CN114133662A - Basalt fiber reinforced polypropylene-based composite material - Google Patents
Basalt fiber reinforced polypropylene-based composite material Download PDFInfo
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- CN114133662A CN114133662A CN202111458601.3A CN202111458601A CN114133662A CN 114133662 A CN114133662 A CN 114133662A CN 202111458601 A CN202111458601 A CN 202111458601A CN 114133662 A CN114133662 A CN 114133662A
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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Abstract
The invention belongs to the technical field of polypropylene composite materials, and particularly relates to a basalt fiber reinforced polypropylene-based composite material, which comprises the following raw materials in parts by weight: 12-18 parts of basalt fiber, 50-60 parts of polypropylene, 10-15 parts of an ultraviolet-resistant absorbent, 1-3 parts of an antioxidant, 1-5 parts of a reinforcing agent and 2-4 parts of a binder. According to the invention, the ultraviolet-resistant absorbent and the antioxidant are added into the polypropylene, so that the ultraviolet resistance and the oxidation resistance of the polypropylene can be effectively improved, the problem that the polypropylene is not aged due to the influence of temperature, humidity and regional climate when the polypropylene is used outdoors can be ensured, meanwhile, the toughness and the strength of the polypropylene can be improved by adding the reinforcing agent into the polypropylene, and the bonding between the polypropylene and the basalt fiber can be more firm and better in dispersity due to poor bonding property of the polypropylene, so that the comprehensive performance of the prepared composite material is effectively improved.
Description
Technical Field
The invention relates to the technical field of polypropylene composite materials, in particular to a basalt fiber reinforced polypropylene-based composite material.
Background
Polypropylene has excellent comprehensive performance, is called three general-purpose polymers together with polyethylene and polyvinyl chloride, and is widely applied to the fields of automobile interior and exterior decorations, household appliance shells, building pipelines and the like. However, compared with engineering plastics and impact-resistant plastics, the ultimate tensile strength and impact toughness of polypropylene still need to be improved, and particularly in the fields of automobiles, unmanned aerial vehicles and the like, the defects of low tensile strength and brittleness of polypropylene greatly limit the application of the polypropylene. Therefore, the addition of a second or third component is generally required to achieve an improvement in the mechanical properties of the polypropylene.
Therefore, in order to improve the mechanical properties of polypropylene resin, basalt fibers are usually added and combined in polypropylene in the conventional technology to make up for the deficiency of the mechanical properties of polypropylene itself, and although the mechanical properties of polypropylene are improved by adding basalt fibers, polypropylene materials are still easily affected by temperature, humidity and regional climate when used outdoors, so that the mechanical properties of the combined composite material are seriously and obviously reduced under the weather-resistant condition. For this reason, there is also a need for improvements in basalt fiber-reinforced polypropylene-based composites.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a basalt fiber-reinforced polypropylene-based composite material, which solves the problem that the mechanical property of the composite material is seriously and obviously reduced under the weather-proof condition of the combined composite material because the existing polypropylene material is easily influenced by temperature, humidity and regional climate when used outdoors.
(II) technical scheme
The invention specifically adopts the following technical scheme for realizing the purpose:
a basalt fiber reinforced polypropylene-based composite material comprises the following raw materials in parts by weight: 12-18 parts of basalt fiber, 50-60 parts of polypropylene, 10-15 parts of an ultraviolet-resistant absorbent, 1-3 parts of an antioxidant, 1-5 parts of a reinforcing agent and 2-4 parts of a binder;
the ultraviolet-resistant absorbent comprises the following components in parts by weight: 16-18 parts of benzotriazole ultraviolet absorbent, 6-8 parts of nonylphenol polyoxyethylene ether and 70-80 parts of water;
the antioxidant comprises the following components in parts by weight: 2-10 parts of an emulsifier, 6-12 parts of a cationic surfactant, 25-40 parts of fatty alcohol, 6-10 parts of benzylhydroxylamine and 15-45 parts of water;
the reinforcing agent comprises the following components in parts by weight: 12 parts of heavy calcium carbonate and 0.5-1 part of nano silicon dioxide.
