CN115195166A - 一种易撕型聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺 - Google Patents
一种易撕型聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺 Download PDFInfo
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Abstract
本发明公开了一种易撕型聚氯乙烯‑聚偏二氯乙烯‑聚乙烯复合工艺,包括聚乙烯膜、聚氯乙烯膜和聚偏二氯乙烯膜,所述聚乙烯膜、聚氯乙烯膜和聚偏二氯乙烯膜一侧均设有粘贴层,所述聚乙烯膜、聚氯乙烯膜和聚偏二氯乙烯膜远离粘贴层一侧均通过胶黏剂粘合有剥离层,所述聚氯乙烯膜位于聚乙烯膜、聚偏二氯乙烯膜之间,所述聚偏二氯乙烯膜远离聚氯乙烯膜一侧通过粘贴层与转接膜连接。通过粘接层和剥离层的设计,使聚乙烯膜、聚氯乙烯膜和聚偏二氯乙烯膜之间可以连接,同时聚乙烯膜、聚氯乙烯膜和聚偏二氯乙烯膜位置可以根据使用需求进行相应的调整,使聚乙烯膜、聚氯乙烯膜和聚偏二氯乙烯膜能够灵活配合使用。
Description
技术领域
本发明涉及聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺技术领域,特别涉及一种易撕型聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺。
背景技术
聚氯乙烯,简称PVC,聚氯乙烯(PVC)是合成材料,具有多种的优势,是工程塑料的理想材料。化学稳定性好,耐酸、碱和有些化学药品的侵蚀。耐潮湿、耐老化、难燃。聚氯乙烯薄膜,具有柔韧性好、安装方便、使用寿命长等优点。
聚乙烯,简称PE,容易着色,化学稳定性好,耐寒,耐辐射,电绝缘性好。它适合做食品和药物的包装材料,制作食具、医疗器械,还可做电子工业的绝缘材料等。聚乙烯薄膜的透气性及传导热量的速度比聚氯乙烯薄膜要好和快。
聚偏二氟乙烯是一种纯热塑性含氟聚合物,由偏二氟乙烯经聚合而成的高分子化合物。聚偏二氟乙烯薄膜,光学透明,光泽度高,具有与金属化薄膜相媲美的出色氧气和水分阻隔性能。
目前聚氯乙烯薄膜、聚乙烯薄膜和聚偏二氟乙烯薄膜均是单独进行使用,无法灵活配合使用。
为此,我们提出一种易撕型聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺。
发明内容
本发明的主要目的在于提供一种易撕型聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺,通过粘接层和剥离层的设计,使聚乙烯膜、聚氯乙烯膜和聚偏二氯乙烯膜之间可以连接,同时聚乙烯膜、聚氯乙烯膜和聚偏二氯乙烯膜位置可以根据使用需求进行相应的调整,使聚乙烯膜、聚氯乙烯膜和聚偏二氯乙烯膜能够灵活配合使用,可以有效解决背景技术中的问题。
为实现上述目的,本发明采取的技术方案为:
一种易撕型聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺,包括聚乙烯膜、聚氯乙烯膜和聚偏二氯乙烯膜,所述聚乙烯膜、聚氯乙烯膜和聚偏二氯乙烯膜一侧均设有粘贴层,所述聚乙烯膜、聚氯乙烯膜和聚偏二氯乙烯膜远离粘贴层一侧均通过胶黏剂粘合有剥离层,所述聚氯乙烯膜位于聚乙烯膜、聚偏二氯乙烯膜之间,所述聚偏二氯乙烯膜远离聚氯乙烯膜一侧通过粘贴层与转接膜连接;
