CN105949620B - 一种汽车保险杠的制备方法 - Google Patents
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Abstract
本发明涉及一种汽车保险杠制备技术领域,尤其涉及一种可获得高安全性能保险杠的汽车保险杠及其制备方法,所述汽车保险杠由以下原料的重量配比组成:聚丙烯110‑120,聚偏氟乙烯20‑30,聚丙烯腈10‑20,聚烯烃弹性体20‑22,乙基纤维素3‑6,一缩二乙二醇0.6‑0.9,铁矿粉7‑8,碳化硅2‑3,热稳定剂0.1‑0.6,填充剂13‑15,抗氧剂1.2‑1.4,双马来西亚按0.7‑0.9,润滑剂1‑2。本发明优点在于:高强度、高韧性、吸能效果好,可满足驾驶安全性能要求,达到车辆整车轻量化要求;通过注塑工艺是的设备具有极强的抗撞击性,且最大程度控制了注塑件的缺陷;利用涂料无需烘烤缩短了设备的喷涂工序,提高了生产效率,同时,使得设备还具有抗水、防潮和防腐效果。
Description
技术领域
本发明涉及一种汽车保险杠制备工艺,尤其涉及一种可获得高安全性能保险杠的汽车保险杠制备方法。
背景技术
随着人们生活水平的日益提高,轿车已成为人们家庭中不可或缺的部分,随之而来的交通事故也越发频繁,为了减少轿车在发生事故时对驾驶人员及乘员的伤害,现有轿车上通常安装有保险杠,以增强轿车的防撞冲击力。汽车保险杠具有安全保护、装饰车辆以及改善车辆的空气动力学特性等作用。从安全上看,汽车发生低速碰撞事故时能起到缓冲作用,保护前后车体;在与行人发生事故时可以起到一定的保护行人的作用;从外观上看,还具有装饰性,也是成为装饰轿车外型的重要部件;同时,汽车保险杠还有一定的空气动力学作用。
目前,现有市面上的汽车保险杠主要由两种材质制成,一种由金属材料加工而成,其缺点是:制造成本高、不可回收,消耗资源较多,增加了整车的重量,与现今追求车辆轻量化相悖;另一种由塑料制成,其缺点是:安全性能低、吸能效果差,不能确保撞击时的吸振与缓冲,同时,抗水、防潮和防腐蚀效果较差,不能满足现有汽车对保险杠的使用要求。
发明内容
本发明所要解决的技术问题是针对现有技术的不足,提供一种抗水、防潮、防腐、高强度、高韧性、吸能效果好,可满足驾驶安全性能要求,达到车辆整车轻量化要求,降低生产成本的汽车保险杠的制备方法。
为解决上述技术问题,本发明的技术方案为:一种汽车保险杠的制备方法,其特点是,由以下原料的重量配比组成:聚丙烯110-120,聚偏氟乙烯20-30,聚丙烯腈10-20,聚烯烃弹性体20-22,乙基纤维素3-6,一缩二乙二醇0.6-0.9,铁矿粉7-8,碳化硅2-3,热稳定剂0.1-0.6,填充剂13-15,抗氧剂1.2-1.4,双马来西亚按0.7-0.9,润滑剂1-2,其制备方法为:步骤(1)将聚丙烯、聚偏氟乙烯、聚丙烯腈、聚烯烃弹性体、乙基纤维素、铁矿粉、碳化硅按配比称量后,加入搅拌速度为500-700r/min的搅拌机内,搅拌温度为50-60℃,充分混合均匀后,加入剩余原料搅拌25-35分钟,升温70-80℃继续加热搅拌,冷却至常温后得到原料的改性混合物;步骤(2)将改性混合物置入双螺杆挤出机中挤出、造粒,挤出温度为220-235℃,螺杆转速为200-220r/min,将造粒至于50-