CN111038030A - Tung oil modified phenolic epoxy glass cloth coated base light-shielding single-sided copper-clad plate - Google Patents
Tung oil modified phenolic epoxy glass cloth coated base light-shielding single-sided copper-clad plate Download PDFInfo
- Publication number
- CN111038030A CN111038030A CN201911253536.3A CN201911253536A CN111038030A CN 111038030 A CN111038030 A CN 111038030A CN 201911253536 A CN201911253536 A CN 201911253536A CN 111038030 A CN111038030 A CN 111038030A
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- China
- Prior art keywords
- alkali
- free glass
- glass fiber
- fiber cloth
- clad plate
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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
- 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
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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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
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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
- 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
Abstract
The invention discloses a tung oil modified novolac epoxy glass cloth-coated light-shielding single-sided copper-clad plate, and relates to the technical field of copper-clad plates. The copper-clad plate is formed by sequentially compounding a copper foil layer, a second alkali-free glass fiber cloth layer, a first alkali-free glass fiber cloth layer, a wood fiber base layer and another first alkali-free glass fiber cloth layer from top to bottom, wherein the wood fiber base layer, a group of first alkali-free glass fiber cloth layers and the second alkali-free glass fiber cloth layers are impregnated with tung oil modified phenolic epoxy resin. According to the invention, the wood fiber base layer, the first alkali-free glass fiber cloth layer and the second alkali-free glass fiber cloth layer are impregnated with the tung oil modified novolac epoxy resin, so that the copper-clad plate has a good light shielding effect, the impact resistance, the heat resistance and the corrosion resistance are improved, and the first alkali-free glass fiber cloth layer and the second alkali-free glass fiber cloth layer can be matched to adsorb more tung oil modified novolac epoxy resin, so that the copper-clad plate has a better light shielding effect.
Description
Technical Field
The invention belongs to the technical field of copper-clad plates, and particularly relates to a tung oil modified novolac epoxy glass cloth coated light-shielding single-sided copper-clad plate.
Background
The copper-clad plate is a basic material of various electronic equipment, instruments and meters and circuit boards. The method is widely applied to the manufacture of various electronic products, such as electronic toys, electronic clocks, remote controllers, color televisions, VCDs, DVDs, home stereos and the like. The copper-clad plate is often used as a substrate of a printed circuit board of outdoor electronic equipment, but because the ultraviolet radiation is strong, a black coating needs to be sprayed on the surface of the copper-clad plate to shield the ultraviolet rays, and the copper-clad plate manufactured by the method has short service time and cannot meet the actual production and use requirements.
The existing light-shielding single-sided copper-clad plate has poor stability and impact resistance when in use, so that a light-shielding coating on the surface of the copper-clad plate is easy to fall off, and the light-shielding coating has poor heat resistance and corrosion resistance when in use, so that the copper-clad plate and a joint of the copper-clad plate are easy to separate and curl, the normal use of the light-shielding single-sided copper-clad plate and the shielding effect on ultraviolet rays are further influenced, and the printing and the production of a.
Disclosure of Invention
The invention aims to provide a tung oil modified novolac epoxy glass cloth-coated light-shielding single-sided copper-clad plate, which is characterized in that tung oil modified novolac epoxy resin is impregnated on a wood fiber base layer, a group of first alkali-free glass fiber cloth layers and a second alkali-free glass fiber cloth layer, so that the copper-clad plate has good light-shielding effect, and the impact resistance, the heat resistance and the corrosion resistance are all improved, and the problems that the existing light-shielding single-sided copper-clad plate has poor impact resistance, poor heat resistance and poor corrosion resistance, a light-shielding coating on the surface of the copper-clad plate is easy to fall off, and the copper-clad plate is easy to.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a tung oil modified phenolic epoxy glass cloth laminated base light shielding single-sided copper-clad plate which is formed by sequentially compounding a copper foil layer, a second alkali-free glass fiber cloth layer, a first alkali-free glass fiber cloth layer, a wood fiber base layer and another first alkali-free glass fiber cloth layer from top to bottom, wherein the wood fiber base layer, a group of first alkali-free glass fiber cloth layers and the second alkali-free glass fiber cloth layers are impregnated with tung oil modified phenolic epoxy resin.
Further, the pore size of the second alkali-free glass fiber cloth layer is 2-4 times larger than that of the first alkali-free glass fiber cloth layer.
Furthermore, the wood fiber base layer is formed by compounding a plurality of wood fiber boards and an aluminum substrate, and the aluminum substrate is located in the middle of the wood fiber base layer.
