CN112477158A - 一种压延工艺生产金属橡胶复合板材的方法 - Google Patents

一种压延工艺生产金属橡胶复合板材的方法 Download PDF

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CN112477158A
CN112477158A CN202011109280.1A CN202011109280A CN112477158A CN 112477158 A CN112477158 A CN 112477158A CN 202011109280 A CN202011109280 A CN 202011109280A CN 112477158 A CN112477158 A CN 112477158A
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李辉
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Jiangmen Teamful Sealing Technology Co ltd
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Abstract

本发明公开了一种压延工艺生产金属橡胶复合板材的方法，属于密封材料技术领域。包括步骤：将金属基材加热，加热后利用等离子机对金属基材表面进行清洁处理；橡胶进行混炼；将混炼后的橡胶压片；压片后的橡胶与金属基材粘合，得金属橡胶复合板材；将金属橡胶复合板材进行硫化；硫化后的金属橡胶复合板材其表面附上一层表面防粘层；表面防粘层的材料为聚四氟乙烯、蜡、硅油、淀粉、石墨中的至少一种。本发明利用压延工艺生产密封用金属橡胶复合板材；能够有效避免生产过程中VOCs的产生；力学性能良好，耐候性强，抗脱落性高，能在长时间能保持密封性能。

Description

一种压延工艺生产金属橡胶复合板材的方法
技术领域
本发明涉及属于密封材料领域，具体涉及一种压延工艺生产金属橡胶复合板材的方法。
背景技术
金属橡胶发泡复合板材是做密封材料不可缺少的材料，密封是防止流体或固体颗粒从相邻结合面间泄露，以及防止外界杂质侵入机器设备内部的零部件或措施，可分为静密封和动密封。其中，静密封是指密封部位没有相对运动，用于固定件的密封。
目前大部分金属橡胶复合板材的生产大多使用淋涂胶法、辊涂胶法或刮涂法生产；但这类生产方法都需要用到大量溶剂；生产时会产生大量的VOCs(挥发性有机物)；大量的VOCs会严重污染环境和造成生产材料的浪费；同时现有方法制备的金属橡胶复合板材的局限性，无法制备厚制品。
发明内容
本发明针对上述现有技术存在的问题，提供一种压延工艺生产金属橡胶复合板材的方法，解决生产过程中出现大量VOCs的问题以及原工艺不能制造厚制品的局限性。
为实现本发明目的，通过以下技术方案予以实现：
一种压延工艺生产金属橡胶复合板材的方法，包括以下步骤：
(1)金属基材表面处理：将金属基材加热，加热后利用等离子机对金属基材表面进行清洁处理；
(2)橡胶混炼：橡胶进行混炼；
(3)压片粘合：将混炼后的橡胶压片；压片后的橡胶与金属基材粘合；得金属橡胶复合板材；
(4)硫化：将金属橡胶复合板材进行硫化；
(5)防粘表面处理：硫化后的金属橡胶复合板材其表面附上一层表面防粘层；表面防粘层的材料为聚四氟乙烯、蜡、硅油、淀粉、石墨中的至少一种。
优选地，其特征在于：所述步骤(1)中，金属基材的加热温度为160-180℃，加热时间为1-10min；金属基材的厚度为0.14-0.4mm。
优选地，所述步骤(2)中，混炼的压力范围为0.4-0.7mpa，混炼时间为10-20分钟；混合温度为100-150℃；转速为24-30r/min。
进一步优选地，混炼时两个转子的转速差≥4r/min。
优选地，所述步骤(3)中，橡胶的压片温度为40-60℃，压力为0.2-0.3Mpa，厚度为0.6-1.2mm。
优选地，所述步骤(3)中，橡胶和金属基材使用酚醛树脂粘合剂贴合；粘合剂厚度为0.025-0.035mm。
进一步优选地，所述酚醛树脂粘合剂为PS1066。
优选地，所述步骤(4)中，硫化温度为140-180℃，硫化时间为2-10min。
优选地，所述步骤(5)中，表面防粘层的厚度为0.02-0.05mm。
优选地，步骤(2)中所述橡胶以质量分计算包括以下组分：
Figure BDA0002728057640000031
本发明利用压延工艺生产密封用金属橡胶复合板材；能够有效避免生产过程中VOCs的产生；其产品的力学性能良好，耐候性强，抗脱落性高，能在长时间能保持密封性能；同时还能保持较高的厚度。
具体实施方式