所述聚乙烯膜、聚氯乙烯膜、聚偏二氯乙烯膜和转接膜从上往下依次排列。
进一步地,所述聚乙烯膜由以下重量份的原料制成:纳米无机粒子10~50份、环氧大豆油10~40份、低密度聚乙烯80~100份、高密度聚乙烯80~100份、加工助剂1~5份、聚丁烯8~20份、紫外线吸收剂1~5份。
进一步地,所述聚乙烯膜的制备方法包括以下步骤;
S1、将纳米无机粒子与环氧大豆油混合,得混合物;
S2、将低密度聚乙烯、高密度聚乙烯、加工助剂、聚丁烯、紫外线吸收剂加到混合物中,得混料;
S3、将混料装入PE压延生产线,制成聚乙烯膜;
S4、然后将S3中制成的聚乙烯膜一侧涂覆胶水形成粘贴层,聚乙烯膜远离粘接层一侧通过胶黏剂粘合剥离层。
进一步地,所述聚氯乙烯膜由以下重量份的原料制成:聚氯乙烯树脂80~100份、乙烯-醋酸乙烯共聚物10~30份、增塑剂5~20份、填料3~10份、抗氧化剂2~4份、1~5份聚乙烯蜡、1~3份稳定剂。
进一步地,所述聚氯乙烯膜的制备方法包括以下步骤;
S1、按比例称取各原料组分放入混合设备中充分混合;
S2、将S1中混合后的原料放入相应的生产设备中进行混炼塑化,经流延、压延进行成膜,通过牵引、冷却、收卷工序得聚氯乙烯膜;
S3、将S2中的聚氯乙烯膜一侧涂覆胶水形成粘贴层,聚氯乙烯膜远离粘接层一侧通过胶黏剂粘合剥离层。
进一步地,所述聚偏二氯乙烯膜由以下重量份的原料制成:聚偏二氯乙烯10~30份、聚乙烯醇缩丁醛1~10份、致孔剂1~20份、添加剂1~5份、溶剂50~80份。
进一步地,所述聚偏二氯乙烯膜的制备方法包括以下步骤;
S1、溶解搅拌脱泡:将聚偏二氯乙烯、聚乙烯醇缩丁醛溶解在溶剂中,加入添加剂、致孔剂搅拌至均匀状态,然后脱泡得到铸膜液;
S2、将S1中将铸膜液固化成膜;
S3、将S2中的膜在水中浸泡一段时间,然后将膜干燥得到聚乙烯醇缩丁醛共混增强的聚偏二氯乙烯膜;
S4、将S3中的聚偏二氯乙烯膜一侧涂覆胶水形成粘贴层,聚偏二氯乙烯膜远离粘接层一侧通过胶黏剂粘合剥离层。
与现有技术相比,本发明具有如下有益效果:通过粘接层和剥离层的设计,使聚乙烯膜、聚氯乙烯膜和聚偏二氯乙烯膜之间可以连接,同时聚乙烯膜、聚氯乙烯膜和聚偏二氯乙烯膜位置可以根据使用需求进行相应的调整,使聚乙烯膜、聚氯乙烯膜和聚偏二氯乙烯膜能够灵活配合使用,通过转接膜的设计,便于对聚乙烯膜、聚氯乙烯膜和聚偏二氯乙烯膜收料放置;
环氧大豆油具有较高的耐析出特性,加入的纳米无机粒子比表面积大,具有较高的活性,纳米无机粒子经过较均匀的分散,进而能够提高聚乙烯膜的质量,加入紫外线吸收剂使聚乙烯膜能够吸收紫外线;加入稳定剂,更好保证了聚氯乙烯膜有较好透光率,乙烯-醋酸乙烯共聚物,具有良好的化学稳定性、耐老化、耐臭氧性,进而能够保证聚氯乙烯膜的化学稳定性,同时能够提高聚氯乙烯膜的保温性;聚乙烯醇缩丁醛与聚偏二氯乙烯共混增强了聚偏二氯乙烯膜的拉伸断裂伸长率,提升了聚偏二氯乙烯膜的机械性能;制备步骤简单,成本低,可实现工业化生产。
附图说明
图1为本发明一种易撕型聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺的结构示意图。
