CN111073479A - 聚醚酮酮水性涂料在自行车刹车线或变速线上的应用 - Google Patents
聚醚酮酮水性涂料在自行车刹车线或变速线上的应用 Download PDFInfo
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Abstract
本发明属于聚醚酮酮应用技术领域,具体的涉及一种聚醚酮酮水性涂料在自行车刹车线或变速线上的应用。所采用的聚醚酮酮树脂水性涂料由非晶态聚醚酮酮、FEP乳液、自润滑填料、耐磨填料、表面活性剂、助溶剂、颜料、流平剂、消泡剂和水组成。该聚醚酮酮水性涂料应用于自行车刹车线或变速线上,使自行车刹车线或变速线摩擦系数低、耐磨性好、强度高、有一定的自润滑性,能够提升自行车刹车线和变速线的使用寿命,维持自行车的良好运转。
Description
技术领域
本发明属于聚醚酮酮应用技术领域,具体的涉及一种聚醚酮酮水性涂料在自行车刹车线或变速线上的应用。
背景技术
自行车以脚踏踏板为动力,是一种绿色环保的交通工具。我国是人口大国,是世界上拥有自行车最多的国家。刹车线的功能良好运转、顺滑以及摩擦系数小是保证骑乘安全的重要因素。
目前常见的刹车线为金属丝外包裹塑胶管或与特氟龙材料结合。常见的金属丝包裹塑胶管,由于塑胶管和金属线之间接触而非紧固结合,塑胶管和钢丝之间接触面积大,塑胶管材料一般为常见的通用塑料,耐磨性差,长时间接触塑胶管损坏,使用寿命短,且金属线与塑胶管或塑胶管与自行车其他位置接触,缺少自润滑作用,需要定期涂抹润滑油进行维护保养,润滑油的大量使用,污染环境。氟树脂相关涂层虽然有很好的自润滑效果,但是本身涂层比较软,存在耐磨性差,与金属结合不良等弊端,应用到自行车刹车线或变速线上时会有一定的局限性。
因此,针对自行车刹车线或变速线等动设备的应用,需要开发一种有一定自润滑特性、摩擦系数小、结合力高以及耐磨性好的涂层。
发明内容
本发明的目的是克服现有技术的不足,提供一种聚醚酮酮水性涂料在自行车刹车线或变速线上的应用。该聚醚酮酮水性涂料应用于自行车刹车线或变速线上,使自行车刹车线或变速线摩擦系数低、耐磨性好、强度高、有一定的自润滑性,能够提升自行车刹车线和变速线的使用寿命,维持自行车的良好运转。
本发明所述的聚醚酮酮水性涂料在自行车刹车线或变速线上的应用,由以下步骤组成:
(1)制备聚醚酮酮树脂水性涂料
以质量分数计,聚醚酮酮树脂水性涂料原料组成如下:
(2)在金属丝上涂覆聚醚酮酮树脂水性涂料,于350-360℃下进行熔融流平,冷却后即得聚醚酮酮树脂包覆的自行车刹车线或变速线。
其中:
非晶态聚醚酮酮是将非晶态聚醚酮酮树脂研磨成D90=10-15um的非晶态聚醚酮酮粉料,非晶态聚醚酮酮树脂特性粘度值为0.6-0.7dL/g,熔融指数测试:150g/10min<MFR<200g/10min。
所选的FEP乳液固含量为55%-65%。
自润滑填料为石墨微粉或二硫化钼中的一种,粒径D90=10-20um。
耐磨填料为金刚石微粉或碳化硅微粉中的一中,粒径D90=10-20um。
表面活性剂为非离子型表面活性剂,优选陶氏化学生产的Triton-X100。
助溶剂为异丙醇。
流平剂为改性聚硅氧烷,优选AFCONA3580。
消泡剂为有机硅类消泡剂,优选AFCONA2524。
颜料为炭黑,优选卡博特660R。
作为一个优选的技术方案,本发明所述的聚醚酮酮水性涂料在自行车刹车线或变速线上的应用,由以下步骤组成:
(1)将称量好的水、表面活性剂、助溶剂和FEP乳液放入篮式砂磨机中搅拌30-60min,然后向篮式砂磨机中添加称量好的非晶态聚醚酮酮细粉、颜料、耐磨填料和自润滑填料,调整篮式砂磨机转速为1000-1500r/min,搅拌1-1.5h,最后向溶液体系中按比例添加消泡剂和流平剂,调整转速为300-500r/min进行搅拌,最后取出溶液,用200目筛网进行过滤,备用。
(2)将金属丝除油除酯后,对金属丝表面进行打砂或抛丸处理,然后将金属丝在120-150℃温度下预热5-15min,用溶液喷枪喷涂溶液,在烘箱内于120-150℃下进行烘干,然后升温到350-360℃进行熔融流平,冷却后即得聚醚酮酮树脂包覆的自行车刹车线或变速线。
溶液喷枪的气压为0.4-0.6MPa,喷涂枪距为10-15cm。
聚醚酮酮(PEKK)作为一种高性能热塑性工程塑料,由于其本身结构特点,苯环结构作为树脂的骨架结构,保证了聚醚酮酮树脂有着良好的机械强度和抗蠕变性,目前将聚醚酮酮树脂应用到涂层中,优化了涂层诸多性能,如与基材优异的结合性、良好的耐化学性、良好的耐刮擦性等;另加入氟树脂、石墨微粉或利用两种材料的优势,对涂层进行改良,制备出耐磨、自润滑、高结合的涂层,可以很好的应用到自行车刹车线或变速线上。
聚醚酮酮作为特种工程塑料,材料本身强度、耐磨性在所有塑料中处于塑料金字塔顶端,此外聚醚酮酮树脂自身有一定的自润滑特性,与金属材料有特别强的结合力,通过配方改性可以将涂层的耐磨性、自润滑性、使用寿命等提升到极致,很好的解决现有刹车线存在的问题。
本发明所述的聚醚酮酮水性涂料在自行车刹车线或变速线上的应用,所述的涂覆在金属丝上的涂层其优势在于借助非晶态聚醚酮酮结构中的醚键以及酮基等含氧基团对金属有极其强的亲和性,可以保证非晶态聚醚酮酮树脂和金属基材紧密结合在一起,且非晶态聚醚酮酮树脂以苯环连接作为骨架结构,保证了材料涂层的强度、抗蠕变性和耐磨性。另外选择非结晶性的聚醚酮酮树脂,确保了涂层在使用过程中不会出现涂层结晶脆化等结晶性涂层的通病。在树脂基体中选择添加石墨微粉或二硫化钼等材料,用于提升材料的自润滑性能;添加金刚石微粉或碳化硅微粉等高硬度材料,用于提升材料的硬度,以提升材料的耐磨特性,添加FEP乳液,FEP等相关氟材料可增加涂层的自润滑特性。
本发明与现有技术相比,具有以下有益效果:
(1)本发明所述的聚醚酮酮水性涂料在自行车刹车线或变速线上的应用,摩擦系数低、耐磨性好、强度高、有一定自润滑性,达到无油润滑、降低噪音、减少摩擦系数,提升使用自行车刹车线和变速线寿命的目的,维持自行车的良好运转。
(2)本发明所述的聚醚酮酮水性涂料在自行车刹车线或变速线上的应用,解决了传统塑胶包裹金属线或特氟龙涂覆金属丝暴露出摩擦系数大、耐磨性差、使用寿命短和稳定性差等问题。
(3)本发明所述的聚醚酮酮水性涂料在自行车刹车线或变速线上的应用,施工工艺与相关的氟树脂涂料相比,采用静电喷涂的工艺,节能环保,符合当前健康环保的政策要求;施工比较简单、单层涂覆模式,无需底漆、中漆、面漆等复杂的操作,工艺操作简单、科学合理以及适用性更强。
(4)本发明所述的聚醚酮酮水性涂料在自行车刹车线或变速线上的应用,原料聚醚酮酮树脂具有高强度、高结合、耐摩擦的特点,选择非结晶聚醚酮酮树脂既保证了涂层原有的强度,同时保证了涂层在使用过程中不会出现涂层变脆等问题,延长涂层的使用寿命;通过添加自润滑材料和耐磨材料,在原聚醚酮酮树脂耐磨、摩擦系数低的基础上,进一步优化涂层的自润滑性和耐磨性,更好的切合自行车刹车线和变速线的使用。
