CN113121897A - 抗菌防霉的感温变色母粒及其家居用品制备方法 - Google Patents
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Abstract
本发明揭示了一种抗菌防霉的感温变色母粒及其家居用品制备方法，由以下重量百分比的组分组成：感温颜料朱红10‑15%；感温颜料咖色10‑15%；普通颜料黄0.8~1.2%；分散剂0.2‑0.4%；琥珀酸酐0.2‑0.4%；抗菌剂0.2‑0.4%；聚乙烯树脂66.8‑77.2%。本发明的有益效果主要体现在：本发明不仅具有优异的抗菌防霉特性，而且当室内温度变化超过10℃以上时，用品的颜色会发生变化，一方面增加生活情趣，另一方面也是对温度变化发出警示作用。
Description
技术领域
本发明涉及塑料着色技术领域，具体而言，尤其涉及一种抗菌防霉的感温变色母粒及其家居用品制备方法。
背景技术
随着人们生活水平的提高，健康意识也逐步增强，人们对生活环境的舒适和卫生条件也越来越重视，创建舒适、洁净、抗菌、防霉、防止疾病传播的生活、学习与工作环境已成为了人们日益关注的热点话题。但是，伴随着人们正在为自已营造一个冬暖夏凉的生存环境的同时，也为微生物的繁殖、生长创造了有利的条件。细菌和霉菌是微生物的两种主要类型，具有种类繁多、分布极广、生命力旺盛等特点，当环境条件为相对湿度大于65％、温度20℃～30℃、pH值3.0～6.0时，就会迅速吸收材料表面的营养物质而生长，造成材料的霉变和破坏。霉菌生长时形成的菌丝体是导体，可使材料的绝缘性能下降，重量变化，严重时可出现材料剥落现象。霉菌生长时形成的代谢物含有机酸和毒素，会使制品出现表面发粘、变色、变脆、光洁度降低等现象，还会使长期接触这些霉腐制品的人染上疾病。因此，控制和消灭有害细菌、霉菌的生长和繁殖，保护人类健康是当今科技领域的重要课题，并日益受到关注。由于聚乙烯(PE)具有质轻、无毒、成型加工容易、性能价格比高的特点，在很多领域都有广泛的应用，是世界上用量第二的通用塑料，目前，聚乙烯制品已广泛涉及到军用、民用与工业的各个领域，因此，研究聚乙烯抗菌防霉具有十分重要意义。
发明内容
本发明的目的是克服现有技术存在的不足，提供一种抗菌防霉的感温变色母粒及其家居用品制备方法。
本发明的目的通过以下技术方案来实现：
一种抗菌防霉的感温变色母粒，由以下重量百分比的组分组成：感温颜料朱红10-15％；
感温颜料咖色10-15％；
普通颜料黄0.8～1.2％；
分散剂0.2-0.4％；
琥珀酸酐0.2-0.4％；
抗菌剂0.2-0.4％；
聚乙烯树脂66.8-77.2％。
优选的，所述抗菌剂由异噻唑啉酮和银离子混配而成。
一种具有抗菌防霉的感温变色母粒的家居用品制备方法，包括如下步骤：
S1、常温常压下将感温颜料朱红、感温颜料咖色、普通颜料黄、分散剂、琥珀酸酐、抗菌剂、聚乙烯树脂送至搅拌器中，搅拌速度100～120r/min，30分钟，搅拌混合均匀成混合料；
S2、将混合料放入双螺杆挤出机中进行挤出造粒，挤出温度控制在150～170℃；
S3、挤出形成料条，随后将料条通过水槽冷却后进入切粒机造粒，制得抗菌防霉的感温变色母粒；
S4、将抗菌防霉的感温变色母粒以4％～8％的比例配入低密度聚乙烯中，经过挤出机210℃把原料塑化熔融，再用注塑机注塑成型，冷却降温定型，制得家居用品。
本发明的有益效果主要体现在：本发明不仅具有优异的抗菌防霉特性，而且当室内温度变化超过10℃以上时，用品的颜色会发生变化，一方面增加生活情趣，另一方面也是对温度变化发出警示作用。
具体实施方式
以下的具体实施方式对本发明进行详细描述。但这些实施方式并不限于本发明，本领域的普通技术人员根据这些实施方式所做出的结构、方法、或功能上的变换均包含在本发明的保护范围内。
下面结合实施例来详细说明本发明。
实施例1：
常温常压下将感温颜料朱红10kg、感温颜料咖色10kg、普通颜料黄0.8kg、分散剂0.2kg、琥珀酸酐0.2kg、抗菌剂0.2kg、聚乙烯树脂66.8kg送至搅拌器中，搅拌速度100～120r/min，30分钟，搅拌混合均匀成混合料。将混合料放入双螺杆挤出机中进行挤出造粒，挤出温度控制在150～170℃，挤出形成料条，随后将料条通过水槽冷却后进入切粒机造粒，制得抗菌防霉的感温变色母粒。
实施例2：
常温常压下将感温颜料朱红10kg、感温颜料咖色10kg、普通颜料黄0.8kg、分散剂0.2kg、琥珀酸酐0.2kg、抗菌剂0.2kg、聚乙烯树脂66.8kg送至搅拌器中，搅拌速度100～120r/min，30分钟，搅拌混合均匀成混合料。将混合料放入双螺杆挤出机中进行挤出造粒，挤出温度控制在150～170℃，挤出形成料条，随后将料条通过水槽冷却后进入切粒机造粒，制得抗菌防霉的感温变色母粒。
