阅读说明：本技术 一种高耐磨阻燃改性聚丙烯电缆保护管及其制备方法 (High-wear-resistance flame-retardant modified polypropylene cable protection pipe and preparation method thereof ) 是由 郑依明 于 2019-11-14 设计创作，主要内容包括：本发明公开一种高耐磨阻燃改性聚丙烯电缆保护管及其制备方法,本发明采用自制纳米球形Al<Sub>2</Sub>O<Sub>3</Sub>接枝棕榈纤维作为耐磨剂,利用棕榈纤维高强度,高韧性特点,在其表面接枝纳米球形Al<Sub>2</Sub>O<Sub>3</Sub>,形成具有“滚珠”结构的耐磨剂,同时复配超高分子量聚乙烯粉末,有效提高材料的耐磨性能。本发明还采用笼型聚倍半硅氧烷接枝二乙烯三胺五甲叉膦酸铵作为阻燃剂,结合二乙烯三胺五甲叉膦酸铵在燃烧易膨胀剂产生的氮气阻隔氧气,协同笼型聚倍半硅氧烷燃烧时能够在聚合物的表面形成一层致密的隔热、隔氧陶瓷型炭层,保护聚合物基体,发挥阻燃作用,从而有效提高材料耐磨及阻燃性能。(The invention discloses a high-wear-resistance flame-retardant modified polypropylene cable protection tube and a preparation method thereof 2 O 3 The grafted palm fiber is used as wear-resisting agent, and utilizes the palm fiber with high strength and high toughnessThe surface of the material is grafted with nano spherical Al 2 O 3 The wear-resisting agent with a ball structure is formed, and the ultra-high molecular weight polyethylene powder is compounded, so that the wear resistance of the material is effectively improved. According to the invention, cage type polysilsesquioxane grafted ammonium diethylenetriamine pentamethylene phosphonate is used as a flame retardant, and a layer of compact heat-insulating and oxygen-insulating ceramic carbon layer can be formed on the surface of a polymer when the cage type polysilsesquioxane is combusted by combining nitrogen generated by the combustion of the ammonium diethylenetriamine pentamethylene phosphonate in an easily-expandable agent to block oxygen, so that a polymer matrix is protected, and a flame retardant effect is exerted, thereby effectively improving the wear resistance and flame retardant property of the material.)

1. The utility model provides a modified polypropylene cable protection pipe of high wear-resisting fire-retardant which characterized in that: the composition comprises the following components in parts by weight:

PP resin: 80 to 100 portions of

Wear-resisting agent: 15-25 parts of

Flame retardant: 10-20 parts of

Reinforcing agent: 20-30 parts of

A toughening agent: 5-10 parts of

A compatilizer: 4 to 8 portions of

Lubricant: 1-3 parts of

Antioxidant: 0.3-0.5 part.

2. The cable protection tube made of modified polypropylene with high abrasion resistance and flame retardancy as claimed in claim 1, wherein: the wear-resisting agent is nano spherical Al₂O₃Grafting palm fibers;

the nano spherical Al₂O₃The grafted palm fiber consists of the following components in parts by weight:

nano spherical Al₂O₃： 20 g

Palm fiber: 30g of

Solvent: 200 ml of

Coupling agent: 15 g of

Active agent(s): 3 g

The nano spherical Al₂O₃The average particle size is 20nm, and the product purity is 99.9%;

the palm fiber is treated by 6.0wt% of NaOH, the average particle size is 0.05mm, and the water content is less than 5%;

the coupling agent is a mixture of vinyl tri (beta-methoxyethoxy) silane and vinyl triethoxysilane at a mass ratio of 1: 2;

the active agent is a nonionic surfactant, and is further a mixture of fatty acid methyl ester polyoxyethylene ether and coconut oil fatty acid diethanolamide in a mass ratio of 2: 1;

the solvent is a mixture of acetone and absolute ethyl alcohol according to a mass ratio of 2: 3.

