CN106601408A - 一种高性能磁性材料 - Google Patents

一种高性能磁性材料 Download PDF

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CN106601408A
CN106601408A CN201611191277.2A CN201611191277A CN106601408A CN 106601408 A CN106601408 A CN 106601408A CN 201611191277 A CN201611191277 A CN 201611191277A CN 106601408 A CN106601408 A CN 106601408A
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magnetic material
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周国胜
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MAANSHAN QIJIN MAGNET CO Ltd
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Abstract

本发明属于磁性材料制备领域，具体涉及一种高性能磁性材料，由磁性材料与粘合剂混合制成，所述磁性材料由以下成分制成：氧化硼、氧化钕、氧化镧、石墨烯、膨润土、碳酸钡、碳酸锶、铁鳞、三氧化二铌和三氧化二钴混合物、腐植酸钾；所述粘合剂由以下成分制成：改性聚烯烃类树脂、环氧树脂、纳米绢云母、柠檬酸三丁酯、聚二甲基硅氧烷、羊毛脂、聚乙烯醇、香茅醇。本发明高性能磁性材料，具有很强的弹性和可拉伸性，耐高温性能好，增强了磁性，不易消磁，而且节能环保。

Description

一种高性能磁性材料
技术领域
本发明属于磁性材料领域，具体涉及一种高性能磁性材料。
背景技术
磁性材料，通常所说的磁性材料是指强磁性物质，是古老而用途十分广泛的功能材料，而物质的磁性早在3000年以前就被人们所认识和应用，例如中国古代用天然磁铁作为指南针。现代磁性材料已经广泛的用在我们的生活之中，例如将永磁材料用作马达，应用于变压器中的铁心材料，作为存储器使用的磁光盘，计算机用磁记录软盘等。大比特资讯上说，磁性材料与信息化、自动化、机电一体化、国防、国民经济的方方面面紧密相关。而通常认为，磁性材料是指由过度元素铁、钴、镍及其合金等能够直接或间接产生磁性的物质。磁性材料按磁化后去磁的难易可分为软磁性材料和硬磁性材料。磁化后容易去掉磁性的物质叫软磁性材料，不容易去磁的物质叫硬磁性材料。一般来讲软磁性材料剩磁较小，硬磁性材料剩磁较大。
随着磁性材料的广泛应用，越来越多的领域需要用到磁性材料，磁性材料的要求也就越来越高，但目前现有的磁性材料弹性和拉伸性很差，所用的磁性材料粘合剂性能无法很好的契合磁性材料性能的发挥，有些反而降低了磁性材料的某些性能。
发明内容
本发明的目的是针对现有的问题，提供了一种高性能磁性材料。
本发明是通过以下技术方案实现的：一种高性能磁性材料，由磁性材料与粘合剂混合制成，所述磁性材料按重量份计由以下成分制成：氧化硼4-6、氧化钕0.1-0.3、氧化镧0.1-0.3、石墨烯10-12、膨润土8-10、碳酸钡6-12、碳酸锶0.2-0.4、铁鳞16-18、三氧化二铌和三氧化二钴混合物1.2-1.4、腐植酸钾0.5-0.8；
所述粘合剂按重量份计由以下成分制成：改性聚烯烃类树脂6-8、环氧树脂42-55、纳米绢云母8.2-8.6、柠檬酸三丁酯3-5、聚二甲基硅氧烷1-3、羊毛脂0.6-0.8、聚乙烯醇2.2-2.5、香茅醇0.3-0.6。
进一步的，所述三氧化二钴与三氧化二铌混合物中三氧化二钴与三氧化二铌按3:1质量比例混合而成。
进一步的，所述铁鳞经过处理后使用：将铁鳞在温度为空气相对湿度为60%环境下放置2小时，初始温度为200℃，随后以10℃/10min的速度上升，直至温度达到270℃为止，然后保温。
进一步的，所述改性聚烯烃类树脂的制备方法为：将聚乙烯树脂与聚丙烯树脂按3:1的质量比例在174℃下均匀混合后，添加聚乙烯树脂质量1.15%的α-松油烯，在场强为420kv/m的电晕场中，空气压力为10MPa下，以600r/min转速搅拌35min，然后将温度调节至122℃，保温10min，然后冷却至室温，即得。
进一步的，所述纳米绢云母的粒径为32nm。
进一步的，所述环氧树脂含有3个环氧基团。
进一步的，所述高性能磁性材料的制备方法，包括以下步骤：
将磁性材料与粘合剂按1:9的质量比例均匀混合，在135℃下，以1200r/min转速搅拌38min，然后保温静置15min，降低温度至125℃，再添加粘合剂质量5.2%的固化剂，搅拌均匀后，进行浇铸，浇铸成型后，保温15小时，然后进行脱模，再调节温度至146℃，保温处理2小时，自然冷却至室温，即可。
进一步的，所述固化剂为二乙氨基丙胺、三乙烯四胺按3:1质量比例混合而成。
