CN112480645A - Preparation method of high-weather-resistance flame-retardant resin tile material - Google Patents

Abstract

The invention discloses a preparation method of a high weather-resistant flame-retardant resin tile, and relates to the field of resin tile preparation. The invention discloses a preparation method of a high weather-resistant flame-retardant resin tile material, which is prepared by respectively carrying out surface modification on yttrium oxide, aluminum oxide fibers, modified plant fibers and modified ASA resin, then blending with components such as polyphenyl ether, ethylene propylene diene monomer rubber and an organic modifier, and carrying out extrusion granulation. The preparation method of the high weather-resistant flame-retardant resin tile provided by the invention has the advantages of simple preparation method and equipment, easiness in operation, light weight, excellent mechanical property, corrosion resistance and aging resistance, and the service life of the resin tile is prolonged and can reach more than 20 years.

Description

Preparation method of high-weather-resistance flame-retardant resin tile material

Technical Field

The invention belongs to the field of resin tile preparation, and particularly relates to a preparation method of a high-weather-resistance flame-retardant resin tile material.

Background

Tiles have been widely used for millennia as one of the oldest building materials. The tile is the most important roofing material, not only plays the roles of wind and rain shielding and indoor lighting, but also has important decorative effect, and other functions of the tile are continuously appeared along with the continuous emergence of modern new materials. The roof tiles are various in types, the main classification method is to classify the roof tiles according to raw materials, clay tiles are used mostly, and the clay tiles have the defects of great weight, environmental pollution, high energy consumption, poor quality, poor decoration effect and the like, so the clay tiles are gradually replaced by other products.

In order to protect cultivated land, protect environment and save energy, the central document I indicates that the high-efficiency, energy-saving, soil-saving, waste-utilizing and environment-friendly novel composite wall material and roof waterproof material with light weight, high strength, heat preservation, heat insulation and fire prevention are required to be researched and developed vigorously, and the resin tile is a novel building material developed by high-tech chemical technology, is a new-generation light material which is advocated and popularized in China, has various excellent characteristics of light weight, high strength, water resistance, moisture resistance, corrosion resistance, flame resistance, sound insulation, heat insulation and the like, and is generally used for roofs of various buildings. The resin commonly used in the application of the resin tile is PVC and ASA, wherein the PVC provides necessary strength for the roof tile, the ASA is used as a surface layer to ensure the weather resistance and the color richness of the roof tile, and the resin tile has the defects of complex process and need of a set of complex co-extrusion equipment; there is also a lack of strength, which cannot be used on roofs that need to carry a certain weight, and which may be dangerous for the persons on the roof.

The Chinese invention patent CN201810767238.5 discloses a high weather-resistant resin tile and a manufacturing process thereof, wherein the tile comprises a surface layer, a bonding layer and a base material, and is formed at one time by adopting a three-layer co-extrusion process, so that the tile has high flame retardance, excellent weather resistance and light aging resistance, and the service life of the tile is more than 20 years. However, the resin tile has a 3-layer resin structure, the manufacturing device is complicated, the bonding effect between the 3 layers of resin is weakened along with the environment and the service life, the service life is not longer than 20 years in the patent, and the strength and toughness of the resin tile are affected by the use of the multilayer structure. The invention Chinese patent CN201711322002.2 discloses a PBT material for roof tiles and a preparation method thereof, the PBT material is prepared by compounding PBT and PMMA, the preparation method is simple, the glossiness is high, the wear resistance is good, the weather resistance is good, but the roof tiles have poor flame retardance and aging resistance, the sound insulation and heat insulation performance is common, and the roof tiles do not conform to the concept of modern buildings.

Disclosure of Invention

The invention aims to provide a preparation method of a high weather-resistant flame-retardant resin tile, which has the advantages of simple preparation method and equipment, easy operation, light weight, excellent mechanical property, corrosion resistance and aging resistance, prolongs the service life of the resin tile, and can reach more than 20 years.

