CN106012385A - 一种耐热输送带用耐高温型浸胶帆布的生产方法 - Google Patents

一种耐热输送带用耐高温型浸胶帆布的生产方法 Download PDF

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CN106012385A
CN106012385A CN201610529156.8A CN201610529156A CN106012385A CN 106012385 A CN106012385 A CN 106012385A CN 201610529156 A CN201610529156 A CN 201610529156A CN 106012385 A CN106012385 A CN 106012385A
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high temperature
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李涛
刘希华
李志武
陈山
张玉友
阮长征
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SHANDONG HAILONG LAITE CHEMICAL FIBER CO Ltd
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Abstract

本发明提供了一种耐热输送带用耐高温型浸胶帆布的生产方法,包括浸胶步骤,所述浸胶为双浴法浸胶,所述双浴法浸胶包括预浸胶工艺和二次浸胶工艺,所述的预浸胶工艺流程为:坯布导开、1#张力架、1#浸胶槽浸胶、2#张力架、1#干燥区烘干、热拉伸区、3#张力架,所述的二次浸胶工艺流程为:承接3#张力架,然后经2#浸胶槽浸胶、2#干燥区烘干、4#张力架、热定型区(拉幅)、5#张力架。本发明具有耐高温性能好、粘合性能好、尺寸稳定性好。

