Multifunctional composite filling layer, preparation method and odorless palm mattress

Abstract

The invention belongs to the technical field of textiles, and discloses a multifunctional composite filling layer, a preparation method and an odorless palm mattress. The multifunctional composite filling layer comprises a natural bamboo fiber layer, a rebound layer is arranged on the upper surface of the natural bamboo fiber layer, a functional layer is arranged on the lower surface of the natural bamboo fiber layer, raw materials of the rebound layer comprise polyester fibers, palm fibers, ES fibers and tea fibers, and raw materials of the functional layer comprise unsaturated polyester resin, a photoinitiator and modified functional filler. The preparation method comprises the following steps: dissolving a silane coupling agent in a solvent, then adding short carbon fibers, and carrying out ultrasonic dispersion to prepare a dispersion liquid; adding an inorganic nano antibacterial agent into the dispersion liquid, and carrying out ultrasonic dispersion to prepare a mixed liquid; dissolving a fluorocarbon surfactant in a solvent, then adding into the mixed solution, stirring, separating and collecting solids, and drying to obtain the modified functional filler. The multifunctional composite filling layer provided by the invention has excellent antibacterial property, peculiar smell removal property, air permeability, supporting property, durability and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of textiles, and in particular relates to a multifunctional composite filling layer, a preparation method and an odor-free palm mattress. Background Art

[0002] There are many kinds of mattresses on the market, mainly spring mattresses, sponge mattresses, etc. Different mattress materials have different effects. The structure of a mattress is mainly composed of three layers: fabric layer, filling layer and support layer. The filling layer is an important part that determines the hardness and comfort of the mattress. The filling layer can be divided into soft filling and hard filling. Soft filling mainly includes sponge, latex, etc. Sponge is prone to airtightness and easy to breed bacteria; although latex has high elasticity and good comfort, it is relatively expensive and easy to oxidize, and often needs to be added with antioxidants. Hard filling mainly includes coconut palm, jute, bamboo charcoal palm, etc. These are all natural materials and relatively cheap, but they are high in hardness and poor in comfort. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the above-mentioned prior art. To this end, the present invention provides a multifunctional composite filling layer, a preparation method and a deodorizing palm mattress, wherein the multifunctional composite filling layer has excellent antibacterial and deodorizing properties, air permeability, support and durability.

[0004] A first aspect of the present invention provides a multifunctional composite filling layer, the multifunctional composite filling layer comprises a bamboo fiber layer, a resilience layer is arranged on the upper surface of the bamboo fiber layer, a functional layer is arranged on the lower surface of the bamboo fiber layer, the raw material of the resilience layer comprises polyester fiber, palm fiber, ES fiber and tea fiber, and the raw material of the functional layer comprises unsaturated polyester resin, photoinitiator and modified functional filler;

[0005] The modified functional filler is prepared by a preparation method comprising the following steps:

[0006] The silane coupling agent is dissolved in a solvent, short-cut carbon fibers are added, and ultrasonic dispersion is performed to obtain a dispersion liquid;

[0007] Adding the inorganic nano antibacterial agent into the dispersion liquid, and performing ultrasonic dispersion to obtain a mixed liquid;

[0008] The fluorocarbon surfactant is dissolved in a solvent, and then added into the mixed solution, stirred, and solid matter is separated and collected, and dried to obtain a modified functional filler.

[0009] Specifically, the chopped carbon fibers are added to the silane coupling agent and ultrasonically dispersed to improve the coating efficiency of the silane coupling agent, and then the inorganic nano antibacterial agent is added to the dispersion containing the silane coupling agent and the chopped carbon fibers to prevent the inorganic nano antibacterial agent from agglomerating. The inorganic nano antibacterial agent can be evenly distributed in the gaps between the chopped carbon fibers, thereby improving the stability and activity of the inorganic nano antibacterial agent, and the silane coupling agent forms a first layer of adsorption on the surfaces of the chopped carbon fibers and the inorganic nano antibacterial agent; then a fluorocarbon surfactant is added, and when the fluorocarbon surfactant reaches a certain concentration, a sol / micelle is formed, and the filler is dispersed again under stirring, and a fluorocarbon molecular film is attached, and the fluorocarbon surfactant forms a second layer of adsorption on the surfaces of the chopped carbon fibers and the inorganic nano antibacterial agent, thereby improving the interface bonding performance between the modified functional filler and the unsaturated polyester resin.