下面具体实施例对本发明作进一步说明，以使本领域技术人员可以更好的理解本发明并能予以实施，但所举实施例不作为对本发明的限定。按照本领域的普通技术知识和惯用手段，在不脱离本发明上述基本技术思想前提下，对本发明上述结构做出的其它多种形式的修改、替换或变更，均应落在本发明的保护范围。
实施例一
本发明的橡胶材料按质量份计算包括以下成分：
Figure BDA0002728057640000041
本发明所用的金属基材厚度在0.4mm，为SPCC冷轧钢板，其他规格如表1所示。
表1金属基材标准
Figure BDA0002728057640000042
本发明制作方法包括以下步骤：
(1)金属基材表面处理：将金属基材先经过加热烘道进行加热，其加热温度为180℃，加热时间为1min；加热后利用等离子机对金属基材表面进行清洁处理。
(2)橡胶混炼：根据上方的配比将橡胶的各组分进行混炼，其中前转子转速为30r/min，后转子转速为24.5r/min；上顶栓压力为0.7mpa，混炼时间为10分钟；混合温度为100℃。
(3)压片粘合：混炼后的橡胶通过挤出机连续供料给四辊橡胶压延机压片，压片温度为60℃，压力为0.2Mpa，厚度为0.6mm；宽度为899mm；压片后的橡胶利用酚醛树脂类粘合剂PS1066与金属基材粘合，粘合剂厚度为0.025mm。保持粘合后金属基材和橡胶的表面光滑平整。
(4)硫化：硫化温度为180℃，硫化时间为10min；硫化时采用硫化烘道进行常压硫化。
(5)防粘表面处理：经过硫化后的金属橡胶复合板材通过辊涂或者喷涂的方式在其表面附上一层表面防粘层；表面防粘层的厚度为0.05mm；表面防粘层的材料为聚四氟乙烯。
(6)成品：防粘表面处理后即为成品，成品进行性能测试，结果如表2所示。
实施例二
本发明的橡胶材料按质量份计算包括以下成分：
Figure BDA0002728057640000051
Figure BDA0002728057640000061
本发明所用的金属基材厚度为0.14mm，为SPCC冷轧钢板，其他规格如表1所示。
本发明制作方法包括以下步骤：
(1)金属基材表面处理：将金属基材先经过加热烘道进行加热，其加热温度为160℃，加热时间为10min；加热后利用等离子机对金属基材表面进行清洁处理。
(2)橡胶混炼：根据上方的配比将橡胶的各组分进行混炼，其中前转子转速为30r/min，后转子转速为24.5r/min；上顶栓压力为0.4mpa，混炼时间为20分钟；混合温度为150℃。
(3)压片粘合：混炼后的橡胶通过挤出机连续供料给四辊橡胶压延机压片，压片温度为40℃，压力为0.3Mpa，厚度为1.2mm；宽度为899mm；压片后的橡胶利用酚醛树脂类粘合剂PS1066与金属基材粘合，粘合剂厚度为0.035mm。保持粘合后金属基材和橡胶的表面光滑平整。
(4)硫化：硫化温度为140℃，硫化时间为2min；硫化时采用硫化烘道进行常压硫化。
(5)防粘表面处理：经过硫化后的金属橡胶复合板材通过辊涂或者喷涂的方式在其表面附上一层表面防粘层；表面防粘层的厚度为0.02mm；表面防粘层的材料为硅油。
(6)成品：防粘表面处理后即为成品，成品进行性能测试，结果如表2所示。
实施例三
本发明的橡胶材料按质量份计算包括以下成分：
Figure BDA0002728057640000071
本发明所用的金属基材厚度为0.4mm，为SPCC冷轧钢板，其他规格如表1所示。
本发明制作方法包括以下步骤：
(1)金属基材表面处理：将金属基材先经过加热烘道进行加热，其加热温度为160-180℃，加热时间为1-10min；加热后利用等离子机对金属基材表面进行清洁处理。
(2)橡胶混炼：根据上方的配比将橡胶的各组分进行混炼，其中前转子转速为30r/min，后转子转速为24.5r/min；上顶栓压力为0.7mpa，混炼时间为20分钟；混合温度为110℃。
(3)压片粘合：混炼后的橡胶通过挤出机连续供料给四辊橡胶压延机压片，压片温度为60℃，压力为0.3Mpa，厚度为0.6mm；宽度为899mm；压片后的橡胶利用酚醛树脂类粘合剂PS1066与金属基材粘合，粘合剂厚度为0.03mm。保持粘合后金属基材和橡胶的表面光滑平整。
(4)硫化：硫化温度为180℃，硫化时间为4min；硫化时采用硫化烘道进行常压硫化。
(5)防粘表面处理：经过硫化后的金属橡胶复合板材通过辊涂或者喷涂的方式在其表面附上一层表面防粘层；表面防粘层的厚度为0.02mm；表面防粘层的材料为蜡。
(6)成品：防粘表面处理后即为成品，成品进行性能测试，结果如表2所示。
表2橡胶复合板材实验性能测试报告
Figure BDA0002728057640000081
Figure BDA0002728057640000091
由表2可知，本发明最终的成品的力学性能良好，耐候性强，抗脱落性高，能在长时间能保持密封性能；同时生产过程中不使用有机溶剂，杜绝了VOCs的生成。

