CN110202890B - Thin type cracking-resistant decorative plate - Google Patents
Thin type cracking-resistant decorative plate Download PDFInfo
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- CN110202890B CN110202890B CN201910450086.0A CN201910450086A CN110202890B CN 110202890 B CN110202890 B CN 110202890B CN 201910450086 A CN201910450086 A CN 201910450086A CN 110202890 B CN110202890 B CN 110202890B
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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
- B32B27/12—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
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/02—Layered products comprising a layer of paper or cardboard 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
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
-
- 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
- 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
- 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
- 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
- B32B2260/028—Paper 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0261—Polyamide fibres
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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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
- B32B2262/062—Cellulose fibres, e.g. cotton
- B32B2262/067—Wood fibres
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Abstract
The thin type cracking-resistant decorative plate comprises a base layer, a reinforcing layer and a decorative layer, wherein the thickness of the decorative layer is 0.07 mm-0.1 mm, and the decorative layer is impregnated with modified melamine-formaldehyde resin. The reinforcement layer is made of chemical fibers and impregnated with a modified phenolic resin. The thickness of the reinforcing layer is 0.08mm to 0.1 mm. The base layer is made of kraft paper and is impregnated with modified phenolic resin, and the thickness of the base layer is 0.1mm to 0.15 mm. The modified melamine-formaldehyde resin is modified by mixing 5-10 wt% of a modifier with reacted melamine and formaldehyde. The modifier is flexible amine D-230, the modified phenolic resin is modified by mixing 7-10 wt% of plasticizer and phenolic resin, and the plasticizer is phthalate. The thickness of the thin crack-resistant decorative plate is controlled to be less than 0.35mm, and no crack occurs in a dry environment or a wet environment.
Description
Technical Field
The invention relates to the technical field of plate manufacturing, in particular to a thin type cracking-resistant decorative plate.
Background
Decorative panels are used in a large number of applications in the manufacture of architectural decorations and furniture. The existing decorative board mainly takes wood as main material, but the price is very expensive, and the environment is not protected because a large amount of wood is needed to be cut down. Meanwhile, in the use process, the processes of painting, gluing and the like are needed, so that the environment is not favorable, and pollution gas can be generated.
In order to solve the problems, in the prior art, a decorative plate is formed by gumming a plurality of layers of paper, then performing hot press molding, and then attaching decorative paper to replace the existing wood plate. However, the existing decorative board is not easy to crack in dry areas or areas with alternate occurrence of damp and dry because the research on the dipping process is too little. In order to solve the technical problem, the cracking phenomenon can not occur only when the thickness of the decorative plate is increased, namely at least more than 0.7mm, in the prior art. However, such thick decorative boards will use a lot of paper, which is not favorable for cost saving and product competitiveness.
Disclosure of Invention
In view of the above, it is desirable to provide a thin crack-resistant decorative sheet that is thin and does not crack, so as to solve the above problems.
The thin type cracking-resistant decorative board comprises a base layer, an enhancement layer and a decorative layer, wherein the enhancement layer is arranged on the base layer, the decorative layer is arranged on the enhancement layer, the thickness of the decorative layer is 0.07 mm-0.1 mm, and the decorative layer is impregnated with modified melamine-formaldehyde resin. The reinforcement layer is made of chemical fibers and impregnated with a modified phenolic resin. The thickness of the reinforcing layer is 0.08mm to 0.1 mm. The base layer is made of kraft paper and is impregnated with modified phenolic resin, and the thickness of the base layer is 0.1mm to 0.15 mm. The modified melamine-formaldehyde resin is modified by mixing 5-10 wt% of a modifier with reacted melamine and formaldehyde. The modifier is flexible amine D-230, the modified phenolic resin is modified by mixing 7-10 wt% of plasticizer and phenolic resin, and the plasticizer is phthalate.
Further, the decorative layer is made of a wood fiber material.
Further, the chemical fiber is PA46 or PA 66.
Further, the phthalate is dibutyl phthalate.
Further, the thickness of the thin cracking-resistant decorative plate is less than or equal to 0.35 mm.
Further, the weight percentage of the flexible amine D-230 is 8%.
Further, the weight percentage of the phthalate was 9%.
Further, the thin type cracking-resistant decorative plate is formed through a hot pressing process.
Compared with the prior art, the thin type cracking-resistant decorative plate provided by the invention has the advantages that the thickness of the thin type cracking-resistant decorative plate is controlled to be less than 0.35mm through the selection of the materials used for the base layer, the reinforcing layer and the decorative layer and the design of the immersion liquid, and the thin type cracking-resistant decorative plate can not crack in a dry environment or a wet environment.
Detailed Description
Specific examples of the present invention will be described in further detail below. It should be understood that the specific embodiments described herein are illustrative only and are not limiting upon the scope of the invention.
