Plastic floor made of polypropylene material

Abstract

The plastic floor is composed of a plurality of floor units, each floor unit is composed of a surface UV coating, a PP transparent wear-resistant layer, a hot melt adhesive film layer, a PP printing decoration layer, a middle layer and a PP composite backing material layer, the hot melt adhesive film layer is made of one or more of EVA, PA, PES, PO and TPU, and the PP composite backing material layer is made of polypropylene. And the hot melt adhesive film layer is manufactured into a single layer through hot-pressing lamination or is directly coated on the back surface of the PP transparent wear-resistant layer. The hot melt adhesive film layer adopted by the utility model is independently customized and purchased, hot melt adhesive can also be coated on the back surface of the PP transparent wear-resistant layer, production can be carried out through the traditional processes of hot pressing, multi-layer hot lamination, extrusion and re-lamination and the like, the processing operation is convenient, the lamination among the layers is very firm, and the production efficiency is high. Compared with the existing PP plastic floor in the market, the floor disclosed by the utility model is lower in manufacturing cost, mature and stable in production process, high in production efficiency and yield and capable of being produced on a large scale.

Description

TECHNICAL FIELD

[0001] The utility model relates to floor technology field, concretely relates to a plastic floor of polypropylene material. BACKGROUND

[0002] The main use material of the plastic floor in the market is PVC and rubber, and the floor can be divided into sheet material and coiled material, and the sheet material is basically semi-hard ordinary floor and lock floor with buckle; the sheet material floor basically uses PVC material at present. There are PET material, PP material and TPU material in the market, and the thickness is between 2.0-6.0mm.

[0003] The main problem of the PET and PP material plastic floor in the market is the adhesion between the printed color film and the transparent surface layer. The traditional PVC material floor process and the matching degree of each production material are very suitable, the PVC transparent wear-resistant layer on the surface, the PVC printed color film and the PVC composite substrate layer below can be formed by one-time pressing and sticking, and the adhesion between the materials of the product is very firm. The PP wear-resistant layer on the surface of the existing PP material floor product and the PP printed color film below are adhered together by composite pressing, and the layer adhesion between the two materials of the produced PP plastic floor is generally low, and the layering is easy.

[0004] In addition, the PP transparent wear-resistant layer and the PP printed layer of the existing PP material floor product are combined into one material after complete compounding, which has great limitations in batch production, and the specifications and color types of the PP wear-resistant layer and the PP printed color film are fixed. When producing products of multiple specifications, more materials need to be prepared, which causes great waste of production cost and storage space. In addition, the PP transparent layer and the PP printed color film require the manufacturer to have the ability to produce both materials or to purchase two materials for secondary compounding, which increases the production and transportation cost. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a plastic floor of polypropylene material to solve the problems in the background technology.

[0006] A plastic floor of polypropylene material is composed of multiple floor units, the floor unit is composed of a surface UV coating layer, a PP transparent wear-resistant layer, a hot melt adhesive film layer, a PP printed decorative layer, an intermediate layer and a PP composite base material layer, the material of the hot melt adhesive film layer is one or several of EVA, PA, PES, PO and TPU, the hot melt adhesive film layer is made into a separate layer by hot pressing or directly coated on the back of the PP transparent wear-resistant layer.

[0007] Further, the hot melt adhesive film layer has a film thickness of 0.02-0.3mm.

[0008] Further, the intermediate layer is a PP composite intermediate layer.

[0009] Further, the intermediate layer is composed of two PP composite intermediate layers and a composite glass fiber layer, the composite glass fiber layer is located between the two PP composite intermediate layers; the PP composite intermediate layer contains chopped glass fibers, and the content of the chopped glass fibers accounts for 2-25% of the gram weight; the composite glass fiber layer is a glass fiber layer, a mesh glass fiber layer or a composite glass fiber chopped felt, or a glass fiber layer coated with an adhesive film or a paste-like resin, and the gram weight ranges from 15g to 400g.

[0010] Further, the back surface of the PP composite base layer is further provided with an adhesive layer and a sound reduction layer in sequence.

[0011] Further, the material of the adhesive layer is one or more of hot melt adhesive, two-component adhesive and PUR thermosetting glue, and the material of the sound reduction layer is one or more of chemical fiber cloth, IXPE, EVA and cork, and the thickness of the sound reduction layer is 0.5-3mm.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1, the hot melt adhesive film layer of the utility model can be independently customized and purchased, or hot melt adhesive can be coated on the back surface of the PP transparent wear-resistant layer, and the production can be carried out through traditional hot pressing, multi-layer hot bonding, extrusion and bonding and the like, and the processing operation is convenient, and the layer bonding between the layers is also very firm.