[0010] Specifically, unsaturated polyester resin is used as a photocuring agent. The unsaturated polyester resin is formed by condensation of unsaturated dibasic acid and diol, or saturated dibasic acid and unsaturated diol. It is a linear polymer compound with ester bonds and unsaturated double bonds. Under the action of a photoinitiator, it has good bonding properties with the surface of the bamboo fiber layer after photocuring, so that the functional components (chopped carbon fibers, inorganic nano-antibacterial agents) added to the unsaturated polyester resin can also be durably attached to the surface of the bamboo fiber layer, thereby achieving lasting antibacterial and odor removal effects.

[0011] In some embodiments of the present invention, the ultrasonic power of the ultrasonic dispersion is 550-650 W, and the ultrasonic time is 30-60 min.

[0012] In some embodiments of the present invention, the stirring speed is 500-800 r / min, and the stirring time is 40-60 min.

[0013] In some embodiments of the present invention, the raw materials of the resilience layer include 80-100 parts of polyester fiber, 20-30 parts of palm fiber, 20-30 parts of ES fiber and 30-40 parts of tea fiber, by weight.

[0014] Specifically, tea fiber is a regenerated cellulose fiber, which is an antibacterial fiber that is drawn from a pulp by a blending reaction between tea polyphenols and wood pulp. Tea polyphenols is a general term for polyphenols in tea, which is composed of more than 30 kinds of phenolic substances. Its main components are catechins and their derivatives, which are the main chemical components in tea with antibacterial and antioxidant functions. In tea fiber, the above-mentioned components that play antibacterial and antioxidant roles are stably present on the fiber, and their antibacterial and antioxidant effects are not easily dissipated by washing, and have the characteristics of long-lasting antibacterial and antioxidant effects; in addition, tea fiber works together with the inorganic nano-antibacterial agent in the functional layer to fight bacteria through different mechanisms, significantly improving the antibacterial effect.

[0015] Furthermore, the present invention can control the content of tea polyphenols at an appropriate concentration by matching the amount of the above-mentioned tea fiber, etc., and the resilience layer at the appropriate concentration has good antibacterial and antioxidant effects. If the content exceeds the limit of the present invention, the antibacterial effect will be affected. If the tea fiber content is less than 30 parts, the antibacterial effect will be significantly reduced; if the tea fiber content is greater than 40 parts, the antibacterial effect will not only not be significantly improved, but may affect the resilience and support performance of the resilience layer, while increasing the cost.

[0016] In some embodiments of the present invention, the raw materials of the functional layer include 80-100 parts of unsaturated polyester resin, 5-10 parts of photoinitiator and 8-12 parts of modified functional filler in parts by weight.

[0017] Specifically, the present invention combines the modified functional fillers and other amounts, and the functional layer has good antibacterial and odor removal effects when the amount is appropriately matched. If the content exceeds the limit of the present invention, the above effects will be affected. If the content of the modified functional filler is less than 8 parts, the antibacterial and odor removal effects will be significantly reduced; if the content of the modified functional filler is greater than 12 parts, the antibacterial and odor removal effects will not only not be significantly improved, but may affect the air permeability and the bonding strength between the functional layer and the bamboo fiber layer, while increasing the cost.

[0018] In some embodiments of the present invention, the photoinitiator includes at least one of benzophenone, 2-hydroxy-2-methyl-1-phenyl-1-propanone and 1-hydroxycyclohexyl phenyl ketone.

[0019] In some embodiments of the present invention, the mass ratio of the chopped carbon fiber, the inorganic nano-antibacterial agent, the silane coupling agent, the fluorocarbon surfactant and the solvent is (10-15):(1-5):(0.5-2):(1-3):100.

[0020] In some embodiments of the present invention, the diameter of the chopped carbon fibers is 20-40 μm.

[0021] In some embodiments of the present invention, the length of the chopped carbon fibers is 50-150 μm.

[0022] In some embodiments of the present invention, the inorganic nano antibacterial agent includes at least one of nano zinc oxide, nano silver oxide, nano titanium dioxide and nano copper oxide.

[0023] Furthermore, the inorganic nano-antibacterial agent contains nano-titanium dioxide, and the nano-titanium dioxide is preferably anatase titanium dioxide; when the mattress is aired under light, anatase titanium dioxide can effectively remove harmful substances such as formaldehyde; at the same time, anatase titanium dioxide has a strong ultraviolet light absorption ability, forming excited electrons and holes, causing the DNA molecules in the bacteria to break, thereby improving the antibacterial effect.

