CN106867645B - 一种含石墨烯的拉丝液及其制备方法 - Google Patents
一种含石墨烯的拉丝液及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种含石墨烯的拉丝液及其制备方法，属于金属加工技术领域。该拉丝液由下列重量比例的原料制成：石墨烯分散液0.5～10％，丙二醇1～5％，季戊四醇油酸酯1～3％，聚乙二醇200 0.5～5％，水溶性钛酸酯0.1～1％，三乙醇胺硼酸酯0.1～2％，甲基苯并三氮唑0.1～1％，OP‐10 0.1～5％，去离子水余量。本发明拉丝液中添加了石墨烯，具有优异润滑性和导热性，在金属丝拉制过程中，贴覆在金属丝表面的石墨烯，在金属丝变形过程中可压入其表面，增加表面完整性，有效抑制变形开裂或断丝现象，提高金属丝的变形能力，增强线材产品丝表面光亮度和抗腐蚀能力，可广泛用作锡合金、铜、铝等金属丝的拉丝液。
Description
技术领域
本发明公开了一种含石墨烯的拉丝液及其制备方法。属于金属加工技术领域。
背景技术
拉丝工艺是金属加工中一种常见工艺，是指金属线材在压力和拉力作用下强行通过磨具，获得所要求的截面积形状和尺寸的技术加工方法。常见的产品有铜丝、铝丝和锡合金丝。拉丝液是拉丝工艺中必不可少的辅助剂，它主要的作用是在金属丝拉拔过程中起到润滑作用，同时保护线材、模具，达到良好的拉丝效果，拉丝液的品质直接影响到拉丝产品效果，性能优良的拉丝液可起到保护模具，提高拉丝效率，提高线材产品的品质。
人们往往通过使用或添加特定的组分来提高拉丝液的润滑作用，以达到如上目的。如专利201510011056.1添加氰尿酸三聚氰胺，专利201410126717.0添加硅溶胶，专利201410126163.3通过使用环烷油和季戊四醇油酸酯作为基础油，并配以植酸和葡萄糖酸钠，提高拉丝液的润滑能力；专利201310493959.9、201310493753.6和201410433714.1添加的纳米氮化铝，专利201510011053.8添加的纳米二氧化钛，201410126274.5添加的纳米活性炭，专利201510011059.5添加的纳米石墨，均在一定程度上提高了拉丝液的润滑能力。
石墨烯是一种具有六角结构的二维材料，它的厚度大约为0.335nm，根据制备方式的不同而存在不同的起伏，通常在垂直方向的高度大约1nm左右，水平方向宽度大约10nm到25nm，因而石墨烯具有很好的贴覆性能，且具有优异的润滑作用。本发明拉丝液中添加的石墨烯在金属丝拉制过程中，石墨烯贴覆在金属丝表面，一方面显著提高金属丝表面的润滑性，减少金属碎屑的剥落，另一方面，金属丝在变形过程中石墨烯被压入金属表面，提高金属丝表面完整性，和抗开裂和断丝的能力，从而提高金属丝的变形能力，增强线材产品表面光亮度和抗腐蚀能力。可广泛用于锡合金、铜、铝等金属丝的拉制过程，特别适用于难拉拔的焊锡丝的制备。
石墨烯具有优异的导热性能，导热系数高达5300W/m，远高于碳纳米管和金刚石，本发明拉丝液中添加的石墨烯，有效提高拉丝液的整体导热性，使拉丝过程产生的热量迅速得到传递，避免拉丝液由于局部温度过高造成的变质，延长拉丝液的使用寿命。
发明内容
本发明公开的一种含石墨烯的拉丝液及其制备方法，所述拉丝液由下列重量比例的原料制成：石墨烯分散液0.5～10％，丙二醇1～5％，季戊四醇油酸酯1～3％，聚乙二醇200 0.5～5％，水溶性钛酸酯0.1～1％，三乙醇胺硼酸酯0.1～2％，甲基苯并三氮唑0.1～1％，OP‐10 0.1～5％，去离子水余量。
所述拉丝液的更优重量百分比组成为：石墨烯分散液1～5％，丙二醇2～3％，季戊四醇油酸酯1.5～2％，聚乙二醇200 0.5～2％，水溶性钛酸酯0.3～0.5％，三乙醇胺硼酸酯0.1～1％，甲基苯并三氮唑0.1～0.5％，OP‐10 0.1～1％，去离子水余量。
所述含石墨烯的拉丝液，为了使石墨烯能够更好的分散在拉丝液中，需要预先制备获得石墨烯分散液，而后将石墨烯分散液分散到拉丝液中。所述石墨烯分散液，由下列重量比例的原料组成：石墨烯0.5～10％，N‐甲基吡咯烷酮1～5％，聚乙烯吡咯烷酮2～6％，十六烷基三甲基溴化铵1～5％，硅烷偶联剂0.1～1％，去离子水余量。
