CN112048099A - 工程塑料自润滑耐磨组合物及其应用 - Google Patents

工程塑料自润滑耐磨组合物及其应用 Download PDF

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CN112048099A
CN112048099A CN202010970264.5A CN202010970264A CN112048099A CN 112048099 A CN112048099 A CN 112048099A CN 202010970264 A CN202010970264 A CN 202010970264A CN 112048099 A CN112048099 A CN 112048099A
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parts
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engineering plastic
lanthanum
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宋子乾
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Guangdong Wanma Bearing Co ltd
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Abstract

本发明涉及工程塑料改性技术领域，具体公开一种工程塑料自润滑耐磨组合物及其应用，该组合物包含以下重量份组分：稀土化合物10～20重量份，石墨烯5～10重量份，锡青铜粉10～20重量份，二氧化硅50～60重量份，锌镁镧矿物10～20重量份，所述锌镁镧矿物含有锌、镁、硼、镧、硅化学元素成分。本发明的组合物可显著提高零部件磨损表面的硬度，从而提高零部件的抗磨性能。在零部件运转过程中，在塑料基料表层生成金属陶瓷晶体，并形成塑料陶瓷耐磨保护层。可在磨损部位生成金属陶瓷层，形成与零部件最匹配的金属陶瓷层，达到自动、自适应地原位修复磨损部位的效果，应用于工程塑料中，可使改性后的工程塑料的耐热性提高30℃～50℃，同时有效提高工程塑料的耐磨性能。