[0024] In some embodiments of the present invention, the particle size of the inorganic nano antibacterial agent is 50-150 nm.

[0025] In some embodiments of the present invention, the silane coupling agent includes at least one of silane coupling agents KH-550, KH-560 and KH-570.

[0026] In some embodiments of the present invention, the fluorocarbon surfactant includes at least one of the fluorocarbon surfactants TF-281, TF-310 and FC-4430.

[0027] In some embodiments of the present invention, the mass ratio of the resilience layer to the bamboo fiber layer is 10:(1-5).

[0028] The second aspect of the present invention provides a method for preparing the multifunctional composite filling layer according to the first aspect of the present invention, comprising the following steps:

[0029] After polyester fiber, palm fiber, ES fiber and tea fiber are loosened separately, mixed, combed, laid and thermally bonded to form a resilience layer;

[0030] The resilience layer is placed on the upper surface of the bamboo fiber layer and compounded by needle punching process;

[0031] Unsaturated polyester resin, photoinitiator and modified functional filler are mixed to obtain a functional mixture, which is then sprayed on the lower surface of the bamboo fiber layer and photocured to form a functional layer to obtain a multifunctional composite filling layer.

[0032] Specifically, when the modified functional filler is mixed with the unsaturated polyester resin, the modified functional filler can provide interfacial wettability with extremely low surface tension, the modified functional filler and the unsaturated polyester resin have high interfacial compatibility and low surface binding energy, the modified functional filler and the unsaturated polyester resin can be well compatible and mixed, and at the same time, the micro-nanoparticles in the modified functional filler can enhance the unsaturated polyester resin by binding between molecular chains, effectively preventing wear and peeling, and improving antibacterial and odor removal and durability.

[0033] In some embodiments of the present invention, the spraying amount of the functional mixture is 100-200 g / m 2Controlling the appropriate spraying amount can improve the antibacterial and deodorizing effects of the bamboo fiber layer without affecting the air permeability of the bamboo fiber layer; if the spraying amount is greater than 200g / m 2 It will affect the breathability and increase the cost.

[0034] In some embodiments of the present invention, the photocuring is performed by irradiating ultraviolet light.

[0035] In some embodiments of the present invention, the photocuring time is 10-30 minutes.

[0036] The third aspect of the present invention provides an odor-free palm mattress, wherein the odor-free palm mattress comprises the multifunctional composite filling layer described in the first aspect of the present invention.

[0037] In some embodiments of the present invention, the odor-free palm mattress further includes a fabric layer and a support layer, the rebound layer is close to the fabric layer, and the functional layer is close to the support layer.

[0038] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0039] The multifunctional composite filling layer provided by the present invention utilizes polyester fiber with good resilience and harder palm fiber, so that the elasticity is more stable, the support is better, and good comfort can be provided, and at the same time the tea fiber provides good antibacterial performance; the functional layer formed by light curing is firmly combined with the bamboo fiber layer, and the modified functional filler therein can be durably and evenly attached to the surface of the bamboo fiber layer, the inorganic nano antibacterial agent and the tea fiber work together to improve the antibacterial effect, and the carbon fiber can absorb and remove odor while improving the corrosion resistance and mechanical properties (including strength, wear resistance, etc.) of the bamboo fiber, reducing wear, improving durability, and effectively extending the service life of the multifunctional composite filling layer. DETAILED DESCRIPTION

[0040] In order to make the technical scheme of the present invention more clearly understood by those skilled in the art, the following embodiments are listed for illustration. It should be pointed out that the following embodiments do not limit the protection scope of the present invention.

[0041] Unless otherwise specified, the raw material components, reagents or devices used in the present invention can be obtained from conventional commercial channels or by existing known methods.

[0042] Example 1

[0043] A multifunctional composite filling layer comprises a bamboo fiber layer, a resilience layer is arranged on the upper surface of the bamboo fiber layer, and a functional layer is arranged on the lower surface of the bamboo fiber layer;

[0044] The resilience layer includes the following raw materials in parts by weight: 80 parts of polyester fiber, 30 parts of palm fiber, 20 parts of ES fiber and 40 parts of tea fiber;

[0045] The functional layer includes the following raw materials in parts by weight: 80 parts of unsaturated polyester resin, 10 parts of photoinitiator and 8 parts of modified functional filler, wherein the photoinitiator is 2-hydroxy-2-methyl-1-phenyl-1-propanone;

[0046] The modified functional filler is prepared from chopped carbon fiber, inorganic nano-antibacterial agent, silane coupling agent, fluorocarbon surfactant and solvent in a mass ratio of 12:3:1:2:100; wherein the diameter of the chopped carbon fiber is 30 μm and the length is 100 μm; the particle size of the inorganic nano-antibacterial agent is 100 nm, and the inorganic nano-antibacterial agent is a mixture of nano-titanium dioxide and nano-zinc oxide in a mass ratio of 1:5; the silane coupling agent is KH-550, the fluorocarbon surfactant is TF-281, and the solvent is anhydrous ethanol.

