Anti-deformation stone plastic floor
By adopting a multi-layer structure in PVC stone plastic floor and combining the horizontal and vertical staggered reinforcement strip structure of the anti-permanent deformation composite recovery layer, the problem of floor warping deformation and deterioration of toughness after the increase of inorganic fillers is solved, and the floor is well resistant to deformation and thermal expansion and contraction performance is achieved.
Patent Information
- Application Number
- CN202411756060.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-03-14
AI Technical Summary
The existing PVC stone plastic floor is prone to warping and deformation in the later stage of processing, and when a large amount of inorganic filler is added to control the expansion and shrinkage, the density and hardness of the product increase, but the toughness decreases, the edges become brittle, and it is easy to damage during processing and transportation.
A multi-layer structure consisting of a wear-resistant polymer surface layer, a permanent deformation-resistant composite recovery layer, a thermal polymer grafting buffer layer and a high-hardness polymer base layer is adopted. The permanent deformation-resistant composite recovery layer is equipped with a reinforced rib structure with horizontal and vertical overlapping overlap, and is fixedly formed by polymer covering to form a square or triangular lattice structure.
It effectively resists bending and deformation, maintains high toughness, improves the floor's resistance to thermal expansion and contraction, and reduces the possibility of cracking and deformation.
Smart Images
Figure CN119616175A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of anti-deformation stone plastic floor, in particular to an anti-deformation stone plastic floor. Background Art
[0002] Traditional ceramic floors, solid wood floors, and composite floors are hard to the touch, easy to deform, and have excessive formaldehyde. They can no longer meet people's requirements. There is an urgent need for an indoor floor that is soft, not easy to deform, and environmentally friendly. LVT floors, also known as PVC floors, came into being to meet people's needs; the main component of PVC floors is polyvinyl chloride, which is widely used in various aspects of home and business due to its rich patterns and colors. LVT floors are a new type of lightweight floor decoration material that is very popular in the world today, also known as "lightweight floors."
[0003] The various layers of the above-mentioned PVC stone plastic floor are laminated by hot pressing. In the later stage of processing, warping and deformation are prone to occur, which affects the quality of the floor and the defective rate remains high.
[0004] In order to control the expansion and contraction rates of existing plastic floors, a large amount of inorganic fillers (calcium carbonate) are added. However, adding a large amount of inorganic fillers will bring new problems. With the increase of inorganic fillers, the density and hardness of the product will also increase, while the toughness will decrease. The edges of the product will easily become brittle and easily damaged during processing and transportation.
[0005] This case is proposed to solve or improve the shortcomings or deficiencies of the prior art. Summary of the invention
[0006] A deformation-resistant stone plastic floor comprises a multilayer structure consisting of a wear-resistant polymer surface layer, an anti-permanent deformation composite recovery layer, a thermal polymerization grafting buffer layer, and a high-hardness polymer bottom layer, wherein the wear-resistant polymer surface layer and the anti-permanent deformation composite recovery layer are hot-pressed and fused, the thermal polymerization grafting buffer layer and the anti-permanent deformation composite recovery layer are adhesively cured, the thermal polymerization grafting buffer layer and the high-hardness polymer bottom layer are adhesively cured, the anti-permanent deformation composite recovery layer is provided with a reinforcing rib structure that is overlapped horizontally and vertically and is fixed after being covered with a high molecular polymer, and the anti-permanent deformation composite recovery layer plays a role in resisting bending and deformation in the structure and can maintain high toughness.
[0007] In a preferred embodiment, the anti-permanent deformation composite recovery layer includes a plurality of equally spaced and criss-crossed twisted lightweight fiber strips, the twisted lightweight fiber strips form a square or triangular lattice structure, the twisted lightweight fiber strips are transversely and vertically staggered and wound up and down to form a shape, and a polymer film is fixed on the upper and lower surfaces of the twisted lightweight fiber strips.
