CN107353856A - 一种复合无纺布粘合剂 - Google Patents
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Abstract
本发明公开一种复合无纺布粘合剂,由70‑90%乳液型粘合剂和10‑30%的混合添加剂组成,其中乳液型粘合剂由以下重量份的组分制成:丙烯酸丁酯19‑23份、丙烯酸乙酯10‑15份、丙烯酸8‑10份、4‑三甲基硅基苯乙烯7‑10份、丙烯酸羟乙酯16‑20份、硼酸三丁酯3‑5份、乙二胺基丙磺酸钠1‑2份、4‑三氟代甲基碳酸乙烯酯3‑6份、引发剂1‑2份、乳化剂3‑6份。本发明提供的复合无纺布粘合剂,无毒无害,耐磨性、耐油性、耐低温性和成膜性好,并且粘结力强,扩大了复合无纺布的应用领域。
Description
技术领域
本发明属于复合无纺布制造领域,具体涉及一种复合无纺布粘合剂。
背景技术
复合无纺布是新型的包装材料。可对无纺布及其它面料进行多种方式的复合处理,如淋膜处理、热压处理、喷胶处理、超声波处理等, 通过复合处理可以把两层或三层的面料复合在一起,从而生产出具有特殊功能的产品,如高强力、高吸水性、高阻隔性、高抗静水压等。复合材料已广泛应用于医疗、卫生、防护、工业以及汽车工业等领域。其中喷胶处理因制作工艺简单而被广泛的采用,但是采用喷胶处理的复合无纺布,在使用的过程中,因为粘合剂的性能较差,使得其在使用的过程中易出现断裂,分层等各种问题,制约了复合无纺布领域的发展,因此急需一种性能更加优越的复合无纺布粘合剂。
发明内容
为了解决现有技术的不足,本发明提供一种复合无纺布粘合剂。
本发明是通过以下技术方案实现的。
一种复合无纺布粘合剂,由70-90%乳液型粘合剂和10-30%的混合添加剂组成,其中乳液型粘合剂由以下重量份的组分制成:丙烯酸丁酯19-23份、丙烯酸乙酯10-15份、丙烯酸8-10份、4-三甲基硅基苯乙烯7-10份、丙烯酸羟乙酯16-20份、硼酸三丁酯3-5份、乙二胺基丙磺酸钠1-2份、4-三氟代甲基碳酸乙烯酯3-6份、引发剂1-2份、乳化剂3-6份,其中混合添加剂由以下重量份的组分制成:乙基三氯硅烷12-16份、棕榈酸异辛酯7-10份、硅酸乙酯11-13份、纳米硅粉3-5份、硬脂酸钠7-9份、二氧化钛1-2份。
具体地,上述引发剂为过硫酸钾、过硫酸钠、过硫酸铵中任意一种。
具体地,上述乳化剂为油酸聚氧乙烯酯、硬脂酸聚氧乙烯酯、松香酸聚氧乙烯酯中的任意一种。
具体地,所述乳液型粘合剂采用以下方法制成:将乳化剂加入与其等重的去离子水中,持续搅拌5min后,向其中加入丙烯酸丁酯、丙烯酸乙酯、丙烯酸、4-三甲基硅基苯乙烯、丙烯酸羟乙酯、硼酸三丁酯,采用500r/min的转速持续搅拌30min后,向其中加入乙二胺基丙磺酸钠、4-三氟代甲基碳酸乙烯酯、引发剂,继续采用500r/min的转速搅拌5min后,将混合物的温度升至75℃,维持此温度,反应一小时后,将混合物降至室温,制得乳液型粘合剂。
具体地,上述混合添加剂采用以下方法制成:将乙基三氯硅烷、棕榈酸异辛酯、硅酸乙酯混合后,采用200r/min的转速搅拌10min,然后向其中加入纳米硅粉、硬脂酸钠、二氧化钛,继续搅拌10min后,制得混合添加剂。
由以上的技术方案可知,本发明的有益效果是:
本发明提供的复合无纺布粘合剂,无毒无害,耐磨性、耐油性、耐低温性和成膜性好,并且粘结力强,扩大了复合无纺布的应用领域。其中,乙二胺基丙磺酸钠、4-三氟代甲基碳酸乙烯酯协同作用后,不仅可以有效的加快聚合反应的速度,加快反应的散发,还能使得制得的乳液型粘合剂具有优异的抗老化能力,延长了复合无纺布粘合剂的使用寿命;本发明提供的混合添加剂,极大提提升了粘合剂的各项力学性能,并且提升了粘合剂的耐高温能力,还使得干燥后的粘合剂具有一定的防污防水能力,可减少污渍在粘合剂表面的吸附,可避免粘结剂在使用的过程中发生水解,延长了粘合剂的使用寿命。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白,以下实施例对本发明进行进一步详细说明。应当理解,此处所描述的具体实施方例仅仅用以解释本发明,并不用于限定本发明。
实施例1
一种复合无纺布粘合剂,由70%乳液型粘合剂和30%的混合添加剂组成,其中乳液型粘合剂由以下重量份的组分制成:丙烯酸丁酯19份、丙烯酸乙酯10份、丙烯酸8份、4-三甲基硅基苯乙烯7份、丙烯酸羟乙酯16份、硼酸三丁酯3份、乙二胺基丙磺酸钠1份、4-三氟代甲基碳酸乙烯酯3份、引发剂1份、乳化剂3份,其中混合添加剂由以下重量份的组分制成:乙基三氯硅烷12份、棕榈酸异辛酯7份、硅酸乙酯11份、纳米硅粉3份、硬脂酸钠7份、二氧化钛1份。