[0047] The preparation method of the modified functional filler in this example comprises the following steps:

[0048] (1) dissolving KH-550 silane coupling agent in a portion of anhydrous ethanol, adding chopped carbon fibers, and ultrasonically dispersing at 600 W for 40 min to obtain a dispersion;

[0049] (2) adding the inorganic nano antibacterial agent to the dispersion, and dispersing it ultrasonically at 600 W for 40 min to obtain a mixed solution;

[0050] (3) Dissolve TF-281 fluorocarbon surfactant in the remaining anhydrous ethanol, add it to the mixed solution while stirring, stir at 600 r / min for 60 min, separate and collect the solid, and dry the solid at 100° C. to obtain a modified functional filler.

[0051] The method for preparing the multifunctional composite filling layer in this example comprises the following steps:

[0052] (1) After polyester fiber, palm fiber, ES fiber and tea fiber are loosened respectively, mixed, combed, laid and thermally bonded to form a resilience layer;

[0053] (2) placing the resilience layer on the upper surface of the bamboo fiber layer and compounding it using a conventional needle punching process;

[0054] (3) Unsaturated polyester resin, photoinitiator and modified functional filler are mixed to obtain a functional mixture, and the functional mixture is sprayed on the lower surface of the bamboo fiber layer (the spraying amount is 150 g / m 2 ), and then irradiating the sprayed film layer with ultraviolet light for 15 minutes to form a functional layer to obtain a multifunctional composite filling layer.

[0055] Example 2

[0056] A multifunctional composite filling layer comprises a bamboo fiber layer, a resilience layer is arranged on the upper surface of the bamboo fiber layer, and a functional layer is arranged on the lower surface of the bamboo fiber layer;

[0057] The resilience layer comprises the following raw materials in parts by weight: 100 parts of polyester fiber, 20 parts of palm fiber, 30 parts of ES fiber and 30 parts of tea fiber;

[0058] The functional layer includes the following raw materials in parts by weight: 100 parts of unsaturated polyester resin, 5 parts of photoinitiator and 12 parts of modified functional filler, wherein the photoinitiator is 2-hydroxy-2-methyl-1-phenyl-1-propanone;

[0059] The modified functional filler is prepared from chopped carbon fiber, inorganic nano-antibacterial agent, silane coupling agent, fluorocarbon surfactant and solvent in a mass ratio of 10:1:0.5:1:100; wherein the diameter of the chopped carbon fiber is 20 μm and the length is 50 μm; the particle size of the inorganic nano-antibacterial agent is 50 nm, and the inorganic nano-antibacterial agent is a mixture of nano-titanium dioxide and nano-silver oxide in a mass ratio of 1:8; the silane coupling agent is KH-550, the fluorocarbon surfactant is TF-281, and the solvent is anhydrous ethanol.

[0060] The preparation method of the modified functional filler in this example comprises the following steps:

[0061] (1) dissolving KH-550 silane coupling agent in a portion of anhydrous ethanol, adding chopped carbon fibers, and ultrasonically dispersing at 550 W for 30 min to obtain a dispersion;

[0062] (2) adding the inorganic nano antibacterial agent to the dispersion, and dispersing it ultrasonically at 550 W for 30 min to obtain a mixed solution;

[0063] (3) Dissolve TF-281 fluorocarbon surfactant in the remaining anhydrous ethanol, add it to the mixed solution while stirring, stir at 500 r / min for 40 min, separate and collect the solid, and dry the solid at 80° C. to obtain a modified functional filler.

[0064] The method for preparing the multifunctional composite filling layer in this example comprises the following steps:

[0065] (1) After polyester fiber, palm fiber, ES fiber and tea fiber are loosened respectively, mixed, combed, laid and thermally bonded to form a resilience layer;

[0066] (2) placing the resilience layer on the upper surface of the bamboo fiber layer and compounding it using a conventional needle punching process;

[0067] (3) Unsaturated polyester resin, photoinitiator and modified functional filler are mixed to obtain a functional mixture, and the functional mixture is sprayed on the lower surface of the bamboo fiber layer (the spraying amount is 100 g / m 2 ), and then irradiating the sprayed film layer with ultraviolet light for 10 minutes to form a functional layer to obtain a multifunctional composite filling layer.

