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It is very difficult to eliminate these influence factors completely by conventional treatment. Surface properties and surface treatment of ultrafine red phosphorus and MMT and their interface properties with polymer matrices were studied in this thesis. The results were characterized by GC, FTIR, XRD, DTA, TG, XPS, UV, SEM, TEM and other physical and chemical methods. The main contents are as following: 1. The study of factors influencing ultrafine red phosphorus's invariability and phosphine liberation indicated red phosphorus undergone oxidation and dismutation reaction in air, and trace ion of iron, copper and nickel fastened water absorption and oxidation, in which the effect of copper ion was the most, while aluminium and zinc ion could slow down red phosphorus'oxidation, and silver ion had the best effect on red phosphorus moisture absorption. Inhibitors such as aluminium hydroxide, magnesium hydroxide, organic phenol and ferrous potassuim cyanide had a good effect on reducing red phosphorus moisture absorption and restraining phosphine liberation.
本文围绕纳微米材料的表面处理及其在高聚物基体中的应用这一主题,系统地研究了超细红磷和蒙脱土两种常见材料的表面特性、表面处理方法及其与高聚物基体的界面特性,通过气相色谱、红外光谱、X射线衍射、差热、热重、X射线光电子能谱仪、紫外光谱、扫描电镜、透射电镜等现代分析仪器以及其它物理、化学方法对实验结果进行了表征和分析,全文主要内容如下: 1、对影响超细红磷安定性的因素以及磷化氢的缓释研究表明:红磷在空气中发生缓慢氧化、歧化反应,微量的铜、铁、镍等金属离子增加了它的吸水和氧化速度,其中铜离子的作用最为明显,而铝、锌等离子减慢了红磷的氧化速度,银离子对减少红磷的吸湿性效果最好。
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The result shows that the relationship between suction and suctional strength is unlinear, the difference of suctional strength in the two paths that desorption and absorption of moisture is not obvious under a certain cell pressure. According to the result of triaxial test, a shear strength formula of ningming unsaturated expansive soils is put forward.
结果表明宁明膨胀土的吸力与吸附强度之间的关系是非线性的,一定的围压作用,吸湿和脱湿路径下的强度有差异但不明显,由此提出宁明非饱和膨胀土有效应力强度理论公式。
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Based on the precipitation reaction principle of defluorination in wet-process phosphoric acid production,sodium carbonate and diatomite have been experimented to defluorine from phosphoric acid with different conditions.
基于湿法磷酸沉淀法脱氟工艺的反应原理,以碳酸钠为脱氟剂,硅藻土为助脱氟剂,研究了不同的碳酸钠和硅藻土用量、作用时间、作用温度条件下的脱氟效果。
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This product is made of fresh aloe gel as moisturizing lotion and equipped with high-ranking fruit acid of whitening essence and arbutin as brand-new spot-removing raw material. It is able to produce strong inhibition and whiten skin by re-using the principle of fruit acid changing skin without usual bleach or decolorization during the process of tyrosine enzyme turned into Dopa pigment C after skin absorbs it, so it brings much better effect when it is used for a long time.
产品名称:白美人祛斑霜品牌:Pamini白美人规格:20g/瓶*100瓶/件产品说明:本品以鲜芦荟凝胶为保湿剂,配以高级美白素果酸和新型祛斑原料熊果苷经皮肤吸收后对酪氨酸酶转化为多巴色素C的过程,能产生较强的抑制作用,再利用果酸换肤原理达到增白效果,并非一般漂白或脱色作用,长期使用效果更好。
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chitosan:脫乙醯甲殼質
甲壳质脱乙酰后的脱乙酰甲壳质(Chitosan)结构中有多个羟基及氨基等极性基因,因此有极强的水合能力,保湿性好,可保持皮肤的水份. 同时它的氨基可发挥抗菌防臭作用. 日清纺的]モイスキン]为其代表产品. 艾是菊科多年生草本植物,