CN116288871A

CN116288871A - Preparation method of antibacterial and antiviral summer sleeping mat fabric

Info

Publication number: CN116288871A
Application number: CN202310436163.3A
Authority: CN
Inventors: 曹新建; 高强
Original assignee: Shanghai Yingnai Weixin Material Technology Co ltd
Current assignee: Shanghai Yingnai Weixin Material Technology Co ltd
Priority date: 2023-04-21
Filing date: 2023-04-21
Publication date: 2023-06-23

Abstract

The invention relates to the technical field of summer sleeping mat preparation, in particular to the field of IPC B27, and more particularly relates to a preparation method of an antibacterial and antiviral summer sleeping mat fabric. The invention utilizes the excellent functionality of antibacterial and antiviral powder and the characteristics of high strength, wear resistance, cool feeling, water washing resistance and the like of UHMWPE, combines with the fabric tissue design to prepare the high-end summer sleeping mat with the characteristics of antibacterial, antiviral, ventilation, cooling, high strength, wear resistance and the like, and has extremely important application prospect.

Description

Preparation method of antibacterial and antiviral summer sleeping mat fabric

Technical Field

The invention relates to the technical field of summer sleeping mat preparation, in particular to the field of IPC B27, and more particularly relates to a preparation method of an antibacterial and antiviral summer sleeping mat fabric.

Background

The ultra-high molecular weight polyethylene (UHMWPE) fiber is the fiber with the highest specific strength in the industrialized fiber materials at present, has the characteristics of wear resistance, impact resistance, corrosion resistance, self lubrication, low friction coefficient, safety, sanitation, no toxicity and the like, and is widely applied to the fields of national defense, military industry, ocean engineering, individual protection and the like. With the continuous penetration of the army and civil integration, the application of UHMWPE fibers in the civil market is gradually increased, wherein the requirements of the civil market (such as an antibacterial and antiviral summer sleeping mat and the like) mainly comprising antibacterial and antiviral are also more and more urgent.

The development trend of the mat is to have the characteristics of coolness, antibiosis, wear resistance, water washing resistance, easy treatment and the like. The summer sleeping mat five-flower eight doors popular in the market at present comprise a cow leather summer sleeping mat, a bamboo summer sleeping mat, an ice silk summer sleeping mat and the like.

The cowhide mat has the advantages of cooling feeling and comfort feeling; the defects are that the weight is large, the price is high, and the management is difficult. The bamboo mat has the advantages of cooling sensation; the utility model has the advantages of easy mildew, difficult management, large storage space and short service life.

In recent years, the popular ice silk mat is various, mainly made of polyester fiber, and is prepared on various weaving machines by taking a simple tissue or a small jacquard tissue as a basic tissue. Has the advantages of water washing resistance and easy management; the defects are that the cooling feeling is insufficient, the storage time is long, and the problems of mildew and the like can also occur.

The patent document with the application number of CN 201910056008.2 discloses a preparation method of a multifunctional summer sleeping mat, which is endowed with the versatility of the summer sleeping mat by adding functional materials with different cool feeling, mosquito resistance, bacteria resistance and the like, but the improvement of the wear resistance and the virus resistance of the summer sleeping mat is not obvious.

Patent document with application number of CN201610455326.2 discloses a snail-proof antibacterial bamboo mat and a production process thereof, and the bamboo mat prepared by designing the structure and the preparation process of the bamboo mat has excellent antibacterial effect on staphylococcus aureus, escherichia coli and candida albicans, but has limited antibacterial effect.

In summary, the advantages and disadvantages of the existing mat are obvious, especially the characteristics of antibiosis, antivirus, cooling feeling, easy management and the like are seriously lacking, and the market is in urgent need for a high-end mat with the integrated characteristics of cooling feeling, antibiosis, antivirus, easy management and the like.

Disclosure of Invention

In order to solve the problems, the first aspect of the invention provides a preparation method of an antibacterial and antiviral summer sleeping mat fabric, which comprises the following steps:

s1: premixing antibacterial and antiviral powder, a dispersing agent and UHMWPE to obtain the mixture.