[0068] Example 3

[0069] A multifunctional composite filling layer comprises a bamboo fiber layer, a resilience layer is arranged on the upper surface of the bamboo fiber layer, and a functional layer is arranged on the lower surface of the bamboo fiber layer;

[0070] The resilience layer comprises the following raw materials in parts by weight: 90 parts of polyester fiber, 25 parts of palm fiber, 25 parts of ES fiber and 35 parts of tea fiber;

[0071] The functional layer includes the following raw materials in parts by weight: 90 parts of unsaturated polyester resin, 8 parts of photoinitiator and 10 parts of modified functional filler, wherein the photoinitiator is 2-hydroxy-2-methyl-1-phenyl-1-propanone;

[0072] The modified functional filler is prepared from chopped carbon fiber, inorganic nano-antibacterial agent, silane coupling agent, fluorocarbon surfactant and solvent in a mass ratio of 15:5:2:3:100; wherein the diameter of the chopped carbon fiber is 40 μm and the length is 150 μm; the particle size of the inorganic nano-antibacterial agent is 150 nm, and the inorganic nano-antibacterial agent is a mixture of nano-titanium dioxide and nano-zinc oxide in a mass ratio of 1:10; the silane coupling agent is KH-550, the fluorocarbon surfactant is TF-281, and the solvent is anhydrous ethanol.

[0073] The preparation method of the modified functional filler in this example comprises the following steps:

[0074] (1) dissolving KH-550 silane coupling agent in a portion of anhydrous ethanol, adding chopped carbon fibers, and ultrasonically dispersing at 650 W for 60 min to obtain a dispersion;

[0075] (2) adding the inorganic nano antibacterial agent to the dispersion, and dispersing it ultrasonically at 650 W for 60 min to obtain a mixed solution;

[0076] (3) Dissolve TF-281 fluorocarbon surfactant in the remaining anhydrous ethanol, add it to the mixed solution while stirring, stir at 800 r / min for 60 min, separate and collect the solid, and dry the solid at 100° C. to obtain a modified functional filler.

[0077] The method for preparing the multifunctional composite filling layer in this example comprises the following steps:

[0078] (1) After polyester fiber, palm fiber, ES fiber and tea fiber are loosened respectively, mixed, combed, laid and thermally bonded to form a resilience layer;

[0079] (2) placing the resilience layer on the upper surface of the bamboo fiber layer and compounding it using a conventional needle punching process;

[0080] (3) Unsaturated polyester resin, photoinitiator and modified functional filler are mixed to obtain a functional mixture, and the functional mixture is sprayed on the lower surface of the bamboo fiber layer (the spraying amount is 150 g / m 2 ), and then irradiating the sprayed film layer with ultraviolet light for 30 minutes to form a functional layer to obtain a multifunctional composite filling layer.

[0081] Comparative Example 1

[0082] The only difference from Example 3 is that the resilience layer of Comparative Example 1 does not contain palm fiber.

[0083] Comparative Example 2

[0084] The only difference from Example 3 is that the resilience layer of Comparative Example 2 does not contain tea fibers.

[0085] Comparative Example 3

[0086] The only difference from Example 3 is that the functional layer of Comparative Example 3 does not contain modified functional filler.

[0087] Comparative Example 4

[0088] The only difference from Example 3 is that the functional layer of Comparative Example 4 contains chopped carbon fibers and inorganic nano antibacterial agents that are not modified with silane coupling agents and fluorocarbon surfactants.

[0089] Performance Testing

[0090] The filling layers prepared in the above Examples 1-3 and Comparative Examples 1-4 were made into samples with a specification of 20*20*10 cm, and the following tests were performed respectively:

[0091] Hardness: GS-701N hardness tester was used for testing. Each sample was placed at room temperature (25°C) for 24 hours before testing the hardness.

[0092] Resilience: The test was conducted in accordance with the test standard GB / T 10652-2001. The different parts of each sample were measured 10 times, and the average value was calculated as the final rebound rate of the test sample.

