CN116948304A - 一种抗衰复合材料配方及多层注射方法 - Google Patents
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Abstract
本发明涉及复合材料技术领域,尤其为一种抗衰复合材料配方,包括聚丙烯母粒、低密度聚乙烯母粒、抗衰剂、促进剂、分散剂、润滑剂、内脱模剂以及隔离剂,且各成分按照重量比分别为:聚丙烯母粒70‑80份、低密度聚乙烯母粒60‑75份、抗衰剂10‑15份、促进剂7‑9份、分散剂5‑8份、润滑剂3‑6份、内脱模剂1.5‑3份以及隔离剂1‑1.5份,本发明可以有效解决现有的复合材料抗衰老性能较差,长期使用后,其容易发生老化,降低使用性能的问题。
Description
技术领域
本发明涉及复合材料技术领域,具体为一种抗衰复合材料配方及多层注射方法。
背景技术
复合材料是人们运用先进的材料制备技术将不同性质的材料组分优化组合而成的新材料,但现有的复合材料仍然存在不足之处,具体为:现有的复合材料抗衰老性能较差,长期使用后,其容易发生老化,降低使用性能。
因此,需要一种抗衰复合材料配方及多层注射方法来解决上述背景技术中提出的问题。
发明内容
本发明的目的在于提供一种抗衰复合材料配方及多层注射方法,以解决上述背景技术中提出的问题。
为实现上述目的,本发明提供如下技术方案:
一种抗衰复合材料配方,包括聚丙烯母粒、低密度聚乙烯母粒、抗衰剂、促进剂、分散剂、润滑剂、内脱模剂以及隔离剂,且各成分按照重量比分别为:聚丙烯母粒70-80份、低密度聚乙烯母粒60-75份、抗衰剂10-15份、促进剂7-9份、分散剂5-8份、润滑剂3-6份、内脱模剂1.5-3份以及隔离剂1-1.5份。
一种抗衰复合材料配方多层注射方法,包括以下步骤:
S1,将抗衰复合材料母粒投入加热罐中加热融化,得到熔融状态的抗衰复合材料,将熔融状态的抗衰复合材料送入挤出机中;
S2,在模具内部铺设脱模布,挤出机将熔融状态的抗衰复合材料注射进入模具内部,等待模具内部的抗衰复合材料铺满模具内部1/3空间后,停止注射,同时加热模具,等待3-5mi n后,挤出机再向模具内部注入熔融状态的抗衰复合材料,等待模具内部的抗衰复合材料再次铺满模具内部1/3空间后,停止注射,并再次加热模具,等待8-12mi n后,挤出机将剩余的熔融状态抗衰复合材料注入模具内;
S3,熔融状态抗衰复合材料完全注入模具后,以每小时2-3℃的塑料缓慢降温至室温,进行脱模处理,得到抗衰复合材料本体。
作为本发明优选的方案,所述制备方法为:将聚丙烯母粒、低密度聚乙烯母粒以及抗衰剂送入搅拌机中预热至80-100℃,保温搅拌5-8mi n后降温至40-70℃,再静置2-3h后取出,将取出的混合料送入混炼机中,混料110mi n-130mi n,再将促进剂、分散剂、润滑剂、内脱模剂以及隔离剂送入混炼机中,以相同的转速继续混料45mi n-50mi n,将得到的混炼料送入双螺杆挤出机中进行挤出造粒,得到抗衰复合材料母粒。
作为本发明优选的方案,所述促进剂由促进剂DM、促进剂NS和促进剂D按照质量比1∶0.3∶1的比例混合而成,分散剂为有机锌盐、润滑剂为亚乙基双硬脂酰胺、内脱模剂为脂肪酸钠,隔离剂为碳酸钙。
作为本发明优选的方案,所述抗衰剂的制备方法包括以下步骤:
S11,将纳米氧化锌投入甲醇溶液中,以2200r/mi n转速搅拌混合40mi n,得到纳米氧化锌分散液,然后调节纳米氧化锌分散液的pH至9.7,然后让纳米氧化锌分散液在微波和超声波协同作用下处理5mi n;
S12,向纳米氧化锌分散液中添加环氧化弹性体,调节温度至82℃,保温1.5小时,然后进行过滤,洗涤至中性,然后干燥粉碎后,过800目筛选筛进行筛选,获得改性纳米;
S13,先将改性纳米、纳米二氧化硅以及分散剂分散于乙醇溶液内,缓慢滴入正硅酸四乙酯乙醇溶液,室温条件下充分反应后加入硅烷偶联剂,在加热条件下继续充分反应后,得到抗衰剂。
