CN110293719A - 一种复合型聚氨酯物料输送带 - Google Patents

一种复合型聚氨酯物料输送带 Download PDF

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CN110293719A
CN110293719A CN201910413876.1A CN201910413876A CN110293719A CN 110293719 A CN110293719 A CN 110293719A CN 201910413876 A CN201910413876 A CN 201910413876A CN 110293719 A CN110293719 A CN 110293719A
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Abstract

本发明公开了一种复合型聚氨酯物料输送带，包括打底带和表带，打底带与表带之间通过粘合剂层进行连接；其中，打底带是由聚酯纤维合股纱线作为底带经纱，采用锦纶与聚酯纤维混纺作为底带纬纱；表带采用聚酯纤维作为表带经纱，用玻璃纤维作为表带纬纱，打底带与表带黏合后形成物料输送带基带，然后再在物料输送带基带的表面浸渍聚氨酯乳液，最终形成聚氨酯物料输送带。本发明针对现有的物料输送带使用强度不高，容易在使用一段时间后输送带容易与橡胶层脱胶以及耐冲击强度不高、重量大等技术问题进行改进，本发明通过采用双层结构粘黏，并且在输送带的表面涂覆有聚氨酯层，使得输送带的表面具有一定的抗震和耐磨性，同时还具有较高的使用强度。