S2: and adding the mixture into a solvent, and uniformly mixing under the combined action of ultrasonic wave and high-speed shearing of an emulsifying machine to obtain UHMWPE spinning stock solution.

S3: and (3) spinning, extracting and thermally drawing the spinning solution obtained in the step (S2) by adopting a gel spinning process to obtain the antibacterial and antiviral UHMWPE fiber.

S4: at least takes antibacterial and antiviral UHMWPE fiber as raw material, adopts original tissue, change tissue, combined tissue or warp double tissue as basic tissue, and prepares the antibacterial and antiviral summer sleeping mat fabric on a loom.

In the mixture, the UHMWPE accounts for 90-99.4% by weight, the antibacterial and antiviral powder accounts for 0.5-10% by weight, and the dispersant accounts for the balance.

Preferably, the UHMWPE has an average molecular weight of 200-500 ten thousand; further, the average molecular weight of the UHMWPE is preferably 200 ten thousand, 300 ten thousand, 400 ten thousand.

In some preferred embodiments, the UHMWPE is purchased from 040 manufactured by korean oil chemical industry co.

Preferably, the antibacterial and antiviral powder includes antibacterial powder and antiviral powder.

Preferably, the weight ratio of the antibacterial powder to the antiviral powder is (1-9): (11-19); further preferably, it is 1:3.

Preferably, the antibacterial powder comprises one or more of zinc oxide and nano silver; further preferred is zinc oxide.

In some preferred embodiments, the zinc oxide is purchased from zinc oxide jh-2103 manufactured by SANITIZED, switzerland.

In some preferred embodiments, the nanosilver is from university of south through.

Preferably, the antiviral powder comprises graphene.

Preferably, the particle size of the graphene is 5-20nm; further preferably, it is 10nm.

In some preferred embodiments, the graphene is purchased from guangzhou gold sea technologies, inc.

Preferably, the weight ratio of UHMWPE to the antibacterial and antiviral powder is (20-100): 1.

the inventors have unexpectedly found that UHMWPE with an average molecular weight of 200-500 ten thousand is selected as one of the raw materials for preparing the antibacterial and antiviral UHMWPE fiber, and the weight ratio of UHMWPE to antibacterial and antiviral powder is (20-100): 1, the antibacterial and antiviral UHMWPE fiber obtained by the preparation method can be improved, and meanwhile, the wear resistance and toughness of the UHMWPE fiber can be ensured. This is probably due to the fact that UHMWPE of a specific molecular weight, while being able to improve the wear resistance and impact strength of UHMWPE fibers, is poor in toughness and stability due to its too high molecular weight, long molecular chains, and molecular aggregation morphology, and is susceptible to shear forces or degradation at high temperatures. The inventors have unexpectedly found that the toughness of the UHMWPE fibers can be improved when an amount of the antibacterial and antiviral powder is added. However, the addition amount of the antibacterial and antiviral powder is not excessive, and the impact strength and the wear resistance of the UHMWPE are affected by excessive addition amount of the antibacterial and antiviral powder, which may cause the poor dispersibility of the antibacterial and antiviral powder in a system, so that the antibacterial and antiviral powder loaded on the UHMWPE is uneven, and the performance of the prepared UHMWPE is reduced. However, only the addition of inorganic powder is limited to improving UHMWPE.

The inventor creatively discovers that specific zinc oxide and/or nano silver are selected as antibacterial powder, graphene is selected as antiviral powder, and the weight ratio of the antibacterial powder to the antiviral powder is (1-9): in the case of (11-19), the prepared UHMWPE fiber has excellent antibacterial and antiviral effects, and simultaneously the wear resistance and strength of the UHMWPE fiber can be improved. The inorganic powder can be uniformly dispersed in the system under the action of a specific dispersing agent, so that the UHMWPE is hybridized and modified, the wear resistance and strength of UHMWPE fibers are improved, on the other hand, zinc ions can penetrate through cell membranes to be in contact with bacteria, damage the cell membranes and simultaneously combine with sulfhydryl groups on protease in the bacteria, damage the structure of the bacteria and the activity of protease, thereby playing a role in resisting bacteria and sterilizing, being particularly suitable for pathogenic bacteria such as escherichia coli, staphylococcus aureus, salmonella and the like, and graphene with specific particle size has strong adsorptivity, not only can rapidly capture bacteria and viruses, but also can generate high-activity oxygen, other ions and free radicals to be adhered on the surfaces of the viruses, and damage the structure and functions of viral proteins and nucleic acids, so that the captured bacteria and viruses can be rapidly inactivated, and the antiviral efficacy is achieved. In addition, zinc is an essential trace element for human body, and has good compatibility with human body, so that the zinc is very suitable for being used as a raw material for preparing the summer sleeping mat.

