Sheet-base composite material and preparation method and application thereof

Abstract

The invention provides a sheet-base composite material as well as a preparation method and application thereof, and relates to the technical field of composite materials. The invention provides a sheet-base composite material. The sheet-base composite material comprises a base and a sheet fixed on the base, the base is prepared through extrusion molding; the sheet comprises a bristle part and a chain weaving part for fixing the bristle part; the bristle part comprises arranged fiber bundles; the sheet material comprises a low-fuse wire; and the melting point of the low-fuse wire is 80-110 DEG C. The sheet-base composite material provided by the invention does not slip hair in the use process, the preparation process is simple, and the production cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of composite materials, and particularly relates to a sheet-base composite material, a preparation method thereof, and an application thereof. Background Art

[0002] Today, with the rapid development of technology, vacuum cleaners have become essential tools for household cleaning. Usually, a rotatable brush is provided at the suction inlet of the vacuum cleaner, and the brush is used to scrape or suck the dust on the ground, but the conventional brush is prone to shedding during operation. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a sheet-base composite material, a preparation method thereof, and an application thereof. The sheet-base composite material provided by the present invention will not shed hair during use, and the preparation process is simple, reducing the production cost.

[0004] In order to achieve the above-mentioned invention purpose, the present invention provides the following technical solutions:

[0005] The present invention provides a sheet-base composite material, including a base and a sheet fixed on the base; the base is prepared by extrusion molding;

[0006] The sheet includes a brush portion and a chain knitting portion for fixing the brush portion; the brush portion includes arranged fiber bundles;

[0007] The sheet includes a low-melting-point filament; the melting point of the low-melting-point filament is 80-110 °C.

[0008] Preferably, the material of the base includes nylon, polymethyl methacrylate, nylon polyamide, BASF S760, polyethylene or polypropylene.

[0009] Preferably, the conditions of the extrusion molding include:

[0010] The temperatures of the 1st to 6th zones of the main screw are 250 °C ± 50 °C, 250 °C ± 50 °C, 250 °C ± 50 °C, 245 °C ± 50 °C, 240 °C ± 50 °C and 220 °C ± 50 °C in sequence;

[0011] The rotational speed of the gear pump is 15-45 r / min; the traction vehicle speed is 5-15 m / min; the melt pressure is 1-10 MPa; the vacuum degree is -50 to -1 cmHg.

[0012] Preferably, the fineness of the low-melting-point filament is 100-300 D.

[0013] Preferably, the low-melting-point filament is doped in at least one of the brush portion and the chain knitting portion.

[0014] Preferably, the fiber bundles in the brush portion are U-shaped folded cross filaments.

[0015] Preferably, the raw materials of the fiber bundles in the bristle part include one or more of nylon filaments, polyester filaments and polypropylene filaments.

[0016] Preferably, the raw material of the chain knitting part includes fibers.

[0017] The present invention provides a method for preparing the sheet-base composite material described in the above technical solution, including the following steps:

[0018] The base is prepared by extrusion molding;

[0019] The sheet is fixed on the base and bonded to obtain the sheet-base composite material;

[0020] The sheet includes a bristle part and a chain knitting part for fixing the bristle part; the bristle part includes arranged fiber bundles;

[0021] The sheet includes a low-melting-point wire; the melting point of the low-melting-point wire is 80-110 °C.

[0022] The present invention provides the application of the sheet-base composite material described in the above technical solution or the sheet-base composite material prepared by the preparation method described in the above technical solution in cleaning products.

[0023] The present invention provides a sheet-base composite material, including a base and a sheet fixed on the base; the base is prepared by extrusion molding; the sheet includes a bristle part and a chain knitting part for fixing the bristle part; the bristle part includes arranged fiber bundles; the sheet includes a low-melting-point wire; the melting point of the low-melting-point wire is 80-110 °C. By adding the low-melting-point wire, the present invention can improve the adhesion between the fibers in the sheet and the bonding force between the sheet and the base. The sheet-base composite material provided by the present invention largely avoids the problem of fiber shedding during scraping. At the same time, compared with injection molding, the present invention prepares the base by extrusion molding, only one set of mold tooling needs to be provided, and it can be cut to any length in terms of length. The advantage of the extrusion process compared with other processes is that only one set of molds is required, which greatly reduces the cost and can meet the cutting of any length, and is extremely flexible in terms of length.