具体实施方式
以下结合实施例对本发明作进一步描述。
实施例1
本实施例1所述的聚醚酮酮水性涂料在自行车刹车线或变速线上的应用,由以下步骤组成:
(1)取非晶态聚醚酮酮树脂进行磨粉,粒径为D90=10um,非晶态聚醚酮酮树脂特性粘度值为0.6dL/g,熔融指数测试MFR为160g/10min,留作备用,将称量好的809g去离子水、60g表面活性剂、60g异丙醇和240gFEP乳液放入篮式砂磨机中搅拌40min,然后向篮式砂磨机中添加称量好的500g聚醚酮酮细粉、20g金刚石微粉、15g炭黑和151g二硫化钼,调整篮式砂磨机转速为1500r/min,搅拌1h,最后向溶液体系中按比例添加20g消泡剂和20g流平剂,调整转速500r/min进行搅拌,最后取出溶液,用200目筛网进行过滤,备用。其中:
金刚石微粉粒径D90=10um。
二硫化钼粒径D90=10um。
表面活性剂为陶氏化学生产的Triton-X100。
消泡剂为AFCONA2524。
流平剂AFCONA3580。
(2)将金属丝除油除酯后,对表面进行打砂处理,然后将金属丝在120℃条件下预热10min,用溶液喷枪喷涂溶液,溶液喷枪的气压为0.4MPa,枪距为10cm。在烘箱内于120℃下进行烘干,升温到350℃进行熔融流平,冷却后即得聚醚酮酮树脂包覆的自行车刹车线。
实施例2
本实施例2所述的聚醚酮酮水性涂料在自行车刹车线或变速线上的应用,由以下步骤组成:
(1)取非晶态聚醚酮酮树脂进行磨粉,粒径为D90=15um,非晶态聚醚酮酮树脂粘度值为特性粘度值为0.65dL/g,熔融指数测试MFR为170g/10min,留作备用,将称量好的924g去离子水、20g表面活性剂、160g异丙醇和220gFEP乳液放入篮式砂磨机中搅拌45min,然后向篮式砂磨机中添加称量好的460g聚醚酮酮细粉、20g金刚石微粉、11g炭黑和160g石墨微粉,调整篮式砂磨机转速为1300r/min,搅拌1.2h,最后向溶液体系中按比例添加20g消泡剂和20g流平剂,调整转速500r/min进行搅拌,最后取出溶液,用200目筛网进行过滤,备用。
其中:
金刚石微粉粒径D90=15um。
石墨微粉粒径D90=15um。
表面活性剂为陶氏化学生产的Triton-X100。
消泡剂为AFCONA2524。
流平剂AFCONA3580。
(2)将金属丝除油除酯后,将表面进行打砂处理,然后将金属丝在120℃条件下预热8min,用溶液喷枪喷涂溶液,溶液喷枪的气压为0.6MPa,枪距为15cm。在烘箱内于120℃下进行烘干,升温到350℃进行熔融流平,冷却后即得聚醚酮酮树脂包覆的自行车刹车线。
实施例3
本实施例3所述的聚醚酮酮水性涂料在自行车刹车线或变速线上的应用,由以下步骤组成:
(1)取非晶态聚醚酮酮树脂进行磨粉,粒径为D90=12um,非晶态聚醚酮酮树脂特性粘度值为0.7dL/g,熔融指数测试MFR为180g/10min,留作备用,将称量好的681g去离子水、100g表面活性剂、100g异丙醇和360gFEP乳液放入篮式砂磨机中搅拌40min,然后向篮式砂磨机中添加称量好的600g聚醚酮酮细粉、20g碳化硅微粉、11g炭黑和101g二硫化钼,调整篮式砂磨机转速为1500r/min,搅拌1h,最后向溶液体系中按比例添加20g消泡剂和20g流平剂,调整转速500r/min进行搅拌,最后取出溶液,用200目筛网进行过滤,备用。其中:
碳化硅微粉粒径D90=12um。
