The invention relates to a flame-retardant composite material floor board as well as a preparation method thereof, and belongs to the technical field of composite material floor boards The floor board has a sandwiched structure, and comprises skin, a core material as well as flame-retardant structure glue for bonding the skin and the core material; the material of the skin is continuous fiber reinforced epoxy resin prepreg; the material of the core material is aramid fiber honeycomb; the flame-retardant structure glue is epoxy resin According to the invention, the fiber material prepreg which is prepared from halogen-free flame retardant and toughening modified epoxy resin acts as the material of the skin, so that the sandwiched layer structure composite material has a favorable flame-retardant effect, and the excellent mechanical performance of shock resistance, bending and pressing resistance, abrasion resistance and the like of epoxy materials are kept for the material

Flame-retardant composite material floor board as well as preparation method thereof

The invention belongs to composite material forming technologies and relates to a method for manufacturing multi-directional laid composite material porosity detection comparison sample pieces. The method comprises the following steps: when composite material prepreg is laid, adding a solvent which is soluble with resin and can easily volatile among prepreg layers; when laid laminated boards are solidified, adjusting the pressure and the pressure time to form pores, and enabling the pores to be uniformly formed in the laminated boards so as to manufacture the comparison sample pieces meeting composite material laminated board porosity detection. According to the method, a conventional mode that porosity comparison sample pieces need to be accumulated in the long-term production process is changed, the uniformly distributed porosity detection sample pieces with the controllable porosity can be manufactured within a short time, and urgent demands of a new generation aircraft on a porosity detection technology are met.

Method for manufacturing composite material porosity detection comparison sample pieces

The invention belongs to the technical field of preparation of prepreg, and particularly relates to a flame-retardant and heat-resistant epoxy resin for self-adhesive prepreg. The resin for the prepreg consists of an epoxy resin mixture component A and a curing agent mixture component B. The epoxy resin mixture component A accounts for 50-80 parts by weight of the resin, and the curing agent mixture component B accounts for 10-40 parts by weight of the resin. The prepreg is prepared by a hot melt adhesive dipping reinforcing material of a composition; a composite material is formed by the prepreg. The viscosity of the prepreg is moderate, and the processability is good; the storage time at the normal temperature is 3 months. The prepreg can be cured completely within 2 hours at the temperature of 135 DEG C. The glass-transition temperature of the cured composite material is 180-210 DEG C; heat resistance and flame retardance of the composite material are good. The resin for the hot melting prepreg provided by the invention has been toughened and modified, the self-adhesive property of the prepreg is good, honeycombs can be adhered directly, adhesive films are not required, the process can be simplified, and the weight can be reduced.

Flame-retardant and heat-resistant epoxy resin for self-adhesive prepreg

The invention discloses a flame retardant carbon fiber prepreg, which includes a carbon fiber layer and flame retardant epoxy resin impregnated in the carbon fiber layer; and release paper directly attached to the outer surface of the carbon fiber layer In addition, the invention also discloses a hot melting two-step preparation method for the carbon fiber prepreg, and the method includes membrane preparation and preimpregnation The method provided by the invention is simple, the prepared flame retardant carbon fiber prepreg can have a very good flame retardant effect, and at the same time, the product also meets the demands (ROSH, Reach up to stand) of environmental protection products Thus, the flame retardant carbon fiber prepreg can be widely used in the electronics and other 3C product field so as to form lightweight, high strength and flame retardant carbon fiber products

Flame retardant carbon fiber prepreg and preparation method thereof

The invention relates to an impact-resistant and fireproof glass fiber reinforced phenolic aldehyde board and a preparation method thereof. The board adopts a laminating structure and is formed through hot pressing of multiple layers of prepregs according to the thickness of the board, wherein each prepreg comprises components in percentage by mass as follows: 65%-75% of fiber reinforced materials and 25%-35% of phenolic resin matrix; the phenolic resin matrix comprises components in parts by mass as follows: 100 parts of phenolic resin, 8-15 parts of a toughening agent, 5-10 parts of a fire retardant and 3-5 parts of a thickening additive. The impact resistance of the glass fiber reinforced phenolic aldehyde board is improved by more than 50% while compared with that of conventional phenolic resin based composite, the flame retardant property meets the requirements of CCAR25 and FAR25, particularly, the density of smoke produced after the board is burnt for 4 min is lower than 10, a preparation process is simple, the processing manufacturability and the economical efficiency are good, and the impact-resistant and fireproof glass fiber reinforced phenolic aldehyde board is particularly suitable for being used as a decorative liner plate to be mounted in cargo compartments of an airplane, a ship and a high-speed rail train.

