阅读说明：本技术 一种改性超高分子量聚乙烯纤维、织物及其制备方法和应用 (modified ultrahigh molecular weight polyethylene fiber, fabric and preparation method and application thereof ) 是由 徐坚 赵晗 赵宁 于 2018-05-31 设计创作，主要内容包括：本发明属于纤维表面改性领域,公开了一种改性超高分子量聚乙烯纤维、织物及其制备方法和应用。所述纤维包括超高分子量聚乙烯纤维,以及生长在所述超高分子量聚乙烯纤维表面的氧化锌纳米线层。进一步地所述氧化锌纳米线层占超高分子量聚乙烯纤维质量的1～10％,所述超高分子量聚乙烯纤维和氧化锌纳米线层之间还包括化学包覆层,所述氧化锌纳米线层表面还覆盖化学包覆层。上述改性纤维表面的化学活性得到有效提高,通过在纤维表面引入羟基、氨基等活性基团,增强纤维和树脂基体的粘合能力；氧化锌纳米线微结构既可以为纤维和树脂基体之间提供锚定作用,又能增加织物的防穿刺能力,还可以赋予织物抗紫外性能和抗菌性能。(the invention belongs to the field of fiber surface modification, and discloses a modified ultrahigh molecular weight polyethylene fiber, a modified ultrahigh molecular weight polyethylene fabric, and a preparation method and application thereof. The fiber comprises ultrahigh molecular weight polyethylene fiber and a zinc oxide nanowire layer growing on the surface of the ultrahigh molecular weight polyethylene fiber. The zinc oxide nanowire layer accounts for 1-10% of the weight of the ultra-high molecular weight polyethylene fiber, a chemical coating layer is further arranged between the ultra-high molecular weight polyethylene fiber and the zinc oxide nanowire layer, and the surface of the zinc oxide nanowire layer is further covered with the chemical coating layer. The chemical activity of the surface of the modified fiber is effectively improved, and the bonding capacity of the fiber and a resin matrix is enhanced by introducing active groups such as hydroxyl, amino and the like on the surface of the fiber; the zinc oxide nanowire microstructure not only can provide anchoring effect between the fiber and the resin matrix, but also can increase the puncture resistance of the fabric, and can endow the fabric with ultraviolet resistance and antibacterial performance.)

1. the modified ultrahigh molecular weight polyethylene fiber is characterized by comprising an ultrahigh molecular weight polyethylene fiber and a zinc oxide nanowire layer growing on the surface of the ultrahigh molecular weight polyethylene fiber.

2. the modified ultra-high molecular weight polyethylene fiber according to claim 1, wherein the zinc oxide nanowires account for 1-10% of the weight of the ultra-high molecular weight polyethylene fiber;

Preferably, a chemical coating layer is further included between the ultra-high molecular weight polyethylene fiber and the zinc oxide nanowire layer;

Preferably, the surface of the zinc oxide nanowire layer is further covered with a chemical coating layer;

Preferably, the coating of the chemical coating layer is selected from at least one of a polyphenol compound, a polyamine compound, and a polymerization product of the polyphenol compound and the polyamine compound;

Preferably, the polyphenol compound is selected from one, two or more of dopamine, tannic acid, gallocatechin, catechin and catechol;

preferably, the polyamine compound is selected from polyethylene polyamine compounds, and the polyethylene polyamine compounds are selected from one, two or three of triethylene tetramine, tetraethylene pentamine and pentaethylene hexamine.

3. A modified ultra high molecular weight polyethylene fiber fabric woven from the modified ultra high molecular weight polyethylene fiber of claim 1 or 2.