图2为本发明一种易撕型聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺的图1中A处放大图。
图中:1、聚乙烯膜;2、聚氯乙烯膜;3、聚偏二氯乙烯膜;4、转接膜;5、剥离层;6、粘贴层。
具体实施方式
为使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解,下面结合具体实施方式,进一步阐述本发明。
实施例一
如图1、图2所示,一种易撕型聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺,包括聚乙烯膜1、聚氯乙烯膜2和聚偏二氯乙烯膜3,所述聚乙烯膜1、聚氯乙烯膜2和聚偏二氯乙烯膜3一侧均设有粘贴层6,所述聚乙烯膜1、聚氯乙烯膜2和聚偏二氯乙烯膜3远离粘贴层6一侧均通过胶黏剂粘合有剥离层5,所述聚氯乙烯膜2位于聚乙烯膜1、聚偏二氯乙烯膜3之间,所述聚偏二氯乙烯膜3远离聚氯乙烯膜2一侧通过粘贴层6与转接膜4连接;所述聚乙烯膜1、聚氯乙烯膜2、聚偏二氯乙烯膜3和转接膜4从上往下依次排列。
所述聚乙烯膜1由以下重量份的原料制成:纳米无机粒子10份、环氧大豆油10份、低密度聚乙烯80份、高密度聚乙烯80份、加工助剂1份、聚丁烯8份、紫外线吸收剂1份;所述聚乙烯膜1的制备方法包括以下步骤;S1、将纳米无机粒子与环氧大豆油混合,得混合物;S2、将低密度聚乙烯、高密度聚乙烯、加工助剂、聚丁烯、紫外线吸收剂加到混合物中,得混料;S3、将混料装入PE压延生产线,制成聚乙烯膜1;S4、然后将S3中制成的聚乙烯膜1一侧涂覆胶水形成粘贴层6,聚乙烯膜1远离粘接层6一侧通过胶黏剂粘合剥离层5;
所述聚氯乙烯膜2由以下重量份的原料制成:聚氯乙烯树脂80份、乙烯-醋酸乙烯共聚物10份、增塑剂5份、填料3份、抗氧化剂2份、1份聚乙烯蜡、1份稳定剂;所述聚氯乙烯膜2的制备方法包括以下步骤;S1、按比例称取各原料组分放入混合设备中充分混合;S2、将S1中混合后的原料放入相应的生产设备中进行混炼塑化,经流延、压延进行成膜,通过牵引、冷却、收卷工序得聚氯乙烯膜2;S3、将S2中的聚氯乙烯膜2一侧涂覆胶水形成粘贴层6,聚氯乙烯膜2远离粘接层6一侧通过胶黏剂粘合剥离层5;
所述聚偏二氯乙烯膜3由以下重量份的原料制成:聚偏二氯乙烯10份、聚乙烯醇缩丁醛1份、致孔剂1份、添加剂1份、溶剂50份;所述聚偏二氯乙烯膜3的制备方法包括以下步骤;S1、溶解搅拌脱泡:将聚偏二氯乙烯、聚乙烯醇缩丁醛溶解在溶剂中,加入添加剂、致孔剂搅拌至均匀状态,然后脱泡得到铸膜液;S2、将S1中将铸膜液固化成膜;S3、将S2中的膜在水中浸泡一段时间,然后将膜干燥得到聚乙烯醇缩丁醛共混增强的聚偏二氯乙烯膜3;S4、将S3中的聚偏二氯乙烯膜3一侧涂覆胶水形成粘贴层6,聚偏二氯乙烯膜3远离粘接层6一侧通过胶黏剂粘合剥离层5。
实施例二
如图1、图2所示,一种易撕型聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺,包括聚乙烯膜1、聚氯乙烯膜2和聚偏二氯乙烯膜3,所述聚乙烯膜1、聚氯乙烯膜2和聚偏二氯乙烯膜3一侧均设有粘贴层6,所述聚乙烯膜1、聚氯乙烯膜2和聚偏二氯乙烯膜3远离粘贴层6一侧均通过胶黏剂粘合有剥离层5,所述聚氯乙烯膜2位于聚乙烯膜1、聚偏二氯乙烯膜3之间,所述聚偏二氯乙烯膜3远离聚氯乙烯膜2一侧通过粘贴层6与转接膜4连接;所述聚乙烯膜1、聚氯乙烯膜2、聚偏二氯乙烯膜3和转接膜4从上往下依次排列。
