A kind of silica gel blister film and its preparation method and application

Abstract

The present invention relates to the technical field of composite films, and in particular to a silicone blister film and a preparation method and application thereof, wherein the silicone blister film comprises a silicone layer and a polyethylene terephthalate base film which are laminated and hot-pressed and composited; the thickness of the silicone layer is 0.2-0.3 mm, and the thickness of the polyethylene terephthalate base film is 0.5 mm. The silicone blister film of the present invention adopts a polyethylene terephthalate base film to match a silicone layer, and the polyethylene terephthalate base film is matched with functional additives such as antibacterial agents and flame retardants through polyethylene terephthalate to optimize the functional effect of the film product, and the filler modifier and balancing agent added at the same time are coordinated and cooperated, and the antibacterial, wear-resistant and flame-retardant coordinated balance of the product is improved, and the corrosion resistance and cold and hot cycle stability of the product are significantly improved.

Description

Technical Field

[0001] The invention relates to the technical field of composite films, and in particular to a silica gel blister film and a preparation method and application thereof. Background Art

[0002] Blister film is a polymer material with excellent physical and chemical properties. Blister film can be widely used in electronic products, automotive interiors, etc. However, the existing blister film has poor flame retardancy, and the antibacterial and wear resistance of the product are not ideal. It is difficult for the product to achieve a coordinated balance improvement in antibacterial, wear resistance and flame retardancy, and the product has poor corrosion resistance and cold and hot cycle stability, which limits the use efficiency of the product. Based on this, the present invention further improves it. Summary of the invention

[0003] In view of the defects of the prior art, the purpose of the present invention is to provide a silicone blister film and a preparation method and application thereof, so as to solve the problems raised in the above background technology.

[0004] The present invention solves the technical problem by adopting the following technical solution:

[0005] The present invention provides a silicone blister film, comprising a silicone layer and a polyethylene terephthalate base film laminated and heat-pressed;

[0006] The thickness of the silicone layer is 0.2-0.3 mm, and the thickness of the polyethylene terephthalate base film is 0.5 mm;

[0007] The polyethylene terephthalate base film comprises the following raw materials in parts by weight:

[0008] 35-40 parts of polyethylene terephthalate, 8-12 parts of filler modifier, 6-9 parts of balancing agent, 4-6 parts of silane coupling agent KH560, 4-7 parts of antibacterial agent, 5-8 parts of flame retardant, 3-5 parts of antioxidant, and 2-4 parts of lubricant.

[0009] Preferably, the antioxidant is antioxidant 1010; the lubricant is N,N'-ethylene bisstearamide; the flame retardant is magnesium hydroxide; and the antibacterial agent is nano silver powder.

[0010] Preferably, the preparation method of the filler modifier is:

[0011] S01: Add 2-5 parts of carbon nanotubes and 1-3 parts of boron nitride to 5-8 parts of 5% sodium dodecylbenzene sulfonate solution by weight, then add 2-3 parts of silane coupling agent KH550, stir well, and obtain carbon nanotube liquid;

[0012] S02: preheating silicon dioxide at 60-65°C for 1 hour to obtain preheated silicon dioxide; immersing the preheated silicon dioxide in a sufficient amount of yttrium nitrate solution with a mass fraction of 4% and stirring it sufficiently, then filtering and drying it to obtain yttrium-doped silicon dioxide;

[0013] The yttrium-doped silica and carbon nanotube liquid are stirred at a weight ratio of 2:5, and after the stirring is completed, the mixture is filtered and dried to obtain a carbon nanotube / silicon dioxide compounding agent;

[0014] S03: 3-5 parts of silicon carbide, 2-3 parts of basalt fiber, 5-8 parts of lanthanum chloride solution and 2-3 parts of chitosan solution are fully mixed by weight to obtain a filling solution;

[0015] S04: The carbon nanotube / silicon dioxide compounding agent and the compound filling liquid are mixed in a weight ratio of 5:3, and the mixture is ball-milled at a speed of 1000 r / min for 1 h. After the ball-milling is completed, the mixture is filtered and dried to obtain a filler modifier.

[0016] Preferably, the stirring speed in S02 is 550-750 r / min, and the stirring time is 20-30 min; the average particle size of silicon dioxide is 10 nm, and the average specific surface area is 380 m 2 / g; the average particle size of carbon nanotubes is 30nm, and the average specific surface area is 380m 2 / g.

[0017] Preferably, the mass fraction of the lanthanum chloride solution is 3-6%; the mass fraction of the chitosan solution is 2-5%.

