化工进展
化工進展
화공진전
CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
2014年
6期
1572-1575
,共4页
银离子%水合硅%抗菌剂%双股流工艺
銀離子%水閤硅%抗菌劑%雙股流工藝
은리자%수합규%항균제%쌍고류공예
silver ion%hydrated silicon%antibacterial agent%double stream process
我国抗菌产业在短短的几年时间内已成长为一个年产值超700亿元的新产业。迄今为止所报道的无机抗菌剂虽然添加到制品中或多或少有一定的抗菌效果，但在分散性、吸附性及补强性方面均比较弱。本文采用来源较广泛且价格便宜的硫酸与泡花碱在银离子附载情况下以双股流工艺合成一种抗菌率高、加工性好的绿色环保的无机水合硅抗菌剂，具有合成工艺简单，成本低，抗色变性好，同时具有高补强高分散性等优点，对大肠杆菌抗菌率达100%，特别适用于抗菌塑料加工制品等领域。通过研究探讨合成条件对产品外观、性能及抗菌效果的影响，以及添加剂对银离子氧化色变问题的预防，经研究最佳的附载工艺为恒温95℃，恒搅拌速度400r/min， pH值为2，水合硅浆料与附载离子摩尔比为50∶1，添加剂与浆料溶液质量比为0.05%。
我國抗菌產業在短短的幾年時間內已成長為一箇年產值超700億元的新產業。迄今為止所報道的無機抗菌劑雖然添加到製品中或多或少有一定的抗菌效果，但在分散性、吸附性及補彊性方麵均比較弱。本文採用來源較廣汎且價格便宜的硫痠與泡花堿在銀離子附載情況下以雙股流工藝閤成一種抗菌率高、加工性好的綠色環保的無機水閤硅抗菌劑，具有閤成工藝簡單，成本低，抗色變性好，同時具有高補彊高分散性等優點，對大腸桿菌抗菌率達100%，特彆適用于抗菌塑料加工製品等領域。通過研究探討閤成條件對產品外觀、性能及抗菌效果的影響，以及添加劑對銀離子氧化色變問題的預防，經研究最佳的附載工藝為恆溫95℃，恆攪拌速度400r/min， pH值為2，水閤硅漿料與附載離子摩爾比為50∶1，添加劑與漿料溶液質量比為0.05%。
아국항균산업재단단적궤년시간내이성장위일개년산치초700억원적신산업。흘금위지소보도적무궤항균제수연첨가도제품중혹다혹소유일정적항균효과，단재분산성、흡부성급보강성방면균비교약。본문채용래원교엄범차개격편의적류산여포화감재은리자부재정황하이쌍고류공예합성일충항균솔고、가공성호적록색배보적무궤수합규항균제，구유합성공예간단，성본저，항색변성호，동시구유고보강고분산성등우점，대대장간균항균솔체100%，특별괄용우항균소료가공제품등영역。통과연구탐토합성조건대산품외관、성능급항균효과적영향，이급첨가제대은리자양화색변문제적예방，경연구최가적부재공예위항온95℃，항교반속도400r/min， pH치위2，수합규장료여부재리자마이비위50∶1，첨가제여장료용액질량비위0.05%。
Antibacterial industry in China has grown into a new industry with annual output value of 70 billion yuan in just a few years. Although inorganic antibacterial agents added to the finished products more or less have some antibacterial effect,but the dispersion,adsorption and reinforcement are not satisfactory. Sulfuric acid and sodium silicate were used with silver ions loading in a double stream process to synthesize a green hydrated silica inorganic antibacterial agent. The synthesis process was simple,low cost,and the product was resistant to discoloration,highly reinforcing and highly dispersive. Antibacterial rate of E. coli,was 100%,especially for antibacterial plastic products. The influence of synthesis conditions on the appearance,performance and antibacterial effect was studied and prevention of oxidation discoloration of silver ions with additives was also investigated. The optimal loading condition was temperature 95 ℃,stirring rate 400r/min,pH 2,molar ratio of hydrated silicon slurry and silver ion loading 50∶1,mass ratio of additive in slurry 0.05%.