In order to realize the purpose of the invention, the invention provides a preparation method of a high weather-resistant flame-retardant resin tile, which comprises the following steps:

(1) adding yttrium oxide and alumina fiber into 50 wt% acetic acid solution, stirring for 1h, adding environment-friendly soybean oil and polyvinyl alcohol, mixing uniformly, heating to 80-90 ℃, and stirring for 3-4h to obtain a mixture A;

(2) mixing modified plant fiber and modified ASA resin, adding tributyl citrate, stirring for 1h, adding polyethylene glycol, heating to 60-80 deg.C, stirring for 2-3h to obtain mixture B;

(3) heating a two-roll plastic mixer to 100-120 ℃, sequentially putting polyphenyl ether, ethylene propylene diene monomer rubber and organic bentonite into the two-roll plastic mixer for mixing until the materials are molten, adding tristearin and a vulcanizing agent, mixing uniformly, and putting the mixture into a double-screw extruder for extrusion and granulation to prepare a mixture C;

(4) adding a hindered amine light stabilizer and benzophenone into a 25 wt% ammonium chloride solution, uniformly mixing, stirring at 50-60 ℃ for 1h, then adding ammonium polyphosphate and triphenyl phosphate, continuously stirring for 0.5h, cooling to room temperature, and drying to obtain an organic modifier;

(5) and uniformly mixing the mixture A, the mixture B, the mixture C, the silane coupling agent and the organic modifier in a mixer, drying, putting into a double-screw extruder, and performing melt extrusion and granulation to obtain the high-weather-resistance flame-retardant resin tile material.

Further, the preparation method of the modified plant fiber comprises the following steps: soaking the plant fiber in 5-10 wt% NaOH solution at 60-70 deg.c for 0.5 hr, adding the mixed solution of diethanolamide and polyglycol, heating to 100 deg.c and 120 deg.c, soaking for 3-4 hr, filtering and drying to obtain modified plant fiber.

Further, the mass ratio of the diethanolamide to the polyethylene glycol to the NaOH solution is (1-2.5): 1: (5-7).

Further, the preparation method of the modified ASA resin comprises the following steps: adding ASA resin into a mixed solution of phospholipid and sodium stearate, adding butyl titanate, stirring at 60-80 ℃ for 2h, adding 10% sodium ethoxide solution, stirring for 1h, cooling to room temperature, filtering, washing with deionized water to be neutral, and drying to obtain the modified ASA resin.

Further, the mass ratio of the ASA resin to the phospholipid to the sodium stearate is 1: (1.5-2.3): (0.8-1.6), wherein the mass ratio of the ASA resin to the sodium glycolate is 1: (3-5), wherein the mass ratio of the butyl titanate to the ASA resin is (0.03-0.08): 1.

further, in the step (1), the mass ratio of the yttrium oxide to the alumina fiber to the acetic acid solution is 1: (1-2): (5-7), wherein the mass ratio of the yttrium oxide to the environment-friendly soybean oil to the polyvinyl alcohol is 1: (0.1-0.3): (0.2-0.5).

Further, in the step (2), the mass ratio of the modified plant fiber to the modified ASA resin is 2: 1, the mass ratio of the modified plant fiber to the tributyl citrate to the polyethylene glycol is 1: (0.05-0.08): (0.1-0.2).

Further, in the step (3), the mass ratio of the polyphenyl ether to the ethylene propylene diene monomer to the organic bentonite is 1: (0.2-0.6): (0.1-0.2), wherein the mass of the glyceryl tristearate is 2-4% of the mass of the polyphenylene ether, and the mass of the vulcanizing agent is 1-3% of the mass of the polyphenylene ether.

