阅读说明：本技术 一种peek材料拉丝工艺及其在电子烟清洁毛刷中的应用 (PEEK material wire drawing process and application thereof in electronic cigarette cleaning hairbrush ) 是由 刘雪珍 刘志强 于 2021-09-13 设计创作，主要内容包括：本发明涉及一种PEEK材料拉丝工艺,包括：将聚醚醚酮颗粒原料在干燥器中进行干燥处理；将干燥处理后的聚醚醚酮材料颗粒在挤出机内加热熔融得到熔融态的聚醚醚酮；将所述熔融态的聚醚醚酮材料通过过滤装置进行过滤；将所述过滤后的熔融态的聚醚醚酮材料通过高温螺杆和喷丝板挤压形成聚醚醚酮单丝；将所述聚醚醚酮单丝牵引进入热风装置中进行定型固化得到聚醚醚酮刷丝；将所述聚醚醚酮刷丝缠绕在绕卷装置上进行收集；还将所述拉丝工艺得到的聚醚醚酮刷丝制作成为电子烟的清洁毛刷,可以耐受电子烟的加热装置的高温,且具有良好的耐磨、自润滑、及阻燃性能,使用寿命长。(The invention relates to a PEEK material wire drawing process, which comprises the following steps: drying the polyether-ether-ketone particle raw material in a dryer; heating and melting the dried polyether-ether-ketone material particles in an extruder to obtain molten polyether-ether-ketone; filtering the polyether-ether-ketone material in the molten state by a filtering device; extruding the filtered molten polyether-ether-ketone material through a high-temperature screw and a spinneret plate to form polyether-ether-ketone monofilaments; drawing the polyether-ether-ketone monofilament into a hot air device for shaping and curing to obtain polyether-ether-ketone brush wires; winding the polyether-ether-ketone brush wires on a winding device for collection; the polyether-ether-ketone brush wire obtained by the wire drawing process is also manufactured into a cleaning brush of the electronic cigarette, can resist the high temperature of a heating device of the electronic cigarette, and has good wear resistance, self-lubrication, flame retardant property and long service life.)

1. A PEEK material wire drawing process is characterized by comprising the following steps:

s1, drying the polyether-ether-ketone particle raw material in a dryer;

s2, heating and melting the dried polyether-ether-ketone material particles in an extruder to obtain a molten polyether-ether-ketone material;

s3, filtering the polyether-ether-ketone material in the molten state through a filtering device;

s4, extruding and spraying the filtered molten polyether-ether-ketone material through a high-temperature screw and a spinneret plate to form polyether-ether-ketone monofilaments;

s5, drawing the polyether-ether-ketone monofilament into a hot air device for shaping and curing to obtain polyether-ether-ketone brush filaments;

and S6, winding the polyether-ether-ketone brush wires on a winding device for collection.

2. The drawing process of PEEK material as claimed in claim 1, wherein in step S1, 2-3% (wt%) of heat stabilizer is added to the raw PEEK particles; the heat stabilizer is one or more of tris [2, 4-di-tert-butylphenyl ] phosphite, 1,3, 5-tris (3, 5-di-tert-butyl-4-hydroxybenzyl) isocyanuric acid and bis (2, 4-dicumylphenyl) pentaerythritol diphosphite; the drying temperature of the polyether-ether-ketone particle raw material is 120-130 ℃.

3. A process for drawing PEEK material as claimed in claim 1, wherein in step S2, the melting temperature of the PEEK material granules in the extruder is 390-410 ℃.

4. The PEEK material drawing process of claim 1, wherein in step S3, the filter device is composed of 6-8 layers of stainless steel nets, the stainless steel nets are: one or more of a 100 mesh stainless steel mesh, a 200 mesh stainless steel mesh, and a 300 mesh stainless steel mesh.

5. The PEEK material drawing process of claim 1, wherein in step S4, the spinneret plate of the extruder is a 3-15 hole spinneret plate.

6. The PEEK material drawing process of claim 1, wherein in the step S5, the temperature in the hot air device is 400 ℃ ± 0.5 ℃; the temperature of the polyether-ether-ketone monofilament in the hot air device is 250-285 ℃.

7. The drawing process of PEEK material as claimed in claim 1, wherein a high temperature lubricant is added to the dried particles of PEEK material in step S2.

8. Use of a PEEK brush wire made by a PEEK material wiredrawing process according to any one of claims 1-7 in an e-cigarette cleaning brush.

Technical Field

The invention relates to the field of special engineering materials, in particular to a PEEK material wire drawing process and application thereof in an electronic cigarette cleaning hairbrush.

