220results about How to "Renewable" patented technology

The present invention is one kind of environment friendly energy-saving diesel oil and its compounding process, and belongs to the field of petroleum technology. The environment friendly energy-saving diesel oil is compounded with fatty methyl ester 5-50 wt%, base oil 10-60 wt%, GB diesel oil 5-50 wt%, cetane number improver 0.1-2 wt%, pour point depressant 0.1-2 wt%, viscosity regulator 1-10 wt%, deodorant 0.1-2 wt%, smoke-eliminating oil saver 0.1-2 wt%. The production process of the present invention is simple and low in cost, and the environment friendly energy-saving diesel oil has lowered consumption, high dynamic property, high stability, good low temperature starting performance and environment friendship.

The invention discloses amphoteric cellulose material and application thereof. Cellulose is subjected to alkali pretreatment to obtain alkali cellulose and achieve hydroxyl activation; 3-chloro-2 hydroxypropyl trimethyl ammonium chloride is used as etherifying agent to perform quaternization modification on the alkali cellulose so as to obtain quaternized cellulose; ceric ammonium nitrate is used as initiator and monomer 2-acrylamide-2-methyl propane sulfonic acid to perform sulphonation on the quaternized cellulose. The prepared quaternized and sulfated cellulose has good hydrophilicity, high reaction activity, bulky macrostructure and porous microstructure, is capable of adsorbing negatively charged anion, negatively charged anionic compound, positively charged cation and positively charged compound in the same time, is high in adsorption capacity, is applicable to the fields such as treatment of heavy metal ion waste water and treatment of organic waste water, and can also serve as functional carriers of other materials.

The invention discloses a preparation method of a modified cellulose heavy metal adsorbent. The method includes the steps of: 1. preparation of alkalized cellulose; 2. preparation of oxidized cellulose; and 3. preparation of polyamino modified cellulose. The method specifically includes: firstly conducting alkali pretreatment on cellulose to obtain alkalized cellulose, then using sodium periodate as the oxidizing agent to carry out selective oxidation on the alkalized cellulose to obtain oxidized cellulose, then using glutaraldehyde as the cross-linking agent, and employing a polyamino compound to conduct amination modification on the oxidized cellulose, thus obtaining the modified cellulose heavy metal adsorbent. The method provided by the invention has the advantages of relatively mild preparation conditions, simple process, convenient operation, easy large scale, and good industrial popularization prospect. The product has strong heavy metal adsorption ability, and can be used for heavy metal ion wastewater, organic wastewater treatment and other fields.

The invention discloses a plant fiber reinforcing type heat-preservation inflaming-retarding phenolic foam material and a preparing method of the plant fiber reinforcing type heat-preservation inflaming-retarding phenolic foam material. The plant fiber reinforcing type heat-preservation inflaming-retarding phenolic foam material is formed by adding plant fibers which have different lengths and are of a hollow structure into phenolic resin. The preparing method of the plant fiber reinforcing type heat-preservation inflaming-retarding phenolic foam material comprises the steps that the dried plant fibers, obtaining through cutting, with the different lengths are mechanically mixed with the phenolic resin, an emulsifying agent, a coupling agent, a foaming agent and a curing agent, the mixture is cured and foamed for 30 min to 120 min at the curing temperature ranging from 45 DEG C to 80 DEG C, and then the plant fiber reinforcing type phenolic foam material used for internal walls and external walls of buildings is obtained after demolding. According to the plant fiber reinforcing type heat-preservation inflaming-retarding phenolic foam material and the preparing method of the plant fiber reinforcing type heat-preservation inflaming-retarding phenolic foam material, phenolic foam is reinforced through the environment-friendly and renewable natural plant fibers, the heat-preservation property and the inflaming-retarding property of the material are good, and the production cost of the phenolic foam material is greatly reduced due to the fact that the plant fibers are cheap and easy to obtain.

