CN114957964A - Degradable automobile foot mat material and preparation method thereof - Google Patents
Degradable automobile foot mat material and preparation method thereof Download PDFInfo
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
The invention discloses a degradable automobile foot mat material and a preparation method thereof; relating to the technical field of foot pad material production, the invention discloses a degradable automobile foot pad material which is prepared from the following components: bagasse/wheat straw composite polyurethane, stearic acid, a plasticizer, polyvinyl chloride resin, a coupling agent, color master batches, glass fibers, chlorinated paraffin, calcium carbonate and maleic anhydride, and the bagasse/wheat straw composite polyurethane is introduced to enable the automobile foot mat to have good biodegradability, so that the pollution to the environment is reduced; the introduction of the epoxidized soybean oil mainly weakens the secondary valence bonds among resin molecules, increases the mobility of the resin molecular bonds, reduces the crystallinity of the resin molecules, increases the plasticity of the resin molecules, enhances the flexibility of the resin molecules, is easy to process, and can improve the tensile strength of the automobile foot pad material by adding the glass fiber.
Description
Technical Field
The invention belongs to the technical field of foot pad material production, and particularly relates to a degradable automobile foot pad material and a preparation method thereof.
Background
Along with the popularization of automobiles, in order to improve the cleanness in automobiles, automobile foot pads are required to be protected, so the automobile foot pads become indispensable consumer goods for people, meanwhile, due to the improvement of the living standard of people, people have more and more requirements on the automobile foot pads, and the automobile foot pads are comfortable, attractive, environment-friendly, dirty-resistant, easy to clean, safe and flame-retardant, and become hot spots for the research of the automobile foot pad industry. Most of the existing conventional car foot pads use polyvinyl chloride (PVC) or rubber as a main material. However, with the continuous improvement of the cultural quality level of people, the environmental awareness is stronger and stronger, and the automobile foot pad made of PVC and rubber which are main materials cannot be degraded in a short time, people increasingly realize the pollution of the PVC and the rubber to the environment, and the strong stability of the PVC and the rubber can exist in the natural environment for a long time after being abandoned, so that one of important pollution sources of production and life of people is caused.
Therefore, further improvements to the prior art are needed to improve the degradability of car foot mat materials.
Disclosure of Invention
The invention aims to provide a degradable automobile foot mat material and a preparation method thereof, and aims to overcome the defects in the prior art.
The technical scheme adopted by the invention is as follows:
a degradable automobile foot pad material is prepared from the following components in parts by weight: 88-95 parts of bagasse/wheat straw composite polyurethane, 3-6 parts of stearic acid, 10-15 parts of plasticizer, 5-8 parts of polyvinyl chloride resin, 1-2 parts of coupling agent, 7-10 parts of color master batch, 2.5-3 parts of glass fiber, 1-3 parts of chlorinated paraffin, 20-25 parts of calcium carbonate and 1-3 parts of maleic anhydride.
As a further technical scheme: the plasticizer is epoxidized soybean oil.
As a further technical scheme: the preparation method of the bagasse/wheat straw composite polyurethane comprises the following steps:
(1) collecting bagasse, firstly feeding the bagasse into a crusher for crushing treatment, then carrying out hydrolysis treatment on the bagasse for 1 hour by using a hydrolysis solution, and then filtering, cleaning and drying the bagasse to obtain the hydrolysis-treated bagasse;
(2) cleaning wheat straws, and then sending the wheat straws into a pulverizer for pulverization treatment to obtain pulverized wheat straws;
(3) uniformly mixing the hydrolysis-treated bagasse and crushed wheat straw to obtain a mixture;
(4) mixing the mixture and a sodium hydroxide solution together, adjusting the temperature to 80 ℃, keeping the temperature and stirring for 2 hours, then performing rotary evaporation drying, and performing secondary crushing to obtain powder;
(5) and (3) sequentially adding the crushed polyurethane resin into an extruder for melting and basic granulation to obtain bagasse/wheat straw composite polyurethane.
