CN113103708A - 一种高分子防潮复合型材料及其制备方法 - Google Patents
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Abstract
本发明涉及新材料技术领域,尤其为一种高分子防潮复合型材料及其制备方法,包括上PET层、铝箔层、下PET层和PEN层,所述铝箔层与上PET层和下PET层之间通过粘合剂连接,所述上PET层和PEN层通过粘合剂连接,通过PEN的各种性能却大大超过PET,特别是PEN的气体阻隔性、耐热性显著优于PET,对水的阻隔性高3.5倍,PEN层进行外层防潮防护,能够有效的提高整体的防潮性能,通过粘合剂固化快,具有较高的初固粘接力度、具有优异的剥离强度,特别适合用于铝箔等刚性材料的粘接复合;耐温性能高,对多层加强型的结构厚层薄膜具有较高的粘接强度,具有较佳的附着力和热封性能,通过该方法各材料之间的复合效果好。
Description
技术领域
本发明涉及新材料技术领域,尤其涉及一种高分子防潮复合型材料及其制备方法。
背景技术
现有技术及产品可以达到防高温、防潮湿、防腐蚀、抗低温,但对于使用在经常搬运或移动大的场地或环境中,其使用及存放的时间还是相对较短,相对容易造成搬运时破损或破裂(经检测拉断力MD=110N/15mm;TD=117N/15mm),相对于防潮性(经检测水蒸气透过量=1)而言仍感觉未尽理想。
现有技术中,通常是三层的结构包括PET+铝箔+PE,但PET的阻隔性较差,因此提出一种高分子防潮复合型材料及其制备方法对上述问题进行改善。
发明内容
本发明的目的在于提供一种高分子防潮复合型材料及其制备方法,以解决上述背景技术中提出的问题。
为实现上述目的,本发明提供如下技术方案:
一种高分子防潮复合型材料及其制备方法,包括上PET层、铝箔层、下PET层和PEN层,所述铝箔层与上PET层和下PET层之间通过粘合剂连接,所述上PET层和PEN层通过粘合剂连接。
作为本发明优选的方案,所述PEN层:将PEN与PEI共聚或共混得到改性PEN。
作为本发明优选的方案,所述上PET层:在PET中通过溶液、熔体、原位聚合方法混入≤5%wt的无机纳米粒子来提高PET对汽液体的阻隔性。
作为本发明优选的方案,所述下PET层:表面直接用高阻隔性树脂的乳液或溶液直接涂覆在PET层上,干燥固化后就得到高阻隔性的PET层。
作为本发明优选的方案,所述粘合剂选用主剂TS9015A、固化剂TS9015B和醋酸乙酯按照比例3:4:2充分混合制成的复合胶水。
一种高分子防潮复合型材料,制备方法包括以下步骤:
S1,PEN层:将PEN与PEI共聚或共混得到改性PEN;上PET层:在PET中通过溶液、熔体、原位聚合等方法混入≤5%wt的无机纳米粒子来提高PET对汽液体的阻隔性;下PET层:表面直接用高阻隔性树脂的乳液或溶液直接涂覆在PET层上,干燥固化后就得到高阻隔性的PET层;粘合剂选用主剂TS9015A、固化剂TS9015B和醋酸乙酯充分混合制成的复合胶水,进行准备;
S2,将主剂+固化剂+醋酸乙酯三组份按照比例3:4:2充分混合,搅拌均匀,醋酸乙酯的量依据生产所需的粘合剂浓度高低来调配,如要求浓度低,醋酸乙酯的量加多,如要求浓度高,醋酸乙酯的量减少;
S3,将胶水涂布到被粘材料的其中一面,进入复合烘道,烘道温度50℃~60℃、60℃~70℃、70℃~80℃;
S4,将已涂胶的材料与另一面材料进行复合辊复合,复合辊温度一般控制在50℃~80℃,易受温度影响的薄膜控制在50℃~60℃,复合辊压力:在不损坏薄膜的前提下,应尽量提高复合压力;
S5,进入温室固化:温度控制在40℃~50℃,时间:24~48小时以上,成型,由于双组份复合膜专用胶的固化反应速率随气温而变化,且卷膜的内外层要达到设定的熟化温度所需时间亦有所不同,因此在冬天气温低的情况下以及对于较大的卷膜和含AL的多层结构复合膜,应适当延长其熟化时间,避免因胶粘剂两组份固化交联不完全而造成复合膜热封卷边、离层、不平整等品质异常现象的发生。
