Results 1 to 10 of about 15,728 (247)

Application of response surface methodology (RSM) for optimizing the palm-based pentaerythritol ester synthesis [PDF]

Industrial Crops and Products, 2014
The present study was performed to optimize reaction parameters for the transesterification reaction of palm oil methyl ester and pentaerythritol by using response surface methodology (RSM).
Nur Atiqah Mohamad Aziz, Robiah Yunus, Azhari Muhammad Syam   +2 more
exaly   +3 more sources

Synthesis and Study on Anti-Wear Properties of Pentaerythritol Monooleate [PDF]

Cailiao Baohu, 2021
For promoting the application of ester diesel anti-wear agent, pentaerythritol monooleate was synthesized from pentaerythritol and oleic acid in the presence of solid acid catalyst.The obtained product’s structure was confirmed to be pentaerythritol ...
HE Chao-liang, ZHANG Xiao-xing
doaj   +1 more source

Features of the synthesis of pentaerythritol esters and carboxylic acids of aliphatic isomeric structure

Тонкие химические технологии, 2022
Objectives. Due to their structures, pentaerythritol esters have a number of appealing properties such as high viscosity index when used as oils and excellent compatibility with polyvinyl chloride when used as plasticizers.
V. V. Emelyanov, E. L. Krasnykh, D. A. Fetisov, S. V. Levanova, V. A. Shakun   +4 more
doaj   +1 more source

Monitoring tert-Butylhydroquinone Content and Its Effect on a Biolubricant during Oxidation

Molecules, 2022
The use of biolubricants as a replacement for petroleum-based products is becoming more and more important, due to the current global energy and crude oil scenario. Thus, the production of biolubricants (which could take place in biorefineries) should be
Sergio Nogales-Delgado, Agustina Guiberteau Cabanillas, Ángela García Romero, José María Encinar Martín   +3 more
doaj   +1 more source

One Pot Facile Synthesis of Self-extinguishable Metal Based Flame Retardant for Cotton Fabric

Journal of Natural Fibers, 2022
An efficient metal-based flame-retardant was prepared for cotton fabric (CF) by a convenient pad-dry-cure method, which involves the consecutive deposition of intumescent containing different combination of ammonium polyphosphate, melamine ...
Annu Dalal, Nisha Bagotia, Krishan K. Sharma, Kalesh N. Chatterjee, Parul Bansal, Surender Kumar   +5 more
doaj   +1 more source

"Application of melamine pyrophosphate/pentaerythritol intumescent flame retardant in natural rubber"

Hecheng xiangjiao gongye, 2022
The effect of intumescent flame retardant, melamine pyrophosphate (MPP)/pentaerythritol (PER) on the flame retardancy, thermal stability, carbon residue morphology and mechanical properties of natural rubber (NR) vulcanizates were studied.
WANG Jian1, JIA Yu-hui2, SHEN Rui-bing2, HE Bing-yao2, LIANG Yu-rong1,2
doaj   +1 more source

Tribological performance of organic molybdenum in the presence of organic friction modifier.

PLoS ONE, 2021
The tribological performance of organic molybdenum in the present of organic friction modifier was investigated in this study. Three types of organic friction modifiers were selected, which are Glycerol monooleate, Pentaerythritol and N,N ...
Weiwei Wang, Zhuangzhuang Liu, Qimin Song, Xindi Zhang, Shengkai Jiao, Yao Xu, Quanda Xu, Dezun Sheng   +7 more
doaj   +3 more sources

In vitro release of chlorhexidine from UV-cured PEGDA drug delivery scaffolds

Current Directions in Biomedical Engineering, 2021
Drug delivery systems (DDS) are suitable for controlled local drug release in order to ensure safety and effectiveness of medical treatment. The choice and characterization of biomaterials that can be used as a DDS is a challenging step in the ...
Rekowska Natalia, Riess Alexander, Mau Robert, Eickner Thomas, Seitz Hermann, Grabow Niels, Teske Michael   +6 more
doaj   +1 more source

对甲苯磺酸催化合成季戊四醇异硬脂酸酯 工艺优化及其表征分析Synthesis process optimization and characterization of pentaerythritol isostearate catalyzed by p-toluenesulfonic acid

Zhongguo youzhi, 2023
为改善现有季戊四醇异硬脂酸酯生产工艺存在的反应时间长、反应温度高、效率低等问题，研究采用对甲苯磺酸催化季戊四醇与异硬脂酸酯化合成季戊四醇异硬脂酸酯。以异硬脂酸酯化率为考察指标，利用单因素实验和正交实验对酯化工艺条件进行优化，对酯化粗产物进行除酸提纯处理，并对粗产物进行红外光谱分析，对除酸提纯产物进行质谱分析、热重分析及性能指标测定。结果表明：最优的酯化反应工艺条件为反应时间5 h、反应温度140 ℃、催化剂用量1%（基于反应总投料质量）、异硬脂酸与季戊四醇物质的量比值4.3，在此条件下酯化率为99.27%
刘小强，范明明，张萍波 LIU Xiaoqiang, FAN Mingming, ZHANG Pingbo
doaj   +1 more source

Plastisol Foaming Process. Decomposition of the Foaming Agent, Polymer Behavior in the Corresponding Temperature Range and Resulting Foam Properties [PDF]

, 1998
The decomposition of azodicarbonamide, used as foaming agent in PVC - plasticizer (1/1) plastisols was studied by DSC. Nineteen different plasticizers, all belonging to the ester family, two being polymeric (polyadipates), were compared.
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Savin, AA, Saxon, DH, Schioppa, M, Schlenstedt, S, Schmidke, WB, Schneekloth, U, Schott, W, Schwarzer, O, Sciulli, F, Sedgbeer, JK, Seiden, A, Selonke, F, Shah, TP, Shcheglova, LM, Sideris, D, Simmons, D, Sinclair, LE, Smith, WH, Solano, A, Solomin, AN, St-Laurent, M, Staiano, A, Stairs, DG, Stamm, J, Stanco, L, Stanek, R, Stifutkin, A, Straub, PB, Strickland, E, Stroili, R, Surrow, B, Susinno, G, Suszycki, L, Sutton, MR, Suzuki, I, Talaga, RL, Tapper, RJ, Tassi, E, Terrón, J, Teuscher, RJ, Tickner, JR, Tiecke, H, Tokushuku, K, Toothacker, WS, Trefzger, T, Tsurugai, T, Tuning, N, Tymieniecka, T, Uijterwaal, H, Ullmann, R, Umemori, K, Vaiciulis, A, van Sighem, A, Verkerke, W, Voci, C, Vossebeld, J, Votano, L, Voß, T, Vreeswijk, M, Walczak, R, Walenta, AH, Walker, R, Wang, SM, Waters, DS, Waugh, R, Wedemeyer, R, Westphal, D, Whitmore, JJ, Wichmann, R, Wick, K, Wieber, H, Wiggers, L, Williams, DC, Wing, M, Wodarczyk, M, Wolf, G, Wollmer, U, Wrńblewski, AK, Wu, JT, Wölfle, S, Yamada, S, Yamashita, T, Yamauchi, K, Yamazaki, Y, Yoshida, R, Youngman, C, Zaja̧c, J, Zakrzewski, JA, Zamora Garcia, Y, Zarnecki, AF, Zawiejski, L, Zetsche, F, Zeuner, W, Zhang, H, Zhu, Q, Zichichi, A, Zotkin, SA   +424 more
core   +3 more sources