The thin type cracking-resistant decorative plate comprises a base layer, an enhancement layer and a decorative layer, wherein the enhancement layer is arranged on the base layer, and the decorative layer is arranged on the enhancement layer. The base layer is made of kraft paper. In particular the base layer may comprise a plurality of layers of kraft paper, which are then impregnated with the modified phenolic resin. Because the thickness of the thin crack-resistant decorative plate is limited, namely the thickness of the whole thin crack-resistant decorative plate is less than or equal to 0.35mm, the thickness of the base layer should be set between 0.1mm and 0.15mm, otherwise the thickness of other structural layers, such as the reinforcing layer and the decorative layer, is influenced. When the thickness of the base layer is 0.1mm to 0.15mm, the base layer is not cracked, and therefore, improvement of the impregnation liquid is a necessary condition for achieving the purpose. The impregnating solution used for impregnating the base layer is modified phenolic resin. The modified phenolic resin is modified by mixing 7-10 wt% of plasticizer and phenolic resin. The plasticizer is phthalate. The phenolic resin is also called bakelite, also called bakelite powder, is a colorless or tawny transparent substance which is weak acid and weak alkali resistant, and is generated by phenol and formaldehyde through polycondensation reaction under the action of an acidic or alkaline catalyst. In modifying the phenolic resin, the modifier used is a plasticizer, and the plasticizer is a phthalate. The phthalate ester, also known as phthalate ester, is a generic name of ester formed by phthalic acid, and is mainly used for polyvinyl chloride materials, so that polyvinyl chloride is changed from hard plastic into elastic plastic, and the polyvinyl chloride material plays a role of a plasticizer. In the present invention, the content of the phthalate ester should be strictly controlled and must be 7 to 10% by weight, preferably 9% by weight. Due to the nature of the phthalic acid, if the amount used is too large, the strength requirements of the thin crack-resistant decorative sheet cannot be met, even with the function of the additional layer. If the using amount is too small, the requirement of the flexibility of the thin type cracking-resistant decorative plate can not be met, namely the purpose of no cracking can not be achieved. Therefore, the phenolic resin is modified by the phthalate, so that the base layer impregnated with the kraft paper keeps the strength of the base layer and has proper flexibility, thereby being beneficial to achieving the purpose of preventing the thin cracking-resistant decorative board from cracking.
The reinforcement layer is made of chemical fibers. The chemical fiber may be PA46 or PA 66. When the reinforcing layer is disposed on the base layer, the chemical fibers should be impregnated with the modified phenolic resin first. The modified phenolic resin used for impregnating the reinforcing layer is the same as the modified phenolic resin used for impregnating the base layer, and the details are not repeated. Due to the existence of the chemical fiber, the flexibility of the thin crack-resistant decorative plate can be enhanced, and cracking is avoided. But due to the limitation of the total thickness, the thickness of the reinforcing layer should be 0.08mm to 0.1 mm. Therefore, in order to meet the requirement of the thickness, the content of the plasticizer in the modified phenolic resin must be controlled to be 7-10%, otherwise, the performance requirement of the modified phenolic resin, namely, the requirement of ensuring the strength and the flexibility to avoid cracking cannot be met.
The decorative layer can be made of any wood fiber such as paper used as decorative material, and various patterns meeting the requirements of users are arranged on the decorative layer to meet the requirements of users on beauty. The decorative layer is impregnated with a modified melamine-formaldehyde resin. The modified melamine-formaldehyde resin is modified by mixing 5-10 wt% of a modifier with reacted melamine and formaldehyde. The modifier is flexible amine D-230. The flexible amine D-230, also called polyether amine (PEA), is a polymer with a polyether structure as a main chain and an amine group as a terminal active functional group, and is obtained by ammoniating polyethylene glycol, polypropylene glycol or ethylene glycol/propylene glycol copolymer at high temperature and high pressure. In the present invention, the flexible amine D-230 is used as a flexible curing agent. The melamine and formaldehyde are per se a prior art and are not described in detail here. When the melamine reacts with formaldehyde, a melamine formaldehyde resin is formed. The melamine formaldehyde resin is infusible thermosetting resin, has high temperature resistance, inertia and high activity, and belongs to activated alumina; porosity; high hardness and good dimensional stability. When the melamine formaldehyde resin is modified with the flexible amine D-230, the mixture will not only have the properties of the melamine formaldehyde resin itself, but also have good flexibility. However, due to the limitation of the total thickness of the thin crack-resistant decorative board, the thickness of the decorative layer is only 0.07mm to 0.1mm, so in order to balance the strength and flexibility of the decorative layer, the modified melamine-formaldehyde resin is modified by mixing 5 to 10 weight percent of modifier with the reacted melamine and formaldehyde, thereby obtaining the strength and flexibility of the decorative layer suitable for the thin crack-resistant decorative board with the thickness size. In this example, the weight percentage of the flexible amine D-230 is 8%.
After the base layer, the enhancement layer and the decorative layer are respectively impregnated, the base layer, the enhancement layer and the decorative layer are put into a hot press and are formed through a hot pressing procedure, and the thin type cracking-resistant decorative plate can be manufactured. The thickness of the manufactured thin crack-resistant decorative plate is less than or equal to 0.35 mm.
The following are test methods and test results.
Firstly, the surface cold and hot cycle resistance test is carried out, which is used for testing the resistance of the thin type cracking-resistant decorative plate to the repeated change of temperature, and the test instrument and the material comprise:
the air-blast drying box can keep the temperature at 80 ℃;
the refrigerator can keep the temperature at 25 ℃ below zero;
ethanol, volume fraction 95, technical grade;
absorbent gauze.
