阅读说明：本技术 抗拉伸线材及其制备方法 (Stretch-resistant wire rod and preparation method thereof ) 是由 王磊 李振雄 刘静 于 2019-10-31 设计创作，主要内容包括：本发明涉及抗拉伸线材及其制备方法。本发明提供抗拉伸线材包括线材本体、固化的柔性修饰材料和节；所述固化的柔性修饰材料覆盖于所述线材本体表面上；所述节由固化在所述线材本体表面上的柔性修饰材料形成。本发明通过在线材表面修饰节状柔性结构,以达到提高结构整体的抗拉伸性能。通过将具有弹性的高分子材料制备在线材表面,形成一系列的椭球微结构阵列。在线材拉伸过程中,这种微结构可以束缚线材的拉伸,从而提高线材的拉伸力学性能。(The invention relates to a stretch-proof wire and a preparation method thereof, and provides a stretch-proof wire which comprises a wire body, a solidified flexible modification material and a section, wherein the solidified flexible modification material covers the surface of the wire body, and the section is formed by the flexible modification material solidified on the surface of the wire body.)

A stretch-resistant wire of types, comprising:

a wire body, a wire rod body and a wire rod,

the solidified flexible modification material is covered on the surface of the wire body; and

and the nodes are formed by the flexible decorating material and distributed on the surface of the wire body at equal intervals or at unequal intervals.

2. The stretch-resistant wire of claim 1, wherein the material of the wire body is selected from the group consisting of fibers or metals; wherein the fibers comprise natural fibers and/or synthetic fibers;

preferably, the synthetic fiber is selected from polyester, nylon, acrylic, polyvinyl, spandex or polyolefin stretch yarn;

more preferably, the material of the wire body is selected from nylon 66.

3. The stretch-resistant wire of claim 1 or 2, wherein the flexible finish is selected from polymeric materials that are flowable prior to curing or that change to a flowable state after elevated temperature, and that have an elasticity and mechanical properties of after curing that increase the stretch-resistant properties of the wire body.

4. The stretch-resistant wire according to claim 1 or 2, wherein the flexible finishing material is selected from or more of silicone rubber and polyester rubber;

preferably, the silicone rubber is selected from the group consisting of silicone rubber downing 184; the polyester glue is selected from phenolic resin.

5. The stretch resistant wire of wherein the flexible finish material further comprises a curative, preferably Dow Corning 184 curative, and further preferably the weight ratio of the flexible finish material to the curative is 10-120:1, more preferably 10: 1.

6. The stretch resistant wire of any one of claims 1-5 and , wherein the shortest distance between each adjacent two of the segments is 0.1-20mm and/or the longest distance is 1-50mm and/or,

the thickness of the flexible modification material covered on the surface of the wire body is 10-100 um.

7. The stretch resistant wire of wherein the segment is ellipsoidal or spheroidal and/or the distal end of the segment is angled from 0 to 50 °, preferably 20 ° to 30 °, from the axial direction of the wire body.

8, A method for improving the tensile resistance of a wire, comprising:

providing a wire body;

covering a flexible decorating material on the surface of the wire body, and enabling the flexible decorating material to form a node on the surface of the wire body;

preferably, the segments are equally or unequally spaced on the surface of the wire body.

9. The method of claim 8, comprising dropping the flexible modifying material in a flowable state at end of the wire body, moving the flexible modifying material along the wire body surface to the other end based on its own weight, and covering the wire body surface after curing.

10. The method of claim 8 or 9, wherein the radial direction of the wire body is degrees from the ground to control the flow rate of the flexible finishing material and thereby its coverage thickness on the surface of the wire body, or steps are followed in conjunction with the operation of rotating the wire body to form a fully or semi-wrapped cured flexible finishing material on the surface of the wire body or a fully or semi-wrapped section.

Technical Field

The invention relates to wire rods with excellent tensile resistance, and also provides methods for improving the tensile resistance of the wire rods.

Background

The application range of the wire is quite , and particularly, the tensile property of the wire with enhanced mechanics, such as fishing lines, has high requirements.

Disclosure of Invention

The invention provides anti-stretching wires, which improve the anti-stretching performance of the whole structure by modifying a node-shaped flexible structure on the surface of the wires, wherein a series ellipsoid microstructure array is formed by preparing an elastic high polymer material on the surface of the wires, and the microstructure can restrict the stretching of the wires in the stretching process of the wires, thereby improving the stretching mechanical property of the wires.

The invention adopts the following technical scheme:

stretch-resistant wire comprising a wire body and a cured flexible finish, wherein the cured flexible finish overlies a surface of the wire body, and the stretch-resistant wire further comprises a knot formed from the cured flexible finish on the surface of the wire body.

, the segments are equally or unequally spaced on the surface of the wire body.

, the material of the wire body can be selected from fiber or metal, wherein, the fiber comprises natural fiber and/or synthetic fiber , the synthetic fiber can be selected from terylene, nylon, acrylic fiber, polyvinyl alcohol fiber, spandex, polyolefin stretch yarn, etc.

In , the material of the wire body is selected from nylon 66 (polyhexamethylene adipamide).

The wire body of the present invention may be prepared by conventional methods in the art or may be commercially available.

The cross-sectional shape of the wire body of the present invention can be selected according to needs, and for example, can be circular, oval, approximately circular or other irregular shapes.