4. a modified ultra-high molecular weight polyethylene fiber fabric is characterized in that the fabric is formed by weaving ultra-high molecular weight polyethylene fibers, and the fabric further comprises a zinc oxide nanowire layer growing on the surface of the ultra-high molecular weight polyethylene fibers;

Preferably, the zinc oxide nanowires account for 1-10% of the weight of the ultra-high molecular weight polyethylene fibers;

Preferably, a chemical coating layer is further included between the ultra-high molecular weight polyethylene fiber and the zinc oxide nanowire layer;

preferably, the surface of the zinc oxide nanowire layer is further covered with a chemical coating layer;

Wherein the chemical coating has the meaning as defined in claim 2.

5. A method of preparing modified ultra high molecular weight polyethylene fibers as claimed in claim 1 or 2 or claim 3 or modified ultra high molecular weight polyethylene fiber fabric as claimed in claim 4, comprising the steps of:

(1) synthesizing nano zinc oxide seed crystal dispersion liquid;

(2) Growing zinc oxide nanowires on the surface of the ultra-high molecular weight polyethylene fibers or the fabric woven by the ultra-high molecular weight polyethylene fibers;

Wherein the modified ultra high molecular weight polyethylene fibers have the meaning as claimed in claim 1 or 2 and the modified ultra high molecular weight polyethylene fiber fabric has the meaning as claimed in claim 4.

6. The method for preparing a modified ultra-high molecular weight polyethylene fiber fabric according to claim 3, which comprises the steps of:

(a) the modified ultra-high molecular weight polyethylene fiber is prepared by the method comprising the following steps:

(1) Synthesizing nano zinc oxide seed crystal dispersion liquid;

(2) Growing zinc oxide nanowires on the surface of the ultra-high molecular weight polyethylene fiber;

(b) The fabric is woven by the modified ultra-high molecular weight polyethylene fiber.

7. The preparation method according to claim 5 or 6, wherein the step (1) of synthesizing the nano zinc oxide seed dispersion comprises the following steps:

(1-1) preparing a zinc acetate ethanol mother liquor;

(1-2) preparing sodium hydroxide ethanol mother liquor;

(1-3) respectively heating the zinc acetate ethanol solution and the sodium hydroxide ethanol solution to 50-70 ℃, mixing, stirring at 50-70 ℃ for 40-60 min, and cooling to room temperature to obtain the nano zinc oxide seed crystal dispersion liquid.

Preferably, the growing zinc oxide nanowires on the surface of the ultrahigh molecular weight polyethylene fiber or fabric in the step (2) comprises the following steps:

(2-1) seeding: soaking the ultra-high molecular weight polyethylene fiber or fabric in the zinc oxide seed crystal dispersion liquid obtained in the step (1), and then taking out and baking to obtain the seeded ultra-high molecular weight polyethylene fiber or fabric;

(2-2) carrying out hydrothermal reaction on a zinc nitrate hexahydrate aqueous solution, a urotropine (hexamethylenetetramine) aqueous solution and the planted ultrahigh molecular weight polyethylene fiber or fabric, taking out the ultrahigh molecular weight polyethylene fiber or fabric after the reaction is finished, washing and drying to obtain the ultrahigh molecular weight polyethylene fiber or fabric with zinc oxide nanowires growing on the surface;

preferably, in the step (2-1), the ultra-high molecular weight polyethylene fiber or fabric may be selected from pure ultra-high molecular weight polyethylene fiber or fabric washed and dried with acetone or ethanol, or ultra-high molecular weight polyethylene fiber or fabric with a chemical coating layer attached to the surface;

Preferably, the coating of the chemical coating layer is selected from at least one of a polyphenol compound, a polyamine compound, and a polymerization product of the polyphenol compound and the polyamine compound;

preferably, the ultra-high molecular weight polyethylene fiber or fabric with the chemical coating layer attached to the surface is prepared by the following steps:

Adding polyphenol compounds and/or polyamine compounds into an alkaline buffer solution to prepare a polyphenol and/or polyamine solution with the concentration of 1-8 mg/mL;

Preferably, the alkaline buffer solution is selected from at least one of a boric acid-potassium chloride-sodium hydroxide buffer solution, a disodium hydrogen phosphate-sodium dihydrogen phosphate buffer solution, and a Tris-HCl buffer solution;