3. The nano-spherical Al according to claim 2₂O₃A grafted palm fibre characterised by: the nano spherical Al₂O₃The preparation method of the grafted palm fiber comprises the following steps:

(1) weighing 20g of nano spherical Al₂O₃After full drying, adding the mixture into 100ml of solvent, stirring the mixture for 2 hours at normal temperature, and marking the mixture as solution A;

(2) weighing 10g of coupling agent and 2g of active agent, adding into 50ml of solvent, and ultrasonically dispersing for 20min to obtain solution B;

(3) slowly adding the solution B into the solution A under the constant temperature of 65 ℃, fully stirring and reacting for 2h, then carrying out vacuum filtration while washing with ethanol and distilled water for 3 times, putting into a drying oven, and drying for 4h at the temperature of 70 ℃ to obtain the surface-treated nano spherical Al₂O₃；

(4) Weighing 10g of the surface-treated nano spherical Al prepared in the step (3)₂O₃Adding into 50ml solvent, adding 5g coupling agent and 1g activating agent, stirring for 0.5 hr, ultrasonic dispersing at 80 kHz for 1 hr to obtain uniform dispersion, adding 30g palm fiber into the uniform dispersion, stirring for 0.5 hr, filtering, drying in oven at 85 deg.C for 3 hr to obtain nanometer spherical Al₂O₃And (4) grafting the palm fibers.

4. The cable protection tube made of modified polypropylene with high abrasion resistance and flame retardancy as claimed in claim 1, wherein: the flame retardant is cage type polysilsesquioxane grafted ammonium diethylenetriamine pentamethylene phosphonate.

5. The cage-type polysilsesquioxane grafted ammonium diethylenetriamine pentamethylenephosphonate flame retardant of claim 4, wherein: the preparation method of the cage-type polysilsesquioxane grafted ammonium diethylenetriamine pentamethylene phosphonate flame retardant comprises the following steps of;

accurately weighing 50g of diethylenetriamine pentamethylene phosphoric acid, adding the 50g of diethylenetriamine pentamethylene phosphoric acid into a three-neck flask filled with 25g of urea, fully stirring and refluxing at the temperature of 110 ℃ for reaction for 4h, then cooling to normal temperature, adding distilled water until the distilled water is completely dissolved, adding 10g of cage polysilsesquioxane, fully stirring, performing ultrasonic treatment for 20min, then performing constant temperature reaction at 80 ℃ for 4h, and drying at 100 ℃ to obtain the cage polysilsesquioxane grafted diethylenetriamine pentamethylene phosphonic acid ammonium flame retardant;

the cage-type polysilsesquioxane is octaepoxy cage-type silsesquioxane.

6. The cable protection tube made of modified polypropylene with high abrasion resistance and flame retardancy as claimed in claim 1, wherein: the reinforcing agent is ultra-high molecular weight polyethylene powder, and the ultra-high molecular weight polyethylene powder has a molecular weight of 300-600 ten thousand and a particle size of 20-200 meshes.

7. The cable protection tube made of modified polypropylene with high abrasion resistance and flame retardancy as claimed in claim 1, wherein: the toughening agent is a mixture of EVA and EAA according to a mass ratio of 4: 3.

8. The cable protection tube made of modified polypropylene with high abrasion resistance and flame retardancy as claimed in claim 1, wherein: the compatilizer is PP grafted maleic anhydride, and the grafting rate is more than or equal to 2.5 percent.

9. The cable protection tube made of modified polypropylene with high abrasion resistance and flame retardancy as claimed in claim 1, wherein: the lubricant is PP wax, and the antioxidant is a mixture of an antioxidant 1010 and a secondary antioxidant 168 in a mass ratio of 3: 2.

10. The preparation method of the high wear-resistant flame-retardant modified polypropylene cable protection tube of any one of claims 1 to 9, which comprises the following steps: the method is characterized in that: the method comprises the following steps:

the method comprises the following steps: weighing PP resin, a wear-resisting agent, a flame retardant, a reinforcing agent, a toughening agent, a compatilizer, a lubricant and an antioxidant according to a ratio for later use;

step two: sequentially adding PP resin, a wear-resistant agent, a flame retardant, a reinforcing agent, a toughening agent, a compatilizer, a lubricant and an antioxidant into a high-speed mixer, and stirring at the normal temperature of 150-;

controlling the working parameters of the double-screw extruder to be 100 ~ 130 ℃ in the first zone, 150 ~ 190 ℃ in the second zone, 190 ~ 220 ℃ in the third zone, 180 ~ 210 ℃ in the fourth zone, 160 ~ 200 ℃ in the fifth zone, 130 ~ 160 ℃ in the die head, 100 ~ 150r/min in the feeding speed, 250 ~ 300r/min in the screw rotating speed, extruding and granulating to obtain the special material for the high-wear-resistant flame-retardant modified polypropylene cable protection tube;

