78 results about "Mercaptopropionic acid" patented technology

The invention discloses yellowing-resistant light-cured organic silicon resin and a preparation method thereof, and belongs to the technical field of light-cured resin. The resin is prepared from the following raw materials in parts by weight: 80 to 100 parts of vinyl-terminated polysiloxane, 15 to 25 parts of trimethylolpropane tri (3-mercaptopropionate), 1 to 3 parts of yellowing-resistant aid, 2 to 4 parts of photoinitiator and 0.5 to 1 part of flatting agent. When the resin is prepared, the raw materials are uniformly mixed under a dark condition, and the resin is obtained after vacuum defoaming. Wherein the yellowing-resistant auxiliary agent is a benzotriazole ultraviolet light absorber and is synthesized through a multi-step reaction, the structure simultaneously contains a benzotriazole ring and anthryl, and the benzotriazole ring and the anthryl have a synergistic effect so that ultraviolet rays can be efficiently absorbed and yellowing can be inhibited. The obtained resin has excellent yellowing resistance and high curing speed, and is suitable for the fields of coatings, printing ink, adhesives, electronic packaging and the like.

The invention provides a preparation method of a magnetic recoverable catalyst and a method for synthesizing 3-mercaptopropionic acid, and mainly solves the problem that a large amount of acid and alkali solutions are needed in the existing acrylonitrile-sodium hydrosulfide and acrylic acid-thiourea process routes. The thiohydracrylic acid synthesis catalyst is prepared. The use conditions of the catalyst are as follows: the temperature is 30-80 DEG C, the reaction pressure is 0.5-3 MPa, the mass ratio of the acrylic acid to the solvent is 0.1-5, and the mass ratio of the acrylic acid to the catalyst is 0.2-20. Compared with the prior art, the catalyst disclosed by the invention is used as a synthetic catalyst for preparing thiohydracrylic acid through reaction of acrylic acid and hydrogen sulfide, a solid catalyst and a liquid reaction system can be completely separated by adopting simple methods such as filtration, centrifugation or magnetic separation, and a complicated pickling step is not needed; and the problem that a homogeneous catalyst is difficult to rectify after salification in the use process is avoided.

The invention discloses a composition for relieving, repairing and promoting skin regeneration as well as a preparation method and application of the composition. The composition is prepared from the following raw materials in parts by weight: 0.1 to 5 parts of mandelic acid, 0.5 to 10 parts of a cynanchum atratum extract, 1 to 8 parts of a xylitol compound, 0.5 to 15 parts of regenerated silicon, 1 to 10 parts of a starfish regeneration repair factor, 0.3 to 1.5 parts of trimethylolpropane tri (3-mercaptopropionic acid) ester, 0.05 to 0.5 part of calcium chloride, 0.1 to 1 part of an additive, 0.2 to 2 parts of chitosan-polycaprolactone, 0.2 to 1 part of a pH regulator and 5 to 15 parts of a solvent. 0.3 to 0.8 part of an antioxidant and 3 to 10 parts of a humectant; the additive is hyaluronic acid or formylated hyaluronic acid. Through a multi-channel synergistic effect, the effects of relieving, repairing and promoting skin regeneration are improved.

The invention relates to the technical field of high polymer materials, and particularly discloses a high-strength polyurethane adhesive as well as a preparation method and application thereof. The adhesive is prepared by compounding a double-bond-terminated polyurethane prepolymer monomer and a multi-sulfydryl cross-linking agent. And the prepolymer monomer is synthesized by reacting 4, 4-diisocyanate dicyclohexylmethane and hydroxyethyl (meth) acrylate according to a molar ratio of 1: 2. The polythiol cross-linking agent is tetrakis (3-mercaptopropionic acid) pentaerythritol ester or tetrakis (2-mercaptoacetic acid) pentaerythritol ester. When in use, the two components are mixed and then coated on a base material, and the mixture is cured at 30-100 DEG C for 0.5-5 hours. The adhesive disclosed by the invention forms a compact network through multiple crosslinking mechanisms such as sulfydryl-alkene Michael addition, so that the adhesive has extremely high shear strength (up to more than 30MPa) and excellent heat resistance and aging resistance on metal, glass, glass fiber plates and the like.