The invention provides a dual-modified maltodextrin high efficiency water reducing agent. The structural formula is disclosed as Formula I, wherein R1, R2 and R3 are respectively and independently sulfonate, mono dicarboxylate or hydrogen, and at least comprise one sulfonate (SO<3->) and one mono dicarboxylate. The invention also provides a preparation method of the water reducing agent. The preparation method comprises the following steps: diluting concentrated sulfuric acid with an organic solvent, carrying out sulfonation on maltodextrin at low temperature, carrying out esterification reaction on the sulfonation product by using dibasic acid anhydride, finally, dissolving the product in water, and adding an alkali for neutralization. The dual-modified maltodextrin high efficiency water reducing agent has the advantages of high water solubility and better water reducing performance than most naphthalene high efficiency water reducing agents at present, can be used as a cement water reducing agent, and has the characteristics of recoverability, no environmental pollution and the like.

The invention discloses a 2,5-furandimethanol diester plasticizer, which is as shown in the formula (I), and discloses a preparation method of the 2,5-furandimethanol diester plasticizer. The preparation method comprises the following steps of, under the protection of an inert gas, carrying out esterification reaction on 2,5-furandimethanol and monocarboxylic acid under the joint action of a catalyst and a water carrying agent, and carrying out post treatment on a reaction product to obtain the 2,5-furandimethanol diester plasticizer. The plasticizer has the characteristics of no toxicity, environmental friendliness and the like, is used as a plastic plasticizer and has the advantage that a raw material can be regenerated; the dependency on a petrochemical resource when a plasticizer is prepared is greatly decreased, and meanwhile, the environmental pollution problem brought by a conventional petroleum-based plasticizer is solved at the same time. The formula (I) is shown in the description.

The invention discloses a method for preparing composite fibers in an ionic liquid medium. The method comprises the following steps: (1) oxidating cellulose into carboxyl cellulose in an oxidation system prepared from ionic liquid, nitric acid and NaNO2, and preparing a carboxyl cellulose solution; (2) subjecting silkworm cocoons to soda boiling, degumming, LiBr dissolving, dialysis and vacuum freeze drying so as to obtain silk fibroin, and then, preparing a silk fibroin solution in ionic liquid; (3) grafting the carboxyl cellulose to the silk fibroin in ionic liquid, thereby obtaining the composite fibers. According to the method, the ionic liquid serves as a solvent, cellulosic materials and the silkworm cocoons serve as raw materials, the chemical principle of amidation reaction is adopted, the preparation process is simple, the reaction is green, environment-friendly and pollution-free, the ionic liquid solvent can be recovered and reused through rotary-evaporation drying, and the recovery rate reaches 98%. The reaction system only needs an isothermal reaction of 1 to 2 hours, the percentage of grafting of the cellulosic materials reaches 21% to the maximum, and the composite fibers are excellent in mechanical properties, crinkle resistance, wear resistance and hygroscopic property and are degradable and reproducible.

The invention belongs to the field of lignocellulose enzymatic hydrolysis, and discloses a method for improving cellulose enzymatic hydrolysis and saccharification yield by using a mixture of lignin sulfonate and straight-chain alcohol as an enzymatic hydrolysis auxiliary agent. The method comprises the specific steps that: cellulose is dispersed in a buffering solution; the mixture of lignin sulfonate and straight-chain alcohol is added; 5-20 FPU / g of cellulase calculated according to glucan content in cellulose is added; a reaction is allowed for 48-96h under a temperature of 45-60 DEG C, such that a saccharide compound hydrolysate is obtained. According to the invention, through the addition of the mixture of lignin sulfonate and straight-chain alcohol, cellulose enzymatic hydrolysis and saccharification yield can be improved by 15.1-24.6%.