and step four, adding the special material for the high-wear-resistance flame-retardant modified polypropylene cable protection tube obtained in the step three into a tube extrusion hopper, and controlling the technological parameters of a tube extrusion production line to be 150 ~ 160 ℃ in the cylinder 1 region, 170 ~ 190 ℃ in the cylinder 2 region, 200 ~ 220 ℃ in the cylinder 3 region, 180 ~ 200 ℃ in the cylinder 4 region, 150 ~ 180 ℃ in the cylinder 5 region, 200 ~ 220 ℃ in the head 1 region, 210 ~ 230 ℃ in the cylinder 2 region, 150 ~ 170 ℃ in the cylinder 3 region, and extrusion molding speed of 0.5m/min to obtain the high-wear-resistance flame-retardant modified polypropylene cable protection tube.

Technical Field

The invention relates to a high polymer material, in particular to a high-wear-resistance flame-retardant modified polypropylene cable protection pipe.

Background

With the continuous development of society and urbanization, underground pipelines become an important part in municipal construction, and the cable sheath tube is used as an important pipeline for protecting cables and communication lines in the underground pipelines, and plays an important role in preventing short-circuit accidents caused by broken lines of power lines, isolating magnetic field interference of the power lines, preventing the cables from being corroded and prolonging the service life of the cables.

At present, the cable protection pipe is mainly made of polypropylene materials, the pipeline has the advantages of high strength, good toughness, high ring stiffness, difficulty in breaking and aging and the like, but the wear resistance and the flame retardance are poor, particularly, a non-excavation laying method is mostly adopted for underground pipelines at present, and the pipelines are inevitably rubbed with underground sand stones or soil due to the traction of a machine in the construction process, so that irreversible abrasion is caused to the pipelines, the service life of the pipelines is influenced, and meanwhile, the problems that the cables in the protection pipe are short-circuited to cause combustion and the like are solved.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a high-wear-resistance flame-retardant modified polypropylene cable protection pipe and a preparation method thereof.

In order to achieve the purpose, the invention provides the following technical scheme:

a high-wear-resistance flame-retardant modified polypropylene cable protection pipe comprises the following components in parts by weight:

PP resin: 80 to 100 portions of

Wear-resisting agent: 15-25 parts of

Flame retardant: 10-20 parts of

Reinforcing agent: 20-30 parts of

A toughening agent: 5-10 parts of

A compatilizer: 4 to 8 portions of

Lubricant: 1-3 parts of

Antioxidant: 0.3-0.5 part.

The wear-resisting agent is nano spherical Al₂O₃Grafting palm fibers;

the nano spherical Al₂O₃The grafted palm fiber consists of the following components in parts by weight:

nano spherical Al₂O₃： 20 g

Palm fiber: 30g of

Solvent: 200 ml of

Coupling agent: 15 g of

Active agent(s): 3 g

The nano spherical Al₂O₃The average particle size is 20nm, and the product purity is 99.9%;

the palm fiber is treated by 6.0 percent NaOH, the average grain diameter is 0.05mm, and the water content is less than 5 percent;

the coupling agent is a mixture of vinyl tri (beta-methoxyethoxy) silane and vinyl triethoxysilane at a mass ratio of 1: 2;

the active agent is a nonionic surfactant, and is further a mixture of fatty acid methyl ester polyoxyethylene ether and coconut oil fatty acid diethanolamide in a mass ratio of 2: 1;

the solvent is a mixture of acetone and ethanol according to a mass ratio of 2: 3.

The nano spherical Al₂O₃The preparation method of the grafted palm fiber comprises the following steps:

(1) weighing 20g of nano spherical Al₂O₃After full drying, adding the mixture into 100ml of solvent, stirring the mixture for 2 hours at normal temperature, and marking the mixture as solution A;

(2) weighing 10g of coupling agent and 2g of active agent, adding into 50ml of solvent, and ultrasonically dispersing for 20min to obtain solution B;

(3) slowly adding the solution B into the solution A at the constant temperature of 65 ℃, fully stirring and reacting for 2 hoursWashing with ethanol and distilled water for 3 times while vacuum filtering, drying in oven at 70 deg.C for 4 hr to obtain surface treated nanometer spherical Al₂O₃；

(4) Weighing 10g of the surface-treated nano spherical Al prepared in the step (3)₂O₃Adding into 50ml solvent, adding 5g coupling agent and 1g activating agent, stirring for 0.5 hr, ultrasonic dispersing at 80 kHz for 1 hr to obtain uniform dispersion, adding 30g palm fiber into the uniform dispersion, stirring for 0.5 hr, filtering, drying in oven at 85 deg.C for 3 hr to obtain nanometer spherical Al₂O₃And (4) grafting the palm fibers.