[0018] Preferably, the preparation method of the balancing agent is:

[0019] S11: adding 5 to 8 parts of nano-attapulgite and 2 to 4 parts of silicon powder to 10 to 15 parts of Tris-HCl buffer solution by weight, and then adding 3 to 5 parts of sodium carboxymethyl cellulose, stirring sufficiently to obtain a modified solution based on nano-attapulgite;

[0020] S12: ultrasonically treat the regulator and the modified liquid based on nano-attapulgite in a weight ratio of 3:5. After the ultrasonic treatment is completed, the regulator is filtered and dried to obtain the regulator.

[0021] Preferably, the pH value of the Tris-HCl buffer solution is 8-9; the ultrasonic power of the ultrasonic treatment is 400-450W, and the ultrasonic treatment is performed for 20 minutes.

[0022] Preferably, the preparation method of the regulator is:

[0023] 2-5 parts by weight of 5% sodium silicate solution, 1-3 parts of potassium feldspar and 2-4 parts of zirconium silicate are uniformly mixed, and then 3-5 parts by weight of 4% sodium lignin sulfonate solution and 1-3 parts of nano-alumina are added, and the mixture is mixed thoroughly, and finally filtered and dried to obtain a regulator.

[0024] The present invention also provides a method for preparing a silica gel blister film, comprising the following steps:

[0025] Firstly, polyethylene terephthalate, a filler modifier, a balancing agent, a silane coupling agent KH560, an antibacterial agent, a flame retardant, an antioxidant and a lubricant are fully blended, then melt-extruded at a temperature of 270°C, cast into a film, cooled to 70°C, and then biaxially stretched at a longitudinal stretching temperature of 70°C, a transverse stretching temperature of 100°C, a longitudinal stretching ratio of 2, and a transverse stretching ratio of 3.5 to obtain a polyethylene terephthalate base film, and finally the silicone layer and the polyethylene terephthalate base film are hot-pressed and composited to form a silicone blister film.

[0026] The invention also provides an application of the silica gel blister film in automobile interior decoration.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The silicone blister film of the present invention adopts a polyethylene terephthalate base film and a silicone layer. The polyethylene terephthalate base film (can be referred to as a PET base film) is combined with functional additives such as an antibacterial agent and a flame retardant by polyethylene terephthalate (PET) to optimize the functional effect of the film product. At the same time, the filler modifier and the balancing agent are added, and the two are coordinated and synergistic. The antibacterial, wear-resistant and flame-retardant coordinated balance of the product is improved, and the corrosion resistance and cold and hot cycle stability of the product are significantly improved;

[0029] The filler modifier uses carbon nanotubes in combination with boron nitride, sodium dodecylbenzene sulfonate solution and silane coupling agent KH550. The raw materials are coordinated and matched. At the same time, nano silicon dioxide is preheated and then immersed in yttrium nitrate solution for improvement. Yttrium-doped silicon dioxide is coordinated and matched with yttrium-doped silicon dioxide. The raw materials are co-matched and improved, and the composite filling liquid is further coordinated and synergistic. Silicon carbide, basalt fiber, lanthanum chloride solution and chitosan solution in the composite filling liquid are co-matched and synergistic. Basalt fiber structure is used to coordinate silicon carbide to reinforce the system, further enhancing the effect of the filler modifier in the system, optimizing the performance coordination of the system, and improving the corrosion resistance and cold and hot cycle stability of the product.

[0030] The balancing agent is made of nano-attapulgite combined with silicon powder, Tris-HCl buffer solution and sodium carboxymethyl cellulose, and the regulator is added at the same time to form a synergistic effect. The sodium silicate solution, potassium feldspar and zirconium silicate, sodium lignin sulfonate solution and nano-alumina in the regulator are formulated synergistically. The obtained regulator is formulated in a modified liquid based on nano-attapulgite to optimize the synergistic effect of the balancing agent and the filler modifier, thereby further improving the performance of the product. DETAILED DESCRIPTION

[0031] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] A silicone blister film of this embodiment includes a silicone layer and a polyethylene terephthalate base film laminated and heat-pressed;

[0033] The thickness of the silicone layer is 0.2-0.3 mm, and the thickness of the polyethylene terephthalate base film is 0.5 mm;

[0034] The polyethylene terephthalate base film comprises the following raw materials in parts by weight:

[0035] 35-40 parts of polyethylene terephthalate, 8-12 parts of filler modifier, 6-9 parts of balancing agent, 4-6 parts of silane coupling agent KH560, 4-7 parts of antibacterial agent, 5-8 parts of flame retardant, 3-5 parts of antioxidant, and 2-4 parts of lubricant.

[0036] The antioxidant in this embodiment is antioxidant 1010; the lubricant is N,N'-ethylene bisstearamide; the flame retardant is magnesium hydroxide; and the antibacterial agent is nano silver powder.