Preferably, the particle size of the dispersant is 0.5-10mm, and the viscosity at 150 ℃ is less than 1200 mPa.s; further preferably, the particle size of the dispersant is 0.5mm and the viscosity at 150 ℃ is < 1000 mPa.s.

In some preferred embodiments, the dispersant is purchased from dispersant p122 produced by the winning group.

Preferably, the specific steps of premixing in step S1 are: premixing is performed under high shear.

Preferably, the speed of premixing is 1500-3000r/min.

Preferably, the solvent comprises one or more of white oil, paraffin oil, decalin.

In some preferred embodiments, the white oil is purchased from Jiangsu BEN 70# manufactured by Chi Petroleum technologies Co., ltd.

Preferably, the paraffin oil has an average molecular weight of 800-1500 and a softening point of 90-120 ℃; further preferably, the paraffin oil has an average molecular weight of 800-1500 and a softening point of 90-120 ℃.

In some preferred embodiments, the paraffinic oil is purchased from guangzhou Yuan chemical engineering Co., ltd.

The CAS number of the decalin is 91-17-8.

Preferably, the mass concentration of UHMWPE in the UHMWPE spinning dope in step S2 is 6-9wt%.

Preferably, the parameters of the ultrasonic wave in step S2 are: the frequency F is more than or equal to 20kHz, the power density p is more than or equal to 0.3w/cm ² 。

Preferably, in the step S2, the stirring speed of the emulsifying machine is 1000-3500r/min, and the stirring time is 2-5h.

The inventor creatively discovers that when a specific solvent is selected and a specific ultrasonic and emulsification process is matched, the stability of UHMWPE spinning solution can be improved while UHMWPE spinning solution is successfully prepared. This may be due to the fact that the addition of a suitable amount of specific solvent can promote the disentanglement of the long-chain molecules of the UHMWPE and has a lubricating effect in the UHMWPE, so that the displacement of the chain segments becomes easy, the fluidity and the workability of the UHMWPE are improved, and the control of the ultrasonic emulsification process can avoid the breakage of the molecular chains in the UHMWPE and simultaneously can enable the UHMWPE to be uniformly mixed with other raw materials, so that the UHMWPE spinning stock solution can be successfully prepared, and further the UHMWPE fibers and the mat can be prepared.

The spinning method in the step S3 is gel spinning method.

In some preferred schemes, the antibacterial and antiviral UHMWPE fibers are used as raw materials in the step S4, so that the pure antibacterial and antiviral UHMWPE mat can be manufactured.

In some preferred schemes, the antibacterial and antiviral UHMWPE fibers and the flax fibers are adopted as raw materials in the step S4, so that the multifunctional summer sleeping mat with ventilation, antibacterial, antiviral, moisture absorption, sweat release and the like can be manufactured.

Preferably, the number of the flax fibers is 18-20tex.

In some preferred embodiments, the flax fiber is purchased from the short flax textile company, yixing, inc.

The specific implementation manner of the step S4 is as follows:

m1, raw material selection: the antibacterial and antiviral UHMWPE fiber is used as the surface warp yarn, the flax fiber blended yarn is used as the inner warp yarn, the antibacterial and antiviral UHMWPE fiber is used as the weft yarn, and the warp double structure is used as the basic structure.

