CN106479290A - 一种磁力泵的内部防腐耐磨涂料及其制备方法 - Google Patents
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Abstract
本发明属于磁力泵的加工技术领域,具体涉及一种磁力泵的内部防腐耐磨涂料及其制备方法,由乙酸乙烯共聚乳液、棉花秸秆粉、腈纶浆粕、纳米氧化锌、环烷酸铅、改性超高分子量聚乙烯、氨基硫脲、硫酸氧钒、乙烯基三胺、石蜡烃、乳化硅油和碳化硼纤维为原料制成。本发明中通过对超高分子量聚乙烯改性,提高其与乳液的结合性,在通过添加环烷酸铅和硫酸氧钒与其他成分协同作用,能够在磁力泵内部形成均匀的薄膜,棉花秸秆粉和腈纶浆粕的使用,用于提高涂层的缓蚀性能,涂料在使用后使磁力泵内壁具有较强的耐磨性,改性后的超高分子量聚乙烯具有稳定的结构,增强泵体材料的耐腐蚀能力,有效保护泵体提高其使用寿命,降低了磁力泵部件的维修费用。
Description
技术领域
本发明属于磁力泵的加工技术领域,具体涉及一种磁力泵的内部防腐耐磨涂料及其制备方法。
背景技术
磁力泵广泛应用于石油、化工、制酸、制碱、冶炼、稀土、农药、染料、医药、造纸、电镀、电解、酸洗、无线电、化成箔、科研机构、国防工业等生产流程中输送腐蚀性液体,尤其适用于易燃、易爆、易挥发、有毒、强酸碱、有机容剂和贵重液体的输送,为了保证耐腐蚀磁力泵的耐腐蚀性,而磁力泵的实际使用环境比较恶劣,虽然磁力泵泵壳材料具有较好的耐酸碱等作用,但在内部无介质流动,但又处于恶劣环境中时,很容易出现泵体被腐蚀或生锈等问题,而磁力泵所输送介质难免会有颗粒性物质,因此,应当对磁力泵的耐磨性加强进行更进一步的研究。
发明内容
本发明的目的是针对现有的问题,提供了一种磁力泵的内部防腐耐磨涂料及其制备方法。
本发明是通过以下技术方案实现的:一种磁力泵的内部防腐耐磨涂料,由以下重量份的原料制成:乙酸乙烯共聚乳液100份,棉花秸秆粉25-30份,腈纶浆粕10-15份,纳米氧化锌6-10份,环烷酸铅4-7份,改性超高分子量聚乙烯25-28份,氨基硫脲2-5份,硫酸氧钒4-6份,乙烯基三胺3-6份,石蜡烃1-2份,乳化硅油2-7份,碳化硼纤维10-15份;
其中,所述改性超高分子量聚乙烯的改性方法为:将亚硫酸钠加入含有2%钛酸酯偶联剂的乙醇溶液中,在65-70℃的条件下,以2000-2200r/min的转速下搅拌15-20分钟,加入与乙醇溶液等量的氧化镁粉,在75℃的条件下恒温回流,收集沉淀,烘干得到粉末,将粉末与超高分子量聚乙烯混合后熔融,基础得到改性超高分子量聚乙烯。
作为对上述方案的进一步改进,所述超高分子量聚乙烯分子量为600万。
一种磁力泵的内部防腐耐磨涂料的制备方法,包括以下步骤:
(1)将棉花秸秆粉用质量浓度为8%的盐酸溶液浸泡1.5-2小时,取出后用去离子水冲洗干净,然后加入腈纶浆粕和纳米氧化锌放入球磨机中,球磨至细度为20-25μm,得到物料A;
(2)在乙酸乙烯共聚乳液中加入环烷酸铅、改性超高分子量聚乙烯、氨基硫脲、硫酸氧钒、乙烯基三胺和碳化硼纤维,在120-140℃的条件下保温搅拌3-4小时,降温至65-70℃后加入石蜡烃和乳化硅油,保温搅拌1.5-2小时,得到物料B;
(3)将物料B加入物料A中,在35-40℃的条件下,以60-80r/min的速度搅拌25-30分钟,即得。
作为对上述方案的进一步改进,在使用时,所述涂料的涂覆厚度为0.8-2.5mm。
本发明相比现有技术具有以下优点:本发明中通过对超高分子量聚乙烯改性,提高其与乳液的结合性,在通过添加环烷酸铅和硫酸氧钒与其他成分协同作用,能够在磁力泵内部形成均匀的薄膜,棉花秸秆粉和腈纶浆粕的使用,用于提高涂层的缓蚀性能,涂料在使用后使磁力泵内壁具有较强的耐磨性,改性后的超高分子量聚乙烯具有稳定的结构,明显增强泵体材料的耐腐蚀能力,有效保护泵体提高其使用寿命,降低了磁力泵部件的维修费用。
具体实施方式
实施例1
一种磁力泵的内部防腐耐磨涂料,由以下重量份的原料制成:乙酸乙烯共聚乳液100份,棉花秸秆粉25份,腈纶浆粕15份,纳米氧化锌8份,环烷酸铅5份,改性超高分子量聚乙烯25份,氨基硫脲5份,硫酸氧钒4份,乙烯基三胺5份,石蜡烃2份,乳化硅油6份,碳化硼纤维15份;
其中,所述改性超高分子量聚乙烯的改性方法为:将亚硫酸钠加入含有2%钛酸酯偶联剂的乙醇溶液中,在68℃的条件下,以2200r/min的转速下搅拌18分钟,加入与乙醇溶液等量的氧化镁粉,在75℃的条件下恒温回流,收集沉淀,烘干得到粉末,将粉末与超高分子量聚乙烯混合后熔融,基础得到改性超高分子量聚乙烯。
一种磁力泵的内部防腐耐磨涂料的制备方法,包括以下步骤:
(1)将棉花秸秆粉用质量浓度为8%的盐酸溶液浸泡1.8小时,取出后用去离子水冲洗干净,然后加入腈纶浆粕和纳米氧化锌放入球磨机中,球磨至细度为24μm,得到物料A;
(2)在乙酸乙烯共聚乳液中加入环烷酸铅、改性超高分子量聚乙烯、氨基硫脲、硫酸氧钒、乙烯基三胺和碳化硼纤维,在125℃的条件下保温搅拌4小时,降温至68℃后加入石蜡烃和乳化硅油,保温搅拌1.8小时,得到物料B;
(3)将物料B加入物料A中,在38℃的条件下,以65r/min的速度搅拌25-30分钟,即得。
在使用时,所述涂料的涂覆厚度为0.8-2.5mm。
实施例2
一种磁力泵的内部防腐耐磨涂料,由以下重量份的原料制成:乙酸乙烯共聚乳液100份,棉花秸秆粉30份,腈纶浆粕10份,纳米氧化锌6份,环烷酸铅4份,改性超高分子量聚乙烯26份,氨基硫脲5份,硫酸氧钒4份,乙烯基三胺5份,石蜡烃1份,乳化硅油5份,碳化硼纤维12份;
其中,所述改性超高分子量聚乙烯的改性方法为:将亚硫酸钠加入含有2%钛酸酯偶联剂的乙醇溶液中,在65℃的条件下,以2000r/min的转速下搅拌15分钟,加入与乙醇溶液等量的氧化镁粉,在75℃的条件下恒温回流,收集沉淀,烘干得到粉末,将粉末与超高分子量聚乙烯混合后熔融,基础得到改性超高分子量聚乙烯。
其制备方法与使用方法与实施例1相同。
实施例3
一种磁力泵的内部防腐耐磨涂料,由以下重量份的原料制成:乙酸乙烯共聚乳液100份,棉花秸秆粉28份,腈纶浆粕12份,纳米氧化锌10份,环烷酸铅4份,改性超高分子量聚乙烯28份,氨基硫脲5份,硫酸氧钒6份,乙烯基三胺5份,石蜡烃2份,乳化硅油2份,碳化硼纤维15份;
其中,所述改性超高分子量聚乙烯的改性方法为:将亚硫酸钠加入含有2%钛酸酯偶联剂的乙醇溶液中,在70℃的条件下,以2200r/min的转速下搅拌20分钟,加入与乙醇溶液等量的氧化镁粉,在75℃的条件下恒温回流,收集沉淀,烘干得到粉末,将粉末与超高分子量聚乙烯混合后熔融,基础得到改性超高分子量聚乙烯。
其制备方法与使用方法与实施例1相同。
设置实验对涂料的性能进行检测,以用于磁力泵的常规涂料为对照组,具体结果如下:
表1
组别 | 实施例1 | 实施例2 | 实施例3 | 对照组 |
涂层强度1.4mm厚(MPa) | 1.35 | 1.28 | 1.29 | 0.73 |
24h悬浮性(%) | 98 | 97 | 98 | 96 |
一次涂挂厚度(mm) | 0.4 | 0.4 | 0.4 | 0.3 |
质量磨损率(%) | 0.16 | 0.15 | 0.15 | 0.21 |
通过表1中数据可以看出,本发明中涂料强度和耐磨性有了明显提高,悬浮性和涂挂厚度与现有涂料基本相同,同时具有较强的耐酸碱性,增加了涂料的使用范围。
Claims (4)
1.一种磁力泵的内部防腐耐磨涂料,其特征在于,由以下重量份的原料制成:乙酸乙烯共聚乳液100份,棉花秸秆粉25-30份,腈纶浆粕10-15份,纳米氧化锌6-10份,环烷酸铅4-7份,改性超高分子量聚乙烯25-28份,氨基硫脲2-5份,硫酸氧钒4-6份,乙烯基三胺3-6份,石蜡烃1-2份,乳化硅油2-7份,碳化硼纤维10-15份;
其中,所述改性超高分子量聚乙烯的改性方法为:将亚硫酸钠加入含有2%钛酸酯偶联剂的乙醇溶液中,在65-70℃的条件下,以2000-2200r/min的转速下搅拌15-20分钟,加入与乙醇溶液等量的氧化镁粉,在75℃的条件下恒温回流,收集沉淀,烘干得到粉末,将粉末与超高分子量聚乙烯混合后熔融,基础得到改性超高分子量聚乙烯。
2.如权利要求1所述一种磁力泵的内部防腐耐磨涂料,其特征在于,所述超高分子量聚乙烯分子量为600万。
3.一种如权利要求1或2所述磁力泵的内部防腐耐磨涂料的制备方法,其特征在于,包括以下步骤:
将棉花秸秆粉用质量浓度为8%的盐酸溶液浸泡1.5-2小时,取出后用去离子水冲洗干净,然后加入腈纶浆粕和纳米氧化锌放入球磨机中,球磨至细度为20-25μm,得到物料A;
在乙酸乙烯共聚乳液中加入环烷酸铅、改性超高分子量聚乙烯、氨基硫脲、硫酸氧钒、乙烯基三胺和碳化硼纤维,在120-140℃的条件下保温搅拌3-4小时,降温至65-70℃后加入石蜡烃和乳化硅油,保温搅拌1.5-2小时,得到物料B;
将物料B加入物料A中,在35-40℃的条件下,以60-80r/min的速度搅拌25-30分钟,即得。
4.如权利要求1或2所述一种磁力泵的内部防腐耐磨涂料,其特征在于,在使用时,所述涂料的涂覆厚度为0.8-2.5mm。
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