所述聚乙烯膜1由以下重量份的原料制成:纳米无机粒子20份、环氧大豆油20份、低密度聚乙烯90份、高密度聚乙烯90份、加工助剂2份、聚丁烯9份、紫外线吸收剂2份;所述聚乙烯膜1的制备方法包括以下步骤;S1、将纳米无机粒子与环氧大豆油混合,得混合物;S2、将低密度聚乙烯、高密度聚乙烯、加工助剂、聚丁烯、紫外线吸收剂加到混合物中,得混料;S3、将混料装入PE压延生产线,制成聚乙烯膜1;S4、然后将S3中制成的聚乙烯膜1一侧涂覆胶水形成粘贴层6,聚乙烯膜1远离粘接层6一侧通过胶黏剂粘合剥离层5;
所述聚氯乙烯膜2由以下重量份的原料制成:聚氯乙烯树脂90份、乙烯-醋酸乙烯共聚物20份、增塑剂6份、填料4份、抗氧化剂3份、2份聚乙烯蜡、2份稳定剂;所述聚氯乙烯膜2的制备方法包括以下步骤;S1、按比例称取各原料组分放入混合设备中充分混合;S2、将S1中混合后的原料放入相应的生产设备中进行混炼塑化,经流延、压延进行成膜,通过牵引、冷却、收卷工序得聚氯乙烯膜2;S3、将S2中的聚氯乙烯膜2一侧涂覆胶水形成粘贴层6,聚氯乙烯膜2远离粘接层6一侧通过胶黏剂粘合剥离层5;
所述聚偏二氯乙烯膜3由以下重量份的原料制成:聚偏二氯乙烯20份、聚乙烯醇缩丁醛2份、致孔剂2份、添加剂2份、溶剂60份;所述聚偏二氯乙烯膜3的制备方法包括以下步骤;S1、溶解搅拌脱泡:将聚偏二氯乙烯、聚乙烯醇缩丁醛溶解在溶剂中,加入添加剂、致孔剂搅拌至均匀状态,然后脱泡得到铸膜液;S2、将S1中将铸膜液固化成膜;S3、将S2中的膜在水中浸泡一段时间,然后将膜干燥得到聚乙烯醇缩丁醛共混增强的聚偏二氯乙烯膜3;S4、将S3中的聚偏二氯乙烯膜3一侧涂覆胶水形成粘贴层6,聚偏二氯乙烯膜3远离粘接层6一侧通过胶黏剂粘合剥离层5。
实施例三
如图1、图2所示,一种易撕型聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺,包括聚乙烯膜1、聚氯乙烯膜2和聚偏二氯乙烯膜3,所述聚乙烯膜1、聚氯乙烯膜2和聚偏二氯乙烯膜3一侧均设有粘贴层6,所述聚乙烯膜1、聚氯乙烯膜2和聚偏二氯乙烯膜3远离粘贴层6一侧均通过胶黏剂粘合有剥离层5,所述聚氯乙烯膜2位于聚乙烯膜1、聚偏二氯乙烯膜3之间,所述聚偏二氯乙烯膜3远离聚氯乙烯膜2一侧通过粘贴层6与转接膜4连接;所述聚乙烯膜1、聚氯乙烯膜2、聚偏二氯乙烯膜3和转接膜4从上往下依次排列。
所述聚乙烯膜1由以下重量份的原料制成:纳米无机粒子30份、环氧大豆油30份、低密度聚乙烯100份、高密度聚乙烯100份、加工助剂3份、聚丁烯10份、紫外线吸收剂3份;所述聚乙烯膜1的制备方法包括以下步骤;S1、将纳米无机粒子与环氧大豆油混合,得混合物;S2、将低密度聚乙烯、高密度聚乙烯、加工助剂、聚丁烯、紫外线吸收剂加到混合物中,得混料;S3、将混料装入PE压延生产线,制成聚乙烯膜1;S4、然后将S3中制成的聚乙烯膜1一侧涂覆胶水形成粘贴层6,聚乙烯膜1远离粘接层6一侧通过胶黏剂粘合剥离层5;
