CN113462183A - SMC composite material with high flame retardance and low density - Google Patents
SMC composite material with high flame retardance and low density Download PDFInfo
- Publication number
- CN113462183A CN113462183A CN202110354681.1A CN202110354681A CN113462183A CN 113462183 A CN113462183 A CN 113462183A CN 202110354681 A CN202110354681 A CN 202110354681A CN 113462183 A CN113462183 A CN 113462183A
- Authority
- CN
- China
- Prior art keywords
- parts
- smc
- flame
- composite material
- density
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
Abstract
The invention provides a high-flame-retardant low-density SMC (sheet molding compound) composite material, belongs to the field of composite materials, and solves the problem that the flame retardance and the mechanical property of the conventional SMC material are difficult to meet the requirements, and the density is only 1.25-1.5g/cm3Compared with the common SMC, the weight is reduced by 16-30%, and the flame retardant property is excellent: the horizontal burning grade reaches HB grade, and the vertical burning reaches V-0 grade. The SMC composite material comprises the following components in parts by mass: 68-79 parts of flame-retardant unsaturated resin, 30-40 parts of low-shrinkage additive, 25-35 parts of glass microsphere, 75 parts of light filler and 1.5 parts of dicyclohexyl peroxydicarbonate.
Description
Technical Field
The invention belongs to the field of composite materials, and particularly relates to a high-flame-retardant low-density SMC composite material.
Background
The SMC composite material is one of glass fiber reinforced plastics, and its main raw material is formed from GF (special-purpose yarn), MD (filling material) and various assistants. The SMC composite material and the SMC molded product thereof have excellent electrical insulation performance, mechanical performance, thermal stability and chemical corrosion resistance. Therefore, the SMC product has a wide application range, and mainly has the following application fields: applications in the electrical industry, applications in the automotive industry, applications in rail vehicles, applications in communication engineering, applications in housings for explosion-proof electrical equipment, etc.
The SMC die pressing process is an advanced composite material forming method, and the SMC sheet molding compound is low in price and convenient to use, can be used for quickly forming products with different specifications, sizes and shapes, and is more and more accepted by the market. At present, the SMC mainly takes unsaturated polyester resin and vinyl resin as matrixes, but the unsaturated polyester resin and the vinyl resin SMC have the defects of poor temperature resistance and heat resistance, low structural strength and modulus and the like. Meanwhile, the traditional SMC resin cannot meet the light application requirements of high flame retardance, low density, high strength and the like of SMC materials in the fields of rail transit, automobiles and the like.
Disclosure of Invention
The invention provides a high-flame-retardant low-density SMC composite material, thereby solving the problem of the existing SMC material
The flame retardance and the mechanical property of the material are difficult to meet the requirements.
In order to realize the purpose, the invention adopts the following technical scheme:
the SMC composite material with high flame retardance and low density comprises the following components in parts by mass: 68-79 parts of flame-retardant unsaturated resin, 30-40 parts of low-shrinkage additive, 25-35 parts of glass microsphere, 75 parts of light filler and 1.5 parts of dicyclohexyl peroxydicarbonate.
The low-shrinkage additive is block-type polyvinyl acetate-styrene (PVAc-St), and the density of the glass beads is 0.2g/m3The flame-retardant unsaturated resin has a flame-retardant grade up to UL94-V0 and a density lower than 1.15g/cm3。
Has the advantages that: the invention provides a high flame-retardant low-density SMC composite material, the density of which is only 1.25-1.5g/cm3Compared with the common SMC, the weight is reduced by 16-30%, and the flame retardant property is excellent: the horizontal combustion grade reaches HB grade, the vertical combustion reaches V-0 grade, and the material meets the requirements of dust density, continuous immersion experiment and external fire experiment.
Detailed Description
The present invention will be described in detail with reference to the following specific examples:
example 1
The SMC composite material with high flame retardance and low density comprises the following components in parts by massDividing into: 70 parts of flame-retardant vinyl resin, 35 parts of block type polyvinyl acetate-styrene (PVAc-St), 30 parts of glass beads, 75 parts of light filler and 1.5 parts of dicyclohexyl peroxydicarbonate; the glass beads have a density of 0.2g/m3The flame-retardant unsaturated resin has a flame-retardant grade up to UL94-V0 and a density lower than 1.15g/cm3。
Example 2
The SMC composite material with high flame retardance and low density comprises the following components in parts by mass: 68 parts of flame-retardant vinyl resin, 40 parts of block type polyvinyl acetate-styrene (PVAc-St), 25 parts of glass beads, 75 parts of light filler and 1.5 parts of dicyclohexyl peroxydicarbonate; the glass beads have a density of 0.2g/m 3The flame-retardant unsaturated resin has a flame-retardant grade up to UL94-V0 and a density lower than 1.15g/cm3。
Example 3
The SMC composite material with high flame retardance and low density comprises the following components in parts by mass: 68 parts of flame-retardant vinyl resin, 30 parts of block-type polyvinyl acetate-styrene (PVAc-St), 35 parts of glass beads, 75 parts of light filler and 1.5 parts of dicyclohexyl peroxydicarbonate; the glass beads have a density of 0.2g/m3The flame-retardant unsaturated resin has a flame-retardant grade up to UL94-V0 and a density lower than 1.15g/cm3。
The above are only preferred embodiments of the present invention, and the scope of the present invention should not be limited thereby, and all modifications made on the basis of the technical solutions according to the technical ideas presented in the present invention are within the scope of the present invention.
