CN104046012A - 汽车离合器分离轴承用高强耐磨尼龙66复合材料及其制备方法 - Google Patents

汽车离合器分离轴承用高强耐磨尼龙66复合材料及其制备方法 Download PDF

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CN104046012A
CN104046012A CN201410213902.3A CN201410213902A CN104046012A CN 104046012 A CN104046012 A CN 104046012A CN 201410213902 A CN201410213902 A CN 201410213902A CN 104046012 A CN104046012 A CN 104046012A
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parts
nylon
composite
kaolin
weight
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詹金珠
王玉宝
张如宏
陈士坤
崔伟东
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ANHUI ANLAN MOULD Co Ltd
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    • B29B7/00—Mixing; Kneading
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29B9/02—Making granules by dividing preformed material
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Abstract

本发明公开了一种汽车离合器分离轴承用高强耐磨尼龙66复合材料及其制备方法，其由以下重量份的原料制成：尼龙6650-60、乙烯-四氟乙烯共聚物40-50、聚醚醚酮20-30、石墨烯16-22、二硫化钨10-15、聚酰胺蜡微粉5-10、柠檬酸镧1-2、三盐基马来酸铅2-3、碳酸铈1-2、刚玉粉8-12、纳米氮化钛6-9、乙炔炭黑20-25、棉籽油10-15、三乙二醇二异辛酸酯7-14、乙撑双油酸酰胺3-5、硫酸镁4-8、硅酸钙3-6、改性高岭土9-18、脲丙基三甲氧基硅烷2-4、抗氧剂7361-2、抗氧剂10101-2。本发明制得的尼龙66复合材料在高速摩擦条件下性能稳定，综合性能优异，不仅具有优异的耐磨性，还具有很高的机械强度和抗冲击性，同时具有良好的耐热性、耐老化性和抗疲劳性。