Further, the mass of the yttrium oxide is 8-10% of the mass of the polyphenyl ether, the mass of the modified plant fiber is 10-15% of the mass of the polyphenyl ether, the mass of the silane coupling agent is 3-5% of the mass of the polyphenyl ether, and the mass of the organic modifying agent is 4-8% of the mass of the polyphenyl ether.

Further, the organic modifier comprises the following components in parts by mass: 5-10 parts of hindered amine light stabilizer, 3-8 parts of benzophenone, 10-15 parts of ammonium polyphosphate and 20-30 parts of triphenyl phosphate.

The invention achieves the following beneficial effects:

1. the polyphenyl ether has excellent mechanical property, stress relaxation resistance, creep resistance, heat resistance, water resistance, flame retardance and weather resistance, but has poor melt flowability and difficult processing. The organic bentonite has good lubricity and high-temperature stability, the processing performance of the polyphenylene ether is further improved by adding the organic bentonite, the polyphenylene ether and the ethylene propylene diene monomer are fully combined under the action of the plasticizer and the vulcanizing agent, and the impact strength of the resin tile is improved.

2. The plant fiber has wide sources and is environment-friendly, and the activity of the plant fiber is increased by modifying the plant fiber through the surfactant, so that the plant fiber is compatible with other components in the invention, thereby increasing the interface bonding force among the components, increasing the bonding effect among the components and further improving the strength and toughness of the invention.

3. After the ASA resin is modified, the bonding force between the ASA resin and other components can be increased, and the resin tile is prevented from being separated out, so that the service life of the resin tile is influenced and the environment is polluted; the ASA resin has excellent weather resistance and rich colors, so the modified ASA resin can further improve the weather resistance of resin tiles and ensure the color diversity of the resin tiles. The modified ASA resin and the modified plant fiber are easy to perform crosslinking reaction under the action of a surfactant, so that the binding force among the components is enhanced, the resin tile is not easy to crack or photolyze, and the weather resistance of the resin tile is improved.

4. The yttrium oxide and aluminum oxide fibers are subjected to surface alcoholization by the environment-friendly soybean oil and the polyvinyl alcohol under the action of acetic acid, so that other components in the resin tile can react more easily, the interface binding force of each component is increased, and the strength and the flame retardance of the flame-retardant resin tile are improved.

5. The organic modifier comprises a light stabilizer and a flame retardant, and the components are mutually synergistic, so that the organic modifier has excellent aging resistance and flame retardance; the components are mutually combined under the action of an ammonium chloride solution, so that the organic modifier component can be fully dispersed among the components of the resin tile to play the essential role, the components are difficult to separate out (under the action of a plasticizer and a silane coupling agent), and the service life of the resin tile is prolonged.

6. The invention is prepared by adopting polyphenyl ether and ethylene propylene diene monomer under the action of other component auxiliaries, has simple preparation method and equipment, is easy to operate, has excellent weather resistance, flame retardance, mechanical strength and toughness, excellent aging resistance and acid and alkali resistance, prolongs the service life of the resin tile, and ensures that the service life of the resin tile can reach more than 20 years. The components have excellent interface binding force, are not easy to separate out, do not pollute the environment, and have excellent stress cracking resistance and impact resistance; the preparation method of the invention can fully play the essential role of each component, and the components have mutual synergistic action, so that the resin tile of the invention achieves the optimal comprehensive performance.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The following describes a method for preparing a high weather-resistant flame-retardant resin tile according to the present invention with reference to specific examples.

Example 1A highly weather-resistant flame-retardant resin tile

A preparation method of a high weather-resistant flame-retardant resin tile specifically comprises the following steps:

(1) adding 8 parts of yttrium oxide and 8 parts of alumina fiber into 40 parts of 50 wt% acetic acid solution, stirring for 1h, then adding 0.8 part of environment-friendly soybean oil and 4 parts of polyvinyl alcohol, uniformly mixing, heating to 80-90 ℃, and stirring for 3-4h to obtain a mixture A.