[0037] The preparation method of the filler modifier of this embodiment is:

[0038] S01: Add 2-5 parts of carbon nanotubes and 1-3 parts of boron nitride to 5-8 parts of 5% sodium dodecylbenzene sulfonate solution by weight, then add 2-3 parts of silane coupling agent KH550, stir well, and obtain carbon nanotube liquid;

[0039] S02: preheating silicon dioxide at 60-65°C for 1 hour to obtain preheated silicon dioxide; immersing the preheated silicon dioxide in a sufficient amount of yttrium nitrate solution with a mass fraction of 4% and stirring it sufficiently, then filtering and drying it to obtain yttrium-doped silicon dioxide;

[0040] The yttrium-doped silica and carbon nanotube liquid are stirred at a weight ratio of 2:5, and after the stirring is completed, the mixture is filtered and dried to obtain a carbon nanotube / silicon dioxide compounding agent;

[0041] S03: 3-5 parts of silicon carbide, 2-3 parts of basalt fiber, 5-8 parts of lanthanum chloride solution and 2-3 parts of chitosan solution are fully mixed by weight to obtain a filling solution;

[0042] S04: The carbon nanotube / silicon dioxide compounding agent and the compound filling liquid are mixed in a weight ratio of 5:3, and the mixture is ball-milled at a speed of 1000 r / min for 1 h. After the ball-milling is completed, the mixture is filtered and dried to obtain a filler modifier.

[0043] The stirring speed of S02 in this embodiment is 550-750 r / min, and the stirring time is 20-30 min; the average particle size of silicon dioxide is 10 nm, and the average specific surface area is 380 m 2 / g; the average particle size of carbon nanotubes is 30nm, and the average specific surface area is 380m 2 / g.

[0044] The mass fraction of the lanthanum chloride solution in this embodiment is 3-6%; the mass fraction of the chitosan solution is 2-5%.

[0045] The preparation method of the balancing agent of this embodiment is:

[0046] S11: adding 5 to 8 parts of nano-attapulgite and 2 to 4 parts of silicon powder to 10 to 15 parts of Tris-HCl buffer solution by weight, and then adding 3 to 5 parts of sodium carboxymethyl cellulose, stirring sufficiently to obtain a modified solution based on nano-attapulgite;

[0047] S12: ultrasonically treat the regulator and the modified liquid based on nano-attapulgite in a weight ratio of 3:5. After the ultrasonic treatment is completed, the regulator is filtered and dried to obtain the regulator.

[0048] The pH value of the Tris-HCl buffer solution in this embodiment is 8-9; the ultrasonic power of the ultrasonic treatment is 400-450W, and the ultrasonic treatment lasts for 20 minutes.

[0049] The preparation method of the regulator of this embodiment is:

[0050] 2-5 parts by weight of 5% sodium silicate solution, 1-3 parts of potassium feldspar and 2-4 parts of zirconium silicate are uniformly mixed, and then 3-5 parts by weight of 4% sodium lignin sulfonate solution and 1-3 parts of nano-alumina are added, and the mixture is mixed thoroughly, and finally filtered and dried to obtain a regulator.

[0051] A method for preparing a silicone blister film in this embodiment comprises the following steps:

[0052] Firstly, polyethylene terephthalate, a filler modifier, a balancing agent, a silane coupling agent KH560, an antibacterial agent, a flame retardant, an antioxidant and a lubricant are fully blended, then melt-extruded at a temperature of 270°C, cast into a film, cooled to 70°C, and then biaxially stretched at a longitudinal stretching temperature of 70°C, a transverse stretching temperature of 100°C, a longitudinal stretching ratio of 2, and a transverse stretching ratio of 3.5 to obtain a polyethylene terephthalate base film, and finally the silicone layer and the polyethylene terephthalate base film are hot-pressed and composited to form a silicone blister film.

[0053] This embodiment also provides an application of a silicone blister film in automobile interior decoration.

[0054] Embodiment 1: A silicone blister film, comprising a silicone layer and a polyethylene terephthalate base film laminated and heat-pressed;

[0055] The thickness of the silicone layer is 0.2 mm, and the thickness of the polyethylene terephthalate base film is 0.5 mm;

[0056] The polyethylene terephthalate base film comprises the following raw materials in parts by weight:

[0057] 35 parts of polyethylene terephthalate, 8 parts of filler modifier, 6 parts of balancing agent, 4 parts of silane coupling agent KH560, 4 parts of antibacterial agent, 5 parts of flame retardant, 3 parts of antioxidant, and 2 parts of lubricant.

[0058] The antioxidant in this embodiment is antioxidant 1010; the lubricant is N,N'-ethylene bisstearamide; the flame retardant is magnesium hydroxide; and the antibacterial agent is nano silver powder.

