CN115447249A - Flame-retardant high-strength composite board and production method thereof - Google Patents
Flame-retardant high-strength composite board and production method thereof Download PDFInfo
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- CN115447249A CN115447249A CN202211107649.4A CN202211107649A CN115447249A CN 115447249 A CN115447249 A CN 115447249A CN 202211107649 A CN202211107649 A CN 202211107649A CN 115447249 A CN115447249 A CN 115447249A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/42—Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/04—Layered products comprising a layer of synthetic resin as impregnant, bonding, or embedding substance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/0076—Curing, vulcanising, cross-linking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
- B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
Abstract
The invention discloses a flame-retardant high-strength composite board and a production method thereof, wherein the flame-retardant high-strength composite board comprises a gel coat, at least one reinforcing fiber layer and a yarn layer, the gel coat is made of phenolic resin, the at least one reinforcing fiber layer is arranged on the upper side of the gel coat, the yarn layer is arranged on the upper side of the at least one reinforcing fiber layer, the reinforcing fiber layer and the yarn layer are connected through phenolic resin curing, the yarn layer is uniformly paved by short fiber yarns and soaked in the phenolic resin for curing, and ceramic powder is adhered to the outer layer of the short fiber yarns. According to the invention, the uppermost layer of the composite board is soaked in the phenolic resin in a way of tiling the fiber staple yarns for curing, and a layer of ceramic powder is adhered to the surface of the fiber staple yarns in an electrostatic way, so that a ceramic layer is formed on the surface of the composite board when the ceramic powder is cured at high temperature in case of fire, and the flame retardant property of the composite board is greatly improved.
Description
Technical Field
The invention relates to a composite board and a production method thereof, in particular to a flame-retardant high-strength composite board and a production method thereof, belonging to the technical field of board production.
Background
With the rapid development of the economy and the aggravation of the global pattern of the economy in China, the logistics industry is rapidly developed. The composite board has the characteristics of light weight, attractive appearance, corrosion resistance and the like, and has great advantages compared with metal material cost, so that the demand of the composite board is greatly enhanced. The composite board is generally formed by compounding a resin matrix and reinforcing fibers, and the flame retardant property of a final board finished product cannot be compared with that of a metal material due to certain flammability of the resin. Although the flame retardant performance of the whole board is improved by modifying the resin or adding the flame retardant additive at present, the flame retardant effect is still poor. Therefore, there is a need for a high strength composite sheet material with improved flame retardancy.
Disclosure of Invention
The invention aims to solve the technical problem of providing a flame-retardant high-strength composite board and a production method thereof, and the flame-retardant high-strength composite board has good flame-retardant performance.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the flame-retardant high-strength composite board is characterized in that: contain gel coat, at least one deck reinforcing fiber layer and yarn layer, the gel coat adopts phenolic resin, and at least one deck reinforcing fiber layer sets up the upside at the gel coat, and the yarn layer sets up the upside on at least one deck reinforcing fiber layer, passes through phenolic resin solidification connection between reinforcing fiber layer and the yarn layer, and the yarn layer is solidified and outer adhesion ceramic powder of fibre short yarn in phenolic resin by the even tiling impregnation of fibre short yarn on the yarn layer.
Further, the phenolic resin is one or more of barium hydroxide catalyzed phenolic aldehyde, magnesium hydroxide catalyzed phenolic aldehyde or aniline catalyzed phenolic resin.
Furthermore, a toughening agent, a flame retardant and a thickening additive are arranged in the phenolic resin, wherein the toughening agent accounts for 10-15% of the weight of the phenolic resin, the flame retardant accounts for 5-10% of the weight of the phenolic resin, and the thickening additive accounts for 5-8% of the weight of the phenolic resin.
Furthermore, the toughening agent adopts one or more of nano nitrile rubber, nano organic silicon and acrylic resin.
Further, the flame retardant adopts one or more of aluminum hydroxide, magnesium hydroxide and melamine.
Further, mica powder or silica powder is adopted as the thickening additive.
Further, the reinforcing fibers of the reinforcing fiber layer comprise one or more of glass fibers, basalt fibers, carbon fibers and polyester fibers.