(2) Mixing 15 parts of modified plant fiber and 7.5 parts of modified ASA resin, adding 1.2 parts of tributyl citrate, stirring for 1 hour, adding 1.5 parts of polyethylene glycol, heating to 60-80 ℃, and stirring for 2-3 hours to obtain a mixture B.

(3) Heating a two-roll plastic mixing machine to 100-120 ℃, sequentially putting 100 parts of polyphenyl ether, 60 parts of ethylene propylene diene monomer and 10 parts of organic bentonite into the two-roll plastic mixing machine for mixing until the materials are molten, then adding 2 parts of glyceryl tristearate and 3 parts of vulcanizing agent, mixing uniformly, and then putting the mixture into a double-screw extruder for extrusion and granulation to obtain a mixture C.

(4) Adding a hindered amine light stabilizer and benzophenone into a 25 wt% ammonium chloride solution, uniformly mixing, stirring at 50-60 ℃ for 1h, then adding ammonium polyphosphate and triphenyl phosphate, continuously stirring for 0.5h, cooling to room temperature, and drying to obtain the organic modifier.

(5) And uniformly mixing the mixture A, the mixture B, the mixture C, 5 parts of silane coupling agent and 4 parts of organic modifier in a mixer, drying, putting into a double-screw extruder, and performing melt extrusion and granulation to obtain the high-weather-resistant flame-retardant resin tile material.

The preparation method of the modified plant fiber comprises the following steps: soaking the plant fiber in 5 wt% NaOH solution at 60-70 deg.c for 0.5 hr, adding the mixed solution of diethanolamide and polyglycol, heating to 100 deg.c and 120 deg.c, soaking for 3-4 hr, filtering and drying to obtain the modified plant fiber. Wherein the mass ratio of the diethanolamide to the polyethylene glycol to the NaOH solution is 1: 1: 5.

the preparation method of the modified ASA resin comprises the following steps: adding 100 parts of ASA resin into a mixed solution of 150 parts of phospholipid and 160 parts of sodium stearate, then adding 5 parts of butyl titanate, stirring for 2 hours at the temperature of 60-80 ℃, then adding 300 parts of 10 wt% sodium ethoxide solution, continuing stirring for 1 hour, cooling to room temperature, filtering, washing with deionized water to be neutral, and drying to obtain the modified ASA resin.

The organic modifier comprises the following components in parts by mass: 10 parts of hindered amine light stabilizer, 3 parts of benzophenone, 15 parts of ammonium polyphosphate and 20 parts of triphenyl phosphate.

Example 2A high weather resistant flame retardant resin tile

A preparation method of a high weather-resistant flame-retardant resin tile specifically comprises the following steps:

(1) adding 10 parts of yttrium oxide and 16 parts of alumina fiber into 70 parts of 50 wt% acetic acid solution, stirring for 1h, then adding 3 parts of environment-friendly soybean oil and 2 parts of polyvinyl alcohol, uniformly mixing, heating to 80-90 ℃, and stirring for 3-4h to obtain a mixture A.

(2) Mixing 10 parts of modified plant fiber and 5 parts of modified ASA resin, then adding 0.5 part of tributyl citrate, stirring for 1h, then adding 2 parts of polyethylene glycol, heating to 60-80 ℃, and stirring for 2-3h to obtain a mixture B.

(3) Heating a two-roll plastic mixing machine to 100-120 ℃, sequentially putting 100 parts of polyphenyl ether, 20 parts of ethylene propylene diene monomer and 20 parts of organic bentonite into the two-roll plastic mixing machine for mixing until the materials are molten, then adding 4 parts of glyceryl tristearate and 1 part of vulcanizing agent, mixing uniformly, and then putting the mixture into a double-screw extruder for extrusion and granulation to obtain a mixture C.

