CN106867102A - 一种低吸附、高温防流挂、抗菌的透明pp生物材料及其制备方法 - Google Patents
一种低吸附、高温防流挂、抗菌的透明pp生物材料及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种低吸附、高温防流挂、抗菌的透明PP生物材料及其制备方法,本发明提供的生物材料的主要组分及其配比为:聚丙烯95‑99份、聚醚改性聚二甲基硅氧烷0.3‑1份、二丙二醇单甲醚0.1‑0.5份、山梨醇类透明成核剂0.5‑1份、抗氧化剂0.1‑0.3份、高温防流挂剂0.1‑1份,纳米银溶液0.001-0.005、加工助剂0.05-0.2份。主要生产工艺包括:混料前的处理、冷机搅拌、挤出、切料和包装。本发明提供PP生物材料,刚性大,透光度高,低吸附,高温防流挂,并且能实现长期、多种类抗菌,可广泛运用于无色低吸附离心管、DNA测试离心管、细胞培养板、生物医学移液管、收尖吸头等高精度高要求生物、医学材料。
Description
技术领域
本发明涉及一种生物材料,主要涉及一种低吸附、高温防流挂、抗菌的透明PP材料及其制备方法。
背景技术
目前市面上所有的用于生物医学研究的低吸附、抗菌PP技术均由国外垄断,产品价格高,采购周期长。国产致力于此类材料的研制已有数年,在有些领域已有明显的突破,但是质量仍有欠缺,比如在容器内或移液时有薄膜状残留,浪费宝贵的实验材料;在高温时虽然塑料产品表面张力变小,但其内部添加材料出现沉淀和浮色,导致流挂现象严重;普通纳米银颗粒抗菌剂因实验周期长出现氧化失效等等,限制了国产材料的使用。
发明内容
为解决以上问题,本发明提供一种低吸附、高温防流挂、抗菌的透明PP材料及其制备方法,主要组分及其比例包括:聚丙烯95-99份、聚醚改性聚二甲基硅氧烷 0.3-1份、二丙二醇单甲醚 0.1-0.5份、山梨醇类透明成核剂 0.5-1份、抗氧化剂 0.1-0.3份、高温防流挂剂0.1-1份,纳米银溶液 0.001-0.005、加工助剂0.05-0.2份。
更进一步的,所述抗氧剂是氧剂1010;所述加工助剂是非离子型有机氟表面活性剂;所述聚醚改性聚二甲基硅氧烷是聚醚改性聚二甲基硅氧烷溶剂。
一种低吸附、高温防流挂、抗菌的透明PP生物材料的制备方法:
(1)在高速搅拌缸体桶壁中同冷凝水,设置桶的温度低于30摄氏度。
(2)在桶内加入95-99份的聚丙烯,在聚丙烯内加入0.3-1份的聚醚改性聚二甲基硅氧烷和0.1-0.5份的二丙二醇单甲醚,搅拌1-2分钟。
(3)然后向桶内加入0.5-1份的山梨醇类透明成核剂,0.1-0.3份的抗氧化剂和0.05-0.2份的加工助剂,搅拌1-2分钟;在搅拌的同时,向桶内滴入0.1-1份的高温防流挂剂和0.001-0.005的纳米银溶液。
(4)用同向平行双螺杆将搅拌后的PP生物材料挤出,设置同向平行双螺杆的主机转速为350-600转/分;温度为170-200摄氏度,双螺杆采用高分散性螺杆组合。
(5)采用龙门式切粒机将挤出的PP生物材料切成3*3mm的颗粒,在切割同时对材料进行冷却,冷却方式包括风冷和水冷。水冷采用温度为3-5摄氏度的水。
(6)对切割后的颗粒进行包装。
本发明提供的一种低吸附、高温防流挂、抗菌的透明PP生物材料及其制备方法,采用本配方和生产工艺制备的PP生物材料结晶度高、晶核小、排列有序,造成PP生物材料透明度高,表面张力低。高温防流挂剂和树脂产生了缔合效应,有效的防止了沉淀和浮色等不良反应,在高温时保持着同等级的表面张力;纳米银溶液是新型的抗菌剂,其粒径为10纳米,具有光谱杀菌作用,在空气中暴露不会被氧化失效,而且该PP生物材料遇水抗菌效果愈发增强,利于疾病的治疗。本产品可广泛运用于无色低吸附离心管、DNA测试离心管、细胞培养板、生物医学移液管、收尖吸头等高精度高要求生物、医学材料。
具体实施方式
实施例一
(1)在高速搅拌缸体桶壁中同冷凝水,设置桶的温度低于30摄氏度。
(2)在桶内加入97份的聚丙烯,在聚丙烯内加入0.5份的聚醚改性聚二甲基硅氧烷和0.2份的二丙二醇单甲醚,搅拌1-2分钟。
(3)然后向桶内加入0.7份的山梨醇类透明成核剂,0.1份的抗氧化剂和0.08份的加工助剂,搅拌1-2分钟;在搅拌的同时,向桶内滴入0.3份的高温防流挂剂和0.002的纳米银溶液。
(4)用同向平行双螺杆将搅拌后的PP生物材料挤出,设置同向平行双螺杆的主机转速为380转/分;温度为180摄氏度,双螺杆采用高分散性螺杆组合。
(5)采用龙门式切粒机将挤出的PP生物材料切成3*3mm的颗粒,在切割同时对材料进行冷却,冷却方式包括风冷和水冷。水冷采用温度为3-5摄氏度的水。
(6)对切割后的颗粒进行包装,所得到的PP生物材料为实施例一材料。
实施例二
(1)在高速搅拌缸体桶壁中同冷凝水,设置桶的温度低于30摄氏度。