Description

一种复合型聚氨酯物料输送带
技术领域
本发明涉及工业输送带领域，尤其涉及一种复合型聚氨酯物料输送带。
背景技术
输送带又称运输带，是用于皮带输送带中起承载和运送物料作用的橡胶与纤维、金属复合制品，或者是塑料和织物复合的制品。输送带广泛应用于水泥、焦化、冶金、化工、钢铁等行业中输送距离较短、输送量较小的场合。皮带输送机在农业、工矿企业和交通运输业中广泛用于输送各种固体块状和粉料状物料或成件物品，输送带能连续化、高效率、大倾角运输，输送带操作安全，输送带使用简便，维修容易，运费低廉，并能缩短运输距离，降低工程造价，节省人力物力。现有的输送带大多采用聚酯、尼龙等作为输送带骨架，聚酯纤维具有良好的耐气候性能，同时耐日晒，耐酸雨，同时也不怕上霉以及虫蛀，是一种非常理想的运输带骨架材料，但是其表面容易吸附灰尘，抗熔性较差，不能够长时间在高温环境下进行作业。锦纶又叫尼龙，其具有较高的强度以及耐磨性能，同时也具有良好的耐腐蚀、耐污染、耐虫蛀等性能，但是其在外力作用下容易发生变形，出现褶皱。目前大多数运输带都是采用单一材料进行制作，所以这些输送带只能用于特定的工作环境中，使用范围有限。现在市场上也有部分输送带是将基带与钢丝进行复合制作，虽然增加了使用强度但是其本身重量较大以及耐腐蚀性能就大大折扣。本发明针对以上技术问题进行改进，提供了一种复合型聚氨酯物料输送带，本设计方案从材料本身入手，通过采用适宜的纤维编制方式以及通过材料本身的属性进行改进，并且在输送带的表面涂敷有聚氨酯层，既可以方便后续与橡胶材料加工，也可以进行单独使用，不仅具有较高的使用强度，同时也提高了输送带的韧性，从而提高使用寿命和使用范围。
发明内容
本发明的目的在于克服现有技术的不足，提供了一种复合型聚氨酯物料输送带，以解决现有技术中的物料输送带使用强度不高，在使用一段时间后输送带容易与橡胶层脱胶以及耐冲击强度不高、重量大等技术问题进行改进，本发明通过采用双层结构粘黏，并且在输送带的表面涂覆有聚氨酯层，使得输送带的表面具有一定的抗震和耐磨性，既可以方便后续与橡胶材料加工，也可以进行单独使用，不仅具有较高的使用强度，同时也提高了输送带的韧性，从而提高使用寿命和使用范围。
为解决以上技术问题，本发明公开了一种复合型聚氨酯物料输送带，包括打底带和表带，打底带与表带之间通过粘合剂层进行连接；其中，打底带是由聚酯纤维经纺织加工形成的合股纱线作为底带经纱，采用锦纶与聚酯纤维混纺制成混纺纱作为底带纬纱；底带经纱与底带纬纱采用平纹编织制成，平纹为常见的输送带骨架材料机构，其具有较高的紧密程度，同时使得织物具有良好的卷曲度；表带采用聚酯纤维作为表带经纱，用玻璃纤维作为表带纬纱，表带经纱与表带纬纱采用斜纹编织制成，采用斜纹编织能够减少经纬纱的交织点，其强度利用率更高，特别是物料的抗纵向撕裂强度；打底带与表带黏合后形成物料输送带基带，然后再在物料输送带基带的表面浸渍聚氨酯乳液，形成聚氨酯物料输送带。玻璃纤维是一种性能优异的无机非金属材料，优点是绝缘性好、耐热性强、抗腐蚀性好，机械强度高。其单丝的直径为几个微米到二十几个微米，每束纤维原丝都由数百根甚至上千根单丝组成。通过将玻璃纤维与聚酯纤维进行混纺，能够提高表带的耐磨、耐热、抗腐蚀等性能。
进一步的，底带经纱线密度为110～150Tex，底带纬纱线密度为90～130Tex，玻璃纤维为单丝直径为6.5～7.5μm的多股无碱玻璃纤维，聚酯纤维为450～800D的长丝。
进一步的，为了更好的将打底带与表带进行黏合，提高二者的抗剥落性能，粘合剂层是由EVA乳液、聚硫橡胶和乙烯树脂三者按质量比50～55:25～35:18组成的混合液经粘黏、烘干后形成的胶黏层，混合液中余量为水和乳液添加剂。
进一步的，聚氨酯乳液为阴离子型水性聚氨酯乳液。
进一步的，聚氨酯乳液为氯化聚丙烯改性后的聚氨酯乳液，所述聚氨酯乳液中还包括抗氧化剂、阻燃剂、填料、固化剂和水。
进一步的，抗氧化剂为抗氧剂DSTOP，阻燃剂为无卤阻燃剂，填料为石英粉、三氧化二铝和石墨，无卤阻燃剂能够防止在高温环境中释放出卤族有害气体。
进一步的，无卤阻燃剂为氢氧化铝、氢氧化镁或聚磷酸铵中的一种或二种以上组合。
进一步的，为了更好的适用于其他工作环境，聚氨酯物料输送带的上表面还粘黏有橡胶层。
本发明公开了一种复合型聚氨酯物料输送带，本发明通过采用双层结构粘黏，并且在输送带的表面涂覆有聚氨酯层，双层结构能够大大提高输送带的使用强度，通过采用特定的编制方法能够提高输送带单位面积的抗拉、抗撕裂强度，同时输送带的表面还具有一定的抗震和耐磨性，既可以方便后续与橡胶材料加工，也可以进行单独使用，不仅具有较高的使用强度，同时也提高了输送带的韧性，从而提高使用寿命和使用范围。
具体实施方式
下面对本发明的实施例作详细说明，本实施例在以本发明技术方案为前提下进行实施，给出了详细的实施方式和具体的操作过程，但本发明的保护范围不限于下述的实施例。
实施例1
实施例1公开了一种复合型聚氨酯物料输送带，包括打底带和表带，打底带与表带之间通过粘合剂层进行连接；其中，打底带是由聚酯纤维经纺织加工形成的合股纱线作为底带经纱，采用锦纶与聚酯纤维混纺制成混纺纱作为底带纬纱；底带经纱与底带纬纱采用平纹编织制成；表带采用聚酯纤维作为表带经纱，用玻璃纤维作为表带纬纱，表带经纱与表带纬纱采用斜纹编织制成；打底带与表带黏合后形成物料输送带基带，然后再在物料输送带基带的表面浸渍聚氨酯乳液，形成聚氨酯物料输送带。底带经纱线密度为110～150Tex，底带纬纱线密度为90～130Tex，玻璃纤维为单丝直径为6.5～7.5μm的多股无碱玻璃纤维，聚酯纤维为450～800D的长丝。粘合剂层是由EVA乳液、聚硫橡胶和乙烯树脂三者按质量比50:25:18组成的混合液经粘黏、烘干后形成的胶黏层，混合液中余量为水和乳液添加剂。聚氨酯乳液为氯化聚丙烯改性后的阴离子型水性聚氨酯乳液。聚氨酯乳液中还包括抗氧化剂DSTOP、阻燃剂氢氧化铝和氢氧化镁的(质量比)1：1混合物、填料为石英粉、三氧化二铝和石墨三者的混合物，固化剂为甲基六氢苯酐和水。聚氨酯物料输送带的上表面还粘黏有橡胶层。通过石油和化学工业新材料与制品质量监督检验中心的检测数据，其径向断裂强度为703N/mm，纬向断裂强度为205N/mm，断裂伸长率径向为16.3％，纬向断裂伸长率为20％，径向卷曲度为5.2％，损毁长度为25，符合Q/HY 02-2013标准。
实施例2
实施例2公开了一种复合型聚氨酯物料输送带，包括打底带和表带，打底带与表带之间通过粘合剂层进行连接；其中，打底带是由聚酯纤维经纺织加工形成的合股纱线作为底带经纱，采用锦纶与聚酯纤维混纺制成混纺纱作为底带纬纱；底带经纱与底带纬纱采用平纹编织制成；表带采用聚酯纤维作为表带经纱，用玻璃纤维作为表带纬纱，表带经纱与表带纬纱采用斜纹编织制成；打底带与表带黏合后形成物料输送带基带，然后再在物料输送带基带的表面浸渍聚氨酯乳液，形成聚氨酯物料输送带。底带经纱线密度为110～150Tex，底带纬纱线密度为90～130Tex，玻璃纤维为单丝直径为6.5～7.5μm的多股无碱玻璃纤维，聚酯纤维为450～800D的长丝。粘合剂层是由EVA乳液、聚硫橡胶和乙烯树脂三者按质量比55:33:18组成的混合液经粘黏、烘干后形成的胶黏层，混合液中余量为水和乳液添加剂。聚氨酯乳液为氯化聚丙烯改性后的聚氨酯乳液，聚氨酯乳液中还包括抗氧化剂、阻燃剂、填料、固化剂和水。抗氧化剂为抗氧剂DSTOP，阻燃剂为聚磷酸铵无卤阻燃剂，填料为石英粉、三氧化二铝和石墨的(质量)1:1:1混合物，固化剂为甲基六氢苯酐，通过石油和化学工业新材料与制品质量监督检验中心的检测数据，其径向断裂强度为701N/mm，纬向断裂强度为205N/mm，断裂伸长率径向为16％，纬向断裂伸长率为21％，径向卷曲度为5.2％，损毁长度为18，符合Q/HY02-2013标准。
实施例3
实施例3公开了一种复合型聚氨酯物料输送带，包括打底带和表带，打底带与表带之间通过粘合剂层进行连接；其中，打底带是由聚酯纤维经纺织加工形成的合股纱线作为底带经纱，采用锦纶与聚酯纤维混纺制成混纺纱作为底带纬纱；底带经纱与底带纬纱采用平纹编织制成；表带采用聚酯纤维作为表带经纱，用玻璃纤维作为表带纬纱，表带经纱与表带纬纱采用斜纹编织制成；打底带与表带黏合后形成物料输送带基带，然后再在物料输送带基带的表面浸渍聚氨酯乳液，形成聚氨酯物料输送带。底带经纱线密度为110～150Tex，底带纬纱线密度为90～130Tex，玻璃纤维为单丝直径为6.5～7.5μm的多股无碱玻璃纤维，聚酯纤维为450～800D的长丝。粘合剂层是由EVA乳液、聚硫橡胶和乙烯树脂三者按质量比55:30:18组成的混合液经粘黏、烘干后形成的胶黏层，混合液中余量为水和乳液添加剂。聚氨酯乳液为阴离子型水性聚氨酯乳液。聚氨酯乳液中还包括抗氧化剂、阻燃剂、填料、固化剂和水。抗氧化剂为抗氧剂DSTOP，阻燃剂为无卤阻燃剂，填料为石英粉、三氧化二铝和石墨。无卤阻燃剂为氢氧化镁。通过石油和化学工业新材料与制品质量监督检验中心的检测数据，其各项数据也都符合标准。