As a further technical scheme: the preparation method of the solution comprises the following steps:
sequentially adding sodium hydroxide, sodium citrate, vinyl trimethoxy silane, ethanol and clear water into a stirrer and uniformly stirring to obtain the product;
the stirring speed is 250 r/min.
As a further technical scheme: the mixing weight ratio of the sodium hydroxide, the sodium citrate, the vinyl trimethoxy silane, the ethanol and the clear water is 10:1:2:6: 100.
As a further technical scheme: the mixing mass ratio of the bagasse to the hydrolysis solution is 1: 20.
As a further technical scheme: the mixing mass ratio of the hydrolysis-treated bagasse to the crushed wheat straw is 10: 3;
the mixing mass ratio of the mixture to the sodium hydroxide solution is 1: 20;
the mass fraction of the sodium hydroxide solution is 5 percent;
the mixing mass ratio of the crushed polyurethane resin to the polyurethane resin is 1: 3.
As a further technical scheme, the coupling agent is a titanate coupling agent.
A preparation method of a degradable automobile foot mat material comprises the following steps: the method comprises the following steps:
(1) weighing bagasse/wheat straw composite polyurethane, stearic acid, a plasticizer, polyvinyl chloride resin, a coupling agent, color master batches, glass fiber, chlorinated paraffin, calcium carbonate and maleic anhydride in parts by weight;
(2) sequentially adding bagasse/wheat straw composite polyurethane, stearic acid, a plasticizer, polyvinyl chloride resin, a coupling agent, color master batches, glass fibers, chlorinated paraffin, calcium carbonate and maleic anhydride into a high-speed mixer to mix for 30min, wherein the mixing speed is 2000r/min, and obtaining uniform prepared materials;
(3) adding the obtained uniform prepared materials into a drying machine for drying treatment, wherein the drying temperature is 60 ℃, and the drying time is 4 hours, so as to obtain a dried material;
(4) and adding the obtained dry material into a double-screw extruder for melt extrusion granulation to obtain the composite material.
The glass fiber is an inorganic non-metallic material with excellent performance, has the advantages of good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, but has the defects of brittleness and poor wear resistance. The hair-care fiber is prepared from six kinds of ores of pyrophyllite, quartz sand, limestone, dolomite, borocalcite and boromagnesite through the processes of high-temperature melting, wire drawing, winding, weaving and the like, wherein the diameter of each monofilament ranges from several micrometers to twenty micrometers, the monofilament is equivalent to 1/20-1/5 of one hair, and each bundle of fiber precursor consists of hundreds of even thousands of monofilaments. According to the invention, by introducing a certain amount of glass fiber, the mechanical property of the automobile foot pad material can be greatly improved, and the phenomenon that the mechanical property of the automobile foot pad material is reduced due to the introduction of degradable materials can be effectively improved.
The bagasse/wheat straw composite polyurethane introduced by the invention is compounded with the polyurethane by degradable materials, and the combination compatibility between the bagasse/wheat straw and the polyurethane can be greatly improved by processing the bagasse/wheat straw, so that the conditions of poor compatibility and greatly reduced mechanical property caused by directly mixing the bagasse/wheat straw and the polyurethane are avoided, the bagasse/wheat straw composite polyurethane not only maintains higher mechanical property, but also has excellent biodegradability, and the wastes can be effectively degraded under the action of microorganisms in soil.
Advantageous effects
The degradable automobile foot mat material prepared by the invention has good biodegradability by introducing bagasse/wheat straw composite polyurethane, thereby reducing the pollution to the environment; the introduction of the epoxidized soybean oil mainly weakens the secondary valence bonds among resin molecules, increases the mobility of the resin molecular bonds, reduces the crystallinity of the resin molecules, increases the plasticity of the resin molecules, enhances the flexibility of the resin molecules, is easy to process, and can improve the tensile strength of the automobile foot pad material by adding the glass fiber.
