A corrugated furniture decorative film and its preparation method

Abstract

The present invention provides a embossed furniture decorative film and a preparation method thereof. The embossed furniture decorative film uses PBT as the main material, and PETG material is mixed therein, which can significantly improve the mechanical properties of the decorative film, etc. In addition, a flame retardant with a high silicon content and containing four aromatic rings is added, which can significantly improve the flame retardant performance of the decorative film, etc. In addition, the embossed furniture decorative film described in the present invention also contains a silane coupling agent, which can promote the coupling of the flame retardant and titanium dioxide with the polymer material, so that the flame retardant and titanium dioxide can be better dispersed in the film material and form a network structure, thereby further improving the mechanical properties of the film material, etc. In addition, the embossed furniture decorative film described in this application also contains an antibacterial agent, which can not only play an antibacterial role, but also act as a stabilizer to further improve the service life of the embossed furniture decorative film, etc.

Description

Technical Field

[0001] The invention belongs to the technical field of decorative films, and in particular relates to an embossed furniture decorative film and a preparation method thereof. Background Art

[0002] With the improvement of people's living standards, the surface decoration materials industry has also ushered in opportunities for rapid development, especially film materials, such as PVC film, PET film and composite film. These materials have become the leading force in the new surface decoration materials market due to their simple production process, rich and diverse surface decoration patterns and effects, convenient use and high cost performance. It is widely used in many fields such as interior and furniture decoration, decoration industry, aircraft interior decoration, ship interior decoration, etc. These films can not only improve the hardness of the surface of the decorated object, prevent damage caused by artificial scratches, abrasions or bumps, thereby effectively extending the service life of the decorated object, but also give the decorated object the characteristics of high temperature resistance, prevent surface burns, etc. However, during the use of these films, some products have insufficient mechanical strength, are prone to breakage when subjected to external forces, cannot withstand a certain load or tension, are prone to aging and damage, and reduce the service life of the product, etc., and some decorative films have good mechanical strength, but their flame retardancy is poor, there are safety hazards, or they do not have antibacterial properties, which will cause health risks during use and cannot be used for a long time, etc. Therefore, it is necessary to develop a new embossed furniture decorative film with both flame retardancy and antibacterial properties and a preparation method thereof. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides an embossed furniture decorative film and a preparation method thereof. The embossed furniture decorative film provided by the present invention not only has very good mechanical properties, but also has very good flame retardant and antibacterial properties.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] The present invention provides an embossed furniture decorative film, wherein the material of the embossed furniture decorative film comprises PBT resin powder, PETG resin powder, plasticizer, stabilizer, titanium dioxide, flame retardant Bactericide and silane coupling agent; wherein R are each independently selected from C1-C10 hydrocarbon groups;

[0006] Further, the plasticizer includes one or more of isosorbide dioctanoate, dioctyl phthalate, dioctyl terephthalate, acetyl tributyl citrate, and diisononyl cyclohexane-1,2 dicarboxylate;

[0007] Further, the stabilizer includes one or more of (1,1 - di - tert - butyl) - 4 - hydroxyphenyl)methyl)ethyl phosphonate, organotin stabilizer, organoantimony stabilizer, calcium stearate, and zinc stearate;

[0008] Further, each R independently selected from C1 - C6 alkyl groups, preferably, each R independently selected from methyl, ethyl, propyl, isopropyl;

[0009] Further, the titanium dioxide is selected from one or more of rutile titanium dioxide and anatase titanium dioxide, preferably rutile titanium dioxide;

[0010] Further, the fungicide includes one or more of silver thiocyanate, silver oxide, silver sulfate, silver chloride, silver bromide, silver iodide, silver C10 - C20 fatty acids; preferably, the fungicide is selected from one or more of silver stearate, silver palmitate, silver myristate, silver linoleate, silver laurate;

[0011] Further, the silane coupling agent includes one or more of KH550, KH560, KH570, KH792, DL602.