Description

工程塑料自润滑耐磨组合物及其应用
技术领域
本发明涉及工程塑料改性技术领域，尤其涉及一种工程塑料自润滑耐磨组合物及其应用。
背景技术
工程塑料轴承是以工程塑料为基料，通过注塑加工制成的，在注塑加工前，通常加入增强纤维和固体润滑脂对工程塑料进行改进，以提高其强度、耐热性和耐磨性等性能，然而效果不佳，制成的工程塑料轴承仍存在耐热性差、高温运行后耐磨性直线下降、损耗快等缺陷，产品使用寿命短，严重制约工程塑料轴承的广泛应用。
发明内容
本发明的目的之一在于，针对已有的技术现状，提供一种工程塑料自润滑耐磨组合物。
本发明的另一目的之一在于，提供上述工程塑料自润滑耐磨组合物在制备工程塑料轴承中的应用。
为达到上述目的，本发明采用如下技术方案：
本发明的目的之一在于，提供一种工程塑料自润滑耐磨组合物，其特征在于，包含以下重量份组分：
稀土化合物10～20重量份，
石墨烯5～10重量份，
锡青铜粉10～20重量份，
二氧化硅50～60重量份，
锌镁镧矿物10～20重量份，
所述锌镁镧矿物含有锌、镁、硼、镧、硅化学元素成分。
本发明中，上述原料的粒径均为纳米级。
本发明在使用过程中，将本发明的工程塑料自润滑耐磨组合物(下称“组合物”)与作为基料的工程塑料进行复合改性，随后采用获得的改性工程塑料材料通过注塑制得零部件(如塑料轴承)，本发明组合物的作用原理在于：
首先，添加本发明的组合物后，制备而成的零部件的磨损表面由于含稀土化合物、锡青铜粉、二氧化硅、锌镁镧矿物等多种高强度陶粒，可显著提高磨损表面的硬度，从而提高零部件的抗磨性能。
其次，在零部件运转过程中，表面进行摩擦运动时，形成许多微观瞬间闪温，温度和压力急剧上升，在瞬间高压、瞬间高温双重环境下，基料(工程塑料)与组合物的组分之间发生物理和化学反应，组合物以化学键式结合到塑料基料表层的晶格上，在塑料基料表层生成金属陶瓷晶体，并形成塑料陶瓷耐磨保护层。
此外，摩擦处的高压有效降低烧结温度、时间，组合物的组分在摩擦过程中产生的无数个闪温引发无数个微烧结，组合物的组分通过吸附、渗透以及微烧结，在摩擦表面形成金属陶瓷层，磨损大的部位，摩擦也大，微烧结的机会也大，随着金属陶瓷层的生成，逐步补偿磨损间隙，且金属陶瓷层极硬极滑，此时得以补偿的磨损部位在摩擦过程中的摩擦也逐步降低，微烧结的机会随之减少，当微烧结量与磨损量相对平衡时，金属陶瓷层的增厚度从现象上看是停止了，由此形成与零部件最匹配的金属陶瓷层，能达到自动、自适应地原位修复磨损部位的效果。
本发明的组合物应用于工程塑料中，可使改性后的工程塑料的耐热性提高30℃～50℃，同时有效提高工程塑料的耐磨性能。
优选地，所述的工程塑料自润滑耐磨组合物，包含以下重量份组分：
稀土化合物15重量份，
石墨烯8重量份，
锡青铜粉15重量份，
二氧化硅55重量份，
锌镁镧矿物15重量份，
所述锌镁镧矿物含有锌、镁、硼、镧、硅化学元素成分。
二氧化硅的的作用是在运行过程中与稀土化合物发生反应生成塑料基陶瓷层。
石墨烯、锡青铜粉与含有锌、镁、硼、镧、硅化学元素成分的锌镁镧矿物可加速塑料基陶瓷层的生成。
优选地，所述的稀土化合物为选自氧化铈、氧化镨、氧化钕、氧化镝、氧化钇中任意一种或多种组合。
优选地，所述的二氧化硅与锌镁镧矿物之间的重量比为4:1。
本发明的另一目的在于，提供上述的工程塑料自润滑耐磨组合物在制备工程塑料轴承中的应用。
所述工程塑料轴承的制备方法包含以下步骤：
S1.工程塑料自润滑耐磨组合物的制备：各原料按重量份配合混合而成；
S2.工程塑料改性：将上一步骤制得的工程塑料自润滑耐磨组合物加入到工程塑料中，进行抽粒，获得改性工程塑料材料；
或者S2.工程塑料改性：将工程塑料自润滑耐磨组合物、增强纤维加入到工程塑料中，随后进行抽粒，获得改性工程塑料材料；
S3.采用改性工程塑料材料注塑成型，制得成品。
其中，工程塑料为选自PI、PEEK、PTFE、PVDF、PA66、UPE、PP、ABS、HDPE、PBT中的任意一种或多种组合。
增强纤维为选自碳纤维、金属纤维、玻璃纤维，碳化硅纤维、复合晶纤中的任意一种或多种组合。
本发明的有益效果在于：
1)本发明的组合物可显著提高零部件磨损表面的硬度，从而提高零部件的抗磨性能。
2)在零部件运转过程中，基料(工程塑料)与组合物的组分之间发生物理和化学反应，在塑料基料表层生成金属陶瓷晶体，并形成塑料陶瓷耐磨保护层。
3)可在磨损部位生成金属陶瓷层，逐步补偿磨损间隙，形成与零部件最匹配的金属陶瓷层，达到自动、自适应地原位修复磨损部位的效果。
4)本发明的组合物应用于工程塑料中，可使改性后的工程塑料的耐热性提高30℃～50℃，同时有效提高工程塑料的耐磨性能。
具体实施方式
以下结合具体实施例对本发明作进一步详细描述，但本发明的实施方式不限于此。
一种工程塑料自润滑耐磨组合物，包含以下重量份组分：
稀土化合物10～20重量份，
石墨烯5～10重量份，
锡青铜粉10～20重量份，
二氧化硅50～60重量份，
锌镁镧矿物10～20重量份，
所述锌镁镧矿物含有锌、镁、硼、镧、硅化学元素成分。
在零部件中添加本发明的组合物，在使用初期，基料中的纳米微球成分(本发明组合物)在接触区微观下形成无数个纳米微轴承，起到类似球轴承的作用以降低摩擦，最终在相对运动的摩擦副表面,形成塑料陶瓷耐磨保护层，具有异乎寻常的力学和物理性能，降低了摩擦因数，摩擦系数达μ0.003～0.007，比油膜润滑低一个量级。同时相对运动时，可以修复5um以下的凹凸不平的摩擦表面，使较粗糙的或已发生磨损的摩擦副表面不断得到自适应修复，并形成最佳匹配的金属陶瓷层，由于金属陶瓷层具有超强的结合力和超高的硬度，并且生成的金属陶瓷层与基料形成分子键组合，线胀系数一致，在高温强摩擦条件下也不会剥落，从而大幅延长摩擦副工作寿命，能维持产品高精度的长久保持。
实施例1
一种工程塑料自润滑耐磨组合物，包含以下重量份组分：
稀土化合物10重量份，
石墨烯5重量份，
锡青铜粉10重量份，
二氧化硅50重量份，
锌镁镧矿物10重量份
所述锌镁镧矿物含有锌、镁、硼、镧、硅化学元素成分。
实施例2
一种工程塑料自润滑耐磨组合物，包含以下重量份组分：
稀土化合物20重量份，
石墨烯10重量份，
锡青铜粉20重量份，
二氧化硅60重量份，
锌镁镧矿物20重量份
所述锌镁镧矿物含有锌、镁、硼、镧、硅化学元素成分。
实施例3
一种工程塑料自润滑耐磨组合物，包含以下重量份组分：
稀土化合物15重量份，
石墨烯8重量份，
锡青铜粉15重量份，
二氧化硅55重量份，
锌镁镧矿物15重量份，
所述锌镁镧矿物含有锌、镁、硼、镧、硅化学元素成分。
实施例4
一种工程塑料轴承，其制备方法包含以下步骤：
S1.工程塑料自润滑耐磨组合物的制备：各原料按实施例1的重量份配合混合而成；
S2.工程塑料改性：将上一步骤制得的工程塑料自润滑耐磨组合物加入到工程塑料中，进行抽粒，获得改性工程塑料材料；
S3.采用改性工程塑料材料注塑成型，制得成品。
实施例5
一种工程塑料轴承，其制备方法包含以下步骤：
S1.工程塑料自润滑耐磨组合物的制备：各原料按实施例3的重量份配合混合而成；
S2.工程塑料改性：将工程塑料自润滑耐磨组合物、增强纤维加入到工程塑料中，随后进行抽粒，获得改性工程塑料材料；
S3.采用改性工程塑料材料注塑成型，制得成品。
以上结合具体实施方式描述了本发明的技术原理。这些描述只是为了解释本发明的原理，而不能以任何方式解释为对本发明保护范围的限制。基于此处的解释，本领域技术人员不需要付出创造性劳动即可联想到本发明的其它具体实施方式，这些方式都将落入本发明的保护范围之内。