Preferably, the mass ratio of the polyphenol compound to the polyamine compound ranges from (1:2) to (4: 1);

soaking the ultra-high molecular weight polyethylene fiber or fabric washed and dried by acetone or ethanol into the solution obtained in the step one, then carrying out oscillation reaction on a shaking table at the speed of 40-100 rmp for 4-24 h, taking out the fiber or fabric, washing and drying the fiber or fabric, and obtaining the chemically coated and modified ultra-high molecular weight polyethylene fiber or fabric;

preferably, in the step (2-1), the soaking time is 5-15 min, and the baking temperature is 60-85 ℃;

preferably, the above operations of soaking and baking may be repeated a plurality of times;

Preferably, in the step (2-1), the concentrations of the zinc nitrate hexahydrate aqueous solution and the urotropine aqueous solution are both 0.02-0.2 mol/L;

the temperature of the hydrothermal reaction is 60-90 ℃, and the reaction time is 4-12 h;

preferably, the washing is a plurality of times of rinsing with deionized water.

8. the production method according to any one of claims 5 to 7, characterized by further comprising step (3): carrying out post-treatment on the ultra-high molecular weight polyethylene fiber or fabric with the zinc oxide nanowires growing on the surface, which is obtained in the step (2), wherein the post-treatment is to attach a chemical coating layer on the surface of the fiber or fabric; preferably, the coating of the chemical coating is selected from at least one of a polyphenolic compound, a polyamine-based compound, and a polymerization product of the polyphenolic compound and the polyamine-based compound.

9. An ultra-high molecular weight polyethylene fiber-reinforced resin-based composite material, characterized in that the composite material comprises the modified ultra-high molecular weight polyethylene fiber according to claim 1 or 2; preferably, the resin in the ultra-high molecular weight polyethylene fiber reinforced resin-based composite material may be selected from at least one of polyolefin resin, aqueous polyurethane resin, vinyl ester resin and epoxy resin.

10. use of the modified ultra high molecular weight polyethylene fiber according to claim 1 or 2 for reinforcement of composite materials and penetration-resistant fabrics.

Technical Field

The invention belongs to the field of fiber surface modification, relates to a modified ultra-high molecular weight polyethylene fiber and fabric, and a preparation method and application thereof, and particularly relates to an ultra-high molecular weight polyethylene fiber and fabric modified by chemical coating and zinc oxide nanowire combination, and a preparation method and application thereof.

Background

the ultra-high molecular weight polyethylene fiber (also called UHMWPE fiber) is one of three high-performance fibers in the world, and is the only high-performance fiber with independent intellectual property manufacturing technology and international market competitiveness in China. Compared with other fiber varieties (including carbon fiber and aramid fiber), the UHMWPE fiber has the advantages of light weight, high strength, high modulus, impact resistance, wear resistance, corrosion resistance, irradiation resistance and the like, is widely applied to the fields of bulletproof, explosion prevention, industrial protection, aerospace, ocean engineering, deep sea fishery, life health and the like, and is one of important strategic high-performance materials which are related to national safety and economic development.

UHMWPE fibers are widely used in composites as reinforcement for resin materials, but at the same time there are still a number of problems. The performance of the UHMWPE fiber reinforced resin matrix composite material mainly depends on the interfacial bonding force between the fiber and the resin matrix. However, the UHMWPE fiber has large surface inertness and few active functional groups, so that the interfacial adhesion between the UHMWPE fiber and a resin matrix is poor, more defects exist, the interlaminar shear performance of the material is low, the overall mechanical performance of the composite material is influenced to a great extent, and the application range of the composite material is limited. Therefore, in order to improve the performance of the composite more completely, the surface of the UHMWPE fiber needs to be modified to increase the interfacial strength between the fiber and the resin.

in addition, along with the expansion of application requirements, research on functionalized UHMWPE fabrics is also urgently needed, for example, the UHMWPE fabrics have the functions of ultraviolet resistance, antibiosis and the like.