与现有技术相比,本发明的有益效果是:
本发明中,通过PEN的各种性能却大大超过PET,特别是PEN的气体阻隔性、耐热性显著优于PET,对水的阻隔性高3.5倍,PEN层进行外层防潮防护,能够有效的提高整体的防潮性能,通过粘合剂固化快,具有较高的初固粘接力度、具有优异的剥离强度,特别适合用于铝箔等刚性材料的粘接复合;耐温性能高,对多层加强型的结构厚层薄膜具有较高的粘接强度,具有较佳的附着力和热封性能,通过该方法各材料之间的复合效果好。
具体实施方式
下面将结合本发明实施例,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例,基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
本发明提供一种技术方案:
一种高分子防潮复合型材料及其制备方法,包括上PET层、铝箔层、下PET层和PEN层,所述铝箔层与上PET层和下PET层之间通过粘合剂连接,所述上PET层和PEN层通过粘合剂连接。
PEN层:将PEN与PEI共聚或共混得到改性PEN。
上PET层:在PET中通过溶液、熔体、原位聚合方法混入≤5%wt的无机纳米粒子来提高PET对汽液体的阻隔性。
下PET层:表面直接用高阻隔性树脂的乳液或溶液直接涂覆在PET层上,干燥固化后就得到高阻隔性的PET层。
粘合剂选用主剂TS9015A、固化剂TS9015B和醋酸乙酯按照比例3:4:2充分混合制成的复合胶水。
一种高分子防潮复合型材料,制备方法包括以下步骤:
S1,PEN层:将PEN与PEI共聚或共混得到改性PEN;上PET层:在PET中通过溶液、熔体、原位聚合等方法混入≤5%wt的无机纳米粒子来提高PET对汽液体的阻隔性;下PET层:表面直接用高阻隔性树脂的乳液或溶液直接涂覆在PET层上,干燥固化后就得到高阻隔性的PET层;粘合剂选用主剂TS9015A、固化剂TS9015B和醋酸乙酯充分混合制成的复合胶水,进行准备;
S2,将主剂+固化剂+醋酸乙酯三组份按照比例3:4:2充分混合,搅拌均匀,醋酸乙酯的量依据生产所需的粘合剂浓度高低来调配,如要求浓度低,醋酸乙酯的量加多,如要求浓度高,醋酸乙酯的量减少;
S3,将胶水涂布到被粘材料的其中一面,进入复合烘道,烘道温度50℃~60℃、60℃~70℃、70℃~80℃;
S4,将已涂胶的材料与另一面材料进行复合辊复合,复合辊温度一般控制在50℃~80℃,易受温度影响的薄膜控制在50℃~60℃,复合辊压力:在不损坏薄膜的前提下,应尽量提高复合压力;
S5,进入温室固化:温度控制在40℃~50℃,时间:24~48小时以上,成型,由于双组份复合膜专用胶的固化反应速率随气温而变化,且卷膜的内外层要达到设定的熟化温度所需时间亦有所不同,因此在冬天气温低的情况下以及对于较大的卷膜和含AL的多层结构复合膜,应适当延长其熟化时间,避免因胶粘剂两组份固化交联不完全而造成复合膜热封卷边、离层、不平整等品质异常现象的发生。
实施例:PEN层:将PEN与PEI共聚或共混得到改性PEN;上PET层:在PET中通过溶液、熔体、原位聚合等方法混入≤5%wt的无机纳米粒子来提高PET对汽液体的阻隔性;下PET层:表面直接用高阻隔性树脂的乳液或溶液直接涂覆在PET层上,干燥固化后就得到高阻隔性的PET层;粘合剂选用主剂TS9015A、固化剂TS9015B和醋酸乙酯充分混合制成的复合胶水,进行准备;将主剂+固化剂+醋酸乙酯三组份按照比例3:4:2充分混合,搅拌均匀,醋酸乙酯的量依据生产所需粘合剂的浓度高低来调配,如要求浓度低,醋酸乙酯的量加多,如要求浓度高,醋酸乙酯的量减少;将胶水涂布到被粘材料的其中一面,进入复合烘道,烘道温度50℃~60℃、60℃~70℃、70℃~80