Silicone quaternary ammonium salt based nanocomposite: a long-acting antibacterial cotton fabric finishing agent with good softness and air permeability

Cellulose ◽  
2019 ◽  
Vol 27 (2) ◽  
pp. 1055-1069 ◽  
Author(s):  
Dangge Gao ◽  
Yajuan Li ◽  
Bin Lyu ◽  
Dina Jin ◽  
Jianzhong Ma
Keyword(s):  
Cotton Fabric ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Air Permeability ◽  
Finishing Agent ◽  
Long Acting ◽  
Fabric Finishing

scholarly journals Properties of Cotton Fabric Modified with a Chitosan Quaternary Ammonium Salt Nanoparticle

2018 ◽  
Vol 26 (4(130)) ◽  
pp. 116-121 ◽  
Author(s):  
Wei Zhang ◽  
Xinlan Dai ◽  
Jinjie Zhou
Keyword(s):  
Cotton Fabric ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Cellulose Fibre ◽  
Water Soluble ◽  
Chitosan Derivative ◽  
Covalent Bonds ◽  
Wrinkle Resistance ◽  
Alkaline Conditions

In this study, a novel fibre-reactive nanoparticle was synthesised in three steps. First a water-soluble chitosan derivative, N-[(2-hydroxy-3-trimethylammonium)propyl] chitosan chloride (short for HTCC), was prepared by reacting chitosan with 2,3-epoxypropyltrimethylammonium chloride. Second the HTCC was further modified by reacting it with N-(hydroxymethyl)- acrylamide to prepare a fibre-reactive chitosan derivative, O-methyl acrylamide quaternary ammonium salt of chitosan (short for NMA-HTCC), which can form covalent bonds with cellulose fibre under alkaline conditions. Thirdly NMA-HTCC nanoparticles were prepared by the ionotropic gelation reaction method. The particle size and TEM researches indicated that the globular NMA-HTCC nanoparticle with a size distribution of 15 - 50 nm was successfully prepared and presented good dispersity and stability. Then the NMA-HTCC nanoparticle was used for the textile finishing of cotton fabric. The modified cotton fabric demonstrated excellent durable wrinkle-resistance and antibacterial activity against Staphylococcus aureus and Escherichia coli, even after 50 repeated launderings. Moreover the shrinkage-resistance of the modified cotton fabric was distinctly improved, and the contact angle was slightly larger, while the whiteness and mechanical properties had not changed in an obvious way.

Investigation on Dyeing Performances of the Modified Cotton Fabric with Quaternary Ammonium Salt as Modifier

2014 ◽  
Vol 685 ◽  
pp. 141-143
Author(s):  
Ming Shu Song ◽  
Jie Lin ◽  
De Hong Cheng ◽  
Sheng Lu ◽  
Xu Hao ◽  
...  
Keyword(s):  
Cotton Fabric ◽  
Ammonium Salt ◽  
Salt Concentration ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Breaking Strength ◽  
Dyeing Process ◽  
Low Salt ◽  
Structure Modifier ◽  
Modification Condition

In this paper the different kind of quaternary ammonium salt was applied to modify the cotton fabric and then the modified cotton fabric was dyed under low salt condition. The effect of modifier structure, modifier concentration, modification time and temperature on the dyeing performances of the modified cotton fabric was investigated. The results indicated that the optimal modification condition was that the modifier was Octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate, modifier concentration was 40 g/L, modification time was 40 min, modification temperature was 60 °C and the salt concentration was 25% of the conventional dosage. The K/S value, soaping fastness and breaking strength of the modified cotton fabric under low salt condition was the same level as the conventional dyeing process.

Preparation and characterization of reactive chitosan quaternary ammonium salt and its application in antibacterial finishing of cotton fabric

2016 ◽  
Vol 87 (6) ◽  
pp. 759-765 ◽  
Author(s):  
W Zhang ◽  
JJ Zhou ◽  
XL Dai
Keyword(s):  
Antibacterial Activity ◽  
Ammonium Chloride ◽  
Cotton Fabric ◽  
Ammonium Salt ◽  
Chemical Reaction ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Antibacterial Activities ◽  
Water Soluble ◽  
Better Than

