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CN102775776B - 玻纤增强pa6/pa66合金组合物及其制备方法 - Google Patents

玻纤增强pa6/pa66合金组合物及其制备方法 Download PDF

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CN102775776B
CN102775776B CN201210247652.6A CN201210247652A CN102775776B CN 102775776 B CN102775776 B CN 102775776B CN 201210247652 A CN201210247652 A CN 201210247652A CN 102775776 B CN102775776 B CN 102775776B
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polyamide
preparation
alloy composite
percent
glass fiber
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CN102775776A (zh
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郭建鹏
孟成铭
杨涛
陈晓东
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Shanghai Rizhisheng New Technology Development Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/04Particle-shaped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means 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
    • B29C48/40Means 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/92Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/9258Velocity
    • B29C2948/9259Angular velocity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92704Temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92857Extrusion unit
    • B29C2948/92876Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92885Screw or gear
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92857Extrusion unit
    • B29C2948/92876Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895Barrel or housing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

本发明公开了一种玻纤增强PA6/PA66合金组合物及其制备方法;所述组合物包括以下重量百分比含量的各组分:PA6?20~40%,PA66?15~35%,复配阻燃母粒2~10%,玻璃纤维22~35%,抗氧剂0.5~1%,润滑分散剂0.5~1%。按重量配比称取原料放入高混机中混合2~5分钟,出料,然后用双螺杆挤出机挤出造粒,加工温度在225~260℃,螺杆转数在30~40HZ。与现有技术相比,本发明的组合物具有高CTI值、低阻燃剂析出性、无卤环保、综合性能均衡等优势,可以广泛应用于接触器、漏电保护器、断路器外壳等电子电器领域的产品。