The diameter of the cross section of the wire body of the invention can be selected as required.

In the embodiments of the present invention, the wire body is nylon 66, and the cross-section of the wire body has a radius of 0.1-0.2 mm.

Further , the flexible trim material may be selected from polymeric materials that are in a flowable state prior to curing or that can become a flowable state (or fluid) after being heated (e.g., heated).

, the cured flexible modifying material has definite elasticity and definite mechanical properties.

, the flexible trim material can be cured to a solid state under the action of external factors such as temperature and/or ultraviolet light.

In embodiments of the present invention, the flexible trim material is selected from or more of silicone rubber and polyester rubber.

In particular, the silicone rubber may be selected from silicone rubber downing 184.

Specifically, the polyester-based gum may be selected from phenolic resins.

In the embodiments, a proper amount of curing agent is added to the flexible modifying material, which is used to polymerize the flowable polymer prepolymer into a solid elastomer.

, the curing agent is selected from Dow Corning 184 curing agent.

It is found that by reasonably controlling the ratio of the flexible modifying material to the curing agent, the hardness of the flexible modifying material after curing can be changed, so that the elastic modulus of the flexible modifying material after curing is close to (or the difference between) the elastic modulus of the wire body is the smallest.

, the weight ratio of the flexible modification material to the curing agent is 10-120:1, preferably 10-1:1, the method modifies the flexible microstructure on the surface of the wire rod, and the mechanical property of the wire rod can be effectively improved.

, the shortest distance between every two adjacent nodes is 0.1-20mm, and/or the longest distance is 1-50 mm.

In some preferred embodiments , the material of the wire body is selected from nylon 66, and the flexible decoration material is selected from silicone rubber dow corning 184.

In some preferred embodiments , the material of the wire body is selected from nylon 66, and the flexible modifying material is selected from phenolic resin.

In some embodiments of the invention, the thickness of the flexible modifying material covering the surface of the wire body is 10-100um, such as 10um, 20um, 30um, 40um, 50um, 60um, 70um, 80um, 90um, or 100 um.

In some embodiments , the flexible modifying material is added dropwise to the end of the wire body in a flowable state (or fluid) such that the flexible modifying material moves along the wire body surface toward the other end (e.g., downward) based on its own weight and then solidifies to cover the surface of the wire body, step may include orienting the radial direction of the wire body substantially parallel to the ground (or orienting the axial direction of the wire body substantially perpendicular to the ground), and orienting the radial direction of the wire body at an angle of degrees (e.g., about 10 ° to about 30 °) to the ground to control the flow rate of the flexible modifying material and thereby control the thickness of the coating on the surface of the wire body, and in addition, forming a fully or semi-wrapped solidified flexible modifying material on the surface of the wire body or forming a fully or semi-wrapped segment by such operation or by a combination of step of rotating the wire body.

In the embodiments, the flexible trim material may be cured (shrunk) at an accelerated rate by controlling the temperature of the working environment and/or by applying uv radiation during the curing process.

In some embodiments of of the invention, the segments are made ellipsoidal or spheroidal by the above-described operation, and/or the distal ends of the segments are axially held to the wire body at an angle , preferably at an angle of 0-50, preferably 20-30 (e.g., 0, 5, 10, 20, 25, or 30).

In the embodiments of the invention, the pitch (meaning the pitch in the axial direction of the wire body) between the segments is made 0.1-50mm by the above operations, such as 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.8mm, 1mm, 10mm, 20mm, 30mm or 40mm, 50mm, etc.

The invention also provides methods for improving the tensile resistance of the wire rod, which comprise the following steps:

providing a wire body;

covering a flexible decorating material on the surface of the wire body, and enabling the flexible decorating material to form nodes on the surface of the wire body.

Preferably, the segments are equally or unequally spaced on the surface of the wire body.

Wherein, the specific selection of the wire body and the flexible modification material is as above.

Methods of covering the surface of the wire body with the flexible trim material and methods of forming the segments may be as described above.

The invention also includes a stretch-resistant wire prepared by the method.

Advantageous effects

Experiments show that the mechanical property of the modified wire with the radius of 0.1mm is obviously superior to that of the wire with the radius of 0.2mm, the ductility of the wire with the radius of 0.2mm is superior to that of the wire with the breaking mechanics close to that of the wire with the radius of 0.2mm, and the preparation method is simple and convenient and has important significance for the wire with universal application.

Drawings

FIG. 1 is a schematic diagram of the process of the method for improving the tensile resistance of the wire rod according to the embodiment of the invention.

FIG. 2 is a scanning electron micrograph of a stretch resistant wire made according to example 1 of the present invention.

Fig. 3 is a scanning electron microscope image of the tensile wires prepared in examples 2 and 3 of the present invention, respectively.

Fig. 4 shows the results of the mechanical properties tests of the different wires in experiment 1.

Detailed Description

The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention. The examples do not show the specific techniques or conditions, according to the technical or conditions described in the literature in the field, or according to the product specifications. The reagents or instruments used are conventional products available from regular distributors, not indicated by the manufacturer.

The material of the wire body used below was nylon 66, the radius of the cross section of which was 0.1mm, unless otherwise specified.

The flexible decorative material used below is silicone rubber Dow Corning 184, and the curing agent is Dow Corning 184 curing agent.

The following method for improving the tensile resistance of the wire rod is shown in fig. 1.