Impact-resistant and fireproof glass fiber reinforced phenolic aldehyde board and preparation method thereof

The present invention relates to a flame retardant epoxy prepreg composite material and its preparation method and its use, the composite material contains 20 to 70% of epoxy resin matrix and 30-80% of fiber reinforced materials; wherein the epoxy resin matrix comprises the following components by mass part: 100 parts of an F type epoxy resin, 10-50 parts of an E type epoxy resin, 5-40 parts of tetrabromobisphenol A, 5-20 parts of a curing agent, 1-10 parts of a curing accelerator, 5-25 parts of a toughening agent, 1-10 parts of antimonous oxide and 20-80 parts of an organic solvent. According to the invention, F46 type epoxy resin containing a rigid frame structure is taken as a main component, the flame retarding and toughening modification are carried out on the resin matrix by a combination technology, the epoxy composite material with high toughness, high flame retardancy and good overlaying manufacturability can be realized, the flue gas density is obviously decreased when the flame is carried out, and the epoxy prepreg composite material possesses important popularization and application prospects in the fields of large aircraft, ships, high-speed rails and the like.

Flame retardant epoxy prepreg composite material and its preparing method and its use

Preparation method of high-toughness flame retardation phenolic prepreg composite material

The invention relates to a SiO2-TiO2 inorganic hybrid thermosetting thermosetting phenolic resin and a preparation method thereof. The phenolic resin comprises the following mass part: 100-200 parts of phenol, 85-175 parts of formaldehyde solution, 0.2-8 parts of ethyl orthosilicate and 0.2-8 parts of tetrabutyl titanate. The method comprises the following steps: taking phenol, a formaldehyde solution, ethyl orthosilicate and tetrabutyl titanate as a reactant, and adding 0.3-2 parts of barium hydroxide octahydrate and 0.5-2.5 parts of phosphoric acid solution to adjust pH value of the reactant. The problem of dispersibility of physically-doped silica and titanium dioxide in phenolic resin can be solved, the phenolic resin material with better and more uniform dispersibility can be obtained, Si-O bond and Ti-O bond with high bond energy can be formed after phenolic resin is solidified, residual carbon rate of phenolic resin can be effectively increased, and anti-ablation performance and mechanical property of the composite materials can be improved.

SiO2-TiO2 inorganic hybrid thermosetting thermosetting phenolic resin and preparation method thereof

The utility model discloses a positioning device for a net size forming mold. The positioning device comprises a first outer frame, a second outer frame, an upper cover plate, a base, a core mold, a glue injection nozzle and a glue outlet nozzle, wherein the first outer frame and the second outer frame are in bolted connection to form an external frame of the forming mold, the contact surfaces of the first outer frame and the second outer frame are in a Z-shaped structure, the upper end surface and the lower end surface of each of the first outer frame and the second outer frame are respectively positioned through the upper cover plate and the base and locked through bolts or screws, the upper cover plate is provided with the glue injection nozzle, the base is provided with the glue outlet nozzle, and the core mold is composed of three sections and arranged in a preform. By adopting three positioning modes, the first positioning structure adopts an outer frame self-locking positioning mode, the second positioning structure adopts a sectioning core mold positioning manner, and the third positioning structure adopts that a female slot and a male slot of the base and the upper cover plate are engaged to lock with each other so as to be positioned on the outer frames; the forming mold prepared by adopting a positioning method is precise in positioning, and the mold-filling and de-molding operations are simple and convenient.

Positioning device for net size forming mold

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.

Wang Wei

Author Tools

Chat about Author