浅析颜色对透明皂透明度的影响

本文着重讨论了研压法生产的透明皂,在执行<透明皂>QB/T1913-2004标准中,颜色对透明度T值的影响,并与已被替代的<半透明皂>QB/T1913-93标准中的透明度L值进行了比较.     

半透明皂的透明度影响因素及其工艺过程控制

浅析了研压法生产半透明皂的过程中从配方设计到过程参数控制，再到包装、贮存等环节影响透明度的诸多因素，着重讨论了生产过程中皂粒脂肪酸含量、配方凝固点和过程温度3个主要因素与透明度的关系，同时分析了其他相关因素如：精研、出条、冷冻水、晾皂、皂形、包装及贮存等对产品透明度的影响。并给出了过程控制的相关参数及其控制这些因素的办法。     

透明牙膏透明度的影响因素及工艺条件选择

讨论了影响透明牙膏透明度的主要因素，探讨并选择了适明牙膏生产适宜的工艺条件。     

色彩分析仪应用于测定赛棉的透明度

在实验基础上研究用色彩分析仪测定赛棉透明度的可行性，并与目视比较法，分光光度法进行比较，结果表明用色彩析仪测定赛棉透明度，以色度差△Ｅ作为判断标准是可行的。     

酸浴透明度与浊度的测定探讨

分析了在粘胶纤维生产中所用的纺丝酸浴透明度测定方法所存在的问题,试验了采用浊度仪测定酸浴浊度计算透明度的方法。探讨了透明度与浊度的对应关系。     

氨基酸透明皂的制备及性能研究

利用椰油酰谷氨酸、甜菜碱、三乙醇胺、甘油为原料制备氨基酸透明皂,研究了原料配比、皂化温度、皂化时间、搅拌速度对氨基酸透明皂酸碱性、透明度、硬度、起泡性的影响,得到了制备氨基酸透明皂最佳实验条件:椰油酰谷氨酸含量为31.5%,甜菜碱含量为1%,甘油含量为18%,三乙醇胺含量为23%,乙醇含量5.5%,水含量21%时,90℃恒温皂化15 min,搅拌速度控制在150 r/min。制备的氨基酸透明皂呈弱酸性、透明度高、硬度大、泡沫细腻丰富,温和不刺激。     

新型液体物料透明度的专项测量仪

介绍了液体物料透明度专项测量仪器的工作原理和使用方法     

明胶透明度的探讨

<正> 透明和色泽是明胶的重要理化指标之一,它们决定着成品明胶的档次,同时也是衡量制胶企业技术水准的标志,故此各制胶企业为提高明胶透明和色泽不遗余力,绞尽脑汁,方法多种多样,不一而足,确实取得了很大的进步。但是我们在不断采用新技术、新工艺的前提下     

明胶脱色以提高透明度的方法

改善明胶色泽和提高产品胶的透明度是众多制胶厂致力研究的问题之一。本文提供了一个较有效、易行的方法,今特郑重推荐,以飨读者。     

透明香皂的研制

介绍了生产透明香皂的新配方和新工艺 ,提出了透明香皂的企业标准。新工艺用丙二醇取代传统工艺所用的乙醇做溶剂 ,生产周期大为缩短。采用速冻隧道设备 ,可方便地实现不同品种的切换 ,操作方便 ,设备投资少 ,产品综合成本低 ,具有较大的工业应用价值     

树脂型胶印油墨用透明胶质钙的研制

就树脂胶印油墨用碳酸钙在研制中的一些技术问题进行了探讨，实验表明油墨的透明度与胶质钙的粒径，晶型相关性，适宜的表面活性剂可增加胶质钙的分散性，并提出了对其透明及流动度控制和检测方法。     

Conductance behavior of lithium soaps in aqueous methanol

Conductance behavior of lithium soaps (abietate, oleate, and myristate) has been used to evaluate the true dissociation constant, limiting molar conductance, and thermodynamic parameters (viz., enthalpy, free energy, and entropy changes) for dissociation. The soaps behave as week electrolytes in mixtures, and the Debye-Huckel-Onsagar equation is not applicable for these soap solutions.     

