46 results about "Butanediol diacrylate" patented technology

The invention discloses a preparation method of a high-impact-resistant waterproof type epoxy resin toughening agent, and belongs to the technical field of preparation of toughening agents. The methoddisclosed by the invention is characterized in that butyl acrylate, 1,4-butanediol diacrylate, allyl methacrylate, distilled water, sodium dodecyl benzene sulfonate and potassium persulfate are subjected to heating reaction to prepare a home-made seed emulsion, and the home-made seed emulsion is mixed with butyl acrylate, methyl methacrylate, a cross-linking agent, an emulsifying agent, an initiating agent and a grafting agent together to prepare a core layer emulsion and a shell layer emulsion; divinyl benzene is an oil-soluble initiating agent and mainly swells in emulsion particles, and only a small amount of divinyl benzene is dissolved in a water phase, thereby improving the impact-resistance strength of the toughening agent; and nano silicon dioxide is added to a polyacrylate emulsion with better water resistance and physical and mechanical properties to enable the polymer to have high water absorbing capacity, and resin can be cured in a humid environment or even underwater andcan keep good water resistance, thereby improving the water resistance of the toughening agent.

The invention relates to a production technology and equipment for preparing 4-hydroxybutyl acrylate through extraction separation. The production technology comprises the steps: reacting 1,4-butanediol with acrylic acid under the existence of a catalyst, a polymerization inhibitor and a solvent to obtain main products of 4-hydroxybutyl acrylate and 1,4-butanediol diacrylate; choosing cyclohexaneto extract 1,4-butanediol diacrylate from a water phase at first, then choosing dichloromethane to extract 4-hydroxybutyl acrylate from the water phase and finally obtaining a finished product throughreduced pressure distillation. The production technology disclosed by the invention has the beneficial effects: a set of technological process is designed for the characteristics of physical properties, contents and the like of all the ingredients of a reaction workshop section and a separation workshop section, the final product 4-hydroxybutyl acrylate is obtained through the technological process, and the purity can completely meet an industrial production requirement. The production technology disclosed by the invention has the advantages of simple technology, low required energy consumption and low production cost, and the prepared product has the advantages of high purity, high product yield and good quality.

The present invention discloses a biodegradable waterproof polycarbonate composite material and a preparation method therefor. The biodegradable waterproof polycarbonate composite material is prepared by using the following components in parts by weight: 80-90 parts of polycarbonate, 20-30 parts of polyvinyl acetate resin, 11-16 parts of hydroxypropyl methylcellulose, 8-15 parts of polyvinyl butyral, 3-7 parts of zirconium fluoride, 3-6 parts of 1,4-butanediol diacrylate, 2-5 parts of ethylene tetrafluoroethylene copolymer, 1-2 parts of 4,4'-bi (2, 2-epoxy propoxylated) octafluorobiphenyl, 1-2 parts of dibutyltin dilaurate, and 0.2-1 parts of polydimethyl amino thiazole. The present invention also provides a preparation method for the biodegradable waterproof polycarbonate composite material.

The invention discloses a three-layer composite release film for a 3D printing process and a preparation method of the three-layer composite release film. The three-layer composite release film comprises a layer B and layers A arranged on the two sides of the layer B, the component of the layer A is poly (4-methyl-1-pentene); the component of the layer B is long-chain branch modified poly (4-methyl-1-pentene); the ratio of the total mass of the layer A to the mass of the layer B is 10: (1-5); the preparation method of the long-chain branch modified poly (4-methyl-1-pentene) comprises the following steps: mixing poly (4-methyl-1-pentene), a grafting monomer and an initiator, and carrying out melt extrusion to obtain the long-chain branch modified poly (4-methyl-1-pentene), and the grafting monomer comprises 1, 4-butanediol diacrylate and maleic anhydride. According to the invention, the poly (4-methyl-1-pentene) and the long-chain-chain modified poly (4-methyl-1-pentene) are respectively used as the surface layer and the middle layer, so that the prepared release film has excellent release property under the condition that a release agent is not added, and the film is high in light transmittance and good in mechanical property and can meet the use requirements in the 3D printing process.

The invention provides poly furan-2,5-dicarboxylic acid-2,3-butanediol diacrylate and a preparation method thereof. The method comprises the following steps of reacting furan-2,5-dicarboxylic acid with 2,3-butanediol under the action of a tetravalent titanium compound catalyst, performing condensation polymerization on obtained intermediate products under the pressure of 10Pa-70Pa to obtain the product poly furan-2,5-dicarboxylic acid-2,3-butanediol diacrylate, wherein the tetravalent titanium compound catalyst comprises organic modifier-modified mesoporous silica and a tetravalent titanium compound which is loaded onto the mesoporous silica, wherein an organic modifier is a titanate coupling agent or a silane coupling agent. The product has at least one of first repeating unit shown by a formula (I), a second repeating unit shown by a formula (II) and a third repeating unit shown by a formula (III), and the intrinsic viscosity of the product is not lower than 0.5 deciliter per gram (0.5dL / g). Moreover, the preparation method is environmentally friendly and simple.