[0024] The tensile strength value of the sheet-base composite material provided by the present invention > 80 N, which is higher than that of conventional products (25-50 N). Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of the chain knitting part;

[0026] Figure 2 It is a physical diagram of the finished product of the sheet-base composite material;

[0027] Figure 3 Front view (A) and finished product length diagram (B) of the sheet-base composite material provided for Example 1;

[0028] Reference numerals: 1 is the chain knitting part, 2 is the brush hair part, and 3 is the base. Detailed implementation manners

[0029] The present invention provides a sheet-base composite material, including a base and a sheet fixed on the base; the base is prepared by extrusion molding;

[0030] The sheet includes a brush hair part and a chain knitting part for fixing the brush hair part; the brush hair part includes arranged fiber bundles;

[0031] The sheet includes a low melting point wire; the melting point of the low melting point wire is 80 - 110 °C.

[0032] Unless otherwise specified, the materials and equipment used in the present invention are all commercially available products in the art.

[0033] The sheet-base composite material provided by the present invention includes a base. In the present invention, the base is prepared by extrusion molding. In the present invention, the material of the base preferably includes nylon, polymethyl methacrylate (acrylic), nylon polyamide, BASF S760, polyethylene or polypropylene, and more preferably BASF S760. In the present invention, the color of the base is preferably achieved by adding color masterbatch to the material of the base, and the dosage and color of the color masterbatch can be set according to the needs of those skilled in the art. In the specific implementation manner of the present invention, the color masterbatch is specifically preferably black masterbatch. In the present invention, a recessed part is provided on the base, and the recessed part is used to embed the sheet.

[0034] In the present invention, the conditions of the extrusion molding preferably include: the temperatures of the 1st - 6th zones of the main screw are 250 °C ± 50 °C, 250 °C ± 50 °C, 250 °C ± 50 °C, 245 °C ± 50 °C, 240 °C ± 50 °C, and 220 °C ± 50 °C in sequence; the rotational speed of the gear pump is 15 - 45 r / min; the traction vehicle speed is 5 - 15 m / min; the melt pressure is 1 - 10 MPa; the vacuum degree is -50 - -1 cmHg. In the specific embodiments of the present invention, the temperatures of the 1st - 6th zones of the main screw can be 250 °C ± 3 °C, 250 °C ± 3 °C, 250 °C ± 3 °C, 245 °C ± 3 °C, 240 °C ± 3 °C, 220 °C ± 3 °C. In the specific embodiments of the present invention, the rotational speed of the gear pump can be 29.2 ± 1 r / min. In the specific embodiments of the present invention, the traction vehicle speed can be 9.5 ± 0.2 m / min. In the specific embodiments of the present invention, the melt pressure can be 2.5 ± 0.3 MPa. In the specific embodiments of the present invention, the vacuum degree can be -10 ± 2 cmHg.

[0035] The sheet-base composite material provided by the present invention includes a sheet fixed on the base; the sheet includes a bristle part and a chain knitting part for fixing the bristle part; the bristle part includes arranged fiber bundles.

[0036] In the present invention, the sheet includes a low-melting wire; the melting point of the low-melting wire is 80-110°C. In specific embodiments of the present invention, the melting point of the low-melting wire can be 85°C, 95°C, or 110°C. In the present invention, the fineness of the low-melting wire is preferably 100-300 D. In specific embodiments of the present invention, the fineness of the low-melting wire can be 100 D, 200 D, or 300 D. In the present invention, the low-melting wire is doped in at least one of the bristle part and the chain knitting part. In specific embodiments of the present invention, the raw material of the bristle part includes a low-melting wire, or the raw material of the chain knitting part includes a low-melting wire, or the raw materials of both the bristle part and the chain knitting part include a low-melting wire. In the present invention, the low-melting wire in the sheet can achieve adhesion and reinforcement between fiber bundles after melting. At the same time, it can also improve the bonding force between the sheet and the base, effectively improving the hair loss situation.

