CN105702155A - 一种复合型标牌及其生产工艺 - Google Patents
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Abstract
本发明提供一种复合型标牌及其生产工艺,具体地,该复合型标牌包括铝箔基体、该铝箔基体的上下表面的各粘接有聚酯薄膜,该聚酯薄膜外表面的复合有涂布层;所述铝箔基体上设有若干通孔,所述通孔的面积占所述铝箔基体总面积的2-5%;所述聚酯薄膜与所述铝箔基体采用双组分聚氨酯胶粘剂粘接,所述涂布层由硅烷偶联剂改性的丙烯酸酯乳液制成。该复合型标牌采用干法复合方式将各层复合于一体。该复合型标牌耐高温、耐老化、耐折性能高、打印性能好,打印后的油墨的耐冲刷性强,适用于长期裸露于室外,可用于建立钢材信息的物联网。
Description
技术领域
本发明涉及标牌领域,具体涉及一种复合型标牌及其生产工艺。
背景技术
随着钢铁工业及其信息化技术的迅速发展,对钢铁产品从生产到成品投放市场全过程的在线检测、产品质量跟踪、以及永久性质量追溯的要求越来越高.目前,国内部分厂家仍然采用人工标记方式,即由工人在钢材表面上写字或喷字作为标记。此时钢坯表面温度还很高,生产节奏快,工人操作时容易烫伤,操作危险,并且容易造成“混钢”,使标号与钢坯不能一一对应。同时,喷在钢铁上的涂料容易被高温挥发或标记在氧化铁皮上,在存放、运输过程中,使标记容易丢失或模糊而不可识别,而且涂料遇热后会挥发出刺激性的气体、烟雾,影响操作工人的身体健康,进一步污染环境,因此对耐高温、耐老化、耐折性能高的标牌的需求非常紧迫。
发明内容
为了克服现有技术的不足,本发明的目的在于提供一种耐高温、耐老化、耐折性能高的复合型标牌。
为解决上述问题,本发明所采用的技术方案如下:
一种复合型标牌,包括铝箔基体、该铝箔基体的上下表面的各粘接有聚酯薄膜,该聚酯薄膜外表面的复合有涂布层;
所述铝箔基体上设有若干通孔,所述通孔的面积占所述铝箔基体总面积的2-5%;所述聚酯薄膜与所述铝箔基体采用双组分聚氨酯胶粘剂粘接,所述涂布层由硅烷偶联剂改性的丙烯酸酯乳液制成。
作为优选,所述硅烷偶联剂为含有乙烯基官能团的有机硅单体。
作为优选,所述硅烷偶联剂为γ-(甲基丙烯酰氧基)丙基三甲氧基硅烷。
作为优选,所述硅烷偶联剂改性的丙烯酸酯乳液由甲基丙烯酸甲酯、丙烯酸丁酯、硅烷偶联剂、引发剂和乳化剂制成。
作为优选,所述聚酯薄膜的材质为聚对苯二甲酸乙二醇酯。
作为优选,所述铝箔基体的厚度为60-90μm,所述聚酯薄膜的厚度为50-90μm。
作为优选,所述涂布层的厚度为2-4μm。
本发明的另一目的在于提供上述复合型标牌的生产工艺,包括以下步骤:
1)铝箔基体加工:在铝箔基体上加工形成通孔;
2)复合胶粘剂:在铝箔基体上下表面复合一层厚度为4-6μm的双组分聚氨酯胶粘剂;
3)粘接聚酯薄膜:在步骤2)处理后的铝箔基体上下表面干法复合聚脂薄膜;
4)复合涂布层:将硅烷偶联剂改性的丙烯酸酯乳液涂覆在步骤3)所述的聚酯薄膜外表面,使其形成一层厚为2-4μm的涂布层。
作为优选,步骤2)中,采用干法复合方式在铝箔基体的上下表面各复合胶粘剂。
作为优选,步骤4)中,采用干法复合方式在聚酯薄膜外表面涂覆形成涂布层。
相比现有技术,本发明的有益效果在于:
本发明提供的复合型标牌通过内设铝箔基体,有效地加强了该标牌的耐高温性和耐折性;铝箔基体上设有通孔,避免了复合表面产生气泡,提高了双组分聚氨酯胶粘剂与铝箔基体的胶粘强度,不易分离,另一方面,也提高了两聚酯薄膜层之间的胶粘强度;涂布层有效地提高了聚酯薄膜对油墨的附着能力和聚酯薄膜层的耐老化能力。该复合型标牌耐高温、耐老化、耐折性能高、打印性能好,打印后的油墨的耐冲刷性强,适用于长期裸露于室外,可用于建立钢材信息的物联网。
下面结合具体实施方式对本发明作进一步详细说明。
具体实施方式
以下具体实施方式中,如未特殊说明,所采用的原料均可通过市售的方式或通过常规的试验手段获得。所述干法复合方式为采用干法复合机将各层复合于一体。
本发明中,所述硅烷偶联剂改性的丙烯酸酯乳液由甲基丙烯酸甲酯、丙烯酸丁酯、硅烷偶联剂、引发剂和乳化剂制成。其中,甲基丙烯酸甲酯和丙烯酸丁酯共同作为单体,乳化剂为由可聚合反应型乳化剂和阴离子型乳化剂组成的复合乳化体系,引发剂为由过硫酸铵和亚硫酸纳组成的复合引发体系;硅烷偶联剂的用量为丙烯酸酯乳液的体积的5-8%。
其中硅烷偶联剂为含有乙烯基官能团的有机硅单体,选自乙烯基三乙氧基硅烷、乙烯基三(β-甲氧乙氧基)硅烷或γ-(甲基丙烯酰氧基)丙基三甲氧基硅烷。
本发明提供一种复合型标牌,包括铝箔基体、该铝箔基体的上下表面的各粘接有聚酯薄膜,该聚酯薄膜外表面的复合有涂布层;该复合型标牌呈涂布层-聚酯薄膜层-胶粘剂层-铝箔基体-胶粘剂层-聚酯薄膜层-涂布层的多层复合结构;
所述铝箔基体上设有若干通孔,所述通孔的面积占所述铝箔基体总面积的2-5%;所述聚酯薄膜与所述铝箔基体采用双组分聚氨酯胶粘剂粘接,所述涂布层由硅烷偶联剂改性的丙烯酸酯乳液制成。
其中聚酯薄膜的材质为聚对苯二甲酸乙二醇酯,简称PET。
通孔一方面避免了复合表面产生气泡,提高了双组分聚氨酯胶粘剂与铝箔基体的胶粘强度,减少高温时胶粘剂从铝箔基体脱落的可能性。另一方面铝箔基体的通孔增强了两层聚酯薄膜之间的胶粘强度。该双组分聚氨酯胶粘剂具有较高的耐热性,在高温下不易脱开。硅烷偶联剂改性的丙烯酸酯乳液的涂布层提高了聚酯薄膜的表面张力,提高了聚酯薄膜的耐老化能力,使印刷于其上的油墨具有较高的耐冲刷性能。
实施例1:
一种复合型标牌,包括铝箔基体、该铝箔基体的上下表面的各粘接有聚酯薄膜,该聚酯薄膜外表面的复合有涂布层;
所述铝箔基体上设有若干通孔,所述通孔的面积占所述铝箔基体总面积的2%;所述聚酯薄膜与所述铝箔基体采用双组分聚氨酯胶粘剂粘接,所述涂布层由硅烷偶联剂改性的丙烯酸酯乳液制成。
所述复合型标牌采用干法复合方式进行复合,其生产工艺包括以下步骤:
1)铝箔基体加工:在铝箔基体上加工形成通孔,通孔在铝箔基体上呈规则的阵列排布,通孔的面积占铝箔的面积的2%;
2)复合胶粘剂:在铝箔基体上下表面复合一层厚度为4μm的双组分聚氨酯胶粘剂;
3)粘接聚酯薄膜:在步骤2)处理后的铝箔基体上下表面复合聚脂薄膜,聚脂薄膜的材料为PET,聚膜薄膜的厚度为60μm;
4)复合涂布层:将硅烷偶联剂改性的丙烯酸酯乳液涂覆在步骤3)所述的聚酯薄膜外表面,使其形成一层厚为4μm的涂布层。
本实施例中,所述硅烷偶联剂改性的丙烯酸酯乳液的制备方法如下:
将40-50kg水和2kg的乳化剂加入烧瓶中,通入氮气,升温并搅拌至60-65℃加入0.1kg的过硫酸铵,滴加入25kg单体和3kgγ-(甲基丙烯酰氧基)丙基三甲氧基硅烷,滴加完毕后,再滴加0.1kg亚硫酸纳、20kg单体、3kgγ-(甲基丙烯酰氧基)丙基三甲氧基硅烷,保温反应2-3小时,降温至40-45℃,调节pH至8-9,得到硅烷偶联剂改性的丙烯酸酯乳液;
