CN103351612A - 一种可屏蔽电磁波的尼龙的制备方法 - Google Patents
一种可屏蔽电磁波的尼龙的制备方法 Download PDFInfo
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
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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
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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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
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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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- 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
- 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
- B29C48/92—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
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
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Abstract
本发明涉及一种可屏蔽电磁波的尼龙的制备方法,该方法包括下列步骤:称取聚酰胺纤维于90℃下干燥4小时,然后和二氧化硅、二氧化锆、界面偶联剂、增韧剂和分散润滑剂,于高速搅拌机中以1100转/分钟搅拌5分钟,待均匀后放出;把混合均勺的物料加入长径比(L/D)为40的双螺杆挤出机中,双螺杆挤出机的加工温度:一区温度180℃,二区温度为185℃,三区温度为195℃,四区温度为210℃,五区温度为215℃,六区温度为225℃,七区温度为235℃,八区温度为240℃,主机转速为320转/min;经过挤出后冷却牵条、风干切粒,即制备本发明所述的可屏蔽电磁波的尼龙。本发明所述的方法制得的尼龙可屏蔽电磁波。
Description
技术领域
本发明涉及尼龙领域,具体的说,本发明涉及一种可屏蔽电磁波的尼龙的制备方法。
背景技术
聚酰胺纤维俗称尼龙,其用途非常广泛,汽车工业常用于制造汽车零部件如仪表板、车身外板、内装饰板、方向盘、隔音板、门锁、保险杠、通风管等,家电行业常用于制造如电冰箱、电视机、洗衣机、真空吸尘器、食品搅拌器、电话机的壳体等,在建筑装饰行业常用于制造如卫生器具、游泳池衬里、管材和管件等,另外还用于制造安全帽、摩托车档板、鞋后跟、雪地运动用品、玩具、时钟、音箱外壳、手提箱、纽扣、化妆品盒等日用品和铭牌、装饰品等广告品。
尽管聚酰胺纤维应用广泛,但由于聚酰胺纤维本身分子结构性能的特性,使得聚酰胺纤维在屏蔽性方面不足。
发明内容
本发明的目的在于提供一种可屏蔽电磁波的尼龙的制备方法。
为了实现本发明的目的,本发明提供一种可屏蔽电磁波的尼龙的制备方法,该方法包括下列步骤:称取聚酰胺纤维于90℃下干燥4小时,然后和二氧化硅、二氧化锆、界面偶联剂、增韧剂和分散润滑剂,于高速搅拌机中以1100转/分钟搅拌5分钟,待均匀后放出;把混合均勺的物料加入长径比(L/D)为40的双螺杆挤出机中,双螺杆挤出机的加工温度:一区温度180℃,二区温度为185℃,三区温度为195℃,四区温度为210℃,五区温度为215℃,六区温度为225℃,七区温度 为235℃,八区温度为240℃,主机转速为320转/min;经过挤出后冷却牵条、风干切粒,即制备本发明所述的可屏蔽电磁波的尼龙。
优选地,各种原料的用量如下:
聚酰胺纤维 40~70重量份;
界面偶联剂 3~8重量份;
增韧剂 3~10重量份;
分散润滑剂 0.5~1.0重量份;
二氧化硅 5~10重量份;
二氧化锆 10~15重量份。
优选地,所述界面偶联剂为γ-氨丙基三乙氧基硅烷(KH550)、γ-缩水甘油醚氧丙基三甲氧基硅烷(KH560)、γ-(甲基丙烯酰氧)丙基三甲氧基硅烷(KH570)、聚酰胺纤维接枝马来酸(聚酰胺纤维-g-MAH)、苯乙烯-马来酸酐共聚物(SMA)、聚乙烯接枝马来酸酐(LDPE-g-MAH)、线性低密度聚乙烯接枝马来酸酐(LLDPE-g-MAH)、缩水甘油醚型环氧树脂中的一种或几种。
优选地,所述增韧剂为甲基丙烯酸甲酯-丁二烯-苯乙烯共聚物(MBS)、甲基丙烯酸甲酯-丁二烯-苯乙烯共聚物、氢化苯乙烯/丁二烯/苯乙烯)嵌段共聚物(SEBS)中的一种或几种。
优选地,所述分散润滑剂为硬脂酸单甘油酯、三硬脂酸甘油酯、乙撑双硬脂酰胺、乙撑双月桂酰胺、乙撑双油酸酰胺、低分子量离聚物、乙烯-丙烯酸共聚物、乙烯-醋酸乙烯共聚物中的一种或几种。
优选地,各种原料的用量如下:
聚酰胺纤维 60重量份;
γ-氨丙基三乙氧基硅烷 5重量份;
甲基丙烯酸甲酯-丁二烯-苯乙烯共聚物 5重量份;
硬脂酸单甘油酯 0.8重量份;
二氧化硅 8重量份;
二氧化锆 13重量份。
本发明所述的方法制得的尼龙可屏蔽电磁波。
具体实施方式
以下通过具体实施方式的描述对本发明作进一步说明,但这并非是对本发明的限制,本领域技术人员根据本发明的基本思想,可以做出各种修改或改进,但是只要不脱离本发明的基本思想,均在本发明的范围之内。