(4) Adding a hindered amine light stabilizer and benzophenone into a 25 wt% ammonium chloride solution, uniformly mixing, stirring at 50-60 ℃ for 1h, then adding ammonium polyphosphate and triphenyl phosphate, continuously stirring for 0.5h, cooling to room temperature, and drying to obtain the organic modifier.

(5) And uniformly mixing the mixture A, the mixture B, the mixture C, 3 parts of silane coupling agent and 8 parts of organic modifier in a mixer, drying, putting into a double-screw extruder, and performing melt extrusion and granulation to obtain the high-weather-resistant flame-retardant resin tile material.

The preparation method of the modified plant fiber comprises the following steps: soaking the plant fiber in 10 wt% NaOH solution at 60-70 deg.c for 0.5 hr, adding the mixed solution of diethanolamide and polyglycol, heating to 100 deg.c and 120 deg.c, soaking for 3-4 hr, filtering and drying to obtain the modified plant fiber. Wherein the mass ratio of the diethanolamide to the polyethylene glycol to the NaOH solution is 2.5: 1: 6.

the preparation method of the modified ASA resin comprises the following steps: adding 100 parts of ASA resin into a mixed solution of 230 parts of phospholipid and 80 parts of sodium stearate, then adding 3 parts of butyl titanate, stirring for 2 hours at the temperature of 60-80 ℃, then adding 500 parts of 10 wt% sodium ethoxide solution, continuing stirring for 1 hour, cooling to room temperature, filtering, washing with deionized water to be neutral, and drying to obtain the modified ASA resin.

The organic modifier comprises the following components in parts by mass: 5 parts of hindered amine light stabilizer, 8 parts of benzophenone, 10 parts of ammonium polyphosphate and 30 parts of triphenyl phosphate.

Example 3A highly weather-resistant flame-retardant resin tile

A preparation method of a high weather-resistant flame-retardant resin tile specifically comprises the following steps:

(1) adding 9 parts of yttrium oxide and 18 parts of alumina fiber into 54 parts of 50 wt% acetic acid solution, stirring for 1 hour, then adding 1.8 parts of environment-friendly soybean oil and 2.7 parts of polyvinyl alcohol, uniformly mixing, heating to 80-90 ℃, and stirring for 3-4 hours to obtain a mixture A.

(2) Mixing 12 parts of modified plant fiber and 6 parts of modified ASA resin, then adding 0.72 part of tributyl citrate, stirring for 1h, then adding 2.4 parts of polyethylene glycol, heating to 60-80 ℃, and stirring for 2-3h to obtain a mixture B.

(3) Heating a two-roll plastic mixing machine to 100-120 ℃, sequentially putting 100 parts of polyphenyl ether, 40 parts of ethylene propylene diene monomer and 15 parts of organic bentonite into the two-roll plastic mixing machine for mixing until the materials are molten, then adding 3 parts of tristearin and 2 parts of vulcanizing agent, mixing uniformly, and then putting the mixture into a double-screw extruder for extrusion and granulation to obtain a mixture C.

(4) Adding a hindered amine light stabilizer and benzophenone into a 25 wt% ammonium chloride solution, uniformly mixing, stirring at 50-60 ℃ for 1h, then adding ammonium polyphosphate and triphenyl phosphate, continuously stirring for 0.5h, cooling to room temperature, and drying to obtain the organic modifier.

(5) And uniformly mixing the mixture A, the mixture B, the mixture C, 4 parts of silane coupling agent and 6 parts of organic modifier in a mixer, drying, putting into a double-screw extruder, and performing melt extrusion and granulation to obtain the high-weather-resistant flame-retardant resin tile material.