Claims (8)

1.一种复合型聚氨酯物料输送带，其特征在于，包括打底带和表带，所述打底带与表带之间通过粘合剂层进行连接；
其中，所述打底带是由聚酯纤维经纺织加工形成的合股纱线作为底带经纱，采用锦纶与聚酯纤维混纺制成混纺纱作为底带纬纱；所述底带经纱与底带纬纱采用平纹编织制成；
所述表带采用聚酯纤维作为表带经纱，用玻璃纤维作为表带纬纱，所述表带经纱与表带纬纱采用斜纹编织制成；
所述打底带与表带黏合后形成物料输送带基带，然后再在物料输送带基带的表面浸渍聚氨酯乳液，形成聚氨酯物料输送带。
2.如权利要求1所述的复合型聚氨酯物料输送带，其特征在于，所述底带经纱线密度为110～150Tex，所述底带纬纱线密度为90～130Tex，所述玻璃纤维为单丝直径为6.5～7.5μm的多股无碱玻璃纤维，所述聚酯纤维为450～800D的长丝。
3.如权利要求1所述的复合型聚氨酯物料输送带，其特征在于，所述粘合剂层是由EVA乳液、聚硫橡胶和乙烯树脂三者按质量比50～55:25～35:18组成的混合液经粘黏、烘干后形成的胶黏层，混合液中余量为水和乳液添加剂。
4.如权利要求1所述的复合型聚氨酯物料输送带，其特征在于，所述聚氨酯乳液为阴离子型水性聚氨酯乳液。
5.如权利要求4所述的复合型聚氨酯物料输送带，其特征在于，所述聚氨酯乳液为氯化聚丙烯改性后的聚氨酯乳液，所述聚氨酯乳液中还包括抗氧化剂、阻燃剂、填料、固化剂和水。
6.如权利要求5所述的复合型聚氨酯物料输送带，其特征在于，所述抗氧化剂为抗氧剂DSTOP，所述阻燃剂为无卤阻燃剂，所述填料为石英粉、三氧化二铝和石墨。
7.如权利要求6所述的复合型聚氨酯物料输送带，其特征在于，所述无卤阻燃剂为氢氧化铝、氢氧化镁或聚磷酸铵中的一种或二种以上组合。
8.如权利要求1所述的复合型聚氨酯物料输送带，其特征在于，所述聚氨酯物料输送带的上表面还粘黏有橡胶层。
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