82results about How to "Adjust flexibility" patented technology

The invention discloses a mono-component varnish composition, which comprises at least a polymer having a hyper branched or dendritical structure; at least one type of hydroxyl acrylic resin or hydroxyl methacrylate resin; at least one type of organosilicon-modified acrylic resins; at least a crosslinking curing agent; at least an acid catalyst; at least a rheological control agent; at least an auxiliary agent and at least a solvent; and the mono-component varnish composition has the advantages of high scratch resistance and high weather resistance. The provided mono-component varnish composition can effectively increase the smoothness of the surface of a varnish composition film, and increases the rub resistance of the film; in addition, the introduction of the organosilicon-modified acrylic resin can further increase the weatherability of the varnish composition film.

The invention discloses a high-speed hot stamping gum used for holographic positioning electrochemical aluminium and the preparation method. The gum prepared through the formulation and the method of the invention can achieve good adhesive effect under the appropriate temperature and pressure, and the appropriate release coating is added, thus the holographic image information of the holographic electrochemical aluminium can be stripped and cemented on the surface of the scalded object at the high speed. The fragileness of the gum is moderate, therefore, the trimming performance of the holographic image is good in the hot stamping process, the gum is particularly applied to high-speed hot stamping on the surface of the sheet paper and the printing ink with which the density and the hardness are big, the surface energy is low, the surface wettability is poor, and the general coating liquor is difficult to be transferred and cemented on.

The invention provides a UV curing resin. The UV curing resin comprises the following raw materials: polycaprolactone glycol, a polyhydroxy monomer, hydroxypropyl polydimethylsiloxane, aliphatic diisocyanate, hydroxy-terminated acrylic ester, a catalyst and a polymerization inhibitor. The UV curing resin is aliphatic polyfunctional urethane acrylate, and the backbone structure of the resin contains an internal cross-linked structure formed by the polyhydroxy monomer and the aliphatic diisocyanate; as the aliphatic diisocyanate is used, the internal cross-linked structure can not enable a paint film to be fragile while improving the hardness of the paint film; through reaction between the hydroxypropyl polydimethylsiloxane and the aliphatic diisocyanate, a siloxane structure is introduced into the backbone of the UV curing resin, so that the UV curing resin has excellent light transmittance. The invention also discloses a preparation method for the UV curing resin, as well as a UV curing coating prepared from the UV curing resin, and the UV curing coating also has high abrasion resistance and excellent light transmittance.

The invention relates to acrylic acid modified polysiloxane resin and application thereof to a self-stratifying coating. The resin contains two kinds of groups for a cross-linking reaction, consequently different curing agents can be selected for curing of the coating prepared from the resin according to performance requirements, and a silicon part and other parts in the resin have special compatibility. The self-stratifying coating containing the acrylic acid modified polysiloxane resin contains a component A and a component B, wherein the component A is prepared from 15-70 wt% of the acrylic acid modified polysiloxane resin, 5-40 wt% of pigment filler, 0.5-2 wt% of auxiliary and 10-45 wt% of solvent, and a coupling agent containing isocyanate groups or aminosilane can be selected for the component B according to coating performance requirements. Compared with an existing acrylic acid modified polysiloxane coating, the coating is high in surface drying speed, can achieve gradient self-stratifying in the film forming process, and has good corrosion resistance and weather resistance on the condition that the organosilicone content is extremely low.