Background

In the existing life, smoking is harmful to health and is a common consensus, and various electronic cigarettes appear in the sight of people. The existing electronic cigarettes are mainly divided into two types, one type is the electronic cigarette using electronic cigarette oil and an atomizer; the other method is to use a smoke cartridge and a needle heater to heat the smoke cartridge, so that the tobacco in the smoke cartridge is heated and cracked under the condition that the tobacco is not combusted, and the tobacco is sucked by people. The tobacco cartridge inserted in the electronic cigarette heating device has the heating temperature not reaching 800-900 ℃ of combustion, but the cracking temperature of tobacco shreds still needs to be more than 300 ℃.

When tobacco shreds in the smoke cartridge are cracked at high temperature, some atomizing media can remain in a baking area, and the residual atomizing media can generate carbon deposition after being baked repeatedly, so that the baking taste is influenced, and harmful substances such as tar, carbon deposition and the like are generated; in order to prolong the service life of the heating device of the electronic cigarette and avoid the generation of harmful substances in the use process of the electronic cigarette, the heating device of the electronic cigarette needs to be cleaned in time after the electronic cigarette is used. In the existing cleaning devices, the brush is an economical and effective cleaning device, the existing brush usually uses PA nylon material as the brush filaments, but the melting point of the PA nylon material is only 200 ℃, and the PA nylon material has no good tolerance to the high temperature remained in the heating device. If the heating device is not completely cooled, the PA nylon wires can be heated and melted to damage the equipment, and the atomized medium stuck on the equipment cannot be thoroughly cleaned after the equipment is cooled. The polyetheretherketone material has higher melting point, good wear resistance and flame retardant property, but the melting point is higher and the material is difficult to be processed into the brush filaments.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a PEEK material wire drawing process and application thereof, so as to solve the problems that the PEEK material has high melting point and is difficult to process into hairbrush wires.

The technical purpose of the invention is realized by the following technical scheme:

a PEEK material drawing process comprises the following steps:

s1, drying the polyether-ether-ketone particle raw material in a dryer;

s2, heating and melting the dried polyether-ether-ketone material particles in an extruder to obtain molten polyether-ether-ketone;

s3, filtering the polyether-ether-ketone material in the molten state through a filtering device;

s4, extruding the filtered molten polyether-ether-ketone material through a high-temperature screw and a spinneret plate to form polyether-ether-ketone monofilaments;

s5, drawing the polyether-ether-ketone monofilament into a hot air device for shaping and curing to obtain polyether-ether-ketone brush filaments;

and S6, winding the polyether-ether-ketone brush wires on a winding device for collection.

Optionally, in step S1, 2% to 3% (wt%) of a heat stabilizer is added to the peek particle raw material, where the heat stabilizer is one or more of tris [ 2.4-di-tert-butylphenyl ] phosphite, 1,3, 5-tris (3, 5-di-tert-butyl-4-hydroxybenzyl) isocyanuric acid, and bis (2, 4-dicumylphenyl) pentaerythritol diphosphite; the drying temperature of the polyether-ether-ketone particle raw material is 120-130 ℃.

Optionally, in step S2, the melting temperature of the peek particle raw material in the extruder is 390 ℃ to 410 ℃.

Optionally, in step S3, the filtering device is composed of 6-8 layers of stainless steel nets, where the stainless steel nets are: one or more of a 100 mesh stainless steel mesh, a 200 mesh stainless steel mesh, and a 300 mesh stainless steel mesh.

Optionally, in step S4, the spinneret of the extruder is a 3-15 hole spinneret.

Optionally, in the step S5, the temperature in the hot air device is 400 ℃ ± 0.5 ℃; (ii) a The temperature of the polyether-ether-ketone monofilament in the hot air device is 250-285 ℃.

Optionally, in step S2, a high-temperature-resistant lubricant is added to the particles of the peek material after the drying process.

Further, the invention also provides an electronic cigarette cleaning brush which comprises a brush rod and brush hair wires, wherein the brush hair wires are prepared by the method.

In conclusion, the invention has the following beneficial effects: the invention relates to a PEEK material wire drawing process and application thereof, comprising the following steps:

s1, drying the polyether-ether-ketone particle raw material in a dryer;

s2, heating and melting the dried polyether-ether-ketone material particles in an extruder to obtain molten polyether-ether-ketone;

s3, filtering the polyether-ether-ketone material in the molten state through a filtering device;

s4, extruding the filtered molten polyether-ether-ketone material through a high-temperature screw and a spinneret plate to form polyether-ether-ketone monofilaments;

s5, drawing the polyether-ether-ketone monofilament into a hot air device for shaping and curing to obtain polyether-ether-ketone brush filaments;

and S6, winding the polyether-ether-ketone brush wires on a winding device for collection.