The flame retardant is cage type polysilsesquioxane grafted ammonium diethylenetriamine pentamethylene phosphonate;

the preparation method of the cage-type polysilsesquioxane grafted ammonium diethylenetriamine pentamethylene phosphonate flame retardant comprises the following steps of;

accurately weighing 50g of diethylenetriamine pentamethylene phosphoric acid, adding the 50g of diethylenetriamine pentamethylene phosphoric acid into a three-neck flask containing 25g of urea, fully stirring and refluxing at the temperature of 110 ℃ for reaction for 4h, then cooling to normal temperature, adding 10g of cage polysilsesquioxane, fully stirring, performing ultrasonic treatment for 20min, then performing constant temperature reaction at 80 ℃ for 4h, and drying at 100 ℃ to obtain the cage polysilsesquioxane grafted diethylenetriamine pentamethylene phosphonic acid ammonium flame retardant.

The cage type polysilsesquioxane is octaepoxy group cage type silsesquioxane which is selected from American hybrid plastics company;

the reinforcing agent is ultra-high molecular weight polyethylene powder, and the molecular weight of the ultra-high molecular weight polyethylene powder is 300-600 ten thousand, and the particle size is 20-200 meshes;

the toughening agent is a mixture of EVA and EAA according to a mass ratio of 4: 3;

the compatilizer is PP grafted maleic anhydride, and the grafting rate is more than or equal to 2.5 percent.

The lubricant is PP wax, and the antioxidant is a mixture of an antioxidant 1010 and a secondary antioxidant 168 in a mass ratio of 3: 2.

The preparation method of the high-wear-resistance flame-retardant modified polypropylene cable protection pipe comprises the following steps: the method is characterized in that: the method comprises the following steps:

the method comprises the following steps: weighing PP resin, a wear-resisting agent, a flame retardant, a reinforcing agent, a toughening agent, a compatilizer, a lubricant and an antioxidant according to a ratio for later use;

step two: sequentially adding PP resin, a wear-resistant agent, a flame retardant, a reinforcing agent, a toughening agent, a compatilizer, a lubricant and an antioxidant into a high-speed mixer, and stirring at the normal temperature of 150-;

controlling the working parameters of the double-screw extruder to be 100 ~ 130 ℃ in the first zone, 150 ~ 190 ℃ in the second zone, 190 ~ 220 ℃ in the third zone, 180 ~ 210 ℃ in the fourth zone, 160 ~ 200 ℃ in the fifth zone, 130 ~ 160 ℃ in the die head, 100 ~ 150r/min in feeding speed, 250 ~ 300r/min in screw rotating speed, and extruding and granulating;

and step four, adding the special material for the high-wear-resistance flame-retardant modified polypropylene cable protection tube obtained in the step three into a tube extrusion hopper, and controlling the technological parameters of the tube extrusion production line to be 150 ~ 160 ℃ in the cylinder 1 region, 170 ~ 190 ℃ in the cylinder 2 region, 200 ~ 220 ℃ in the cylinder 3 region, 180 ~ 200 ℃ in the cylinder 4 region, 150 ~ 180 ℃ in the cylinder 5 region, 200 ~ 220 ℃ in the nose 1 region, 210 ~ 230 ℃ in the cylinder 2 region, 150 ~ 170 ℃ in the cylinder 3 region, and extrusion molding speed of 0.5m/min to obtain the high-wear-resistance flame-retardant modified polypropylene cable protection tube.