The invention has the following beneficial effects:
the invention is characterized in that wood fiber base layer, a group of first alkali-free glass fiber cloth layer and a second alkali-free glass fiber cloth layer are impregnated with tung oil modified phenolic epoxy resin, so that the copper-clad plate has improved impact resistance, heat resistance and corrosion resistance on the basis of good light shielding effect, thereby the copper clad laminate structure is more stable, and simultaneously the first alkali-free glass fiber cloth layer and the second alkali-free glass fiber cloth layer on the upper layer of the wood fiber base layer can better absorb the tung oil modified novolac epoxy resin, thereby the copper clad laminate has longer service life, the copper-clad plate has better shielding effect on ultraviolet rays, so that the copper-clad plate can better meet the market demand, the problems of poor impact resistance, heat resistance and corrosion resistance of the existing light-shielding single-sided copper-clad plate are solved, so that the surface light shielding coating of the copper-clad plate is easy to fall off, and the joint of the copper-clad plate and the copper-clad plate is easy to separate and curl.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a tung oil modified novolac epoxy glass cloth-coated light-shielding single-sided copper-clad plate of the invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-wood fiber base layer, 2-first alkali-free glass fiber cloth layer, 3-second alkali-free glass fiber cloth layer and 4-copper foil layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the invention is a tung oil modified phenolic epoxy glass cloth laminated base light-shielding single-sided copper-clad plate, which is prepared from a copper foil layer 4, a second alkali-free glass fiber cloth layer 3, a first alkali-free glass fiber cloth layer 2, a wood fiber base layer 1 and another first alkali-free glass fiber cloth layer 2 from top to bottom in sequence by a gum dipping hot-pressing process, wherein the hot-pressing temperature is 100-180 ℃, the pressure is 200-300pis, and the wood fiber base layer 1, a group of first alkali-free glass fiber cloth layers 2 and the second alkali-free glass fiber cloth layers 3 are dipped with tung oil modified phenolic epoxy resin, and the preparation method comprises the following steps: firstly, mixing tung oil and phenol, and reacting under the action of an acid catalyst and water bath heating to prepare TAP;
adding formaldehyde into TAP, reacting under the action of an acid catalyst and water bath heating, and cooling to prepare TMP;
adding excessive ECH into TMP, stirring uniformly, heating in water bath, gradually dropping alkali liquor, continuing heating in water bath, reacting for a period of time, and cooling to obtain a precipitate, namely the tung oil modified phenolic epoxy resin;
then compounding a wood fiber base layer 1, a group of first alkali-free glass fiber cloth layers 2 and a second alkali-free glass fiber cloth layer 3 in sequence by using a gumming hot pressing process, then carrying out a gumming treatment on the tung oil modified novolac epoxy resin to enable the tung oil modified novolac epoxy resin to be uniformly attached to a composite piece of the wood fiber base layer 1, the group of first alkali-free glass fiber cloth layers 2 and the second alkali-free glass fiber cloth layers 3, and finally compounding a copper foil layer 4 with the composite piece of the wood fiber base layer 1, the group of first alkali-free glass fiber cloth layers 2 and the second alkali-free glass fiber cloth layers 3 by using the gumming hot pressing process again to prepare the tung oil modified novolac epoxy glass cloth composite base light-shielding single-sided copper-clad plate;
the shielding rate of the prepared tung oil modified phenolic epoxy glass cloth-coated light-shielding single-sided copper-clad plate on ultraviolet rays reaches more than 99 percent.
As shown in fig. 1, the pore size on the second alkali-free glass fiber cloth layer 3 is 2-4 times of the pore size on the first alkali-free glass fiber cloth layer 2, so that the gap between the first alkali-free glass fiber cloth layer 2 and the second alkali-free glass fiber cloth layer 3 is increased and enlarged, and the first alkali-free glass fiber cloth layer 2 and the second alkali-free glass fiber cloth layer 3 are favorable for better adsorbing tung oil modified phenolic epoxy resin, so that the adhesion thickness of the tung oil modified phenolic epoxy resin is increased, the service life of the copper-clad plate is longer, and the ultraviolet shielding effect is better.
Wherein as shown in fig. 1, wood fiber base 1 is formed by four wood fiber boards and aluminium base board complex, aluminium base board is located wood fiber base intermediate position, adopt compound mode preparation wood fiber base 1, can make wood fiber base 1's shock resistance better, the resistance to pressure is stronger, thereby make this copper-clad plate structure more stable, setting up of aluminium base board makes the inside resistance to pressure of this copper-clad plate further strengthen, and make this copper-clad plate have good heat conductivity, thereby make the copper-clad plate be difficult to take place local separation because of the high temperature and curl, an aluminium base board opposite flank is frosted surface, this makes aluminium base board inseparabler when compound with wood fiber board, and more stable.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (3)
1. The tung oil modified phenolic epoxy glass cloth-coated light-shielding single-sided copper-clad plate is characterized in that: the copper-clad plate is formed by compounding a copper foil layer (4), a second alkali-free glass fiber cloth layer (3), a first alkali-free glass fiber cloth layer (2), a wood fiber base layer (1) and another first alkali-free glass fiber cloth layer (2) from top to bottom in sequence, and tung oil modified phenolic epoxy resin is impregnated on the wood fiber base layer (1), a group of first alkali-free glass fiber cloth layers (2) and the second alkali-free glass fiber cloth layer (3).
2. The tung oil modified novolac epoxy glass cloth-based light-shielding single-sided copper-clad plate according to claim 1, wherein the pore size on the second alkali-free glass fiber cloth layer (3) is 2-4 times larger than that on the first alkali-free glass fiber cloth layer (2).
3. The tung oil modified phenolic epoxy glass cloth-coated light-shielding single-sided copper-clad plate according to claim 1, wherein the wood fiber base layer (1) is formed by compounding a plurality of wood fiber plates and an aluminum substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911253536.3A CN111038030A (en) | 2019-12-09 | 2019-12-09 | Tung oil modified phenolic epoxy glass cloth coated base light-shielding single-sided copper-clad plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911253536.3A CN111038030A (en) | 2019-12-09 | 2019-12-09 | Tung oil modified phenolic epoxy glass cloth coated base light-shielding single-sided copper-clad plate |
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| Publication Number | Publication Date |
|---|---|
| CN111038030A true CN111038030A (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911253536.3A Withdrawn CN111038030A (en) | 2019-12-09 | 2019-12-09 | Tung oil modified phenolic epoxy glass cloth coated base light-shielding single-sided copper-clad plate |
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| CN (1) | CN111038030A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481505A (en) * | 2021-07-07 | 2021-10-08 | 南京科技职业学院 | Blind plate manufacturing method |
-
2019
- 2019-12-09 CN CN201911253536.3A patent/CN111038030A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481505A (en) * | 2021-07-07 | 2021-10-08 | 南京科技职业学院 | Blind plate manufacturing method |
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Application publication date: 20200421 |
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