CN102964818A - 一种复合增韧尼龙材料的制备工艺 - Google Patents

一种复合增韧尼龙材料的制备工艺 Download PDF

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CN102964818A
CN102964818A CN2012104269639A CN201210426963A CN102964818A CN 102964818 A CN102964818 A CN 102964818A CN 2012104269639 A CN2012104269639 A CN 2012104269639A CN 201210426963 A CN201210426963 A CN 201210426963A CN 102964818 A CN102964818 A CN 102964818A
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nylon
powder
nylon material
modification
calcite
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CN102964818B (zh
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关建军
元妍妍
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BENGBU XINDA AUTOMOBILE ELECTRONIC Co Ltd
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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
    • 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
    • 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
    • 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
    • B29C2948/9258—Velocity
    • B29C2948/9259—Angular velocity
    • 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
    • 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
    • B29C2948/92885—Screw or gear
    • 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
    • B29C2948/92895—Barrel or housing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

本发明公开了一种复合增韧尼龙材料的制备工艺，将所得改性尼龙PA6与PA66+15%GF等比例混匀后，得到的混合物经主喂料口加入双螺杆挤出机中，控制加工温度在230-245℃，螺杆转数在300-400rpm，熔融后挤出造粒即得到改性尼龙料产品。本发明解决了现有尼龙材料普遍耐高温性能差，强度低等性能缺陷，与其余原料复合，所得产品质量稳定，提高了生产效率，降低了生产成本，纳米粉体与经过处理的方解石粉复配，增强了本发明注塑成型后所得产品的尺寸稳定性。

Description

一种复合增韧尼龙材料的制备工艺
技术领域
    本发明涉及尼龙材料领域，确切地说是一种复合增韧尼龙材料的制备工艺。
背景技术
由于尼龙具有很多的特性，因此，在汽车、电气设备、机械部构、交通器材、纺织、造纸机械等方面得到广泛应用。
随着汽车的小型化、电子电气设备的高性能化、机械设备轻量化的进程加快，对尼龙的需求将更高更大。特别是尼龙作为结构性材料，对其强度、耐热性、耐寒性等方面提出了很高的要求。尼龙的固有缺点也是限制其应用的重要因素，特别是对于PA6、PA66两大品种来说，与PA46、PAl2等品种比具有很强的价格优势，虽某些性能不能满足相关行业发展的要求。因此，必须针对某一应用领域，通过改性，提高其某些性能，来扩大其应用领域。 由于PA强极性的特点，吸湿性强，尺寸稳定性差，但可以通过改性来改善。
发明内容
为了缓解现有技术的不足和缺陷，本发明的目的在于提供一种所得产品强度高，尺寸稳定性好的复合增韧尼龙材料的制备工艺。
上述目的通过以下方案实现：
   一种复合增韧尼龙材料的制备工艺，其特征在于，包括以下步骤：
（1）将尼龙PA6在100-110℃下干燥7-9小时；
（2）将方解石粉用浓度为10-15%的盐酸溶液浸泡2-3小时，去离子水洗涤，至中性，烘干，得经过处理的方解石粉备用；
（3）将白云石粉在500-550℃下烧损6-7小时，后研磨成纳米粉末，拌入相当于粉体重量1-3%的甘油三醋酸酯搅拌均匀，烘干，粉碎成粉末，即得改性纳米白云石粉；
（4）按重量份称取制备改性尼龙PA6所需各原料，置于高混机中混合3-6min，得到的混合物经主喂料口加入双螺杆挤出机中，控制加工温度在260-270℃，螺杆转速在500-600rpm，熔融后挤出造粒即得到改性尼龙PA6；
所述的改性尼龙PA6由下述重量份的原料制得：尼龙PA6  70-75，聚-4-甲基-1-戊烯 4-5，聚己酸内酯7-9，硅油0.2-0.4，乙烯基三乙氧基硅烷 1-2，抗氧剂168  0.1-0.2，抗氧剂1010 0.5-0.8，氧化聚乙烯蜡0.8-1，硬脂酸锌1-1.2，改性纳米白云石粉3-5，经过处理的方解石粉2-4，二苯胺0.1-0.2；
（5）将所得改性尼龙PA6与PA66+15%GF等比例混匀后，得到的混合物经主喂料口加入双螺杆挤出机中，控制加工温度在230-245℃，螺杆转数在300-400rpm，熔融后挤出造粒即得到改性尼龙料产品。
所述的经过处理的方解石粉细度为100-200目。
本发明的有益效果为：
本发明解决了现有尼龙材料普遍耐高温性能差，强度低等性能缺陷，与其余原料复合，所得产品质量稳定，提高了生产效率，降低了生产成本。纳米粉体与经过处理的方解石粉复配，增强了本发明注塑成型后所得产品的尺寸稳定性。
具体实施方式
一种复合增韧尼龙材料的制备工艺，包括以下步骤：
（1）将尼龙PA6在100℃下干燥8小时；
（2）将方解石粉用浓度为10%的盐酸溶液浸泡3小时，去离子水洗涤，至中性，烘干，得经过处理的方解石粉备用；
（3）将白云石粉在550℃下烧损7小时，后研磨成纳米粉末，拌入相当于粉体重量3%的甘油三醋酸酯搅拌均匀，烘干，粉碎成粉末，即得改性纳米白云石粉；
（4）按重量份称取制备改性尼龙PA6所需各原料，置于高混机中混合6min，得到的混合物经主喂料口加入双螺杆挤出机中，控制加工温度在270℃，螺杆转速在600rpm，熔融后挤出造粒即得到改性尼龙PA6；
所述的改性尼龙PA6由下述重量份（kg）的原料制得：尼龙PA6  73，聚-4-甲基-1-戊烯  5，聚己酸内酯7，硅油0.2，乙烯基三乙氧基硅烷 2，抗氧剂168  0.1，抗氧剂1010  0.8，氧化聚乙烯蜡 1，硬脂酸锌 1.2，改性纳米白云石粉5，经过处理的方解石粉4，二苯胺0.2；
（5）将所得改性尼龙PA6与PA66+15%GF等比例混匀后，得到的混合物经主喂料口加入双螺杆挤出机中，控制加工温度在245℃，螺杆转数在380rpm，熔融后挤出造粒即得到改性尼龙料产品。
所述的经过处理的方解石粉细度为200目。
本实施例注塑成型后所得产品的性能检测：
试验项目 测试方法 测试数据
拉伸强度 ASTM D638 131 MPa
弯曲强度 ASTM D790 144MPa
缺口冲击强度（23℃） ASTM D256 90KJ/㎡
热变形温度 ASTM D648 227℃