The invention discloses a carbon nanotube / cadmium selenide quantum dot heterojunction photoelectric catalyst as well as a preparation method and application thereof. The method comprises the following steps: activating single-wall and / or multi-wall carbon nanotubes by aqua regia at room temperature, dispersing the single-wall and / or multi-wall carbon nanotubes in an aqueous solution containing CdCl2. 5H2O, adding a Na2SeSO3 selenium source and 3-mercaptopropionic acid, and reacting at 110-150 DEG C, so that CdSe quantum dots with the particle size of 1-5 nm are subjected to in-situ nucleation growth on the surfaces and / or the interiors of the carbon nanotubes and form a heterojunction interface. The obtained catalyst and Nafion are prepared into ink drops, the ink drops are coated on conductive glass to construct a photocathode, in an H-type electrolytic tank with a light path, a high-purity CO2 saturated bicarbonate aqueous solution is used as an electrolyte, Ag / AgCl is used as a reference electrode, and under irradiation of an LED light source with the maximum wavelength being 450 nm and bias voltage ranging from-0.1 V (vs. RHE) to-1.0 V (vs. RHE), CO is generated through water-phase photoelectrocatalysis CO2 reduction. The photoelectrocatalyst has the characteristics of simple synthesis method and excellent photoelectrocatalytic reduction effect of carbon dioxide.

The application relates to the field of biological medicine, and discloses an active oxygen response thione aldehyde linker as well as a preparation method and application thereof. The thione aldehyde linker structure is a thione aldehyde structure with a p-hydroxyphenyl as a center. The thione aldehyde carbon atom is connected with two -CH2CH2COOH groups through a sulfur atom. The preparation method of the active oxygen response thione aldehyde linker comprises the following steps: dissolving 3-mercapto propionic acid and p-hydroxybenzaldehyde in ethyl acetate, adding trifluoroacetic acid as a catalyst, stirring and reacting at room temperature, and after the reaction is completed, the thione aldehyde linker is obtained through separation and purification. The thione aldehyde linker can respond to the increased ROS level in a tumor microenvironment, is broken under a high ROS condition, and thus realizes the release of a drug molecule connected therewith, which is beneficial to realizing the specific release of the drug at a tumor site.

The invention discloses an oiling agent with high film-forming property and antistatic property for a dry-jet wet spinning precursor and a preparation method of the oiling agent, and belongs to the technical field of carbon fiber precursor oiling agents. The preparation method comprises the following steps: performing HF etching and ultrasonic stripping on a Ti3C2 precursor to prepare single-layer Ti3C2Tm, and compounding the single-layer Ti3C2Tm with fluorinated ionic liquid to form an antistatic nanosheet; the preparation method comprises the following steps: modifying chitosan with 3-mercaptopropionic acid to obtain thiolated chitosan; synthesizing a siloxane-polyurethane block compound from the epoxy modified silicone oil and the polyurethane prepolymer under the action of a catalyst; mixing the antistatic nanosheets, an emulsifier and water to form a first emulsion; emulsifying sulfhydrylated chitosan and a block compound to prepare a second emulsion; and mixing the two emulsions to obtain a finished product. Through the collaborative innovation design of the antistatic nanosheets, the thiolated chitosan and the siloxane-polyurethane block, the problems that a traditional oiling agent is poor in film-forming property, unstable in antistatic property and prone to failure at high temperature are solved, and a key technical support is provided for preparation of high-performance carbon fiber precursors.

The invention relates to the technical field of copper foils, in particular to a carrier copper foil and a preparation method and application thereof. The copper foil comprises a copper foil layer, a stripping layer and a carrier layer; and the stripping layer comprises rare earth oxide nanoparticles and silver nanowires which are distributed in an interlaced manner. Silver nanowires, ethyl alcohol and isopropyl alcohol are mixed, then thiohydracrylic acid, an activating agent and a stabilizing agent are added, mixing is conducted, and suspension liquid containing the silver nanowires and the thiohydracrylic acid is obtained; mixing rare earth oxide, polyvinylpyrrolidone and ethanol, centrifuging, collecting supernate, mixing with an amino-containing silane coupling agent and ethanol, mixing with a suspension containing silver nanowires and thiohydracrylic acid to obtain a stripping layer mixed solution, coating the surface of the carrier layer with the stripping layer mixed solution, and drying to form the stripping layer to obtain the carrier layer attached with the stripping layer; and carrying out electro-deposition on the carrier layer attached with the stripping layer to obtain the carrier copper foil. According to the prepared carrier copper foil, the copper foil layer is thin and can be completely stripped from the surface of the carrier layer.