所述石墨烯分散液由以下步骤制成：1)将N‐甲基吡咯烷酮、聚乙烯吡咯烷酮、十六烷基三甲基溴化铵、硅烷偶联剂、去离子水混合均匀，在50～60℃条件下充分溶解；2)将石墨烯加入溶解好的溶液中，用高速剪切机在10000～12000rpm转速下处理60min，即得石墨烯分散液。
本发明公开的一种含石墨烯的拉丝液，由以下步骤制成：1)将丙二醇、季戊四醇油酸酯、聚乙二醇200、水溶性钛酸酯、三乙醇胺硼酸酯、甲基苯并三氮唑、OP‐10、去离子水混合均匀，在70～80℃下充分溶解；2)将石墨烯分散液在800～1000rpm转速下边搅拌边缓缓加入溶解好的溶液中，搅拌45min即得拉丝液。
本发明所公开的一种含石墨烯的拉丝液，其优点在于：石墨烯了提高拉丝液的润滑性，减少对金属丝和拉丝模具的损耗。在金属丝拉制过程中，拉丝液中的石墨烯在金属丝通过磨具过程中，会贴覆在金属丝表面，提高金属丝表面的润滑性，并且在金属丝拉伸过程中，贴覆在表面的石墨烯对金属丝起到保护作用，石墨烯之间的润滑作用可提高金属丝表面的变形能力，有效避免金属屑的剥落和线材表面的开裂，提高线材产品表面光亮度和耐腐蚀性。另外，石墨烯有效提高了拉丝液的整体导热性，使拉丝过程产生的热量迅速得到传递，避免拉丝液由于局部温度过高造成的变质，延长拉丝液的使用寿命。
本发明所公开的一种含石墨烯的拉丝液，可用于但不限于在锡合金、铜、铝等金属丝的拉丝过程中使用。锡合金包括但不限于SnAg3.0Cu0.5、SnAg0.3Cu0.7、SnCu0.7、Sn63Pb37、SnBi58、SnBi30Cu0.5等。
附图说明
图1为显微镜(×200)下观察的石墨烯拉丝液生产的SnAg3.0Cu0.5锡丝；
图2为显微镜(×200)下观察的传统拉丝液生产的SnAg3.0Cu0.5锡丝。
具体实施例
实施例1：
拉丝液(各组分重量百分含量,％)
石墨烯分散液(各组分重量百分含量,％)
石墨烯分散液制备方法：1)将称量好的N‐甲基吡咯烷酮、聚乙烯吡咯烷酮、十六烷基三甲基溴化铵、硅烷偶联剂、去离子水置于容器中，混合均匀，在50～60℃条件下充分溶解；2)将石墨烯加入溶解好的溶液中，用高速剪切机在10000～12000rpm转速下处理60min，即得石墨烯分散液。
拉丝液制备方法：1)将称量好的丙二醇、季戊四醇油酸酯、聚乙二醇200、水溶性钛酸酯、三乙醇胺硼酸酯、甲基苯并三氮唑、OP‐10、去离子水置于容器中，混合均匀，在70～80℃下充分溶解；2)将石墨烯分散液在800～1000rpm转速下边搅拌边缓缓加入溶解好的溶液中，搅拌45min即得拉丝液。
制备的拉丝液可作为SnAg3.0Cu0.5、SnAg0.3Cu0.7、SnCu0.7、SnPb37等锡丝的拉丝液。该拉丝液在常温下可储存1年，换液周期达10个月，远长于传统拉丝液3个月的换液周期。相对于传统的拉丝液，在拉丝过程中，锡丝无金属屑剥落现象，表面无开裂情况，生产的锡丝产品表面平整、光亮。
本实施例所述拉丝液生产的直径为0.8mm的SnAg3.0Cu0.5锡丝，在200倍显微镜下观察锡丝表面，如图1所示。
实施例2：
拉丝液(各组分重量百分含量,％)
石墨烯分散液(各组分重量百分含量,％)
石墨烯分散液和拉丝液的制备方法同实施例1，所制备的拉丝液可作为SnAg3.0Cu0.5、SnAg0.3Cu0.7、SnCu0.7、SnPb37等锡丝的拉丝液。
实施例3：
拉丝液(各组分重量百分含量,％)
石墨烯分散液(各组分重量百分含量,％)
石墨烯分散液和拉丝液的制备方法同实施例1，所制备的拉丝液可作为SnAg3.0Cu0.5、SnAg0.3Cu0.7、SnCu0.7、SnPb37等锡丝的拉丝液。
实施例4：
拉丝液(各组分重量百分含量,％)
石墨烯分散液(各组分重量百分含量,％)
石墨烯分散液和拉丝液的制备方法同实施例1，所制备的拉丝液可作为SnBi58、SnBi30Cu0.5等锡丝的拉丝液。
实施例5：
石墨烯分散液(各组分重量百分含量,％)