M2, technological parameter formulation: the linear density of the antibacterial and antiviral UHMWPE fiber is 700-900D, and the linear density of the flax fiber blended yarn is 700-900D; the arrangement ratio of the front and the back warp yarns is (1-2): 1, a step of; the warp density of the fabric is 15-20 pieces/cm, and the weft density is 5-15 pieces/cm.

M3, preparing a fabric: on a loom, an antibacterial and antiviral summer sleeping mat fabric is manufactured by adopting a double-shaft weaving method.

The inventors have unexpectedly found that in some preferred embodiments, the step S4 uses antibacterial and antiviral UHMWPE fibers and flax fibers as raw materials, and may be made into a multifunctional summer sleeping mat with ventilation, antibacterial, antiviral, moisture absorption, perspiration, etc. The UHMWPE fiber and the flax fiber with specific numbers, which are prepared by the method, are selected to be used as the raw materials for preparing the mat, and the mat has high wear resistance and impact resistance and excellent water absorbability through specific linear density, specific arrangement ratio, specific warp and weft density and other processes, so that the antibacterial and antiviral mat prepared by the method has good softness, fast heat dissipation and excellent water absorbability and wear resistance, and antibacterial performances can be further improved.

The invention provides an antibacterial and antiviral summer sleeping mat fabric prepared by the preparation method of the antibacterial and antiviral summer sleeping mat fabric.

The beneficial effects are that:

1. the invention selects UHMWPE with the average molecular weight of 200-500 ten thousand as one of raw materials for preparing the antibacterial and antiviral UHMWPE fiber, and the weight ratio of the UHMWPE to the antibacterial and antiviral powder is (20-100): 1, the antibacterial and antiviral UHMWPE fiber obtained by the preparation method can be improved, and meanwhile, the wear resistance and toughness of the UHMWPE fiber can be ensured.

2. According to the invention, the UHMWPE spinning solution can be successfully prepared by selecting a specific solvent and matching with a specific ultrasonic and emulsifying process, and meanwhile, the stability of UHMWPE can be improved.

3. The invention selects specific zinc oxide and/or nano silver as antibacterial powder, graphene as antiviral powder, and the weight ratio of the antibacterial powder to the antiviral powder is (1-9): in the case of (11-19), the prepared UHMWPE fiber has excellent antibacterial and antiviral effects, and simultaneously the wear resistance and strength of the UHMWPE fiber can be improved.

4. In the invention, the antibacterial and antiviral UHMWPE fiber and the flax fiber are adopted as raw materials in the step S4, so that the multifunctional summer sleeping mat with ventilation, antibacterial, antiviral, moisture absorption, sweat release and the like can be manufactured.

5. The invention utilizes the excellent functionality of antibacterial and antiviral powder and the characteristics of high strength, wear resistance, cool feeling, water washing resistance and the like of UHMWPE, combines with the fabric tissue design to prepare the high-end summer sleeping mat with the characteristics of antibacterial, antiviral, ventilation, cooling, high strength, wear resistance and the like, and has extremely important application prospect.

Drawings

FIG. 1 is a photograph of the antibacterial and antiviral mat material prepared in example 1.

Detailed Description

Examples

Example 1

Example 1 provides an antibacterial and antiviral summer sleeping mat fabric, as shown in fig. 1, and the preparation method comprises the following steps:

S4: the antibacterial and antiviral summer sleeping mat fabric is prepared from antibacterial and antiviral UHMWPE fibers and flax fibers serving as raw materials by adopting a primary tissue, a change tissue, a joint tissue or a warp and double tissue serving as a basic tissue on a dorl loom.

In the mixture, the UHMWPE accounts for 98 percent by weight, the antibacterial and antiviral powder accounts for 1.8 percent by weight, and the dispersant accounts for the balance.

The UHMWPE has an average molecular weight of 200-500 ten thousand.

The UHMWPE was purchased from 040 manufactured by korean oil chemical industry co.

The antibacterial and antiviral powder comprises antibacterial powder and antiviral powder.

The weight ratio of the antibacterial powder to the antiviral powder is 1:3.

The antibacterial powder is zinc oxide.

The zinc oxide was purchased from zinc oxide jh-2103 manufactured by SANITIZED, switzerland.

The antiviral powder is graphene.