℃;将已涂胶的材料与另一面材料进行复合辊复合,复合辊温度一般控制在50℃~80℃,易受温度影响的薄膜控制在50℃~60℃,复合辊压力:在不损坏薄膜的前提下,应尽量提高复合压力;进入温室固化:温度控制在40℃~50℃,时间:24~48小时以上,成型,由于双组份复合膜专用胶的固化反应速率随气温而变化,且卷膜的内外层要达到设定的熟化温度所需时间亦有所不同,因此在冬天气温低的情况下以及对于较大的卷膜和含AL的多层结构复合膜,应适当延长其熟化时间,避免因胶粘剂两组份固化交联不完全而造成复合膜热封卷边、离层、不平整等品质异常现象的发生,通过PEN的各种性能却大大超过PET,特别是PEN的气体阻隔性、耐热性显著优于PET,对水的阻隔性高3.5倍,PEN层进行外层防潮防护,能够有效的提高整体的防潮性能,通过粘合剂固化快,具有较高的初固粘接力度、具有优异的剥离强度,特别适合用于铝箔等刚性材料的粘接复合;耐温性能高,对多层加强型的结构厚层薄膜具有较高的粘接强度,具有较佳的附着力和热封性能,通过该方法各材料之间的复合效果好,PEN的性质见下表:
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
Claims (6)
1.一种高分子防潮复合型材料,包括上PET层、铝箔层、下PET层和PEN层,其特征在于,所述铝箔层与上PET层和下PET层之间通过粘合剂连接,所述上PET层和PEN层通过粘合剂连接。
2.根据权利要求1所述的一种高分子防潮复合型材料,其特征在于,所述PEN层:将PEN与PEI共聚或共混得到改性PEN。
3.根据权利要求1所述的一种高分子防潮复合型材料,其特征在于,所述上PET层:在PET中通过溶液、熔体、原位聚合方法混入≤5%wt的无机纳米粒子来提高PET对汽液体的阻隔性。
4.根据权利要求1所述的一种高分子防潮复合型材料,其特征在于,所述下PET层:表面直接用高阻隔性树脂的乳液或溶液直接涂覆在PET层上,干燥固化后就得到高阻隔性的PET层。
5.根据权利要求1所述的一种高分子防潮复合型材料,其特征在于,所述粘合剂选用主剂TS9015A、固化剂TS9015B和醋酸乙酯按照比例3:4:2充分混合制成的复合胶水。
6.根据权利要求1-5中任一项所述的一种高分子防潮复合型材料,其特征在于,制备方法包括以下步骤:
S1,PEN层:将PEN与PEI共聚或共混得到改性PEN;上PET层:在PET中通过溶液、熔体、原位聚合等方法混入≤5%wt的无机纳米粒子来提高PET对汽液体的阻隔性;下PET层:表面直接用高阻隔性树脂的乳液或溶液直接涂覆在PET层上,干燥固化后就得到高阻隔性的PET层;粘合剂选用主剂TS9015A、固化剂TS9015B和醋酸乙酯充分混合制成的复合胶水,进行准备;
S2,将主剂+固化剂+醋酸乙酯三组份按照比例3:4:2充分混合,搅拌均匀,醋酸乙酯的量依据生产所需的粘合剂浓度高低来调配,如要求浓度低,醋酸乙酯的量加多,如要求浓度高,醋酸乙酯的量减少;
S3,将胶水涂布到被粘材料的其中一面,进入复合烘道,烘道温度50℃~60℃、60℃~70℃、70℃~80℃;
S4,将已涂胶的材料与另一面材料进行复合辊复合,复合辊温度一般控制在50℃~80℃,易受温度影响的薄膜控制在50℃~60℃,复合辊压力:在不损坏薄膜的前提下,应尽量提高复合压力;
S5,进入温室固化:温度控制在40℃~50℃,时间:24~48小时以上,成型,由于双组份复合膜专用胶的固化反应速率随气温而变化,且卷膜的内外层要达到设定的熟化温度所需时间亦有所不同,因此在冬天气温低的情况下以及对于较大的卷膜和含AL的多层结构复合膜,应适当延长其熟化时间,避免因胶粘剂两组份固化交联不完全而造成复合膜热封卷边、离层、不平整等品质异常现象的发生。
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