Further, the adhesive comprises any one of hydroxypropyl methyl cellulose, hydroxyethyl ethyl cellulose, methyl ethyl cellulose, corn cavity, guar gum, triethyl citrate, gelatin and dextrin.
Further, the emulsifier comprises any one of polyacrylamide, fatty amine salt and polyglycerol ester, and the cationic surfactant has a cationic degree of 24-28% and a density of 0.98-1.05 g/ml.
Further, the preparation method of the ultraviolet-resistant absorbent specifically comprises the following steps: the ultraviolet absorbent is prepared by adding benzotriazole ultraviolet absorbent, nonylphenol polyoxyethylene ether and water according to the weight ratio of (16-18): (6-8): 70-80) into a high-speed mixer, and mixing at the rotating speed of 50-100 r/min for 5-10 min and stirring uniformly.
Further, the preparation method of the antioxidant specifically comprises the following steps: firstly, an emulsifier and a surfactant are mixed according to the weight ratio of (2-10): (6-12) adding the mixture into a reaction kettle, stirring for 15-20 min for the first time, and then mixing the benzyl hydroxylamine and the fatty alcohol according to the weight ratio of (6-10): (25-40), heating and stirring for reaction for 2-4 h, adding part of water when the materials are transparent liquid, cooling to 25-35 ℃, adding the rest of water, and stirring to obtain the finished product.
Further, the stirring speed of the reaction kettle is 50-100 r/min, and the heating temperature is 40-45 ℃.
Further, the preparation method of the reinforcing agent specifically comprises the following steps: mixing heavy calcium carbonate and nano silicon dioxide according to the weight ratio of 12: 0.5-1, adding the mixture into a high-speed mixer, and uniformly mixing for 10-20 min at the rotating speed of 60-80 r/min.
(III) advantageous effects
Compared with the prior art, the basalt fiber reinforced polypropylene-based composite material provided by the invention has the following beneficial effects:
according to the invention, the ultraviolet-resistant absorbent and the antioxidant are added into the polypropylene, so that the ultraviolet resistance and the oxidation resistance of the polypropylene can be effectively improved, the problem that the polypropylene is not aged due to the influence of temperature, humidity and regional climate when the polypropylene is used outdoors can be ensured, meanwhile, the toughness and the strength of the polypropylene can be improved by adding the reinforcing agent into the polypropylene, and the bonding property of the polypropylene is poor, so that the bonding between the polypropylene and the basalt fiber can be more firm and the dispersibility is better, the comprehensive performance of the prepared composite material is effectively improved, and the composite material is ensured to have better impact strength, tensile strength, bending strength and elongation at break when used in a weather-resistant condition.
Drawings
FIG. 1 is a graph showing the performance test of the composite material according to the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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 of the 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
As shown in fig. 1, an embodiment of the present invention provides a basalt fiber-reinforced polypropylene-based composite material, which comprises the following raw materials in parts by weight: 12 parts of basalt fiber, 500 parts of polypropylene, 10 parts of ultraviolet-resistant absorbent, 1 part of antioxidant, 1 part of reinforcing agent and 2 parts of binder;
the anti-ultraviolet absorbent comprises the following components in parts by weight: 16 parts of benzotriazole ultraviolet absorbent, 6 parts of nonylphenol polyoxyethylene ether and 70 parts of water;
the antioxidant comprises the following components in parts by weight: 2 parts of emulsifier, 6 parts of cationic surfactant, 25 parts of fatty alcohol, 6 parts of benzyl hydroxylamine and 15 parts of water;
the reinforcing agent comprises the following components in parts by weight: 12 parts of heavy calcium carbonate and 0.5 part of nano silicon dioxide.
In some embodiments, the binder is hydroxypropyl methylcellulose.
In some embodiments, the emulsifier is polyacrylamide and the cationic surfactant has a cationicity of 24% and a density of 0.98 g/ml.