实施例1
称取600克的聚酰胺纤维于90℃下干燥4小时,然后和二氧化硅80克、二氧化锆130克、γ-氨丙基三乙氧基硅烷50克、甲基丙烯酸甲酯-丁二烯-苯乙烯共聚物50克和硬脂酸单甘油酯8克,于高速搅拌机中以1100转/分钟搅拌5分钟,待均匀后放出。把混合均勺的物料加入长径比(L/D)为40的双螺杆挤出机中,双螺杆挤出机的加工温度:一区温度180℃,二区温度为185℃,三区温度为195℃,四区温度为210℃,五区温度为215℃,六区温度为225℃,七区温度为235℃,八区温度为240℃,主机转速为320转/min;经过挤出后冷却牵条、风干切粒,即制备本发明所述的可屏蔽电磁波的尼龙。
实施例2
按照和实施例1相同的方式制备可屏蔽电磁波的尼龙,不同之处在于不使用二氧化硅。
实施例3
按照和实施例1相同的方式制备可屏蔽电磁波的尼龙,不同之处 在于不使用二氧化锆。
实验例
按GB50057-94(2000版)要求进行测试电磁波屏蔽性,结果如下:实施例1的电磁屏蔽效率(dB)为102,实施例2的可屏蔽电磁波的尼龙的表面电阻率(Ω)为65,实施例3的可屏蔽电磁波的尼龙的表面电阻率(Ω)为72。由此可见,加入二氧化硅和二氧化锆产生了出乎意料地协同作用。
Claims (6)
1.一种可屏蔽电磁波的尼龙的制备方法,该方法包括下列步骤:称取聚酰胺纤维于90℃下干燥4小时,然后和二氧化硅、二氧化锆、界面偶联剂、增韧剂和分散润滑剂,于高速搅拌机中以1100转/分钟搅拌5分钟,待均匀后放出;把混合均勺的物料加入长径比(L/D)为40的双螺杆挤出机中,双螺杆挤出机的加工温度:一区温度180℃,二区温度为185℃,三区温度为195℃,四区温度为210℃,五区温度为215℃,六区温度为225℃,七区温度为235℃,八区温度为240℃,主机转速为320转/min;经过挤出后冷却牵条、风干切粒,即制备本发明所述的可屏蔽电磁波的尼龙。
2.根据权利要求1所述的方法,其特征在于,各种原料的用量如下:
聚酰胺纤维 40~70重量份;
界面偶联剂 3~8重量份;
增韧剂 3~10重量份;
分散润滑剂 0.5~1.0重量份;
二氧化硅 5~10重量份;
二氧化锆 10~15重量份。
3.根据权利要求1所述的方法,其特征在于,所述界面偶联剂为γ-氨丙基三乙氧基硅烷(KH550)、γ-缩水甘油醚氧丙基三甲氧基硅烷(KH560)、γ-(甲基丙烯酰氧)丙基三甲氧基硅烷(KH570)、聚酰胺纤维接枝马来酸(聚酰胺纤维-g-MAH)、苯乙烯-马来酸酐共聚物(SMA)、聚乙烯接枝马来酸酐(LDPE-g-MAH)、线性低密度聚乙烯接枝马来酸酐(LLDPE-g-MAH)、缩水甘油醚型环氧树脂中的一种或几种。
4.根据权利要求1所述的方法,其特征在于,所述增韧剂为甲基丙烯酸甲酯-丁二烯-苯乙烯共聚物(MBS)、甲基丙烯酸甲酯-丁二烯-苯乙烯共聚物、氢化苯乙烯/丁二烯/苯乙烯)嵌段共聚物(SEBS)中的一种或几种。
5.根据权利要求1所述的方法,其特征在于,所述分散润滑剂为硬脂酸单甘油酯、三硬脂酸甘油酯、乙撑双硬脂酰胺、乙撑双月桂酰胺、乙撑双油酸酰胺、低分子量离聚物、乙烯-丙烯酸共聚物、乙烯-醋酸乙烯共聚物中的一种或几种。
6.根据权利要求2至5中任一项所述的方法,其特征在于,各种原料的用量如下:
聚酰胺纤维 60重量份;
γ-氨丙基三乙氧基硅烷 5重量份;
甲基丙烯酸甲酯-丁二烯-苯乙烯共聚物 5重量份;
硬脂酸单甘油酯 0.8重量份;
二氧化硅 8重量份;
二氧化锆 13重量份。
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CN107189417A (zh) * | 2017-07-18 | 2017-09-22 | 梧州井儿铺贸易有限公司 | 一种可屏蔽电磁波的尼龙 |
CN115403924A (zh) * | 2022-09-19 | 2022-11-29 | 会通新材料股份有限公司 | 吸波导热聚酰胺组合物及其制备方法 |
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WO2008134030A1 (en) * | 2007-04-24 | 2008-11-06 | E. I. Du Pont De Nemours And Company | Thermoplastic resin composition having electromagnetic interference shielding properties |
CN101285170A (zh) * | 2008-05-08 | 2008-10-15 | 兰州大学 | 制备宽频带吸波磁性多层膜的方法 |
CN102942782A (zh) * | 2012-10-24 | 2013-02-27 | 常州大学 | 一种持续高温环境下使用的连续碳纤维增强尼龙复合材料及制备方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN107189417A (zh) * | 2017-07-18 | 2017-09-22 | 梧州井儿铺贸易有限公司 | 一种可屏蔽电磁波的尼龙 |
CN115403924A (zh) * | 2022-09-19 | 2022-11-29 | 会通新材料股份有限公司 | 吸波导热聚酰胺组合物及其制备方法 |
CN115403924B (zh) * | 2022-09-19 | 2024-02-20 | 会通新材料股份有限公司 | 吸波导热聚酰胺组合物及其制备方法 |
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