63results about How to "The production process is environmentally friendly" patented technology

The invention discloses a preparation method of organopolysiloxane resin. The preparation method includes the steps of (1), taking alkoxyorganosilane, an end-capping reagent and an acidic compound as preparation raw materials; (2), feeding the preparation raw materials with uniform stirring, wherein the feeding molar ratio of the end-capping reagent to the alkoxyorganosilane to the acidic compound is (0-40):1:(0.2-5); (3), adjusting the temperature at 40-150 DEG C at which condensation polymerization reaction is conducted for 2-20 hours; (4), terminating the condensation polymerization reaction, adjusting a reaction mixture to be neutral, and purifying a reaction product so as to obtain the organopolysiloxane resin. The preparation method of the organopolysiloxane resin has the advantages of environmental protection and no pollution during production, low energy consumption, short period, high product yield and the like and is more excellent in performance.

The invention provides a manufacturing method for a honeycomb structure made of a composite material. The manufacturing method comprises the following steps of: step 1, soaking fiber cloth with a resin material to prepare prepreg; step 2, performing mould pressing on the prepreg obtained in step 1 to form corrugated sheets with needed shapes; and step 3, stacking and jointing the corrugated sheets obtained in step 2 to form the honeycomb structure made of the composite material. The invention further provides equipment used for manufacturing the honeycomb structure made of the composite material. According to the manufacturing method for the honeycomb structure made of the composite material and the equipment used for manufacturing the honeycomb structure made of the composite material, the fiber cloth is sequentially soaked with resin and cured by the equipment, the resin adopts thermosetting resin or thermoplastic resin, viscidity of the resin can be reduced by a heating mode, and the resin is changed into a flowable state and is conveniently soaked onto the fiber cloth. In a production process, a solvent does not need to dilute, so that the pollution problem due to absence of the solvent is avoided, and therefore, the production process is environmentally friendly.

The invention discloses a near-field radio frequency identification (RFID) reader plane opening dual-ring antenna for an ultra high frequency (UHF) band. The antenna is in a plane structure and comprises an antenna radiating unit, a dielectric substrate and a matching patch, wherein the antenna radiating unit is attached to one surface of the dielectric substrate and is a radiating body of the antenna, and the matching patch is attached to the other surface of the dielectric substrate and is a ground terminal of the antenna. The antenna is simple in structure and easy to produce. Frequency points and bandwidths of resonance frequency of the antenna can be changed within broad radio-wave spectrum through the adjustment of antenna structural parameters. The antenna can meet RFID system radio-wave spectrum which is regulated by different nations and is applied to near-field mobile terminal RFID application such as mobile payment and article anti-faking and tracing.

The invention relates to the field of feather manufacturing and provides a composite leather and a manufacturing method thereof, which is used for solving the problem of increasing leather permeability and strength. The composite leather and the manufacturing method thereof include the following steps: (1) preparing a base cloth, using inorganic hybrid liquid to impregnate the base cloth, rollingliquid and drying;(2) preparing slurry, adding 5-8 parts of foaming agent to 40-80 parts of waterborne polyurethane, evenly mixing and obtaining waterborne polyurethane slurry;(3) scratching the slurry, scratching the waterborne polyurethane slurry on the base cloth, drying and cooling, then obtaining waterborne polyurethane leather bayes;(4) processing surface, conducting surface-finishing processing on the waterborne polyurethane leather bayes by using finishing agent, and obtaining the composite leather. The base cloth impregnated by the inorganic hybrid liquid can effectively prevent the waterborne polyurethane slurry from permeating into the base cloth, and the leather with surface processing has good permeability and feel.

The invention discloses a method for recycling a coproduct hydrochloric acid in an ADC (azodicarbonamide) foaming agent preparation process. The method comprises the following steps: S1. pretreatment of crude hydrazine hydrate; S2. pretreatment of coproduct hydrochloric acid; S3. neutralizing treatment of primary hydrazine hydrate solution; S4. desalting treatment of secondary hydrazine hydrate solution; S5. preparation of biurea; and S6. preparation of ADC foaming agent. The coproduct hydrochloric acid produced in the step S6 is recycled, and treated by the step S2 to form hydrogen chloride gas; and the hydrogen chloride gas is introduced into the hydrazine hydrate solution in the step S3 to remove abundant sodium carbonate in the hydrazine hydrate solution, thereby implementing the cyclic utilization on the coproduct hydrochloric acid. The method solves the problem of the disposition of the coproduct hydrochloric acid, and avoids the environmental pollution caused by the hydrochloric acid. The sodium carbonate in the hydrazine hydrate solution is treated, and the formed main waste sodium chloride can be discharged to the salt field, so that the ADC foaming agent preparation process is more environment-friendly. The hydrogen chloride treatment technique is simple, and has the advantages of low energy consumption and obvious economic benefits.

