33results about How to "Achieve environmental friendliness" patented technology

The invention discloses inner column type umbrella-shaped expanding equipment and an expanding method thereof. The inner column type umbrella-shaped expanding equipment comprises an umbrella-shaped expanding device and a plurality of longitudinally-distributed inner columns; and the inner columns are pressure-bearing columns I or telescopic pressure-bearing columns or telescopic pull rods; when the number of the inner column is one, the inner column is located on the central axis of the umbrella-shaped folding rod set; when the number of the inner columns is larger than or equal to two, the multiple inner columns are distributed around the central axis of the umbrella-shaped expanding body device; the inner columns are combined or independently arranged; the combined arrangement of the inner columns comprises combined arrangement of a tie bar disc and the front end of the inner column and / or combined arrangement of a tie bar penetrating disc and the rear end of the inner column; when the inner columns are the pressure-bearing columns I, one ends of the pressure-bearing columns I are hinged to the front ends or the rear ends of all the folding rods, and the other ends of the pressure-bearing columns I are located between the front end and the rear end of the umbrella-shaped folding rod set; and when the inner columns are the telescopic pressure-bearing columns or the telescopicpull rods, the two ends of the telescopic pressure-bearing columns or the telescopic pull rods are fixedly connected with the front end and the rear end of the umbrella-shaped folding rod set respectively. The inner column type umbrella-shaped expanding equipment and the expanding method thereof are used for achieving the purpose of optimizing the pre-collection type three-hinge pressure-bearing structure.

The invention discloses a natural polymer modified coated controlled release fertilizer and a preparation method thereof. The fertilizer comprises a fertilizer core layer and a coated layer positioned on the outside of the fertilizer core, wherein the material of the fertilizer core layer is formed from fertilizer particles, and the coated layer which is one layer or two layers and is a two layered coated controlled release fertilizer is a cellulose layer and a hydrophobic film. The coated controlled release fertilizer provided by the invention has a good controlled release performance, and simultaneously the film material has biodegradability, so an environmental problem brought by the controlled release film material is solved. A natural product cellulose is adopted to get rid of the dependence of the coated material on a petrochemical resource, so the sustainable development of the coated material is realized. The coated controlled release fertilizer, which has the advantages of improvement of the fertilizer utilization rate, environment pollution reduction, sustainable development, and the like, has a wide application prospect.

The invention discloses an environment-friendly water-based nail polish and a preparation method thereof. The nail polish includes aqueous polyurethane emulsion, defoamer, accelerator, thickener and pigment. The water-based polyurethane emulsion is made of the following components by weight: 4-18 parts of inert vinyl monomer, 9.48-13.35 parts of polymer polyol, 8.5-14 parts of diisocyanate compound, 0.8-2 parts of chain extender, 1.66-1 2.95 parts of hydrophilic chain extender, 0.15-0.3 parts of cross-linking agent and 0-0.095 parts of catalyst, 0.5-2 parts of vinyl monomer containing active hydrogen, 1.3-3.2 parts of volatile base, 60-100 parts of water and The initiator solution is prepared by dissolving 0.2-0.8 parts of initiator in 10-40 parts of water. The preparation process of the water-based nail polish of the present invention is simple, environment-friendly and pollution-free, and embodies the performances of being green, environment-friendly, non-toxic and tasteless.

The invention discloses an aqueous acrylate electrostatic flocking binder and a preparation method thereof, belonging to the field of the preparation of macromolecular binders. The environment-friendly and excellent-performance aqueous acrylate electrostatic flocking binder is prepared by taking a soft monomer, a hard monomer, a functional monomer, a crosslinking monomer, epoxy resin, an initiator, an emulsifier, a buffering agent, a pH regulator and deionized water as raw materials, adopting an alkylphenol ethoxylates (APEO)-excluding emulsifier to carry out prophase pre-emulsification, taking acrylic monomers and the epoxy resin as main raw materials, and using a hemicontinuous emulsion polymerization manner that monomers and the initiator are dual-dropwise added, wherein the monomers are monomers with functional groups which are not hydroxylmethyl, the functional groups can crosslink with fiber only during the baking process of an electrostatic flocking fabric, and free formaldehyde can be produced. The aqueous acrylate electrostatic flocking binder has the advantages of simplicity in process, higher conversion ratio and stable performance, the flocking fabric made from the binder complies with the standards of no formaldehyde, APEO excluding, abrasion resistance and soft hand feeling, and the service requirements of ecologic clothing fabrics can be effectively met.