作为本发明优选的方案,所述S11中分散剂为聚乙烯吡咯烷酮,S12中环氧化弹性体为醋酸乙烯酯基共聚物,所述S11中微波处理的功率为300W、超声波处理的功率为800W、超声波频率为30kHz。
作为本发明优选的方案,所述双螺杆挤出机的挤出温度为212℃-215℃,螺杆转速100-300r/mi n,双螺杆挤出的模唇物理尺寸为0.2mm-2m,压力18.5MPa~19MPa,停留时间5mi n~10mi n。
作为本发明优选的方案,所述混料机的混炼温度为175℃-180℃,混炼转速为400r/mi n-480r/mi n。
与现有技术相比,本发明的有益效果是:
1、本发明中,通过将聚丙烯母粒、低密度聚乙烯母粒以及抗衰剂送入搅拌机中预热,搅拌混合后再降温,静置后取出,将取出的混合料送入混炼机中进行混料,再将促进剂、分散剂、润滑剂、内脱模剂以及隔离剂送入混炼机中,以相同的转速继续混炼,将得到的混炼料送入双螺杆挤出机中进行挤出造粒,得到抗衰复合材料母粒,在复合材料制备过程中加入抗衰剂,抗衰剂中的改性纳米料能够吸收低密度聚乙烯母料和聚丙烯母料在生产中产生小分子副产物,能够更大程度的复合材料中的交联结构,提升复合材料的力学性能、拉伸强度以及撕裂强度,同时环氧化弹性体后能够游离至复合材料表面形成一层保护层,减少了复合材料与空气的接触,提高复合材料整体的抗衰性能,而纳米二氧化硅能够与环氧化弹性体结合在一起形成共聚物,能够有效的吸收紫外线,提高复合材料的抗紫外线能力,从而进一步提高复合材料的抗衰性能。
2、本发明中,通过将抗衰复合材料母粒投入加热罐中加热融化,得到熔融状态的抗衰复合材料,将熔融状态的抗衰复合材料送入挤出机中,在模具内部铺设脱模布,挤出机将熔融状态的抗衰复合材料注射进入模具内部,等待模具内部的抗衰复合材料铺满模具内部1/3空间后,停止注射,同时加热模具,等待一段时间后,挤出机再向模具内部注入熔融状态的抗衰复合材料,等待模具内部的抗衰复合材料再次铺满模具内部1/3空间后,停止注射,并再次加热模具,再等待一段后,挤出机将剩余的熔融状态抗衰复合材料注入模具内,熔融状态抗衰复合材料完全注入模具后,缓慢降温至室温,进行脱模处理,得到抗衰复合材料本体,使用多层注射成型方法,能够有效释放复合材料成型时产生的内应力,提高复合材料的强度。
具体实施方式
下面将结合本发明实施例,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例,基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
除非另有定义,本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同,本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的,不是旨在于限制本发明,本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
本发明提供一种技术方案:
一种抗衰复合材料配方,包括聚丙烯母粒、低密度聚乙烯母粒、抗衰剂、促进剂、分散剂、润滑剂、内脱模剂以及隔离剂,且各成分按照重量比分别为:聚丙烯母粒70-80份、低密度聚乙烯母粒60-75份、抗衰剂10-15份、促进剂7-9份、分散剂5-8份、润滑剂3-6份、内脱模剂1.5-3份以及隔离剂1-1.5份。
一种抗衰复合材料配方多层注射方法,包括以下步骤:
S1,将抗衰复合材料母粒投入加热罐中加热融化,得到熔融状态的抗衰复合材料,将熔融状态的抗衰复合材料送入挤出机中;
S2,在模具内部铺设脱模布,挤出机将熔融状态的抗衰复合材料注射进入模具内部,等待模具内部的抗衰复合材料铺满模具内部1/3空间后,停止注射,同时加热模具,等待3-5mi n后,挤出机再向模具内部注入熔融状态的抗衰复合材料,等待模具内部的抗衰复合材料再次铺满模具内部1/3空间后,停止注射,并再次加热模具,等待8-12mi n后,挤出机将剩余的熔融状态抗衰复合材料注入模具内;
S3,熔融状态抗衰复合材料完全注入模具后,以每小时2-3℃的塑料缓慢降温至室温,进行脱模处理,得到抗衰复合材料本体。