60℃的烘箱中0.8-1.2小时;步骤(3)通过注塑机注塑成型得到成品,所述注塑温度为210-220℃,注塑时间为16-18秒;步骤(4)使用涂料对成品表面进行喷涂处理,所述涂料包括重量配比为过氯乙烯树脂6,亚麻油中油度醇酸树脂8.7,松香改性苯酚甲醛树脂7.9,脱浮型铝粉浆3.2,酞菁绿浆1.2,甲苯27,环已酮13,醋酸丁酯12制成的甲组份,将甲组份与甲苯二异氰酸酯按照87∶13的质量比混合均匀后,对成品表面进行喷涂。
优选的,由以下原料的重量配比组成:聚丙烯110,聚偏氟乙烯20,聚丙烯腈10,聚烯烃弹性体20,乙基纤维素3,一缩二乙二醇0.6,铁矿粉7,碳化硅2,热稳定剂0.1,填充剂14,抗氧剂1.3,双马来西亚按0.8,润滑剂1。
优选的,由以下原料的重量配比组成:聚丙烯120,聚偏氟乙烯30,聚丙烯腈20,聚烯烃弹性体22,乙基纤维素6,一缩二乙二醇0.9,铁矿粉8,碳化硅3,热稳定剂0.6,填充剂15,抗氧剂1.4,双马来西亚按0.9,润滑剂2。
优选的,由以下原料的重量配比组成:聚丙烯115,聚偏氟乙烯25,聚丙烯腈15,聚烯烃弹性体21,乙基纤维素5,一缩二乙二醇0.7,铁矿粉7.5,碳化硅2.5,热稳定剂0.3,填充剂14,抗氧剂1.3,双马来西亚按0.8,润滑剂1.5。
优选的,所述步骤(1)中搅拌速度为650r/min,搅拌温度为58℃。
优选的,所述步骤(1)中搅拌时间为30分钟,温度升至78℃。
优选的,所述步骤(2)中挤出温度为230℃,螺杆转速为210r/min。
优选的,所述步骤(2)中烘箱温度设定为55℃,放入时间为1小时。
优选的,所述步骤(3)中注塑温度为215℃,注塑时间为17秒。
与现有技术相比,本发明的优点在于:高强度、高韧性、吸能效果好,可满足驾驶安全性能要求,达到车辆整车轻量化要求,降低了生产成本;通过注塑工艺是的设备具有极强的抗撞击性,且最大程度上控制了注塑件的缺陷;利用涂料无需烘烤缩短了设备的喷涂工序,提高了生产效率,同时,使得设备还具有抗水、防潮和防腐效果。
具体实施方式
进一步描述本发明的具体技术方案,以便于本领域的技术人员进一步地理解本发明,而不构成对其权力的限制。
实施例1,一种汽车保险杠的制备方法,由以下原料的重量配比组成:聚丙烯110-120,聚偏氟乙烯20-30,聚丙烯腈10-20,聚烯烃弹性体20-22,乙基纤维素3-6,一缩二乙二醇0.6-0.9,铁矿粉7-8,碳化硅2-3,热稳定剂0.1-0.6,填充剂13-15,抗氧剂1.2-1.4,双马来西亚按0.7-0.9,润滑剂1-2,其制备方法为:步骤(1)将聚丙烯、聚偏氟乙烯、聚丙烯腈、聚烯烃弹性体、乙基纤维素、铁矿粉、碳化硅按配比称量后,加入搅拌速度为500-700r/min的搅拌机内,搅拌温度为50-60℃,充分混合均匀后,加入剩余原料搅拌25-35分钟,升温70-80℃继续加热搅拌,冷却至常温后得到原料的改性混合物;步骤(2)将改性混合物置入双螺杆挤出机中挤出、造粒,挤出温度为220-235℃,螺杆转速为200-220r/min,将造粒至于50-60℃的烘箱中0.8-1.2小时;步骤(3)通过注塑机注塑成型得到成品,所述注塑温度为210-220℃,注塑时间为16-18秒;步骤(4)使用涂料对成品表面进行喷涂处理,所述涂料包括重量配比为过氯乙烯树脂6,亚麻油中油度醇酸树脂8.7,松香改性苯酚甲醛树脂7.9,脱浮型铝粉浆3.2,酞菁绿浆1.2,甲苯27,环己酮13,醋酸丁酯12制成的甲组份,将甲组份与甲苯二异氰酸酯按照87∶13的质量比混合均匀后,对成品表面进行喷涂。所述涂料具有良好的抗水、防潮以及防腐效果,也无所对保险杠进行烘烤处理,减少了烘烤工序,提高了生产效率。所述填充剂选取为滑石粉,所述润滑剂选用PE腊。
