CN107286467A - 一种聚丙烯拒水无纺布专用色母粒及其制备方法 - Google Patents
一种聚丙烯拒水无纺布专用色母粒及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种聚丙烯拒水无纺布专用色母粒,由包括聚丙烯树脂、钛白粉、分散剂、乙烯‑醋酸乙烯共聚物、二氧化硅、偶联剂、助剂、高温稳定剂的原料制备而成。本发明还公开了所述聚丙烯拒水无纺布专用色母粒的制备方法。
Description
技术领域
本发明属于色母粒制造领域,更具体地,本发明为一种聚丙烯拒水无纺布专用色母粒及其制备方法。
背景技术
无纺布是由定向的或随机的纤维而构成,是新一代环保材料,具有防潮、透气、柔韧、质轻、不助燃、容易分解、无毒无刺激性、色彩丰富、价格低廉、可循环再用等特点。无纺布突破了传统的纺织原理,并具有工艺流程短、生产速度快,产量高、成本低、用途广、原料来源多等特点,因此,近20年来,无纺布产业得到了迅速和惊人的发展。普通的无纺布是没有功能的,如果要带上其他的多种功能,需要对无纺布进行加功能后整理。
目前对无纺布进行加功能后整理一般采用在线式和离线式的方法,但无论是在线式或是离线式,都需要添置相应机器和原料,增加加工步骤,这无疑复杂了工艺,增加了成本。无纺布的加功能还有一种色母粒法,可加亲水、拒水、抗静电、抗酒精及抗血液等功能,减省了工艺步骤,大大节约了加工时间和成本,但是在实际操作中往往出现色母粒添加的不均匀的情况,堵塞喷丝板,造成喷丝板的维修及更换,另外,会引起可纺性问题,并丝及滴浆。一个极微小的浆滴,往往引起亲水、拒水、抗静电、抗酒精及抗血液的功能失败。因此,迫切需要对功能色母粒的配方进行改良,避免上述情况的发生。
发明内容
为了解决上述问题,本发明的一个方面提供一种聚丙烯拒水无纺布专用色母粒,以重量份计,其制备原料包含以下组分:
聚丙烯树脂 40~80份
钛白粉 30~50份
分散剂 15~25份
乙烯-醋酸乙烯共聚物 25~35份
二氧化硅 5~9份
偶联剂 4~10份
助剂 2~5份
高温稳定剂 2~5份
优选的,所述聚丙烯拒水无纺布专用色母粒,以重量份计,其制备原料包含以下组分:
聚丙烯树脂 55~65份
钛白粉 35~45份
分散剂 20~25份
乙烯-醋酸乙烯共聚物 28~32份
二氧化硅 6~8份
偶联剂 5~8份
助剂 3~4份
高温稳定剂 3~4份
更优选的,所述聚丙烯拒水无纺布专用色母粒,以重量份计,其制备原料包含以下组分:
聚丙烯树脂 60份
钛白粉 40份
分散剂 23份
乙烯-醋酸乙烯共聚物 30份
二氧化硅 8份
偶联剂 7份
助剂 4份
高温稳定剂 4份
在一种实施方式中,所述分散剂为聚丙烯蜡、重质碳酸钙、硬脂酸酰胺和乙醇按3:2:2:1的比例混合,混合物加入砂磨分散机,在1500转/分钟的转速下进行研磨,研磨颗粒平均粒径控制在0.2~0.5µm。
在一种实施方式中,所述偶联剂为甲基丙烯酸氯铬。
在一种实施方式中,所述助剂为硬脂酸酰胺和聚甲基丙烯酸甲酯的混合物,混合比例为1:1。
在一种实施方式中,所述高温稳定剂为聚酯蜡。
本发明的另一方面提供所述聚丙烯拒水无纺布专用色母粒的制备方法,包含如下步骤:
1、将聚丙烯树脂40~80份、钛白粉30~50份、分散剂15~25份、乙烯-醋酸乙烯共聚物25~35份、二氧化硅5~9份和偶联剂4~10份依次加入低速搅拌机中,以100转/分钟室温混合处理2~5分钟。在混合物中加入助剂2~5份和高温稳定剂2~5份,再用高速混合机以2000转/分钟高速混合8~10分钟。
2、将步骤1得到混合料用螺杆挤出机塑化挤出,挤出机中5个温区温度设定分别为170℃、180℃、190℃、180℃、190℃,主机转速为500~800转/分钟,挤出物在10~20℃中冷却。
3、所得物硬化后使用切粒机造粒,过震动筛,除去不规则产品,通风,待色母粒完全冷却并干燥后即得到成品。
与现有的技术相比,本发明的有益效果为:
1、耐光性、耐气候性、耐热性好,使用方便卫生,易于分散和添加。着色能力强,色差小,能有效减少纺丝过程中的并丝、断丝、滴丝现象。
2、与聚丙烯树脂相容性高,与其他添加剂协同性好,不易产生分层、起霜、花纹等问题。着色的同时能增加拒水性,提高了聚丙烯制品的产品附加值,减省了加功能后整理步骤,降低了原材料成本。
具体实施方式
实施例1
