The invention discloses a preparation method of emulsion for coating a high-temperature resistant and flame-retardant glass fiber sleeve. The raw materials in parts by mass are prepared as follows: 70-90 parts of tetrafunctional glycidyl amine epoxy resin, 10-30 parts of brominated epoxy resin, 80-100 parts of a curing agent, 0.5-2 parts of an accelerant, 10-20 parts of a flexibilizer and 0.05-0.10 part of polymethylsiloxane. The preparation method comprises the following steps in sequence: S1, mixing tetrafunctional glycidyl amine epoxy resin and brominated epoxy resin in a forced mixer uniformly to obtain a mixed solution; S2, heating the mixed solution obtained in step S1 to 40-70 DEG C, adding the curing agent, the accelerator, the flexibilizer and polymethylsiloxane to the mixed solution, performing mixing in the forced mixer at a mixing speed of 60-80 r/min for 40-60 min, and then keeping the temperature for standing to obtain the product. The method has the advantages of being simple, easy to operate, safe and environmentally friendly, facilitates industrialization and has remarkable economic benefits.

Preparation method of emulsion for coating high-temperature-resistant and flame-retardant glass fiber sleeve

The invention relates to the technical field of high-temperature superconducting coils, and in particular to a high-temperature superconducting coil and a curing method thereof. The invention providesa high-temperature superconducting coil. The high-temperature superconducting coil comprises a plurality of cake-type high-temperature superconducting coils and an epoxy resin layer, all the cake-type high-temperature superconducting coils are aligned and arranged to form a coil body; and an epoxy resin layer is fixedly arranged on the periphery of the coil body, and no epoxy resin is filled between the adjacent high-temperature superconducting tapes in the coil body. The invention provides a high-temperature superconducting coil, and effectively solves the technical problem of performance degradation of a high-temperature superconducting coil prepared by a traditional epoxy resin curing method.

High-temperature superconducting coil and curing method thereof

The invention relates to a rubber state resin casting preparation method, and belongs to the field of production methods of high molecular materials. Bubbles are eliminated through a hot-pressing tankhigh-temperature pressurizing debubbling technology. The rubber state resin casting preparation method specifically comprises the steps of mold preparation, resin casting, resin pretreatment, hot-pressing tank tool preparation, resin solidification and demolding. The rubber state resin casting preparation method mainly aims at a resin system with the viscosity being greater than or equal to 100 Pa.s under the temperature of 45 DEG C, a prepared resin casting is flat and free of the bubbles, reliable data are provided, and thus the properties of resin can be reflected truly; and the problem that the bubbles at the bottom of the rubber state resin system casting are eliminated not completely is solved, the situation that the manufacturing effect of the rubber state resin casting is not ideal is broken, and the rubber state resin casting preparation method is suitable for resin systems with the medium and low viscosity as well.

Rubber state resin casting preparation method

The invention relates to epoxy resin for a prepreg tape and a preparation method of the epoxy resin and belongs to the field of polymer materials. Raw materials including 15-50 parts by mass of bisphenol A epoxy resin and 20-60 parts by mass of a flexibilizer are poured into a mixing kettle for mixing, and a uniform liquid mixture I is obtained and defoamed in vacuum for 0.5-1.5 h; the mixture iscooled to 100 DEG C or lower, and resin is discharged by a pressure feeder into a clean and dry resin barrel for standby application; the mixture obtained in the last step, 10-50 parts of multifunctional epoxy resin and 15-50 parts of phenolic aldehyde epoxy resin are poured into the mixing kettle for mixing, and a uniform liquid mixture II is obtained, defoamed in vacuum for 0.5-1.5 h and cooledto 70 DEG C or lower; 2-90 parts of a curing agent and 0.1-3 parts of an accelerator are added to the mixing kettle for mixing, the speed of stirring paddles is 500-800 rpm, mixing is performed at 65-85 DEG C for 10-40 min, vacuum defoaming is performed, and a uniform liquid mixture III is obtained; the prepared epoxy resin composition flows into trays through the pressure feeder for subpackaging,naturally cooled at room temperature and packaged into a finished product.

Epoxy resin for prepreg tape and preparation method of epoxy resin

The invention relates to the field of high polymer materials, in particular to a preparation method of a high-viscosity formula resin casting body. The preparation method comprises the following stepsthat a, a resin sample is taken, a temperature-viscosity curve of the resin is measured through a rheometer, a pressurization point is determined, gelation time of the resin at the specific temperature is measured through a gel measuring gauge, pressurization time is determined, thermal analysis is carried out on the resin through a differential scanning calorimeter, and curing temperature and time are determined; b, all faces, making contact with the resin, of a die are coated with a releasing agent, a smooth and flat die plate is paved with an air guide cloth, the die is placed to the air guide cloth, and the prepared whole set of die is placed into a drying oven; c, the high-viscosity formula resin is placed into the preheated die and then placed into a hot pressing tank; d, curing technological parameters comprising the pressurization point, the pressurization amount, the heating and cooling speed, the processing temperature and the heat preservation time are set on a control panel of the hot pressing tank, and the curing step starts to be executed after the technological parameters are set; e, a cured high-viscosity resin casting body flat plate is taken out of the flat platecasting die; and f, the sample is machined by selecting a grinding way according to standard sampling requirements.

Preparation method of high-viscosity formula resin casting body

The invention relates to the field of high polymer materials, in particular to an epoxy resin composition and a preparation method of a prepreg thereof. Polyfunctional group epoxy resin and liquid bisphenol A epoxy resin are adopted as matrix resin, DDS and MCA10 are adopted as a compound curing agent, a BF3-monoethylamine complex is adopted as an accelerant, flexibilizer thermoplastic resin and athixotropic agent TS720 are adopted as modifiers and are mixed in a mixing tank to obtain a low-temperature curing heat-resisting epoxy resin composition, and the prepreg is prepared through a hot melting method. The prepared epoxy resin composition and the prepreg are applicable to a hand molding method, vacuum bag pressing, autoclaves and other technologies and are applied to the fields of automobiles, track traffic, unmanned aerial vehicles, sports leisure, composite mold manufacturing and the like.

Epoxy resin composition and preparation method of prepreg thereof

The invention relates to resin for a wind turbine blade presoaked material and a production method of the resin, and belongs to the field of high-molecular materials. The resin comprises, by weight, 60-80 parts of bisphenol A epoxy resin, 10-25 parts of toughened modified epoxy resin, 2-20 parts of curing agents and 1-15 parts of thixotropic agents. The preparation method includes the steps: stirring the bisphenol A epoxy resin and the toughened modified epoxy resin at the temperature of 100 DEG C by weight in a formula for 15-25 minutes, performing vacuum pumping in the stirring process to obtain solution, and taking the solution as a component A; adding the thixotropic agents into the component A by weight in a formula, stirring mixture for 5-10 minutes to solution, and taking the solution as a component B; adding the curing agents by weight in a formula when the component B is cooled to reach the temperature of 65-75 DEG C, stirring mixture for 5-10min, opening a vacuum system, andstirring the mixture for 15-2omin to obtain the epoxy resin for the wind turbine blade presoaked material.

Resin for wind turbine blade presoaked material and preparation method of resin

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Li Shenglin

Author Tools

Chat about Author

Papers

Epoxy resin for prepreg tape and preparation method of epoxy resin

Preparation method of high-viscosity formula resin casting body

Epoxy resin composition and preparation method of prepreg thereof

Resin for wind turbine blade presoaked material and preparation method of resin