The preparation method of the modified plant fiber comprises the following steps: soaking the plant fiber in 8 wt% NaOH solution at 60-70 deg.c for 0.5 hr, adding the mixed solution of diethanolamide and polyglycol, heating to 100 deg.c and 120 deg.c, soaking for 3-4 hr, filtering and drying to obtain the modified plant fiber. Wherein the mass ratio of the diethanolamide to the polyethylene glycol to the NaOH solution is 2: 1: 7.

the preparation method of the modified ASA resin comprises the following steps: adding 100 parts of ASA resin into a mixed solution of 180 parts of phospholipid and 120 parts of sodium stearate, then adding 5 parts of butyl titanate, stirring for 2 hours at the temperature of 60-80 ℃, then adding 380 parts of 10 wt% sodium ethoxide solution, continuing stirring for 1 hour, cooling to room temperature, filtering, washing with deionized water to be neutral, and drying to obtain the modified ASA resin.

The organic modifier comprises the following components in parts by mass: 8 parts of hindered amine light stabilizer, 5 parts of benzophenone, 11 parts of ammonium polyphosphate and 26 parts of triphenyl phosphate.

Example 4A high weather resistant flame retardant resin tile

A preparation method of a high weather-resistant flame-retardant resin tile specifically comprises the following steps:

(1) adding 10 parts of yttrium oxide and 10 parts of alumina fiber into 60 parts of 50 wt% acetic acid solution, stirring for 1h, then adding 2 parts of environment-friendly soybean oil and 4 parts of polyvinyl alcohol, uniformly mixing, heating to 80-90 ℃, and stirring for 3-4h to obtain a mixture A.

(2) Mixing 13 parts of modified plant fiber and 6.5 parts of modified ASA resin, adding 0.9 part of tributyl citrate, stirring for 1h, adding 2 parts of polyethylene glycol, heating to 60-80 ℃, and stirring for 2-3h to obtain a mixture B.

(3) Heating a two-roll plastic mixing machine to 100-120 ℃, sequentially putting 100 parts of polyphenyl ether, 50 parts of ethylene propylene diene monomer and 12 parts of organic bentonite into the two-roll plastic mixing machine for mixing until the materials are molten, then adding 4 parts of glyceryl tristearate and 3 parts of vulcanizing agent, mixing uniformly, and then putting the mixture into a double-screw extruder for extrusion and granulation to obtain a mixture C.

(4) Adding a hindered amine light stabilizer and benzophenone into a 25 wt% ammonium chloride solution, uniformly mixing, stirring at 50-60 ℃ for 1h, then adding ammonium polyphosphate and triphenyl phosphate, continuously stirring for 0.5h, cooling to room temperature, and drying to obtain the organic modifier.

(5) And uniformly mixing the mixture A, the mixture B, the mixture C, 5 parts of silane coupling agent and 5 parts of organic modifier in a mixer, drying, putting into a double-screw extruder, and performing melt extrusion and granulation to obtain the high-weather-resistant flame-retardant resin tile material.

The preparation method of the modified plant fiber comprises the following steps: soaking the plant fiber in 10 wt% NaOH solution at 60-70 deg.c for 0.5 hr, adding the mixed solution of diethanolamide and polyglycol, heating to 100 deg.c and 120 deg.c, soaking for 3-4 hr, filtering and drying to obtain the modified plant fiber. Wherein the mass ratio of the diethanolamide to the polyethylene glycol to the NaOH solution is 1.5: 1: 6.

the preparation method of the modified ASA resin comprises the following steps: adding 100 parts of ASA resin into a mixed solution of 200 parts of phospholipid and 100 parts of sodium stearate, then adding 6 parts of butyl titanate, stirring for 2 hours at the temperature of 60-80 ℃, then adding 400 parts of 10 wt% sodium ethoxide solution, continuing stirring for 1 hour, cooling to room temperature, filtering, washing with deionized water to be neutral, and drying to obtain the modified ASA resin.

The organic modifier comprises the following components in parts by mass: 7 parts of hindered amine light stabilizer, 7 parts of benzophenone, 12 parts of ammonium polyphosphate and 25 parts of triphenyl phosphate.

Comparative example 1 a resin tile Material

The components and preparation method in this comparative example are the same as in example 4, with specific reference to example 4, except that no ethylene propylene diene monomer is added in this comparative example.