1、将聚丙烯树脂60份、钛白粉40份、分散剂23份、乙烯-醋酸乙烯共聚物30份、二氧化硅8份和偶联剂7份依次加入低速搅拌机中,以100转/分钟室温混合处理2~5分钟。在混合物中加入助剂4份和高温稳定剂4份,再用高速混合机以2000转/分钟高速混合8~10分钟。
2、将步骤1得到混合料用螺杆挤出机塑化挤出,挤出机中5个温区温度设定分别为170℃、180℃、190℃、180℃、190℃,主机转速为500~800转/分钟,挤出物在10~20℃中冷却。
3、所得物硬化后使用切粒机造粒,过震动筛,除去不规则产品,通风,待色母粒完全冷却并干燥后即得到成品。
实施例2
1、将聚丙烯树脂60份、钛白粉45份、分散剂23份、乙烯-醋酸乙烯共聚物28份、二氧化硅8份和偶联剂8份依次加入低速搅拌机中,以100转/分钟室温混合处理2~5分钟。在混合物中加入助剂3份和高温稳定剂4份,再用高速混合机以2000转/分钟高速混合8~10分钟。
2、将步骤1得到混合料用螺杆挤出机塑化挤出,挤出机中5个温区温度设定分别为170℃、180℃、190℃、180℃、190℃,主机转速为500~800转/分钟,挤出物在10~20℃中冷却。
3、所得物硬化后使用切粒机造粒,过震动筛,除去不规则产品,通风,待色母粒完全冷却并干燥后即得到成品。
实施例3
1、将聚丙烯树脂55份、钛白粉45份、分散剂25份、乙烯-醋酸乙烯共聚物30份、二氧化硅6份和偶联剂8份依次加入低速搅拌机中,以100转/分钟室温混合处理2~5分钟。在混合物中加入助剂3份和高温稳定剂4份,再用高速混合机以2000转/分钟高速混合8~10分钟。
2、将步骤1得到混合料用螺杆挤出机塑化挤出,挤出机中5个温区温度设定分别为170℃、180℃、190℃、180℃、190℃,主机转速为500~800转/分钟,挤出物在10~20℃中冷却。
3、所得物硬化后使用切粒机造粒,过震动筛,除去不规则产品,通风,待色母粒完全冷却并干燥后即得到成品。
实施例4
1、将聚丙烯树脂62份、钛白粉40份、分散剂20份、乙烯-醋酸乙烯共聚物32份、二氧化硅7份和偶联剂7份依次加入低速搅拌机中,以100转/分钟室温混合处理2~5分钟。在混合物中加入助剂4份和高温稳定剂3份,再用高速混合机以2000转/分钟高速混合8~10分钟。
2、将步骤1得到混合料用螺杆挤出机塑化挤出,挤出机中5个温区温度设定分别为170℃、180℃、190℃、180℃、190℃,主机转速为500~800转/分钟,挤出物在10~20℃中冷却。
3、所得物硬化后使用切粒机造粒,过震动筛,除去不规则产品,通风,待色母粒完全冷却并干燥后即得到成品。
实施例5
1、将聚丙烯树脂58份、钛白粉42份、分散剂25份、乙烯-醋酸乙烯共聚物30份、二氧化硅6份和偶联剂6份依次加入低速搅拌机中,以100转/分钟室温混合处理2~5分钟。在混合物中加入助剂4份和高温稳定剂3份,再用高速混合机以2000转/分钟高速混合8~10分钟。
2、将步骤1得到混合料用螺杆挤出机塑化挤出,挤出机中5个温区温度设定分别为170℃、180℃、190℃、180℃、190℃,主机转速为500~800转/分钟,挤出物在10~20℃中冷却。
3、所得物硬化后使用切粒机造粒,过震动筛,除去不规则产品,通风,待色母粒完全冷却并干燥后即得到成品。
实施例6
1、将聚丙烯树脂65份、钛白粉42份、分散剂22份、乙烯-醋酸乙烯共聚物29份、二氧化硅7份和偶联剂8份依次加入低速搅拌机中,以100转/分钟室温混合处理2~5分钟。在混合物中加入助剂3份和高温稳定剂3份,再用高速混合机以2000转/分钟高速混合8~10分钟。
2、将步骤1得到混合料用螺杆挤出机塑化挤出,挤出机中5个温区温度设定分别为170℃、180℃、190℃、180℃、190℃,主机转速为500~800转/分钟,挤出物在10~20℃中冷却。
3、所得物硬化后使用切粒机造粒,过震动筛,除去不规则产品,通风,待色母粒完全冷却并干燥后即得到成品。
检测方法:
根据HG/T 4668-2014标准分别检测色母粒的熔融指数、分子量分布系数、耐热温度、熔点、颜料含量、灰分、含湿、外观指标。
检测项目 | 实施例1 | 实施例2 | 实施例3 | 实施例4 | 实施例5 | 实施例6 |
熔融指数/(g/10min) | 28 | 26 | 26 | 25 | 27 | 26 |
分子量分布系数/% | 2.8 | 3.0 | 3.1 | 2.9 | 3.4 | 3.6 |
耐热温度/℃ | 307 | 297 | 301 | 302 | 294 | 300 |