[0059] The preparation method of the filler modifier of this embodiment is:

[0060] S01: Add 2 parts of carbon nanotubes and 1 part of boron nitride to 5 parts of 5% sodium dodecylbenzene sulfonate solution by weight, then add 2 parts of silane coupling agent KH550, stir well, and obtain carbon nanotube liquid;

[0061] S02: preheating silicon dioxide at 60° C. for 1 h to obtain preheated silicon dioxide; immersing the preheated silicon dioxide in a sufficient amount of 4% by mass yttrium nitrate solution and stirring sufficiently, then filtering and drying to obtain yttrium-doped silicon dioxide;

[0062] The yttrium-doped silica and carbon nanotube liquid are stirred in a weight ratio of 2:5, filtered and dried after the stirring is completed to obtain a carbon nanotube / silicon dioxide compounding agent;

[0063] S03: 3 parts of silicon carbide, 2 parts of basalt fiber, 5 parts of lanthanum chloride solution and 2 parts of chitosan solution are mixed by weight to obtain a filling solution;

[0064] S04: The carbon nanotube / silicon dioxide compounding agent and the compound filling liquid are mixed in a weight ratio of 5:3, and the mixture is ball-milled at a speed of 1000 r / min for 1 h. After the ball-milling is completed, the mixture is filtered and dried to obtain a filler modifier.

[0065] The stirring speed of S02 in this embodiment is 550r / min, and the stirring time is 20min; the average particle size of silicon dioxide is 10nm, and the average specific surface area is 380m 2 / g; the average particle size of carbon nanotubes is 30nm, and the average specific surface area is 380m 2 / g.

[0066] The mass fraction of the lanthanum chloride solution in this embodiment is 3%; the mass fraction of the chitosan solution is 2%.

[0067] The preparation method of the balancing agent of this embodiment is:

[0068] S11: adding 5 parts of nano-attapulgite and 2 parts of silicon powder to 10 parts of Tris-HCl buffer solution by weight, and then adding 3 parts of sodium carboxymethyl cellulose, stirring sufficiently to obtain a modified solution based on nano-attapulgite;

[0069] S12: ultrasonically treat the regulator and the modified liquid based on nano-attapulgite in a weight ratio of 3:5. After the ultrasonic treatment is completed, the regulator is filtered and dried to obtain the regulator.

[0070] The pH value of the Tris-HCl buffer solution in this example is 8; the ultrasonic power of the ultrasonic treatment is 400 W, and the ultrasonic treatment is performed for 20 minutes.

[0071] The preparation method of the regulator of this embodiment is:

[0072] 2 parts of 5% sodium silicate solution, 1 part of potassium feldspar and 2 parts of zirconium silicate are mixed evenly by weight, and then 3 parts of 4% sodium lignin sulfonate solution and 1 part of nano alumina are added, and the mixture is mixed thoroughly, and finally filtered and dried to obtain a regulator.

[0073] A method for preparing a silicone blister film in this embodiment comprises the following steps:

[0074] Firstly, polyethylene terephthalate, a filler modifier, a balancing agent, a silane coupling agent KH560, an antibacterial agent, a flame retardant, an antioxidant and a lubricant are fully blended, then melt-extruded at a temperature of 270°C, cast into a film, cooled to 70°C, and then biaxially stretched at a longitudinal stretching temperature of 70°C, a transverse stretching temperature of 100°C, a longitudinal stretching ratio of 2, and a transverse stretching ratio of 3.5 to obtain a polyethylene terephthalate base film, and finally the silicone layer and the polyethylene terephthalate base film are hot-pressed and composited to form a silicone blister film.

[0075] This embodiment also provides an application of a silicone blister film in automobile interior decoration.

[0076] Embodiment 2: A silicone blister film, comprising a silicone layer and a polyethylene terephthalate base film laminated and heat-pressed;

[0077] The thickness of the silicone layer is 0.3 mm, and the thickness of the polyethylene terephthalate base film is 0.5 mm;

[0078] The polyethylene terephthalate base film comprises the following raw materials in parts by weight:

[0079] 40 parts of polyethylene terephthalate, 12 parts of filler modifier, 9 parts of balancing agent, 6 parts of silane coupling agent KH560, 7 parts of antibacterial agent, 8 parts of flame retardant, 5 parts of antioxidant, and 4 parts of lubricant.

[0080] The antioxidant in this embodiment is antioxidant 1010; the lubricant is N,N'-ethylene bisstearamide; the flame retardant is magnesium hydroxide; and the antibacterial agent is nano silver powder.