进一步的,所述制备方法为:将聚丙烯母粒、低密度聚乙烯母粒以及抗衰剂送入搅拌机中预热至80-100℃,保温搅拌5-8mi n后降温至40-70℃,再静置2-3h后取出,将取出的混合料送入混炼机中,混料110mi n-130mi n,再将促进剂、分散剂、润滑剂、内脱模剂以及隔离剂送入混炼机中,以相同的转速继续混料45mi n-50mi n,将得到的混炼料送入双螺杆挤出机中进行挤出造粒,得到抗衰复合材料母粒。
进一步的,所述促进剂由促进剂DM、促进剂NS和促进剂D按照质量比1∶0.3∶1的比例混合而成,分散剂为有机锌盐、润滑剂为亚乙基双硬脂酰胺、内脱模剂为脂肪酸钠,隔离剂为碳酸钙。
进一步的,所述抗衰剂的制备方法包括以下步骤:
S11,将纳米氧化锌投入甲醇溶液中,以2200r/mi n转速搅拌混合40mi n,得到纳米氧化锌分散液,然后调节纳米氧化锌分散液的pH至9.7,然后让纳米氧化锌分散液在微波和超声波协同作用下处理5mi n;
S12,向纳米氧化锌分散液中添加环氧化弹性体,调节温度至82℃,保温1.5小时,然后进行过滤,洗涤至中性,然后干燥粉碎后,过800目筛选筛进行筛选,获得改性纳米;
S13,先将改性纳米、纳米二氧化硅以及分散剂分散于乙醇溶液内,缓慢滴入正硅酸四乙酯乙醇溶液,室温条件下充分反应后加入硅烷偶联剂,在加热条件下继续充分反应后,得到抗衰剂。
进一步的,所述S11中分散剂为聚乙烯吡咯烷酮,S12中环氧化弹性体为醋酸乙烯酯基共聚物,所述S11中微波处理的功率为300W、超声波处理的功率为800W、超声波频率为30kHz。
进一步的,所述双螺杆挤出机的挤出温度为212℃-215℃,螺杆转速100-300r/min,双螺杆挤出的模唇物理尺寸为0.2mm-2m,压力18.5MPa~19MPa,停留时间5mi n~10min。
进一步的,所述混料机的混炼温度为175℃-180℃,混炼转速为400r/mi n-480r/mi n。
具体实施案例
将纳米氧化锌投入甲醇溶液中,以2200r/mi n转速搅拌混合40mi n,得到纳米氧化锌分散液,然后调节纳米氧化锌分散液的pH至9.7,然后让纳米氧化锌分散液在微波和超声波协同作用下处理5mi n,微波处理的功率为300W、超声波处理的功率为800W、超声波频率为30kHz,向纳米氧化锌分散液中添加环氧化弹性体,环氧化弹性体为醋酸乙烯酯基共聚物,调节温度至82℃,保温1.5小时,然后进行过滤,洗涤至中性,然后干燥粉碎后,过800目筛选筛进行筛选,获得改性纳米,先将改性纳米、纳米二氧化硅以及分散剂分散于乙醇溶液内,分散剂为聚乙烯吡咯烷酮,缓慢滴入正硅酸四乙酯乙醇溶液,室温条件下充分反应后加入硅烷偶联剂,在加热条件下继续充分反应后,得到抗衰剂;
称取聚丙烯母粒70份、低密度聚乙烯母粒60份、抗衰剂10份、促进剂7份、分散剂5份、润滑剂3份、内脱模剂1.5份以及隔离剂1份,促进剂由促进剂DM、促进剂NS和促进剂D按照质量比1∶0.3∶1的比例混合而成,分散剂为有机锌盐、润滑剂为亚乙基双硬脂酰胺、内脱模剂为脂肪酸钠,隔离剂为碳酸钙;
将聚丙烯母粒、低密度聚乙烯母粒以及抗衰剂送入搅拌机中预热至80℃,保温搅拌5mi n后降温至40℃,再静置2h后取出,将取出的混合料送入混炼机中,混料110mi nmin,再将促进剂、分散剂、润滑剂、内脱模剂以及隔离剂送入混炼机中,以相同的转速继续混料45mi n,混料机的混炼温度为180℃,混炼转速为480r/mi n,将得到的混炼料送入双螺杆挤出机中进行挤出造粒,双螺杆挤出机的挤出温度为215℃,螺杆转速300r/mi n,压力为19MPa,停留时间5mi n,得到抗衰复合材料母粒;