Detailed Description
A degradable automobile foot pad material is prepared from the following components in parts by weight: 88-95 parts of bagasse/wheat straw composite polyurethane, 3-6 parts of stearic acid, 10-15 parts of plasticizer, 5-8 parts of polyvinyl chloride resin, 1-2 parts of coupling agent, 7-10 parts of color master batch, 2.5-3 parts of glass fiber, 1-3 parts of chlorinated paraffin, 20-25 parts of calcium carbonate and 1-3 parts of maleic anhydride.
The plasticizer is epoxidized soybean oil.
The preparation method of the bagasse/wheat straw composite polyurethane comprises the following steps:
(1) collecting bagasse, firstly feeding the bagasse into a crusher for crushing treatment, then carrying out hydrolysis treatment on the bagasse for 1 hour by using a hydrolysis solution, and then filtering, cleaning and drying the bagasse to obtain the hydrolysis-treated bagasse;
(2) cleaning wheat straws, and then sending the wheat straws into a pulverizer for pulverization treatment to obtain pulverized wheat straws;
(3) uniformly mixing the hydrolysis-treated bagasse and crushed wheat straw to obtain a mixture;
(4) mixing the mixture and a sodium hydroxide solution together, adjusting the temperature to 80 ℃, keeping the temperature and stirring for 2 hours, then performing rotary evaporation drying, and performing secondary crushing to obtain powder;
(5) and (3) sequentially adding the crushed polyurethane resin into an extruder for melting and basic granulation to obtain the bagasse/wheat straw composite polyurethane.
The preparation method of the relieving liquid comprises the following steps:
sequentially adding sodium hydroxide, sodium citrate, vinyl trimethoxy silane, ethanol and clear water into a stirrer and uniformly stirring to obtain the sodium-modified potassium-zinc-aluminum phosphate;
the stirring speed is 250 r/min.
The mixing weight ratio of the sodium hydroxide to the sodium citrate to the vinyl trimethoxy silane to the ethanol to the clean water is 10:1:2:6: 100.
The mixing mass ratio of the bagasse to the hydrolysis solution is 1: 20.
Mixing the hydrolysis-treated bagasse and the crushed wheat straw in a mass ratio of 10: 3;
the mixing mass ratio of the mixture to the sodium hydroxide solution is 1: 20;
the mass fraction of the sodium hydroxide solution is 5 percent;
the mixing mass ratio of the crushed polyurethane resin to the polyurethane resin is 1: 3.
The coupling agent is titanate coupling agent.
A preparation method of a degradable automobile foot mat material comprises the following steps: the method comprises the following steps:
(1) weighing bagasse/wheat straw composite polyurethane, stearic acid, a plasticizer, polyvinyl chloride resin, a coupling agent, color master batches, glass fiber, chlorinated paraffin, calcium carbonate and maleic anhydride in parts by weight;
(2) sequentially adding bagasse/wheat straw composite polyurethane, stearic acid, a plasticizer, polyvinyl chloride resin, a coupling agent, color master batches, glass fibers, chlorinated paraffin, calcium carbonate and maleic anhydride into a high-speed mixer to mix for 30min, wherein the mixing speed is 2000r/min, and obtaining uniform prepared materials;
(3) adding the obtained uniform prepared materials into a drying machine for drying treatment, wherein the drying temperature is 60 ℃, and the drying time is 4 hours, so as to obtain a dried material;
(4) and adding the obtained dry material into a double-screw extruder for melt extrusion granulation to obtain the composite material.
The following will clearly and completely describe the technical solutions of the embodiments of the present invention, 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.
Example 1
A degradable automobile foot pad material is prepared from the following components in parts by weight: 88 parts of bagasse/wheat straw composite polyurethane, 3 parts of stearic acid, 10 parts of plasticizer, 5 parts of polyvinyl chloride resin, 1 part of coupling agent, 7 parts of color master batch, 2.5 parts of glass fiber, 1 part of chlorinated paraffin, 20 parts of calcium carbonate and 1 part of maleic anhydride.
The plasticizer is epoxidized soybean oil.