Comparative 2A resin Tile Material

The components and preparation method in this comparative example are the same as in example 4, with specific reference to example 4, except that no modified vegetable fiber was added in this comparative example.

Comparison of 3A resin Tile Material

The components and preparation method in this comparative example were the same as in example 4, with specific reference to example 4, except that no modified ASA resin was added to this comparative example.

Comparative 4A resin tile Material

The components and preparation method in this comparative example are the same as in example 4, with specific reference to example 4, except that no organic modifier is added in this comparative example.

The resin tile materials of the above examples 1-4 and comparative examples 1-4 were prepared into test samples, and mechanical property tests were performed, and the test results are shown in table 1 below.

TABLE 1 mechanical property test result table for resin tile material

	Tensile strength MPa	Yield strength MPa	Elongation at break%	Impact strength J/m
					Example 1	113.7	132.4	96.1	189.4
Example 2	119.6	145.8	95.7	194.3
					Example 3	125.4	141.3	105.4	199.5
Example 4	130.5	152.9	109.8	205.4
					Comparative example 1	95.8	121.9	68.7	148.4
Comparative example 2	86.7	110.3	75.4	152.9
					Comparative example 3	108.4	125.7	92.8	178.5
Comparative example 4	103.7	123.3	89.5	175.4

As can be seen from the test results in Table 1, the present invention has excellent strength and toughness. The ethylene propylene diene monomer is added, so that the impact strength and toughness of the invention are obviously improved; the modified plant fiber is added, so that the mechanical strength of the resin tile is greatly improved, and the toughness of the resin tile is increased.

The resin tile materials prepared according to the above examples 1 to 4 and comparative examples 1 to 4 were compared to each other for flame retardancy, weather resistance and solvent resistance and the test results are shown in Table 2.

And (3) weather resistance test: irradiating with a sunlight carbon arc lamp type tester for more than 300h to change the resin tile.

Solvent resistance test: dropping medicine on the surface of the resin tile, washing with water after 6h, and then standing at room temperature for 24h to observe the change condition of the surface.

TABLE 2 resin tile material performance test results table

The test results in Table 2 show that the invention has excellent weather resistance and flame retardance, and when the organic modifier or the modified ASA resin is added, the weather resistance and the flame retardance of the resin tile are both improved.

The features of the above-described embodiments may be combined in any combination, and for the sake of brevity, all possible combinations of features in the above-described embodiments will not be described in detail, but rather, unless there is a conflict between such combinations of features, the scope of the present disclosure should be considered to be within the scope of the present disclosure.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, many variations and modifications can be made without departing from the spirit of the invention, which falls within the scope of the invention.

Claims (10)

1. The preparation method of the high weather-resistant flame-retardant resin tile material is characterized by comprising the following steps:

(1) adding yttrium oxide and alumina fiber into 50 wt% acetic acid solution, stirring for 1h, adding environment-friendly soybean oil and polyvinyl alcohol, mixing uniformly, heating to 80-90 ℃, and stirring for 3-4h to obtain a mixture A;

(2) mixing modified plant fiber and modified ASA resin, adding tributyl citrate, stirring for 1h, adding polyethylene glycol, heating to 60-80 deg.C, stirring for 2-3h to obtain mixture B;

(3) heating a two-roll plastic mixing machine to 100-120 ℃, sequentially putting polyphenyl ether, ethylene propylene diene monomer and organic bentonite into the two-roll plastic mixing machine for mixing until the materials are molten, adding glyceryl tristearate and a vulcanizing agent, mixing uniformly, and putting the mixture into a double-screw extruder for extrusion and granulation to prepare a mixture C;

(4) adding a hindered amine light stabilizer and benzophenone into a 25 wt% ammonium chloride solution, uniformly mixing, stirring at 50-60 ℃ for 1h, then adding ammonium polyphosphate and triphenyl phosphate, continuously stirring for 0.5h, cooling to room temperature, and drying to obtain the organic modifier.