实施例2：
常温常压下将感温颜料朱红15kg、感温颜料咖色15kg、普通颜料黄1.2kg、分散剂0.4kg、琥珀酸酐0.4kg、抗菌剂0.4kg、聚乙烯树脂77.2kg送至搅拌器中，搅拌速度100～120r/min，30分钟，搅拌混合均匀成混合料。将混合料放入双螺杆挤出机中进行挤出造粒，挤出温度控制在150～170℃，挤出形成料条，随后将料条通过水槽冷却后进入切粒机造粒，制得抗菌防霉的感温变色母粒。
实施例3：
常温常压下将感温颜料朱红12kg、感温颜料咖色13kg、普通颜料黄1kg、分散剂0.3kg、琥珀酸酐0.3kg、抗菌剂0.3kg、聚乙烯树脂70kg送至搅拌器中，搅拌速度100～120r/min，30分钟，搅拌混合均匀成混合料。将混合料放入双螺杆挤出机中进行挤出造粒，挤出温度控制在150～170℃，挤出形成料条，随后将料条通过水槽冷却后进入切粒机造粒，制得抗菌防霉的感温变色母粒。
上述实施例中，所述抗菌剂由异噻唑啉酮和银离子混配而成。银离子抗菌剂具有高效、广谱、持续时间长等特点,且无毒、无异味,对环境无影响。当微量的银离子到达微生物细胞膜时，因后者带负电荷，依靠库仑引力，使两者牢固吸附，银离子穿透细胞壁进入胞内，使蛋白质凝固，破坏细胞合成酶的活性，细胞丧失分裂增殖能力而死亡。银离子还能破坏微生物的呼吸系统和物质传输系统。
异噻唑啉酮是通过断开细菌和藻类蛋白质的键而起杀生作用的。异噻唑啉酮与微生物接触后，能迅速地不可逆地抑制其生长，从而导致微生物细胞的死亡，故对常见细菌、真菌、藻类等具有很强的抑制和杀灭作用。
本发明中优选采用一种异噻唑啉酮和银离子混配的高效抗菌剂，只需要加入少量即可提供持久的嵌入式的保护来对抗细菌给该制品带来的污染、异味及降解。同时我们在制品中加入感温变色的颜料，当室内温度低于10℃时显示朱红色，当室内温度在10℃到25℃之间时显示橘红色，而当温度升高至25℃以上时显示黄色。
在配方中加入了琥珀酸酐，琥珀酸酐作为高反应性施胶剂，水解速度及活性半衰期很短。它可以借助于分散剂或者乳化剂，稳定剂，促进剂及助留剂的电荷调节与桥联，起到凝结和絮凝作用，而使其在制品内帮助颜料显示良好的留着性和分散性。
将实施例中的抗菌防霉的感温变色母粒以4％～8％的比例配入低密度聚乙烯中，经过挤出机210℃把原料塑化熔融，再用注塑机注塑成型，冷却降温定型，制得家居用品。该家居用品具有抗菌防霉功能的家居用品有助于保持房间的卫生，抑制病菌的传播，减少家人感染疾病的机会。
本发明制得的家居用品进行AATCC 30的方法测试，样品表面完全没有细菌。
本发明制得的家居用品进行防霉测试：
当室内的温度在10℃到25℃之间时，该制品显示橘红色，当室内温度低于10℃时制品显示朱红色，而当室内温度温度升高至25℃以上时显示黄色。对比样的颜色则是红色。
应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施方式中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。
上文所列出的一系列的详细说明仅仅是针对本发明的可行性实施方式的具体说明，它们并非用以限制本发明的保护范围，凡未脱离本发明技艺精神所作的等效实施方式或变更均应包含在本发明的保护范围之内。
Claims (3)
1.抗菌防霉的感温变色母粒，其特征在于，由以下重量百分比的组分组成：感温颜料朱红10-15%；
感温颜料咖色10-15%；
普通颜料黄0.8~1.2%；
分散剂0.2-0.4%；
琥珀酸酐0.2-0.4%；
抗菌剂0.2-0.4%；
聚乙烯树脂 66.8-77.2%。
2.根据权利要求1所述的抗菌防霉的感温变色母粒，其特征在于，所述抗菌剂由异噻唑啉酮和银离子混配而成。
3.具有抗菌防霉的感温变色母粒的家居用品制备方法，其特征在于，包括如下步骤：
S1、常温常压下将感温颜料朱红、感温颜料咖色、普通颜料黄、分散剂、 琥珀酸酐、抗菌剂、聚乙烯树脂送至搅拌器中，搅拌速度100~120r/min，30分钟，搅拌混合均匀成混合料；
S2、将混合料放入双螺杆挤出机中进行挤出造粒，挤出温度控制在150~170℃；
S3、挤出形成料条，随后将料条通过水槽冷却后进入切粒机造粒，制得抗菌防霉的感温变色母粒；
S4、将抗菌防霉的感温变色母粒以4%~8%的比例配入低密度聚乙烯中，经过挤出机210℃把原料塑化熔融，再用注塑机注塑成型，冷却降温定型，制得家居用品。
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