The preparation method of the bagasse/wheat straw composite polyurethane comprises the following steps:
(1) collecting bagasse, firstly feeding the bagasse into a crusher for crushing treatment, then carrying out hydrolysis treatment on the bagasse for 1 hour by using a hydrolysis solution, and then filtering, cleaning and drying the bagasse to obtain the hydrolysis-treated bagasse;
(2) cleaning wheat straws, and then sending the wheat straws into a grinder for grinding treatment to obtain ground wheat straws;
(3) uniformly mixing the hydrolysis-treated bagasse and crushed wheat straw to obtain a mixture;
(4) mixing the mixture and a sodium hydroxide solution together, adjusting the temperature to 80 ℃, keeping the temperature and stirring for 2 hours, then performing rotary evaporation drying, and performing secondary crushing to obtain powder;
(5) and (3) sequentially adding the crushed polyurethane resin into an extruder for melting and basic granulation to obtain the bagasse/wheat straw composite polyurethane.
The preparation method of the relieving liquid comprises the following steps:
sequentially adding sodium hydroxide, sodium citrate, vinyl trimethoxy silane, ethanol and clear water into a stirrer and uniformly stirring to obtain the sodium-modified potassium-zinc-aluminum phosphate;
the stirring speed is 250 r/min.
The mixing weight ratio of the sodium hydroxide to the sodium citrate to the vinyl trimethoxy silane to the ethanol to the clean water is 10:1:2:6: 100.
The mixing mass ratio of the bagasse to the hydrolysis solution is 1: 20.
Mixing the hydrolysis-treated bagasse and the crushed wheat straw in a mass ratio of 10: 3;
the mixing mass ratio of the mixture to the sodium hydroxide solution is 1: 20;
the mass fraction of the sodium hydroxide solution is 5 percent;
the mixing mass ratio of the crushed polyurethane resin to the polyurethane resin is 1: 3.
The coupling agent is titanate coupling agent.
A preparation method of a degradable automobile foot mat material comprises the following steps: the method comprises the following steps:
(1) weighing bagasse/wheat straw composite polyurethane, stearic acid, a plasticizer, polyvinyl chloride resin, a coupling agent, color master batches, glass fiber, chlorinated paraffin, calcium carbonate and maleic anhydride in parts by weight;
(2) sequentially adding bagasse/wheat straw composite polyurethane, stearic acid, a plasticizer, polyvinyl chloride resin, a coupling agent, color master batches, glass fibers, chlorinated paraffin, calcium carbonate and maleic anhydride into a high-speed mixer to mix for 30min, wherein the mixing speed is 2000r/min, and obtaining uniform prepared materials;
(3) adding the obtained uniform prepared materials into a drying machine for drying treatment, wherein the drying temperature is 60 ℃, and the drying time is 4 hours, so as to obtain a dried material;
(4) and adding the obtained dry material into a double-screw extruder for melt extrusion granulation to obtain the composite material.
Example 2
A degradable automobile foot pad material is prepared from the following components in parts by weight: 90 parts of bagasse/wheat straw composite polyurethane, 4 parts of stearic acid, 12 parts of plasticizer, 6 parts of polyvinyl chloride resin, 1.2 parts of coupling agent, 8 parts of color master batch, 2.7 parts of glass fiber, 2 parts of chlorinated paraffin, 22 parts of calcium carbonate and 2 parts of maleic anhydride.
The plasticizer is epoxidized soybean oil.
The preparation method of the bagasse/wheat straw composite polyurethane comprises the following steps:
(1) collecting bagasse, firstly feeding the bagasse into a crusher for crushing treatment, then carrying out hydrolysis treatment on the bagasse for 1 hour by using a hydrolysis solution, and then filtering, cleaning and drying the bagasse to obtain the hydrolysis-treated bagasse;
(2) cleaning wheat straws, and then sending the wheat straws into a pulverizer for pulverization treatment to obtain pulverized wheat straws;
(3) uniformly mixing the hydrolysis-treated bagasse and crushed wheat straw to obtain a mixture;
(4) mixing the mixture and a sodium hydroxide solution together, adjusting the temperature to 80 ℃, keeping the temperature and stirring for 2 hours, then performing rotary evaporation drying, and performing secondary crushing to obtain powder;
(5) and (3) sequentially adding the crushed polyurethane resin into an extruder for melting and basic granulation to obtain the bagasse/wheat straw composite polyurethane.
