CN108753195A - 耐高温输送带及其制备方法 - Google Patents

耐高温输送带及其制备方法 Download PDF

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CN108753195A
CN108753195A CN201810417505.6A CN201810417505A CN108753195A CN 108753195 A CN108753195 A CN 108753195A CN 201810417505 A CN201810417505 A CN 201810417505A CN 108753195 A CN108753195 A CN 108753195A
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钱万水
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Big Plastics Machinery Co Ltd Of Anhui Yue Er
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Abstract

本发明公开了一种耐高温输送带及其制备方法，其中，所述制备方法包括：1)基材的制备：将酚醛树脂、白胶、三氧化二锑、三乙醇胺、硼酸锌和氧化镁混合，制得混合胶；将聚酯帆布置于白胶中浸渍后烘干，制得基材；2)胶粘材料的制备：将聚四氟乙烯、粘土粉末、硅藻土粉末、丙烯酸丁酯和聚氯化铝混合，制得絮凝物M1；将橡胶、絮凝物M1、硬脂酸、过氧化二异丙苯、硫化剂和促进剂进行一次混炼，制得混炼物M2；向混炼物M2中加入石蜡、白炭黑和聚异丁烯进行二次混炼，制得胶粘材料；3)输送带的制备：将胶粘材料涂覆于基材的上下表面，制得耐高温输送带。实现了耐高温耐老化，具有更好的粘合性的效果。