二硫化钼粒径D90=12um。
表面活性剂为陶氏化学生产的Triton-X100。
消泡剂为AFCONA2524。
流平剂AFCONA3580。
(2)将金属丝除油除酯后,对表面进行打砂处理,然后将金属丝在120℃条件下预热15min,用溶液喷枪喷涂溶液,溶液喷枪的气压为0.5MPa,枪距为13cm。在烘箱内于120℃下进行烘干,升温到360℃进行熔融流平,冷却后即得聚醚酮酮树脂包覆的自行车变速线。
对比例1
本对比例1所述的聚醚醚酮水性涂料在自行车刹车线或变速线上的应用,由以下步骤组成:
(1)取PEEK树脂进行磨粉,粒径为D90=12um,PEEK树脂特性粘度值为0.8dL/g,熔融指数测试MFR为70g/10min,留作备用,将称量好的682g去离子水、100g表面活性剂、100g异丙醇和360gFEP乳液放入篮式砂磨机中搅拌40min,然后向篮式砂磨机中添加称量好的600g聚醚醚酮细粉、20g碳化硅微粉、11g炭黑和100g二硫化钼,调整篮式砂磨机转速为1500r/min,搅拌1h,最后向溶液体系中按比例添加20g消泡剂和20g流平剂,调整转速500r/min进行搅拌,最后取出溶液,用200目筛网进行过滤,备用。其中:
碳化硅微粉粒径D90=12um。
二硫化钼粒径D90=12um。
表面活性剂为陶氏化学生产的Triton-X100。
消泡剂为AFCONA2524。
流平剂AFCONA3580。
(2)将金属丝除油除酯后,对表面进行处理,然后将金属丝在120℃条件下预热15min,用溶液喷枪喷涂溶液,溶液喷枪的气压为0.5MPa,枪距为13cm。在烘箱内于120℃下进行烘干,升温到400℃进行熔融流平,冷却后即得PEEK树脂包覆的自行车变速线。
对比例2
本对比例2所述的聚醚酮酮水性涂料在自行车刹车线或变速线上的应用,由以下步骤组成:
(1)取非晶态聚醚酮酮树脂进行磨粉,粒径为D90=15um,非晶态聚醚酮酮树脂粘度值为特性粘度值为0.65dL/g,熔融指数测试MFR为170g/10min,留作备用,将称量好的703g去离子水、100g表面活性剂、100g异丙醇放入篮式砂磨机中搅拌40min,然后向篮式砂磨机中添加称量好的800g聚醚酮酮细粉、20g碳化硅微粉、11g炭黑和100g二硫化钼,调整篮式砂磨机转速为1500r/min,搅拌1h,最后向溶液体系中按比例添加20g消泡剂和20g流平剂,调整转速500r/min进行搅拌,最后取出溶液,用200目筛网进行过滤,备用。其中:
碳化硅微粉粒径D90=10um。
二硫化钼粒径D90=10um。
表面活性剂为陶氏化学生产的Triton-X100。
消泡剂为AFCONA2524。
流平剂AFCONA3580。
(2)将金属丝除油除酯后,对表面进行处理,然后将金属丝在120℃条件下预热15min,用溶液喷枪喷涂溶液,溶液喷枪的气压为0.4MPa,枪距为10cm,在烘箱内120℃进行烘干,升温到350℃进行熔融流平,冷却后即得聚醚酮酮树脂包覆的自行车变速线。
取上述实施例1-3和对比例1-2中的粉体,分别进行性能测试,用摩擦系数测试仪测试材料的摩擦系数,评估材料的自润滑性,用旋转摩擦橡胶轮法测定涂层的耐磨性,用百格法进行涂层结合力测试,用圆棒缠绕和热冲击评估材料机械性能,结果如表1所示。
表1实施例1-3和对比例1-2性能测试结果
| 指标 | 实施例1 | 实施例2 | 实施例3 | 对比例1 | 对比例2 |