将抗衰复合材料母粒投入加热罐中加热融化,得到熔融状态的抗衰复合材料,将熔融状态的抗衰复合材料送入挤出机中,在模具内部铺设脱模布,挤出机将熔融状态的抗衰复合材料注射进入模具内部,等待模具内部的抗衰复合材料铺满模具内部1/3空间后,停止注射,同时加热模具,等待3mi n后,挤出机再向模具内部注入熔融状态的抗衰复合材料,等待模具内部的抗衰复合材料再次铺满模具内部1/3空间后,停止注射,并再次加热模具,等待8mi n后,挤出机将剩余的熔融状态抗衰复合材料注入模具内,熔融状态抗衰复合材料完全注入模具后,以每小时2℃的塑料缓慢降温至室温,进行脱模处理,得到抗衰复合材料本体。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。
Claims (8)
1.一种抗衰复合材料配方,包括聚丙烯母粒、低密度聚乙烯母粒、抗衰剂、促进剂、分散剂、润滑剂、内脱模剂以及隔离剂,且各成分按照重量比分别为:聚丙烯母粒70-80份、低密度聚乙烯母粒60-75份、抗衰剂10-15份、促进剂7-9份、分散剂5-8份、润滑剂3-6份、内脱模剂1.5-3份以及隔离剂1-1.5份。
2.一种抗衰复合材料配方多层注射方法,其特征在于,包括以下步骤:
S1,将抗衰复合材料母粒投入加热罐中加热融化,得到熔融状态的抗衰复合材料,将熔融状态的抗衰复合材料送入挤出机中;
S2,在模具内部铺设脱模布,挤出机将熔融状态的抗衰复合材料注射进入模具内部,等待模具内部的抗衰复合材料铺满模具内部1/3空间后,停止注射,同时加热模具,等待3-5min后,挤出机再向模具内部注入熔融状态的抗衰复合材料,等待模具内部的抗衰复合材料再次铺满模具内部1/3空间后,停止注射,并再次加热模具,等待8-12min后,挤出机将剩余的熔融状态抗衰复合材料注入模具内;
S3,熔融状态抗衰复合材料完全注入模具后,以每小时2-3℃的塑料缓慢降温至室温,进行脱模处理,得到抗衰复合材料本体。
3.根据权利要求1所述的一种抗衰复合材料配方,其特征在于:所述制备方法为:将聚丙烯母粒、低密度聚乙烯母粒以及抗衰剂送入搅拌机中预热至80-100℃,保温搅拌5-8min后降温至40-70℃,再静置2-3h后取出,将取出的混合料送入混炼机中,混料110min-130min,再将促进剂、分散剂、润滑剂、内脱模剂以及隔离剂送入混炼机中,以相同的转速继续混料45min-50min,将得到的混炼料送入双螺杆挤出机中进行挤出造粒,得到抗衰复合材料母粒。
4.根据权利要求1所述的一种抗衰复合材料配方,其特征在于:所述促进剂由促进剂DM、促进剂NS和促进剂D按照质量比1∶0.3∶1的比例混合而成,分散剂为有机锌盐、润滑剂为亚乙基双硬脂酰胺、内脱模剂为脂肪酸钠,隔离剂为碳酸钙。
5.根据权利要求1所述的一种抗衰复合材料配方,其特征在于:所述抗衰剂的制备方法包括以下步骤:
S11,将纳米氧化锌投入甲醇溶液中,以2200r/min转速搅拌混合40min,得到纳米氧化锌分散液,然后调节纳米氧化锌分散液的pH至9.7,然后让纳米氧化锌分散液在微波和超声波协同作用下处理5min;
S12,向纳米氧化锌分散液中添加环氧化弹性体,调节温度至82℃,保温1.5小时,然后进行过滤,洗涤至中性,然后干燥粉碎后,过800目筛选筛进行筛选,获得改性纳米;
S13,先将改性纳米、纳米二氧化硅以及分散剂分散于乙醇溶液内,缓慢滴入正硅酸四乙酯乙醇溶液,室温条件下充分反应后加入硅烷偶联剂,在加热条件下继续充分反应后,得到抗衰剂。
6.根据权利要求5所述的一种抗衰复合材料配方,其特征在于:所述S11中分散剂为聚乙烯吡咯烷酮,S12中环氧化弹性体为醋酸乙烯酯基共聚物,所述S11中微波处理的功率为300W、超声波处理的功率为800W、超声波频率为30kHz。
7.根据权利要求3所述的一种抗衰复合材料配方,其特征在于:所述双螺杆挤出机的挤出温度为212℃-215℃,螺杆转速100-300r/min,双螺杆挤出的模唇物理尺寸为0.2mm-2m,压力18.5MPa~19MPa,停留时间5min~10min。
8.根据权利要求3所述的一种抗衰复合材料配方,其特征在于:所述混料机的混炼温度为175℃-180℃,混炼转速为400r/min-480r/min。
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