[0081] The preparation method of the filler modifier of this embodiment is:

[0082] S01: Add 5 parts of carbon nanotubes and 3 parts of boron nitride to 8 parts of 5% sodium dodecylbenzene sulfonate solution by weight, then add 3 parts of silane coupling agent KH550, stir well, and obtain carbon nanotube liquid;

[0083] S02: preheating silicon dioxide at 65°C for 1 hour to obtain preheated silicon dioxide; immersing the preheated silicon dioxide in a sufficient amount of yttrium nitrate solution with a mass fraction of 4% and stirring it sufficiently, then filtering and drying it to obtain yttrium-doped silicon dioxide;

[0084] The yttrium-doped silica and carbon nanotube liquid are stirred in a weight ratio of 2:5, filtered and dried after the stirring is completed to obtain a carbon nanotube / silicon dioxide compounding agent;

[0085] S03: 5 parts of silicon carbide, 3 parts of basalt fiber, 8 parts of lanthanum chloride solution and 3 parts of chitosan solution are mixed by weight to obtain a filling solution;

[0086] S04: The carbon nanotube / silicon dioxide compounding agent and the compound filling liquid are mixed in a weight ratio of 5:3, and the mixture is ball-milled at a speed of 1000 r / min for 1 h. After the ball-milling is completed, the mixture is filtered and dried to obtain a filler modifier.

[0087] The stirring speed of S02 in this embodiment is 750r / min, and the stirring time is 30min; the average particle size of silicon dioxide is 10nm, and the average specific surface area is 380m 2 / g; the average particle size of carbon nanotubes is 30nm, and the average specific surface area is 380m 2 / g.

[0088] The mass fraction of the lanthanum chloride solution in this embodiment is 6%; the mass fraction of the chitosan solution is 5%.

[0089] The preparation method of the balancing agent of this embodiment is:

[0090] S11: adding 8 parts of nano-attapulgite and 4 parts of silicon powder to 15 parts of Tris-HCl buffer solution by weight, and then adding 5 parts of sodium carboxymethyl cellulose, stirring sufficiently to obtain a modified solution based on nano-attapulgite;

[0091] S12: ultrasonically treat the regulator and the modified liquid based on nano-attapulgite in a weight ratio of 3:5. After the ultrasonic treatment is completed, the regulator is filtered and dried to obtain the regulator.

[0092] The pH value of the Tris-HCl buffer solution in this example is 9; the ultrasonic power of the ultrasonic treatment is 450 W, and the ultrasonic treatment lasts for 20 minutes.

[0093] The preparation method of the regulator of this embodiment is:

[0094] 5 parts of 5% sodium silicate solution, 3 parts of potassium feldspar and 4 parts of zirconium silicate were mixed evenly by weight, and then 5 parts of 4% sodium lignin sulfonate solution and 3 parts of nano-alumina were added, and the mixture was mixed thoroughly, and finally filtered and dried to obtain a regulator.

[0095] A method for preparing a silicone blister film in this embodiment comprises the following steps:

[0096] Firstly, polyethylene terephthalate, a filler modifier, a balancing agent, a silane coupling agent KH560, an antibacterial agent, a flame retardant, an antioxidant and a lubricant are fully blended, then melt-extruded at a temperature of 270°C, cast into a film, cooled to 70°C, and then biaxially stretched at a longitudinal stretching temperature of 70°C, a transverse stretching temperature of 100°C, a longitudinal stretching ratio of 2, and a transverse stretching ratio of 3.5 to obtain a polyethylene terephthalate base film, and finally the silicone layer and the polyethylene terephthalate base film are hot-pressed and composited to form a silicone blister film.

[0097] This embodiment also provides an application of a silicone blister film in automobile interior decoration.

[0098] Embodiment 3: A silicone blister film, comprising a silicone layer and a polyethylene terephthalate base film laminated and heat-pressed;

[0099] The thickness of the silicone layer is 0.25 mm, and the thickness of the polyethylene terephthalate base film is 0.5 mm;

[0100] The polyethylene terephthalate base film comprises the following raw materials in parts by weight:

[0101] 37.5 parts of polyethylene terephthalate, 10 parts of filler modifier, 7.5 parts of balancing agent, 5 parts of silane coupling agent KH560, 5.5 parts of antibacterial agent, 6.5 parts of flame retardant, 4 parts of antioxidant, and 3 parts of lubricant.

[0102] The antioxidant in this embodiment is antioxidant 1010; the lubricant is N,N'-ethylene bisstearamide; the flame retardant is magnesium hydroxide; and the antibacterial agent is nano silver powder.