Claims (10)

1.一种压延工艺生产金属橡胶复合板材的方法，其特征在于，包括以下步骤：
(1)金属基材表面处理：将金属基材加热，加热后利用等离子机对金属基材表面进行清洁处理；
(2)橡胶混炼：橡胶进行混炼；
(3)压片粘合：将混炼后的橡胶压片；压片后的橡胶与金属基材粘合；得金属橡胶复合板材；
(4)硫化：将金属橡胶复合板材进行硫化；
(5)防粘表面处理：硫化后的金属橡胶复合板材其表面附上一层表面防粘层；表面防粘层的材料为聚四氟乙烯、蜡、硅油、淀粉、石墨中的至少一种。
2.根据权利要求1所述的压延工艺生产金属橡胶复合板材的方法，其特征在于：所述步骤(1)中，金属基材的加热温度为160-180℃，加热时间为1-10min；金属基材的厚度为0.14-0.4mm。
3.根据权利要求1所述的压延工艺生产金属橡胶复合板材的方法，其特征在于：所述步骤(2)中，混炼的压力范围为0.4-0.7mpa，混炼时间为10-20分钟；混合温度为100-150℃；转速为24-30r/min。
4.根据权利要求3所述的压延工艺生产金属橡胶复合板材的方法，其特征在于：混炼时两个转子的转速差≥4r/min。
5.根据权利要求1所述的压延工艺生产金属橡胶复合板材的方法，其特征在于：所述步骤(3)中，橡胶的压片温度为40-60℃，压力为0.2-0.3Mpa，厚度为0.6-1.2mm。
6.根据权利要求1所述的压延工艺生产金属橡胶复合板材的方法，其特征在于：所述步骤(3)中，橡胶和金属基材使用酚醛树脂粘合剂贴合；粘合剂厚度为0.025-0.035mm。
7.根据权利要求6所述的压延工艺生产金属橡胶复合板材的方法，其特征在于：所述酚醛树脂粘合剂为PS1066。
8.根据权利要求1所述的压延工艺生产金属橡胶复合板材的方法，其特征在于：所述步骤(4)中，硫化温度为140-180℃，硫化时间为2-10min。
9.根据权利要求1所述的压延工艺生产金属橡胶复合板材的方法，其特征在于：所述步骤(5)中，表面防粘层的厚度为0.02-0.05mm。
10.根据权利要求1-9任一所述的压延工艺生产金属橡胶复合板材的方法，其特征在于：步骤(2)中所述橡胶以质量分计算包括以下组分：
Figure FDA0002728057630000021
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