The invention has the beneficial effects that as the key point of the invention, the self-made nano spherical Al is adopted in the process of preparing the high-wear-resistance flame-retardant modified polypropylene cable protection pipe₂O₃The grafted palm fiber is used as a wear-resisting agent, and the characteristics of high strength and high toughness of the palm fiber are utilized to graft nano spherical Al on the surface of the palm fiber₂O₃The wear-resisting agent with a ball structure is formed, and meanwhile, the wear-resisting property of the material is effectively improved by innovatively compounding the ultrahigh molecular weight polyethylene powder. As another object of the present invention, the present invention also employs a cage type polySilsesquioxane grafted ammonium diethylenetriamine pentamethylene phosphonate is used as a flame retardant, and combines nitrogen generated by the combustion of the ammonium diethylenetriamine pentamethylene phosphonate in an easily expandable agent to block oxygen, so that a compact ceramic carbon layer can be formed on the surface of a polymer when the flame retardant grafted ammonium diethylenetriamine pentamethylene phosphonate is cooperated with cage type polysilsesquioxane to realize heat insulation and oxygen isolation, thereby effectively protecting a polymer matrix, playing a flame retardant role and effectively improving the wear resistance and flame retardant property of the material.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 shows a nano-spherical Al prepared in example 1 of the present invention₂O₃SEM image of grafted palm fiber attrition resistance agent.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.

Specific examples of the invention and comparative examples Components and formulations are shown in Table 1

TABLE 1 Components and compounding ratios of examples 1-4 and comparative examples 1-4

Formulation (in g)	Example 1	Example 2	Example 3	Example 4	Comparative example 1	Comparative example 2	Comparative example 3	Comparative example 4
									PP resin	100	80	100	90	100	100	100	100
Wear-resisting agent	20	15	25	20	--	20	20	--
									Flame retardant	15	10	20	10	15	--	15	--
Reinforcing agent	25	20	30	25	25	25	--	--
									Toughening agent	10	5	10	8	10	10	10	10
Compatilizer	6	4	8	6	6	6	6	6
									Lubricant agent	1.5	1	3	2	1.5	1.5	1.5	1.5
Antioxidant agent	0.35	0.3	0.5	0.4	0.35	0.35	0.35	0.35

The specific preparation method of the embodiment and the comparative example of the invention comprises the following steps:

1. nano-spherical Al used in examples of the present invention and comparative examples₂O₃The preparation steps of the grafted palm fiber wear-resisting agent are as follows:

(1) weighing 20g of nano spherical Al₂O₃After full drying, adding the mixture into 100ml of solvent, stirring the mixture for 2 hours at normal temperature, and marking the mixture as solution A;

(2) weighing 10g of coupling agent and 2g of active agent, adding into 50ml of solvent, and ultrasonically dispersing for 20min to obtain solution B;

(3) slowly adding the solution B into the solution A under the constant temperature of 65 ℃, fully stirring and reacting for 2h, then carrying out vacuum filtration while washing with ethanol and distilled water for 3 times, putting into a drying oven, and drying for 4h at the temperature of 70 ℃ to obtain the surface-treated nano spherical Al₂O₃；

(4) Weighing 10g of the surface-treated nano spherical Al prepared in the step (3)₂O₃Adding into 50ml solvent, adding 5g coupling agent and 1g activating agent, stirring for 0.5 hr, ultrasonically dispersing at 80 kHz for 1 hr to obtain uniform dispersion, weighing 30g palm fiber, adding into the uniform dispersionStirring thoroughly for 0.5 hr, filtering, drying in oven at 85 deg.C for 3 hr to obtain nanometer spherical Al₂O₃And (4) grafting the palm fibers.

The nano spherical Al₂O₃Average particle size of 20nm, product purity of 99.9%, selected from

Combined fertilizer medium air nanotechnology development limited;

the palm fiber is treated by 6.0wt% of NaOH, the average particle size is 0.05mm, and the water content is less than 5%;

the coupling agent is a mixture of vinyl tri (beta-methoxyethoxy) silane and vinyl triethoxysilane at a mass ratio of 1: 2;

the active agent is a mixture of fatty acid methyl ester polyoxyethylene ether and coconut oil fatty acid diethanolamide in a mass ratio of 2: 1;

the solvent is a mixture of acetone and ethanol according to a mass ratio of 2: 3.

2. Preparation of cage-type polysilsesquioxane grafted ammonium diethylenetriamine pentamethylenephosphonate flame retardant used in examples and comparative examples of the present invention

Accurately weighing 50g of diethylenetriamine pentamethylene phosphoric acid, adding the 50g of diethylenetriamine pentamethylene phosphoric acid into a three-neck flask containing 25g of urea, fully stirring and refluxing at the temperature of 110 ℃ for reaction for 4h, then cooling to normal temperature, adding 10g of cage polysilsesquioxane, fully stirring, performing ultrasonic treatment for 20min, then performing constant temperature reaction at 80 ℃ for 4h, and drying at 100 ℃ to obtain the cage polysilsesquioxane grafted diethylenetriamine pentamethylene phosphonic acid ammonium flame retardant.