[0103] The preparation method of the filler modifier of this embodiment is:

[0104] S01: 3.5 parts of carbon nanotubes and 2 parts of boron nitride are added to 6.5 parts of 5% sodium dodecylbenzene sulfonate solution by weight, and then 2.5 parts of silane coupling agent KH550 are added and stirred sufficiently to obtain a carbon nanotube solution;

[0105] S02: preheating silicon dioxide at 62.5°C for 1 hour to obtain preheated silicon dioxide; immersing the preheated silicon dioxide in a sufficient amount of yttrium nitrate solution with a mass fraction of 4% and stirring it sufficiently, then filtering and drying it to obtain yttrium-doped silicon dioxide;

[0106] The yttrium-doped silica and carbon nanotube liquid are stirred in a weight ratio of 2:5, filtered and dried after the stirring is completed to obtain a carbon nanotube / silicon dioxide compounding agent;

[0107] S03: 4 parts of silicon carbide, 2.5 parts of basalt fiber, 6.5 parts of lanthanum chloride solution and 2.5 parts of chitosan solution are mixed by weight to obtain a filling solution;

[0108] S04: The carbon nanotube / silicon dioxide compounding agent and the compound filling liquid are mixed in a weight ratio of 5:3, and the mixture is ball-milled at a speed of 1000 r / min for 1 h. After the ball-milling is completed, the mixture is filtered and dried to obtain a filler modifier.

[0109] The stirring speed of S02 in this embodiment is 600r / min, and the stirring time is 25min; the average particle size of silicon dioxide is 10nm, and the average specific surface area is 380m 2 / g; the average particle size of carbon nanotubes is 30nm, and the average specific surface area is 380m 2 / g.

[0110] The mass fraction of the lanthanum chloride solution in this embodiment is 4.5%; the mass fraction of the chitosan solution is 3.5%.

[0111] The preparation method of the balancing agent of this embodiment is:

[0112] S11: adding 6.5 parts of nano-attapulgite and 3 parts of silicon powder to 12.5 parts of Tris-HCl buffer solution by weight, and then adding 4 parts of sodium carboxymethyl cellulose, stirring sufficiently to obtain a modified solution based on nano-attapulgite;

[0113] S12: ultrasonically treat the regulator and the modified liquid based on nano-attapulgite in a weight ratio of 3:5. After the ultrasonic treatment is completed, the regulator is filtered and dried to obtain the regulator.

[0114] The pH value of the Tris-HCl buffer solution in this example is 8.5; the ultrasonic power of the ultrasonic treatment is 425 W, and the ultrasonic treatment lasts for 20 minutes.

[0115] The preparation method of the regulator of this embodiment is:

[0116] 3.5 parts of 5% sodium silicate solution, 2 parts of potassium feldspar and 3 parts of zirconium silicate were mixed evenly by weight, and then 4 parts of 4% sodium lignin sulfonate solution and 2 parts of nano-alumina were added, and the mixture was mixed thoroughly, and finally filtered and dried to obtain a regulator.

[0117] A method for preparing a silicone blister film in this embodiment comprises the following steps:

[0118] Firstly, polyethylene terephthalate, a filler modifier, a balancing agent, a silane coupling agent KH560, an antibacterial agent, a flame retardant, an antioxidant and a lubricant are fully blended, then melt-extruded at a temperature of 270°C, cast into a film, cooled to 70°C, and then biaxially stretched at a longitudinal stretching temperature of 70°C, a transverse stretching temperature of 100°C, a longitudinal stretching ratio of 2, and a transverse stretching ratio of 3.5 to obtain a polyethylene terephthalate base film, and finally the silicone layer and the polyethylene terephthalate base film are hot-pressed and composited to form a silicone blister film.

[0119] This embodiment also provides an application of a silicone blister film in automobile interior decoration.

[0120] Comparative Example 1:

[0121] The difference from Example 3 is that no filler modifier is added.

[0122] Comparative Example 2:

[0123] The difference from Example 3 is that no carbon nanotube / silicon dioxide compounding agent is added in the preparation of the filler modifier.

[0124] Comparative Example 3:

[0125] The difference from Example 3 is that yttrium-doped silica is not added in the preparation of the carbon nanotube / silicon dioxide compound.

[0126] Comparative Example 4:

[0127] The difference from Example 3 is that no carbon nanotube liquid is added in the preparation of the carbon nanotube / silicon dioxide compounding agent.

[0128] Comparative Example 5:

[0129] The difference from Example 3 is that no carbon nanotubes or boron nitride are added in the preparation of the carbon nanotube liquid.

[0130] Comparative Example 6:

[0131] The difference from Example 3 is that no refilling liquid is added in the preparation of the filler modifier.

[0132] Comparative Example 7:

[0133] The difference from Example 3 is that silicon carbide and basalt fiber are not added to the filling liquid.