The invention discloses a chambering and pile sinking construction method for a static pile driver. The method comprises the steps that the static pile driver carries out primary pile pressing, drill pile holding and mounting are carried out, chambering is carried out, and the static pile driver carries out final pile pressing. The chambering and pile sinking construction method for the static pile driver solves the problem that pile sinking is difficult in a sand layer, a hard soil layer, a differentiation layer and other soil layers where piles cannot be pressed easily. According to the method, chambering is carried out first, then pile sinking is carried out, and the method has the advantages of being small in noise, small in additional weight, little in squeezed soil, simple in operation and simple and reliable in structure.

The invention discloses VOC (volatile organic compound)-free high-solid-content water-borne epoxy PU (polyurethane) primer and a preparation method thereof. A vinyl monomer mixture is used as a dispersion phase, polymer polyol and a polyisocyanate compound are polymerized with trimethylolpropane serving as a self-crosslinking monomer under the action of a carboxyl and sulfonyl mixed hydrophilic chain extender, PU prepolymers capped with the vinyl monomers are obtained through end capping by vinyl monomers containing active hydrogen, after neutralization by an alkaline salt-forming agent, a PU micro-emulsion is obtained through dispersion with water, the polymerization of the vinyl monomers is further triggered under the action of a water-soluble initiator, meanwhile, epoxy functional groups are introduced into the polymer, and the epoxy modified PU-polyacrylate micro-emulsion which is free of VOCs and high in solid content is obtained with an in-situ emulsion polymerization method. Compared with traditional PU primer, the water-borne PU primer is lower in cost and high in curing speed and has excellent adhesive force, alkali resistance, wear resistance, weather resistance and the like.

The invention discloses a preparation method for a degradable plastic composite film with an oxygen separation performance. In the preparation method, degradable plastic master batch PBM mature in the present market, Pullulan polysaccharide and film-level LDPE are employed as raw material with addition of anti-oxidants and ultraviolet ray absorbers, tannic acid is employed for modifying Pullulan polysaccharide, further the plastic film three-layer co-extrusion film blowing technology is employed, and a three-layer plastic composite film with good oxygen separation performance, degradability and mechanical properties is prepared. The inner layer, the middle layer and the outer layer of the composite film are LDPE / PBM / Pullulan, PBM / Pullulan and LDPE / PBM / Pullulan respectively. The composite film can decompose automatically under action of oxygen enrichment and microbes, a wasted film can be degraded and digested completely by microbes in nature, the oxygen separation performance of the composite film can be raised by 70%-80% compared with the oxygen separation performance of an LDPE film with the same thickness, and the mechanical properties of the composite film are almost the same as mechanical properties of an LDPE film with the same thickness. The composite film is advantaged by simple production technology, high production efficiency and easy industrial enforcement.

The invention discloses a degradable three-layer co-extrusion plastic composite film with an oxygen separation performance. Degradable plastic master batch PBM mature in the present market, Pullulan polysaccharide and film-level LDPE are employed as raw material with addition of anti-oxidants and ultraviolet ray absorbers, tannic acid is employed for modifying Pullulan polysaccharide, further the plastic film three-layer co-extrusion film blowing technology is employed, and a three-layer plastic composite film with good oxygen separation performance, degradability and mechanical properties is prepared. The inner layer, the middle layer and the outer layer of the composite film are LDPE / PBM / Pullulan, PBM / Pullulan and LDPE / PBM / Pullulan respectively. The composite film can decompose automatically under action of oxygen enrichment and microbes, a wasted film can be degraded and digested completely by microbes in nature, the oxygen separation performance of the composite film can be raised by 70%-80% compared with the oxygen separation performance of an LDPE film with the same thickness, and the mechanical properties of the composite film are almost the same as mechanical properties of an LDPE film with the same thickness. The composite film is advantaged by simple production technology, high production efficiency and easy industrial enforcement.