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 PDFInfo
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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
- 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
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
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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
- B29C2948/92885—Screw or gear
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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
- B29C2948/92895—Barrel or housing
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- 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
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。
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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)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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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)
Publication number | Priority date | Publication date | Assignee | Title |
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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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