其中,乳化剂为可聚合乳化剂和阴离子表面活性剂,可聚合乳化剂和阴离子表面活性剂的重量比为3:1,其中可聚合乳化剂的型号为OP-10,阴离子表面活性剂为十二烷基联苯醚二磺酸钠;单体为甲基丙烯酸甲酯和丙烯酸丁酯的混合物,其中,甲基丙烯酸甲酯与丙烯酸丁酯的重量比为1:2。
实施例2:
一种复合型标牌,包括铝箔基体、该铝箔基体的上下表面的各粘接有聚酯薄膜,该聚酯薄膜外表面的复合有涂布层;
所述铝箔基体上设有若干通孔,所述通孔的面积占所述铝箔基体总面积的5%;所述聚酯薄膜与所述铝箔基体采用双组分聚氨酯胶粘剂粘接,所述涂布层由硅烷偶联剂改性的丙烯酸酯乳液制成。
所述复合型标牌采用干法复合方式进行复合,其生产工艺包括以下步骤:
1)铝箔基体加工:在铝箔基体上加工形成通孔,通孔在铝箔基体上呈规则的阵列排布,通孔的面积占铝箔的面积的5%;
2)复合胶粘剂:在铝箔基体上下表面复合一层厚度为6μm的双组分聚氨酯胶粘剂;
3)粘接聚酯薄膜:在步骤2)处理后的铝箔基体上下表面复合聚脂薄膜,聚脂薄膜的材料为PET,聚膜薄膜的厚度为90μm;
4)复合涂布层:将硅烷偶联剂改性的丙烯酸酯乳液涂覆在步骤3)所述的聚酯薄膜外表面,使其形成一层厚为2μm的涂布层。
本实施例中,所述硅烷偶联剂改性的丙烯酸酯乳液的制备方法如下:
将40-50kg水和2kg的乳化剂加入烧瓶中,通入氮气,升温并搅拌至60-65℃加入25kg单体,加入0.1kg的过硫酸铵,聚合形成种子乳液。滴加入20kg单体和5kgγ-(甲基丙烯酰氧基)丙基三甲氧基硅烷和0.1kg亚硫酸纳,保温反应2-3小时,降温至40-45℃,调节pH至8-9,得到硅烷偶联剂改性的丙烯酸酯乳液;
其中,乳化剂为可聚合乳化剂和阴离子表面活性剂,可聚合乳化剂和阴离子表面活性剂的重量比为5:2,其中可聚合乳化剂的型号为OP-10,阴离子表面活性剂为十二烷基联苯醚二磺酸钠;单体为甲基丙烯酸甲酯和丙烯酸丁酯的混合物,其中,甲基丙烯酸甲酯与丙烯酸丁酯的重量比为1:2。
实施例3:
一种复合型标牌,包括铝箔基体、该铝箔基体的上下表面的各粘接有聚酯薄膜,该聚酯薄膜外表面的复合有涂布层;
所述铝箔基体上设有若干通孔,所述通孔的面积占所述铝箔基体总面积的3%;所述聚酯薄膜与所述铝箔基体采用双组分聚氨酯胶粘剂粘接,所述涂布层由硅烷偶联剂改性的丙烯酸酯乳液制成。
所述复合型标牌采用干法复合方式进行复合,其生产工艺包括以下步骤:
1)铝箔基体加工:在铝箔基体上加工形成通孔,通孔在铝箔基体上呈规则的阵列排布,通孔的面积占铝箔的面积的3%;
2)复合胶粘剂:在铝箔基体上下表面复合一层厚度为5μm的双组分聚氨酯胶粘剂;
3)粘接聚酯薄膜:在步骤2)处理后的铝箔基体上下表面复合聚脂薄膜,聚脂薄膜的材料为PET,聚膜薄膜的厚度为80μm;
4)复合涂布层:将硅烷偶联剂改性的丙烯酸酯乳液涂覆在步骤3)所述的聚酯薄膜外表面,使其形成一层厚为3μm的涂布层。
本实施例中,所述硅烷偶联剂改性的丙烯酸酯乳液的制备方法如下:
将40-50kg水和1.8kg的乳化剂加入烧瓶中,通入氮气,升温并搅拌至60-65℃加入25kg单体,加入0.1kg的过硫酸铵,聚合形成种子乳液。滴加入20kg单体和6kgγ-(甲基丙烯酰氧基)丙基三甲氧基硅烷和0.1kg亚硫酸纳,保温反应2-3小时,降温至40-45℃,调节pH至8-9,得到硅烷偶联剂改性的丙烯酸酯乳液;
