CN102504528A - 中空玻璃微球填充纤维增强尼龙复合材料及其制备方法 - Google Patents
中空玻璃微球填充纤维增强尼龙复合材料及其制备方法 Download PDFInfo
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- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/88—Adding charges, i.e. additives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
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- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
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- B29C2948/92819—Location or phase of control
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Abstract
本发明公开了一种中空玻璃微球填充纤维增强尼龙复合材料及其制备方法。尼龙复合材料由50~80wt%尼龙、1~20wt%的中空玻璃微球、5~30wt%的纤维、0.3~0.5wt%的抗氧剂、1wt%的色母粒、0.5~3wt%的相容剂混合而成。本发明通过加入中空玻璃微球,能够改善纤维增强尼龙复合材料制品翘曲变形现象,同时降低纤维增强尼龙材料的密度,对于汽车减重,节能减排起到积极作用。
Description
技术领域
本发明属于高分子材料技术领域,具体涉及一种中空玻璃微球填充纤维增强尼龙复合材料及其制备方法,适合制造汽车进气歧管、发动机冷却水箱、汽车冷却风扇及电子电器部件、电动工具外壳以及各种机械零件等。
背景技术
目前市场上使用的纤维增强尼龙复合材料(玻璃纤维、碳纤维等)只是简单的纤维增强尼龙材料,该类材料具有良好的机械性能,表面光亮度、抗防冻液腐蚀性和良好的流动性。适合制造汽车进气歧管、发动机冷却水箱、汽车冷却风扇及电子电器部件、电动工具外壳、各种机械零件等。但是现有的纤维增强尼龙复合材料流动取向各向异性,内应力比较集中,制品容易产生翘曲变形现象,而且复合材料的密度偏大。
与本案背景技术相关的专利有:
CN 101445654 A 一种填料和玻璃纤维增强尼龙6材料及其制备方法;
CN 101760013 A 无卤玻纤增强尼龙6材料及其制作工艺;
CN 101619167 A 尼龙6+50%玻璃纤维塑料及注塑工艺;
CN 101525486 A 无卤玻纤增强尼龙树脂及其制备方法;
CN 101139462 A 一种碳纤维增强无卤阻燃尼龙66及其制备方法。
发明内容
本发明的目的是提出一种低密度、制品尺寸稳定性好的中空玻璃微球填充纤维增强尼龙复合材料及其制备方法。
本发明的尼龙复合材料由50~80wt%尼龙、1~20wt%的中空玻璃微球、5~30wt%的纤维、0.3~0.5wt%的抗氧剂、1wt%的色母粒、0.5~3wt%的相容剂混合而成。
所述的尼龙材料为下列聚合物中的一种或多种:
尼龙6、尼龙66、尼龙11、尼龙12、尼龙1010;
所述的中空玻璃微球:密度0.125g/cc~0.60g/cc,软化温度600℃,抗压强度250psi-18000psi;
所述的纤维为下列纤维中的一种或多种:
玻璃纤维、碳纤维、麻纤维、芳纶纤维;
所述的抗氧剂为抗氧剂1010与抗氧剂168复配而成;
所述的相容剂为下列相容剂中的一种或多种:
马来酸酐、硅烷偶联剂、铝酸脂偶联剂和钛酸酯偶联剂;
本发明提供了一种中空玻璃微球填充纤维增强尼龙复合材料的制备方法,该制备方法包括如下步骤:
1、按质量配比称取原料;