[0134] Comparative Example 8:

[0135] The difference from Example 3 is that no balancing agent was added.

[0136] Comparative Example 9:

[0137] The difference from Example 3 is that no modifying liquid based on nano-attapulgite is added to the balancing agent.

[0138] Comparative Example 10:

[0139] The difference from Example 3 is that no nano attapulgite or silicon powder is added in the preparation of the modified solution based on nano attapulgite.

[0140] Comparative Example 11:

[0141] The difference from Example 3 is that no regulator is added to the balancing agent.

[0142] The products of Examples 1 to 3 and Comparative Examples 1 to 11 were tested for antibacterial, wear resistance and flame retardancy under normal conditions. At the same time, the products were placed in 5% hydrochloric acid mist for 24 hours, then at 65°C for 12 hours, and finally at 5°C for 12 hours. The above is one cycle, and the cycle is repeated 10 times to test the antibacterial, wear resistance and flame retardancy of the products under corrosion resistance, cold and heat resistance conditions. The test results are shown in Table 1.

[0143] Table 1 Product performance test results of Examples 1 to 3 and Comparative Examples 1 to 11;

[0144]

[0145] It can be seen from Comparative Examples 1 to 11 and Examples 1 to 3 that the product of Example 3 has an excellent antibacterial rate of Escherichia coli, and at the same time has excellent limiting oxygen index and wear resistance. The antibacterial, wear resistance and flame retardancy properties of the product can be improved in a coordinated manner. In addition, the product has excellent corrosion resistance and cold and heat stability effects.

[0146] If neither filler modifier nor balancing agent is added to the product, the performance of the product will deteriorate significantly. By using the two together, the product performance effect is obvious;

[0147] The performance of the products of the filler modifiers prepared without adding carbon nanotubes / silicon dioxide compounding agents, without adding yttrium-doped silicon dioxide, without adding carbon nanotube liquid, without adding carbon nanotubes and boron nitride to the preparation of carbon nanotube liquid, without adding refilling liquid to the preparation of the filler modifiers, without adding silicon carbide and basalt fiber to the refilling liquid, all showed a trend of deterioration to varying degrees. The filler modifiers prepared by using the refilling liquid obtained by the specific method of the present invention and the specific carbon nanotube / silicon dioxide compounding agents had the most significant performance effect. The effects of other methods were not as obvious as those of the present invention.

[0148] When the modified liquid based on nano-attapulgite is not added to the balancing agent, and nano-attapulgite and silicon powder are not added to the preparation of the modified liquid based on nano-attapulgite, the performance of the products tends to deteriorate. When a specific balancing agent is used, the performance effect of the product is most significant.

[0149] Since the regulator has a significant effect on the performance of the product, further research is conducted on this.

[0150] Experimental Example 1:

[0151] The only difference from Example 3 is that potassium feldspar is not added to the regulator.

[0152] Experimental Example 2:

[0153] The only difference from Example 3 is that zirconium silicate is not added to the regulator.

[0154] Experimental Example 3:

[0155] The only difference from Example 3 is that no sodium silicate solution is added to the regulator.

[0156] Experimental Example 4:

[0157] The only difference from Example 3 is that no sodium lignin sulfonate solution is added to the regulator.

[0158] Experimental Example 5:

[0159] The only difference from Example 3 is that no nano-alumina is added to the regulator.

[0160] The products of Experimental Examples 1 to 5 were subjected to antibacterial, wear-resistant and flame-retardant tests under normal conditions. At the same time, the products were placed in 5% hydrochloric acid mist for 24 hours, then at 65°C for 12 hours, and finally at 5°C for 12 hours. The above was one cycle, and the cycle was repeated 10 times to test the antibacterial, wear-resistant and flame-retardant properties of the products under corrosion resistance, cold and heat resistance conditions. The test results are shown in Table 2.

[0161] Table 2 Product performance test results of Experimental Examples 1 to 5;

[0162]

[0163] It can be seen from Experimental Examples 1-5 that when potassium feldspar is not added to the regulator, the performance of the product has a large trend of change. At the same time, when zirconium silicate and nano-alumina are not added to the regulator, the performance of the product has a tendency to deteriorate. When sodium silicate solution and sodium lignin sulfonate solution are not added to the regulator, the performance of the product has a tendency to deteriorate to varying degrees. The regulator obtained by combining potassium feldspar and zirconium silicate with specific raw materials has the most significant product performance effect. Only the product prepared by using the specific raw materials of the present invention has the most significant performance effect. Using other methods instead is not as obvious as the effect of the present invention.