(5) And uniformly mixing the mixture A, the mixture B, the mixture C, the silane coupling agent and the organic modifier in a mixer, drying, putting into a double-screw extruder, and performing melt extrusion and granulation to obtain the high-weather-resistance flame-retardant resin tile material.

2. The method for preparing the high weather-resistant flame-retardant resin tile material as claimed in claim 1, wherein the method for preparing the modified plant fiber comprises the following steps: soaking the plant fiber in 5-10 wt% NaOH solution at 60-70 deg.c for 0.5 hr, adding the mixed solution of diethanolamide and polyglycol, heating to 120 deg.c, soaking for 3-4 hr, filtering and drying to obtain modified plant fiber.

3. The method for preparing the high weather-resistant flame-retardant resin tile material as claimed in claim 2, wherein the mass ratio of the diethanolamide to the polyethylene glycol to the NaOH solution is (1-2.5): 1: (5-7).

4. The method for preparing the high weather-resistant flame-retardant resin tile material as claimed in claim 1, wherein the method for preparing the modified ASA resin comprises the following steps: adding ASA resin into a mixed solution of phospholipid and sodium stearate, adding butyl titanate, stirring at 60-80 ℃ for 2h, adding 10% sodium ethoxide solution, stirring for 1h, cooling to room temperature, filtering, washing with deionized water to neutrality, and drying to obtain the modified ASA resin.

5. The method for preparing the high weather-resistant flame-retardant resin tile material as claimed in claim 4, wherein the mass ratio of the ASA resin to the phospholipid to the sodium stearate is 1: (1.5-2.3): (0.8-1.6), wherein the mass ratio of the ASA resin to the sodium glycolate is 1: (3-5), wherein the mass ratio of the butyl titanate to the ASA resin is (0.03-0.08): 1.

6. the method for preparing the high weather-resistant flame-retardant resin tile material according to claim 1, wherein in the step (1), the mass ratio of the yttrium oxide to the aluminum oxide fiber to the acetic acid solution is 1: (1-2): (5-7), wherein the mass ratio of the yttrium oxide to the environment-friendly soybean oil to the polyvinyl alcohol is 1: (0.1-0.3): (0.2-0.5).

7. The method for preparing the high weather-resistant flame-retardant resin tile material as claimed in claim 1, wherein in the step (2), the mass ratio of the modified plant fiber to the modified ASA resin is 2: 1, the mass ratio of the modified plant fiber to the tributyl citrate to the polyethylene glycol is 1: (0.05-0.08): (0.1-0.2).

8. The method for preparing the high weather-resistant flame-retardant resin tile material as claimed in claim 1, wherein in the step (3), the mass ratio of the polyphenyl ether to the ethylene propylene diene monomer to the organic bentonite is 1: (0.2-0.6): (0.1-0.2), wherein the mass of the glyceryl tristearate is 2-4% of the mass of the polyphenylene ether, and the mass of the vulcanizing agent is 1-3% of the mass of the polyphenylene ether.

9. The method for preparing the high weather-resistant flame-retardant resin tile material as claimed in claim 1, wherein the mass of the yttrium oxide is 8-10% of the mass of the polyphenylene ether, the mass of the modified plant fiber is 10-15% of the mass of the polyphenylene ether, the mass of the silane coupling agent is 3-5% of the mass of the polyphenylene ether, and the mass of the organic modifier is 4-8% of the mass of the polyphenylene ether.

10. The preparation method of the high weather-resistant flame-retardant resin tile material as claimed in claim 1, wherein the organic modifier comprises the following components in parts by mass: 5-10 parts of hindered amine light stabilizer, 3-8 parts of benzophenone, 10-15 parts of ammonium polyphosphate and 20-30 parts of triphenyl phosphate.