[0012] Further, by weight, it includes: 100 parts of PBT resin powder, 1 - 20 parts of PETG resin powder, 10 - 30 parts of plasticizer, 1 - 3 parts of stabilizer, 3 - 7 parts of titanium dioxide, 3 - 7 parts of flame retardant, 0.5 - 1.5 parts of fungicide, 2 - 4 parts of silane coupling agent.

[0013] Further, by weight, it includes: 100 parts of PBT resin powder, 5 - 15 parts of PETG resin powder, 15 - 25 parts of plasticizer, 1 - 3 parts of stabilizer, 4 - 6 parts of titanium dioxide, 4 - 6 parts of flame retardant, 0.8 - 1.2 parts of fungicide, 2 - 4 parts of silane coupling agent.

[0014] The present invention also provides a method for preparing a embossed furniture decorative film, the preparation method comprising the following steps:

[0015] Step (1) Mixing ingredients: Take PBT resin powder, PETG resin powder, plasticizer, stabilizer, titanium dioxide, flame retardant fungicide, mix evenly, then add silane coupling agent, and mix evenly to obtain the ingredients; wherein, each R independently selected from C1 - C10 hydrocarbon groups;

[0016] Step (2) Kneading treatment: Feed the ingredients obtained in step (1) into a mixer for kneading, after kneading is completed, feed the kneaded product into an open mill for open milling to obtain the open - milled product;

[0017] Step (3) Calendering: Feed the kneaded product obtained in step (2) into a calender for calendering to obtain a film material;

[0018] Step (4) Embossing: Feed the film material obtained in step (3) into a knurling wheel for embossing, and then through cooling, an embossed furniture decorative film can be obtained.

[0019] Further, in step (1), the plasticizer includes one or more of isosorbide dioctanoate, dioctyl phthalate, dioctyl terephthalate, tributyl acetylcitrate, and diisononyl cyclohexane-1,2-dicarboxylate;

[0020] Further, the stabilizer includes one or more of (1,1-di-tert-butyl)-4-hydroxyphenyl)methyl)ethyl phosphonate, organotin stabilizer, organoantimony stabilizer, calcium stearate, and zinc stearate;

[0021] Further, each R is independently selected from C1-C6 alkyl groups, preferably, each R is independently selected from methyl, ethyl, propyl, and isopropyl;

[0022] Further, the titanium dioxide is selected from one or more of rutile titanium dioxide and anatase titanium dioxide, preferably rutile titanium dioxide;

[0023] Further, the bactericide includes one or more of silver thiocyanate, silver oxide, silver sulfate, silver chloride, silver bromide, silver iodide, and silver C10-C20 fatty acids; preferably, the bactericide is selected from one or more of silver stearate, silver palmitate, silver myristate, silver linoleate, and silver laurate;

[0024] Further, the silane coupling agent includes one or more of KH550, KH560, KH570, KH792, and DL602;

[0025] Further, by weight, the PBT resin powder is 100 parts, the PETG resin powder is 1-20 parts, the plasticizer isosorbide dioctanoate is 10-30 parts, the stabilizer is 1-3 parts, the titanium dioxide is 3-7 parts, the flame retardant is 3-7 parts, the bactericide is 0.5-1.5 parts, and the silane coupling agent is 2-4 parts;

[0026] Further, by weight, it includes: the PBT resin powder is 100 parts, the PETG resin powder is 5-15 parts, the plasticizer is 15-25 parts, the stabilizer is 1-3 parts, the titanium dioxide is 4-6 parts, the flame retardant is 4-6 parts, the bactericide is 0.8-1.2 parts, and the silane coupling agent is 2-4 parts;

[0027] Further, the specific conditions for uniform mixing are: stirring at 170 - 190 °C for 20 - 40 min.

