Weather-resistant and high-temperature-resistant PVC automobile film and preparation method thereof

Abstract

The invention is suitable for the technical field of PVC automobile films, and provides a weather-resistant and high-temperature-resistant PVC automobile film and a preparation method thereof.The PVC automobile film is prepared from, by mass, 20-40 parts of PVC resin, 1.5-3.5 parts of calcium carbonate, 2-4 parts of nano zinc oxide, 1-2 parts of nano aluminum oxide, 1.2-2.6 parts of talcum powder, 1.8-3.2 parts of metalloporphyrin, 0.8-1.6 parts of flame retardant, 3-6 parts of nano titanium dioxide, 0.3-0.7 part of antioxidant and 1-2 parts of rare earth oxide; preferably, the metalloporphyrin is one or more of cobalt tetrahydroxy porphyrin, zinc tetraamino porphyrin and cobalt tetracarboxyl porphyrin. The PVC automobile film prepared by taking the PVC resin, calcium carbonate, nano zinc oxide, nano aluminum oxide, talcum powder, metalloporphyrin, nano titanium dioxide, rare earth oxide, the flame retardant and the antioxidant as components has excellent weather resistance and high temperature resistance and has a wide application prospect.

Description

Technical Field

[0001] The invention relates to the technical field of PVC automobile films, in particular to a weather-resistant and high-temperature-resistant PVC automobile film and a preparation method thereof. Background Art

[0002] PVC automotive film usually refers to polyvinyl chloride (PVC) film materials used for car windows, which are widely used in the fields of window shading, privacy protection, UV protection, thermal isolation, etc. These films are made of PVC plastic materials through processing, extrusion and other processes, and have excellent physical properties and durability. They generally have good UV resistance, anti-aging, anti-scratch, heat insulation and UV resistance.

[0003] PVC car film is exposed to sunlight, rain, wind and sand for a long time, so it needs to have strong weather resistance. In summer or high temperature environment, the temperature inside the car may reach high temperature. If the PVC film does not have sufficient high temperature resistance, it may deform, fade, blister and other problems. Therefore, PVC car film has high requirements for weather resistance and high temperature resistance.

[0004] With the development of the electric vehicle industry, the car film industry, as an industry related to electric vehicles, is also booming, and higher requirements are put forward for the durability and high temperature resistance of car films. Although the existing PVC car films meet the above requirements to a certain extent, there is still room for improvement in terms of weather resistance and high temperature resistance. In this regard, the present invention proposes a weather-resistant and high temperature-resistant PVC car film and a preparation method. Summary of the invention

[0005] The object of the present invention is to provide a weather-resistant and high-temperature-resistant PVC automobile film and a preparation method thereof, so as to solve the problems in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: In a first aspect, the present invention provides a weather-resistant and high-temperature-resistant PVC automobile film, wherein the PVC automobile film comprises the following components and mass fractions:

[0007] 20-40 parts of PVC resin, 1.5-3.5 parts of calcium carbonate, 2-4 parts of nano zinc oxide, 1-2 parts of nano aluminum oxide, 1.2-2.6 parts of talc, 1.8-3.2 parts of metal porphyrin, 0.8-1.6 parts of flame retardant, 3-6 parts of nano titanium dioxide, 0.3-0.7 parts of antioxidant and 1-2 parts of rare earth oxide.

[0008] Preferably, the metal porphyrin is one or more of tetrahydroxyporphyrin cobalt, tetraaminoporphyrin zinc, and tetracarboxylporphyrin cobalt.

[0009] Preferably, the flame retardant is one or more of aluminum hydroxide, magnesium hydroxide, and diphosphonate.

[0010] Preferably, the antioxidant is one or more of silicone oil, diphenyl phosphite, and tert-butyl-p-cresol.

[0011] Preferably, the rare earth oxide is one or more of cerium oxide, neodymium oxide, and lanthanum oxide.

[0012] Preferably, the mass ratio of the nano zinc oxide, nano aluminum oxide and nano titanium dioxide is 2:1:3.

[0013] The second aspect of the present invention provides a method for preparing the PVC automobile film according to the first aspect of the present invention, comprising the following steps:

[0014] Calcium carbonate, nano zinc oxide, nano aluminum oxide, talcum powder, metal porphyrin, nano titanium dioxide and rare earth oxide are mixed in proportion, ground evenly, then added with PVC resin, and continued to stir for 10 to 15 minutes, and finally added with flame retardant and antioxidant, mixed and stirred evenly, and melt extruded to form.

[0015] The present invention has at least the following beneficial effects:

[0016] The invention provides a weather-resistant and high-temperature-resistant PVC automobile film and a preparation method thereof. The PVC automobile film prepared with PVC resin, calcium carbonate, nano zinc oxide, nano aluminum oxide, talcum powder, metal porphyrin, nano titanium dioxide, rare earth oxide, flame retardant and antioxidant as components has excellent weather-resistant and high-temperature-resistant properties and has broad application prospects. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention are described clearly and completely below. 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.

[0018] Example 1

[0019] This embodiment provides a weather-resistant and high-temperature-resistant PVC automobile film, including the following components and mass fractions:

[0020] 20 parts of PVC resin, 1.5 parts of calcium carbonate, 2 parts of nano zinc oxide, 1 part of nano aluminum oxide, 1.2 parts of talc, 1.8 parts of metal porphyrin, 0.8 parts of flame retardant, 3 parts of nano titanium dioxide, 0.3 parts of antioxidant, and 1 part of rare earth oxide.

[0021] The metal porphyrin is cobalt tetrahydroxyporphyrin; the flame retardant is aluminum hydroxide; the antioxidant is silicone oil; and the rare earth oxide is cerium oxide.