In some embodiments, the method for preparing the anti-uv absorber is specifically: the benzotriazole ultraviolet absorbent, the nonylphenol polyoxyethylene ether and the water are added into a high-speed mixer according to the weight ratio of 16:6:70, and are mixed for 5min at the rotating speed of 50r/min and are uniformly stirred to prepare the ultraviolet absorbent.
In some embodiments, the antioxidant is prepared by a method comprising: firstly, mixing an emulsifier and a surfactant according to a weight ratio of 2: 6, adding the mixture into a reaction kettle, stirring for the first time for 15min, and then adding benzylhydroxylamine and fatty alcohol according to the weight ratio of 6: 25, heating and stirring for reaction for 2 hours, adding part of water when the materials are transparent liquid, cooling to 25 ℃, adding the rest of water, and stirring to obtain the finished product.
In some embodiments, the reaction kettle has a stirring speed of 50r/min and a heating temperature of 40 ℃.
In some embodiments, the enhancer is prepared by a method comprising: mixing heavy calcium carbonate and nano silicon dioxide according to the weight ratio of 12: 0.5, adding the mixture into a high-speed mixer, mixing the mixture for 10min at the rotating speed of 60r/min, and uniformly stirring the mixture to prepare the water-based paint.
Example 2
As shown in fig. 1, an embodiment of the present invention provides a basalt fiber-reinforced polypropylene-based composite material, which comprises the following raw materials in parts by weight: 12-18 parts of basalt fiber, 52 parts of polypropylene, 12 parts of an ultraviolet-resistant absorbent, 1.5 parts of an antioxidant, 2 parts of a reinforcing agent and 2.5 parts of a binder;
the anti-ultraviolet absorbent comprises the following components in parts by weight: 16.5 parts of benzotriazole ultraviolet absorbent, 6.5 parts of nonylphenol polyoxyethylene ether and 72 parts of water;
the antioxidant comprises the following components in parts by weight: 4 parts of emulsifier, 8 parts of cationic surfactant, 30 parts of fatty alcohol, 7 parts of benzyl hydroxyl and 20 parts of water;
the reinforcing agent comprises the following components in parts by weight: 12 parts of heavy calcium carbonate and 0.6 part of nano silicon dioxide.
In some embodiments, the binder is hydroxyethyl ethylcellulose.
In some embodiments, the emulsifier is a polyglycerol ester and the cationic surfactant has a cationicity of 26% and a density of 1 g/ml.
In some embodiments, the method for preparing the anti-uv absorber is specifically: the benzotriazole ultraviolet absorbent, the nonylphenol polyoxyethylene ether and the water are added into a high-speed mixer according to the weight ratio of 16.5:6.5:72, and are mixed for 6min at the rotating speed of 60r/min to be uniformly stirred to prepare the ultraviolet absorbent.
In some embodiments, the antioxidant is prepared by a method comprising: firstly, mixing an emulsifier and a surfactant according to a weight ratio of 4: 8, adding the mixture into a reaction kettle, stirring for the first time for 16min, and adding benzylhydroxylamine and fatty alcohol according to a weight ratio of 7: 30, then heating and stirring for reaction for 2.5h, adding part of water when the materials are transparent liquid, cooling to 28 ℃, then adding the rest amount of water, and stirring to obtain the finished product.
In some embodiments, the reaction kettle has a stirring speed of 60r/min and a heating temperature of 40 ℃.
In some embodiments, the enhancer is prepared by a method comprising: mixing heavy calcium carbonate and nano silicon dioxide according to the weight ratio of 12: 0.6, adding the mixture into a high-speed mixer, mixing the mixture for 15min at the rotating speed of 70r/min, and uniformly stirring the mixture to prepare the water-based paint.