[0028] Further, in step (2), the internal mixer temperature is 245 °C, the internal mixing time is 4 min, and the rotor speed of the internal mixer is 30 r / min;

[0029] Further, the open mill temperature is 240 °C, and the open mill time is 2 min;

[0030] Further, in step (3), the calender is a four-roll calender. In the four-roll calender, the temperature of the first roll is 245 °C, and the speed is 10 m / min; the temperature of the second roll is 245 °C, and the speed is 12 m / min; the temperature of the third roll is 180 °C, and the speed is 15 m / min; the temperature of the fourth roll is 185 °C, and the speed is 17 m / min;

[0031] Further, step (4) is specifically: feeding the film material obtained in step (3) into a knurling wheel at a speed of 21 m / min under the action of a traction wheel for embossing treatment, and then cooling through a cooling roll to obtain an embossed furniture decorative film, wherein the temperature of the knurling wheel is 95 °C.

[0032] Advantages of the present invention:

[0033] The embossed furniture decorative film provided in this application is mixed with PETG (polyethylene terephthalate - 1,4 - cyclohexanedimethanol ester) material. Since this material has outstanding toughness and high impact strength, the mechanical properties of the decorative film can be significantly improved by mixing this material in PBT, etc.; a flame retardant with a high silicon content and containing four aromatic rings is also added to the embossed furniture decorative film provided in this application, so the flame retardant performance of the decorative film can be significantly improved, etc. Since the embossed furniture decorative film described in the present invention also contains a silane coupling agent, and the silane coupling agent itself contains silicon elements, it can synergistically improve the flame retardancy of the embossed furniture decorative film, and it can also promote the coupling of the flame retardant and titanium dioxide with the polymer material, so that the flame retardant and titanium dioxide can be better dispersed in the film material and form a network structure, improving the mechanical properties of the film material, etc. In addition, the antibacterial agent used in this application is preferably an alkyl acid silver compound, and this type of compound can not only play an antibacterial role, but also act as a stabilizer to further improve the service life of the embossed furniture decorative film, etc. Specific embodiments

[0034] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. In the description of the present application, it should be understood that "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone, where A and B may be singular or plural.

[0036] Embodiment 1

[0037] This embodiment provides a embossed furniture decorative film and its preparation method. The specific steps are as follows:

[0038] (1) Mixing ingredients: Weigh 100 parts of PBT resin powder, 10 parts of PETG resin powder, 20 parts of isosorbide dioctoate as plasticizer, 2 parts of stabilizer (1,1 - di - tert - butyl - 4 - hydroxyphenyl)methyl)ethyl phosphonate (i.e., Irganox 1425), 5 parts of rutile titanium dioxide, 5 parts of tetra(4 - (methyldiethoxysilyl)phenyl)silane, and 1 part of fungicide silver stearate, put them into a blender, stir at 180 °C for 30 min, then add 3 parts of silane coupling agent KH550, and continue to stir at the same temperature for 30 min to obtain a uniformly mixed ingredient.

[0039] (2) Kneading treatment: Feed the uniformly mixed ingredient obtained in step (1) into a internal mixer for kneading. Among them, the kneading temperature is 245 °C, the kneading time is 4 min, the rotor speed of the internal mixer is 30 r / min. After kneading, feed the kneaded product into a two - roll mill for rolling. Among them, the rolling temperature is 240 °C and the rolling time is 2 min.

[0040] (3) Calendering treatment: Feed the rolled product obtained in step (2) into a four - roll calender for calendering treatment. Among them, control the temperature of the first roll to be 245 °C and the speed to be 10 m / min, the temperature of the second roll to be 245 °C and the speed to be 12 m / min, the temperature of the third roll to be 180 °C and the speed to be 15 m / min, and the temperature of the fourth roll to be 185 °C and the speed to be 17 m / min.

[0041] (4) Embossing treatment: Feed the film material obtained in step (3) into a knurling wheel at a speed of 21 m / min under the action of a traction wheel for embossing treatment, and then cool it through a cooling roller to obtain an embossed furniture decorative film. Among them, the temperature of the knurling wheel is 95 °C.

