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Nairaland Forum / Science/Technology / Dendritic Polymers Have Obvious Application Advantages And Prospect. (855 Views)
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Dendritic Polymers Have Obvious Application Advantages And Prospect. by xiaomoye: 2:46pm On Sep 15, 2013 |
Dendritic polymers have obvious application advantages and prospect. In the production of controlled released fertilizer, changing processing methods can obtain controlled release fertilizer of different application way as dendritic polymers have special cavity structures and functional surface groups, the fertilizer has long release time and active ingredient is uniformly released, it’s biodegradable and environment friendly, there’s nitrogen in the degradable product that can be absorbed by the plants. Such as: Application 1: It can replace traditonal sealants and used as toughening agents for the ourter resin of the sulfur coated controlled release fertilizer, compared to the traditional sealants, dosage is less but performance is good, it can not only increase the strength but also decrease the coating void, thus realizing effect release, besides, it’s degradable and won’t pollute the earth. Application 2: As coating material, it’t won’t need porogen or less dosage is ok, itself is nanopore structure and have long release time, the release effect is uniform, the coaitng has good impact and tensile strength, can be coated uniformly. Application 3: Used as carriers for fertilizer. Dendrimers have void space to coat the fertilizer, i.e use dendrimers as additives to mix with fertilizer, coat the fertilizer in the cavity of dendrimers, and then it can be effectively released, which meant to prepare dendritic controlled release fertilizer. Weihai CY Dendrimer Technology Co. Ltd.-Professional Manufacturer for low cost dendritic polymers. |
Re: Dendritic Polymers Have Obvious Application Advantages And Prospect. by xiaomoye: 2:49pm On Sep 15, 2013 |
Application of dendrimers in slow release pesticide Compared with ordinary pesticide, slow release pesticide with dendrimers have following advantages: 1) solubility to decrease dosage 2) reduce pesticide loss in the environment to enchance the utilizatioin ratio 3) increase adhesion and retention of pesticide on plants, prolong retention time 4) Increase penetration to the plants and insects to improve pesticide effect 5)Control pesticide release speed to have functional and energy saving pesticide 6)Long term effect by one time usage 7) Resistance to rain, weather and improve environmental stability Example as following: Dendritic polymers were used as pesticide carriers to mix with dichlorophenoxyacetic acid (2,4-D). The result showed dendritic polymers can well coat herbicide 2,4-D. Further crop experiments showed that the pesticide with dendritic polymers as carriers had good slow release performance. Compared with the traditional pesticide,the dendritic pesticide performance was increased by 2-4 times, and had excellent resistance to rain, weather and other environmental. The slow release pesticide can be controlled at slowed-release period and release time can be increased up to 1-3 months. Weihai CY Dendrimer Technology Co. Ltd.-Professional Manufacturer for low cost dendritic polymers. |
Re: Dendritic Polymers Have Obvious Application Advantages And Prospect. by xiaomoye: 2:53pm On Sep 15, 2013 |
Effective application of dendrimer-based mesoporous catalyst in hydrogenation reaction of unsaturated hydrocarbons. Nanoparticles are easily oxidized and agglomerating in the application and storage, thus affecting its catalytic activity and selectivity. A lot of catalysts have excellent catalytic performance are often homogeneous catalysts, which brings enormous waste and pollution for catalyst recovery and utilization. To meet the lubricants requiremens of high-quality,energy saving, extending oil change period and low emissions, base oil is required to have a low viscosity, low volatility, high viscosity index, excellent oxidation stability characteristics.Dendrimer-based mesoporous catalyst compared with the prior technology has significant features and progress: a) nanoparticles protected by inorganic-organic shell have stable performance; 2) convenient recycling and non pollution ; 3) can be recycled; 4) controllable reaction rate and selectivity. The result has proved that the dendrimer Pd-Gn-mesoporous catalyst has higher catalytic activity of the hydrogenation, the reaction activity can be controlled by different type of catalyst, and the selectivity of saturated hydrocarbons increased with the generation increases, raised from 79% of 1 generation to 93.4% and 91.4% of 3,4-generation, thus inhibiting the byproduct production of ketone, which has important practical significance on catalytic hydrogenation.In contrast to homogeneous catalyts, catalytic activity has been improved, selectivity is 20% higher than heterogeneous catalysts (75%).Weihai CY Dendrimer Technology Co. Ltd.-Professional Manufacturer for low cost dendritic polymers. |
Re: Dendritic Polymers Have Obvious Application Advantages And Prospect. by xiaomoye: 2:57pm On Sep 15, 2013 |
Dendrimer-based resin molded products have broad application prospects. Dendrimers have promising application in touch panel of household electrical appliances, or mobile phones, game consoles, sound recorders, laptop computers and other machines operating department and other various resin molded products, in particular, relates to a resin molding material and the surface protection film-integrated insert molding resin. Now in the market, film surface is curved or angled which is easy to crack. In order to prevent cracking, approach used to improve flexibility will lead to lower hardness, intolerant abrasions. Dendritic polymer resin molding is to provide a product with sufficient surface hardness, and the film insert molding integrally without cracking occurs and have excellent in appearance. As the special cavity structure and functional group of dendrimer,it may be used to provide a film insert molding, i.e. in the molding there’s no cracking or bleaching, is excellent in scratch resistance of the surface.Weihai CY Dendrimer Technology Co. Ltd.-Professional Manufacturer for low cost dendritic polymers. |
Re: Dendritic Polymers Have Obvious Application Advantages And Prospect. by xiaomoye: 3:01pm On Sep 15, 2013 |
Superior performance of dendrimers based pesticide composition. Dendrimer-based pesticide composition is a amphipathic substance (hydrophilic group and a hydrophobic group), the composition is in the form of concentrate, when being diluted with water, it forms small particles (micelles). Compared to the previous compositions, the insecticidal properties of the composition has been significantly improved, as in the control of pests, bioavailability, and other soil mobility, the composition can control the pests. Thus, pesticide compositions can be combined with one or more of the active ingredient, or different compound, to improve bioavailability of pesticides or pesticide formulations, reduce metabolism, reduce toxicity, increased chemical or photochemical stability, increase soil mobility.Weihai CY Dendrimer Technology Co. Ltd.-Professional Manufacturer for low cost dendritic polymers. |
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