The invention discloses a preparation method for a cellulose-polyvinyl alcohol degradable composite film. The preparation method comprises the following steps: A, preparation of a cellulose film: dissolving, film preparation, water washing and plasticizing; B, preparation of a polyvinyl alcohol reinforcing solution; and C, compounding of the cellulose membrane and polyvinyl alcohol. The preparation method provided by the invention has the characteristics of simple process and green and environmentally-friendly preparation process, and does not pollute the cellulose solvent so as to realize recycling. The invention also provides an antibacterial reinforced preparation method of the cellulose composite membrane. The polymer ionic liquid antibacterial agent can be compounded with the polyvinyl alcohol reinforcing liquid to form a compound film-forming reinforcing liquid with good film-forming property and long-term antibacterial property, and the compound film-forming reinforcing liquid is prepared on the film material base layer through a dip-coating method to form a composite layer, so the mechanical property and the antibacterial property of the film material can be improved.

The invention provides a hydrogenation catalyst. The hydrogenation catalyst is prepared from the following elements: 70-95wt% of Ni, 1-10wt% of Cu, 3-20wt% of Al and 0.1-6wt% of modified metal elementM, wherein the modified metal element M is selected from one or more of Ca, La, Mo, Ti, Fe and Co. Compared with the conventional raney-nickel catalyst, the hydrogenation catalyst prepared by adopting a preparation method has the beneficial effects that the conversion rate of tetrahydrophthalic anhydride and the selectivity of preparation of hexahydrophthalic anhydride are improved, the catalystpreparation condition is simple and convenient and the cost is low; in addition, the invention also provides a preparation method of the hydrogenation catalyst and application of the hydrogenation catalyst to production of the hexahydrophthalic anhydride by adopting the tetrahydrophthalic anhydride as a raw material.

The present invention discloses juicy peach flavored honey dry powder and a preparation method therefor. The juicy peach flavored honey dry powder is prepared from the raw materials: honey, juicy peaches, pleurotus eryngii, rye, exocarpium citrulli, burdock roots, corn flour, pouteria campechiana, purslane, purple cabbage, mangosteen, sweet potato rattan, lotus nut starch, yogurt and the like. The juicy peach flavored honey dry powder has the beneficial effects that the manufacturing process is environment-friendly; the sweet and fruity juicy peaches are combined with the sweet and delicious honey so that the honey dry powder is rich in nutrition, tastes soft and silky, and is easy to digest and absorb; and the honey dry powder has full-bodied and pleasant fruit flavor when being brewed, enabling people to feel sweet taste of the juicy peaches anytime and anywhere.

The invention provides matte silver foil. The matte silver foil is characterized by comprising a base paper layer, an adhesive layer coated on the base paper surface, a matte silver layer coated on the adhesive layer and a surface coating coated on the matte silver layer. The matte silver foil has the advantages that the adhesive layer is provided and coated with the matte silver layer, and accordingly, matte silver paste does not contact with the paper directly, and deformation of the paper can be avoided during drying; additionally, a BOPET (bi-axially oriented polyester film) used during production can be used repeatedly, so that a production process is more environment friendly.

The invention provides a preparation method of (S)-1,1-bis(4-fluorophenyl)-2-propanol. The preparation method is characterized in that a compound of a formula 2 is catalyzed in a reaction system by using ketoreductase to obtain a compound of a formula 1, that is the (S)-1,1-bis(4-fluorophenyl)-2-propanol, and the structural formula of the compound of the formula 2 is as shown in the specification.The invention also provides application of the ketoreductase, the compound of formula 2, 1,1-bis(4-fluorophenyl)-1,2-propylene glycol and/or ethyl lactate in the preparation of (S)-1,1-bis(4-fluorophenyl-2-propanol) or a picolinamide bactericide Florylpicoxamid. The preparation method, adopting an enzyme catalysis method to replace a chemical method in the prior art, has the advantages of reduction of the cost of used raw materials, environmentally friendly production process, and high stereoselectivity of the prepared product.

The invention provides an energy storage agent and a preparation method thereof. The energy storage agent comprises the following components by weight percent: 0.5-6% of a mixture of at least two of gelatinized starch, sodium alginate, sodium polyacrylate and carboxymethyl cellulose sodium, 0.2-4% of sodium chloride, 0.1-2% of borax, 0.2-3% of silicon dioxide, and the balance of water. The components used in the energy storage agent are non-toxic, odorless, energy-saving, environment-friendly, temperature-controllable, large in thermal capacity, long in heat preservation time, and wide in application range.