This invention relates to a thiazole hydroxyphenyl dithiopropionic acid-based zirconium ion fluorescent probe and its preparation method. The preparation method involves a condensation reaction between ethyl 2-(3-aldehyde-4-hydroxyphenyl)-4-methylthiazole-5-carboxylate and mercaptopropionic acid to obtain a thiazole hydroxyphenyl dithiopropionic acid-based Zr ion fluorescent probe. 4+ Fluorescent probe. This invention provides a simple preparation and detection method for a thiazole hydroxyphenyl dithiopropionic acid-based fluorescent probe. It exhibits strong specificity, a wide pH range, and produces blue fluorescence upon binding with zirconium ions, allowing direct detection under ultraviolet light. This method can be applied to natural environments and areas contaminated with transition metals such as mines and chemical plants. 4+ Its convenient and efficient detection capabilities have significant practical application and expansion value.

The invention relates to a self-repairing flexible electronic material based on a non-covalent bond network and a preparation method and application thereof, and the preparation method comprises the following steps: mixing an organic silicon elastomer of a metal coordination bond, a functionalized carbon nanotube, zinc oxide and a peroxide vulcanizing agent, and carrying out a reaction to obtain the self-repairing flexible electronic material, the preparation method of the organosilicone elastomer with the metal coordination bonds comprises the following steps: firstly, mixing polysilicone rubber, thiohydracrylic acid and a photoinitiator, carrying out an ultraviolet irradiation reaction, then mixing a prepolymer, a coordination agent and a metal ion solution, and carrying out a reaction, so as to obtain the organosilicone elastomer with the metal coordination bonds, the preparation method of the functionalized carbon nanotube comprises the following steps: mixing the carbon nanotube and a silane coupling agent, and reacting to obtain the functionalized carbon nanotube. Compared with the prior art, the elastomer material disclosed by the invention can be widely applied to the fields of electronic skin, flexible sensors, intelligent wearable equipment and the like, and is particularly suitable for application scenes needing long-term reliability and environmental adaptability.

This invention relates to a quantum dot light-emitting diode (LED) based on functional layer interface photocrosslinking modification and its fabrication method, belonging to the field of optoelectronic materials and devices technology. The diode comprises sequentially stacked ITO glass substrate, hole injection layer, organic hole transport layer, quantum dot light-emitting layer, electron transport layer, and cathode. Its core technology lies in introducing an interface modification layer at at least one functional layer interface of the device, formed by photoinduced crosslinking of 4-(3-trifluoromethyl-3H-diazacyclopropene-3-yl)benzoic acid. Optionally, this modification layer further comprises a pentaerythritol tetra(3-mercaptopropionate) post-treatment layer. The interface modification can be located between ITO and the hole transport layer, between the quantum dot layer and the electron transport layer, or between the electron transport layer and the cathode. The fabrication method of this invention is simple, has good compatibility with solution processing technology, and can effectively suppress interfacial ion migration, passivate surface defects, and improve device stability.

The present application relates to a kind of water-based polyurethane waterproof coating applied with waterproofing membrane, including by mass fraction: polyether polyol 50~250 parts, diisocyanate 10~60 parts, modified crosslinking agent 1~10 parts, 1,4-butanediol 1~20 parts, ethylenediamine 2~10 parts, trimethylolpropane 2~10 parts, catalyst 2~10 parts, triethylamine 2~10 parts, organic solvent 30~100 parts, rutile titanium dioxide 10~100 parts, filler 100~800 parts, environmental protection type film forming aid 10~100 parts, other auxiliary agent 6.6~45 parts, the rest is water;The modified crosslinking agent is prepared by trifunctional aziridine, trishydroxymethyl aminomethyl methane, ethylene glycol di (3-mercaptopropionate), methyl methacrylate trifluoroethyl ester and 3-(2,3-epoxypropoxy) propyl methyl diethoxysilane, N,N-dimethylformamide and p-benzenesulfonic acid.The present application introduces modified crosslinking agent in water-based polyurethane system, so that the adhesion of coating and waterproofing membrane is firm and the peel strength is significantly improved, and the durability of the waterproof effect of coating and roll composite layer is improved.