Description

耐高温输送带及其制备方法
技术领域
本发明涉及输送带材料领域，具体地，涉及耐高温输送带及其制备方法。
背景技术
输送带往往由骨架和其表面的橡胶层组成，而输送带在生产中的使用极为广泛，并且其使用环境也较为恶劣。在使用过程中，往往会由于其使用环境较为恶劣等导致其极易出现老化等问题，不仅其表面橡胶层出现老化，且其骨架也会出现老化，导致整个输送带出现老化等问题，并造成输送带的损坏。
因此，提供一种能够有效防老化，在高温环境下依然具有良好的使用性能的耐高温输送带及其制备方法是本发明亟需解决的问题。
发明内容
针对上述现有技术，本发明的目的在于克服现有技术中输送带在使用过程中，往往会由于其使用环境较为恶劣等导致其极易出现老化等问题，不仅其表面橡胶层出现老化，且其骨架也会出现老化，导致整个输送带出现老化等问题，并造成输送带的损坏等问题，从而提供一种能够有效防老化，在高温环境下依然具有良好的使用性能的耐高温输送带及其制备方法。
为了实现上述目的，本发明提供了一种耐高温输送带的制备方法，其中，所述制备方法包括：
1)基材的制备：将酚醛树脂、白胶、三氧化二锑、三乙醇胺、硼酸锌和氧化镁混合，制得混合胶；将聚酯帆布置于白胶中浸渍后烘干，制得基材；
2)胶粘材料的制备：将聚四氟乙烯、粘土粉末、硅藻土粉末、丙烯酸丁酯和聚氯化铝混合，制得絮凝物M1；将橡胶、絮凝物M1、硬脂酸、过氧化二异丙苯、硫化剂和促进剂进行一次混炼，制得混炼物M2；向混炼物M2中加入石蜡、白炭黑和聚异丁烯进行二次混炼，制得胶粘材料；
3)输送带的制备：将胶粘材料涂覆于基材的上下表面，制得耐高温输送带。
本发明还提供了一种根据上述所述的制备方法制得的耐高温输送带。
通过上述技术方案，本发明将酚醛树脂、白胶、三氧化二锑、三乙醇胺、硼酸锌和氧化镁混合后，将聚酯帆布置于上述混合物中浸渍，制得基材，同时，将聚四氟乙烯、粘土粉末、硅藻土粉末、丙烯酸丁酯和聚氯化铝混合后，制得絮凝物，再将上述絮凝物与橡胶材料以及硬脂酸、过氧化二异丙苯、硫化剂和促进剂混合后进行一次混炼，再向其中加入石蜡、白炭黑和聚异丁烯进行二次混炼，制得耐高温耐老化的胶粘材料，而后将上述胶粘材料涂覆于基材上，使得通过上述材料制得的输送带能有效实现耐高温耐老化的性能。
本发明的其他特征和优点将在随后的具体实施方式部分予以详细说明。
具体实施方式
以下对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。
在本文中所披露的范围的端点和任何值都不限于该精确的范围或值，这些范围或值应当理解为包含接近这些范围或值的值。对于数值范围来说，各个范围的端点值之间、各个范围的端点值和单独的点值之间，以及单独的点值之间可以彼此组合而得到一个或多个新的数值范围，这些数值范围应被视为在本文中具体公开。
本发明提供了一种耐高温输送带的制备方法，其中，所述制备方法包括：
1)基材的制备：将酚醛树脂、白胶、三氧化二锑、三乙醇胺、硼酸锌和氧化镁混合，制得混合胶；将聚酯帆布置于白胶中浸渍后烘干，制得基材；
2)胶粘材料的制备：将聚四氟乙烯、粘土粉末、硅藻土粉末、丙烯酸丁酯和聚氯化铝混合，制得絮凝物M1；将橡胶、絮凝物M1、硬脂酸、过氧化二异丙苯、硫化剂和促进剂进行一次混炼，制得混炼物M2；向混炼物M2中加入石蜡、白炭黑和聚异丁烯进行二次混炼，制得胶粘材料；
3)输送带的制备：将胶粘材料涂覆于基材的上下表面，制得耐高温输送带。
本发明将酚醛树脂、白胶、三氧化二锑、三乙醇胺、硼酸锌和氧化镁混合后，将聚酯帆布置于上述混合物中浸渍，制得基材，同时，将聚四氟乙烯、粘土粉末、硅藻土粉末、丙烯酸丁酯和聚氯化铝混合后，制得絮凝物，再将上述絮凝物与橡胶材料以及硬脂酸、过氧化二异丙苯、硫化剂和促进剂混合后进行一次混炼，再向其中加入石蜡、白炭黑和聚异丁烯进行二次混炼，制得耐高温耐老化的胶粘材料，而后将上述胶粘材料涂覆于基材上，使得通过上述材料制得的输送带能有效实现耐高温耐老化的性能。
上述原料的用量可以在宽的范围内选择，例如，在本发明的一种优选的实施方式中，步骤1)中，相对于10重量份的所述酚醛树脂，所述白胶的用量为10-30重量份，所述三氧化二锑的用量为5-10重量份，所述三乙醇胺的用量为1-5重量份，所述硼酸锌的用量为5-10重量份，所述氧化镁的用量为1-5重量份。
在本发明的另一优选的实施方式中，步骤2)中，相对于10重量份的所述聚四氟乙烯，所述粘土粉末的用量为0.3-1重量份，所述硅藻土粉末的用量为1-3重量份，所述丙烯酸丁酯的用量为2-5重量份，所述聚氯化铝的用量为0.1-0.3重量份。
进一步优选的实施方式中，步骤2)中，相对于100重量份的所述橡胶，所述絮凝物M1的用量为20-30重量份，所述硬脂酸的用量为5-20重量份，所述过氧化二异丙苯的用量为1-5重量份，所述硫化剂的用量为3-10重量份，所述促进剂的用量为1-5重量份。
一种更为优选的实施方式中，步骤2)中，相对于100重量份的所述混炼物M2，所述石蜡的用量为10-20重量份，所述白炭黑的用量为5-15重量份，所述聚异丁烯的用量为0.5-2重量份。
所述橡胶可以按照实际需要进行选择，例如，一种优选的实施方式中，所述橡胶选自三元乙丙橡胶和/或丁苯橡胶。
进一步优选的实施方式中，步骤1)中，烘干温度为60-70℃。
在本发明的另一优选的实施方式中，步骤2)中，所述混合过程为置于温度为50-70℃的条件下反应4-8h；一次混炼的混炼时间为10-60min；二次混炼的混炼时间为5-20min。