The invention relates to a preparation method of an elastically-crosslinked water-fast polyurethane modified polyacrylate emulsion and a product prepared by using the preparation method. The preparation method comprises the following steps: preparing for raw materials including a polyurethane monomer, a polyacrylate monomer, a functional monomer, an adjuvant and water; carrying out bulk polymerization; carrying out blocking; carrying out emulsion; and carrying out emulsion polymerization to prepare the elastically-crosslinked water-fast polyurethane modified polyacrylate emulsion. A polyurethane long-chain crosslink with a certain density, a moderate amount of crosslinked active groups and a water-repellent side long chain are introduced into a molecule of the material, so that various textile coatings or pigment printing glue films have excellent water fastness, good color fastness, remarkable flexibility as well as certain water repellency and antifouling ability, so that the elastically-crosslinked water-fast polyurethane modified polyacrylate emulsion has a good market prospect; and the product is safe, environment-friendly and convenient to use and can be used for the field ofvarious substrate processing such as coating, textile adhesion, pigment printing and pigment dyeing.

The invention relates to siloxane bridged trapezoidal polysiloxane. A main structural framework of the siloxane bridged trapezoidal polysiloxane is shown in formula I, wherein each substituent, m, x,y and z are as defined in the description and claims. The invention further discloses siloxane bridged trapezoidal polysiloxane random, block copolymers, and graft copolymers prepared by a siloxane bridged trapezoidal polysiloxane concoction. The siloxane bridged trapezoidal polysiloxane retains temperature resistance and flexibility of siloxane bridged trapezoidal polysiloxane fragments and goodcompatibility of general-purpose macromolecules, and degree of polymerization, mechanical strength, temperature resistance, optical properties and the like can be adjusted according to different compositions and proportions of copolymerized fragments, composition and proportion of end-capping agents, different structures of grafting units and the like. The formula is shown in the description.

The invention provides an ultraviolet light curing composition used for 3D printing, and a preparation method and an application thereof. The composition comprises an ultraviolet light curing prepolymer as shown in a formula (I) which is described in the specification, wherein the usage amount of the ultraviolet light curing prepolymer accounts for 55 wt% or more of the total weight of the composition. The ultraviolet light curing composition provided by the invention has the advantages of high tensile strength, etc., and can be used as a 3D printing material and a light curing material; curedresin prepared from the composition provided by the invention has the advantages of low shrinkage rate, high-temperature resistance, fast curing speed, etc., and is applicable to curing through a manner of 3D printing.

The invention relates to a method for preparing modified polytrimethylene terephthalate. In esterification reaction, one or combination of more of straight-chain aliphatic dicarboxylic acid with the carbon number between 3 and 20, 1,4-cyclohexanedicarboxylic acid, straight-chain aliphatic diol with the carbon number between 4 and 20 and 1,4-cyclohexanedimethanol is taken as a third monomer; the use amount of the third monomer is 0.3 to 6.0 weight percent of the total weight of initial reaction raw materials; polyethylene glycol with the average molecular weight between 200 and 2,000, serving as a flexible chain segment, is added into the polymerization reaction, and the addition amount is 0.5 to 8.5 weight percent of the total weight of the initial reaction raw materials; and the modified polytrimethylene terephthalate is produced by the conventional polyester production process. The modified polyester chips prepared by the method have good spinnability and excellent crystallization capacity; in the spinning process, fibers are fully crystallized, so the stable crystallization rate is formed; when the fibers are heated and subjected to external stress, the crystallization rate of the stress parts of the fibers is stable, and the defect that PTT polyester fiber fabrics are susceptible to external force and high temperature loss can be effectively improved.

The invention provides an aerogel heat insulation sheet which comprises an aerogel layer and a glue layer coating the outer surface of the aerogel layer; the glue layer covers the whole outer surfaceof the aerogel layer and is prepared from the following raw material components in part by weight: 0.03-1.5 parts of carbon powder, 0.5-5 parts of glass fiber powder, 0.2-5 parts of a flame retardantand 4-35 parts of a structural adhesive. The aerogel heat insulation sheet provided by the invention has the benefits that as the glue layer covers the whole outer surface of the aerogel layer, powderon the surface of an aerogel material is fixed in the glue layer, so that the problem of falling-off of the powder on the surface of the aerogel material is solved. Therefore, the aerogel heat insulation sheet can be applied to the automobile field, and is used as a heat insulation material for an automobile battery, and the problems of pollution and damage to an automobile product due to powderdrop of the aerogel material are effectively solved.