[0022] Among them, the mass ratio of nano zinc oxide, nano aluminum oxide and nano titanium dioxide is 2:1:3.

[0023] The preparation method of the above PVC automobile film comprises the following steps:

[0024] Calcium carbonate, nano zinc oxide, nano aluminum oxide, talcum powder, metal porphyrin, nano titanium dioxide and rare earth oxide are mixed in proportion, ground evenly, then added with PVC resin, and continued to stir for 10 minutes, and finally added with flame retardant and antioxidant, mixed and stirred evenly, and melt extruded to form.

[0025] Example 2

[0026] This embodiment provides a weather-resistant and high-temperature-resistant PVC automobile film, including the following components and mass fractions:

[0027] 30 parts of PVC resin, 2 parts of calcium carbonate, 3 parts of nano zinc oxide, 1.5 parts of nano aluminum oxide, 1.7 parts of talc, 2.5 parts of metal porphyrin, 1.2 parts of flame retardant, 4.5 parts of nano titanium dioxide, 0.5 parts of antioxidant, and 1.4 parts of rare earth oxide.

[0028] The metal porphyrin is tetracarboxyl porphyrin cobalt; the flame retardant is diphosphonate; the antioxidant is tert-butyl-p-cresol; and the rare earth oxide is lanthanum oxide.

[0029] Among them, the mass ratio of nano zinc oxide, nano aluminum oxide and nano titanium dioxide is 2:1:3.

[0030] The preparation method of the above PVC automobile film comprises the following steps:

[0031] Calcium carbonate, nano zinc oxide, nano aluminum oxide, talcum powder, metal porphyrin, nano titanium dioxide and rare earth oxide are mixed in proportion, ground evenly, then added with PVC resin, and stirred for 12 minutes, and finally flame retardant and antioxidant are added, mixed and stirred evenly, and melt extruded to form.

[0032] Example 3

[0033] This embodiment provides a weather-resistant and high-temperature-resistant PVC automobile film, including the following components and mass fractions:

[0034] 40 parts of PVC resin, 3.5 parts of calcium carbonate, 4 parts of nano zinc oxide, 2 parts of nano aluminum oxide, 2.6 parts of talc, 3.2 parts of metal porphyrin, 1.6 parts of flame retardant, 6 parts of nano titanium dioxide, 0.7 parts of antioxidant, and 2 parts of rare earth oxide.

[0035] The metal porphyrin is zinc tetraaminoporphyrin; the flame retardant is magnesium hydroxide; the antioxidant is diphenyl phosphite; and the rare earth oxide is neodymium oxide.

[0036] Among them, the mass ratio of nano zinc oxide, nano aluminum oxide and nano titanium dioxide is 2:1:3.

[0037] The preparation method of the above PVC automobile film comprises the following steps:

[0038] Calcium carbonate, nano zinc oxide, nano aluminum oxide, talcum powder, metal porphyrin, nano titanium dioxide and rare earth oxide are mixed in proportion, ground evenly, then added with PVC resin, and stirred for 15 minutes, and finally flame retardant and antioxidant are added, mixed and stirred evenly, and melt extruded to form.

[0039] After testing, the product prepared by the present invention has a heat deformation temperature of 85°C to 90°C, and has good high temperature resistance; after aging for 1000 hours at 80°C, the strength decreases by 12.8%, and has excellent anti-aging performance; under ultraviolet light, cracks appear after 873 hours, and has good anti-ultraviolet performance.

[0040] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. 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 are included in the present invention.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A weather-resistant and high-temperature resistant PVC automotive film, characterized in that: The PVC automobile film comprises the following components and mass fractions: 20-40 parts of PVC resin, 1.5-3.5 parts of calcium carbonate, 2-4 parts of nano zinc oxide, 1-2 parts of nano aluminum oxide, 1.2-2.6 parts of talc, 1.8-3.2 parts of metal porphyrin, 0.8-1.6 parts of flame retardant, 3-6 parts of nano titanium dioxide, 0.3-0.7 parts of antioxidant and 1-2 parts of rare earth oxide.

2. The weather-resistant and high-temperature-resistant PVC automobile film according to claim 1, characterized in that: The metal porphyrin is one or more of tetrahydroxyporphyrin cobalt, tetraaminoporphyrin zinc, and tetracarboxylporphyrin cobalt.

3. The weather-resistant and high-temperature-resistant PVC automobile film according to claim 1, characterized in that: The flame retardant is one or more of aluminum hydroxide, magnesium hydroxide and diphosphonate.

4. The weather-resistant and high-temperature-resistant PVC automobile film according to claim 1, characterized in that: The antioxidant is one or more of silicone oil, diphenyl phosphite and tert-butyl-p-cresol.

5. The weather-resistant and high-temperature-resistant PVC automobile film according to claim 1, characterized in that: The rare earth oxide is one or more of cerium oxide, neodymium oxide and lanthanum oxide.

6. The weather-resistant and high-temperature-resistant PVC automobile film according to claim 1, characterized in that: The mass ratio of the nano zinc oxide, nano aluminum oxide and nano titanium dioxide is 2:1:

3.

7. The method for preparing the PVC automobile film according to any one of claims 1 to 6, characterized in that: The following steps are involved: Calcium carbonate, nano zinc oxide, nano aluminum oxide, talcum powder, metal porphyrin, nano titanium dioxide and rare earth oxide are mixed in proportion, ground evenly, then added with PVC resin, and continued to stir for 10 to 15 minutes, and finally added with flame retardant and antioxidant, mixed and stirred evenly, and melt extruded to form.