This invention discloses a method for preparing organosilicon for low-smoke halogen-free wires, relating to the field of wire and cable technology. The method includes premixing a raw material formulation to obtain a premix; the raw material formulation includes: SEBS substrate, aluminum hydroxide, magnesium hydroxide, styrene-grafted organosilicon anchoring agent, long-chain vinyl-terminated reactive lubricant, dicumyl peroxide, pentaerythritol tetra(3-mercaptopropionate), and an antioxidant; the premix is ​​placed in a twin-screw extruder, and an organosilicon system is formed in the SEBS substrate through reactive extrusion. This invention, through a synergistic process of anchoring-controlled reaction-purification, exhibits excellent processing stability and a low coefficient of friction during high-speed extrusion, while maintaining high mechanical properties, high batch consistency, and long-term service stability.

The application provides a preparation method of polyol carboxylic acid ester, comprising: performing esterification reaction on polyol and a carboxylic acid composition under the action of a catalyst and a water-carrying agent to obtain polyol carboxylic acid ester; the carboxylic acid composition is selected from 3-mercaptopropionic acid and 3,3'-thiodipropionic acid, and the content of the 3,3'-thiodipropionic acid in the carboxylic acid composition is 0.01-1 wt%. The application also provides a polymer composition and an adhesive. The adhesive provided by the application improves the bonding performance of the adhesive by using the carboxylic acid composition instead of 3-mercaptopropionic acid as the reaction raw material of the polyol carboxylic acid ester.

This invention relates to the field of nanomedicine formulation technology, and discloses a ROS-responsive astaxanthin nanoparticle, its preparation method, and its application. The preparation method includes: catalyzing the transketalization reaction of 3-mercaptopropionic acid with 2,2-dimethoxypropane using an alcohol-water tolerant Lewis acid catalyst (preferably scandium trifluoromethanesulfonate) to prepare a thioketal monomer containing dual-terminated carboxyl groups; coupling the thioketal monomer with stearyl alcohol and methoxy polyethylene glycol using a stepwise sequential coupling strategy to construct an amphiphilic polymer with thioketal bonds as ROS-responsive connecting units; co-dissolving the polymer, astaxanthin, and tocotrienols in tetrahydrofuran, and preparing the nanoparticles using a multi-inlet micro-collision flow nanoprecipitation process. The resulting nanoparticles have a particle size of 100 nm to 200 nm, an astaxanthin encapsulation rate of 90% to 99%, and achieve targeted release in response to reactive oxygen species in the pathological microenvironment. Astaxanthin and tocotrienols synergistically exert antioxidant effects.

The invention provides a polyethylene material preparation method, which comprises: adding a hindered phenol antioxidant to a mixture of an allyl organic compound, an organic peroxide and 3-mercaptopropionate, and mixing to obtain a suspension; uniformly mixing paraffin, stearic acid and high-density polyethylene to obtain polyethylene master batches; under the stirring condition, mixing the turbid liquid, a first organic solvent and the polyethylene master batch for reaction, and extruding to obtain mixed master batch; and uniformly mixing the mixed master batch and rhodamine in a second organic solvent to obtain the polyethylene material. The polyethylene material can still store energy and convert light for a long time in rainy days or in the weather with the humidity larger than or equal to 80%, and then the problem that growth of plants is stagnated due to the fact that the plants cannot be supplemented with light in cloudy and rainy days and at night is solved.