Description

一种耐热输送带用耐高温型浸胶帆布的生产方法
技术领域
本发明涉及化纤纺织技术领域,尤其涉及一种帆布,具体是指一种耐热输送带用耐高温型浸胶帆布的生产方法。
背景技术
众所周知,耐热输送带主要用于输送高温物料,如:烧结矿、焦炭、水泥熟料、石灰、化肥等;其骨架材料上需覆以耐热性能优良的特种合成橡胶。
目前,耐热输送带用骨架材料主要是常规浸胶EP帆布,常规浸胶EP帆布生产的耐热输送带高温运行时易变形,输送带长时间运行易脱层的缺点。
基于以上缺点,需要研发一种综合性能良好的耐高温型浸胶帆布,满足于耐热输送带的使用要求。
发明内容
本发明要解决的技术问题是针对现有技术所存在的不足之处,提供一种耐热输送带用耐高温型浸胶帆布的生产方法,该方法生产的帆布耐高温性能好、粘合性能好、尺寸稳定性好。
本发明的技术解决方案是,提供如下一种耐热输送带用耐高温型浸胶帆布的生产方法,包括浸胶步骤,所述浸胶为双浴法浸胶,所述双浴法浸胶包括预浸胶工艺和二次浸胶工艺。
作为优选,所述的预浸胶工艺流程为:坯布导开、1#张力架、1#浸胶槽浸胶、2#张力架、1#干燥区烘干、热拉伸区、3#张力架。
作为优选,所述的二次浸胶工艺流程为:承接3#张力架,然后经2#浸胶槽浸胶、2#干燥区烘干、4#张力架、热定型区(拉幅)、5#张力架。
作为优选,所述双浴法浸胶工艺条件为:浸胶速度10~35m/min,1#干燥区温度175±15℃,热拉伸区温度230±15℃;
2#干燥区温度130±15℃,热定型区温度215±15℃;
1#张力架与2#张力架之间(即1#浸胶槽段)牵伸率100±1.5%,
2#张力架与3#张力架之间(即1#干燥区和热拉伸区)牵伸率100±4.5%,
3#张力架与4#张力架之间(即2#干燥区)牵伸率99±2.5%,
4#张力架与5#张力架之间(即烘干热定型区)牵伸率97.5±2.5%。
作为优选,预浸工艺用的预浸胶液的制备:所述预浸液是用端基封闭了的异氰酸酯水分散体浸渍液,预浸液浸胶配方含量为:脱盐水为94±4%,异氰酸酯5±2%,环氧树脂1±0.5%。
作为优选,二次浸胶工艺用的二浸液的制备:二浸液采用常规间苯二酚-甲醛为主的水基粘合体系RFL液基础上,在配方中添加了适量的异氰酸酯和适量的天然胶乳;具体配方为:软化水1444±7.22㎏、烧碱3.0±0.009㎏、间苯二酚50±0.25㎏、甲醛75±0.375㎏(浓度37%)、氨水40±0.2㎏(浓度28%)、丁吡胶乳1170±5.85㎏、天然胶乳60~150㎏、异氰酸酯20~60㎏。
作为优选,在进行浸胶步骤之前,还包括捻线步骤:经线采用高模低缩涤纶工业长丝,纬线采用中碱型玻璃长纤维,并进行合适的捻度进行加捻合股,经线和纬纱的捻度范围为5捻/10cm~12捻/10cm。
作为优选,还包括织布步骤,采用平纹、双经平纹或两上两下断斜纹方式编织,所述经线密度范围为110根/10cm~220根/10cm,纬线密度范围为25根/10cm~65根/10cm。
作为优选,在二次浸胶工艺处理后,还进行卷取、包装,最终形成成品。
作为优选,所述产品的性能指标:所述产品的性能指标为:200℃、60分钟的干热收缩率径向为4.1~4.3%,纬向为0;150℃、30分钟的干热收缩率径向为0.8~0.9%,纬向为0,断裂强度经向为201~520N/mm,纬向为80~105N/mm,粘合强度经向和纬向均为11.0~14.0 N/mm。
本发明的耐高温型浸胶帆布粘合强度能达到11N/mm以上,而常规EP浸胶帆布粘合强度一般只能达到8.5N/mm左右。
本发明的耐高温型浸胶帆布与常规EP浸胶帆布指标对比见下表:
具体实施方式
为便于说明,下面对发明的耐热输送带用耐高温型浸胶帆布的生产方法做详细说明。
一种耐热输送带用耐高温型浸胶帆布的生产方法,包括捻线、织布、浸胶、卷取、包装,最后成品出货。
其中捻线步骤:经线采用高模低缩涤纶工业长丝,纬线采用中碱型玻璃长纤维,进行合适的捻度进行加捻合股,经线和纬纱的捻度范围为5捻/10cm~12捻/10cm。
织布步骤:采用平纹或两上两下断斜纹方式编织,所述经线密度范围为110根/10cm~220根/10cm,纬线密度范围为25根/10cm~65根/10cm。
浸胶步骤,所述浸胶为双浴法浸胶,所述双浴法浸胶包括预浸胶工艺和二次浸胶工艺。
所述的预浸胶工艺流程为:坯布导开、1#张力架涨紧、1#浸胶槽浸胶、2#张力架涨紧、1#干燥区烘干、热拉伸区、3#张力架涨紧。