具体地,上述引发剂为过硫酸钾。
具体地,上述乳化剂为油酸聚氧乙烯酯。
实施例2
一种复合无纺布粘合剂,由80%乳液型粘合剂和20%的混合添加剂组成,其中乳液型粘合剂由以下重量份的组分制成:丙烯酸丁酯21份、丙烯酸乙酯13份、丙烯酸9份、4-三甲基硅基苯乙烯8份、丙烯酸羟乙酯18份、硼酸三丁酯4份、乙二胺基丙磺酸钠1份、4-三氟代甲基碳酸乙烯酯5份、引发剂1份、乳化剂5份,其中混合添加剂由以下重量份的组分制成:乙基三氯硅烷14份、棕榈酸异辛酯8份、硅酸乙酯12份、纳米硅粉4份、硬脂酸钠8份、二氧化钛1份。
具体地,上述引发剂为过硫酸钠。
具体地,上述乳化剂为硬脂酸聚氧乙烯酯。
实施例3
一种复合无纺布粘合剂,由90%乳液型粘合剂和10%的混合添加剂组成,其中乳液型粘合剂由以下重量份的组分制成:丙烯酸丁酯23份、丙烯酸乙酯15份、丙烯酸10份、4-三甲基硅基苯乙烯10份、丙烯酸羟乙酯20份、硼酸三丁酯5份、乙二胺基丙磺酸钠2份、4-三氟代甲基碳酸乙烯酯6份、引发剂2份、乳化剂6份,其中混合添加剂由以下重量份的组分制成:乙基三氯硅烷16份、棕榈酸异辛酯10份、硅酸乙酯13份、纳米硅粉5份、硬脂酸钠9份、二氧化钛2份。
具体地,上述引发剂为过硫酸铵。
具体地,上述乳化剂为松香酸聚氧乙烯酯。
对比例1
乳液型粘合剂中不含有乙二胺基丙磺酸钠、4-三氟代甲基碳酸乙烯酯,其余成分与实施例1完全相同。
对比例2
不添加混合添加剂,其余成分与实施例2完全相同。
分别用个实施例和对比例中的方法制得复合无纺布粘结剂,然后对成分与制作工艺完全相同的聚丙烯无纺布进行粘结,粘结层数为两层,测得制得的复合无纺布的横向断裂强度、纵向断裂强度以及伸长率,对照组中所用的粘合剂为市售普通的粘合剂,试验结果如表1所示:
表1 不同粘合剂对复合无纺布力学性能的影响
项目 | 横向断裂强度/N | 纵向断裂强度/N | 伸长率/% |
实施例1 | 384 | 607 | 24 |
对比例1 | 361 | 592 | 22 |
实施例2 | 389 | 609 | 26 |
对比例2 | 353 | 586 | 21 |
实施例3 | 390 | 610 | 27 |
对照组 | 347 | 580 | 19 |
由表1可知,本发明提供的复合无纺布粘合剂,可以有效的提升复合无纺布的力学性能,扩大了复合无纺布的应用领域。
当然,上述说明并非是对本发明的限制,本发明也并不限于上述举例,本技术领域的普通技术人员,在本发明的实质范围内,作出的变化、改变、添加或替换,都应属于本发明的保护范围。
Claims (5)
1.一种复合无纺布粘合剂,其特征在于,由70-90%乳液型粘合剂和10-30%的混合添加剂组成,其中乳液型粘合剂由以下重量份的组分制成:丙烯酸丁酯19-23份、丙烯酸乙酯10-15份、丙烯酸8-10份、4-三甲基硅基苯乙烯7-10份、丙烯酸羟乙酯16-20份、硼酸三丁酯3-5份、乙二胺基丙磺酸钠1-2份、4-三氟代甲基碳酸乙烯酯3-6份、引发剂1-2份、乳化剂3-6份,其中混合添加剂由以下重量份的组分制成:乙基三氯硅烷12-16份、棕榈酸异辛酯7-10份、硅酸乙酯11-13份、纳米硅粉3-5份、硬脂酸钠7-9份、二氧化钛1-2份。
2.根据权利要求1中所述的一种复合无纺布粘合剂,其特征在于,上述引发剂为过硫酸钾、过硫酸钠、过硫酸铵中任意一种。
3.根据权利要求1中所述的一种复合无纺布粘合剂,其特征在于,上述乳化剂为油酸聚氧乙烯酯、硬脂酸聚氧乙烯酯、松香酸聚氧乙烯酯中的任意一种。
4.根据权利要求1中所述的一种复合无纺布粘合剂,其特征在于,所述乳液型粘合剂采用以下方法制成:将乳化剂加入与其等重的去离子水中,持续搅拌5min后,向其中加入丙烯酸丁酯、丙烯酸乙酯、丙烯酸、4-三甲基硅基苯乙烯、丙烯酸羟乙酯、硼酸三丁酯,采用500r/min的转速持续搅拌30min后,向其中加入乙二胺基丙磺酸钠、4-三氟代甲基碳酸乙烯酯、引发剂,继续采用500r/min的转速搅拌5min后,将混合物的温度升至75℃,维持此温度,反应一小时后,将混合物降至室温,制得乳液型粘合剂。
5.根据权利要求1中所述的一种复合无纺布粘合剂,其特征在于,上述混合添加剂采用以下方法制成:将乙基三氯硅烷、棕榈酸异辛酯、硅酸乙酯混合后,采用200r/min的转速搅拌10min,然后向其中加入纳米硅粉、硬脂酸钠、二氧化钛,继续搅拌10min后,制得混合添加剂。
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