[0042] Example 2

[0043] This example provides an embossed furniture decorative film and its preparation method. The specific steps are as follows:

[0044] (1) Mixing ingredients: Weigh 100 parts of PBT resin powder, 15 parts of PETG resin powder, 20 parts of isosorbide dioctanoate plasticizer, 2 parts of stabilizer (1,1 - di - tert - butyl - 4 - hydroxyphenyl) methyl) ethyl phosphonate (i.e., Irganox 1425), 5 parts of rutile titanium dioxide, 5 parts of tetra(4 - (methyldiethoxysilyl)phenyl)silane, and 1 part of silver stearate fungicide, put them into a blender, stir at 180 °C for 30 min, then add 3 parts of silane coupling agent KH550, and continue to stir while keeping warm for 30 min to obtain a uniformly mixed ingredient;

[0045] (2) Kneading treatment: Feed the uniformly mixed ingredient obtained in step (1) into a mixer for kneading. Among them, the kneading temperature is 245 °C, the kneading time is 4 min, the rotor speed of the mixer is 30 r / min. After kneading, feed the product obtained after kneading into an open mill for open milling. Among them, the open - milling temperature is 240 °C, and the open - milling time is 2 min;

[0046] (3) Calendering treatment: Feed the open - milled product obtained in step (2) into a four - roll calender for calendering treatment. Among them, control the temperature of the first roll to be 245 °C, the speed to be 10 m / min, the temperature of the second roll to be 245 °C, the speed to be 12 m / min, the temperature of the third roll to be 180 °C, the speed to be 15 m / min, and the temperature of the fourth roll to be 185 °C, the speed to be 17 m / min;

[0047] (4) Embossing treatment: Feed the film material obtained in step (3) into a knurling wheel at a speed of 21 m / min under the action of a traction wheel for embossing treatment, and then cool it through a cooling roller to obtain an embossed furniture decorative film. Among them, the temperature of the knurling wheel is 95 °C.

[0048] Example 3

[0049] This example provides an embossed furniture decorative film and its preparation method. The specific steps are as follows:

[0050] (1) Mixing ingredients: Weigh 100 parts of PBT resin powder, 5 parts of PETG resin powder, 20 parts of isosorbide dioctanoate plasticizer, 2 parts of stabilizer (1,1 - di - tert - butyl) - 4 - hydroxyphenyl)methyl)ethyl phosphonate (i.e., Irganox 1425), 5 parts of rutile titanium dioxide, 5 parts of tetra(4 - (methyldiethoxysilyl)phenyl)silane, and 1 part of fungicide silver stearate. Put them into a blender and stir at 180 °C for 30 min. Then add 3 parts of silane coupling agent KH550 and continue to stir while keeping the temperature for 30 min to obtain a uniformly mixed ingredient;

[0051] (2) Kneading treatment: Feed the uniformly mixed ingredient obtained in step (1) into an internal mixer for kneading. Among them, the kneading temperature is 245 °C, the kneading time is 4 min, the rotor speed of the internal mixer is 30 r / min. After kneading, feed the obtained product into a two - roll mill for rolling. Among them, the rolling temperature is 240 °C and the rolling time is 2 min;

[0052] (3) Calendering treatment: Feed the rolled product obtained in step (2) into a four - roll calender for calendering treatment. Among them, control the temperature of the first roll to be 245 °C, the speed to be 10 m / min, the temperature of the second roll to be 245 °C, the speed to be 12 m / min, the temperature of the third roll to be 180 °C, the speed to be 15 m / min, and the temperature of the fourth roll to be 185 °C, the speed to be 17 m / min;

[0053] (4) Embossing treatment: Feed the film material obtained in step (3) into a knurling wheel under the action of a traction wheel at a speed of 21 m / min for embossing treatment, and then cool it through a cooling roll to obtain an embossed furniture decorative film. Among them, the temperature of the knurling wheel is 95 °C.