Disclosure of Invention

The invention mainly aims to solve the problems of poor mechanical property of UHMWPE fiber reinforced resin matrix composite materials and the like caused by smooth surface, high chemical inertness and poor wettability with resin of the existing UHMWPE fibers, and further provides a modified UHMWPE fiber with a synergistic effect of a chemical coating method and surface-grown zinc oxide nanowires and a preparation method thereof. And because the hardness of the zinc oxide is higher, the puncture-proof capability of the fabric is also improved to a certain extent. In addition, the nano zinc oxide has excellent ultraviolet absorption performance and antibacterial performance, so that the ultraviolet radiation resistance and antibacterial performance of the fabric are improved to a certain extent.

the invention provides a modified ultra-high molecular weight polyethylene fiber, which comprises an ultra-high molecular weight polyethylene fiber and a zinc oxide nanowire layer growing on the surface of the ultra-high molecular weight polyethylene fiber.

Preferably, the zinc oxide nanowires constitute 1 to 10%, for example 2 to 6%, exemplarily 2, 4 or 6% of the ultra-high molecular weight polyethylene fibers by mass.

according to the embodiment of the invention, a chemical coating layer is also included between the ultra-high molecular weight polyethylene fiber and the zinc oxide nanowire layer.

According to an embodiment of the present invention, the surface of the zinc oxide nanowire layer is further covered with a chemical coating layer.

according to the invention, the coating of the chemical coating is selected from at least one of a polyphenol compound, a polyamine compound and a polymerization product of the polyphenol compound and the polyamine compound;

for example, the polyphenol compound is selected from one, two or more of dopamine, tannic acid, gallocatechin, catechin and catechol, preferably, the polyphenol compound is selected from dopamine, tannic acid, gallocatechin, catechin or catechol;

For example, the polyamine-based compound is selected from polyethylene polyamine-based compounds, preferably, the polyethylene polyamine-based compound is selected from one, two or three of triethylene tetramine, tetraethylene pentamine and pentaethylene hexamine.

The invention also provides a modified ultrahigh molecular weight polyethylene fiber fabric which is formed by weaving the modified ultrahigh molecular weight polyethylene fibers.

The invention also provides another modified ultra-high molecular weight polyethylene fiber fabric which is formed by weaving ultra-high molecular weight polyethylene fibers, and the fabric also comprises a zinc oxide nanowire layer growing on the surface of the ultra-high molecular weight polyethylene fibers.

Preferably, the zinc oxide nanowires account for 1-10%, such as 2-6%, exemplarily, 2, 4 or 6% of the weight of the ultra-high molecular weight polyethylene fibers;

According to the embodiment of the invention, a chemical coating layer is also arranged between the ultra-high molecular weight polyethylene fiber and the zinc oxide nanowire layer;

According to the embodiment of the invention, the surface of the zinc oxide nanowire layer is also covered with a chemical coating layer;

Wherein the chemical coating layer has the same meaning as above.

the invention also provides a preparation method of the modified ultrahigh molecular weight polyethylene fiber or the modified ultrahigh molecular weight polyethylene fiber fabric, which comprises the following steps:

(1) synthesizing nano zinc oxide seed crystal dispersion liquid;

(2) Growing zinc oxide nanowires on the surface of the ultra-high molecular weight polyethylene fiber or the fabric woven by the ultra-high molecular weight polyethylene fiber.

the invention also provides a preparation method of the modified ultrahigh molecular weight polyethylene fiber fabric, which comprises the following steps:

(a) the modified ultra-high molecular weight polyethylene fiber is prepared by the method comprising the following steps:

(1) synthesizing nano zinc oxide seed crystal dispersion liquid;

(2) growing zinc oxide nanowires on the surface of the ultra-high molecular weight polyethylene fiber;

(b) the fabric is woven by the modified ultra-high molecular weight polyethylene fiber.