Example 3
As shown in fig. 1, an embodiment of the present invention provides a basalt fiber-reinforced polypropylene-based composite material, which comprises the following raw materials in parts by weight: 12-18 parts of basalt fiber, 54 parts of polypropylene, 14 parts of an ultraviolet-resistant absorbent, 2 parts of an antioxidant, 4 parts of a reinforcing agent and 3 parts of a binder;
the anti-ultraviolet absorbent comprises the following components in parts by weight: 17 parts of benzotriazole ultraviolet absorbent, 7 parts of nonylphenol polyoxyethylene ether and 75 parts of water;
the antioxidant comprises the following components in parts by weight: 8 parts of emulsifier, 10 parts of cationic surfactant, 35 parts of fatty alcohol, 8 parts of benzyl hydroxylamine and 35 parts of water;
the reinforcing agent comprises the following components in parts by weight: 12 parts of heavy calcium carbonate and 0.8 part of nano silicon dioxide.
In some embodiments, the binder is hydroxyethyl methylcellulose.
In some embodiments, the emulsifier is a fatty amine salt and the cationic surfactant has a cationicity of 26% and a density of 1.03 g/ml.
In some embodiments, the method for preparing the anti-uv absorber is specifically: the benzotriazole ultraviolet absorbent, the nonylphenol polyoxyethylene ether and the water are added into a high-speed mixer according to the weight ratio of 17:7:75, and are mixed for 8min at the rotating speed of 80r/min and are uniformly stirred to prepare the ultraviolet absorbent.
In some embodiments, the antioxidant is prepared by a method comprising: firstly, mixing an emulsifier and a surfactant according to a weight ratio of 8: 10, adding the mixture into a reaction kettle, stirring for the first time for 18min, and adding benzylhydroxylamine and fatty alcohol according to a weight ratio of 8: 35, heating and stirring for reaction for 3 hours, adding part of water when the materials are transparent liquid, cooling to 30 ℃, adding the rest of water, and stirring to obtain the finished product.
In some embodiments, the reaction kettle has a stirring speed of 80r/min and a heating temperature of 45 ℃.
In some embodiments, the enhancer is prepared by a method comprising: mixing heavy calcium carbonate and nano silicon dioxide according to the weight ratio of 12: 0.8, adding the mixture into a high-speed mixer, mixing the mixture for 20min at the rotating speed of 70r/min, and uniformly stirring the mixture to prepare the water-based paint.
Example 4
As shown in fig. 1, an embodiment of the present invention provides a basalt fiber-reinforced polypropylene-based composite material, which comprises the following raw materials in parts by weight: 12-18 parts of basalt fiber, 60 parts of polypropylene, 15 parts of an ultraviolet-resistant absorbent, 3 parts of an antioxidant, 5 parts of a reinforcing agent and 4 parts of a binder;
the anti-ultraviolet absorbent comprises the following components in parts by weight: 18 parts of benzotriazole ultraviolet absorbent, 8 parts of nonylphenol polyoxyethylene ether and 80 parts of water;
the antioxidant comprises the following components in parts by weight: 10 parts of emulsifier, 12 parts of cationic surfactant, 40 parts of fatty alcohol, 10 parts of benzyl hydroxylamine and 45 parts of water;
the reinforcing agent comprises the following components in parts by weight: 12 parts of heavy calcium carbonate and 1 part of nano silicon dioxide.
In some embodiments, the binder is triethyl citrate.
In some embodiments, the emulsifier is a fatty amine salt and the cationic surfactant has a cationicity of 28% and a density of 1.05 g/ml.
In some embodiments, the method for preparing the anti-uv absorber is specifically: the benzotriazole ultraviolet absorbent, the nonylphenol polyoxyethylene ether and the water are added into a high-speed mixer according to the weight ratio of 18:8:80, and are mixed for 10min at the rotating speed of 100r/min and are uniformly stirred to prepare the ultraviolet absorbent.
In some embodiments, the antioxidant is prepared by a method comprising: firstly, mixing an emulsifier and a surfactant according to a weight ratio of 10: 12, adding the mixture into a reaction kettle, stirring for 15-20 min for the first time, and mixing the benzyl hydroxylamine and the fatty alcohol according to the weight ratio of 10: 40, heating and stirring for reaction for 4 hours, adding part of water when the materials are transparent liquid, cooling to 35 ℃, adding the rest amount of water, and stirring to obtain the finished product.