[0164] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0165] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A silicone blister film, characterized in that: It includes a silicone layer and a polyethylene terephthalate base film which are laminated and heat-pressed and compounded on top of each other; The thickness of the silicone layer is 0.2-0.3 mm, and the thickness of the polyethylene terephthalate base film is 0.5 mm; The polyethylene terephthalate base film comprises the following raw materials in parts by weight: 35-40 parts of polyethylene terephthalate, 8-12 parts of filler modifier, 6-9 parts of balancing agent, 4-6 parts of silane coupling agent KH560, 4-7 parts of antibacterial agent, 5-8 parts of flame retardant, 3-5 parts of antioxidant, 2-4 parts of lubricant; The preparation method of the filler modifier is: S01: Add 2-5 parts of carbon nanotubes and 1-3 parts of boron nitride to 5-8 parts of 5% sodium dodecylbenzene sulfonate solution by weight, then add 2-3 parts of silane coupling agent KH550, stir well, and obtain carbon nanotube liquid; S02: preheating silicon dioxide at 60-65°C for 1 hour to obtain preheated silicon dioxide; immersing the preheated silicon dioxide in a sufficient amount of yttrium nitrate solution with a mass fraction of 4% and stirring it sufficiently, then filtering and drying it to obtain yttrium-doped silicon dioxide; The yttrium-doped silica and carbon nanotube liquid are stirred in a weight ratio of 2:5, filtered and dried after the stirring is completed to obtain a carbon nanotube / silicon dioxide compounding agent; S03: 3-5 parts of silicon carbide, 2-3 parts of basalt fiber, 5-8 parts of lanthanum chloride solution and 2-3 parts of chitosan solution are mixed by weight to obtain a filling solution; S04: The carbon nanotube / silicon dioxide compounding agent and the compound filling liquid are mixed in a weight ratio of 5:3, and the mixture is ball-milled at a speed of 1000 r / min for 1 h. After the ball-milling is completed, the mixture is filtered and dried to obtain a filler modifier; The preparation method of the balancing agent is: S11: adding 5 to 8 parts of nano-attapulgite and 2 to 4 parts of silicon powder to 10 to 15 parts of Tris-HCl buffer solution by weight, and then adding 3 to 5 parts of sodium carboxymethyl cellulose, stirring sufficiently to obtain a modified solution based on nano-attapulgite; S12: ultrasonically treating the regulator and the modified liquid based on nano-attapulgite in a weight ratio of 3:5, filtering and drying after the ultrasonic treatment to obtain the regulator; The preparation method of the regulator is: 2-5 parts by weight of 5% sodium silicate solution, 1-3 parts of potassium feldspar and 2-4 parts of zirconium silicate are uniformly mixed, and then 3-5 parts by weight of 4% sodium lignin sulfonate solution and 1-3 parts of nano-alumina are added, and the mixture is mixed thoroughly, and finally filtered and dried to obtain a regulator.

2. The silicone blister film according to claim 1, characterized in that: The antioxidant is antioxidant 1010; the lubricant is N,N'-ethylene bisstearamide; the flame retardant is magnesium hydroxide; and the antibacterial agent is nano silver powder.

3. The silicone blister film according to claim 1, characterized in that: The stirring speed in S02 is 550~750r / min, and the stirring is 20~30min.

4. The silicone blister film according to claim 1, characterized in that: The average particle size of silica is 10 nm and the average specific surface area is 380 m 2 / g; the average particle size of carbon nanotubes is 30nm, and the average specific surface area is 380m 2 / g.

5. The silicone blister film according to claim 1, characterized in that: The mass fraction of the lanthanum chloride solution is 3-6%; the mass fraction of the chitosan solution is 2-5%.

6. The silicone blister film according to claim 1, characterized in that: The pH value of Tris-HCl buffer solution is 8~9.

7. The silicone blister film according to claim 1, characterized in that: The ultrasonic power of ultrasonic treatment was 400~450W, and the ultrasonic treatment lasted for 20 minutes.

8. A method for preparing a silicone blister film, used for preparing the silicone blister film as claimed in claim 1, characterized in that: The following steps are involved: Firstly, polyethylene terephthalate, a filler modifier, a balancing agent, a silane coupling agent KH560, an antibacterial agent, a flame retardant, an antioxidant and a lubricant are fully blended, then melt-extruded at a temperature of 270°C, cast into a film, cooled to 70°C, and then biaxially stretched at a longitudinal stretching temperature of 70°C, a transverse stretching temperature of 100°C, a longitudinal stretching ratio of 2, and a transverse stretching ratio of 3.5 to obtain a polyethylene terephthalate base film, and finally the silicone layer and the polyethylene terephthalate base film are hot-pressed and composited to form a silicone blister film.

9. Use of the silicone blister film as claimed in claim 1 in automobile interior decoration.

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