The particle size of the graphene is 10nm.

The graphene was purchased from guangzhou gold sea technologies limited.

The particle size of the dispersant is 0.5mm, and the viscosity at 150 ℃ is less than 1000 mPa.s.

The dispersant was purchased from dispersant p122 produced by a winning group.

The premixing in the step S1 comprises the following specific steps: premixing is performed under high shear.

The speed of the premixing is 2000r/min.

The solvent is white oil.

The white oil is purchased from Jiangsu Ben Petroleum technology Co., ltd.

The mass concentration of UHMWPE in the UHMWPE spinning dope in step S2 was 7wt%.

The parameters of the ultrasonic wave in step S2 are: the frequency F is 20kHz and the power density p is 0.3w/cm ² 。

And in the step S2, the stirring speed of the emulsifying machine is 2500r/min, and the stirring time is 4h.

The spinning method in the step S3 is gel spinning method.

The number of the flax fibers is 18tex.

The flax fibers were purchased from Yixing City, shunchang flax textile Co., ltd.

The specific implementation manner of the step S4 is as follows:

M2, technological parameter formulation: the linear density of the antibacterial and antiviral UHMWPE fiber is 800D, and the linear density of the flax fiber blended yarn is 800D; the arrangement ratio of the surface warp yarns to the inner warp yarns is 1:1, a step of; the warp density of the fabric is 18 pieces/cm, and the weft density is 9 pieces/cm.

M3, preparing a fabric: on a dorl loom, an antibacterial and antiviral summer sleeping mat fabric is manufactured by adopting a double-shaft weaving method.

Example 2

Example 2 provides an antibacterial and antiviral summer sleeping mat fabric, and specific implementation mode is the same as example 1. The difference is that:

in the mixture, the UHMWPE accounts for 97 percent by weight, the antibacterial and antiviral powder accounts for 2.5 percent by weight, and the dispersant accounts for the balance.

The weight ratio of the antibacterial powder to the antiviral powder is 1:19.

the pre-mixing rate was 1500r/min.

The solvent is paraffin oil.

The paraffin oil has an average molecular weight of 800-1500 and a softening point of 90-120 ℃.

The paraffin oil was purchased from chlorinated paraffin 70# manufactured by guangzhou Yuan chemical engineering Co.

The mass concentration of UHMWPE in the UHMWPE spinning dope in step S2 was 6wt%.

And in the step S2, the stirring speed of the emulsifying machine is 1000r/min, and the stirring time is 2h.

The specific implementation manner of the step S4 is as follows:

Example 3

Example 3 provides an antibacterial and antiviral summer sleeping mat fabric, and a specific embodiment is the same as example 1. The difference is that:

in the mixture, the UHMWPE accounts for 98.5 percent by weight, the antibacterial and antiviral powder accounts for 1 percent by weight, and the dispersing agent accounts for the balance.

The weight ratio of the antibacterial powder to the antiviral powder is 9:11.

the speed of the premixing is 3000r/min.

The solvent is decalin.

The CAS number of the decalin is 91-17-8.

The mass concentration of UHMWPE in the UHMWPE spinning dope in step S2 was 9wt%.

And in the step S2, the stirring speed of the emulsifying machine is 3500r/min, and the stirring time is 5h.

The number of the flax fibers is 20tex.

The specific implementation manner of the step S4 is as follows:

Example 4

Example 4 provides an antibacterial and antiviral summer sleeping mat fabric, and a specific embodiment is the same as example 1. The difference is that:

flax fibers are not used in step S4.

Example 5

Example 5 provides an antibacterial and antiviral summer sleeping mat fabric, and a specific embodiment is the same as example 1. The difference is that:

the UHMWPE has an average molecular weight of 700 ten thousand.

The UHMWPE was purchased from U070 manufactured by korean oil chemical industry co.

Example 6

Example 6 provides an antibacterial and antiviral summer sleeping mat fabric, and a specific embodiment is the same as example 1. The difference is that:

in the mixture, the UHMWPE accounts for 99.5 percent by weight, the antibacterial and antiviral powder accounts for 0.3 percent by weight, and the dispersant accounts for the balance.

