| 除油剂在工业上的应用 |
| 添加时间：2017/8/9 14:15:58 浏览次数： |
| 1碱类助洗剂 1 basic type of lotion 碱类助洗剂常用的为氢氧化钠、纯碱、硅酸钠和三聚磷酸钠。氢氧化钠和纯碱作为碱剂，价格最为便宜，废水较难处理，有时因为碱性偏强导致清洗物体受到损伤，另一方面氢氧化钠和纯碱没有乳化作用对于矿物油清洗没有任何效果； Alkaloids are commonly used as sodium hydroxide, soda, sodium silicate and sodium tripolyphosphate. Caustic soda and soda ash as alkali agent, the price is the most cheap, wastewater more difficult, sometimes because of alkaline strong, leading to damage cleaning object, on the other hand, caustic soda and soda ash no emulsification for mineral oil clean without any effect; 硅酸钠与三聚磷酸钠既能提供碱性，又能提供一定的乳化力，广泛的用于各种除油清洗剂中特别是对碱敏感的除油工艺。使用硅酸钠最大的缺陷是除油后若不用热水先洗一道，直接冷水洗很难将残留的硅酸钠完全洗净，残留的硅酸钠会与下一道工序的酸反应生成附着牢固的硅胶，从而影响后工序的清洁度和清洗难度；三聚磷酸钠则主要存在磷污染破坏环境的担忧。 Sodium silicate and sodium tripolyphosphate can provide both alkaline and certain emulsifying properties, which are widely used in various degreasing and cleaning agents especially for alkali sensitive oil removal processes. Using sodium silicate's biggest flaw is after oil removal if there is no hot water shower first, direct cold water to wash it is difficult to clean the residual sodium silicate completely, residual sodium silicate can react with acid next procedure generated attached solid silica gel, which affect the purity of the process and the difficulty of the cleaning, Sodium tripolyphosphate is a major concern in the environment of phosphorus pollution. 2表面活性剂, 2 surfactant, 表面活性剂是除油剂的最核心成分，早期的除油剂是以乳化剂的乳化作用为主，如脂肪醇聚氧乙烯醚（AEO）系列、烷基酚聚氧乙烯醚（TX、NP）系列等，烷基酚聚氧乙烯醚（XP、NP）系列因对环境不友好在染整行业而被禁用。过多的使用乳化剂会将脱落的油脂乳化增溶于工作液中，导致工作液除油能力逐渐下降，需要频繁更换工作液。 Surfactant is the most core components, in addition to the agent of the early except oil is emulsifier emulsification is given priority to, such as fatty alcohol polyoxyethylene ether (AEO) series, alkyl phenol polyoxyethylene ether (TX, NP) series, alkyl phenol polyoxyethylene ether (XP, NP) series for not friendly to the environment and is disabled in the dyeing and finishing industry. Excessive use of emulsifier will increase the oil emulsification and solute in the working fluid, resulting in the gradual decline of the working fluid, and the need to change the working fluid frequently. 但是随着表面活性剂成本的上升，越来越要求降低表面活性剂的使用量，提高除油的速率，这就要求除油剂具有很好的分散和抗二次沉积性能，将脱落的油脂从织物或金属表面剥离，在溶液中不乳化、不皂化，只是漂浮在溶液表面，保持槽液的清澈与持续的除油能力。 But as surfactant costs rise, more and more requirements to reduce the use amount of surfactant, improve the rate of oil removal, this requires that the agent has good dispersion and secondary sedimentation resistance, stripping off grease from fabric or metal surface, emulsification, saponification in aqueous solution, just floating in the surface of solution, keep the slot liquid clear and persistent oil removal ability. |
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