本发明相比现有技术具有以下优点：本发明高性能磁性材料，具有很强的弹性和可拉伸性，耐高温性能好，增强了磁性，不易消磁，而且节能环保，密度小、耐冲击强度大，可进行切割、钻孔、焊接、层压和压花纹等加工，而且使用时不会发生碎裂，易于加工成尺寸精度高，本发明采用的粘合剂能够使得磁性材料适应更宽的频率工作范围，工作环境使用温度可达260℃以上，对磁性材料表现出了极高的粘接强度，并具有良好的耐介质特性，能够符合磁性材料对高电阻率的要求，本发明采用的粘合剂固化收缩率低，固化后内部无残留内应力，能够避免使用时出现变形或断裂的情况发生，通过采用改性聚烯烃类树脂与其它成分之间的协同作用，能够使得磁性材料与粘合剂混合固化后，耐温变性、耐酸碱性和耐老化性都非常优异，通过本发明采用的磁性材料与配制的粘合剂提高了磁体的成型效率、成品率和磁性能，成分分散性好，应用领域更加广阔。
具体实施方式
实施例1
一种高性能磁性材料，由磁性材料与粘合剂混合制成，所述磁性材料按重量份计由以下成分制成：氧化硼4、氧化钕0.1、氧化镧0.1、石墨烯10、膨润土8、碳酸钡6、碳酸锶0.2、铁鳞16、三氧化二铌和三氧化二钴混合物1.2、腐植酸钾0.5；
所述粘合剂按重量份计由以下成分制成：改性聚烯烃类树脂6-8、环氧树脂42、纳米绢云母8.2、柠檬酸三丁酯3、聚二甲基硅氧烷1、羊毛脂0.6、聚乙烯醇2.2、香茅醇0.3。
实施例2
一种高性能磁性材料，由磁性材料与粘合剂混合制成，所述磁性材料按重量份计由以下成分制成：氧化硼6、氧化钕0.3、氧化镧0.3、石墨烯12、膨润土10、碳酸钡12、碳酸锶0.4、铁鳞18、三氧化二铌和三氧化二钴混合物1.4、腐植酸钾0.8；
所述粘合剂按重量份计由以下成分制成：改性聚烯烃类树脂8、环氧树脂55、纳米绢云母8.6、柠檬酸三丁酯5、聚二甲基硅氧烷3、羊毛脂0.8、聚乙烯醇2.5、香茅醇0.6。
实施例3
一种高性能磁性材料，由磁性材料与粘合剂混合制成，所述磁性材料按重量份计由以下成分制成：氧化硼5、氧化钕0.2、氧化镧0.2、石墨烯11、膨润土9、碳酸钡8、碳酸锶0.3、铁鳞17、三氧化二铌和三氧化二钴混合物1.3、腐植酸钾0.6；
所述粘合剂按重量份计由以下成分制成：改性聚烯烃类树脂7、环氧树脂46、纳米绢云母8.4、柠檬酸三丁酯4、聚二甲基硅氧烷2、羊毛脂0.7、聚乙烯醇2.3、香茅醇0.5。
以上实施例中：
所述三氧化二钴与三氧化二铌混合物中三氧化二钴与三氧化二铌按3:1质量比例混合而成。
所述铁鳞经过处理后使用：将铁鳞在温度为空气相对湿度为60%环境下放置2小时，初始温度为200℃，随后以10℃/10min的速度上升，直至温度达到270℃为止，然后保温。
所述改性聚烯烃类树脂的制备方法为：将聚乙烯树脂与聚丙烯树脂按3:1的质量比例在174℃下均匀混合后，添加聚乙烯树脂质量1.15%的α-松油烯，在场强为420kv/m的电晕场中，空气压力为10MPa下，以600r/min转速搅拌35min，然后将温度调节至122℃，保温10min，然后冷却至室温，即得。
所述纳米绢云母的粒径为32nm。
所述环氧树脂含有3个环氧基团。
所述高性能磁性材料的制备方法，包括以下步骤：
将磁性材料与粘合剂按1:9的质量比例均匀混合，在135℃下，以1200r/min转速搅拌38min，然后保温静置15min，降低温度至125℃，再添加粘合剂质量5.2%的固化剂，搅拌均匀后，进行浇铸，浇铸成型后，保温15小时，然后进行脱模，再调节温度至146℃，保温处理2小时，自然冷却至室温，即可。
所述固化剂为二乙氨基丙胺、三乙烯四胺按3:1质量比例混合而成。
对比例1：与实施例1区别仅在于磁性材料中不添加经过本发明处理的铁鳞。
对比例2：与实施例1区别仅在于磁性材料中不添加三氧化二铌和三氧化二钴混合物。
对比例3：与实施例1区别仅在于粘合剂采用普通环氧树脂粘合剂。
对本发明高性能磁性材料性能进行检测：
表1
拉伸强度MPa 剪切强度MPa
实施例1 37.2 15.9
实施例2 37.0 15.7
实施例3 37.1 15.8
对比例1 36.7 15.6
对比例2 36.5 15.5
对比例3 31.2 13.8
由表1可以看出，本发明高性能磁性材料抗拉强度和剪切强度都非常好。
对本发明高性能磁性材料磁性能测试（模具型腔加料高度为 38mm，压制成外径Ф30，内径Ф12的圆环）：
剩磁Br(mT) 矫顽力（kA/m） 内禀矫顽力（kA/m） 最大磁能积 (kJ/m3)
实施例1 398.6 236.2 241.4 29.4
实施例2 398.5 236.1 241.3 29.3
实施例3 398.4 236.0 241.2 29.2
对比例1 390.1 232.8 237.6 26.3
对比例2 391.1 233.8 238.6 27.3
对比例3 397.3 235.6 240.7 28.2
对照组 384.3 228.1 233.0 25.9
其中，对照组为磁性材料为MYF-32B牌号的永磁铁氧体磁粉；
由表2可以看出，本发明制备的高性能磁性材料磁性能优异。