| 厚度/um | 54 | 49 | 47 | 55 | 53 |
| 摩擦系数 | 0.07 | 0.07 | 0.08 | 0.08 | 0.1 |
| 耐磨性g/100r | 32 | 33 | 31 | 33 | 27 |
| 附着力 | 0 | 0 | 1 | 1 | 0 |
| 圆棒缠绕 | 无开裂 | 无开裂 | 无开裂 | 有裂纹 | 无开裂 |
| 热冲击 | 无开裂 | 无开裂 | 无开裂 | 有裂纹 | 无开裂 |
Claims (8)
2.根据权利要求1所述的聚醚酮酮水性涂料在自行车刹车线或变速线上的应用,其特征在于:非晶态聚醚酮酮是将非晶态聚醚酮酮树脂研磨成D90=10-15um的非晶态聚醚酮酮粉料,非晶态聚醚酮酮树脂特性粘度值为0.6-0.7dL/g,熔融指数测试:200g/10min>MFR>150g/10min;所选的FEP乳液固含量为55%-65%。
3.根据权利要求1所述的聚醚酮酮水性涂料在自行车刹车线或变速线上的应用,其特征在于:自润滑填料为石墨微粉或二硫化钼中的一种,粒径D90=10-20um;耐磨材料为金刚石微粉或碳化硅微粉中的一中,粒径D90=10-20um。
4.根据权利要求1所述的聚醚酮酮水性涂料在自行车刹车线或变速线上的应用,其特征在于:表面活性剂为非离子型表面活性剂。
5.根据权利要求1所述的聚醚酮酮水性涂料在自行车刹车线或变速线上的应用,其特征在于:助溶剂为异丙醇。
6.根据权利要求1所述的聚醚酮酮水性涂料在自行车刹车线或变速线上的应用,其特征在于:流平剂为改性聚硅氧烷;消泡剂为有机硅类消泡剂;颜料为炭黑。
7.根据权利要求1所述的聚醚酮酮水性涂料在自行车刹车线或变速线上的应用,其特征在于:由以下步骤组成:
(1)将称量好的水、表面活性剂、助溶剂和FEP乳液放入篮式砂磨机中搅拌30-60min,然后向篮式砂磨机中添加称量好的非晶态聚醚酮酮细粉、颜料、耐磨填料和自润滑填料,调整篮式砂磨机转速为1000-1500r/min,搅拌1-1.5h,最后向溶液体系中按比例添加消泡剂和流平剂,调整转速300-500r/min进行搅拌,最后取出溶液,用200目筛网进行过滤,备用;
(2)将金属丝除油除酯后,对金属丝表面进行打砂或抛丸处理,然后将金属丝在120-150℃条件下预热5-15min,用溶液喷枪喷涂溶液,在烘箱内于120-150℃下进行烘干,然后升温到350-360℃进行熔融流平,冷却后即得聚醚酮酮树脂包覆的自行车刹车线或变速线。
8.根据权利要求1所述的聚醚酮酮水性涂料在自行车刹车线或变速线上的应用,其特征在于:溶液喷枪的气压为0.4-0.6MPa,枪距为10-15cm。
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| JP2023087722A (ja) * | 2021-12-14 | 2023-06-26 | 三井・ケマーズ フロロプロダクツ株式会社 | フッ素樹脂液体塗料組成物 |
| JP7765269B2 (ja) | 2021-12-14 | 2025-11-06 | 三井・ケマーズ フロロプロダクツ株式会社 | フッ素樹脂液体塗料組成物 |
| CN115491107A (zh) * | 2022-09-02 | 2022-12-20 | 上海寅汀高科技材料有限公司 | 一种耐磨耐高温的无氟涂层 |
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