The cage type polysilsesquioxane is octaepoxy group cage type silsesquioxane which is selected from American hybrid plastics company;

3. preparation of high-wear-resistance flame-retardant modified polypropylene cable protection tube in any one of embodiments 1 to 4 of the invention

The method comprises the following steps: weighing PP resin, a wear-resisting agent, a flame retardant, a reinforcing agent, a toughening agent, a compatilizer, a lubricant and an antioxidant according to a ratio for later use;

step two: sequentially adding PP resin, a wear-resistant agent, a flame retardant, a reinforcing agent, a toughening agent, a compatilizer, a lubricant and an antioxidant into a high-speed mixer, and stirring at the normal temperature of 150-;

controlling the working parameters of the double-screw extruder to be 100 ~ 130 ℃ in the first zone, 150 ~ 190 ℃ in the second zone, 190 ~ 220 ℃ in the third zone, 180 ~ 210 ℃ in the fourth zone, 160 ~ 200 ℃ in the fifth zone, 130 ~ 160 ℃ in the die head, 100 ~ 150r/min in feeding speed, 250 ~ 300r/min in screw rotating speed, and extruding and granulating;

and step four, adding the special material for the high-wear-resistance flame-retardant modified polypropylene cable protection tube obtained in the step three into a tube extrusion hopper, and controlling the technological parameters of the tube extrusion production line to be 150 ~ 160 ℃ in the cylinder 1 region, 170 ~ 190 ℃ in the cylinder 2 region, 200 ~ 220 ℃ in the cylinder 3 region, 180 ~ 200 ℃ in the cylinder 4 region, 150 ~ 180 ℃ in the cylinder 5 region, 200 ~ 220 ℃ in the nose 1 region, 210 ~ 230 ℃ in the cylinder 2 region, 150 ~ 170 ℃ in the cylinder 3 region, and extrusion molding speed of 0.5m/min to obtain the high-wear-resistance flame-retardant modified polypropylene cable protection tube.

The reinforcing agent is ultra-high molecular weight polyethylene powder, the molecular weight is 300-600 ten thousand, and the particle size is 20-200 meshes;

the toughening agent is a mixture of EVA and EAA according to a mass ratio of 4: 3;

the compatilizer is PP grafted maleic anhydride, and the grafting rate is more than or equal to 2.5 percent;

the lubricant is PP wax;

the antioxidant is a mixture of an antioxidant 1010 and a secondary antioxidant 168 in a mass ratio of 3: 2.

The production methods of comparative examples 1 to 4 in the embodiment of the present invention were similar (substantially identical) to the production methods of examples 1 to 4 of the present invention described above (step 3), except that the components in the comparative examples were not added, such as: comparative example 1 formulation in table 1 has no anti-wear agent, and this is not added in step two of step 3; comparative example 2 no flame retardant was present in the formulation, this material was not added in step two of step 3; comparative example 3 formulation without reinforcing agent, step two of step 3 was not added; comparative example 4 the formulation does not contain an anti-wear agent, a flame retardant, and a reinforcing agent, and these three substances are not added in step two of step 3; the specific performance tests and results of the final products prepared in examples 1-4 and comparative examples 1-4 by the method of step 3 were as follows:

the samples obtained in the above examples 1 to 4 and comparative examples 1 to 4 were subjected to performance tests for mass abrasion in accordance with GB/T3960-.

TABLE 2 test results of examples 1 to 4 and comparative examples 1 to 4

The smaller the mass wear, the better the wear resistance

As can be seen from the test results in Table 1, the wear resistance and the flame retardance of the material can be obviously improved by adopting the self-made wear-resisting agent and the flame retardant in example 1 compared with comparative example 4 without adding the wear-resisting agent and the flame retardant in comparative example 1 and comparative example 2 compared with example 1 except that the wear-resisting agent is not added in comparative example 1 and the flame retardant is not added in comparative example 3, the wear resistance and the flame retardance of comparative example 1 and comparative example 2 are obviously inferior to those of example 1 and the ultra-high molecular weight polyethylene powder reinforcing agent is not added in comparative example 3 compared with example 3. As can be seen from the test results, the flame retardance of comparative example 3 is superior to that of example 1 but inferior to that of example 1, the wear resistance, the flame retardance and the mechanical properties of the material are most balanced by adopting the most preferable formula of example 1.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.