Claims (8)

1.一种高性能磁性材料，其特征在于，由磁性材料与粘合剂混合制成，所述磁性材料按重量份计由以下成分制成：氧化硼4-6、氧化钕0.1-0.3、氧化镧0.1-0.3、石墨烯10-12、膨润土8-10、碳酸钡6-12、碳酸锶0.2-0.4、铁鳞16-18、三氧化二铌和三氧化二钴混合物1.2-1.4、腐植酸钾0.5-0.8；
所述粘合剂按重量份计由以下成分制成：改性聚烯烃类树脂6-8、环氧树脂42-55、纳米绢云母8.2-8.6、柠檬酸三丁酯3-5、聚二甲基硅氧烷1-3、羊毛脂0.6-0.8、聚乙烯醇2.2-2.5、香茅醇0.3-0.6。
2.根据权利要求1所述一种高性能磁性材料，其特征在于，所述三氧化二钴与三氧化二铌混合物中三氧化二钴与三氧化二铌按3:1质量比例混合而成。
3.根据权利要求1所述一种高性能磁性材料，其特征在于，所述铁鳞经过处理后使用：将铁鳞在温度为空气相对湿度为60%环境下放置2小时，初始温度为200℃，随后以10℃/10min的速度上升，直至温度达到270℃为止，然后保温。
4.根据权利要求1所述一种高性能磁性材料，其特征在于，所述改性聚烯烃类树脂的制备方法为：将聚乙烯树脂与聚丙烯树脂按3:1的质量比例在174℃下均匀混合后，添加聚乙烯树脂质量1.15%的α-松油烯，在场强为420kv/m的电晕场中，空气压力为10MPa下，以600r/min转速搅拌35min，然后将温度调节至122℃，保温10min，然后冷却至室温，即得。
5.根据权利要求1所述一种高性能磁性材料，其特征在于，所述纳米绢云母的粒径为32nm。
6.根据权利要求1所述的一种高性能磁性材料，其特征在于，所述环氧树脂含有3个环氧基团。
7.根据权利要求1所述的一种高性能磁性材料，其特征在于，所述高性能磁性材料的制备方法，包括以下步骤：
将磁性材料与粘合剂按1:9的质量比例均匀混合，在135℃下，以1200r/min转速搅拌38min，然后保温静置15min，降低温度至125℃，再添加粘合剂质量5.2%的固化剂，搅拌均匀后，进行浇铸，浇铸成型后，保温15小时，然后进行脱模，再调节温度至146℃，保温处理2小时，自然冷却至室温，即可。
8.根据权利要求7所述的一种高性能磁性材料，其特征在于，所述固化剂为二乙氨基丙胺、三乙烯四胺按3:1质量比例混合而成。
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