[0037] In the present invention, the fiber bundles in the bristle part are preferably U-shaped folded horizontal filaments. In the present invention, the raw material of the fiber bundles in the bristle part preferably includes one or more of nylon filaments, polyester filaments, and polypropylene filaments.

[0038] In the present invention, the chain knitting part is arranged at the base end of the bristle part, and its function is to restrain adjacent fiber bundles in the bristle part.

[0039] In the present invention, the raw material of the chain knitting part preferably includes fibers, specifically including one or more of polyester filaments, nylon filaments, and polypropylene filaments.

[0040] In the present invention, the specifications of the fibers (conventional fibers) in the bristle part and the chain knitting part preferably independently include: 100 D, 200 D, 300 D, 450 D, 30 / 3 ply, 40 / 3 ply, 1088 D / 64 F, 1050 D / 64 F, or 1300 D / 110 F.

[0041] In the present invention, when the low-melting wire is doped in the bristle part, the ratio of the conventional fiber to the low-melting wire in the bristle part can be arbitrary, preferably 1:1, that is, 1 conventional fiber + 1 low-melting wire. In the present invention, when the low-melting wire is doped in the chain knitting part, the ratio of the conventional fiber to the low-melting wire in the chain knitting part can be arbitrary, preferably 1:1, that is, 1 conventional fiber + 1 low-melting wire.

[0042] In the present invention, the preparation method of the sheet preferably includes: weaving a horizontal bristle tape with a horizontal bristle loom; cutting the horizontal threads of the horizontal bristle tape to obtain the sheet.

[0043] The present invention provides a method for preparing the sheet-base composite material described in the above technical solution, including the following steps:

[0044] The base is prepared by extrusion molding.

[0045] The sheet is fixed on the base and bonded to obtain the sheet-base composite material.

[0046] The sheet includes a bristle portion and a chain knitting portion for fixing the bristle portion; the bristle portion includes arranged fiber bundles.

[0047] The sheet includes a low melting point wire; the melting point of the low melting point wire is 80-110 °C.

[0048] In the present invention, the base is prepared by extrusion molding. In the present invention, the conditions of the extrusion molding are the same as those described above and will not be elaborated here.

[0049] After obtaining the base, in the present invention, the sheet is fixed on the base and bonded to obtain the sheet-base composite material.

[0050] In the present invention, the structure of the sheet is the same as that described above and will not be elaborated here.

[0051] In the present invention, the fixing is preferably to embed the sheet into the recessed portion of the base.

[0052] In the present invention, the bonding is preferably carried out in a bonding machine.

[0053] The present invention provides the application of the sheet-base composite material described in the above technical solution or the sheet-base composite material prepared by the preparation method described in the above technical solution in cleaning products, preferably applied to the field of cleaning appliances, specifically applied to vacuum cleaners. In the present invention, the sheet-base composite material is mainly used to remove or recover dust, specifically applied to the suction inlet of a vacuum cleaner.

[0054] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the embodiments in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0055] Example 1

[0056] Weaving process

[0057] The finished product is composed of a sheet and an extruded base. The process is mainly divided into two parts. The first process is the sheet and the extruded base; the second process is the combination of the sheet and the extruded base.

[0058] The first process: sheet, extruded base

[0059] (1) The sheet is composed of a brush part and a chain knitted part.

[0060] Brush part: The raw material is 1088D / 64F black and gray nylon filament, which is used as the fiber bundle of the U-shaped folded horizontal filament.