其中,乳化剂为可聚合乳化剂和阴离子表面活性剂,可聚合乳化剂和阴离子表面活性剂的重量比为3:1,其中可聚合乳化剂的型号为OP-10,阴离子表面活性剂为十二烷基联苯醚二磺酸钠;单体为甲基丙烯酸甲酯和丙烯酸丁酯的混合物,其中,甲基丙烯酸甲酯与丙烯酸丁酯的重量比为1:2。
检测实施例
采用实施例1-3得到的复合型标牌,与普通的聚酯薄膜标牌、通用型复合膜标牌以及钢版标牌进行打印功能、耐高温性试验和机械性能试验,其结果如表1所示,其中聚酯薄膜标牌为单层的PET标牌,通用型复合膜标牌为PET-铝箔-PET三层复合型标牌,钢牌标牌为0.3mm镀锌板。
表1性能检测结果表
如表1所示,单层聚酯薄膜标牌虽然在抗拉强度和耐折性方面性能较佳,但是其在不耐高温,且打印性能差;通用型复合标牌机械性能尚理想,但在高温下也易分层脱开;钢版标牌的打印性能、耐高温性均不理想,且耐折性差。
由本发明提供的复合型标牌,该复合型标牌耐高温、耐老化、耐折性能高,适用于长期裸露于室外,可用于建立钢材信息的物联网。
上述实施方式仅为本发明的优选实施方式,不能以此来限定本发明保护的范围,本领域的技术人员在本发明的基础上所做的任何非实质性的变化及替换均属于本发明所要求保护的范围。
Claims (10)
1.一种复合型标牌,其特征在于,包括铝箔基体、该铝箔基体的上下表面的各粘接有聚酯薄膜,该聚酯薄膜外表面的复合有涂布层;
所述铝箔基体上设有若干通孔,所述通孔的面积占所述铝箔基体总面积的2-5%;所述聚酯薄膜与所述铝箔基体采用双组分聚氨酯胶粘剂粘接,所述涂布层由硅烷偶联剂改性的丙烯酸酯乳液制成。
2.如权利要求1所述的复合型标牌,其特征在于,所述硅烷偶联剂为含有乙烯基官能团的有机硅单体。
3.如权利要求1所述的复合型标牌,其特征在于,所述硅烷偶联剂为γ-(甲基丙烯酰氧基)丙基三甲氧基硅烷。
4.如权利要求1所述的复合型标牌,其特征在于,所述硅烷偶联剂改性的丙烯酸酯乳液由甲基丙烯酸甲酯、丙烯酸丁酯、硅烷偶联剂、引发剂和乳化剂制成。
5.如权利要求1所述的复合型标牌,其特征在于,所述聚酯薄膜的材质为聚对苯二甲酸乙二醇酯。
6.如权利要求1所述的复合型标牌,其特征在于,所述铝箔基体的厚度为60-90μm,所述聚酯薄膜的厚度为50-90μm。
7.如权利要求1所述的复合型标牌,其特征在于,所述涂布层的厚度为2-4μm。
8.如权利要求1-7所述的复合型标牌的生产工艺,包括以下步骤:
1)铝箔基体加工:在铝箔基体上加工形成通孔;
2)复合胶粘剂:在铝箔基体上下表面复合一层厚度为4-6μm的双组分聚氨酯胶粘剂;
3)粘接聚酯薄膜:在步骤2)处理后的铝箔基体上下表面干法复合聚脂薄膜;
4)复合涂布层:将硅烷偶联剂改性的丙烯酸酯乳液涂覆在步骤3)所述的聚酯薄膜外表面,使其形成一层厚为2-4μm的涂布层。
9.如权利要求8所述的生产工艺,其特征在于,步骤2)中,采用干法复合方式在铝箔基体的上下表面各复合胶粘剂。
10.如权利要求8所述的生产工艺,其特征在于,步骤4)中,采用干法复合方式在聚酯薄膜外表面涂覆形成涂布层。
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