according to the preparation method of the invention, the synthesis of the nano zinc oxide seed crystal dispersion liquid in the step (1) comprises the following steps:

(1-1) preparing a zinc acetate ethanol mother liquor;

(1-2) preparing sodium hydroxide ethanol mother liquor;

(1-3) respectively heating the zinc acetate ethanol solution and the sodium hydroxide ethanol solution to 50-70 ℃, mixing, stirring at 50-70 ℃ for 40-60 min, and cooling to room temperature to obtain the nano zinc oxide seed crystal dispersion liquid.

wherein, the concentration of the zinc acetate ethanol mother liquor in the step (1-1) is 0.5-15 mg/mL, such as 1-10 mg/mL, for example, 0.8mg/mL, 2mg/mL, 4mg/mL, 4.2mg/mL, 5mg/mL, 10 mg/mL; illustratively, 0.1-0.5 g of zinc acetate dihydrate is dissolved in 50-120 mL of ethanol;

The zinc acetate ethanol mother liquor is prepared by the following operations: dissolving zinc acetate dihydrate in ethanol, heating and stirring for 3-10 min at the temperature of 40-60 ℃ and the stirring speed of 200-600 r/min, and cooling to room temperature to obtain a zinc acetate ethanol mother liquor.

Wherein the concentration of the NaOH mother liquor in the step (1-2) is 0.2-2 mg/mL, such as 0.36mg/mL, 0.625mg/mL, 0.7mg/mL, 0.75mg/mL, 0.86mg/mL, 1.5 mg/mL; exemplarily, 0.05-0.12 g of sodium hydroxide is dissolved in 80-140 mL of ethanol;

the sodium hydroxide ethanol mother liquor is prepared by the following operations: dissolving sodium hydroxide in ethanol, heating and stirring for 3-10 min at the temperature of 40-60 ℃ and the stirring speed of 200-600 r/min, and cooling to room temperature to obtain a sodium hydroxide ethanol mother liquor.

Wherein the zinc acetate ethanol solution in the step (1-3) is obtained by diluting the zinc acetate ethanol mother liquor in the step (1-1), and preferably, the concentration of the zinc acetate ethanol solution is 1/(5-15), preferably 1/(6-12), of the concentration of the zinc acetate ethanol mother liquor, such as 1/6, 1/8 and 1/12; illustratively, taking 30-60 mL of zinc acetate ethanol mother liquor, and adding ethanol to ensure that the volume of the zinc acetate ethanol solution is 360 mL;

The sodium hydroxide ethanol solution in the step (1-3) is obtained by diluting the sodium hydroxide ethanol mother liquor in the step (1-2), preferably, the concentration of the sodium hydroxide ethanol solution is 1/(2-6), preferably 1/(2-5), such as 3/14, 3/7, of the concentration of the sodium hydroxide ethanol mother liquor; illustratively, taking 30-60 mL of sodium hydroxide ethanol mother liquor, and adding ethanol to ensure that the volume of the sodium hydroxide ethanol solution is 140 mL;

preferably, the zinc acetate ethanol solution and the sodium hydroxide ethanol solution are heated to 50-70 ℃ under the stirring condition of 200-600 r/min; preferably, the volume ratio of the zinc acetate ethanol solution to the sodium hydroxide ethanol solution is (15-20): 5-10, such as 18: 7; illustratively, 360mL of an ethanol solution of zinc acetate and 140mL of an ethanol solution of sodium hydroxide are mixed to prepare 500mL of a nano zinc oxide seed crystal dispersion; if a large amount or a small amount of nano zinc oxide seed crystal dispersion liquid needs to be prepared, the dosage of related materials can be enlarged or reduced in proportion.