[0061] Chain knitted part: The raw materials are 1 piece of 300D black polyester ATY + 1 piece of 300D low melting point filament (melting point is 85°C).

[0062] The fiber is woven into a sheet by a crochet machine; the fiber bundle of the brush part is used as the horizontal line of the crochet machine. While folding the horizontal line left and right, a chain stitch is formed by the chain knitting thread to weave and bind the horizontal line. Its structure is as Figure 1 shown.

[0063] (2) Extruded base

[0064] The equipment used is an extruder, and the raw materials used are nylon: BASF S760 + 3% black masterbatch.

[0065] The extrusion parameters are: the temperature of the main screw in zones 1-6 is 250°C - 250°C - 250°C - 245°C - 240°C - 220°C (±3°C); the rotational speed of the gear pump is: 29.2 ± 1 r / min; the traction vehicle speed is 27.8 ± 2 RPM (9.5 m / min); the melt pressure is 2.5 ± 0.3 MPa; the vacuum degree is -10 ± 2 cmHg.

[0066] The second process: combination of the sheet and the extruded base

[0067] Place the sheet in the recessed part of the base, and through the action of the bonding machine, bond the base of the sheet to the base to form a finished product as Figure 2 shown.

[0068] The schematic diagram of the sheet-base composite material prepared in this embodiment is as Figure 3 shown, where A is the front view and B is the length diagram of the finished product. Figure 3 The unit of the dimension in

[0069] The tensile value of the sheet-base composite material prepared in this embodiment is measured by a tensile machine. The result is: the tensile value is 81.3 N, which is greater than 80 N and higher than the tensile value of conventional products (25 - 50 N).

[0070] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A sheet-base composite material, comprising a base and a sheet fixed on the base; the base is prepared by extrusion molding; The sheet material comprises a bristle portion and a chain braid portion for fixing the bristle portion; the bristle portion comprises arranged fiber bundles; The sheet material includes low-fuse wire; the melting point of the low-fuse wire is 80-110°C.

2. The sheet-base composite material according to claim 1, characterized in that: The base is made of nylon, polymethyl methacrylate, nylon polyamide, BASF S760, polyethylene or polypropylene.

3. The sheet-base composite material according to claim 2, characterized in that: The extrusion molding conditions include: The temperatures of main screw zones 1 to 6 are 250℃±50℃, 250℃±50℃, 250℃±50℃, 245℃±50℃, 240℃±50℃ and 220℃±50℃ respectively; The gear pump speed is 15 to 45 r / min; the traction vehicle speed is 5 to 15 m / min; the melt pressure is 1 to 10 MPa; and the vacuum degree is -50 to -1 cmHg.

4. The sheet-base composite material according to claim 1, characterized in that: The fineness of the low-fusible wire is 100-300D.

5. The sheet-base composite material according to claim 1 or 4, characterized in that: The low-fuse wire is doped in at least one of the bristle portion and the chain braid portion.

6. The sheet-base composite material according to claim 1, characterized in that: The fiber bundles in the bristle part are U-shaped folded transverse fibers.

7. The sheet-base composite material according to claim 1 or 6, characterized in that: The raw material of the fiber bundle in the bristle part includes one or more of nylon yarn, polyester yarn and polypropylene yarn.

8. The sheet-base composite material according to claim 1, characterized in that: The raw material of the chain braided part includes fibers.

9. The method for preparing the sheet-base composite material according to any one of claims 1 to 8, characterized in that: The following steps are involved: The base is prepared by extrusion molding; Fixing the sheet material on the base and bonding them to obtain the sheet material-base composite material; The sheet material comprises a bristle portion and a chain braid portion for fixing the bristle portion; the bristle portion comprises arranged fiber bundles; The sheet material includes low-fuse wire; the melting point of the low-fuse wire is 80-110°C.

10. Use of the sheet-base composite material according to any one of claims 1 to 8 or the sheet-base composite material prepared by the preparation method according to claim 9 in cleaning products.

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