CN106280973A - 涂覆于金属纽扣外表面的尼龙粉末及其制备方法 - Google Patents

涂覆于金属纽扣外表面的尼龙粉末及其制备方法 Download PDF

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CN106280973A
CN106280973A CN201610653841.1A CN201610653841A CN106280973A CN 106280973 A CN106280973 A CN 106280973A CN 201610653841 A CN201610653841 A CN 201610653841A CN 106280973 A CN106280973 A CN 106280973A
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吴杰
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Abstract

本发明公开了一种涂覆于金属纽扣外表面的尼龙粉末及其制备方法,该尼龙粉末由尼龙树脂、钛白粉、抗氧剂、紫外线稳定剂、流平剂和成核剂构成。其中,所述尼龙树脂为长碳链工程尼龙PA11、PA12、PA1012、PA1212、PA1010中的任意一种。采用本发明提供的尼龙粉作为金属纽扣表面的涂层,确保其与人体皮肤直接接触不会产生任意何副作用;且涂覆了白色尼龙粉末层的金属纽扣可以自由染色;尼龙粉与内层金属的粘结力非常好,有效防止金属纽扣出现内层铁胚裸露生锈。

Description

涂覆于金属纽扣外表面的尼龙粉末及其制备方法
技术领域
本发明涉及一种材料制备技术领域。具体地,尤其涉及一种涂覆于金属纽扣外表面的尼龙粉末,以及一种制备上述涂覆于金属纽扣外表面的尼龙粉末的制备方法。
背景技术
服装上的纽扣分为塑料纽扣和金属纽扣,塑料纽扣在材料强度、产品质感上相对金属纽扣要差一个档次;金属纽扣表面电镀来保护内层贴胚不会出现生锈。另外塑料纽扣和金属纽扣的颜色都比较单一,不能根据每件衣服、内衣来搭配合适颜色的纽扣。而尼龙粉是一种非常优秀的热塑性粉末涂料,非常环保,如何配置一种可以直接和人体皮肤相接触而不产生任意何负作用的尼龙粉末作为金属表面涂料是本领域技术人员需要研究的方向。
发明内容
为克服上述技术问题,本发明提供了一种涂覆于金属纽扣外表面的尼龙粉末。
本发明所采用的技术方案如下:
一种涂覆于金属纽扣外表面的尼龙粉末,所述尼龙粉末由尼龙树脂、钛白粉、抗氧剂、紫外线稳定剂、流平剂和成核剂构成。其中,所述尼龙树脂为长碳链工程尼龙PA11、PA12、PA1012、PA1212、PA1010中的任意一种。
优选的是,上述涂覆于金属纽扣外表面的尼龙粉末中,所述尼龙树脂的分子量在15000-20000之间。
更优选的是,上述涂覆于金属纽扣外表面的尼龙粉末中,各组分重量配比为:
尼龙树脂 90-95%
钛白粉 3-8%
抗氧剂 0.5-1.0%
紫外线稳定剂 0.2-0.4%
流平剂 0.5-1.0%
成核剂 0.1-0.3%
采用上述配比制得的涂覆于金属纽扣外表面的尼龙粉末,在熔融状态下具有较好的流动性,可以保证纽扣表面涂覆尼龙粉涂层后光滑度、平整度非常好。
进一步优选的是,上述涂覆于金属纽扣外表面的尼龙粉末中,所述钛白粉采用金红石型钛白粉。
选用金红石型钛白粉使得尼龙粉末具有更佳的耐候性。
更进一步优选的是,上述涂覆于金属纽扣外表面的尼龙粉末中,所述的抗氧剂为主抗氧剂采用受阻酚类抗氧剂1098、副抗氧剂采用亚磷酸酯类抗氧剂168的复配。其中,主抗氧剂和副抗氧剂的质量比为2:1。
通过以1098和168构成复配的抗氧剂,能很好的防止尼龙粉在涂覆工程中,尼龙粉末因热氧化而黄变,很好的保证白色尼龙纽扣的后期染色性能。
再进一步优选的是,上述涂覆于金属纽扣外表面的尼龙粉末,其粒径为d50=100um。
选用尼龙粉末的粒径为d50=100um,使其适用于涂覆加工工程,便于后继涂覆在金属纽扣的外表面。
本发明还公开了上述涂覆于金属纽扣外表面的尼龙粉末的制备方法,包括如下步骤:
S1:将尼龙树脂、钛白粉、抗氧剂、紫外线稳定剂、流平剂和成核剂按配比添加如高速混合机中,高速搅拌10分钟,经双螺杆挤出机挤出切粒,制得改性尼龙树脂颗粒;
S2:将S1所得改性尼龙树脂通过深冷磨粉机研磨成尼龙粉末;
S3:将S2所得尼龙粉末以PE薄膜内衬袋包装密封好,待冷冻状态下的尼龙粉回温至常温状态,通过履带式微波干燥机将尼龙粉干燥,令尼龙粉末中水分含量低于0.1%;
S4:将S3所得干燥后的尼龙粉末通过超声波震动筛分级筛分获得成品。
优选的是,步骤S2具体包括:
S21:通过液氮将尼龙树脂冷冻到-100℃到-150℃状态下保持30-60分钟;
S22:通过磨盘式粉碎机将尼龙颗粒研磨成尼龙粉末。
与现有技术相比,采用本发明提供的尼龙粉涂覆在金属纽扣表面,实现了与人体皮肤直接接触不会产生任意何副作用;且涂覆了白色尼龙粉末的金属纽扣可以自由染色;尼龙粉与内层金属的粘结力非常好,防止金属纽扣出现内层铁胚裸露生锈。
具体实施方式
为了更清楚地说明本发明的技术方案,下面将结合实施例对本发明作进一步描述。
一种涂覆于金属纽扣外表面的尼龙粉末,该尼龙粉涂由尼龙树脂、钛白粉、抗氧剂、紫外线稳定剂、流平剂和成核剂构成。该尼龙粉末的粒径为d50=100um。
其中,所述尼龙树脂为长碳链工程尼龙PA11、PA12、PA1012、PA1212、PA1010中的任意一种。其分子量在15000-20000之间。
所述钛白粉为金红石型钛白粉。
所述的抗氧剂包括主抗氧剂和副抗氧剂,所述主抗氧剂为受阻酚类抗氧剂1098;所述副抗氧剂为亚磷酸酯类抗氧剂168;所述主抗氧剂和副抗氧剂的质量比为2:1。
各组分重量配比为:
尼龙树脂 90-95%
钛白粉 3-8%
抗氧剂 0.5-1.0%
紫外线稳定剂 0.2-0.4%
流平剂 0.5-1.0%
成核剂 0.1-0.3%
实践中,上述涂覆于金属纽扣外表面的尼龙粉末制备过程如下:
S1:将尼龙树脂、钛白粉、抗氧剂、紫外线稳定剂、流平剂和成核剂按配比添加如高速混合机中,高速搅拌10分钟,经双螺杆挤出机挤出切粒,制得改性尼龙树脂颗粒;
S2:将S1所得改性尼龙树脂通过深冷磨粉机,通过液氮将尼龙树脂冷冻到-100℃到-150℃状态下保持30-60分钟;研磨成尼龙粉末;通过磨盘式粉碎机将尼龙颗粒研磨成尼龙粉末。
S3:将S2所得尼龙粉末以PE薄膜内衬袋包装密封好,待冷冻状态下的尼龙粉回温至常温状态,通过履带式微波干燥机将尼龙粉干燥,令尼龙粉末中水分含量低于0.1%;
S4:将S3所得干燥后的尼龙粉末通过超声波震动筛分机筛分获得d50=100um的成品。
本领域技术人员应当意识到在不脱离本发明所附的权利要求所揭示的本发明的范围和精神的情况下所作的更动与润饰,均属本发明的权利要求的保护范围之内。