乙烯质量分数对共聚透明PP性能的影响

讨论了乙烯质量分数[ω（C2H4）]对无规共聚透明聚丙烯(PP)性能的影响,并在保证透明度的同时,提出了其加入范围。试验证明,随着ω（C2H4）的增加,无规共聚PP的屈服拉伸强度、热变形温度降低,冲击强度有了明显的提高,雾度有降低趋势。含有较高ω（C2H4）(如大于4％)的PP,具有相对较低的雾度(38％左右),是透明PP专用树脂的良好基料。添加透明剂A的无规共聚透明PP,ω（C2H4）至少在3％以上,专用树脂的透明度和其他性能良好。     

Fabrication of highly transparent AlON ceramics by hot isostatic pressing post-treatment

Highly transparent aluminum oxynitride (AlON) ceramics were fabricated by pressureless sintering with hot isostatic pressing (HIP) post-treatment. The experimental results showed that the optical transparency of AlON ceramics was improved markedly over the visible and near-infrared range by HIP at 1825 °C for 3 h in 200 MPa argon gas, which derived from the elimination of residual pores in the prepared ceramics. For AlON ceramics pre-sintered at 1800 °C, the transmittances of the sample increased from 63.6% to 84.8% at 600 nm and from 75.4% to 86.1% at 2000 nm, respectively. The average grain size of the HIPed sample was about 47.9 μm.     

透明皂的行业标准(报批稿)

最近,由国家洗涤用品质量监督检验中心(太原)与相关企业联合起草了《透明皂》和《洗手液》等行业标准报批稿,即将向上级部门申请报批。为了使读者对以上新近推出的标准的报批稿能有一个初步的了解和认识,本刊特地摘编,以飨广大读者。     

Rheological behavior of semi‐aromatic transparent polyamide

The rheological behaviors of semi‐aromatic transparent polyamide (SATPA) melt are investigated using a capillary rheometer. The effects of shear rate, shear stress, and temperature on the apparent viscosity η_a of SATPA are discussed. A correlation of non‐Newtonian index with temperature is obtained. The results show the shear thinning of SATPA; meanwhile η_a decreases with increasing temperature and shear rate, and the viscous flow activation energy is further obtained from temperature dependence of the samples. It was concluded that the apparent viscosity η_a is sensitive to temperature at lower shear rate owing to the higher viscous flow activation energy; on the contrary, the influence of temperature effect on the apparent viscosity becomes minor at higher shear rate due to the lower viscous flow activation energy. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 97: 1586–1589, 2005     

Fabrication of sub-micrometer MgO transparent ceramics by spark plasma sintering

Transparent MgO ceramics were fabricated by spark plasma sintering (SPS) of the commercial MgO powder using LiF as the sintering additive. Effects of the additive amount and the SPS conditions (i.e., sintering temperature and heating rate) on the optical transparency and microstructure of the obtained MgO ceramics were investigated. The results showed that LiF facilitated rapid densification and grain growth. Thus, the MgO ceramics could be easily densified at a moderate temperature and under a low pressure. In addition, the transparency and microstructure of the MgO ceramics were found to be strongly dependent on the temperature and heating rate. For the MgO ceramics sintered at 900 °C for 5 min with the heating rate of 100 °C/min and the pressure of 30 MPa from the powders with 1 wt% LiF, the average in-line transmittance reached 85% in the range of 3 – 5 μm, and the average grain size is ∼0.7 μm.     

高透明棚膜专用线型低密度聚乙烯DFDA-9047的开发

通过研究线型低密度聚乙烯(LLDPE)树脂透明改性技术及机理,调整生产工艺条件,在LLDPE粉料挤出造粒过程中,添加透明复合助剂,开发生产了高透明棚膜专用LLDPE DFDA-9047。生产DFDA-9047时,装置运行平稳,生产过程中的熔体流动速率、密度变化不大,拉伸性能远好于未添加透明复合助剂的LLDPE DFDA-7047;用其吹塑的薄膜透光率、雾度(10.2%)、落镖冲击破损质量均好于用DFDA-7047吹塑的薄膜,其棚膜性能与用国内处于领先地位的同类产品DFDA-9085吹塑的棚膜相当。     

温度对羧二酸金属皂稳定性的影响

首次采用热重分析法研究了羧二酸钙盐和锌盐在多种温度下的分解动力学,发现脂肪酸金属盐的分解速率常数的数值大约在相同的数量级,但戊二酸盐比琥珀酸盐更稳定。测定了羧二酸金属盐的分解焓、熵和活化自由能,热力学数值显示反应体系是一个放热且不可自发的过程。