The preparation method of the relieving liquid comprises the following steps:
sequentially adding sodium hydroxide, sodium citrate, vinyl trimethoxy silane, ethanol and clear water into a stirrer and uniformly stirring to obtain the product;
the stirring speed is 250 r/min.
The mixing weight ratio of the sodium hydroxide to the sodium citrate to the vinyl trimethoxy silane to the ethanol to the clean water is 10:1:2:6: 100.
The mixing mass ratio of the bagasse to the hydrolysis solution is 1: 20.
Mixing the hydrolysis-treated bagasse and the crushed wheat straw in a mass ratio of 10: 3;
the mixing mass ratio of the mixture to the sodium hydroxide solution is 1: 20;
the mass fraction of the sodium hydroxide solution is 5 percent;
the mixing mass ratio of the crushed polyurethane resin to the polyurethane resin is 1: 3.
The coupling agent is titanate coupling agent.
A preparation method of a degradable automobile foot mat material comprises the following steps: the method comprises the following steps:
(1) weighing bagasse/wheat straw composite polyurethane, stearic acid, a plasticizer, polyvinyl chloride resin, a coupling agent, color master batches, glass fiber, chlorinated paraffin, calcium carbonate and maleic anhydride in parts by weight;
(2) sequentially adding bagasse/wheat straw composite polyurethane, stearic acid, a plasticizer, polyvinyl chloride resin, a coupling agent, color master batches, glass fibers, chlorinated paraffin, calcium carbonate and maleic anhydride into a high-speed mixer to mix for 30min, wherein the mixing speed is 2000r/min, and obtaining uniform prepared materials;
(3) adding the obtained uniform prepared materials into a drying machine for drying treatment, wherein the drying temperature is 60 ℃, and the drying time is 4 hours, so as to obtain a dried material;
(4) and adding the obtained dry material into a double-screw extruder for melt extrusion granulation to obtain the composite material.
Example 3
A degradable automobile foot pad material is prepared from the following components in parts by weight: 92 parts of bagasse/wheat straw composite polyurethane, 5 parts of stearic acid, 13 parts of plasticizer, 7 parts of polyvinyl chloride resin, 1.8 parts of coupling agent, 9 parts of color master batch, 2.8 parts of glass fiber, 2.5 parts of chlorinated paraffin, 24 parts of calcium carbonate and 2 parts of maleic anhydride.
The plasticizer is epoxidized soybean oil.
The preparation method of the bagasse/wheat straw composite polyurethane comprises the following steps:
(1) collecting bagasse, firstly feeding the bagasse into a crusher for crushing treatment, then carrying out hydrolysis treatment on the bagasse for 1 hour by using a hydrolysis solution, and then filtering, cleaning and drying the bagasse to obtain the hydrolysis-treated bagasse;
(2) cleaning wheat straws, and then sending the wheat straws into a pulverizer for pulverization treatment to obtain pulverized wheat straws;
(3) uniformly mixing the hydrolysis-treated bagasse and crushed wheat straw to obtain a mixture;
(4) mixing the mixture and a sodium hydroxide solution together, adjusting the temperature to 80 ℃, keeping the temperature and stirring for 2 hours, then performing rotary evaporation drying, and performing secondary crushing to obtain powder;
(5) and (3) sequentially adding the crushed polyurethane resin into an extruder for melting and basic granulation to obtain the bagasse/wheat straw composite polyurethane.
The preparation method of the relieving liquid comprises the following steps:
sequentially adding sodium hydroxide, sodium citrate, vinyl trimethoxy silane, ethanol and clear water into a stirrer and uniformly stirring to obtain the sodium-modified potassium-zinc-aluminum phosphate;
the stirring speed is 250 r/min.