According to the preparation method of the invention, the growing zinc oxide nanowire on the surface of the ultrahigh molecular weight polyethylene fiber or the fabric woven by the ultrahigh molecular weight polyethylene fiber in the step (2) comprises the following steps:

(2-1) seeding: soaking the ultrahigh molecular weight polyethylene fiber or the fabric woven by the ultrahigh molecular weight polyethylene fiber in the zinc oxide seed crystal dispersion liquid in the step (1), and then taking out and baking to obtain the seeded ultrahigh molecular weight polyethylene fiber or fabric;

(2-2) carrying out hydrothermal reaction on the zinc nitrate hexahydrate aqueous solution, the urotropine (hexamethylenetetramine) aqueous solution and the planted ultrahigh molecular weight polyethylene fiber or fabric, taking out the ultrahigh molecular weight polyethylene fiber or fabric after the reaction is finished, washing and drying to obtain the ultrahigh molecular weight polyethylene fiber or fabric with the zinc oxide nanowires growing on the surface.

Preferably, in the step (2-1), the ultra-high molecular weight polyethylene fiber or the fabric woven by the ultra-high molecular weight polyethylene fiber may be selected from pure ultra-high molecular weight polyethylene fiber or fabric washed and dried by acetone or ethanol, or ultra-high molecular weight polyethylene fiber or fabric with a chemical coating layer attached to the surface;

Preferably, the coating of the chemical coating layer is selected from at least one of a polyphenol compound, a polyamine compound, and a polymerization product of the polyphenol compound and the polyamine compound;

for example, the polyphenol compound is selected from one, two or more of dopamine, tannic acid, gallocatechin, catechin and catechol, preferably, the polyphenol compound is selected from dopamine, tannic acid, gallocatechin, catechin or catechol;

for example, the polyamine-based compound is selected from polyethylene polyamine-based compounds, preferably, the polyethylene polyamine-based compound is selected from one, two or three of triethylene tetramine, tetraethylene pentamine and pentaethylene hexamine.

preferably, the ultra-high molecular weight polyethylene fiber or fabric with the chemical coating layer attached to the surface is prepared by the following steps:

Adding polyphenol compounds and/or polyamine compounds into an alkaline buffer solution to prepare a polyphenol and/or polyamine solution with the concentration of 1-8 mg/mL;

Preferably, the alkaline buffer solution is selected from at least one of a boric acid-potassium chloride-sodium hydroxide buffer solution, a disodium hydrogen phosphate-sodium dihydrogen phosphate buffer solution, and a Tris-HCl buffer solution; illustratively, the alkaline buffer solution is selected from a disodium hydrogen phosphate-sodium dihydrogen phosphate buffer or a Tris-HCl buffer;

Preferably, the mass ratio of the polyphenol compound to the polyamine compound ranges from (1:2) to (4: 1).

soaking the ultra-high molecular weight polyethylene fiber or fabric washed and dried by acetone or ethanol into the solution obtained in the step one, then carrying out oscillation reaction on a shaking table at the speed of 40-100 rmp for 4-24 h, taking out the fiber or fabric, washing and drying the fiber or fabric, and obtaining the chemically coated and modified ultra-high molecular weight polyethylene fiber or fabric;

preferably, in order to increase wettability, ethanol with the volume fraction of 10-20% can be added into the solution in the step (i) before the oscillation reaction;

preferably, the washing is a plurality of times of rinsing with deionized water.

Preferably, in the step (2-1), the soaking time is 5-15 min (for example, 10min), the baking temperature is 60-85 ℃ (for example, 85 ℃), and the baking is 15-30 min (for example, 20min), wherein the baking is to increase the adhesion of the zinc oxide crystal seeds on the fibers and the fabrics;

preferably, the above soaking and baking operations may be repeated a plurality of times, for example 2-5 times, exemplarily 3 times.

preferably, in the step (2-1), the concentrations of the zinc nitrate hexahydrate aqueous solution and the urotropine aqueous solution are both 0.02-0.2 mol/L, such as 0.03-0.15 mol/L, and exemplarily, the concentrations are both 0.03 mol/L;

The temperature of the hydrothermal reaction is 60-90 ℃, and the reaction time is 4-12 h; illustratively, the reaction is carried out at 85 ℃ for 6 h;

preferably, the washing is a plurality of times of rinsing with deionized water.