Claims (5)
1. The SMC composite material with high flame retardance and low density is characterized by comprising the following components in parts by mass: 68-79 parts of flame-retardant unsaturated resin, 30-40 parts of low-shrinkage additive, 25-35 parts of glass microsphere, 75 parts of light filler and 1.5 parts of dicyclohexyl peroxydicarbonate.
2. A high fire retardant, low density SMC composite as in claim 1 wherein the low shrinkage additive is a block type of polyvinyl acetate-styrene (PVAc-St).
3. A high fire retardant, low density SMC composite as in claim 1 wherein the glass bead density is 0.2g/m3。
4. A high fire retardant, low density SMC composite as in claim 1 wherein the fire retardant unsaturated resin has a fire retardant rating of up to UL 94-V0.
5. A highly fire retardant, low density SMC composite as in claim 1 or 4 wherein the fire retardant unsaturated resin has a density below 1.15g/cm3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110354681.1A CN113462183A (en) | 2021-04-01 | 2021-04-01 | SMC composite material with high flame retardance and low density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110354681.1A CN113462183A (en) | 2021-04-01 | 2021-04-01 | SMC composite material with high flame retardance and low density |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113462183A true CN113462183A (en) | 2021-10-01 |
Family
ID=77868433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110354681.1A Pending CN113462183A (en) | 2021-04-01 | 2021-04-01 | SMC composite material with high flame retardance and low density |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113462183A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1177722A (en) * | 1997-09-10 | 1999-03-23 | Hitachi Chem Co Ltd | Production of fiber reinforced plastic molded product |
| JP2009007464A (en) * | 2007-06-27 | 2009-01-15 | Japan Composite Co Ltd | Manufacturing method for molding material, molding material, and molding |
| CN101575444A (en) * | 2009-03-17 | 2009-11-11 | 无锡新宏泰电器科技股份有限公司 | Low-density SMC polyester moulding compound and preparation method thereof |
| CN102634184A (en) * | 2012-05-17 | 2012-08-15 | 镇江育达复合材料有限公司 | SMC (sheet molding compound) material for passenger car covering parts and preparation method thereof |
| CN107353613A (en) * | 2017-06-23 | 2017-11-17 | 振石集团华美新材料有限公司 | Low smoke density sheet molding compound of a kind of low-density and preparation method thereof |
| CN107556721A (en) * | 2017-10-10 | 2018-01-09 | 无锡新宏泰电器科技股份有限公司 | A kind of SMC polyester molding compounds and preparation method thereof |
| CN108219414A (en) * | 2017-12-20 | 2018-06-29 | 安徽鑫普瑞复合材料有限公司 | A kind of high intensity low density SMC moulding compounds and its manufacturing method |
| CN110591406A (en) * | 2018-06-13 | 2019-12-20 | 郑州深澜动力科技有限公司 | Low-density high-flame-retardant SMC battery pack material, preparation method thereof and battery pack |
| CN110951227A (en) * | 2019-12-23 | 2020-04-03 | 无锡新宏泰电器科技股份有限公司 | SMC polyester molding compound and preparation method and application thereof |
| CN111138820A (en) * | 2018-11-06 | 2020-05-12 | 振石集团华美新材料有限公司 | Light high-flame-retardant sheet molding compound and preparation method thereof |
| CN111171540A (en) * | 2020-02-03 | 2020-05-19 | 武汉理工大学 | Low-density low-pressure sheet molding compound and preparation method thereof |
| CN111518370A (en) * | 2020-04-24 | 2020-08-11 | 南京聚发新材料有限公司 | Flame-retardant sheet molding compound, preparation method thereof, flame-retardant fiber reinforced composite material pressed by flame-retardant sheet molding compound and preparation method thereof |
-
2021
- 2021-04-01 CN CN202110354681.1A patent/CN113462183A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1177722A (en) * | 1997-09-10 | 1999-03-23 | Hitachi Chem Co Ltd | Production of fiber reinforced plastic molded product |
| JP2009007464A (en) * | 2007-06-27 | 2009-01-15 | Japan Composite Co Ltd | Manufacturing method for molding material, molding material, and molding |
| CN101575444A (en) * | 2009-03-17 | 2009-11-11 | 无锡新宏泰电器科技股份有限公司 | Low-density SMC polyester moulding compound and preparation method thereof |
| CN102634184A (en) * | 2012-05-17 | 2012-08-15 | 镇江育达复合材料有限公司 | SMC (sheet molding compound) material for passenger car covering parts and preparation method thereof |