The invention relates to a quantum-dot strengthened composite light conversion film and a preparation method thereof, belonging to the field of photoelectric-function high-polymer technical materials. The film material with adjustable flexibility, transparency, luminescent intensity and color is composed of nano cellulose, a plasticizer and water-soluble quantum dots, wherein polyalcohol is used as the plasticizer of the nano cellulose for regulating the flexibility of the film, and the water-soluble quantum dots can account for 0.1-50 wt% of the composite material; and the film has adjustable transparency, flexibility and luminescent color, controllable thickness and cuttable area. The thickness and area of the film material can be scaled up according to application demands. The quantum-dot strengthened composite light conversion film prepared by the method has the advantages of high composite material doping amount, high transparency and high flexibility, and is cuttable and flexible; the luminescent color and luminescent intensity can be adjusted according to the type, size and proportioning of the quantum dots; and the addition of the glycerol can further optimize the flexibility of the film material.

The invention discloses a high-solid and low-viscosity organosilicone-modified acrylate resin, the structure of which is shown as the general formula I, wherein the definitions of substituted groups in the formula are shown in a specification. The high-solid and low-viscosity organosilicone-modified acrylate resin can endow a varnish film with high rubbing resistance and smooth performances.

A display device has a display area. The display area comprises a first area and a second area. The display device comprises a substrate, a plurality of data lines and a plurality of scanning lines. The substrate includes a plurality of first pixels and a plurality of second pixels. The first pixels are arranged in the first area and are annularly arranged. The second pixels are disposed in the second area. In addition, the display device is also provided.

The invention provides a road construction device capable of conducting dust fall. The road construction device is used for conducting grinding on the local protrusion on the construction road surface in the road construction process. The road construction device comprises an external shell (8), a motor (9) and a grinding head drive rod component (6) driven by the motor (9). The motor (9) is in power connection with a splined hole in a drive sleeve portion (61) of the grinding head drive rod component (6) in the axial direction in a slidable mode through a spline rod (91) fixedly connected with the motor (9). The drive sleeve portion (61) of the grinding head drive rod component (6) is fixedly connected with a grinding head mounting rod portion (62) of the grinding head drive rod component (6) through gradually contractile connection portions (612).

The invention provides water-based transparent polyurethane, water-based UV curing gloss oil, water-based UV curing ink and a preparation method thereof. The water-based transparent polyurethane is prepared from the following raw materials in parts by weight: 30-50 parts of isophorone or diisopropylketone, 5-20 parts of diisocyanate, 80-120 parts of polyester polyol, 1-3 parts of 2, 2-dimethylolpropionic acid, 10-30 parts of neopentyl glycol and 5-30 parts of C7-C22 alkanediol. Isophorone and diisopropylketone not only can be used as reaction monomers, but also can be used as solvents, have high dissolvability to diisocyanate, and are miscible with water, so that the generated prepolymer can form a uniform dispersion in water. 2, 2-dimethylolpropionic acid not only can be used as a chain extender, but also can enable polyurethane to obtain a self-emulsifying property, so that the self-emulsifying water-based polyurethane with excellent stability can be prepared in an internal emulsification manner. Under the action of isophorone, diisopropylketone, neopentyl glycol and alkanediol, a polyurethane aqueous dispersion which is uniformly dispersed can be generated, and the polyurethaneaqueous dispersion has high refractive index and aqueous solution stability.