熔点/℃ | 121 | 128 | 127 | 130 | 123 | 124 |
颜料含量/% | 71 | 70 | 67 | 62 | 67 | 65 |
灰分/% | 0.02 | 0.03 | 0.03 | 0.03 | 0.02 | 0.02 |
含湿/% | 0.02 | 0.03 | 0.03 | 0.03 | 0.03 | 0.025 |
外观 | 表面光滑、无明显色差,无粘连颗粒 | 表面光滑、无明显色差,无粘连颗粒 | 表面光滑、无明显色差,无粘连颗粒 | 表面光滑、无明显色差,无粘连颗粒 | 表面光滑、无明显色差,无粘连颗粒 | 表面光滑、无明显色差,无粘连颗粒 |
结果显示,色母粒各项性能均为优等。
前述的实例仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,所附的权利要求旨在要求可以设想的尽可能广的范围,且本文所呈现的实施例仅是根据所有可能的实施例的组合的选择的实施方式的说明。因此,申请人的用意是所附的权利要求不被说明本发明的特征的示例的选择限制。根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
Claims (10)
1.一种聚丙烯拒水无纺布专用色母粒,其特征在于,以重量份计,其制备原料包含以下组分:
聚丙烯树脂 40~80份
钛白粉 30~50份
分散剂 15~25份
乙烯-醋酸乙烯共聚物 25~35份
二氧化硅 5~9份
偶联剂 4~10份
助剂 2~5份
高温稳定剂 2~5份。
2.根据权利要求1所述的一种聚丙烯拒水无纺布专用色母粒,其特征在于,以重量份计,其制备原料包含以下组分:
聚丙烯树脂 55~65份
钛白粉 35~45份
分散剂 20~25份
乙烯-醋酸乙烯共聚物 28~32份
二氧化硅 6~8份
偶联剂 5~8份
助剂 3~4份
高温稳定剂 3~4份。
3.根据权利要求1所述的一种聚丙烯拒水无纺布专用色母粒,其特征在于,以重量份计,其制备原料包含以下组分:
聚丙烯树脂 60份
钛白粉 40份
分散剂 23份
乙烯-醋酸乙烯共聚物 30份
二氧化硅 8份
偶联剂 7份
助剂 4份
高温稳定剂 4份。
4.一种聚丙烯拒水无纺布专用色母粒的制备方法,包含如下步骤:
(1)将聚丙烯树脂40~80份、钛白粉30~50份、分散剂15~25份、乙烯-醋酸乙烯共聚物25~35份、二氧化硅5~9份和偶联剂4~10份依次加入低速搅拌机中,以100转/分钟室温混合处理2~5分钟,在混合物中加入助剂2~5份和高温稳定剂2~5份,再用高速混合机以2000转/分钟高速混合8~10分钟;
(2)将步骤1得到混合料用螺杆挤出机塑化挤出,挤出机中5个温区温度设定分别为170℃、180℃、190℃、180℃、190℃,主机转速为500~800转/分钟,挤出物在10~20℃中冷;
(3)所得物硬化后使用切粒机造粒,过震动筛,除去不规则产品,通风,待色母粒完全冷却并干燥后即得到成品。
5.根据权利要求1-2-3任一项所述的一种聚丙烯拒水无纺布专用色母粒,其特征在于,所使用的分散剂为聚丙烯蜡、重质碳酸钙、硬脂酸酰胺和乙醇按3:2:2:1的比例混合,混合物加入砂磨分散机,在1500转/分钟的转速下进行研磨,研磨颗粒平均粒径控制在0.2~0.5µm。
6.根据权利要求1-2-3任一项所述的一种聚丙烯拒水无纺布专用色母粒,其特征在于,所述偶联剂为甲基丙烯酸氯铬。
7.根据权利要求1-2-3任一项所述的一种聚丙烯拒水无纺布专用色母粒,其特征在于,所述的助剂为硬脂酸酰胺和聚甲基丙烯酸甲酯的混合物,混合比例为1:1。
8.根据权利要求1-2-3任一项所述的一种聚丙烯拒水无纺布专用色母粒,其特征在于,所述的高温稳定剂为聚酯蜡。
9.根据权利要求1-2-3任一项所述的一种聚丙烯拒水无纺布专用色母粒,其特征在于,步骤1低速搅拌机转速为100转/分钟,处理时间为2~5分钟;高速混合机速度为2000转/分钟,混合时间8~10分钟。
10.根据权利要求1-2-3任一项所述的一种聚丙烯拒水无纺布专用色母粒,其特征在于,步骤2挤出机5个温区温度设定分别为170℃、180℃、190℃、180℃、190℃,主机转速为500~800转/分钟,挤出物冷却温度为10~20℃。
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