The mixing weight ratio of the sodium hydroxide to the sodium citrate to the vinyl trimethoxy silane to the ethanol to the clean water is 10:1:2:6: 100.
The mixing mass ratio of the bagasse to the hydrolysis solution is 1: 20.
Mixing the hydrolysis-treated bagasse and the crushed wheat straw in a mass ratio of 10: 3;
the mixing mass ratio of the mixture to the sodium hydroxide solution is 1: 20;
the mass fraction of the sodium hydroxide solution is 5 percent;
the mixing mass ratio of the crushed polyurethane resin to the polyurethane resin is 1: 3.
The coupling agent is titanate coupling agent.
A preparation method of a degradable automobile foot mat material comprises the following steps: the method comprises the following steps:
(1) weighing bagasse/wheat straw composite polyurethane, stearic acid, a plasticizer, polyvinyl chloride resin, a coupling agent, color master batches, glass fiber, chlorinated paraffin, calcium carbonate and maleic anhydride in parts by weight;
(2) sequentially adding bagasse/wheat straw composite polyurethane, stearic acid, a plasticizer, polyvinyl chloride resin, a coupling agent, color master batches, glass fibers, chlorinated paraffin, calcium carbonate and maleic anhydride into a high-speed mixer to mix for 30min, wherein the mixing speed is 2000r/min, and obtaining uniform prepared materials;
(3) adding the obtained uniform prepared materials into a drying machine for drying treatment, wherein the drying temperature is 60 ℃, and the drying time is 4 hours, so as to obtain a dried material;
(4) and adding the obtained dry material into a double-screw extruder for melt extrusion granulation to obtain the composite material.
Example 4
A degradable automobile foot pad material is prepared from the following components in parts by weight: 95 parts of bagasse/wheat straw composite polyurethane, 6 parts of stearic acid, 15 parts of plasticizer, 8 parts of polyvinyl chloride resin, 2 parts of coupling agent, 10 parts of color master batch, 3 parts of glass fiber, 3 parts of chlorinated paraffin, 25 parts of calcium carbonate and 3 parts of maleic anhydride.
The plasticizer is epoxidized soybean oil.
The preparation method of the bagasse/wheat straw composite polyurethane comprises the following steps:
(1) collecting bagasse, firstly feeding the bagasse into a crusher for crushing treatment, then carrying out hydrolysis treatment on the bagasse for 1 hour by using a hydrolysis solution, and then filtering, cleaning and drying the bagasse to obtain the hydrolysis-treated bagasse;
(2) cleaning wheat straws, and then sending the wheat straws into a pulverizer for pulverization treatment to obtain pulverized wheat straws;
(3) uniformly mixing the hydrolysis-treated bagasse and crushed wheat straw to obtain a mixture;
(4) mixing the mixture and a sodium hydroxide solution together, adjusting the temperature to 80 ℃, keeping the temperature and stirring for 2 hours, then performing rotary evaporation drying, and performing secondary crushing to obtain powder;
(5) and (3) sequentially adding the crushed polyurethane resin into an extruder for melting and basic granulation to obtain the bagasse/wheat straw composite polyurethane.
The preparation method of the relieving liquid comprises the following steps:
sequentially adding sodium hydroxide, sodium citrate, vinyl trimethoxy silane, ethanol and clear water into a stirrer and uniformly stirring to obtain the sodium-modified potassium-zinc-aluminum phosphate;
the stirring speed is 250 r/min.
The mixing weight ratio of the sodium hydroxide to the sodium citrate to the vinyl trimethoxy silane to the ethanol to the clean water is 10:1:2:6: 100.
The mixing mass ratio of the bagasse to the hydrolysis solution is 1: 20.
Mixing the hydrolysis-treated bagasse and the crushed wheat straw in a mass ratio of 10: 3;
the mixing mass ratio of the mixture to the sodium hydroxide solution is 1: 20;
the mass fraction of the sodium hydroxide solution is 5 percent;
the mixing mass ratio of the crushed polyurethane resin to the polyurethane resin is 1: 3.