2、将尼龙、抗氧剂、色母粒、相容剂在高速搅拌机下混合搅拌5-20min,并将混合物料加入双螺杆挤出机主喂料料斗中;
3、在双螺杆挤出机专用纤维口处填加纤维;
4、在双螺杆专用侧喂料口处填加中空玻璃微球;
5、设定双螺杆挤出机各温区温度:
一区220~250℃,二区225~255℃,三区230~-260℃,四区235~265℃,五区240~270℃,六区245~270℃,七区250~270℃,八区240~260℃,九区235~255℃,主机转速100~200 rpm;
6、挤出造粒,干燥切粒。
本发明通过加入中空玻璃微球,能够改善纤维增强尼龙复合材料制品翘曲变形现象,同时降低纤维增强尼龙材料的密度,对于汽车减重,节能减排起到积极作用。
具体实施方式
实施例1:
将62wt%尼龙6, 0.3wt%的抗氧剂,1wt%的色母粒,1.7wt%的马来酸酐加入高速搅拌机中搅拌10min,将上述混合物料加入双螺杆挤出机主喂料中,再将5wt%的中空玻璃微球、30wt%的玻璃纤维分别加入双螺杆机专门的侧喂料入口和专门的纤维入口,加工温度设定如下:
一区220℃,二区225℃,三区230℃,四区235℃,五区240℃,六区245℃,七区250℃,八区240℃,九区235℃,主机转速150rpm。
对比例1:
将67wt%尼龙6, 0.3wt%的抗氧剂,1wt%的色母粒,1.7wt%的马来酸酐加入高速搅拌机中搅拌10min,将上述混合物料加入双螺杆挤出机主喂料中,30wt%的玻璃纤维分别加入双螺杆机专门的侧喂料入口和专门的纤维入口,加工温度设定如下:
一区220℃,二区225℃,三区230℃,四区235℃,五区240℃,六区245℃,七区250℃,八区240℃,九区235℃,主机转速150rpm。
实施例2:
将62wt%尼龙66, 0.3wt%的抗氧剂,1wt%的色母粒,1.7wt%的硅烷偶联剂KH550加入高速搅拌机中搅拌10min,将上述混合物料加入双螺杆挤出机主喂料中,再将10wt%的中空玻璃微球、25wt%的玻璃纤维分别加入双螺杆机专门的侧喂料入口和专门的纤维入口,加工温度设定如下:
一区240℃,二区245℃,三区250℃,四区255℃,五区260℃,六区265℃,七区270℃,八区265℃,九区260℃,主机转速150rpm。
对比例2:
将62wt%尼龙66, 0.3wt%的抗氧剂,1wt%的色母粒,1.7wt%的硅烷偶联剂KH550加入高速搅拌机中搅拌10min,将上述混合物料加入双螺杆挤出机主喂料中,再将10wt%的滑石粉、25wt%的玻璃纤维分别加入双螺杆机专门的侧喂料入口和专门的纤维入口,加工温度设定如下:
一区240℃,二区245℃,三区250℃,四区255℃,五区260℃,六区265℃,七区270℃,八区265℃,九区260℃,主机转速150rpm。
实施例3:
将62wt%尼龙6, 0.3wt%的抗氧剂,1wt%的色母粒,1.7wt%的马来酸酐加入高速搅拌机中搅拌10min,将上述混合物料加入双螺杆挤出机主喂料中,再将15wt%的中空玻璃微球、20wt%的碳纤维分别加入双螺杆机专门的侧喂料入口和专门的纤维入口,加工温度设定如下:
一区240℃,二区245℃,三区250℃,四区255℃,五区260℃,六区265℃,七区270℃,八区265℃,九区260℃,主机转速150rpm。
对比例3:
将62wt%尼龙6, 0.3wt%的抗氧剂,1wt%的色母粒,1.7wt%的马来酸酐加入高速搅拌机中搅拌10min,将上述混合物料加入双螺杆挤出机主喂料中,再将15wt%的滑石粉、20wt%的碳纤维分别加入双螺杆机专门的侧喂料入口和专门的纤维入口,加工温度设定如下:
一区240℃,二区245℃,三区250℃,四区255℃,五区260℃,六区265℃,七区270℃,八区265℃,九区260℃,主机转速150rpm。
实施例与对比例性能参数对比:
测试项目 | 单位 | 测试方法 | 实施例1 | 对比例1 | 实施例2 | 对比例2 | 实施例3 | 对比例3 |