The invention discloses a carbon dioxide, temperature and pressure triple response type rheological modifier as well as a preparation method and application thereof, and belongs to the technical field of oil-gas field development. The rheology modifier comprises N, N-dimethylacrylamide, 2-acrylamido-2-methylpropanesulfonic acid, a carbon dioxide response monomer, an alkyl methacrylate hydrophobic monomer, oleamide propyl dimethylamine oxide sulfobetaine, a cross-linking agent, 2, 2 '-azobis (isobutylamidine) dihydrochloride, 3-mercaptopropionic acid and water, and the carbon dioxide response monomer, the alkyl methacrylate hydrophobic monomer, the oleamide propyl dimethylamine oxide sulfobetaine, the cross-linking agent, the 2, 2'-azobis (isobutylamidine) dihydrochloride, the 3-mercaptopropionic acid and the water. The rheology modifier has triple response characteristics of carbon dioxide, temperature and pressure, can realize stable viscosity under high-temperature, high-pressure and high-salt conditions in a fracturing stage in a complex reservoir environment, can realize controllable gel breaking in a soaking stage and intelligent utilization and release of carbon dioxide, and realizes intelligent and low-carbon regulation and control in the whole process of fracturing, soaking and oil displacement.

This invention discloses a polycarboxylate cement water-reducing agent, which is prepared by free radical polymerization and grafting reaction using methyl allyl polyoxyethylene ether, acrylic acid, etc., as raw materials, through a hydrogen peroxide / ascorbic acid low-temperature initiation system. The molecular chain and molecular weight distribution can be controlled. The optimal process is an acid-ether molar ratio of 4:1, with corresponding additive dosages of 1.2 g of mercaptopropionic acid, 3.0 g of hydrogen peroxide, and 0.3 g of ascorbic acid, added in stages and with controlled temperature reaction. The product exhibits excellent dispersion and slump retention properties, with a paste fluidity of 271 mm at 0 min and 254 mm at 60 min, a 28-day compressive strength of 58.6 MPa, and a thermogravimetric initiation temperature of 385 ℃.

The invention relates to a 3-mercaptopropionic acid synthesis and crystallization purification integrated process based on a single solvent, which comprises the following steps: mixing solid alkali, a solvent and acrylic acid, and introducing hydrogen sulfide gas for reaction; after the reaction is finished, the unreacted hydrogen sulfide gas is absorbed by slightly excessive sodium hydroxide solution and is used for preparing sodium sulfide. Then, the reaction liquid is heated to the specified temperature, solid alkali is removed through washing while the reaction liquid is hot, and the obtained water phase is recycled after being concentrated and recrystallized. And carrying out reduced pressure distillation on the mother liquor from which the by-product is separated, and evaporating out the solvent to obtain the purified 3-mercaptopropionic acid product. According to the invention, by optimizing the process flow, the reduced pressure distillation temperature is reduced, the reduced pressure distillation time is shortened, the oxidation of the product at high temperature is effectively avoided, and the reaction yield is obviously improved. In the invention, the solvent has the functions of both a reaction solvent and a crystallization solvent, the yield of 3-mercaptopropionic acid is greater than or equal to 90%, and the product purity is greater than or equal to 99%.

The present invention provides an agent which is for imparting or enhancing an oil / fat cooking aroma, which can be used for foods, drinks, or seasonings in general, and which comprises: 2,4-dienal and / or one or more of n-saturated aldehydes as an active component; one or more of α-amino acids, proline, lysine hydrochloride, cysteine, and glutathione as a key component (component A); and, as a sub component, a component B that is constituted by one or more components from among unsaturated aldehydes, 1-octen-3-ol, and (Z)-6-dodecen-4-olide and / or a component C that is constituted by one or more components (component C-1) from among sulfur compounds and 3-mercaptopropionic acid and one or more hydroxyketones (component C-2).　When the active component is an n-saturated aldehyde, the agent for imparting or enhancing an oil / fat cooking aroma comprises one or more of dicarbonyl compounds as a second key component (component D).

The invention relates to a nanoparticle for use as a drug carrier and the synthesis method of this nanoparticle. In the invention, magnesium / aluminium (Mg / AI) mucoadhesive thiolated layered double hydroxide (nLDHT) nanoparticles are thiolated with L-cysteine and / or thioglycolic acid and / or 2-iminothiolane hydrochloride and / or glutathione and / or N-acetyl cysteine and / or 3-mercaptopropionic acid and / or 6- mercaptohexanoic acid. Thus, nLDHT interacts with the mucin on the surface of the targeted mucosal tissue for a longer period of time and acts with fewer side effects in the target tissues.