According to the embodiment of the invention, the preparation method of the modified ultra-high molecular weight polyethylene fiber and fabric further comprises the step (3) of post-treating the ultra-high molecular weight polyethylene fiber or fabric with the zinc oxide nanowires growing on the surface obtained in the step (2), wherein the post-treatment is to attach a chemical coating layer on the surface of the fiber or fabric; preferably, the chemical coating layer has the same meaning as in the above step (2-1).

Furthermore, the invention also provides the modified ultrahigh molecular weight polyethylene fiber or fabric obtained by the preparation method.

Further, the invention also provides an ultrahigh molecular weight polyethylene fiber reinforced resin matrix composite material, which comprises the modified ultrahigh molecular weight polyethylene fiber; preferably, the resin in the ultra-high molecular weight polyethylene fiber reinforced resin-based composite material may be selected from at least one of polyolefin resin, aqueous polyurethane resin, vinyl ester resin and epoxy resin.

furthermore, the invention also provides application of the modified ultrahigh molecular weight polyethylene fiber in preparation of an ultrahigh molecular weight polyethylene fiber reinforced resin matrix composite material.

Furthermore, the invention also provides the application of the modified ultra-high molecular weight polyethylene fiber in the aspects of composite material reinforcement and anti-puncture fabrics.

the invention has the beneficial effects that:

firstly, the chemical activity of the surface of the ultra-high molecular weight polyethylene fiber can be effectively improved by a chemical coating method of pretreatment, and active groups such as hydroxyl, amino and the like are introduced into the surface of the fiber, so that the bonding capability of the fiber and a resin matrix can be enhanced;

secondly, growing a zinc oxide nanowire microstructure on the surface of the ultra-high molecular weight polyethylene fiber by a hydrothermal method, so that the roughness of the surface of the fiber is increased, and the hard zinc oxide nanowire not only can provide an anchoring effect between the fiber and a resin matrix, but also can increase the puncture-proof capacity of the fabric;

thirdly, active groups are further introduced to the surface of the fiber by a post-treatment chemical coating method, and simultaneously the combination between the zinc oxide nano wire and the fiber can be reinforced;

The invention introduces a nano zinc oxide structure on the surface of the ultra-high molecular weight polyethylene fabric, and can improve the uvioresistant performance and the antibacterial performance of the fabric.

Drawings

FIG. 1 is a scanning electron micrograph of an unmodified UHMWPE fibre at 15000 times magnification;

FIG. 2 is a scanning electron micrograph of the modified UHMWPE fibre obtained in example 1 at 10000 times magnification;

FIG. 3 is a scanning electron micrograph of the modified UHMWPE fiber obtained in example 1 at 150000 times magnification;

FIG. 4 is an X-ray polycrystalline diffraction pattern of the modified UHMWPE fiber obtained in example 1;

FIG. 5 is a graph of the results of thermogravimetric analysis of the modified UHMWPE fiber obtained in example 1;

FIG. 6 is a scanning electron micrograph of the modified UHMWPE fiber obtained in example 2 at 150000 times magnification;

FIG. 7 is a graph of the puncture test results for the modified UHMWPE fabric obtained in example 5;

fig. 8 is a graph of the interlaminar shear test results for the UHMWPE fabric sandwich composite obtained from example 6.

Detailed Description

the invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that various changes or modifications can be made by those skilled in the art after reading the disclosure of the present invention, and such equivalents also fall within the scope of the invention.

The experimental methods used in the following examples are all conventional methods unless otherwise specified; reagents, materials and the like used in the following examples are commercially available unless otherwise specified.

part of the instrument information is as follows:

A material universal tester: shenzhen san si materials testing machine, UTM 16555;

scanning electron microscope: japan, JEOL, JSM-7500F;

x-ray polycrystalline diffractometer: the Netherlands, Pasonaceae, Empyrean.