The invention relates to a novel cellulose-based antibacterial material, which is mainly produced via the steps of: controlling reaction temperature, time, pH value and oxidization ratio of dialdehydecellulose in order to perform a reaction to the dialdehyde cellulose and lysine, and when the reaction is finished, performing centrifugal separation and drying and grinding the product. The antibacterial material has excellent antibacterial activity, and can reach 30 mg / ml in minimum inhibitory concentration (MIC) against Gram negative bacteria, such as Escherichia coli, and 7.5 mg / ml in MIC against Gram positive bacteria, such as staphylococcus aureus, with penicillin as a positive control and an LB liquid culture medium as a negative control; under special conditions, the antibacterial material can completely growth of bacteria. The antibacterial material has simple process and is free of toxic and side effect. The raw material, cellulose, has abundant sources and is environment friendly. The invention supplies a new idea for researching and developing novel antibacterial materials.

The invention relates to a single power converter system of a separately-excited high-gain switch reluctance machine. Each phase winding is provided with a switch tube and a diode, and the single power converter system is simple in structure and is convenient to control; with the introduction of a transformer, the function of high voltage gain and isolation are helped to be achieved; and except that working condition running of a power generation at two stages of excitation and power generation is simply completed by the power converter, the same control mode can be used as working condition control running of a motor, and the single power converter system is applicable to occasions of various small-power switch reluctance machines / motors.

The invention discloses a preparation method of novel renewable hydrogel with low bacterial adhesion and sterilization and regenerable functions and belongs to the technical field of hydrogel preparation. The preparation method specifically comprises steps as follows: 1) a UV polymerization reaction; 2) an esterification reaction; 3) an ATRP reaction; 4) a sliver-supporting reaction. The preparation method is simple and feasible, a polymerization method guarantees the effectiveness and controllability of the length of a functional polymer brush, and the long-time antibacterial effect is realized through slow release of silver ions. The product has a remarkable inhibition effect on escherichia coli and staphylococcus aureus; compared with an antibacterial product containing single components in the prior art, the product has greatly improved antibacterial efficiency. Besides, through the environmental responsibility of the functional polymer brush, shrinkage and extension of the polymerbrush due to the outside environment are changed, desorption of dead bacteria is further driven, and the regenerable antibacterial property of the hydrogel is realized.

The invention discloses a high-roughness reproducible high-friction coefficient wear-resistant coating and a preparing method thereof. 1) metal is used as a coating material, metal ceramic particles are used as a coated material, and the metal ceramic particles are coated with the metal to prepare a spraying powder raw material, wherein the metal as the coating material is the same as the metal used for the metal ceramic particles as the coated material or is similar with the metal used for the metal ceramic particles as the coated material in thermophysical characteristic; and 2) a heat spraying method is adopted to heat the spraying powder raw material prepared in the step 1) until the state that the metal as the coating material is completely melted or nearly completely melted is obtained, semi-molten particles with cores of the metal ceramic particles of the coated material not melted are formed, and the semi-molten particles collide a metal substrate to be sprayed and deposited onthe surface of the metal substrate to form a metal ceramic coating, namely the high-roughness reproducible high-friction coefficient wear-resistant coating. A new method is provided for preparing thehigh-performance long-life high-roughness reproducible metal-based wear-resistant coating.

The invention discloses a hybrid industrialized architectural structural system and a construction method thereof. The hybrid industrialized architectural structural system comprises a structural system, wherein the structural system is formed by connecting structural columns, structural beams, shear walls and floors; the structural columns are steel columns or concrete filled steel tube columns or steel tube reinforced concrete columns; at least one of the structural beams is a prefabricated variable-stiffness hybrid combination beam; at least one of the shear beams is a prefabricated shear wall; the prefabricated shear wall is connected into a frame structure formed by being enclosed by the structural columns and the prefabricated variable-stiffness hybrid combination beam; the prefabricated variable-stiffness hybrid combination beam comprises a steel skeleton and reinforced concrete blocks arranged on two sides of a web plate of the steel skeleton. By using the hybrid industrialized architectural structural system and the construction method thereof, the technical problems that a conventional cast-in-place concrete structure is poor in shock resistance performance and long in construction time and a conventional steel structure is poor in fire resistance are solved.