[0054] Comparative Example 1

[0055] The difference from Example 1 is only that: replace "100 parts of PBT resin powder, 10 parts of PETG resin powder" in Example 1 with "110 parts of PBT resin powder".

[0056] Comparative Example 2

[0057] The difference from Example 1 is only that: do not add tetra(4 - (methyldiethoxysilyl)phenyl)silane, the flame retardant, in step (1).

[0058] Comparative Example 3

[0059] The difference from Example 1 is only that: do not add the silane coupling agent in step (1).

[0060] Comparative Example 4

[0061] The difference from Example 1 is only that: do not add the fungicide in step (1).

[0062] Detection and analysis

[0063] (1) Mechanical property test The tensile strength and elongation at break of the film materials prepared in Test Examples 1-3 and Comparative Examples 1-4 were tested according to the method specified for specimens in GB / T528-2009. The results are shown in Table 1;

[0064] (2) Vertical burning rating test The vertical burning rating was tested according to the method for determining the burning performance of plastics in GB / 2408-2008. The test results are shown in Table 1:

[0065] (3) Antibacterial test The antibacterial performance of the film materials prepared in Examples 1-3 and Comparative Examples 1-4 was tested by the plate counting method. The test strains were Escherichia coli (E) and Staphylococcus aureus (S). The results are shown in Table 1;

[0066] Table 1

[0067]

[0068]

[0069] In this article, specific examples are used to elaborate on the principles and implementation methods of this application. The descriptions of the above examples are only used to help understand the method and its core idea of this application; at the same time, for those skilled in the art, based on the idea of this application, there will be changes in the specific implementation methods and application scopes. To sum up, the content of this specification should not be construed as a limitation to this application. The protection scope of this invention should be subject to the scope defined by the claims. For those of ordinary skill in the art of this technology, without departing from the spirit and scope of this invention, several improvements and modifications can also be made, and these improvements and modifications should also be regarded as the protection scope of this invention. Those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A embossed furniture decorative film, characterized in that, By weight, the materials of the embossed furniture decorative film are composed of the following components: 100 parts of PBT resin powder, 1-20 parts of PETG resin powder, 10-30 parts of plasticizer, 1-3 parts of stabilizer, 3-7 parts of rutile titanium dioxide, 3-7 parts of flame retardant , 0.5-1.5 parts of fungicide, 2-4 parts of silane coupling agent; Among them, each R is independently selected from C1-C10 hydrocarbon groups; The fungicide is selected from one or more of silver C10-C20 fatty acids; The silane coupling agent includes one or more of KH550, KH560, KH570, KH792, DL602; 2. The embossed furniture decorative film according to claim 1, wherein The plasticizer includes one or more of isosorbide dioctanoate, dioctyl phthalate, dioctyl terephthalate, tributyl acetylcitrate, diisononyl cyclohexane-1,2-dicarboxylate; And / or, the stabilizer includes one or more of Irganox 1425, organotin stabilizer, organoantimony stabilizer, calcium stearate, zinc stearate; And / or, each R is independently selected from C1-C6 alkyl groups; And / or, the fungicide is selected from one or more of silver stearate, silver palmitate, silver myristate, silver linoleate, silver laurate; 3. The embossed furniture decorative film according to claim 2, wherein, The plasticizer is selected from isosorbide dioctanoate; And / or, the stabilizer is selected from Irganox 1425; Each R is independently selected from methyl, ethyl, propyl, isopropyl.

4. The embossed furniture decorative film according to any one of claims 1-3, characterized in that, By weight, it consists of the following components: 100 parts of PBT resin powder, 5-15 parts of PETG resin powder, 15-25 parts of plasticizer, 1-3 parts of stabilizer, 4-6 parts of rutile titanium dioxide, 4-6 parts of flame retardant, 0.8-1.2 parts of fungicide, 2-4 parts of silane coupling agent.