According to the electronic cigarette cleaning brush, the granular PEEK material can be processed into the PEEK brush hair wires, so that the PEEK brush hair wires can be used for manufacturing the electronic cigarette cleaning brush, a heating device of an electronic cigarette can be cleaned in time, and the PEEK brush hair wires are high in melting point, good in mechanical properties such as wear resistance and self-lubrication and long in service life.

Drawings

FIG. 1 is a flow chart of the drawing of a PEEK particulate material of the present invention;

Detailed Description

In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for descriptive purposes only and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, configuration, and operation, and therefore should not be construed as limiting the present invention.

The present invention will be described in detail with reference to examples.

The invention provides a PEEK material wire drawing process, which comprises the following steps:

s1, drying the polyether-ether-ketone particle raw material in a dryer;

the drying temperature of the raw material of the polyether-ether-ketone particles is 120-130 ℃, so that the moisture attached to the raw material of the polyether-ether-ketone particles is removed, and the moisture is prevented from vaporizing and bursting in the hot melting process; meanwhile, in order to avoid modification of the PEEK material in the hot melting process, 2-3% (wt%) of a heat stabilizer is required to be added into the raw material of the PEEK particles, wherein the heat stabilizer is one or a mixture of more of tris [ 2.4-di-tert-butylphenyl ] phosphite, 1,3, 5-tris (3, 5-di-tert-butyl-4-hydroxybenzyl) isocyanuric acid and bis (2, 4-dicumylphenyl) pentaerythritol diphosphite. Specifically, polyether ether ketone to which a heat stabilizer is not added; the stability of the molten state of the polyether-ether-ketone can be influenced along with the prolonging of the time, and the melt viscosity of the polyether-ether-ketone can be increased along with the prolonging of the melting time; experiments show that the initial viscosity of the molten polyetheretherketone is 489Pa.s after the molten polyetheretherketone is kept at a constant temperature for 30 min; after said 30min, the viscosity change was 574 pa.s. After the addition of the heat stabilizer, the viscosity of the mixture system of the heat stabilizer and the polyether-ether-ketone in a molten state is increased, but the increase rate is remarkably lower than that of the pure polyether-ether-ketone.

S2, heating and melting the dried polyether-ether-ketone material particles in an extruder to obtain molten polyether-ether-ketone; specifically, the melting point temperature of pure polyetheretherketone is 360 ℃, so that the melting temperature of the polyetheretherketone particle raw material in the extruder is 390-410 ℃, and the problem that the polyetheretherketone particle raw material in the extruder is heated and retracted is avoided.

S3, filtering the polyether-ether-ketone material in the molten state through a filtering device; the filter device consists of 6-8 layers of stainless steel nets, and the stainless steel nets are: one or more of a 100 mesh stainless steel mesh, a 200 mesh stainless steel mesh, and a 300 mesh stainless steel mesh; the filtering function is to avoid the existence of unmelted polyether-ether-ketone particle raw material and the blockage of the spinneret plate by the heat stabilizer particles.

S4, extruding the filtered molten polyether-ether-ketone material through a high-temperature screw and a spinneret plate to form polyether-ether-ketone monofilaments; the spinneret plate of the extruder is a spinneret plate with 3-15 holes; as the bristles of the cleaning brush, the hardness and the diameter of the polyether-ether-ketone monofilament can meet the requirements of the bristles of the storyboard brush.

S5, drawing the polyether-ether-ketone monofilament into a hot air device for shaping and curing to obtain polyether-ether-ketone brush filaments; specifically, in order to avoid the shrinkage of the polyether-ether-ketone monofilaments in the setting and curing process, the polyether-ether-ketone monofilaments need to be subjected to circulating hot air treatment in the setting and curing process, wherein the temperature in a hot air device is 400 +/-0.5 ℃ in the setting and curing process of the polyether-ether-ketone monofilaments; and simultaneously ensuring that the temperature of the polyether-ether-ketone monofilament is 250-285 ℃.

And S6, winding the polyether-ether-ketone brush wires on a winding device for collection.

Further, in step S2, adding a high-temperature-resistant lubricant to the dried particles of polyetheretherketone material; the high-temperature-resistant lubricant is polystyrene (GPPS), and because the melting temperature of polyether-ether-ketone is very high, the conventional lubricant is decomposed due to high temperature without effectiveness.

Further, the invention also provides an electronic cigarette cleaning brush which comprises a brush rod and brush hair wires, wherein the brush rod is formed by mutually twisting two metal wires, the brush hair wires are clamped in the brush rod, and the brush hair wires are prepared by adopting the method; compared with the traditional PA nylon wire, the brush hair wire made of the PEEK material has higher melting point, good wear resistance and flame retardant property.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.