In some embodiments, the reaction kettle has a stirring speed of 100r/min and a heating temperature of 45 ℃.
In some embodiments, the enhancer is prepared by a method comprising: mixing heavy calcium carbonate and nano silicon dioxide according to the weight ratio of 12: 1, adding the mixture into a high-speed mixer, mixing the mixture for 20min at the rotating speed of 80r/min, and uniformly stirring the mixture to prepare the water-based paint.
Comparative example
As shown in fig. 1, an embodiment of the present invention provides a basalt fiber-reinforced polypropylene-based composite material, which comprises the following raw materials in parts by weight: 12 parts of basalt fiber, 500 parts of polypropylene, 1 part of reinforcing agent and 2 parts of binder;
the reinforcing agent comprises the following components in parts by weight: 12 parts of heavy calcium carbonate and 0.5 part of nano silicon dioxide.
In some embodiments, the binder is hydroxypropyl methylcellulose.
In some embodiments, the enhancer is prepared by a method comprising: mixing heavy calcium carbonate and nano silicon dioxide according to the weight ratio of 12: 0.5, adding the mixture into a high-speed mixer, mixing the mixture for 10min at the rotating speed of 60r/min, and uniformly stirring the mixture to prepare the water-based paint.
In order to ensure that the composite material can maintain good mechanical properties when used in a weather-resistant condition, the composite material is subjected to an aging test, wherein 1 to 4 are compared with a basalt fiber-reinforced polypropylene-based composite material prepared in a comparative example, as can be seen from the data tested in fig. 1, the tensile strength, the flexural strength, the notched impact strength and the elongation at break of the composite material prepared in the examples 1 to 4 are obviously superior to the mechanical properties of the composite material in the comparative example, and the notched impact strength and the elongation at break of the comparative example are greatly reduced, which may cause that the mechanical properties of the composite material are seriously affected when the composite material is used in a weather-resistant condition because a weather-resistant system is not added, although the notched impact strength and the elongation at break of the composite material in the examples 1 to 4 are also reduced, but the reduction fluctuation is not large, wherein the elongation at break reaches more than 80 percent, the impact strength reaches more than 90 percent, and the material can still keep good mechanical property, mainly because the ultraviolet-resistant absorbent and the antioxidant are added into the polypropylene, the ultraviolet-resistant property and the oxidation property of the polypropylene can be improved, the problem that the polypropylene is aged when the polypropylene is used outdoors under the influence of temperature, humidity and regional climate can be ensured, meanwhile, the toughness and the strength of the polypropylene can be improved by adding the reinforcing agent into the polypropylene, and because the bonding property of the polypropylene is poor, the bonding between the polypropylene and the basalt fiber can be ensured to be firmer and better in dispersibility by adding the binder, so that the comprehensive property of the prepared composite material is effectively improved, and the composite material is ensured to have better impact strength, better impact strength and better dispersion when the composite material is used under the weather-resistant condition, Tensile strength, flexural strength, and elongation at break.
The specific preparation method of the composite material prepared in the embodiments 1-4 of the invention comprises the following steps: firstly, sequentially adding polypropylene, an anti-ultraviolet absorbent, an antioxidant and a reinforcing agent into a high-speed mixer according to the weight ratio, mixing for 30min at the temperature of 80 ℃ and the rotating speed of 1200r/min, then adding the basalt fiber and the binder into a double-screw extruder according to the weight ratio and the raw materials obtained by mixing in the step A for melt blending, and finally, carrying out blending extrusion and then cutting into particles to obtain the required product.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A polypropylene-based composite material reinforced based on basalt fibers is characterized in that: the composite material comprises the following raw materials in parts by weight: 12-18 parts of basalt fiber, 50-60 parts of polypropylene, 10-15 parts of an ultraviolet-resistant absorbent, 1-3 parts of an antioxidant, 1-5 parts of a reinforcing agent and 2-4 parts of a binder;
the ultraviolet-resistant absorbent comprises the following components in parts by weight: 16-18 parts of benzotriazole ultraviolet absorbent, 6-8 parts of nonylphenol polyoxyethylene ether and 70-80 parts of water;
the antioxidant comprises the following components in parts by weight: 2-10 parts of an emulsifier, 6-12 parts of a cationic surfactant, 25-40 parts of fatty alcohol, 6-10 parts of benzylhydroxylamine and 15-45 parts of water;
the reinforcing agent comprises the following components in parts by weight: 12 parts of heavy calcium carbonate and 0.5-1 part of nano silicon dioxide.