所述聚氯乙烯膜2由以下重量份的原料制成:聚氯乙烯树脂100份、乙烯-醋酸乙烯共聚物30份、增塑剂7份、填料5份、抗氧化剂4份、3份聚乙烯蜡、3份稳定剂;所述聚氯乙烯膜2的制备方法包括以下步骤;S1、按比例称取各原料组分放入混合设备中充分混合;S2、将S1中混合后的原料放入相应的生产设备中进行混炼塑化,经流延、压延进行成膜,通过牵引、冷却、收卷工序得聚氯乙烯膜2;S3、将S2中的聚氯乙烯膜2一侧涂覆胶水形成粘贴层6,聚氯乙烯膜2远离粘接层6一侧通过胶黏剂粘合剥离层5;
所述聚偏二氯乙烯膜3由以下重量份的原料制成:聚偏二氯乙烯30份、聚乙烯醇缩丁醛3份、致孔剂3份、添加剂3份、溶剂70份;所述聚偏二氯乙烯膜3的制备方法包括以下步骤;S1、溶解搅拌脱泡:将聚偏二氯乙烯、聚乙烯醇缩丁醛溶解在溶剂中,加入添加剂、致孔剂搅拌至均匀状态,然后脱泡得到铸膜液;S2、将S1中将铸膜液固化成膜;S3、将S2中的膜在水中浸泡一段时间,然后将膜干燥得到聚乙烯醇缩丁醛共混增强的聚偏二氯乙烯膜3;S4、将S3中的聚偏二氯乙烯膜3一侧涂覆胶水形成粘贴层6,聚偏二氯乙烯膜3远离粘接层6一侧通过胶黏剂粘合剥离层5。
需要说明的是,本发明为一种易撕型聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺,将纳米无机粒子与环氧大豆油混合,得混合物;将低密度聚乙烯、高密度聚乙烯、加工助剂、聚丁烯、紫外线吸收剂加到混合物中,得混料;将混料装入PE压延生产线,制成聚乙烯膜1;然后将制成的聚乙烯膜1一侧涂覆胶水形成粘贴层6,聚乙烯膜1远离粘接层6一侧通过胶黏剂粘合剥离层5;按比例称取聚氯乙烯膜2所需原料组分放入混合设备中充分混合;将混合后的聚氯乙烯膜2原料放入相应的生产设备中进行混炼塑化,经流延、压延进行成膜,通过牵引、冷却、收卷工序得聚氯乙烯膜2;聚氯乙烯膜2一侧涂覆胶水形成粘贴层6,聚氯乙烯膜2远离粘接层6一侧通过胶黏剂粘合剥离层5;将聚偏二氯乙烯、聚乙烯醇缩丁醛溶解在溶剂中,加入添加剂、致孔剂搅拌至均匀状态,然后脱泡得到铸膜液;将铸膜液固化成膜;将膜在水中浸泡一段时间,然后将膜干燥得到聚乙烯醇缩丁醛共混增强的聚偏二氯乙烯膜3;将聚偏二氯乙烯膜3一侧涂覆胶水形成粘贴层6,聚偏二氯乙烯膜3远离粘接层6一侧通过胶黏剂粘合剥离层5;聚氯乙烯膜2位于聚乙烯膜1、聚偏二氯乙烯膜3之间,聚偏二氯乙烯膜3远离聚氯乙烯膜2一侧通过粘贴层6与转接膜4连接;聚乙烯膜1、聚氯乙烯膜2、聚偏二氯乙烯膜3和转接膜4从上往下依次排列。
以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。
Claims (7)
1.一种易撕型聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺,包括聚乙烯膜(1)、聚氯乙烯膜(2)和聚偏二氯乙烯膜(3),其特征在于,所述聚乙烯膜(1)、聚氯乙烯膜(2)和聚偏二氯乙烯膜(3)一侧均设有粘贴层(6),所述聚乙烯膜(1)、聚氯乙烯膜(2)和聚偏二氯乙烯膜(3)远离粘贴层(6)一侧均通过胶黏剂粘合有剥离层(5),所述聚氯乙烯膜(2)位于聚乙烯膜(1)、聚偏二氯乙烯膜(3)之间,所述聚偏二氯乙烯膜(3)远离聚氯乙烯膜(2)一侧通过粘贴层(6)与转接膜(4)连接;
