CN102134392A - 一种具有高灼热丝温度的阻燃pa66复合材料及其工艺 - Google Patents

一种具有高灼热丝温度的阻燃pa66复合材料及其工艺 Download PDF

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CN102134392A
CN102134392A CN2011101036897A CN201110103689A CN102134392A CN 102134392 A CN102134392 A CN 102134392A CN 2011101036897 A CN2011101036897 A CN 2011101036897A CN 201110103689 A CN201110103689 A CN 201110103689A CN 102134392 A CN102134392 A CN 102134392A
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叶楚祥
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Shanghai Pugong Material Technology 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
    • B29C48/78Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/875Thermal 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
    • 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
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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
    • 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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Abstract

本发明涉及改性工程塑料领域,具体地说是一种具有高灼热丝温度的阻燃PA66复合材料及其工艺,其特征在于按照质量百分比配比如下:PA6673%,聚溴化苯乙烯20.3%,三氧化二锑4.33%,层状双羟基复合金属氧化物2.17%,聚四氟乙烯0.2%;所述复合材料的制作工艺包括以下步骤:将PA66在鼓风烘箱中于140℃下烘干4hr,按组分配方进行混合均匀;通过双螺杆挤出机中共混造粒,同时将得到的复合材料在注塑机中注塑成型;本发明优点在于:产品灼热丝起燃温度≥750℃,阻燃性94UL-V0级(0.8mm、1.6mm),保持了常规溴系阻燃PA66材料的良好力学性能,满足白色家电领域的电子元器件材料的要求。