Furthermore, the reinforced fiber layer adopts glass fiber fabric, and the glass fiber fabric comprises one or more of glass fiber chopped strand mat, glass fiber plain cloth, glass fiber twill cloth and glass fiber axial cloth.
Further, the ceramic powder is one or more of alumina, zirconia, silicon carbide, aluminum nitride and silicon nitride.
The production method of the flame-retardant high-strength composite board is characterized by comprising the following steps of:
s1, preparing a phenolic resin matrix according to 100 parts by mass of phenolic resin, 10-15 parts by mass of a toughening agent, 5-10 parts by mass of a flame retardant and 5-8 parts by mass of a thickening additive;
s2, carrying high-voltage static electricity on the fiber short yarn through high-voltage static equipment, and spraying ceramic powder on the surface of the fiber short yarn to enable the surface of the fiber short yarn to be adhered with the ceramic powder;
s3, blade-coating a layer of phenolic resin matrix on the continuously rolling flat plastic film to form a layer of gel coat, and then carrying out primary curing through a heating curing oven with the set temperature of 80-150 ℃;
s4, adding a phenolic resin matrix on the upper side of the gel coat after the initial curing, and then sequentially dipping at least one reinforcing fiber layer in the phenolic resin from bottom to top for infiltration;
s5, adhering fiber staple yarns of ceramic powder to the surface of the upper layer of the reinforced fiber layer according to the thickness requirement of the final plate, and performing up-down rolling to enable the fiber staple yarns to be soaked into the phenolic resin matrix;
and S6, sending the board into a curing furnace for integral curing treatment to obtain the flame-retardant high-strength composite board.
Compared with the prior art, the invention has the following advantages and effects: according to the invention, the uppermost layer of the composite board is soaked in phenolic resin in a way of tiling the fiber staple yarns for curing, and a layer of ceramic powder is adhered to the surface of the fiber staple yarns in an electrostatic way; in addition, the process of adhering the ceramic powder to the surface of the fiber staple yarns is adopted, compared with the mode of directly doping in a resin matrix, the ceramic powder is not directly added into the resin, the strength and the performance of the resin are not influenced, in addition, the ceramic powder consumption is less through the fiber staple yarn adhering mode, the ceramic powder can occupy the whole yarn layer, and the good flame retardant effect is still achieved on the premise of saving the cost; the flame retardant property and the mechanical property of the phenolic resin are enhanced by improving the formula of the phenolic resin matrix.
Drawings
Fig. 1 is a schematic view of a flame-retardant high-strength composite board according to the present invention.
Detailed Description
To elaborate on technical solutions adopted by the present invention to achieve predetermined technical objects, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, it is obvious that the described embodiments are only partial embodiments of the present invention, not all embodiments, and technical means or technical features in the embodiments of the present invention may be replaced without creative efforts, and the present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.
As shown in fig. 1, the flame-retardant high-strength composite board comprises a gel coat 1, at least one reinforcing fiber layer 2 and a yarn layer 3, wherein the gel coat 1 is made of phenolic resin, the at least one reinforcing fiber layer 2 is arranged on the upper side of the gel coat 1, the yarn layer 3 is arranged on the upper side of the at least one reinforcing fiber layer 2, the reinforcing fiber layer 2 and the yarn layer 3 are connected through curing of the phenolic resin, the yarn layer 3 is formed by uniformly spreading and impregnating fiber staple yarns in the phenolic resin for curing, and ceramic powder is adhered to the outer layer of the fiber staple yarns. The ceramic powder is adhered by electrostatic adhesion, and if necessary, adhesive can be sprayed on the surface of the fiber staple yarn to enhance the adhesion of the ceramic powder.
Specifically, in the embodiment of the present invention, the phenolic resin is one or more of barium hydroxide catalyzed phenolic aldehyde, magnesium hydroxide catalyzed phenolic aldehyde, or aniline catalyzed phenolic aldehyde resin. The phenolic resin is internally provided with a toughening agent, a flame retardant and a thickening additive, wherein the toughening agent accounts for 10-15% of the weight of the phenolic resin, the flame retardant accounts for 5-10% of the weight of the phenolic resin, and the thickening additive accounts for 5-8% of the weight of the phenolic resin. The flame retardant property and the mechanical property of the phenolic resin are enhanced by improving the formula of the phenolic resin matrix.