| CN107353613A (en) * | 2017-06-23 | 2017-11-17 | 振石集团华美新材料有限公司 | Low smoke density sheet molding compound of a kind of low-density and preparation method thereof |
| CN107556721A (en) * | 2017-10-10 | 2018-01-09 | 无锡新宏泰电器科技股份有限公司 | A kind of SMC polyester molding compounds and preparation method thereof |
| CN108219414A (en) * | 2017-12-20 | 2018-06-29 | 安徽鑫普瑞复合材料有限公司 | A kind of high intensity low density SMC moulding compounds and its manufacturing method |
| CN110591406A (en) * | 2018-06-13 | 2019-12-20 | 郑州深澜动力科技有限公司 | Low-density high-flame-retardant SMC battery pack material, preparation method thereof and battery pack |
| CN111138820A (en) * | 2018-11-06 | 2020-05-12 | 振石集团华美新材料有限公司 | Light high-flame-retardant sheet molding compound and preparation method thereof |
| CN110951227A (en) * | 2019-12-23 | 2020-04-03 | 无锡新宏泰电器科技股份有限公司 | SMC polyester molding compound and preparation method and application thereof |
| CN111171540A (en) * | 2020-02-03 | 2020-05-19 | 武汉理工大学 | Low-density low-pressure sheet molding compound and preparation method thereof |
| CN111518370A (en) * | 2020-04-24 | 2020-08-11 | 南京聚发新材料有限公司 | Flame-retardant sheet molding compound, preparation method thereof, flame-retardant fiber reinforced composite material pressed by flame-retardant sheet molding compound and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102532681B (en) | Halogen-free flame-retardant continuous fiber reinforced polypropylene composite material and preparation method thereof | |
| CN103396596B (en) | A kind of antistatic anti-aging plastics and preparation method thereof | |
| CN102875968A (en) | Flame-retardation enhanced epoxy plastic sheet material and its preparation method | |
| CN105001525A (en) | Low-VOC low-odor environmental-friendly flame-resistant glass fiber reinforced PP composite material and preparation method thereof | |
| CN113150430A (en) | Self-crosslinking polyethylene heat-shrinkable tube material and preparation method and application thereof | |
| CN105670288A (en) | High-performance flame-retardancy insulating plastic material and preparation method thereof | |
| CN103073825A (en) | Composition for solid plasticized high-flame-retardant PVC sheath material and preparation method of composition | |
| CN113462183A (en) | SMC composite material with high flame retardance and low density | |
| CN103467852B (en) | A kind of Polypropylene flame-retardant plastic | |
| CN103396645A (en) | Flame-retardant plastic and preparation method thereof | |
| CN112521681A (en) | High-temperature-resistant high-humidity-resistant halogen-free flame-retardant antistatic polypropylene material | |
| CN114015164A (en) | Flame-retardant polypropylene material and preparation method thereof | |
| CN113667264A (en) | Flame-retardant modified ABS composite material and preparation method thereof | |
| CN112898680A (en) | Television backboard and preparation method thereof | |
| CN110724337B (en) | Silane cross-linked flame-retardant semiconductive polyolefin sheath material and preparation method and application thereof | |
| CN110591406A (en) | Low-density high-flame-retardant SMC battery pack material, preparation method thereof and battery pack | |
| CN106496734A (en) | The production method of polyolefin heat-shrink tube is pressed in a kind of environmental-protection flame-retardant | |
| CN113527805A (en) | Self-assembled hybrid filler modified polypropylene flame-retardant film and preparation method thereof | |
| CN112552616A (en) | Flame-retardant PVC cable material and preparation method and application thereof | |
| CN114621581A (en) | High-thermal-conductivity nylon and preparation method thereof | |
| CN112759851A (en) | Flame-retardant polystyrene composite material and preparation method and application thereof | |
| CN115260640B (en) | High-temperature-resistant cable insulating material and preparation method thereof | |
| CN115028881B (en) | EPP (expanded polypropylene) beads, preparation method of EPP beads and molded part of EPP beads | |
| CN114539731B (en) | Flame-retardant material and preparation method thereof | |
| CN113651998B (en) | Composition, flame retardant containing composition and preparation method of flame retardant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20211001 |
|
| WD01 | Invention patent application deemed withdrawn after publication |