为了使得制得的输送带使用效果更好且尽可能节省生产成本，步骤3)中，所述基材表面的所述胶粘材料的厚度为0.5-2mm。
本发明还提供了一种根据上述所述的制备方法制得的耐高温输送带。
以下将通过实施例对本发明进行详细描述。
制备例1
1)将10重量份的聚四氟乙烯、0.3重量份的粘土粉末、1重量份的硅藻土粉末、2重量份的丙烯酸丁酯和2重量份的聚氯化铝混合后置于温度为50℃的条件下反应4h，制得絮凝物M1；
2)将100重量份的三元乙丙橡胶、20重量份的步骤1)中制得的絮凝物M1、5重量份的硬脂酸、1重量份的过氧化二异丙苯、3重量份的硫化剂和1重量份的促进剂进行一次混炼10min，制得混炼物M2；
3)向100重量份的混炼物M2中加入10重量份的石蜡、5重量份的白炭黑和0.5重量份的聚异丁烯进行二次混炼5min，制得胶粘材料A1。
制备例2
1)将10重量份的聚四氟乙烯、1重量份的粘土粉末、3重量份的硅藻土粉末、5重量份的丙烯酸丁酯和5重量份的聚氯化铝混合后置于温度为70℃的条件下反应8h，制得絮凝物M1；
2)将100重量份的丁苯橡胶、30重量份的步骤1)中制得的絮凝物M1、20重量份的硬脂酸、5重量份的过氧化二异丙苯、10重量份的硫化剂和5重量份的促进剂进行一次混炼60min，制得混炼物M2；
3)向100重量份的混炼物M2中加入20重量份的石蜡、15重量份的白炭黑和2重量份的聚异丁烯进行二次混炼20min，制得胶粘材料A2。
制备例3
1)将10重量份的聚四氟乙烯、0.7重量份的粘土粉末、2重量份的硅藻土粉末、3重量份的丙烯酸丁酯和3重量份的聚氯化铝混合后置于温度为60℃的条件下反应6h，制得絮凝物M1；
2)将50重量份的三元乙丙橡胶和50重量份的丁苯橡胶、25重量份的步骤1)中制得的絮凝物M1、10重量份的硬脂酸、3重量份的过氧化二异丙苯、7重量份的硫化剂和3重量份的促进剂进行一次混炼30min，制得混炼物M2；
3)向100重量份的混炼物M2中加入15重量份的石蜡、10重量份的白炭黑和1重量份的聚异丁烯进行二次混炼10min，制得胶粘材料A3。
制备例4
按照制备例1的制备方法进行制备，不同的是，絮凝物M1的用量为5重量份，硬脂酸的用量为2重量份，过氧化二异丙苯的用量为0.5重量份，制得胶粘材料A4。
制备例5
按照制备例2的制备方法进行制备，不同的是，石蜡的用量为5重量份，白炭黑的用量为2重量份，制得胶粘材料A5。
制备例6
按照制备例3的制备方法进行制备，不同的是，将三元乙丙橡胶和丁苯橡胶均更换为硅橡胶，制得胶粘材料A6。
制备例7
将10重量份的酚醛树脂、10重量份的白胶、5重量份的三氧化二锑、1重量份的三乙醇胺、5重量份的硼酸锌和1重量份的氧化镁混合，制得混合胶；将聚酯帆布置于白胶中浸渍后置于温度为60℃的条件下烘干，制得基材A7。
制备例8
将10重量份的酚醛树脂、30重量份的白胶、10重量份的三氧化二锑、5重量份的三乙醇胺、10重量份的硼酸锌和5重量份的氧化镁混合，制得混合胶；将聚酯帆布置于白胶中浸渍后置于温度为70℃的条件下烘干，制得基材A8。
制备例9
将10重量份的酚醛树脂、20重量份的白胶、8重量份的三氧化二锑、3重量份的三乙醇胺、8重量份的硼酸锌和3重量份的氧化镁混合，制得混合胶；将聚酯帆布置于白胶中浸渍后置于温度为65℃的条件下烘干，制得基材A9。
对比例1
按照实施例1的制备方法进行制备，不同的是，步骤1)中不加入粘土粉末和硅藻土粉末，制得胶粘材料D1。
对比例2
按照实施例2的制备方法进行制备，不同的是，步骤2)中不加入硬脂酸和过氧化二异丙苯，制得胶粘材料D2。
对比例3
按照实施例3的制备方法进行制备，不同的是，不经过步骤1)，制得胶粘材料D3。
对比例4
未经任何处理的市售聚酯帆布D4。
实施例1
将A1涂覆于A7表面，涂覆厚度为0.5mm，制得耐高温输送带B1。
实施例2
将A2涂覆于A8表面，涂覆厚度为2mm，制得耐高温输送带B2。
实施例3
将A3涂覆于A9表面，涂覆厚度为1mm，制得耐高温输送带B3。
实施例4
将A4涂覆于A7表面，涂覆厚度为0.5mm，制得耐高温输送带B4。
实施例5
将A5涂覆于A8表面，涂覆厚度为2mm，制得耐高温输送带B5。
实施例6
将A6涂覆于A9表面，涂覆厚度为1mm，制得耐高温输送带B6。
对比例5
将A1涂覆于D4表面，涂覆厚度为0.5mm，制得输送带D5。
对比例6
将A4涂覆于D4表面，涂覆厚度为2mm，制得输送带D6。
对比例7
将D1涂覆于A7表面，涂覆厚度为1mm，制得输送带D7。
测试例
将上述A1-A6和D1-D3制成厚度为2mm的样片，按照GB/T1040检测其拉伸强度和断裂伸长率，再将上述样片各准备一份，分别置于温度为90℃和125℃的老化箱中老化48h后，检测其拉伸强度和断裂伸长率，得到的结果如表1所示。
将上述B1-B6和D5-D7裁成20mm宽，用电子拉力机检测胶粘材料和基材之间的粘合性能，并将上述材料置于温度为90℃的老化箱中老化48h后再次检测其粘合性能，得到的结果如表2所示。
表1
表2
以上详细描述了本发明的优选实施方式，但是，本发明并不限于上述实施方式中的具体细节，在本发明的技术构思范围内，可以对本发明的技术方案进行多种简单变型，这些简单变型均属于本发明的保护范围。
另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合，为了避免不必要的重复，本发明对各种可能的组合方式不再另行说明。
此外，本发明的各种不同的实施方式之间也可以进行任意组合，只要其不违背本发明的思想，其同样应当视为本发明所公开的内容。