Claims (8)

1.一种涂覆于金属纽扣外表面的尼龙粉末,其特征在于:所述尼龙粉涂由尼龙树脂、钛白粉、抗氧剂、紫外线稳定剂、流平剂和成核剂构成;所述尼龙树脂为长碳链工程尼龙PA11、PA12、PA1012、PA1212、PA1010中的任意一种。
2.如权利要求1所述一种涂覆于金属纽扣外表面的尼龙粉末,其特征在于:所述尼龙树脂的分子量在15000-20000之间。
3.如权利要求2所述一种涂覆于金属纽扣外表面的尼龙粉末,其特征在于,各组分重量配比为:
尼龙树脂 90-95%
钛白粉 3-8%
抗氧剂 0.5-1.0%
紫外线稳定剂 0.2-0.4%
流平剂 0.5.0-1.0%
成核剂 0.1-0.3%。
4.如权利要求3所述一种涂覆于金属纽扣外表面的尼龙粉末,其特征在于:所述钛白粉为金红石型钛白粉。
5.如权利要求4所述一种涂覆于金属纽扣外表面的尼龙粉末,其特征在于:所述的抗氧剂包括主抗氧剂和副抗氧剂,所述主抗氧剂为受阻酚类抗氧剂1098;所述副抗氧剂为亚磷酸酯类抗氧剂168;所述主抗氧剂和副抗氧剂的质量比为2:1。
6.如权利要求1至5任意一项所述一种涂覆于金属纽扣外表面的尼龙粉末,其特征在于:该尼龙粉末的粒径为d50=100um。
7.一种制备如权利要求3-6任意一项所述涂覆于金属纽扣外表面的尼龙粉末的制备方法,其特征在于包括如下步骤:
S1:将尼龙树脂、钛白粉、抗氧剂、紫外线稳定剂、流平剂和成核剂按配比添加如高速混合机中,高速搅拌10分钟,经双螺杆挤出机挤出切粒,制得改性尼龙树脂颗粒;
S2:将S1所得改性尼龙树脂通过深冷磨粉机研磨成尼龙粉末;
S3:将S2所得尼龙粉末以PE薄膜内衬袋包装密封好,待冷冻状态下的尼龙粉回温至常温状态,通过履带式微波干燥机将尼龙粉干燥,令尼龙粉末中水分含量低于0.1%;
S4:将S3所得干燥后的尼龙粉末通过超声波震动筛分机筛分获得成品。
8.如权利要求7所述一种制备如权利要求3-6任意一项所述涂覆于金属纽扣外表面的尼龙粉末的制备方法,其特征在于:
所述S2包括如下步骤:
S21:通过液氮将尼龙树脂冷冻到-100℃到-150℃状态下保持30-60分钟;
S22:通过磨盘式粉碎机将尼龙颗粒研磨成尼龙粉末。
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CN105331280A (zh) * 2014-08-13 2016-02-17 上海可孚化工有限公司 用于洗碗机碗篮、冰箱搁物架的尼龙粉末涂料及制备方法

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