密度 | g/cm3 | ISO 1183 | 1.27 | 1.36 | 1.17 | 1.31 | 1.07 | 1.26 |
拉伸强度 | MPa | ISO 527 | 128 | 134 | 128 | 136 | 196 | 215 |
弯曲强度 | MPa | ISO 178 | 198 | 192 | 182 | 198 | 265 | 290 |
弯曲模量 | MPa | ISO 178 | 6020 | 6150 | 6120 | 6380 | 1475 | 16500 |
缺口冲击强度 | KJ/m2 | ISO180 | 15.5 | 16 | 10.3 | 11.2 | 5.6 | 6.3 |
收缩率 | % | — | 0.4 | 0.5 | 0.55 | 0.7 | 0.4 | 0.6 |
从实施例与对比例性能参数对比表中可以看出,加入中空玻璃微球后纤维增强尼龙材料的密度在减小,这就意味着复合材料的重量减轻,对于其应用在汽车零部件上有着节能减排的意义;另外填加中空玻璃微球后纤维增强尼龙材料的收缩率在变小,对于提高纤维增强尼龙材料制品的尺寸稳定性有着很好的作用。
Claims (8)
1.一种尼龙复合材料,由50~80wt%尼龙、1~20wt%的中空玻璃微球、5~30wt%的纤维、0.3~0.5wt%的抗氧剂、1wt%的色母粒和0.5~3wt%的相容剂混合而成。
2.根据权利要求1所述的尼龙复合材料,其特征在于,所述的中空玻璃微球:密度0.125g/cc~0.60g/cc,软化温度600℃,抗压强度250psi-18000psi。
3.根据权利要求1或2所述的尼龙复合材料,其特征在于,
所述的尼龙为下列聚合物中的一种或多种:尼龙6、尼龙66、尼龙11、尼龙12、尼龙1010;
所述的纤维为下列纤维中的一种或多种:玻璃纤维、碳纤维、麻纤维、芳纶纤维;
所述的抗氧剂为抗氧剂1010与抗氧剂168复配而成;
所述的相容剂为下列相容剂中的一种或多种:马来酸酐、硅烷偶联剂、铝酸脂偶联剂、钛酸酯偶联剂。
4.根据权利要求1所述的尼龙复合材料,其特征在于:由62wt%尼龙6、 0.3wt%的抗氧剂、1wt%的色母粒、1.7wt%、5wt%的中空玻璃微球和30wt%的玻璃纤维组成。
5.根据权利要求1所述的尼龙复合材料,其特征在于:由62wt%尼龙66、 0.3wt%的抗氧剂、1wt%的色母粒、1.7wt%的硅烷偶联剂KH550、10wt%的中空玻璃微球和25wt%的玻璃纤维组成。
6.权利要求1-5任一项所述的尼龙复合材料的制备方法,包括如下步骤:
1)、按质量配比称取原料;
2)、将尼龙、抗氧剂、色母粒、相容剂在高速搅拌机下混合搅拌5-20min,并将混合物料加入双螺杆挤出机主喂料料斗中;
3)、在双螺杆挤出机专用纤维口处填加纤维;
4)、在双螺杆专用侧喂料口处填加中空玻璃微球;
5)、 设定双螺杆挤出机各温区温度:一区220~250℃,二区225~255℃,三区230~-260℃,四区235~265℃,五区240~270℃,六区245~270℃,七区250~270℃,八区240~260℃,九区235~255℃,设定主机转速100~200 rpm;
6)、挤出造粒,干燥切粒。
7.根据权利要求6所述的制备方法,其特征在于:
设定双螺杆挤出机各温区温度:一区220℃,二区225℃,三区230℃,四区235℃,五区240℃,六区245℃,七区250℃,八区240℃,九区235℃;
设定主机转速150rpm。
8.根据权利要求6所述的制备方法,其特征在于:
设定双螺杆挤出机各温区温度:一区240℃,二区245℃,三区250℃,四区255℃,五区260℃,六区265℃,七区270℃,八区265℃,九区260℃;
设定主机转速150rpm。
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