所述聚乙烯膜(1)、聚氯乙烯膜(2)、聚偏二氯乙烯膜(3)和转接膜(4)从上往下依次排列。
2.根据权利要求1所述的一种易撕型聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺,其特征在于:所述聚乙烯膜(1)由以下重量份的原料制成:纳米无机粒子10~50份、环氧大豆油10~40份、低密度聚乙烯80~100份、高密度聚乙烯80~100份、加工助剂1~5份、聚丁烯8~20份、紫外线吸收剂1~5份。
3.根据权利要求2所述的一种易撕型聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺,其特征在于:所述聚乙烯膜(1)的制备方法包括以下步骤;
S1、将纳米无机粒子与环氧大豆油混合,得混合物;
S2、将低密度聚乙烯、高密度聚乙烯、加工助剂、聚丁烯、紫外线吸收剂加到混合物中,得混料;
S3、将混料装入PE压延生产线,制成聚乙烯膜(1);
S4、然后将S3中制成的聚乙烯膜(1)一侧涂覆胶水形成粘贴层(6),聚乙烯膜(1)远离粘接层(6)一侧通过胶黏剂粘合剥离层(5)。
4.根据权利要求1所述的一种易撕型聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺,其特征在于:所述聚氯乙烯膜(2)由以下重量份的原料制成:聚氯乙烯树脂80~100份、乙烯-醋酸乙烯共聚物10~30份、增塑剂5~20份、填料3~10份、抗氧化剂2~4份、1~5份聚乙烯蜡、1~3份稳定剂。
5.根据权利要求4所述的一种易撕型聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺,其特征在于:所述聚氯乙烯膜(2)的制备方法包括以下步骤;
S1、按比例称取各原料组分放入混合设备中充分混合;
S2、将S1中混合后的原料放入相应的生产设备中进行混炼塑化,经流延、压延进行成膜,通过牵引、冷却、收卷工序得聚氯乙烯膜(2);
S3、将S2中的聚氯乙烯膜(2)一侧涂覆胶水形成粘贴层(6),聚氯乙烯膜(2)远离粘接层(6)一侧通过胶黏剂粘合剥离层(5)。
6.根据权利要求1所述的一种易撕型聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺,其特征在于:所述聚偏二氯乙烯膜(3)由以下重量份的原料制成:聚偏二氯乙烯10~30份、聚乙烯醇缩丁醛1~10份、致孔剂1~20份、添加剂1~5份、溶剂50~80份。
7.根据权利要求6所述的一种易撕型聚氯乙烯-聚偏二氯乙烯-聚乙烯复合工艺,其特征在于:所述聚偏二氯乙烯膜(3)的制备方法包括以下步骤;
S1、溶解搅拌脱泡:将聚偏二氯乙烯、聚乙烯醇缩丁醛溶解在溶剂中,加入添加剂、致孔剂搅拌至均匀状态,然后脱泡得到铸膜液;
S2、将S1中将铸膜液固化成膜;
S3、将S2中的膜在水中浸泡一段时间,然后将膜干燥得到聚乙烯醇缩丁醛共混增强的聚偏二氯乙烯膜(3);
S4、将S3中的聚偏二氯乙烯膜(3)一侧涂覆胶水形成粘贴层(6),聚偏二氯乙烯膜(3)远离粘接层(6)一侧通过胶黏剂粘合剥离层(5)。
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