[0014] 2, the floor of the utility model has the same functions as the traditional PVC floor, such as non-toxic, odorless, environmental protection, durability, anti-skid, waterproof, sound absorption and rich color.

[0015] 3, compared with the existing market PP plastic floor, the product manufacturing cost of the utility model is lower, the production process is mature and stable, the production efficiency and the yield are high, and the product can be produced in large quantities.

[0016] 4, the product of the utility model has high recycling rate and no recycling difficulty, and the processing scraps in the production process of the product can be directly recycled and reused without crushing and grinding like other non-PVC material floors.

[0017] 5, the material applicability of the product of the utility model is wide, and the material supply chain is wide.

[0018] 6, the product of the utility model adds a flame-retardant material in the formula, which can effectively improve the defects of the PP material itself. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is product structure schematic view of the utility model embodiment 1-3;

[0020] Figure 2 It is product structure schematic view of the utility model embodiment 4;

[0021] Figure 3 It is product structure schematic view of the utility model embodiment 5;

[0022] Figure 4 It is product structure schematic view of the utility model embodiment 6;

[0023] In the drawing: 1-surface UV coating; 2-PP transparent wear-resistant layer; 3-hot melt adhesive film layer; 4-PP printing decorative layer; 5-PP composite intermediate layer; 6-PP composite base material layer; 7-adhesive layer; 8-sound reduction layer; 9-composite glass fiber layer. DETAILED DESCRIPTION

[0024] The technical scheme of the utility model will be described in more detail below in combination with specific embodiments and drawings.

[0025] Embodiment 1

[0026] A plastic floor of polypropylene material is composed of a plurality of floor units, the floor unit is composed of a surface UV coating layer 1, a PP transparent wear-resistant layer 2, a hot melt adhesive film layer 3, a PP printing decorative layer 4, an intermediate layer and a PP composite base material layer 6, the material of the hot melt adhesive film layer is one or several of EVA, PA, PES, PO and TPU, the hot melt adhesive film layer 3 is made into a single layer by hot pressing or directly coated on the back of the PP transparent wear-resistant layer, and the adhesive film thickness of the hot melt adhesive film layer is 0.02mm. The PP composite intermediate layer 5 contains chopped glass fibers, and the content of the chopped glass fibers is 2% of the gram weight ratio;

[0027] The manufacturing method of the plastic floor of polypropylene material includes the following steps:

[0028] 1) preparing the PP composite intermediate layer 5: mixing PP particles, plasticizer, heat stabilizer and filling material according to the weight parts of 90 parts, 9.9 parts, 0.1 part and 180 parts for 30s, and densifying for 60s, and then extruding a sheet at 130 DEG C, and the sheet thickness is 0.2mm, the sheet length is 0.5m, the sheet width is 0.5m, and chopped glass fibers are added; the filling material includes calcium carbonate and flame retardant, and the flame retardant is magnesium hydroxide;

[0029] 2) Preparation of PP composite base material layer 6: 90 parts, 9.9 parts, 0.1 parts, 180 parts are mixed for 30 seconds, and then mixed for 60 seconds, and then extruded into a sheet at 130°C, with a sheet thickness of 0.2mm, a sheet length of 0.5m, and a sheet width of 0.5m;

[0030] 3) The PP transparent wear-resistant layer 2, the hot melt adhesive film layer 3, and the PP printed decorative layer 4 are sequentially combined with the PP composite intermediate layer 5 and the PP composite base material layer 6 by flat vulcanization hot pressing, or by using a multi-layer hot laminating machine, or by using an extrusion device, and then processed into a product by first heating and then cooling, and then treated by surface UV to obtain the UV coating layer 1, and then heat-treated and cold-treated by tempering to stabilize the heat shrinkage performance of the product, thereby preparing the finished product floor.

[0031] Example 2

[0032] A plastic floor made of polypropylene material is composed of a plurality of floor units, which are composed of a surface UV coating layer 1, a PP transparent wear-resistant layer 2, a hot melt adhesive film layer 3, a PP printed decorative layer 4, an intermediate layer, and a PP composite base material layer 6. The material of the hot melt adhesive film layer is one or more of EVA, PA, PES, PO, and TPU. The hot melt adhesive film layer 3 is made into a separate layer by hot pressing or directly coated on the back of the PP transparent wear-resistant layer. The thickness of the hot melt adhesive film layer is 0.15mm. The PP composite intermediate layer 5 contains short-cut glass fibers, and the content of short-cut glass fibers is 15% by weight.