石墨烯分散液和拉丝液的制备方法同实施例1，所制备的拉丝液可作为铜丝的拉丝液。
实施例6：
拉丝液(各组分重量百分含量,％)
石墨烯分散液(各组分重量百分含量,％)
石墨烯分散液和拉丝液的制备方法同实施例1，所制备的拉丝液可作为铜丝的拉丝液。
实施例7：
拉丝液(各组分重量百分含量,％)
石墨烯分散液(各组分重量百分含量,％)
石墨烯分散液和拉丝液的制备方法同实施例1，所制备的拉丝液可作为铝丝的拉丝液。
实施例8：
拉丝液(各组分重量百分含量,％)
石墨烯分散液(各组分重量百分含量,％)
石墨烯分散液和拉丝液的制备方法同实施例1，所制备的拉丝液可作为铝丝的拉丝液。
比较例1：
拉丝液(各组分重量百分含量,％)
本对比例为传统类型的拉丝液，制备方法：1)将称量好的丙二醇、季戊四醇油酸酯、聚乙二醇200、水溶性钛酸酯、三乙醇胺硼酸酯、甲基苯并三氮唑、OP‐10、N‐甲基吡咯烷酮、聚乙烯吡咯烷酮、十六烷基三甲基溴化铵、硅烷偶联剂和去离子水置于容器中，混合均匀，在70～80℃下充分溶解得到拉丝液。
用本对比例生产的直径为0.8mm的SnAg3.0Cu0.5锡丝，在200倍显微镜下观察锡丝表面，如图2所示。与实施例1中生产的锡丝比较，显然添加了石墨烯的拉丝液较传统拉丝液生产的锡丝表面更加平整、光亮。
Claims (5)
1.一种含石墨烯的拉丝液，其特征在于：所述拉丝液含有石墨烯组分；所述拉丝液的重量百分比组成为：石墨烯分散液0.5～10％，丙二醇1～5％，季戊四醇油酸酯1～3％，聚乙二醇200 0.5～5％，水溶性钛酸酯0.1～1％，三乙醇胺硼酸酯0.1～2％，甲基苯并三氮唑0.1～1％，OP-10 0.1～5％，去离子水余量。
2.根据权利要求1所述的含石墨烯的拉丝液，其特征在于，所述拉丝液的重量百分比组成为：石墨烯分散液1～5％，丙二醇2～3％，季戊四醇油酸酯1.5～2％，聚乙二醇200 0.5～2％，水溶性钛酸酯0.3～0.5％，三乙醇胺硼酸酯0.1～1％，甲基苯并三氮唑0.1～0.5％，OP-10 0.1～1％，去离子水余量。
3.根据权利要求1所述的含石墨烯的拉丝液，其特征在于：所述石墨烯分散液的重量百分比组成为：石墨烯0.5～10％，N-甲基吡咯烷酮1～5％，聚乙烯吡咯烷酮2～6％，十六烷基三甲基溴化铵1～5％，硅烷偶联剂0.1～1％，去离子水余量。
4.根据权利要求3所述的含石墨烯的拉丝液，其特征在于，所述石墨烯分散液由以下步骤制成：
(1)将N-甲基吡咯烷酮、聚乙烯吡咯烷酮、十六烷基三甲基溴化铵、硅烷偶联剂、去离子水混合均匀，在50～60℃条件下充分溶解；
(2)将石墨烯加入溶解好的溶液中，用高速剪切机在10000～12000rpm转速下处理60min，即得石墨烯分散液。
5.一种权利要求1-4任意一项所述的含石墨烯的拉丝液的制备方法，其特征在于，所述含石墨烯的拉丝液由以下步骤制成：
1)将丙二醇、季戊四醇油酸酯、聚乙二醇200、水溶性钛酸酯、三乙醇胺硼酸酯、甲基苯并三氮唑、OP-10、去离子水混合均匀，在70～80℃下充分溶解；
2)将石墨烯分散液在800～1000rpm转速下搅拌边缓缓加入溶解好的溶液中，搅拌45min即得拉丝液。
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| CN103992856A (zh) * | 2014-04-25 | 2014-08-20 | 蚌埠市时代电子有限公司 | 一种缓释型抗氧化高效拉丝油 |
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| CN103992856A (zh) * | 2014-04-25 | 2014-08-20 | 蚌埠市时代电子有限公司 | 一种缓释型抗氧化高效拉丝油 |
| CN104928000A (zh) * | 2015-07-03 | 2015-09-23 | 上海尤希路化学工业有限公司 | 多用途无积碳环保型水溶性拉拔润滑剂 |
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