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Selection and preparation of thin layer chromatography solvent/developing agent/color developer and matters needing attention
Time of Update: 2020-10-25
related topics thin layer analysis (T LC) technology thin layer chromatography method summary 1. Method principle (1) flow phase using capillary force with the sample through the fixed phase.
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Selection and preparation of thin layer chromatography solvent/developing agent/color developer and matters needing attention
Time of Update: 2020-10-20
Generally, the solvent with a large percentage of the developing agent can be selected from the order of cyclohexane -> toluene -> xylene -> benzene -> chloroform according to the polarity requirements.
A polar organic solvent (chloroform, ethyl acetate, methanol, n-butanol) and water are used in the developing agent.
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LANXESS develops colored polyamide connector cable harnesses for electric vehicles
Time of Update: 2023-01-19
. "Compared to polyamides protected with red phosphorus, our halogen-free flame retardant compounds can also be dyed in bright, vibrant colours such as orange (RAL 2003) and yellow," says Bernhard Stoll, specialist in plastics use for electrical and electronic components at LANXESS .
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The new color lake development technology has seen practical results
Time of Update: 2023-01-05
(Wang Han) China Food News(November 21, 2022, Version 06)(Responsible editor: Yang Xiaojing) "The potential health hazards of aluminum have caused widespread concern in the food industry, and some aluminum-containing additives have been restricted or banned, such as aluminum-containing indigo lake being banned in children's puffed foods, resulting in a blank of lake-like blue pigments in the production of this type of food.
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The Institute of Chemistry has developed a new strategy for structural color 3D printing
Time of Update: 2023-01-01
3D structural color printers and various complex 3D photonic crystal structures and optical transmission structures Three-dimensional photonic crystals have attracted attention due to their unique optical properties and have shown broad application prospects in various fields.
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Yuan Dongdong, associate professor of Beijing Technology and Business University: New color lake
Time of Update: 2022-11-25
Responsible editor: Zhao Yu Review: Wang Jinchen "The potential health hazards of aluminum have attracted more and more attention in the food industry, resulting in the restriction or prohibition of the use of some aluminum-containing additives, such as the ban of aluminum-containing indigo lake in children's puffed foods, resulting in a blank of lake-like blue pigments in the production of this type of food.
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Shanghai universities have developed color solar cell devices
Time of Update: 2022-11-22
solar cell As a special nanostructure, the anti-opal structure can effectively optimize the optical and electrical properties of the material; Thin films with an anti-opal structure can form photonic crystals, demonstrating many of the superior properties of photonic crystals.
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The Institute of Genetics and Development, Chinese Academy of Sciences, etc. have achieved rapid
Time of Update: 2022-10-20
With the ripening of the fruit, carotenoids (mainly lycopene) accumulate in the pulp of the red fruit material, and flavonoids (mainly naringenin chalcone) accumulate in the peel, accompanied by the rapid degradation of chlorophyll.
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Silicone: high-quality development is more colorful
Time of Update: 2022-10-12
, with a number of silicone industry clusters and industrial parks, has become a global silicone production center, and created an internationally influential and national landmark new material industry 。 In the past decade, China's silicone monomer production capacity has continued to grow, with a compound growth rate of 7.
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Researchers develop new TPU powder for 3D printing colored parts
Time of Update: 2022-08-24
New 3D printing powder from the Duisburg groupNew 3D printing powder from the Duisburg groupTo overcome the color limitations of benchtop LPBF, the research team hypothesized that nanoscale photothermal sensitizers could be added to the 3D printed TPU powder .
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Southeast University has developed a thin-film flexible sensor for real-time color sensing and electrical signal monitoring
Time of Update: 2022-08-23
They introduced conductive CNTs-PDA fillers into elastic PU inverse opal scaffolds, which have stable tensile properties and bright structural colors due to the good flexibility and inverse opal structure of the PU layer .
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Clariant, ExxonMobil and Plasivaloire develop new color range
Time of Update: 2022-08-18
Clariant Masterbatches, polymer producer ExxonMobil has teamed up with the Plastivaloire Group, an automotive interior design company, to develop a vast new range of colors Clariant Masterbatches, polymer producer ExxonMobil has teamed up with the Plastivaloire Group, an automotive interior design company, to develop a vast new range of colors .
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A polymer that develops color under force and can increase its strength, and crystals can also develop color
Time of Update: 2021-11-06
(2) It is worth mentioning that the above-mentioned method can be used to study the visualization of polymer crystallization: The TASN skeleton is introduced into the center of the crystalline polyester molecular chain that generates stable fluorescent free radicals through mechanical stimulation cleavage, and successfully Directly visualize and quantify the stable groups produced during the polyester crystallization process, and three-dimensional observations can be made through a confocal fluorescence microscope .
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U.S. researchers have developed automatic color-changing camouflage materials that will advance the technological innovation of hull antifouling coatings
Time of Update: 2021-10-07
Global Coatings Network News: Global Coatings Network News: Researchers at the Massachusetts Institute of Technology (MIT) in the United States sought inspiration from the best camouflage artists in nature (such as octopus, squid, and squid), and developed a method for designing soft materials that can change colors or Fluorescence also causes the texture of the material to change.
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Stimulate the potential of corporate innovation and sustainable development-Interview with Li
Time of Update: 2021-09-12
On August 24th, our reporter had an in-depth exchange with Evante Asia Vice President and General Manager of Color and Additives Division Asia, Li Qianrong on the company's target positioning, sustainable development strategy, and helping customers achieve their goals .