所述的二次浸胶工艺流程为:承接3#张力架,然后经2#浸胶槽浸胶、2#干燥区烘干、4#张力架涨紧、热定型区(拉幅)、5#张力架涨紧。
所述双浴法浸胶工艺条件为:浸胶速度10~35m/min,1#干燥区温度175±15℃,热拉伸区温度230±15℃;
2#干燥区温度130±15℃,热定型区温度215±15℃;
1#张力架与2#张力架之间(即1#浸胶槽段)牵伸率100±1.5%,
2#张力架与3#张力架之间(即1#干燥区和热拉伸区)牵伸率100±4.5%,
3#张力架与4#张力架之间(即2#干燥区)牵伸率99±2.5%,
4#张力架与5#张力架之间(即烘干热定型区)牵伸率97.5±2.5%。
预浸工艺用的预浸胶液的制备:所述预浸液是用端基封闭了的异氰酸酯水分散体浸渍液,预浸液浸胶配方含量为:脱盐水为94±4%,异氰酸酯5±2%,环氧树脂1±0.5%。
二次浸胶工艺用的二浸液的制备:二浸液采用常规间苯二酚-甲醛为主的水基粘合体系RFL液基础上,在配方中添加了适量的异氰酸酯和适量的天然胶乳;具体配方为:软化水1444±7.22㎏、烧碱3.0±0.009㎏、间苯二酚50±0.25㎏、甲醛75±0.375㎏(浓度37%)、氨水40±0.2㎏(浓度28%)、丁吡胶乳1170±5.85㎏、天然胶乳60~150㎏、异氰酸酯20~60㎏。
在二次浸胶工艺处理后,还进行卷取、包装,最终形成成品。
实施例1:耐高温EG-150型
1、材料选择及捻织工艺见下表:
2、采用双浴法浸胶工艺路线进行浸胶,其浸胶工艺为:浸胶速度25m/min,1#干燥区温度175℃,热拉伸区温度230℃,2#干燥区温度135℃,热定型区温度215℃;1#张力架与2#张力架之间(1#浸胶槽)牵伸率100%,2#张力架与3#张力架之间(1#干燥干燥和拉伸区)牵伸率100%,3#张力架与4#张力架之间(2#干燥区)牵伸率99.5%,4#张力架与5#张力架之间(烘干热定型区)牵伸率97.5%。
3、采用的浸胶配方为:预浸液是用端基封闭了的异氰酸酯水分散体浸渍液。具体配方为:脱盐水2775kg、异氰酸酯150㎏、环氧树脂30㎏。
4、二浸液采用间苯二酚—甲醛为主的水基粘合体系RFL液,具体配方为:软化水1444㎏、烧碱3.0㎏、间苯二酚50㎏、甲醛75㎏(浓度37%)、氨水40㎏(浓度28%)、丁吡胶乳1170㎏、天然胶乳80㎏、异氰酸酯50㎏。
5、实施例1产品质量指标:
实施例2:耐高温EG-200型
1、材料选择及捻织工艺见下表:
2、采用双浴法浸胶工艺路线进行浸胶,其浸胶工艺为:浸胶速度23m/min,1#干燥区温度177℃,热拉伸区温度230℃,2#干燥区温度130℃,热定型区温度216℃;1#张力架与2#张力架之间(1#浸胶槽)牵伸率100%,2#张力架与3#张力架之间(1#干燥干燥和拉伸区)牵伸率100.2%,3#张力架与4#张力架之间(2#干燥区)牵伸率99.0%,4#张力架与5#张力架之间(烘干热定型区)牵伸率97.5%。
3、采用的浸胶配方与实例1浸胶配方相同。
4、实施例2产品质量指标:
实施例3:耐高温EG-300型
1、材料选择及捻织工艺见下表:
2、采用双浴法浸胶工艺路线进行浸胶,其浸胶工艺为:浸胶速度17m/min,1#干燥区温度178℃,热拉伸区温度230℃,2#干燥区温度130℃,热定型区温度216℃;1#张力架与2#张力架之间(1#浸胶槽)牵伸率100%,2#张力架与3#张力架之间(1#干燥干燥和拉伸区)牵伸率100.2%,3#张力架与4#张力架之间(2#干燥区)牵伸率99.0%,4#张力架与5#张力架之间(烘干热定型区)牵伸率97.5%。
3、采用的浸胶配方与实例/1浸胶配方相同。
4、实施例3产品质量指标:
实施例4:耐高温EG-400型
1、材料选择及捻织工艺见下表:
2、采用双浴法浸胶工艺路线进行浸胶,其浸胶工艺为:浸胶速度12m/min,1#干燥区温度178℃,热拉伸区温度232℃,2#干燥区温度130℃,热定型区温度216℃;1#张力架与2#张力架之间(1#浸胶槽)牵伸率100%,2#张力架与3#张力架之间(1#干燥干燥和拉伸区)牵伸率100.2%,3#张力架与4#张力架之间(2#干燥区)牵伸率99.0%,4#张力架与5#张力架之间(烘干热定型区)牵伸率97.5%。
3、采用的浸胶配方与实例/1浸胶配方相同。
4、实施例3产品质量指标:
在上述实施例中,对本发明的最佳实施方式做了描述,很显然,在本发明的发明构思下,仍可做出很多变化,在此,应该说明,在本发明的发明构思下所做出的任何改变都将落入本发明的保护范围内。