5. A preparation method of an embossed furniture decorative film, characterized in that, The preparation method includes the following steps: Step (1) Mixing ingredients: Take PBT resin powder, PETG resin powder, plasticizer, stabilizer, rutile titanium dioxide, flame retardant , bactericide, after mixing evenly, add silane coupling agent, and obtain the ingredients after mixing evenly; wherein, each R independently selects a C1-C10 hydrocarbon group; Step (2) Kneading treatment: Feed the ingredients obtained in step (1) into a mixer for kneading. After kneading, feed the product obtained after kneading into an open mill for open milling to obtain the product after open milling; Step (3) Calendering treatment: Feed the product after open milling obtained in step (2) into a calender for calendering treatment to obtain a film material; Step (4) Embossing treatment: Feed the film material obtained in step (3) into a knurling wheel for embossing treatment, and then after cooling, the embossed furniture decorative film can be obtained; Among them, by weight, the material of the embossed furniture decorative film consists of the following components: 100 parts of PBT resin powder, 1-20 parts of PETG resin powder, 10-30 parts of plasticizer, 1-3 parts of stabilizer, 3-7 parts of rutile titanium dioxide, 3-7 parts of flame retardant, 0.5-1.5 parts of fungicide, 2-4 parts of silane coupling agent; The fungicide includes one or more of silver C10-C20 fatty acids; The silane coupling agent includes one or more of KH550, KH560, KH570, KH792, DL602; 6. The preparation method of the embossed furniture decorative film according to claim 5, characterized in that, In step (1), the plasticizer includes one or more of isosorbide dioctanoate, dioctyl phthalate, dioctyl terephthalate, tributyl acetylcitrate, diisononyl cyclohexane-1,2-dicarboxylate; And / or, the stabilizer includes one or more of Irganox 1425, organotin stabilizer, organoantimony stabilizer, calcium stearate, zinc stearate; And / or, each R is independently selected from C1-C6 alkyl groups; And / or, the fungicide is selected from one or more of silver stearate, silver palmitate, silver myristate, silver linoleate, and silver laurate.

7. The preparation method of the embossed furniture decorative film according to claim 6, characterized in that, The plasticizer is selected from isosorbide dicaprylate; And / or, the stabilizer is selected from Irganox 1425; And / or, each R is independently selected from methyl, ethyl, propyl, and isopropyl; And / or, by weight, it is composed of the following components: 100 parts of the PBT resin powder, 5 - 15 parts of the PETG resin powder, 15 - 25 parts of the plasticizer, 1 - 3 parts of the stabilizer, 4 - 6 parts of the rutile titanium dioxide, 4 - 6 parts of the flame retardant, 0.8 - 1.2 parts of the fungicide, and 2 - 4 parts of the silane coupling agent; And / or, the specific conditions for uniform mixing are: stirring at 170 - 190 °C for 20 - 40 min.

8. The preparation method of the embossed furniture decorative film according to claim 5, characterized in that, In the step (2), the internal mixing temperature is 245 °C, the internal mixing time is 4 min, and the rotor speed of the internal mixer is 30 r / min; And / or, the open mill temperature is 240 °C, and the open mill time is 2 min.

9. The preparation method of the embossed furniture decorative film according to claim 5, characterized in that, In the step (3), the calender is a four-roll calender. In the four-roll calender, the temperature of the first roll is 245 °C, the speed is 10 m / min, the temperature of the second roll is 245 °C, the speed is 12 m / min, the temperature of the third roll is 180 °C, the speed is 15 m / min, and the temperature of the fourth roll is 185 °C, the speed is 17 m / min; And / or, the step (4) is specifically: feeding the film material obtained in the step (3) into a knurling wheel at a speed of 21 m / min under the action of a traction wheel for embossing treatment, and then cooling through a cooling roll to obtain an embossed furniture decorative film, wherein the temperature of the knurling wheel is 95 °C.

10. A embossed furniture decorative film, characterized in that, Prepared by the preparation method according to any one of claims 5 - 9.

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