Claims (7)

1.一种工程塑料自润滑耐磨组合物，其特征在于，包含以下重量份组分：
稀土化合物10～20重量份，
石墨烯5～10重量份，
锡青铜粉10～20重量份，
二氧化硅50～60重量份，
锌镁镧矿物10～20重量份，
所述锌镁镧矿物含有锌、镁、硼、镧、硅化学元素成分。
2.根据权利要求1所述的一种工程塑料自润滑耐磨组合物，其特征在于，所述的稀土化合物为选自氧化铈、氧化镨、氧化钕、氧化镝、氧化钇中任意一种或多种组合。
3.根据权利要求2所述的一种工程塑料自润滑耐磨组合物，其特征在于，所述的二氧化硅与锌镁镧矿物之间的重量比为4:1。
4.根据权利要求3所述的一种工程塑料自润滑耐磨组合物，其特征在于，包含以下重量份组分：
稀土化合物15重量份，
石墨烯8重量份，
锡青铜粉15重量份，
二氧化硅55重量份，
锌镁镧矿物15重量份，
所述锌镁镧矿物含有锌、镁、硼、镧、硅化学元素成分。
5.根据权利要求1至4任意一项所述的工程塑料自润滑耐磨组合物，其特性在于，所述稀土化合物、石墨烯、锡青铜粉、二氧化硅及锌镁镧矿物的粒径均为纳米级。
6.一种根据权利要求1至4任意一项所述的工程塑料自润滑耐磨组合物在制备工程塑料轴承中的应用。
7.根据权利要求6所述的应用，其特性在于，所述工程塑料轴承的制备方法包含以下步骤：
S1.工程塑料自润滑耐磨组合物的制备：各原料按重量份配合混合而成；
S2.工程塑料改性：将上一步骤制得的工程塑料自润滑耐磨组合物加入到工程塑料中，进行抽粒，获得改性工程塑料材料；
或者S2.工程塑料改性：将工程塑料自润滑耐磨组合物、增强纤维加入到工程塑料中，随后进行抽粒，获得改性工程塑料材料；
S3.采用改性工程塑料材料注塑成型，制得成品。
CN202010970264.5A 2020-09-16 2020-09-16 工程塑料自润滑耐磨组合物及其应用 Pending CN112048099A (zh)

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CN1727408A (zh) * 2005-07-22 2006-02-01 南京工业大学 自润滑轴承材料及其制备方法
CN101696292A (zh) * 2009-09-27 2010-04-21 吴南松 工程塑料轴承内芯专用材料
CN102391597A (zh) * 2011-03-28 2012-03-28 深圳市兆威机电有限公司 一种耐磨工程塑料及其制备方法和用途
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CN109054286A (zh) * 2018-07-17 2018-12-21 天津布瑞斯克精密橡塑有限公司 一种耐磨工程塑料、加工方法及塑料轴承

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CN1727408A (zh) * 2005-07-22 2006-02-01 南京工业大学 自润滑轴承材料及其制备方法
CN101696292A (zh) * 2009-09-27 2010-04-21 吴南松 工程塑料轴承内芯专用材料
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