粘度为2000mPa·s)20重量份、10重量份二甲基聚硅氧烷(粘度为30mPa·s)、2重量份黑色浆加入到反应装置中搅拌分散均匀，然后升温至135℃，向其中缓慢加入1份100ppm乙醇改性的氯铂酸，然后保温反应10min，然后加入0.2份3-甲基-1-戊烯-3-醇，同时冷却至室温，即得到所述的聚醚醚酮改性有机硅压敏胶d。
实施例2
一种高净化抗污的耐高低温双面遮光胶带，由黑磷烯改性遮光PET薄膜B、聚醚醚酮改性有机硅压敏胶层E、离型层纸组成；其中聚醚醚酮改性有机硅压敏胶层E位于黑磷烯改性遮光PET薄膜B的两面，离型层纸位于聚醚醚酮改性有机硅压敏胶层E的外侧。其中，黑磷烯改性遮光PET薄膜的厚度为50μm，所述的聚醚醚酮改性有机硅压敏胶层厚度为6μm。
本实施例中黑磷烯改性遮光PET薄膜B的制备方法，由以下步骤制得：准确称取PET聚酯切片35重量份、异丙基三(二辛基磷酸酰氧基)钛酸酯3重量份、乙烯基MQ硅树脂20重量份(乙烯基百分含量为1.6％，M∶Q值为0.8)、黑磷烯5重量份、邻羟基苯甲酸苯酯8重量份、甲苯10重量份加入到反应装置中，搅拌分散均匀，然后加热至120℃，回流反应3h，然后通过冷却热溶液法结晶，干燥结晶物，即得到改性遮光PET粗产品；在400℃、500r/min的双螺杆机转速的条件下，将改性遮光PET粗产品投入双螺杆机搅拌熔融2h，经挤出机将将产物挤出，得到片材，再同时双向拉伸片材，得黑磷烯改性遮光PET薄膜B。
本实施例中聚醚醚酮改性有机硅压敏胶层E，由聚醚醚酮改性有机硅压敏胶e组成，所述的聚醚醚酮改性有机硅压敏胶e，由以下步骤制得：(1)活性聚醚醚酮的制备：将10重量份聚醚醚酮粉体分批次加入至2重量份浓硫酸中，冰水浴中反应2h，然后移至室温继续反应4h，反应结束后，经过滤水洗至中性，然后经乙醇洗涤、真空干燥得活性聚醚醚酮；(2)改性有机硅压敏胶的制备：将活性聚醚醚酮10重量份、乙烯基MQ硅树脂10重量份(乙烯基百分含量为1.6％，M∶Q值为0.8)、多羟基聚硅氧烷(粘度为60mPa·s、羟基百分含量为6％)8重量份、107硅橡胶(粘度为20000mPa·s)10重量份、20重量份二甲基聚硅氧烷(粘度为10mPa·s)、5重量份黑色浆加入到反应装置中搅拌分散均匀，然后升温至120℃，向其中缓慢加入2份100ppm氯铂酸-烯烃络合物，然后保温反应30min，然后加入0.02份1-乙炔基-环己醇，同时冷却至室温，即得到所述的聚醚醚酮改性有机硅压敏胶e。
实施例3
一种高净化抗污的耐高低温双面遮光胶带，由黑磷烯改性遮光PET薄膜C、聚醚醚酮改性有机硅压敏胶层F、离型层纸组成；其中聚醚醚酮改性有机硅压敏胶层F位于黑磷烯改性遮光PET薄膜C的两面，离型层纸位于聚醚醚酮改性有机硅压敏胶层F的外侧。其中，黑磷烯改性遮光PET薄膜的厚度为60μm，所述的聚醚醚酮改性有机硅压敏胶层厚度为4.5μm。
本实施例中黑磷烯改性遮光PET薄膜C的制备方法，由以下步骤制得：准确称取PET聚酯切片28重量份、四异丙基二(二辛基亚磷酸酰氧基)钛酸酯5重量份、乙烯基MQ硅树脂(乙烯基百分含量为1.8％，M∶Q值为0.7)14重量份、黑磷烯7重量份、三(1，2，2，6.6-五甲哌啶基)亚磷酸酯5重量份、环己酮13重量份加入到反应装置中，搅拌分散均匀，然后加热至115℃，回流反应4h，然后通过冷却热溶液法结晶，干燥结晶物，即得到改性遮光PET粗产品；在360℃、600r/min的双螺杆机转速的条件下，将改性遮光PET粗产品投入双螺杆机搅拌熔融3h，经挤出机将将产物挤出，得到片材，再同时双向拉伸片材，得黑磷烯改性遮光PET薄膜C。