Claims (10)

1.一种耐高温输送带的制备方法，其特征在于，所述制备方法包括：
1)基材的制备：将酚醛树脂、白胶、三氧化二锑、三乙醇胺、硼酸锌和氧化镁混合，制得混合胶；将聚酯帆布置于白胶中浸渍后烘干，制得基材；
2)胶粘材料的制备：将聚四氟乙烯、粘土粉末、硅藻土粉末、丙烯酸丁酯和聚氯化铝混合，制得絮凝物M1；将橡胶、絮凝物M1、硬脂酸、过氧化二异丙苯、硫化剂和促进剂进行一次混炼，制得混炼物M2；向混炼物M2中加入石蜡、白炭黑和聚异丁烯进行二次混炼，制得胶粘材料；
3)输送带的制备：将胶粘材料涂覆于基材的上下表面，制得耐高温输送带。
2.根据权利要求1所述的制备方法，其中，步骤1)中，相对于10重量份的所述酚醛树脂，所述白胶的用量为10-30重量份，所述三氧化二锑的用量为5-10重量份，所述三乙醇胺的用量为1-5重量份，所述硼酸锌的用量为5-10重量份，所述氧化镁的用量为1-5重量份。
3.根据权利要求1或2所述的制备方法，其中，步骤2)中，相对于10重量份的所述聚四氟乙烯，所述粘土粉末的用量为0.3-1重量份，所述硅藻土粉末的用量为1-3重量份，所述丙烯酸丁酯的用量为2-5重量份，所述聚氯化铝的用量为0.1-0.3重量份。
4.根据权利要求1或2所述的制备方法，其中，步骤2)中，相对于100重量份的所述橡胶，所述絮凝物M1的用量为20-30重量份，所述硬脂酸的用量为5-20重量份，所述过氧化二异丙苯的用量为1-5重量份，所述硫化剂的用量为3-10重量份，所述促进剂的用量为1-5重量份。
5.根据权利要求1或2所述的制备方法，其中，步骤2)中，相对于100重量份的所述混炼物M2，所述石蜡的用量为10-20重量份，所述白炭黑的用量为5-15重量份，所述聚异丁烯的用量为0.5-2重量份。
6.根据权利要求1或2所述的制备方法，其中，所述橡胶选自三元乙丙橡胶和/或丁苯橡胶。
7.根据权利要求1或2所述的制备方法，其中，步骤1)中，烘干温度为60-70℃。
8.根据权利要求1或2所述的制备方法，其中，步骤2)中，所述混合过程为置于温度为50-70℃的条件下反应4-8h；
一次混炼的混炼时间为10-60min；
二次混炼的混炼时间为5-20min。
9.根据权利要求1或2所述的制备方法，其中，步骤3)中，所述基材表面的所述胶粘材料的厚度为0.5-2mm。
10.一种根据权利要求1-9中任意一项所述的制备方法制得的耐高温输送带。
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CN1570262A (zh) * 2003-07-14 2005-01-26 贾剑珉 阻燃型工业帆布浸渍胶及其制作方法
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