Description

一种具有高灼热丝温度的阻燃PA66复合材料及其工艺
[技术领域]
本发明涉及改性工程塑料领域,具体地说是一种具有高灼热丝温度的阻燃PA66复合材料及其工艺。
[背景技术]
目前具有高灼热丝温度的阻燃PA66复合材料基本上是通过除添加阻燃体系外再添加第三组分的树脂(如:PC)或增强材料(如:玻纤或矿粉)得到的,但由此技术配方制成的材料本质上已经改变了常规溴系阻燃PA66的良好性能,同时存在吸潮性差、冲击韧性低、密度偏高、流动性不好等问题,特别是应用在无人看管的白色家电所采用的电子元器件(厚度在1.0mm以下)很容易出现开裂、发脆现象,因此目前的技术配方无法满足无人看管的白色家电所采用的电子元器件材料性能的要求。
[发明内容]
本发明的目的是针对上述不足,设计一种具有高灼热丝温度且同时保持PA66原有良好性能的阻燃PA66复合材料。
为了实现上述目的,本发明设计一种具有高灼热丝温度的阻燃PA66复合材料,包括PA66、聚溴化苯乙烯、三氧化二锑、层状双羟基复合金属氧化物和聚四氟乙烯,其特征在于按照质量百分比配比如下:
1、PA66:73%,
2、聚溴化苯乙烯:20.3%,
3、三氧化二锑:4.33%,
4、层状双羟基复合金属氧化物:2.17%,
5、聚四氟乙烯:0.2%。
所述层状双羟基复合金属氧化物采用镁铝碳酸根型水滑石。
一种具有高灼热丝温度的阻燃PA66复合材料的制作工艺,其特征在于包括以下步骤:
a、将PA66在鼓风烘箱中于140℃下烘干4hr,按组分配方进行混合均匀;
b、通过双螺杆挤出机中共混造粒,同时将得到的复合材料在注塑机中注塑成型。
所述双螺杆挤出机的各段温度依次为:275℃、270℃、265℃、260℃、255℃、250℃、255℃、260℃、260℃、265℃,螺杆转速:300转/分;所述注塑机各段温度依次为:260℃、270℃、280℃、275℃。
所述PA66复合材料性能如下:灼热丝起燃温度(GWIT)≥750℃,拉伸屈服强度在50mm/min条件下为66.0~66.7MPa,断裂伸长率为5.88~7.01%,拉伸弹性模量为3022~3443MPa,弯曲强度在2mm/min条件下为100.3~101.8MPa,弯曲模量为2618~2736MPa,IZOD缺口冲击强度在23℃条件下为4.6~5.1KJ/m2,热变形温度在1.82MPa条件下为121.0~121.4℃,UL94阻燃性(0.8mm、1.6mm)为V0级。
本发明与现有技术相比,其优点在于:在常规溴系配方中引入一种金属氧化物,同时与三氧化二锑复配,复配后的添加量与常规溴系配方体系中的三氧化二锑添加量一致,本发明所生产的产品灼热丝起燃温度(GWIT)≥750℃,阻燃性94UL-V0级(0.8mm、1.6mm),符合VDE标准,同时保持了常规溴系阻燃PA66材料的良好的力学性能,完全满足了无人看管的白色家电领域的电子元器件材料的要求。
[附图说明]
图1为本发明的具有高灼热丝温度的阻燃PA66复合材料的性能测试数据表;
图2为由本发明生产的具有高灼热丝温度的阻燃PA66复合材料,在不同厚度的状况下所获得的灼热丝起燃温度(GWIT)测试数据表。
[具体实施方式]
以下结合附图对本发明做进一步说明,这种制造技术对本专业的人士来说是清楚的。
本发明提供一种具有高灼热丝温度的阻燃PA66复合材料的配方,成份配比为:
1.PA66(聚酰胺PA66):73%,
2.聚溴化苯乙烯:20.3%,
3.三氧化二锑:4.33%,
4.层状双羟基复合金属氧化物(镁铝碳酸根型水滑石):2.17%,
5.聚四氟乙烯:0.2%。
本发明的工艺为:先按照配比将各组分混合均匀,通过同向双螺杆挤出机共混、挤出、冷却、切粒,同时将得到的复合材料在注塑机中注塑成标准样条。通过测试,完全满足制件厚度在0.8mm以上的灼热丝起燃温度(GWIT)≥750℃,阻燃性94UL-V0级(0.8mm、1.6mm),符合VDE要求,完全满足应用在无人看管的白色家电领域的电子元器件的材料要求,同时完全满足薄壁产品(厚度在0.8mm以下)的韧性要求和注塑工艺要求,比目前市面上的材料更加优异。
实施例:
1、原材料:
①PA66:A27,德国巴斯夫公司
②聚溴化苯乙烯:PBS-64HW,美国大湖公司
③三氧化二锑:云南木利锑业有限公司
④层状双羟基复合金属氧化物(镁铝碳酸根型水滑石):AC-106,广州呈和科技有限公司
⑤聚四氟乙烯:A100,四川晨光化工研究院
2、设备与仪器:
Figure BDA0000057239330000041
35同向双螺杆挤出机:SHJ-65B,南京广达化工设备有限公司
②熔体流动速率仪:XNR-400,承德金建检测仪器有限公司
③漏电起痕试验仪:LDQ-2,上海埃微电子科技有限公司
④水平垂直燃烧试验仪:HVL-75,上海埃微电子科技有限公司
⑤灼热丝试验仪:ZRF-JT,上海竞田电子科技有限公司
⑥塑料摆锤冲击试验机:ZGC7501-2,美特斯工业系统(中国)有限公司
⑦电子万能试验机:CMT6104,美特斯工业系统(中国)有限公司
⑧热变形维卡软化点试验机:ZWK1302-1,美特斯工业系统(中国)有限公司
⑨注塑机:PT80,宁波力劲有限公司
3、试样制备:
将PA66在鼓风烘箱中于140℃下烘干4hr,按发明内容的技术配方的组分配方进行混合均匀,然后通过双螺杆挤出机中共混造粒,同时将得到的复合材料在注塑机中注塑成标准样条。其中双螺杆挤出机的各段温度依次为:275℃、270℃、265℃、260℃、255℃、250℃、255℃、260℃、260℃、265℃,螺杆转速:300转/分。
注塑成型条件:注塑机各段温度依次为260℃、270℃、280℃、275℃。
制得的标准样条性能测试如图1、图2所示,灼热丝起燃温度(GWIT)≥750℃,拉伸屈服强度在50mm/min条件下为66.0~66.7MPa,断裂伸长率为5.88~7.01%,拉伸弹性模量为3022~3443MPa,弯曲强度在2mm/min条件下为100.3~101.8MPa,弯曲模量为2618~2736MPa,IZOD缺口冲击强度在23℃条件下为4.6~5.1KJ/m2,热变形温度在1.82MPa条件下为121.0~121.4℃,UL94阻燃性(0.8mm、1.6mm)为V0级。