(2)在桶内加入99份的聚丙烯,在聚丙烯内加入0.8份的聚醚改性聚二甲基硅氧烷和0.4份的二丙二醇单甲醚,搅拌1-2分钟。
(3)然后向桶内加入0.8份的山梨醇类透明成核剂,0.25份的抗氧化剂和0.15份的加工助剂,搅拌1-2分钟;在搅拌的同时,向桶内滴入0.9份的高温防流挂剂和0.004的纳米银溶液。
(4)用同向平行双螺杆将搅拌后的PP生物材料挤出,设置同向平行双螺杆的主机转速为500转/分;温度为195摄氏度,双螺杆采用高分散性螺杆组合。
(5)采用龙门式切粒机将挤出的PP生物材料切成3*3mm的颗粒,在切割同时对材料进行冷却,冷却方式包括风冷和水冷。水冷采用温度为3-5摄氏度的水。
(6)对切割后的颗粒进行包装,所得到的PP生物材料为实施例二材料
将国外进口的材料和国内其他厂商生产的PP生物材料作为对比例,对实施例一材料和实施例二材料及对比例的材料进行性能测试,测试数据表1所示。
表1
注:表1中所测试的表面张力是再温度为20摄氏度的环境下进行测试的。
从表1中可以获知,通过本生产配方和制备方法制备的PP生物材料,在各个性能上都已达到国外进口产品的同等标准,质量优于国内其他厂商生产的PP生物材料。本产品达到了低吸附、高温防流挂、抗菌以及透明的指标。
以上仅为本发明较佳的实施例,故不能依此限定本发明实施的范围,即依本发明说明书内容所作的等效变化与装饰,皆应属于本发明覆盖的范围内。
Claims (3)
1.一种低吸附、高温防流挂、抗菌的透明PP生物材料,其特征在于:主要组分及其比例包括:聚丙烯95-99份、聚醚改性聚二甲基硅氧烷 0.3-1份、二丙二醇单甲醚 0.1-0.5份、山梨醇类透明成核剂 0.5-1份、抗氧化剂 0.1-0.3份、高温防流挂剂0.1-1份,纳米银溶液0.001-0.005、加工助剂0.05-0.2份。
2.如权利要求1所述的一种低吸附、高温防流挂、抗菌的透明PP生物材料,其特征在于:所述抗氧剂可以是抗氧化剂1010;所述加工助剂是非离子型有机氟表面活性剂;所述聚醚改性聚二甲基硅氧烷是聚醚改性聚二甲基硅氧烷溶剂。
3.一种低吸附、高温防流挂、抗菌的透明PP生物材料的制备方法,其特征在于:包括一下步骤:
(1)在高速搅拌缸体桶壁中同冷凝水,设置桶的温度低于30摄氏度;
(2)在桶内加入95-99份的聚丙烯,在聚丙烯内加入0.3-1份的聚醚改性聚二甲基硅氧烷和0.1-0.5份的二丙二醇单甲醚,搅拌1-2分钟;
(3)然后向桶内加入0.5-1份的山梨醇类透明成核剂,0.1-0.3份的抗氧化剂和0.05-0.2份的加工助剂,搅拌1-2分钟;在搅拌的同时,向桶内滴入0.1-1份的高温防流挂剂和0.001-0.005的纳米银溶液;
(4)用同向平行双螺杆将搅拌后的PP生物材料挤出,设置同向平行双螺杆的主机转速为350-600转/分;温度为170-200摄氏度,双螺杆采用高分散性螺杆组合;
(5)采用龙门式切粒机将挤出的PP生物材料切成3*3mm的颗粒,在切割同时对材料进行冷却,冷却方式包括风冷和水冷;水冷采用温度为3-5摄氏度的水;
(6)对切割后的颗粒进行包装。
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CN102604214A (zh) * | 2012-02-29 | 2012-07-25 | 杨谢 | 一种高结晶pp的配方及其制作方法 |
CN102757601A (zh) * | 2012-08-01 | 2012-10-31 | 长沙达联塑料有限公司 | 一种聚丙烯透明母粒材料及其制备方法 |
CN103804796A (zh) * | 2014-03-11 | 2014-05-21 | 常州崇高纳米材料有限公司 | 一种用于生产高透明的抗菌聚丙烯制品的聚丙烯母粒的制备方法 |
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CN101591443A (zh) * | 2009-06-25 | 2009-12-02 | 汕头大学 | 一种聚丙烯表面改性添加剂树脂及制备方法 |
CN102040776A (zh) * | 2010-12-30 | 2011-05-04 | 深圳市科聚新材料有限公司 | 一种抗菌聚丙烯材料及其制备方法 |
CN102604214A (zh) * | 2012-02-29 | 2012-07-25 | 杨谢 | 一种高结晶pp的配方及其制作方法 |
CN102757601A (zh) * | 2012-08-01 | 2012-10-31 | 长沙达联塑料有限公司 | 一种聚丙烯透明母粒材料及其制备方法 |
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