The invention discloses a preparation method of epoxy resin for a high-hardness and low-temperature curing type powder coating. The epoxy resin is prepared from the following raw materials in parts bymole: 3-5 parts of melamine, 30-40 parts of formaldehyde, 3-6 parts of hexafluorobutanol, 15-25 parts of cyclohexane, 2-4 parts of phosphorus pentoxide, 6-11 parts of glutaric anhydride, 2-4 parts ofpyromellitic dianhydride, 5-10 parts of pentaerythritol tetraglycidyl ether, a catalyst and a pH regulator. The obtained epoxy resin does not contain halogen elements, contains nitrogen, phosphine and other environment-friendly flame-retardant elements, has good flame retardancy, has high cross-linking density with a film obtained after low-temperature curing of a dicyandiamide curing agent, haspencil hardness of 3H or above, and has excellent water boiling resistance, neutral salt mist resistance and flame retardancy.

The invention relates to 3D printing materials and discloses a 3D printing light-cured composition based on acrylic resins. The 3D printing light-cured composition comprises the following components in percentage by weight: 15-40% of aliphatic polyurethane acrylate, 20-25% of N-acryloyl morpholine, 20-25% of propyl oxynonylphenol acrylate, 15-25% of ethoxyethoxyethyl acrylate, 2-4% of an initiatorTPO, 0.6-1.5% of a KH570 silane coupling agent and 0.01-0.2% of a silane leveling agent. The composition disclosed by the invention is odorless, excellent in toughness, easy to demold and low in price.

Intelligent road construction equipment is used for grinding local bulges on construction road surface during road construction, and comprises an external housing (8), a motor (9) and a grinding head drive lever member (6) driven by the motor (9), the motor (9) is in axial slidable power connection with a spline hole in a drive sleeve portion (61) of the grinding head drive lever member (6) by a fixedly connected spline rod (91), and the drive sleeve portion (61) of the grinding head drive lever member (6) is fixedly connected with a grinding head mounting rod portion (62) of the grinding head drive lever member (6) by a gradual contractile connecting portion (612).

The invention discloses a polymer-based composite material sensing civil engineering structure super-deformation, and a preparation method and an application thereof. The polymer-based composite material is prepared from the raw materials of polyacrylamide, montmorillonite, water, methyl cellulose, polyvinyl pyrrolidone and a carbon-based material. With the adhesiveness of polyacrylamide after absorbing water, montmorillonite is added in polyacrylamide, such that a polymer-based material with adjustable flexibility and large deformation is prepared; and the carbon-based material is doped in the polymer substrate, such that the composite material with good conductivity is prepared. According to the strain-sensing composite material provided by the invention, polymer is adopted as a substrate, and the material is flexible, such that the material can sense the super-deformation of a civil engineering structure. The raw materials needed in the preparation are easy to obtain. The preparation method and needed instrument are easy to realize.

The invention discloses a high-precision road construction device which is used for polishing local convex parts on a construction pavement during road construction. The device comprises an external casing (8), a motor (9) and a polishing head driving rod component (6) driven by the motor (9), wherein the motor (9) is in axial slidable power connection with a spline hole in a driving sleeve part (61) of the polishing head driving rod component (6) through a spline rod (91) fixedly connected with the motor; the driving sleeve part (61) of the polishing head driving rod component (6) is fixedly connected with a polishing head mounting rod part (62) of the polishing head driving rod component (6) through a gradual contraction connecting part (612).

An intelligent road construction device with good heat radiation is used for polishing local protrusions on a construction road surface during road construction and comprises an outer shell (8), a motor (9) and a polishing head drive rod component (6) driven by the motor (9). The motor (9) is in axial and slidable power connection with a spline hole in a drive sleeve portion (61) of the polishing head drive rod component (6) through a fixedly-connected spline rod (91). The drive sleeve portion (61) of the polishing head drive rod component (6) is fixedly connected with a polishing head mounting rod portion (62) of the polishing head drive rod component (6) through a gradual reducing connecting portion (612).