[0093] Compression set: Tested in accordance with the test standard GB / T 6669-2008, compression set test parameters (temperature 70°C, time 22h, compression ratio 50%);

[0094] Air permeability: Test according to the test standard GB / T 5453-1997, repeat the measurement 10 times on different parts of each sample, and calculate the average value as the final air permeability of the test sample;

[0095] Antibacterial property: tested in accordance with the test standard GB / T 20944.3-2008, test bacteria Staphylococcus aureus (washing standard GB / T 8629-2017);

[0096] The performance test results are shown in Table 1.

[0097] Table 1

[0098]

[0099] It can be seen from the test results in Table 1 above that the comprehensive performance of the multifunctional composite filling layers prepared in Examples 1-3 of the present application is significantly better than that of the filling layers prepared in Comparative Examples 1-4.

[0100] Specifically, Comparative Example 1 lacks palm fiber, the hardness is reduced, the resilience and shape retention are reduced, and the comfort is poor; Comparative Example 2 lacks tea fiber, and the antibacterial effect is poor, indicating that the present invention uses tea fiber in combination with an inorganic nano-antibacterial agent to significantly improve the antibacterial effect; Comparative Example 3 lacks modified functional fillers, the antibacterial effect is poor, and the mechanical properties are also adversely affected; the filler (chopped carbon fiber and inorganic nano-antibacterial agent) of Comparative Example 4 is not modified and is easy to agglomerate, resulting in a decrease in comprehensive performance.

[0101] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A multifunctional composite filling layer, characterized in that: The multifunctional composite filling layer comprises a bamboo fiber layer, a resilient layer is arranged on the upper surface of the bamboo fiber layer, a functional layer is arranged on the lower surface of the bamboo fiber layer, the raw materials of the resilient layer comprise polyester fiber, palm fiber, ES fiber and tea fiber, and the raw materials of the functional layer comprise unsaturated polyester resin, photoinitiator and modified functional filler; The modified functional filler is prepared by a preparation method comprising the following steps: The silane coupling agent is dissolved in a solvent, short-cut carbon fibers are added, and ultrasonic dispersion is performed to obtain a dispersion liquid; Adding the inorganic nano antibacterial agent into the dispersion liquid, and performing ultrasonic dispersion to obtain a mixed liquid; The fluorocarbon surfactant is dissolved in a solvent, and then added into the mixed solution, stirred, and solid matter is separated and collected, and dried to obtain a modified functional filler.

2. The multifunctional composite filling layer according to claim 1, characterized in that: In parts by weight, the raw materials of the resilience layer include 80-100 parts of polyester fiber, 20-30 parts of palm fiber, 20-30 parts of ES fiber and 30-40 parts of tea fiber.

3. The multifunctional composite filling layer according to claim 1, characterized in that: In parts by weight, the raw materials of the functional layer include 80-100 parts of unsaturated polyester resin, 5-10 parts of photoinitiator and 8-12 parts of modified functional filler.

4. The multifunctional composite filling layer according to claim 1, characterized in that: The mass ratio of the chopped carbon fiber, the inorganic nano antibacterial agent, the silane coupling agent, the fluorocarbon surfactant and the solvent is (10-15):(1-5):(0.5-2):(1-3):

100.

5. The multifunctional composite filling layer according to claim 1, characterized in that: The diameter of the chopped carbon fibers is 20-40 μm; and / or the length of the chopped carbon fibers is 50-150 μm.

6. The multifunctional composite filling layer according to claim 1, characterized in that: The inorganic nano antibacterial agent comprises at least one of nano zinc oxide, nano silver oxide, nano titanium dioxide and nano copper oxide; and / or the particle size of the inorganic nano antibacterial agent is 50-150 nm.

7. The method for preparing the multifunctional composite filling layer according to any one of claims 1 to 6, characterized in that: The following steps are involved: After polyester fiber, palm fiber, ES fiber and tea fiber are loosened separately, mixed, combed, laid and thermally bonded to form a resilience layer; The resilience layer is placed on the upper surface of the bamboo fiber layer and compounded by needle punching process; Unsaturated polyester resin, photoinitiator and modified functional filler are mixed to obtain a functional mixture, which is then sprayed on the lower surface of the bamboo fiber layer and photocured to form a functional layer to obtain a multifunctional composite filling layer.

8. The preparation method according to claim 7, characterized in that: The spraying amount of the functional mixture is 100-200g / m 2 .

9. The preparation method according to claim 7, characterized in that: The photocuring is performed by irradiating ultraviolet light; and / or the photocuring time is 10-30 minutes.

10. A deodorizing palm mattress, characterized in that: The odor-free palm mattress comprises the multifunctional composite filling layer as described in any one of claims 1-6.

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