Description

汽车离合器分离轴承用高强耐磨尼龙66复合材料及其制备方法
技术领域
本发明涉及一种汽车离合器分离轴承用高强耐磨尼龙66复合材料及其制备方法，属于尼龙材料领域。
背景技术
近几十年来，汽车工业迅速发展，汽车研究的主要方向是轻量、节能降耗、减少排放以及改进安全性能，采用塑料制成的功能件在汽车中的应用愈来愈广泛。尼龙由于强度高、耐热、耐油、耐化学药品、自润滑、自熄、抗震、防噪音、易加工、可回收利用、来源充足等优异的综合性能，在汽车上的应用得到很大发展。汽车离合器分离轴承工作条件十分恶劣，在使用过程中受轴向载荷、冲击载荷以及高速旋转时的径向离心力的作用，且因间断性地高速转动承受高速摩擦，因此，不仅要求汽车离合器分离轴承材料具有很高的机械强度，还需要具有很好的耐磨性。
发明内容
本发明的目的在于提供一种机械强度高、耐磨性优异的尼龙66复合材料及其制备方法，以满足汽车离合器分离轴承材料的性能要求。
为实现上述目的。本发明采用的技术方案如下：
一种汽车离合器分离轴承用高强耐磨尼龙66复合材料，由以下重量份的原料制成：尼龙6650-60、乙烯-四氟乙烯共聚物40-50、聚醚醚酮20-30、石墨烯16-22、二硫化钨10-15、聚酰胺蜡微粉5-10、柠檬酸镧1-2、三盐基马来酸铅2-3、碳酸铈1-2、刚玉粉8-12、纳米氮化钛6-9、乙炔炭黑20-25、棉籽油10-15、三乙二醇二异辛酸酯7-14、乙撑双油酸酰胺3-5、硫酸镁4-8、硅酸钙3-6、改性高岭土9-18、脲丙基三甲氧基硅烷2-4、抗氧剂7361-2、抗氧剂10101-2；
所述改性高岭土的制备方法如下：(1)将高岭土放入浓度为20％的盐酸溶液中浸泡1-2h，过滤，用蒸馏水洗涤至中性，烘干，620-680℃煅烧1-2h，自然冷却至室温，粉碎，过筛，加水超声分散制成浓度为45-55％的悬浮液，待用；(2)按摩尔比1:1-2的比例将钛酸丁酯、正硅酸乙酯溶于2-3倍量无水乙醇，用浓度为15％冰醋酸溶液调节PH至4-5，磁力搅拌1-2h，得到胶体溶液；(3)按质量比1:1.5-2将步骤(1)制得的悬浮液与步骤(2)制得的胶体溶液混合均匀，再加入混合液重量3-5％的纳米碳化硅、2-4％的硫酸锌、1-2％的司盘-80水浴加热至50-60℃，搅拌1-2h，过滤，烘干，650-700℃煅烧1-2h，自然冷却至室温，加入相当于高岭土重量3-5％的甲基丙烯酸缩水甘油酯、2-3％的硬脂酸和1-2％的N-(β-氨乙基)-γ-氨丙基三甲氧基硅烷，2000-3000rpm高速搅拌10-15min，待用；(4)按重量比1:3-4的比例称取步骤(3)处理后的高岭土和固含量为45％丁苯胶乳，混合均匀，然后加入相当于丁苯乳液重量10-15％的丙烯酸、5-10％的醋酸乙烯酯、3-6％的甲基丙烯酸甲酯、2-3％的乳化剂OP-10、1-2％的十二烷基硫酸钠和1-2％的过硫酸钾，水浴加热至70-80℃，搅拌2-3h，静置20-30min，过滤，烘干即可。
本发明汽车离合器分离轴承用高强耐磨尼龙66复合材料的制备方法，包括以下步骤：
(1)将尼龙66、聚醚醚酮、二硫化钨、石墨烯、三盐基马来酸铅、刚玉粉、乙炔炭黑、三乙二醇二异辛酸酯、改性高岭土加入开炼机内，在75-85℃混炼4-6min，然后加入余下原料，在90-100℃下混炼3-5min，冷却至45℃以下时出料；
(2)将混炼好的物料投入双螺杆挤出机内，在各区加工温度设置在260-285℃之间、主机转速在100-150r/min下共混、挤出，冷却后经切粒机切粒，粒料再经干燥、筛选、包装即得成品。
本发明有益效果：
本发明制得的尼龙66复合材料在高速摩擦条件下性能稳定，综合性能优异，不仅具有优异的耐磨性，还具有很高的机械强度和抗冲击性，同时具有良好的耐热性、耐老化性和抗疲劳性，能够承受更大的动态负荷能力，完全满足汽车离合器分离轴承材料的性能要求，应用前景广阔。
具体实施方式
一种汽车离合器分离轴承用高强耐磨尼龙66复合材料，由以下重量份的原料制成：尼龙6655、乙烯-四氟乙烯共聚物45、聚醚醚酮25、石墨烯18、二硫化钨12、聚酰胺蜡微粉8、柠檬酸镧1.5、三盐基马来酸铅2.5、碳酸铈1.5、刚玉粉10、纳米氮化钛7、乙炔炭黑22、棉籽油12、三乙二醇二异辛酸酯11、乙撑双油酸酰胺4、硫酸镁6、硅酸钙4、改性高岭土14、脲丙基三甲氧基硅烷3、抗氧剂7361.5、抗氧剂10101；
所述改性高岭土的制备方法如下：(1)将高岭土放入浓度为20％的盐酸溶液中浸泡1.5h，过滤，用蒸馏水洗涤至中性，烘干，650℃煅烧1.5h，自然冷却至室温，粉碎，过筛，加水超声分散制成浓度为50％的悬浮液，待用；(2)按摩尔比1:2的比例将钛酸丁酯、正硅酸乙酯溶于2.5倍量无水乙醇，用浓度为15％冰醋酸溶液调节PH至4，磁力搅拌1h，得到胶体溶液；(3)按质量比1:1.5将步骤(1)制得的悬浮液与步骤(2)制得的胶体溶液混合均匀，再加入混合液重量4％的纳米碳化硅、3％的硫酸锌、1.5％的司盘-80水浴加热至55℃，搅拌1.5h，过滤，烘干，680℃煅烧1h，自然冷却至室温，加入相当于高岭土重量4％的甲基丙烯酸缩水甘油酯、2.5％的硬脂酸和1.5％的N-(β-氨乙基)-γ-氨丙基三甲氧基硅烷，2500rpm高速搅拌12min，待用；(4)按重量比1:3的比例称取步骤(3)处理后的高岭土和固含量为45％丁苯胶乳，混合均匀，然后加入相当于丁苯乳液重量12％的丙烯酸、8％的醋酸乙烯酯、4％的甲基丙烯酸甲酯、2.5％的乳化剂OP-10、1.5％的十二烷基硫酸钠和1％的过硫酸钾，水浴加热至75℃，搅拌2h，静置25min，过滤，烘干即可。
汽车离合器分离轴承用高强耐磨尼龙66复合材料的制备方法，包括以下步骤：
(1)将尼龙66、聚醚醚酮、二硫化钨、石墨烯、三盐基马来酸铅、刚玉粉、乙炔炭黑、三乙二醇二异辛酸酯、改性高岭土加入开炼机内，在75-85℃混炼4-6min，然后加入余下原料，在90-100℃下混炼3-5min，冷却至45℃以下时出料；
(2)将混炼好的物料投入双螺杆挤出机内，在各区加工温度设置在260-285℃之间、主机转速在100-150r/min下共混、挤出，冷却后经切粒机切粒，粒料再经干燥、筛选、包装即得成品。
本实施例制得的尼龙复合材料的性能检测如下表所示：
项目 测试标准 测试结果
拉伸强度(MPa) TSO527 145
伸长率(％) TSO527 196
弯曲强度(MPa) TSO178 138
弯曲模量(MPa) TSO178 4500
缺口冲击强度(23℃，KJ/m2) TSO180 92
缺口冲击强度(-40℃，KJ/m2) TSO180 44
热变形温度(1.82MPa，℃) TSO75 182
磨耗量(mg) DIN53754 2.4