The invention provides poly furan-2,5-dicarboxylic acid-2,3-butanediol diacrylate and a preparation method thereof. The method comprises the following steps of reacting furan-2,5-dicarboxylic acid with 2,3-butanediol under the action of a tetravalent titanium compound catalyst, performing condensation polymerization on obtained intermediate products under the pressure of 10Pa-70Pa to obtain the product poly furan-2,5-dicarboxylic acid-2,3-butanediol diacrylate, wherein the tetravalent titanium compound catalyst comprises organic modifier-modified mesoporous silica and a tetravalent titanium compound which is loaded onto the mesoporous silica, wherein an organic modifier is a titanate coupling agent or a silane coupling agent. The product has at least one of first repeating unit shown by a formula (I), a second repeating unit shown by a formula (II) and a third repeating unit shown by a formula (III), and the intrinsic viscosity of the product is not lower than 0.5 deciliter per gram (0.5dL / g). Moreover, the preparation method is environmentally friendly and simple.

The invention discloses functional hyperbranched polyethylene and application thereof in the preparation of a high-stability flexible conductive / electro-thermal film. The functional hyperbranched polyethylene is obtained by catalyzing 1,4-butanediol diacrylate shown as a formula (I), a pyrene-containing monomer shown as a formula (II) and ethylene through a Pd-diimine catalyst according to a one-step chain transfer copolymerization mechanism. The invention provides an application of functional hyperbranched polyethylene in the preparation of a flexible conductive / electro-thermal film. The preparation method specifically comprises the following steps: (1) stripping graphite from the functional hyperbranched polyethylene by virtue of ultrasonic waves to obtain a graphene dispersion liquid; (2) painting the functional HBPE containing graphene dispersion liquid prepared in the step (1) on a flexible substrate; and (3) carrying out an ultraviolet curing treatment on a graphene layer containing filter membrane obtained in the step (2) to obtain the flexible conductive / electro-thermal film. The graphene dispersion liquid is obtained by utilizing the functional hyperbranched polyethylene,and the flexible conductive / electro-thermal film prepared from the graphene dispersion liquid has excellent stability.

The invention discloses a preparation method of ammonium dinitramide with a moisture-absorption-preventing coating layer. The preparation method comprises the following steps: mixing an energetic macromolecular prepolymer, 1,4-butanediol diacrylate and ammonium dinitramide particles in dichloromethane, conducting uniform stirring, performing standing for 25-45 minutes, and then conducting mixing with n-hexane heated to 55-65 DEG C to obtain a mixture; and subjecting the mixture to a reflux reaction for 5-6 h at a temperature of 65-68 DEG C so as to obtain cross-linked, cured and coated ammonium dinitramide particles, wherein a mass ratio of ammonium dinitramide to dichloromethane to the energetic macromolecular prepolymer to 1,4-butanediol diacrylate to n-hexane is 1: 30: 0.02: (0.01-0.0055): 40. The compatibility between the coating layer and ADN is good, the safety of an ADN coating process can be greatly improved, and the saturation moisture absorption rate of the ADN with the moisture-absorption-preventing coating layer is only 0.65% under the conditions that relative humidity is 50% and temperature is 35 DEG C.

The invention relates to high-adhesion pearized silver printing ink which comprises the following components in parts by weight: 50 parts of pearl powder, 35 parts of silver powder, 52 parts of hydroxy fluorosilicone resin, 20 parts of 1,4-butanediol diacrylate, 6 parts of diammonium citrate, 6 parts of butyl glycidyl ethe, 0.8 parts of octaphenyl polyoxyethyiene, 0.5 parts of antioxidant 1010 and 80 parts of mixed solvent. The environment-friendly printing ink adopts the mixed solvent of dimethyl carbonate and trimethylolpropane polyether with the molecular weight of 400-1000, is basically free of toxic chemicals such as benzene and methylbenzene, is very excellent in environment-friendly property, and has excellent dissolving and dispersing properties for resin and a pigment; good durability is endowed for the printing ink; very good printing quality is represented; the environment-friendly printing ink is suitable for silk-screen printing of the surfaces of glass and a PMMA (polymethyl methacrylate) substrate; and after the printing ink is dried, the printing ink is bright in color, stable in adhesivity, and good in oil resistance and alcohol resistance.