The coupling agent is titanate coupling agent.
A preparation method of a degradable automobile foot mat material comprises the following steps: the method comprises the following steps:
(1) weighing bagasse/wheat straw composite polyurethane, stearic acid, a plasticizer, polyvinyl chloride resin, a coupling agent, color master batches, glass fiber, chlorinated paraffin, calcium carbonate and maleic anhydride in parts by weight;
(2) sequentially adding bagasse/wheat straw composite polyurethane, stearic acid, a plasticizer, polyvinyl chloride resin, a coupling agent, color master batches, glass fibers, chlorinated paraffin, calcium carbonate and maleic anhydride into a high-speed mixer to mix for 30min, wherein the mixing speed is 2000r/min, and obtaining uniform prepared materials;
(3) adding the obtained uniform prepared materials into a drying machine for drying treatment, wherein the drying temperature is 60 ℃, and the drying time is 4 hours, so as to obtain a dried material;
(4) and adding the obtained dry material into a double-screw extruder for melt extrusion granulation to obtain the composite material.
Comparative example 1: the difference from example 1 is that bagasse/wheat straw composite polyurethane was replaced with polyurethane resin.
Comparative example 2: the difference from the example 1 is that bagasse is not added into the bagasse/wheat straw composite polyurethane.
Comparative example 3: the difference from example 1 is that no glass fiber is added.
Test of
The samples of the examples and the comparative examples are subjected to degradation performance detection, and the samples are tested according to GB/T19277;
TABLE 1
| Percent degradation (180 d)/% | |
| Example 1 | 88.56 |
| Example 2 | 88.73 |
| Example 3 | 89.01 |
| Example 4 | 88.87 |
| Comparative example 1 | 27.71 |
| Comparative example 2 | 61.45 |
As can be seen from Table 1, the foot pad material prepared by the method has excellent degradation performance, and the degradation performance of the automobile foot pad material can be remarkably improved by introducing bagasse/wheat straw composite polyurethane.
Tensile property: according to ISO527 method, the drawing speed is 50 mm/min;
the test results are shown in table 2;
TABLE 2
| Tensile strength MPa | |
| Example 1 | 10.12 |
| Example 2 | 10.28 |
| Example 3 | 10.18 |
| Example 4 | 10.07 |
| Comparative example 3 | 8.25 |
As can be seen from Table 2, the automobile foot mat material prepared by the invention has excellent tensile strength, and the mechanical properties of the automobile foot mat material are improved by introducing a certain amount of glass fibers and the synergistic effect of other components.
Further experiments, based on the sample of example 1, the impact of different crushing and polyurethane resin mixing mass ratios on the tensile strength of the automobile mat material is compared;
TABLE 3
As can be seen from Table 3, the mechanical properties of the foot mat material prepared by the invention can be improved along with the reduction of the grinding proportion in the bagasse/wheat straw composite polyurethane, but the degradation properties can be greatly reduced along with the reduction of the powder proportion.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and the present invention is not limited to the illustrated embodiments, and all the modifications and equivalents of the embodiments may be made without departing from the spirit of the present invention.
Claims (9)
1. A degradable automobile foot pad material is characterized by being prepared from the following components in parts by weight: 88-95 parts of bagasse/wheat straw composite polyurethane, 3-6 parts of stearic acid, 10-15 parts of plasticizer, 5-8 parts of polyvinyl chloride resin, 1-2 parts of coupling agent, 7-10 parts of color master batch, 2.5-3 parts of glass fiber, 1-3 parts of chlorinated paraffin, 20-25 parts of calcium carbonate and 1-3 parts of maleic anhydride.