所述聚丙烯具有良好的综合力学性能耐热性,耐化学药品性,绝缘性,加工性能和较低的密度,成本低廉,故其发展速度较快,但是聚丙烯本身脆性(尤其是低温脆性)较大,耐光性差、易老化,韧性不好,用于韧性要求较高的保险杠时必须对聚丙烯进行增韧改性;所述聚烯烃弹性体是具有窄相对分子,质量分布和均匀的短支链分布的热塑性弹性体,具有较小的内聚能,较高的剪切敏感性,加工时与聚丙烯的相容性好,其表观切变粘度对温度的依赖性与聚丙烯接近,对聚丙烯增韧效果显著。聚烯烃弹性体有着良好的回弹性和柔韧性,且其硬度很低,耐寒性极佳,聚烯烃弹性体增韧聚丙烯后,提高聚丙烯的常温和低温下的冲击强度,带给材料良好的综合性能;所述乙基纤维素作为粘接剂使用;所述一缩二乙二醇作为降解剂使用;所述双马来西亚按作为交联剂使用,以其优异的耐热性、电绝缘性、透波性、耐辐射、阻燃性,良好的力学性能和尺寸稳定性,成型工艺类似于环氧树脂等特点,被广泛应用于航空、航天、机械、电子等工业领域中,先进复合材料的树脂基体、耐高温绝缘材料和胶粘剂等。
实施例2,实施例1所述汽车保险杠的制备方法中,由以下原料的重量配比组成:聚丙烯110,聚偏氟乙烯20,聚丙烯腈10,聚烯烃弹性体20,乙基纤维素3,一缩二乙二醇0.6,铁矿粉7,碳化硅2,热稳定剂0.1,填充剂14,抗氧剂1.3,双马来西亚按0.8,润滑剂1。
实施例3,实施例1或2所述汽车保险杠的制备方法中,由以下原料的重量配比组成:聚丙烯120,聚偏氟乙烯30,聚丙烯腈20,聚烯烃弹性体22,乙基纤维素6,一缩二乙二醇0.9,铁矿粉8,碳化硅3,热稳定剂0.6,填充剂15,抗氧剂1.4,双马来西亚按0.9,润滑剂2。
实施例4,实施例1-3任一项所述汽车保险杠的制备方法中,由以下原料的重量配比组成:聚丙烯115,聚偏氟乙烯25,聚丙烯腈15,聚烯烃弹性体21,乙基纤维素5,一缩二乙二醇0.7,铁矿粉7.5,碳化硅2.5,热稳定剂0.3,填充剂14,抗氧剂1.3,双马来西亚按0.8,润滑剂1.5。
实施例5,实施例1-4任一项所述汽车保险杠的制备方法中,所述步骤(1)中搅拌速度为650r/min,搅拌温度为58℃。
实施例6,实施例1-5任一项所述汽车保险杠的制备方法中,所述步骤(1)中搅拌时间为30分钟,温度升至78℃。
实施例7,实施例1-6任一项所述汽车保险杠的制备方法中,所述步骤(2)中挤出温度为230℃,螺杆转速为210r/min。
实施例8,实施例1-7任一项所述汽车保险杠的制备方法中,所述步骤(2)中烘箱温度设定为55℃,放入时间为1小时。
实施例9,实施例1-8任一项所述汽车保险杠的制备方法中,所述步骤(3)中注塑温度为215℃,注塑时间为17秒。
下表为由本发明实施例所得汽车保险杠的材料性能测定:
最后需要说明的是,以上实施例仅用以说明本发明的技术方案而非限制性技术方案,本领域的普通技术人员应当理解,那些对本发明的技术方案进行修改或者等同替换,而不脱离本技术方案的宗旨和范围,均应涵盖在本发明的权利要求范围当中。
Claims (8)
1.一种汽车保险杠的制备方法,其特征在于,由以下原料的重量配比组成:聚丙烯110-120,聚偏氟乙烯20-30,聚丙烯腈10-20,聚烯烃弹性体20-22,乙基纤维素3-6,一缩二乙二醇0.6-0.9,铁矿粉7-8,碳化硅2-3,热稳定剂0.1-0.6,填充剂13-15,抗氧剂1.2-1.4,双马来酰亚胺0.7-0.9,润滑剂1-2,其制备方法为:
步骤(1)将聚丙烯、聚偏氟乙烯、聚丙烯腈、聚烯烃弹性体、乙基纤维素、铁矿粉、碳化硅按配比称量后,加入搅拌速度为500-700r/min的搅拌机内,搅拌温度为50-60℃,充分混合均匀后,加入剩余原料搅拌25-35分钟,升温70-80℃继续加热搅拌,冷却至常温后得到原料的改性混合物;
步骤(2)将改性混合物置入双螺杆挤出机中挤出、造粒,挤出温度为220-235℃,螺杆转速为200-220r/min,将造粒置于50-60℃的烘箱中0.8-1.2小时;
步骤(3)通过注塑机注塑成型得到成品,所述注塑温度为210-220℃,注塑时间为16-18秒;
步骤(4)使用涂料对成品表面进行喷涂处理,所述涂料包括重量配比为过氯乙烯树脂6,亚麻油中油度醇酸树脂8.7,松香改性苯酚甲醛树脂7.9,脱浮型铝粉浆3.2,酞菁绿浆1.2,甲苯27,环己 酮13,醋酸丁酯12制成的甲组份,将甲组份与甲苯二异氰酸酯按照87:13的质量比混合均匀后,对成品表面进行喷涂。
2.如权利要求1所述的一种汽车保险杠的制备方法,其特征在于:由以下原料的重量配比组成:聚丙烯110,聚偏氟乙烯20,聚丙烯腈10,聚烯烃弹性体20,乙基纤维素3,一缩二乙二醇0.6,铁矿粉7,碳化硅2,热稳定剂0.1,填充剂14,抗氧剂1.3,双马来酰亚胺0.8,润滑剂1。
3.如权利要求1所述的一种汽车保险杠的制备方法,其特征在于:由以下原料的重量配比组成:聚丙烯120,聚偏氟乙烯30,聚丙烯腈20,聚烯烃弹性体22,乙基纤维素6,一缩二乙二醇0.9,铁矿粉8,碳化硅3,热稳定剂0.6,填充剂15,抗氧剂1.4,双马来酰亚胺0.9,润滑剂2。
4.如权利要求1所述的一种汽车保险杠的制备方法,其特征在于:由以下原料的重量配比组成:聚丙烯115,聚偏氟乙烯25,聚丙烯腈15,聚烯烃弹性体21,乙基纤维素5,一缩二乙二醇0.7,铁矿粉7.5,碳化硅2.5,热稳定剂0.3,填充剂14,抗氧剂1.3,双马来酰亚胺0.8,润滑剂1.5。
5.如权利要求1所述的一种汽车保险杠的制备方法,其特征在于:所述步骤(1)中搅拌速度为650r/min,搅拌温度为58℃。
6.如权利要求1所述的一种汽车保险杠的制备方法,其特征在于:所述步骤(2)中挤出温度为230℃,螺杆转速为210r/min。
7.如权利要求1所述的一种汽车保险杠的制备方法,其特征在于:所述步骤(2)中烘箱温度设定为55℃,放入时间为1小时。
8.如权利要求1所述的一种汽车保险杠的制备方法,其特征在于:所述步骤(3)中注塑温度为215℃,注塑时间为17秒。
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