The invention discloses an anisotropic conductive adhesive film and a preparation method and application thereof.The preparation method comprises the following steps that polyethylene glycol diacrylate, N, N '-dimethylethylenediamine and pentaerythritol tetrakis (3-mercaptopropionic acid) react to synthesize a component A, and then silver nanosheets are dispersed in polyethylene glycol diacrylate to obtain a component B; mixing the component A, the component B and an organic solvent, blade-coating to form a liquid film, regulating and controlling the temperature of a substrate and surface airflow, and curing after the solvent is volatilized to obtain the anisotropic conductive adhesive film. According to the anisotropic conductive adhesive film provided by the invention, the hexa-sulfydryl polymer with an autocatalysis function is used as a matrix, the silver nanosheets are directionally agglomerated in the Z-axis direction to form a continuous conductive path, and the anisotropic conductive adhesive film has high mechanical bonding strength, stable anisotropic conductive performance and excellent flexibility and can meet the connection requirements of flexible hybrid electronic devices.

To provide an oil and fat cooking aroma imparting or enhancing agent which can be used for foods and drinks or seasonings in general, has a high effect of contributing to oil and fat cooking aroma, and can satisfy the taste of consumers.SOLUTION: One or more of 2, 4-dienal and / or n-saturated aldehyde as an active ingredient, any one or more of α - amino acid, proline, lysine hydrochloride, cystine, and glutathione as a key ingredient (ingredient A), disclosed is a cooking aroma imparting or enhancing agent for fats and oils, which contains a component (C) composed of at least one of an unsaturated aldehyde, 1-octen-3-ol and (Z) - 6-dodecen-4-olide (component (B)) and / or at least one of a sulfur compound and 3-mercaptopropionic acid (component (C-1)) and at least one of a hydroxyketone (component (C-2)). However, when the active ingredient is the n-saturated aldehyde, one or more dicarbonyl compounds are contained as the second key component (component D).SELECTED DRAWING: None

The invention discloses a hydrogel electrode with an embedded super-hydrophobic / conductive coating, which is characterized in that a carbon black / hydrogel composite electrode is used as a solid substrate, and then a CNTs coating is constructed on the surface of the carbon black / hydrogel composite electrode through a monomolecular layer membrane technology; then vinyl-terminated polydimethylsiloxane (Vi-PDMS), pentaerythritol tetra-3-mercaptopropionate (PETMP) and benzoin dimethyl ether (DMPA) are uniformly mixed in a dichloromethane solution, and the mixture is sprayed on the surface of the CNTs coating, so that a CNTs / Vi-PDMS / PETMP coating is formed, and the hydrogel electrode with the embedded super-hydrophobic / conductive coating is formed. The problems of unstable structure and reduced sensing performance caused by expansion of hydrogel and loss of conductive components due to diffusion of the hydrogel on an interface in a water environment in the prior art are solved. The invention further discloses a preparation method and application of the hydrogel electrode with the embedded super-hydrophobic / conductive coating.

This invention discloses a triple-responsive rheology modifier for carbon dioxide, temperature, and pressure, its preparation method, and its application, belonging to the field of oil and gas field development technology. The rheology modifier comprises N,N-dimethylacrylamide, 2-acrylamido-2-methylpropanesulfonic acid, a carbon dioxide-responsive monomer, an alkyl methacrylate hydrophobic monomer, oleamide-propyl dimethylamine oxide sulfobetaine, a crosslinking agent, 2,2'-azobisisobutylamidine dihydrochloride, 3-mercaptopropionic acid, and water. The rheology modifier of this invention exhibits triple-responsive characteristics to carbon dioxide, temperature, and pressure, enabling viscosity stability under high temperature, high pressure, and high salinity conditions during fracturing in complex reservoir environments, controllable gel breaking during well shut-in, and intelligent utilization and release of carbon dioxide, achieving intelligent and low-carbon control throughout the entire fracturing, well shut-in, and oil displacement process.