2. The degradable automobile foot mat material according to claim 1, wherein: the plasticizer is epoxidized soybean oil.
3. The degradable automobile foot mat material according to claim 1, wherein: the preparation method of the bagasse/wheat straw composite polyurethane comprises the following steps:
(1) collecting bagasse, firstly feeding the bagasse into a crusher for crushing treatment, then carrying out hydrolysis treatment on the bagasse for 1 hour by using a hydrolysis solution, and then filtering, cleaning and drying the bagasse to obtain the hydrolysis-treated bagasse;
(2) cleaning wheat straws, and then sending the wheat straws into a pulverizer for pulverization treatment to obtain pulverized wheat straws;
(3) uniformly mixing the hydrolysis-treated bagasse and crushed wheat straw to obtain a mixture;
(4) mixing the mixture and a sodium hydroxide solution together, adjusting the temperature to 80 ℃, keeping the temperature and stirring for 2 hours, then performing rotary evaporation drying, and performing secondary crushing to obtain powder;
(5) and (3) sequentially adding the crushed polyurethane resin into an extruder for melting and basic granulation to obtain the bagasse/wheat straw composite polyurethane.
4. The degradable automobile foot mat material according to claim 3, wherein: the preparation method of the soothing solution comprises the following steps:
sequentially adding sodium hydroxide, sodium citrate, vinyl trimethoxy silane, ethanol and clear water into a stirrer and uniformly stirring to obtain the sodium-modified potassium-zinc-aluminum phosphate;
the stirring speed is 250 r/min.
5. The degradable automobile foot mat material according to claim 4, wherein the degradable automobile foot mat material comprises the following components in percentage by weight: the mixing weight ratio of the sodium hydroxide, the sodium citrate, the vinyl trimethoxy silane, the ethanol and the clear water is 10:1:2:6: 100.
6. The degradable automobile foot mat material according to claim 3, wherein the degradable automobile foot mat material comprises the following components in percentage by weight: the mixing mass ratio of the bagasse to the hydrolysis solution is 1: 20.
7. The degradable automobile foot mat material according to claim 3, wherein: the mixing mass ratio of the hydrolysis-treated bagasse to the crushed wheat straw is 10: 3;
the mixing mass ratio of the mixture to the sodium hydroxide solution is 1: 20;
the mass fraction of the sodium hydroxide solution is 5 percent;
the mixing mass ratio of the crushed polyurethane resin to the polyurethane resin is 1: 3.
8. The degradable automobile foot mat material according to claim 1, wherein: the coupling agent is a titanate coupling agent.
9. The method for preparing the degradable automobile foot mat material according to any one of claims 1 or 8, wherein the method comprises the following steps: the method comprises the following steps:
(1) weighing bagasse/wheat straw composite polyurethane, stearic acid, a plasticizer, polyvinyl chloride resin, a coupling agent, color master batches, glass fiber, chlorinated paraffin, calcium carbonate and maleic anhydride in parts by weight;
(2) sequentially adding bagasse/wheat straw composite polyurethane, stearic acid, a plasticizer, polyvinyl chloride resin, a coupling agent, color master batches, glass fibers, chlorinated paraffin, calcium carbonate and maleic anhydride into a high-speed mixer to mix for 30min, wherein the mixing speed is 2000r/min, and obtaining uniform prepared materials;
(3) adding the obtained uniform prepared materials into a drying machine for drying treatment, wherein the drying temperature is 60 ℃, and the drying time is 4 hours, so as to obtain a dried material;
(4) and adding the obtained dry material into a double-screw extruder for melt extrusion granulation to obtain the composite material.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210691358.8A CN114957964B (en) | 2022-06-17 | 2022-06-17 | Degradable automobile foot mat material and preparation method thereof |
| PCT/CN2022/100775 WO2023240669A1 (en) | 2022-06-17 | 2022-06-23 | Degradable automobile floor mat material and preparation method therefor |
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| CN117820842A (en) * | 2024-01-04 | 2024-04-05 | 莆田市华阳新材料有限公司 | Environment-friendly sponge, preparation method thereof and application thereof in insoles |
| CN118006077B (en) * | 2024-03-12 | 2024-07-23 | 浙江一马新材料有限公司 | Special material for automobile with photochromic ABS and preparation method thereof |
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| CN114957964B (en) | 2023-03-31 |
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