[0033] The method for manufacturing the plastic floor made of polypropylene material comprises the following steps:

[0034] 1) Preparation of PP composite intermediate layer 5: PP particles, plasticizer, heat stabilizer, color powder, and filling material are mixed in a weight ratio of 95 parts, 2 parts, 1.5 parts, 0.5 parts, and 300 parts for 1200 seconds, and then mixed for 180 seconds, and then extruded into a sheet at 150°C, with a sheet thickness of 1.5mm, a sheet length of 0.7m, and a sheet width of 1.2m. The filling material includes calcium carbonate and a flame retardant, and the flame retardant is magnesium hydroxide.

[0035] 2) Preparation of PP composite base material layer 6: PP particles, plasticizer, heat stabilizer, color powder, and filling material are mixed in a weight ratio of 95 parts, 2 parts, 1.5 parts, 0.5 parts, and 300 parts for 1200 seconds, and then mixed for 180 seconds, and then extruded into a sheet at 150°C, with a sheet thickness of 1.5mm, a sheet length of 0.7m, and a sheet width of 1.2m.

[0036] 3) sequentially PP transparent wear-resistant layer 2, hot melt adhesive film layer 3, PP printed decorative layer 4 and PP composite middle material layer 5, PP composite bottom material layer 6 are processed into a product by flat vulcanization hot pressing, or using a multi-layer hot laminating machine to perform lamination, or through extrusion equipment production, first hot and then cold processing, then surface UV treatment to obtain UV coating 1, and then heat and cold treatment through the tempering process to make the product heat shrinkage stable, and the finished floor is prepared through molding processing.

[0037] Example 3

[0038] A plastic floor of polypropylene material is composed of a plurality of floor units, the floor unit is composed of a surface UV coating 1, a PP transparent wear-resistant layer 2, a hot melt adhesive film layer 3, a PP printed decorative layer 4, an intermediate layer and a PP composite bottom material layer 6, the material of the hot melt adhesive film layer is one or several of EVA, PA, PES, PO and TPU, the hot melt adhesive film layer 3 is made into a separate layer by hot pressing lamination or directly coated on the back of the PP transparent wear-resistant layer, and the adhesive film thickness of the hot melt adhesive film layer is 0.02-0.3mm. The PP composite middle material layer 5 contains short-cut glass fibers, and the content of short-cut glass fibers is 2-25% by weight;

[0039] The manufacturing method of the plastic floor of polypropylene material includes the following steps:

[0040] 1) preparing the PP composite middle material layer 5: mixing PP particles, plasticizer, heat stabilizer, color powder and filling material according to the weight parts of 99 parts, 0.1 part, 0.1 part, 0.8 part and 400 parts for 3000s, and densifying for 300s, then rolling out a sheet at 170℃, the sheet thickness is 3mm, the sheet length is 0.7m, and the sheet width is 2m, and short-cut glass fibers are added; the filling material includes calcium carbonate and a flame retardant, and the flame retardant is magnesium hydroxide;

[0041] 2) preparing the PP composite bottom material layer 6: mixing PP particles, plasticizer, heat stabilizer, color powder and filling material according to the weight parts of 99 parts, 0.1 part, 0.1 part, 0.8 part and 400 parts for 3000s, and densifying for 300s, then rolling out a sheet at 170℃, the sheet thickness is 3mm, the sheet length is 0.7m, and the sheet width is 2m;

[0042] 3) sequentially PP transparent wear-resistant layer 2, hot melt adhesive film layer 3, PP printed decorative layer 4 and PP composite middle material layer 5, PP composite bottom material layer 6 are processed into a product by flat vulcanization hot pressing, or using a multi-layer hot laminating machine to perform lamination, or through extrusion equipment production, first hot and then cold processing, then surface UV treatment to obtain UV coating 1, and then heat and cold treatment through the tempering process to make the product heat shrinkage stable, and the finished floor is prepared through molding processing.

[0043] Example 4

[0044] The component composition of the polypropylene plastic floor and the steps 1) and 2) in the manufacturing method are the same as those in Example 2, and the step 3) in the manufacturing method is replaced by:

[0045] 3) sequentially hot-pressing the PP transparent wear-resistant layer 2, the hot melt adhesive film layer 3, the PP printed decorative layer 4, the PP composite middle material layer 5, the PP composite bottom material layer 6 through a flat vulcanization hot press forming, or using a multi-layer hot laminating machine to perform lamination, or through extrusion equipment production, first hot and then cold processing into a product, and then performing surface UV treatment to obtain the UV coating 1, and then performing heat and cold treatment through the tempering process to stabilize the heat shrinkage performance of the product, and bonding the sound reduction layer 8 to the back of the semi-finished product through the adhesive layer 7, and after the sound reduction layer 8 is firmly bonded to the back of the semi-finished product, the specification floor product is prepared through forming processing.