Claims (2)

1.一种汽车离合器分离轴承用高强耐磨尼龙66复合材料，其特征在于，由以下重量份的原料制成：尼龙66 50-60、乙烯-四氟乙烯共聚物 40-50、聚醚醚酮 20-30、石墨烯 16-22、二硫化钨10-15、聚酰胺蜡微粉 5-10、柠檬酸镧1-2、三盐基马来酸铅2-3、碳酸铈1-2、刚玉粉 8-12、纳米氮化钛 6-9、乙炔炭黑 20-25、棉籽油10-15、三乙二醇二异辛酸酯7-14、乙撑双油酸酰胺3-5、硫酸镁 4-8、硅酸钙 3-6、改性高岭土 9-18、脲丙基三甲氧基硅烷2-4、抗氧剂736 1-2、抗氧剂1010 1-2；
所述改性高岭土的制备方法如下：（1）将高岭土放入浓度为20%的盐酸溶液中浸泡1-2h，过滤，用蒸馏水洗涤至中性，烘干，620-680℃煅烧1-2h，自然冷却至室温，粉碎，过筛，加水超声分散制成浓度为45-55%的悬浮液，待用；（2）按摩尔比1:1-2的比例将钛酸丁酯、正硅酸乙酯溶于2-3倍量无水乙醇，用浓度为15%冰醋酸溶液调节PH至4-5，磁力搅拌1-2h，得到胶体溶液；（3)按质量比1:1.5-2将步骤（1）制得的悬浮液与步骤（2）制得的胶体溶液混合均匀，再加入混合液重量3-5%的纳米碳化硅、2-4%的硫酸锌、1-2%的司盘-80水浴加热至50-60℃，搅拌1-2h，过滤，烘干，650-700℃煅烧1-2h，自然冷却至室温，加入相当于高岭土重量3-5%的甲基丙烯酸缩水甘油酯、2-3%的硬脂酸和1-2%的N-(β-氨乙基)-γ-氨丙基三甲氧基硅烷，2000-3000rpm高速搅拌10-15min，待用；（4）按重量比1:3-4的比例称取步骤（3）处理后的高岭土和固含量为45%丁苯胶乳，混合均匀，然后加入相当于丁苯乳液重量10-15%的丙烯酸、5-10%的醋酸乙烯酯、3-6%的甲基丙烯酸甲酯、2-3%的乳化剂OP-10、1-2%的十二烷基硫酸钠和1-2%的过硫酸钾，水浴加热至70-80℃，搅拌2-3h，静置20-30min，过滤，烘干即可。
2.如权利要求1所述的汽车离合器分离轴承用高强耐磨尼龙66复合材料的制备方法，其特征在于包括以下步骤：
（1）将尼龙66 、聚醚醚酮、二硫化钨、石墨烯、三盐基马来酸铅、刚玉粉、乙炔炭黑、三乙二醇二异辛酸酯、改性高岭土加入开炼机内，在75-85℃混炼4-6min，然后加入余下原料，在90-100℃下混炼3-5min，冷却至45℃以下时出料；
（2）将混炼好的物料投入双螺杆挤出机内，在各区加工温度设置在260-285℃之间、主机转速在100-150r/min下共混、挤出，冷却后经切粒机切粒，粒料再经干燥、筛选、包装即得成品。
CN201410213902.3A 2014-05-19 2014-05-19 汽车离合器分离轴承用高强耐磨尼龙66复合材料及其制备方法 Withdrawn CN104046012A (zh)

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CN105086434A (zh) * 2015-08-25 2015-11-25 安徽安缆模具有限公司 一种高压油管用耐油耐高压尼龙材料及其制备方法
CN105331101A (zh) * 2015-12-14 2016-02-17 常熟市桃源汽车零部件制造有限公司 一种汽车锁紧螺母用抗开裂尼龙复合材料
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JP2020023680A (ja) * 2018-08-03 2020-02-13 ダイキン工業株式会社 含フッ素ポリマーを含有する組成物および成形品
CN115678269A (zh) * 2022-09-30 2023-02-03 珠海万通特种工程塑料有限公司 一种聚酰胺组合物及其制备方法和应用

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Publication number Priority date Publication date Assignee Title
CN105086434A (zh) * 2015-08-25 2015-11-25 安徽安缆模具有限公司 一种高压油管用耐油耐高压尼龙材料及其制备方法
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WO2020027046A1 (ja) * 2018-08-03 2020-02-06 ダイキン工業株式会社 含フッ素ポリマーを含有する組成物および成形品
JP2020023680A (ja) * 2018-08-03 2020-02-13 ダイキン工業株式会社 含フッ素ポリマーを含有する組成物および成形品
CN115678269A (zh) * 2022-09-30 2023-02-03 珠海万通特种工程塑料有限公司 一种聚酰胺组合物及其制备方法和应用

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