Claims (5)

1.一种具有高灼热丝温度的阻燃PA66复合材料,包括PA66、聚溴化苯乙烯、三氧化二锑、层状双羟基复合金属氧化物和聚四氟乙烯,其特征在于按照质量百分比配比如下:
PA66:73%,
聚溴化苯乙烯:20.3%,
三氧化二锑:4.33%,
层状双羟基复合金属氧化物:2.17%,
聚四氟乙烯:0.2%。
2.如权利要求1所述的一种具有高灼热丝温度的阻燃PA66复合材料,其特征在于所述层状双羟基复合金属氧化物采用镁铝碳酸根型水滑石。
3.一种具有高灼热丝温度的阻燃PA66复合材料的制作工艺,其特征在于包括以下步骤:
a、将PA66在鼓风烘箱中于140℃下烘干4hr,按组分配方进行混合均匀;
b、通过双螺杆挤出机中共混造粒,同时将得到的复合材料在注塑机中注塑成型。
4.如权利要求3所述的一种具有高灼热丝温度的阻燃PA66复合材料的制作工艺,其特征在于所述双螺杆挤出机的各段温度依次为:275℃、270℃、265℃、260℃、255℃、250℃、255℃、260℃、260℃、265℃,螺杆转速:300转/分;所述注塑机各段温度依次为:260℃、270℃、280℃、275℃。
5.如权利要求1或3所述的一种具有高灼热丝温度的阻燃PA66复合材料及其制作工艺,所述PA66复合材料性能如下:灼热丝起燃温度≥750℃,拉伸屈服强度在50mm/min条件下为66.0~66.7MPa,断裂伸长率为5.88~7.01%,拉伸弹性模量为3022~3443MPa,弯曲强度在2mm/min条件下为100.3~101.8MPa,弯曲模量为2618~2736MPa,IZOD缺口冲击强度在23℃条件下为4.6~5.1KJ/m2,热变形温度在1.82MPa条件下为121.0~121.4℃,0.8mm和1.6mm厚度UL94阻燃性为V0级。
CN2011101036897A 2011-04-25 2011-04-25 一种具有高灼热丝温度的阻燃pa66复合材料及其工艺 Expired - Fee Related CN102134392B (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000022036A1 (de) * 1998-10-15 2000-04-20 L. Brüggemann KG Mit kupfersalz und aromatischer halogenverbindung stabilisierte polyamidzusammensetzung
CN101200591A (zh) * 2006-12-15 2008-06-18 上海杰事杰新材料股份有限公司 一种快速流动的耐高温尼龙复合材料
CN101218305A (zh) * 2005-07-08 2008-07-09 宝理塑料株式会社 阻燃性树脂组合物
CN101802098A (zh) * 2007-05-17 2010-08-11 三菱工程塑料株式会社 阻燃性聚酰胺树脂组合物

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000022036A1 (de) * 1998-10-15 2000-04-20 L. Brüggemann KG Mit kupfersalz und aromatischer halogenverbindung stabilisierte polyamidzusammensetzung
CN101218305A (zh) * 2005-07-08 2008-07-09 宝理塑料株式会社 阻燃性树脂组合物
CN101200591A (zh) * 2006-12-15 2008-06-18 上海杰事杰新材料股份有限公司 一种快速流动的耐高温尼龙复合材料
CN101802098A (zh) * 2007-05-17 2010-08-11 三菱工程塑料株式会社 阻燃性聚酰胺树脂组合物

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