Example 7

Example 7 provides an antibacterial and antiviral summer sleeping mat fabric, and a specific embodiment is the same as example 1. The difference is that:

the parameters of the ultrasonic wave in step S2 are: the frequency F is 15kHz and the power density p is 0.3w/cm ² 。

And in the step S2, the stirring speed of the emulsifying machine is 3000r/min, and the stirring time is 6h.

Example 8

Example 8 provides an antibacterial and antiviral summer sleeping mat fabric, and a specific embodiment is the same as example 1. The difference is that:

the weight ratio of the antibacterial powder to the antiviral powder is 1:20.

Performance testing

1. Antibacterial property test

The antibacterial and antiviral summer sleeping mat fabrics prepared in the examples 1-8 are evaluated according to the evaluation part 3 of the antibacterial performance of the textile in GB/T20944.3-2008: the mat was tested for its antimicrobial properties by the shaking method and the antimicrobial properties against E.coli and Staphylococcus aureus were recorded and the results are reported in Table 1.

2. Antiviral Performance test

The antibacterial and antiviral mat fabrics prepared in examples 1 to 8 were tested for anti-influenza a virus H3N2 virus activity according to ISO 18184:2014 (E) standard, and the results are reported in table 1.

3. Water-absorbing wear resistance test

The antibacterial and antiviral mat fabrics prepared in examples 1 to 8 were tested for water absorption and abrasion resistance according to GB/T21655.1-2008 and GB/T21196.2-2007 standards, and the results are recorded in Table 1.

TABLE 1

Claims

1. The preparation method of the antibacterial and antiviral summer sleeping mat fabric is characterized by comprising the following steps of:

s1: premixing antibacterial and antiviral powder, a dispersing agent and UHMWPE to prepare a mixture;

s2: adding the mixture into a solvent, and uniformly mixing under the combined action of ultrasonic wave and high-speed shearing of an emulsifying machine to obtain UHMWPE spinning stock solution;

s3: spinning, extracting and thermally drawing the spinning solution obtained in the step S2 by adopting a gel spinning process to obtain antibacterial and antiviral UHMWPE fibers;

2. The method for preparing the antibacterial and antiviral summer sleeping mat fabric of claim 1, wherein the weight percentage of the UHMWPE in the mixture is 90-99.4%, the weight percentage of the antibacterial and antiviral powder is 0.5-10%, and the balance is dispersant.

3. The method for producing an antibacterial and antiviral mat material according to claim 2, wherein the UHMWPE has an average molecular weight of 200 to 500 ten thousand.

4. The method of making an antimicrobial and antiviral mat facer of claim 2, wherein the antimicrobial and antiviral powder comprises an antimicrobial powder and an antiviral powder; the weight ratio of the antibacterial powder to the antiviral powder is (1-9): (11-19).

5. The method of making an antimicrobial and antiviral mat material of claim 4 wherein said antimicrobial powder comprises one or more of zinc oxide and nano silver.

6. The method of making an antimicrobial and antiviral mat material of claim 4 wherein said antiviral powder comprises graphene.

7. The method for producing an antibacterial and antiviral mat fabric according to any one of claims 1 to 6, wherein the weight ratio of UHMWPE to antibacterial and antiviral powder is (20 to 100): 1.

8. the method for preparing the antibacterial and antiviral summer sleeping mat fabric as claimed in claim 1, wherein the mass concentration of the UHMWPE in the UHMWPE spinning solution in the step S2 is 6-9wt%.

9. The method for preparing an antibacterial and antiviral mat fabric according to claim 7, wherein the parameters of the ultrasonic waves in the step S2 are: the frequency F is more than or equal to 20kHz, the power density p is more than or equal to 0.3w/cm ² The method comprises the steps of carrying out a first treatment on the surface of the And in the step S2, the stirring speed of the emulsifying machine is 1000-3500r/min, and the stirring time is 2-5h.

10. An antibacterial and antiviral summer sleeping mat fabric prepared by the method for preparing the antibacterial and antiviral summer sleeping mat fabric according to any one of claims 1-9.