The water soluble and reactive O-methyl acrylamide quaternary ammonium salt of chitosan (NMA-HTCC) was prepared with a view to develop an antibacterial finishing on cotton fabric. 2-hydroxypropyltrimethyl ammonium chloride chitosan (HTCC) was synthesized by the chemical reaction of chitosan and 2,3-epoxypropyltrimethyl ammonium chloride. Then, NMA-HTCC with reactive groups was synthesized by the chemical reaction of HTCC and N-(hydroxymethyl) –acrylamide, and its chemical structure was characterized by the Fourier transform infrared spectroscopy and nuclear magnetic resonance (NMR). The antibacterial activities of chitosan and NMA-HTCC were tested and compared by the minimal inhibitory method. Cotton fabrics were finished by NMA-HTCC under the alkalinity condition using sodium bicarbonate as the catalyst. The antibacterial activity of cotton fabric before and after finishing was measured by the oscillation flask method. The results showed that both chitosan and NMA-HTCC had a significant antibacterial effect on staphylococcus and coli, and the antibacterial activity of NMA-HTCC was better than that of chitosan. The antibacterial activity of cotton fabric to staphylococcus and coli were significantly improved after finishing by chitosan and NMA-HTCC, and the antibacterial activity of the cotton fabric finished by NMA-HTCC was better than that finished by chitosan.

Catalyst- and oxidant-free electrochemical para-selective hydroxylation of N-arylamides in batch and continuous-flow

2020 ◽  
Vol 22 (19) ◽  
pp. 6437-6443
Author(s):  
Cheng-Kou Liu ◽  
Meng-Yi Chen ◽  
Xin-Xin Lin ◽  
Zheng Fang ◽  
Kai Guo
Keyword(s):  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Continuous Flow ◽  
Quaternary Ammonium Salt ◽  
Selective Hydroxylation

A catalyst-, oxidant-, acidic solvent- and quaternary ammonium salt-free electrochemical para-selective hydroxylation of N-arylamides at rt in batch and continuous-flow was developed.

Synthesis and Performance of Polyoxy-ethylene Ester Quaternary Ammonium Salt

2013 ◽  
Vol 50 (1) ◽  
pp. 9-13 ◽  
Author(s):  
Yong-Qiang Sun ◽  
Wen-Jing Li ◽  
Wan-Xu Wang ◽  
Qiu-Xiao Li ◽  
Wieslaw Hreczuch ◽  
...  
Keyword(s):  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
And Performance

Instability of Solutions of Quaternary Ammonium Permanganates in Dichloromethane

1997 ◽  
Vol 62 (6) ◽  
pp. 849-854 ◽  
Author(s):  
Vladislav Holba ◽  
Renata Košická
Keyword(s):  
Ammonium Salt ◽  
Rate Constants ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Activation Parameters ◽  
The Stability

The paper deals with instability of solutions of quaternary ammonium permanganates, QMnO4 (Q = tetraethyl-, tetra-1-propyl-, tetra-1-butyl-, tetra-1-pentyl-, tetra-1-octyl-, and cetyltrimethylammonium), in dichloromethane and presents the rate constants and activation parameters of the reduction of permanganate. Attention was paid to the properties of colloidal Mn(IV) intermediate. The stability of the solutions depends markedly on the quaternary ammonium salt used.

Systematic exploration of quaternary ammonium salt adsorption on oxidized coal based on experiments and MD simulations

Fuel ◽  
2021 ◽  
Vol 287 ◽  
pp. 119434
Author(s):  
Jun Chen ◽  
Hongliang Li ◽  
Chunfu Liu ◽  
Lingyun Liu ◽  
Yu Sun ◽  
...  
Keyword(s):  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Md Simulations ◽  
Oxidized Coal ◽  
Systematic Exploration

scholarly journals Antibacterial performance of polymer quaternary ammonium salt–capped silver nanoparticles on Bacillus subtilis in water

RSC Advances ◽  
2019 ◽  
Vol 9 (44) ◽  
pp. 25667-25676 ◽  
Author(s):  
Jingyu Wang ◽  
Minghao Sui ◽  
Zhanfang Ma ◽  
Hongwei Li ◽  
Bojie Yuan
Keyword(s):  
Silver Nanoparticles ◽  
Bacillus Subtilis ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Antibacterial Performance ◽  
Antibacterial Capacity

Polymer quaternary ammonium salt–capped silver nanoparticles (PQAS–AgNPs) were synthesized, and they exhibited significant antibacterial capacity against Bacillus subtilis.

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