Claims (10)

1.一种耐热输送带用耐高温型浸胶帆布的生产方法,其特征是:包括浸胶步骤,所述浸胶为双浴法浸胶,所述双浴法浸胶包括预浸胶工艺和二次浸胶工艺。
2.根据权利要求1所述的耐热输送带用耐高温型浸胶帆布的生产方法,其特征是:所述的预浸胶工艺流程为:坯布导开、1#张力架、1#浸胶槽浸胶、2#张力架、1#干燥区烘干、热拉伸区、3#张力架。
3.根据权利要求2所述的耐热输送带用耐高温型浸胶帆布的生产方法,其特征是:所述的二次浸胶工艺流程为:承接3#张力架,然后经2#浸胶槽浸胶、2#干燥区烘干、4#张力架、烘干热定型区(拉幅)、5#张力架。
4.根据权利要求2所述的耐热输送带用耐高温型浸胶帆布的生产方法,其特征是:所述双浴法浸胶工艺条件为:浸胶速度10~35m/min,1#干燥区温度175±15℃,热拉伸区温度230±15℃,
2#干燥区温度130±15℃,恢复区温度215±15℃;
1#张力架与2#张力架之间(即1#浸胶槽段)牵伸率100±1.5%,
2#张力架与3#张力架之间(即1#干燥区和热拉伸区)牵伸率100±4.5%,
3#张力架与4#张力架之间(即2#干燥区)牵伸率99.0±2.5%,
4#张力架与5#张力架之间(即烘干热定型区)牵伸率97.5±2.5%。
5.根据权利要求1所述的耐热输送带用耐高温型浸胶帆布的生产方法,其特征是:预浸工艺用的预浸胶液的制备:所述预浸液是用端基封闭了的异氰酸酯水分散体浸渍液,预浸液浸胶配方含量为:脱盐水为94±4%,异氰酸酯5±2%,环氧树脂1±0.5%。
6.根据权利要求1所述的耐热输送带用耐高温型浸胶帆布的生产方法,其特征是:二次浸胶工艺用的二浸液的制备:二浸液采用常规间苯二酚-甲醛为主的水基粘合体系RFL液基础上,在配方中添加了适量的异氰酸酯和适量的天然胶乳;具体配方为:软化水1444±7.22㎏、烧碱3.0±0.009㎏、间苯二酚50±0.25㎏、甲醛75±0.375㎏(浓度37%)、氨水40±0.2㎏(浓度28%)、丁吡胶乳1170±5.85㎏、天然胶乳60~150㎏、异氰酸酯20~60㎏。
7.根据权利要求1所述的耐热输送带用耐高温型浸胶帆布的生产方法,其特征是:在进行浸胶步骤之前,还包括织布步骤:采用平纹、双经平纹或两上两下断斜纹方式编织,所述经线密度范围为110根/10cm~220根/10cm,纬线密度范围为25根/10cm~65根/10cm。
8.根据权利要求1所述的耐热输送带用耐高温型浸胶帆布的生产方法,其特征是:在二次浸胶工艺处理后,还进行卷取、包装,最终形成成品。
9.根据权利要求1所述的耐热输送带用耐高温型浸胶帆布的生产方法,其特征是:在二次浸胶工艺后,还进行卷曲、包装,最终形成成品。
10.根据权利要求9所述的耐热输送带用耐高温型浸胶帆布的生产方法,其特征是:所述产品的性能指标为:200℃、60分钟的干热收缩率径向为4.1~4.3%,纬向为0;150℃、30分钟的干热收缩率径向为0.8~0.9%,纬向为0,断裂强度径向为201-520N/mm,纬向为80~105N/mm,粘合强度径向和纬向均为11.0-14.0 N/mm。
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CN108867076A (zh) * 2017-05-10 2018-11-23 台州宏元工艺有限公司 一种工业帆布的生产工艺
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