The toughening agent adopts one or more of nanometer nitrile rubber, nanometer organic silicon and acrylic resin. The flame retardant is one or more of aluminum hydroxide, magnesium hydroxide and melamine. The thickening additive adopts mica powder or silicon dioxide powder.
The reinforcing fibers of the reinforcing fiber layer 2 include one or more of glass fibers, basalt fibers, carbon fibers and polyester fibers. The reinforced fiber layer 2 adopts glass fiber fabric, and the glass fiber fabric comprises one or more of glass fiber chopped strand mat, glass fiber plain cloth, glass fiber twill cloth and glass fiber axial cloth. Different types of fabric forms can achieve different reinforcing effects, and can be adjusted according to the use purpose of the composite board in specific implementation.
The ceramic powder is one or more of alumina, zirconia, silicon carbide, aluminum nitride and silicon nitride. The ceramic powder can be solidified into ceramic solid in a high-temperature combustion environment, and the ceramic solid has good flame-retardant and corrosion-resistant performances, so that the flame-retardant performance of the composite board can be greatly improved. And a firm ceramic solid is formed after combustion, so that the leakage of internal materials caused by cracking of the composite board at high temperature can be avoided.
A production method of a flame-retardant high-strength composite board comprises the following steps:
s1, preparing a phenolic resin matrix according to 100 parts by mass of phenolic resin, 10-15 parts by mass of a toughening agent, 5-10 parts by mass of a flame retardant and 5-8 parts by mass of a thickening additive.
And S2, carrying high-voltage static electricity on the fiber staple yarns through high-voltage static equipment, and spraying ceramic powder on the surfaces of the fiber staple yarns to enable the ceramic powder to be adhered to the surfaces of the fiber staple yarns. Compared with a mode of directly doping in a resin matrix, the method for adhering the ceramic powder to the surface of the fiber spun yarn has the advantages that the ceramic powder is not directly added into resin, the strength and the performance of the resin are not influenced, the ceramic powder is less in using amount through the fiber spun yarn adhering mode, the ceramic powder can occupy the whole yarn layer, and the good flame-retardant effect is still achieved on the premise of saving the cost.
S3, coating a layer of phenolic resin matrix on the continuously rolling flat plastic film in a scraping mode to form a layer of gel coat, and then conducting primary curing through a heating curing furnace with the set temperature of 80-150 ℃.
And S4, adding a phenolic resin matrix on the upper side of the gel coat after the initial curing, and then sequentially soaking at least one reinforcing fiber layer in the phenolic resin from bottom to top for infiltration.
And S5, adhering fiber staple yarns of ceramic powder on the upper layer of the reinforced fiber layer according to the thickness requirement of the final plate, and performing up-down rolling to enable the fiber staple yarns to be soaked into the phenolic resin matrix.
And S6, feeding the composite board into a curing furnace for integral curing treatment to obtain the flame-retardant high-strength composite board.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The flame-retardant high-strength composite board is characterized in that: contain gel coat, at least one deck reinforcing fiber layer and yarn layer, the gel coat adopts phenolic resin, and at least one deck reinforcing fiber layer sets up the upside at the gel coat, and the yarn layer sets up the upside on at least one deck reinforcing fiber layer, passes through phenolic resin solidification connection between reinforcing fiber layer and the yarn layer, and the yarn layer is solidified and outer adhesion ceramic powder of fibre short yarn in phenolic resin by the even tiling impregnation of fibre short yarn on the yarn layer.
2. The flame-retardant high-strength composite board as claimed in claim 1, wherein: the phenolic resin is one or more of barium hydroxide catalyzed phenolic aldehyde, magnesium hydroxide catalyzed phenolic aldehyde or aniline catalyzed phenolic resin.
3. The flame-retardant high-strength composite board as claimed in claim 1, wherein: the phenolic resin is internally provided with a toughening agent, a flame retardant and a thickening additive, wherein the toughening agent accounts for 10-15% of the weight of the phenolic resin, the flame retardant accounts for 5-10% of the weight of the phenolic resin, and the thickening additive accounts for 5-8% of the weight of the phenolic resin.
4. The flame-retardant high-strength composite board as claimed in claim 3, wherein: the toughening agent is one or more of nano nitrile rubber, nano organic silicon and acrylic resin.