Description

玻纤增强PA6/PA66合金组合物及其制备方法
技术领域
本发明涉及一种玻纤增强合金材料,具体涉及一种玻纤增强PA6/PA66合金组合物及其制备方法。
背景技术
近年来,我国电子电气工业迅速发展,对高电绝缘阻燃增强工程塑料的需求日益增长,如低压真空接触器、断路器、漏电保护器、接插件、低压开关、薄壁电子电气元件等都需要用具有良好的综合力学性能、阻燃性能及电绝缘性能的工程塑料材料。在这一产品领域里,聚酰胺(PA)的用量最大。然而,由于阻燃剂的发展相对行业对材料日益提高的要求来说相对滞后,很多种阻燃剂加入到材料里会大大降低了材料的力学性能、电绝缘性能。例如,相比漏电起痕指数(CTI)从600V降到200V甚至更低,此外,随着欧盟RoHs和WEEE指令的实施,传统的溴系阻燃体系已不能满足此要求,同时某些阻燃剂的使用也会受到限制。
发明内容
本发明的目的在于克服上述现有技术存在的缺陷,提供一种玻纤增强PA6/PA66合金组合物及其制备方法。本发明的玻纤增强PA6/PA66合金组合物具有高CTI值、低阻燃剂析出性,无卤环保,综合力学性能优良等优点,可以广泛应用于接触器、漏电保护器、断路器外壳等电子电器领域的产品。
本发明的目的是通过以下的技术方案来实现:
本发明涉及一种玻纤增强PA6/PA66合金组合物,包括以下重量百分比含量的各组分:
优选地,所述的PA6的特性粘度为2.4dL/g。
优选地,所述的PA66的特性粘度为2.7dL/g。
优选地,所述复配阻燃母粒是由我公司自行复配,由三种组分混合而成,具体包括以下重量百分比含量的各组分:除铁赤磷母粒:50%;防迁移剂:25%;高CTI助剂:25%。
优选地,所述的玻璃纤维为表面经硅烷偶联剂处理的无碱玻璃纤维。
优选地,所述的抗氧剂为受阻酚类抗氧剂。
优选地,所述的润滑分散剂为硅酮。
本发明还涉及一种前述的玻纤增强PA6/PA66合金组合物的制备方法,具体为:将所述各组分按重量配比放入高混机中混合,出料,双螺杆挤出机挤出造粒,即可。
优选地,所述混合的时间为2~5分钟。
优选地,所述双螺杆挤出机的挤出温度为225~260℃,螺杆转数为30~40HZ。
与现有技术相比,本发明具有如下有益效果:
1、本发明采用复配阻燃母粒体系,和传统的阻燃母粒相比,复配阻燃母粒体系有以下特点:1)综合力学性能更高;2)能将CTI从320V提高到650V;3)克服了普通红磷在一定条件下迁移的制品表面,然后红磷在氧气和水的作用下最终形成对金属制件有腐蚀性的磷系酸性物质的缺陷。
2、本发明采用的抗氧剂为受阻酚类抗氧剂,可提高组合物在加工过程的抗氧化性能和使用过程中的抗老化性能。
3、本发明采用硅酮作为润滑剂,提高了材料加工流动性,降低摩擦系数,提高滑爽性,在特定的加工条件下采用分散性较好,停留时间短,剪切稍弱的组合,防止阻燃剂分解,从而保证了材料的质量稳定。
4、本发明制得的玻纤增强PA6/PA66合金组合物具有高CTI值、低阻燃剂析出性,无卤环保,综合性能均衡等优势,可以广泛应用于接触器、漏电保护器、断路器外壳等电子电器领域的产品。
具体实施方式
下面结合具体实施例对本发明进行详细说明。以下实施例将有助于本领域的技术人员进一步理解本发明,但不以任何形式限制本发明。应当指出的是,对本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进。这些都属于本发明的保护范围。
以下对比例和实施例中采用的PA6的特性粘度为2.4dL/g;PA66的特性粘度为2.7dL/g;玻璃纤维为表面经硅烷偶联剂处理的无碱玻璃纤维;抗氧剂为受阻酚类抗氧剂;润滑分散剂为硅酮。
对比例1~3
PA6/PA66合金组合物,包括表1所示的重量百分比含量的各组分;其制备方法如下:
(1)按表1所示的重量百分比含量称取原料,放入高混机中混合2~5分钟,出料;
(2)将上述混合好的原料加入双螺杆挤出机,挤出造粒,既得所述PA6/PA66合金组合物;所述双螺杆挤出机的挤出温度、螺杆转数等参数如表2所示。
实施例1~4
玻纤增强PA6/PA66合金组合物,包括表1所示的重量百分比含量的各组分;其制备方法如下:
(1)按表1所示的重量百分比含量称取原料,放入高混机中混合2~5分钟,出料;表1中的复配阻燃母粒包括以下质量百分比含量的各组分:除铁赤磷母粒:50%;防迁移剂:25%;高CTI助剂:25%;
(2)将上述混合好的原料加入双螺杆挤出机,挤出造粒,既得所述玻纤增强PA6/PA66合金组合物;所述双螺杆挤出机的挤出温度、螺杆转数等参数如表2所示。
表1对比例1~3及实施例1~4的原材料配方
表2
实施例5、性能测试
采用ASTM标准,对实施例1~4及对比例1~3制得的PA6/PA66合金组合物样品,进行性能测试对比。测试性能对比如表3所示:
表3
由表3可知,实施例1采用复配阻燃母粒体系制得的玻纤增强PA6/PA66合金组合物,与对比例1、2、3采用传统的阻燃母粒(除铁赤磷母粒)体系制得的PA6/PA66合金组合物相比,具有以下特点:
(1)综合力学性能更高:在拉伸强度、弯曲强度、弯曲模量、冲击强度等力学性能指标上均取得较大的提高;
(2)CTI值更高:将CTI从320V提高到650V;
(3)腐蚀性试验得到的PH值由酸性变为中性,说明本发明采用的复配阻燃母粒体系克服了传统阻燃母粒体系中普通红磷在一定条件下迁移的制品表面,然后红磷在氧气和水的作用下最终形成对金属制件有腐蚀性的磷系酸性物质的缺陷。
综上所述,本发明的玻纤增强PA6/PA66合金组合物具有高CTI值、低阻燃剂析出性,无卤环保,综合力学性能优良等优点,可以广泛应用于接触器、漏电保护器、断路器外壳等电子电器领域的产品。

Claims (4)

1.一种玻纤增强PA6/PA66合金组合物,其特征在于,该组合物由以下重量百分比含量的各组分组成:
所述的PA6的特性粘度为2.4dL/g;所述的PA66的特性粘度为2.7dL/g;所述复配阻燃母粒包括以下重量百分比含量的各组分:除铁赤磷母粒:50%;防迁移剂:25%;高CTI助剂:25%;所述的润滑分散剂为硅酮;所述的玻璃纤维为表面经硅烷偶联剂处理的无碱玻璃纤维;所述的抗氧剂为受阻酚类抗氧剂。
2.一种如权利要求1所述的玻纤增强PA6/PA66合金组合物的制备方法,其特征在于,所述制备方法具体为:将所述各组分按重量配比放入高混机中混合,出料,双螺杆挤出机挤出造粒,即可。
3.根据权利要求2所述的玻纤增强PA6/PA66合金组合物的制备方法,其特征在于,所述混合的时间为2~5分钟。
4.根据权利要求2所述的玻纤增强PA6/PA66合金组合物的制备方法,其特征在于,所述双螺杆挤出机的挤出温度为225~260℃,螺杆转数为30~40HZ。
CN201210247652.6A 2012-07-17 2012-07-17 玻纤增强pa6/pa66合金组合物及其制备方法 Expired - Fee Related CN102775776B (zh)

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CN109679338A (zh) * 2018-12-23 2019-04-26 德力西电气有限公司 一种低析出的无卤阻燃聚酰胺合金材料及其制备方法

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