The application relates to the technical field of vacuum bag film for aviation manufacturing, and discloses an eleven-layer co-extrusion film for aviation and a preparation process, specifically: a single alkenyl double epoxy compound is used to perform grafting modification treatment on polyamide acid through a carboxyl-epoxy ring-opening reaction to prepare alkenyl functionalized processable polyimide; 3-mercapto propionic acid is used to modify nylon 6 resin through an amino-carboxyl condensation reaction to prepare a mercapto functionalized nylon; under hot melting conditions, the alkenyl functionalized processable polyimide and the mercapto functionalized nylon are induced to react through a free radical initiator to prepare PA-PI alloy masterbatch; the masterbatch is used as a functional modification component of co-polyamide 6 / 66 resin; and through an eleven-layer co-extrusion blowing process, an eleven-layer co-extrusion film is prepared; the film product has excellent comprehensive performance and can be used as a high-temperature-resistant vacuum bag film for curing of aviation composite materials.

The application discloses a UV insulation protective adhesive tape for new energy batteries and a preparation process thereof, and relates to the technical field of adhesives. Specifically, the process comprises the following steps: S1: uniformly mixing epoxy resin, epoxy acrylate, a photobase generator, a photosensitizer, a free radical inhibitor, dipropylene glycol diacrylate, pentaerythritol tetra-3-mercaptopropionate, a mercapto-modified ternary ethylene-propylene rubber, a fluorine-containing modifier and an organic solvent to obtain a UV adhesive; S2: coating the UV adhesive on an insulation base film, curing at 90-110 DEG C for 5-8 min to obtain an adhesive layer, and compounding a release film on the surface of the adhesive layer to obtain the UV insulation protective adhesive tape for new energy batteries; and the UV insulation protective adhesive tape prepared by the application is of a delayed curing type and has excellent insulation and chemical corrosion resistance.

The invention discloses a polymer-based pipeline wear-resistant and low-temperature-resistant coating material and a preparation method thereof in the field of polymer materials. The material is prepared from polyamide, dynamic lipoic acid network modified polyurethane urea, a liquid crystal benzoxazole polysiloxane alternating copolymer, silicon carbide, nano niobium carbide, trimethylolpropane trimercaptopropionate, an antioxidant and a flatting agent according to a specific ratio. The preparation method comprises the following steps: carrying out melt blending granulation on the three polymer matrixes to obtain a modified resin base material, carrying out dry mixing on the modified resin base material and other components, and carrying out melt extrusion and tape casting. The two key modified compounds are respectively prepared by reacting polytetrahydrofuran with dicyclohexylmethane diisocyanate and then sequentially adding pyridine dimethyl carbinol, lipoic acid lactone and isophorone diamine; and amino polysiloxane reacts with dihydroxyphthalaldehyde, and then amino cresol is added for cyclization to obtain the amino polysiloxane. The coating material disclosed by the invention has excellent wear resistance, low temperature resistance and self-repairing function, and is suitable for extreme environments such as high-pressure hydrogen conveying pipelines.

The invention belongs to the field of functional polymers, and particularly relates to a detachable epoxy vitrimer-based potting electrical component adaptive to a wide temperature range. The invention relates to an epoxy vitrimer resin, which is composed of isocyanuric acid tris [2-(3-mercaptopropionyloxy) ethyl ester], trimethylolpropane tris (3-mercaptopropionate), pentaerythritol tetra (mercaptoacetic acid) ester, tetrahydrophthalic acid diglycidyl ester, bisphenol A diglycidyl ether, and dithio diphenyl diglycidyl ether, and the preparation method of the epoxy vitrimer resin comprises the following steps: mixing the epoxy vitrimer resin, the trimethylolpropane tris (3-mercaptopropionate), the pentaerythritol tetra (mercaptoacetic acid) ester, the tetrahydrophthalic acid diglycidyl ester, the bisphenol A diglycidyl ether and the dithio diphenyl diglycidyl ether; and after the electrical component represented by the high-voltage electrical component is encapsulated, the curing reaction is performed for more than 6 hours at the room temperature of 100 DEG C below zero. After complete curing, the epoxy vitrimer-based potting electrical component has wide temperature range adaptability, and meanwhile, selective complete disassembly and repotting can be realized in a specific sulfydryl or alkaline solution.