2. The basalt fiber-reinforced polypropylene-based composite material as claimed in claim 1, wherein: the adhesive comprises any one of hydroxypropyl methyl cellulose, hydroxyethyl ethyl cellulose, methyl ethyl cellulose, corn cavity, guar gum, triethyl citrate, gelatin and dextrin.
3. The basalt fiber-reinforced polypropylene-based composite material as claimed in claim 1, wherein: the emulsifier comprises any one of polyacrylamide, fatty amine salt and polyglycerol ester, and the cationic surfactant has a cationic degree of 24-28% and a density of 0.98-1.05 g/ml.
4. The basalt fiber-reinforced polypropylene-based composite material as claimed in claim 1, wherein: the preparation method of the ultraviolet-resistant absorbent specifically comprises the following steps: the ultraviolet absorbent is prepared by adding benzotriazole ultraviolet absorbent, nonylphenol polyoxyethylene ether and water according to the weight ratio of (16-18): (6-8): 70-80) into a high-speed mixer, and mixing at the rotating speed of 50-100 r/min for 5-10 min and stirring uniformly.
5. The basalt fiber-reinforced polypropylene-based composite material as claimed in claim 1, wherein: the preparation method of the antioxidant comprises the following steps: firstly, an emulsifier and a surfactant are mixed according to the weight ratio of (2-10): (6-12) adding the mixture into a reaction kettle, stirring for 15-20 min for the first time, and then mixing the benzyl hydroxylamine and the fatty alcohol according to the weight ratio of (6-10): (25-40), heating and stirring for reaction for 2-4 h, adding part of water when the materials are transparent liquid, cooling to 25-35 ℃, adding the rest of water, and stirring to obtain the finished product.
6. The basalt fiber-reinforced polypropylene-based composite material as claimed in claim 5, wherein: the stirring speed of the reaction kettle is 50-100 r/min, and the heating temperature is 40-45 ℃.
7. The basalt fiber-reinforced polypropylene-based composite material as claimed in claim 1, wherein: the preparation method of the reinforcing agent comprises the following steps: mixing heavy calcium carbonate and nano silicon dioxide according to the weight ratio of 12: 0.5-1, adding the mixture into a high-speed mixer, and uniformly mixing for 10-20 min at the rotating speed of 60-80 r/min.
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| CN104562660A (en) * | 2013-10-11 | 2015-04-29 | 中国石油化工股份有限公司 | Polyester fiber based on benzotriazole type ultraviolet ray absorber and preparing method thereof |
| CN107955314A (en) * | 2017-11-27 | 2018-04-24 | 武汉金牛经济发展有限公司 | A kind of chopped basalt fibre flexibilized polypropylene material and preparation method |
| CN108085986A (en) * | 2018-01-29 | 2018-05-29 | 广州市番禺区协运来化工用品有限公司 | A kind of fiber antioxidant and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104562660A (en) * | 2013-10-11 | 2015-04-29 | 中国石油化工股份有限公司 | Polyester fiber based on benzotriazole type ultraviolet ray absorber and preparing method thereof |
| CN107955314A (en) * | 2017-11-27 | 2018-04-24 | 武汉金牛经济发展有限公司 | A kind of chopped basalt fibre flexibilized polypropylene material and preparation method |
| CN108085986A (en) * | 2018-01-29 | 2018-05-29 | 广州市番禺区协运来化工用品有限公司 | A kind of fiber antioxidant and preparation method thereof |
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