5. The flame-retardant high-strength composite board as claimed in claim 3, wherein: the flame retardant is one or more of aluminum hydroxide, magnesium hydroxide and melamine.
6. The flame-retardant high-strength composite board as claimed in claim 3, wherein: the thickening additive adopts mica powder or silicon dioxide powder.
7. The flame-retardant high-strength composite board as claimed in claim 1, wherein: the reinforcing fibers of the reinforcing fiber layer comprise one or more of glass fibers, basalt fibers, carbon fibers and polyester fibers.
8. The flame-retardant high-strength composite board as claimed in claim 7, wherein: the reinforced fiber layer adopts glass fiber fabric, and the glass fiber fabric comprises one or more of glass fiber chopped strand mat, glass fiber plain cloth, glass fiber twill cloth and glass fiber axial cloth.
9. The flame-retardant high-strength composite board as claimed in claim 1, wherein: the ceramic powder is one or more of alumina, zirconia, silicon carbide, aluminum nitride and silicon nitride.
10. A method for producing a flame-retardant high-strength composite sheet material according to any one of claims 1 to 9, characterized by comprising the steps of:
s1, preparing a phenolic resin matrix according to 100 parts by mass of phenolic resin, 10-15 parts by mass of a toughening agent, 5-10 parts by mass of a flame retardant and 5-8 parts by mass of a thickening additive;
s2, carrying high-voltage static electricity on the fiber short yarn through high-voltage static equipment, and spraying ceramic powder on the surface of the fiber short yarn to enable the surface of the fiber short yarn to be adhered with the ceramic powder;
s3, coating a layer of phenolic resin matrix on the continuously rolling flat plastic film in a scraping mode to form a layer of gel coat, and then conducting primary curing through a heating curing furnace with the set temperature of 80-150 ℃;
s4, adding a phenolic resin matrix on the upper side of the gel coat after the initial curing, and then sequentially dipping at least one reinforcing fiber layer in the phenolic resin from bottom to top for infiltration;
s5, adhering fiber staple yarns of ceramic powder to the surface of the upper layer of the reinforced fiber layer according to the thickness requirement of the final plate, and performing up-down rolling to enable the fiber staple yarns to be soaked into the phenolic resin matrix;
and S6, sending the board into a curing furnace for integral curing treatment to obtain the flame-retardant high-strength composite board.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211107649.4A CN115447249A (en) | 2022-09-13 | 2022-09-13 | Flame-retardant high-strength composite board and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211107649.4A CN115447249A (en) | 2022-09-13 | 2022-09-13 | Flame-retardant high-strength composite board and production method thereof |
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| CN115447249A true CN115447249A (en) | 2022-12-09 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1277574A (en) * | 1997-11-04 | 2000-12-20 | 材料技术股份有限公司 | Method for impregnating a fibre or filament array with powder, in particular for producing a composite material |
| CN105255101A (en) * | 2015-10-16 | 2016-01-20 | 航天材料及工艺研究所 | Impact-resistant and fireproof glass fiber reinforced phenolic aldehyde board and preparation method thereof |
| CN208646175U (en) * | 2018-07-13 | 2019-03-26 | 嘉兴新国浩喷织有限公司 | A kind of Novel fireproof chemical fiber plus material |
| CN215243397U (en) * | 2021-02-08 | 2021-12-21 | 南通中集翌科新材料开发有限公司 | High-strength high-brightness GRP mechanism flat plate |
-
2022
- 2022-09-13 CN CN202211107649.4A patent/CN115447249A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1277574A (en) * | 1997-11-04 | 2000-12-20 | 材料技术股份有限公司 | Method for impregnating a fibre or filament array with powder, in particular for producing a composite material |
| CN105255101A (en) * | 2015-10-16 | 2016-01-20 | 航天材料及工艺研究所 | Impact-resistant and fireproof glass fiber reinforced phenolic aldehyde board and preparation method thereof |
| CN208646175U (en) * | 2018-07-13 | 2019-03-26 | 嘉兴新国浩喷织有限公司 | A kind of Novel fireproof chemical fiber plus material |
| CN215243397U (en) * | 2021-02-08 | 2021-12-21 | 南通中集翌科新材料开发有限公司 | High-strength high-brightness GRP mechanism flat plate |
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