The test process comprises the following steps: and (3) dipping a little ethanol in absorbent gauze to wipe the surface of the thin type cracking-resistant decorative plate and drying. The test piece was placed in a drying oven at 80 ℃ and treated for 120 minutes, and then treated in a refrigerator at-20 ℃ for 120 minutes as one cycle, and after 2 cycles, it was left at room temperature for 1 hour or more.
And finally, observing the surface condition of the thin type cracking-resistant decorative plate from any angle by normal vision under natural light.
And secondly, carrying out a surface crack resistance test for testing whether the thin crack-resistant decorative plate has cracks at the temperature of 70 ℃. The test apparatus and materials include:
the air-blast drying box can keep the temperature at 70 ℃;
a hand-held magnifier, 6 times of magnification;
the illumination device has an illuminance of 800lx to 1000 lx.
And (3) putting the thin anti-cracking decorative plate into an air drying box for heating for 24 hours, taking out the thin anti-cracking decorative plate, and placing the thin anti-cracking decorative plate for 24 hours in an environment with the temperature of 23 ℃ and the humidity of 50%.
And observing the surface of the test piece from any angle by normal vision under natural light, and observing the surface of the thin anti-cracking decorative plate under a magnifying lens with 6 times of magnification under an illumination device with the illumination intensity of 800 lx-1000 lx.
Test results
Compared with the prior art, the thin type cracking-resistant decorative plate provided by the invention has the advantages that the thickness of the thin type cracking-resistant decorative plate is controlled to be less than 0.35mm through the selection of the materials used for the base layer, the reinforcing layer and the decorative layer and the design of the immersion liquid, and the thin type cracking-resistant decorative plate can not crack in a dry environment or a wet environment.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a thin resistant fracture decorative board which characterized in that: the thin type crack-resistant decorative plate comprises a base layer, an enhancement layer and a decorative layer, wherein the enhancement layer is arranged on the base layer, the decorative layer is arranged on the enhancement layer, the thickness of the decorative layer is 0.07mm to 0.1mm, the decorative layer is impregnated with modified melamine-formaldehyde resin, the enhancement layer is made of chemical fibers and is impregnated with modified phenolic resin, the thickness of the enhancement layer is 0.08mm to 0.1mm, the base layer is made of kraft paper and is impregnated with modified phenolic resin, the thickness of the base layer is 0.1mm to 0.15mm, the modified melamine-formaldehyde resin is modified by mixing 5 weight percent to 10 weight percent of modifier with reacted melamine and formaldehyde, the modifier is flexible amine D-230, and the modified phenolic resin is modified by mixing 7 weight percent to 10 weight percent of plasticizer and phenolic resin, the plasticizer is phthalate.
2. The thin crack resistant decorative sheet of claim 1, wherein: the decorative layer is made of a wood fiber material.
3. The thin crack resistant decorative sheet of claim 1, wherein: the chemical fiber is PA46 or PA 66.
4. The thin crack resistant decorative sheet of claim 1, wherein: the phthalate is dibutyl phthalate.
5. The thin crack resistant decorative sheet of claim 1, wherein: the thickness of the thin cracking-resistant decorative plate is less than or equal to 0.35 mm.
6. The thin crack resistant decorative sheet of claim 1, wherein: the weight percentage of the flexible amine D-230 is 8%.
7. The thin crack resistant decorative sheet of claim 1, wherein: the weight percentage of the phthalate ester is 9%.
8. The thin crack resistant decorative sheet of claim 1, wherein: the thin type cracking-resistant decorative plate is formed through a hot pressing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910450086.0A CN110202890B (en) | 2019-05-28 | 2019-05-28 | Thin type cracking-resistant decorative plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910450086.0A CN110202890B (en) | 2019-05-28 | 2019-05-28 | Thin type cracking-resistant decorative plate |
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| Publication Number | Publication Date |
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| CN110202890A CN110202890A (en) | 2019-09-06 |
| CN110202890B true CN110202890B (en) | 2021-04-20 |
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| CN201910450086.0A Active CN110202890B (en) | 2019-05-28 | 2019-05-28 | Thin type cracking-resistant decorative plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113352710B (en) * | 2021-07-21 | 2022-07-15 | 今创集团股份有限公司 | Composite decorative board for bending deformation |
| CN113619245B (en) * | 2021-07-21 | 2023-06-09 | 今创集团股份有限公司 | High-strength composite decoration panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100579841B1 (en) * | 1998-12-08 | 2006-05-12 | 주식회사 엘지화학 | Melamine-sheet laminated floor board and method of manufacturing the same |
| CN103171211B (en) * | 2013-03-12 | 2015-05-20 | 河南永威安防股份有限公司 | Granulation-free ecological plate high-pressure decorative surface material and manufacturing method thereof |
| CN107629403B (en) * | 2017-10-09 | 2020-04-10 | 四川大学 | Preparation method and application of low-formaldehyde-release soft melamine formaldehyde foam |
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