A dustproof road construction device is used for polishing local projections on a constructed pavement during road construction. The dustproof road construction device includes an outer shell (8), a motor (9) and a polishing head driving rod part (6) driven thereby. The motor (9) is connected to a spline hole in a driving sleeve part (61) of the polishing head driving rod part (6) through a fixedly-connected spline rod (91) in an axial-slidably power connection manner. The driving sleeve part (61) of the polishing head driving rod part (6) is fixedly connected to a polishing head mounting rod part (62) of the polishing head driving rod part (6) through a gradually-shrunk connection part (612).

The invention discloses water-base UV base oil, being prepared from the following components in weight percentage: 50 to 70 percent of waterborne acrylic emulsion, 0 to 30 percent of alkali soluble resin solution with 35 percent of mass percent concentration, 10 to 20 percent of water-base resin with active double bonds, 0 to 2 percent of coalescing agent, 0.1 to 0.5 percent of defoamer, 0.1 to 1.5 percent of leveling wetting agent, and 0 to 30 percent of deionized water. The invention also provides a preparation method of the water-based UV base oil, and mainly adopts a stepwise material addition method for preparation. The active double bonds in the water-based UV base oil obtained by adopting the preparation method, involves the free radical polymerization initiated by UV-light (ultraviolet light) in a UV surface oil light curing process, so that a riveting structure is formed between the base oil and the UV surface oil, the adhesive force of the UV surface oil on the base oil is enhanced, and then the adhesive force of UV light oil on printing paper is enhanced.

The invention relates to the technical field of preparation of a water-based matte surface layer material, in particular to a water-based matte surface layer material and a preparation method thereof.The surface layer material is prepared from, by weight, 30-60 parts of water-based epoxy organosilicone modification acrylic resin liquid, 5-20 parts of water-based amino resin, 0.5-1 part of a water-based defoaming agent, 0.05-1 part of a water-based flatting agent, 0.5-8 parts of matting powder, 0.2-3 parts of wax powder, 2-6 parts of a water-based wetting agent, 0.5-5 parts of a neutralizer and the balance water.The performance indexes of the coating can totally reach or even partially exceed indexes of an oil-based coating.Meanwhile, the paint film is good in touch, good in skid resistance and free of environment pollution basically.

The invention discloses thermocuring quantum dot ink and a preparation method and a use method thereof. The thermocuring quantum dot ink comprises the following components in parts by weight: 1-30 parts of quantum dots, 20-50 parts of epoxy resin, 30-75 parts of a solvent, 1-3 parts of a dispersing agent, 0.1-2 parts of an antifoaming agent, 0.5-2 parts of a leveling agent and 1-5 parts of a glassadhesion promoter. The thermocuring quantum dot photochromic conversion film ink provided by the invention can be printed on a glass substrate, is mixed with a flexible curing agent, does not blister, has a good leveling effect and uniform quantum dot dispersion, and is suitable for an intaglio pad printing process and a silk-screen printing process.

Environmentally friendly road construction equipment is used for grinding local bulges on construction road surface during road construction, and comprises an external housing (8), a motor (9) and a grinding head drive lever member (6) driven by the motor (9), the motor (9) is in axial slidable power connection with a spline hole in a drive sleeve portion (61) of the grinding head drive lever member (6) by a fixedly connected spline rod (91), and the drive sleeve portion (61) of the grinding head drive lever member (6) is fixedly connected with a grinding head mounting rod portion (62) of the grinding head drive lever member (6) by a gradual contractile connecting portion (612).

The invention provides a road construction device capable of conducting dust fall. The road construction device is used for conducting grinding on the local protrusion on the construction road surface in the road construction process. The road construction device comprises an external shell (8), a motor (9) and a grinding head drive rod component (6) driven by the motor (9). The motor (9) is in power connection with a splined hole in a drive sleeve portion (61) of the grinding head drive rod component (6) in the axial direction in a slidable mode through a spline rod (91) fixedly connected with the motor (9). The drive sleeve portion (61) of the grinding head drive rod component (6) is fixedly connected with a grinding head mounting rod portion (62) of the grinding head drive rod component (6) through gradually contractile connection portions (612).