[0046] Example 5

[0047] The component composition of the polypropylene plastic floor and the steps 1) and 2) in the manufacturing method are the same as those in Example 2, and the step 3) in the manufacturing method is replaced by:

[0048] 3) sequentially hot-pressing the PP transparent wear-resistant layer 2, the hot melt adhesive film layer 3, the PP printed decorative layer 4, the PP composite middle material layer 5, the composite glass fiber layer 9, the composite middle material layer 5, and the PP composite bottom material layer 6 through a flat vulcanization hot press forming, or using a multi-layer hot laminating machine to perform lamination, or through extrusion equipment production, first hot and then cold processing into a product, and then performing surface UV treatment to obtain the UV coating 1, and then performing heat and cold treatment through the tempering process to stabilize the heat shrinkage performance of the product, and preparing the finished floor product through forming processing.

[0049] Example 6

[0050] The component composition of the polypropylene plastic floor and the steps 1) and 2) in the manufacturing method are the same as those in Example 2, and the step 3) in the manufacturing method is replaced by:

[0051] 3) PP transparent wear-resistant layer 2, hot melt adhesive film layer 3, PP printed decorative layer 4 and PP composite middle material layer 5, composite glass fiber layer 9, composite middle material layer 5, PP composite bottom material layer 6 are sequentially hot-pressed by a flat vulcanization hot press, or are pasted by using a multi-layer hot laminating machine, or are produced by an extrusion equipment, and are processed into a product by first heating and then cooling, and then the product is subjected to UV treatment to obtain a UV coating layer 1, and then the product is subjected to a tempering process to be heat-treated and cold-treated, so that the heat shrinkage performance of the product is stable, the back surface of the product is bonded to the sound reduction layer 8 through the adhesive layer 7, and after the sound reduction layer 8 is firmly bonded to the back surface of the semi-finished product, the specification floor product is prepared by forming processing.

[0052] The polypropylene material plastic floor product of the utility model can be provided with a layer of hot melt pressure-sensitive adhesive on the back sound reduction layer 8, so that the product is more convenient to install, the back surface of the pressure-sensitive adhesive is provided with a release paper, and the release paper can be quickly arranged by being removed during construction. The utility model adopts the processing technology of the existing hot melt adhesive film, the adhesive film is used as a medium to prepare the hot melt adhesive film layer 3, and the upper and lower layers of the same material or different materials are completely pasted and fixed by heat bonding. The materials used in the utility model do not need to be compounded in advance, and various different specification materials can be provided according to the requirements of customers, the hot melt adhesive film layer 3 used in the utility model can be independently customized and purchased, or the hot melt adhesive can be coated on the back surface of the PP transparent wear-resistant layer 2, the process is very mature, the selection of the material manufacturer and the supply chain of the whole product are very sound.

Claims

1. A plastic floor made of polypropylene material, characterized in that, Floor unit is composed of surface UV coating (1), PP transparent wear-resistant layer (2), hot melt adhesive film layer (3), PP printing decorative layer (4), intermediate layer and PP composite base material layer (6), the material of hot melt adhesive film layer is one or several of EVA, PA, PES, PO, TPU, hot melt adhesive film layer is made by hot pressing or directly coated on the back of PP transparent wear-resistant layer.

2. The polypropylene plastic floor according to claim 1, wherein, The adhesive film thickness of the hot melt adhesive film layer (3) is 0.02-0.3mm.

3. The polypropylene plastic floor according to claim 1, wherein, The intermediate layer is PP composite intermediate layer (5).

4. The polypropylene plastic floor according to any one of claims 1-3, wherein, The intermediate layer is composed of two layers of PP composite intermediate layer (5) and one layer of composite glass fiber layer (9), the composite glass fiber layer (9) is located between the two layers of PP composite intermediate layer (5); the PP composite intermediate layer (5) contains chopped glass fiber, the content of chopped glass fiber is 2-25% of the gram weight ratio; the composite glass fiber layer (9) is glass fiber layer, grid glass fiber layer or composite glass fiber chopped felt, or is glass fiber layer coated with adhesive film or paste-like resin, the gram weight range is 15g-400g.

5. The polypropylene plastic floor according to any one of claims 1-3, wherein, The back of the PP composite base material layer is further provided with adhesive layer (7) and sound reduction layer (8) in sequence.

6. The polypropylene plastic floor according to claim 5, wherein, The material of the adhesive layer (7) is one or more of hot melt adhesive, two-component adhesive, PUR thermosetting glue, the material of the sound reduction layer (8) is one or more of chemical fiber cloth, IXPE, EVA, cork, and the thickness of the sound reduction layer (8) is 0.5-3mm.

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