Claims (2)

1.一种复合增韧尼龙材料的制备工艺，其特征在于，包括以下步骤：
（1）将尼龙PA6在100-110℃下干燥7-9小时；
（2）将方解石粉用浓度为10-15%的盐酸溶液浸泡2-3小时，去离子水洗涤，至中性，烘干，得经过处理的方解石粉备用；
（3）将白云石粉在500-550℃下烧损6-7小时，后研磨成纳米粉末，拌入相当于粉体重量1-3%的甘油三醋酸酯搅拌均匀，烘干，粉碎成粉末，即得改性纳米白云石粉；
（4）按重量份称取制备改性尼龙PA6所需各原料，置于高混机中混合3-6min，得到的混合物经主喂料口加入双螺杆挤出机中，控制加工温度在260-270℃，螺杆转速在500-600rpm，熔融后挤出造粒即得到改性尼龙PA6；
所述的改性尼龙PA6由下述重量份的原料制得：尼龙PA6  70-75，聚-4-甲基-1-戊烯 4-5，聚己酸内酯7-9，硅油0.2-0.4，乙烯基三乙氧基硅烷 1-2，抗氧剂168  0.1-0.2，抗氧剂1010 0.5-0.8，氧化聚乙烯蜡0.8-1，硬脂酸锌1-1.2，改性纳米白云石粉3-5，经过处理的方解石粉2-4，二苯胺0.1-0.2；
（5）将所得改性尼龙PA6与PA66+15%GF等比例混匀后，得到的混合物经主喂料口加入双螺杆挤出机中，控制加工温度在230-245℃，螺杆转数在300-400rpm，熔融后挤出造粒即得到改性尼龙料产品。
2.根据权利要求1所述的一种复合增韧尼龙材料的制备工艺，其特征在于：所述的经过处理的方解石粉细度为100-200目。
CN201210426963.9A 2012-10-31 2012-10-31 一种复合增韧尼龙材料的制备工艺 Expired - Fee Related CN102964818B (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104830028A (zh) * 2015-05-27 2015-08-12 陕西科技大学 一种提高尼龙6纤维增强复合材料界面结合强度的方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1318657A (zh) * 2000-04-04 2001-10-24 石美秀 含功能性矿物粉末纤维的制法及由此制备的纤维
EP1867461A1 (fr) * 2006-06-12 2007-12-19 Tarkett SAS Produits multicouches
CN101356205A (zh) * 2005-11-04 2009-01-28 可泰克斯有限合伙公司 具有抗冲击性的热塑性树脂的生产方法
CN101460573A (zh) * 2006-06-09 2009-06-17 欧米亚发展集团 无机和/或有机微粒和纳米白云石颗粒的复合物

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1318657A (zh) * 2000-04-04 2001-10-24 石美秀 含功能性矿物粉末纤维的制法及由此制备的纤维
CN101356205A (zh) * 2005-11-04 2009-01-28 可泰克斯有限合伙公司 具有抗冲击性的热塑性树脂的生产方法
CN101460573A (zh) * 2006-06-09 2009-06-17 欧米亚发展集团 无机和/或有机微粒和纳米白云石颗粒的复合物
EP1867461A1 (fr) * 2006-06-12 2007-12-19 Tarkett SAS Produits multicouches

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104830028A (zh) * 2015-05-27 2015-08-12 陕西科技大学 一种提高尼龙6纤维增强复合材料界面结合强度的方法

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