本实施例中聚醚醚酮改性有机硅压敏胶层F，由聚醚醚酮改性有机硅压敏胶f组成，所述的聚醚醚酮改性有机硅压敏胶f，由以下步骤制得：(1)活性聚醚醚酮的制备：将10重量份聚醚醚酮粉体分批次加入至4重量份浓硫酸中，冰水浴中反应1h，然后移至室温继续反应3h，反应结束后，经过滤水洗至中性，然后经乙醇洗涤、真空干燥得活性聚醚醚酮；(2)改性有机硅压敏胶的制备：将活性聚醚醚酮12重量份、乙烯基MQ硅树脂(乙烯基百分含量为1.8％，M∶Q值为0.7)6重量份、多羟基聚硅氧烷(粘度为120mPa·s，羟基百分含量为4％)10重量份、107硅橡胶(粘度为8000mPa·s)14重量份、14重量份二甲基聚硅氧烷(粘度为20mPa·s)、4重量份黑色浆加入到反应装置中搅拌分散均匀，然后升温至120℃，向其中缓慢加入4份100ppm铂氯铂酸-二乙烯基四甲基二硅氧烷络合物，然后保温反应18min，然后加入0.1份阻聚剂，同时冷却至室温，即得到所述的聚醚醚酮改性有机硅压敏胶f。
性能检测：实施例1、实施例2、实施例3中高净化抗污的耐高低温双面遮光胶带的检测数据如下：
Figure BSA0000156190700000071
Figure BSA0000156190700000081

Claims (1)

1.一种高净化抗污的耐高低温双面遮光胶带，其特征在于，由黑磷烯改性遮光PET薄膜、聚醚醚酮改性有机硅压敏胶层、离型层纸组成；其中聚醚醚酮改性有机硅压敏胶层位于黑磷烯改性遮光PET薄膜的两面，离型层纸位于聚醚醚酮改性有机硅压敏胶层的外侧；
其中，所述的黑磷烯改性遮光PET薄膜，由以下步骤制得：准确称取PET聚酯切片25重量份、异丙基二油酸酰氧基(二辛基磷酸酰氧基)钛酸酯6重量份、乙烯基MQ硅树脂10重量份、黑磷烯10重量份、2，4-二羟基二苯甲酮4重量份、乙二醇二丁醚20重量份加入到反应装置中，搅拌分散均匀，然后加热至100℃，回流反应5h，然后通过冷却热溶液法结晶，干燥结晶物，即得到改性遮光PET粗产品；在300℃、700r/min的双螺杆机转速的条件下，将改性遮光PET粗产品投入双螺杆机搅拌熔融2h，经挤出机将产物挤出，得到片材，再同时双向拉伸片材，得黑磷烯改性遮光PET薄膜；其中，所述乙烯基MQ硅树脂中乙烯基百分含量为1.3％，M∶Q值为0.7；
所述的聚醚醚酮改性有机硅压敏胶层，由聚醚醚酮改性有机硅压敏胶组成，所述的聚醚醚酮改性有机硅压敏胶，由以下步骤制得：(1)活性聚醚醚酮的制备：将10重量份聚醚醚酮粉体分批次加入至5重量份浓硫酸中， 冰水浴中反应0.5h，然后移至室温继续反应2h，反应结束后，经过滤水洗至中性，然后经乙醇洗涤、真空干燥得活性聚醚醚酮；(2)改性有机硅压敏胶的制备：将活性聚醚醚酮15重量份、乙烯基MQ硅树脂2重量份、多羟基聚硅氧烷15重量份、粘度为2000mPa·s的107硅橡胶20重量份、粘度为30mPa·s的二甲基聚硅氧烷10重量份、黑色浆2重量份加入到反应装置中搅拌分散均匀，然后升温至135℃，向其中缓慢加入1份100ppm乙醇改性的氯铂酸，然后保温反应10min，然后加入0.2份3-甲基-1-戊烯-3-醇，同时冷却至室温，即得到所述的聚醚醚酮改性有机硅压敏胶，其中，所述乙烯基MQ硅树脂中乙烯基百分含量为1.3％，M∶Q值为0.7，所述多羟基聚硅氧烷的粘度为300mPa·s，羟基百分含量为3％。
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