[0008] In a preferred embodiment, a TPU coating is adhesively fixed to the upper end surface of the twisted lightweight fiber strip, and a PVC coating is adhesively fixed to the lower end surface of the twisted lightweight fiber strip, and the PVC coating and the TPU coating are adhered to each other to wrap the twisted lightweight fiber strip inside, thereby preventing the twisted lightweight fiber strip from spreading and misaligning in the product.
[0009] In a preferred embodiment, the twisted lightweight fiber strips include glass fibers and carbon fibers, and the glass fibers and carbon fibers are twisted into strands by a twisting machine and then formed by plastic wrapping.
[0010] In a preferred embodiment, after the glass fiber and the carbon fiber are twisted and before the plastic wrapping molding, carbon fiber impregnation glue is provided on their surfaces by an impregnation machine to improve the toughness of the fiber and avoid brittle fracture.
[0011] In a preferred embodiment, a plurality of through-going anti-wrinkle stress deformation holes are provided at intervals on the TPU coating and the PVC coating, and the anti-wrinkle stress deformation holes are located in the lattice structure between the twisted lightweight fiber strips. This can reduce the wrinkling of the TPU coating and the PVC coating when they are bent, and can also fix the wear-resistant polymer surface layer and the thermal polymerization grafted buffer layer by gluing through the anti-wrinkle stress deformation holes, thereby more firmly fixing the anti-permanent deformation composite recovery layer.
[0012] In a preferred embodiment, the thermally polymerized grafted buffer layer is a UV-curable polyurethane layer.
[0013] In a preferred embodiment, the thickness of the thermally polymerized grafted buffer layer is not greater than the thickness of the anti-permanent deformation composite recovery layer.
[0014] The advantages and positive effects of the present invention are: the present application integrates and improves the existing process structure to embed an anti-permanent deformation composite recovery layer with good deformation resistance in the transverse and longitudinal sections into the stone-plastic structure, thereby providing good support for the stone-plastic structure, and its resistance to thermal expansion and contraction is also very good and it is not easy to crack or deform. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments.
[0016] Figure 1 It is a schematic diagram of the structure of the present invention;
[0017] Figure 2 yes Figure 1 A schematic diagram of the top view of the enlarged structure of the permanent deformation resistant composite recovery layer 11 (ie Figure 3 AA section view);
[0018] Figure 3 yes Figure 1Schematic diagram of the structure of Figure 11.
[0019] Markings in the picture: 10, wear-resistant polymer surface layer; 11, anti-permanent deformation composite recovery layer; 12, thermal polymerization grafted buffer layer; 13, high hardness polymer bottom layer; 14, anti-wrinkle stress deformation hole; 15, TPU coating; 16, twisted lightweight fiber strips; 18, glass fiber; 19, PVC coating; 20, carbon fiber; 21, carbon fiber impregnated glue. DETAILED DESCRIPTION
[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.
[0021] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings:
[0022] like Figure 1-3 As shown, the anti-deformation stone plastic floor described in the present invention comprises a multilayer structure consisting of a wear-resistant polymer surface layer 10, an anti-permanent deformation composite recovery layer 11, a thermal polymerization grafting buffer layer 12, and a high-hardness polymer bottom layer 13, wherein the wear-resistant polymer surface layer 10 and the anti-permanent deformation composite recovery layer 11 are hot-pressed and fused, the thermal polymerization grafting buffer layer 12 and the anti-permanent deformation composite recovery layer 11 are glued and cured, the thermal polymerization grafting buffer layer 12 and the high-hardness polymer bottom layer 13 are glued and cured, the anti-permanent deformation composite recovery layer 11 is provided with a reinforcing rib structure that is overlapped horizontally and vertically and is fixed after being covered with a high molecular polymer, and the anti-permanent deformation composite recovery layer 11 plays a role in resisting bending and deformation in the structure and can maintain a high toughness.
[0023] In a preferred embodiment, the anti-permanent deformation composite recovery layer 11 includes a plurality of equally spaced and criss-crossed twisted lightweight fiber strips 16, the twisted lightweight fiber strips 16 form a square or triangular lattice structure, the twisted lightweight fiber strips 16 are transversely and vertically staggered and wound up and down to form a shape, and a polymer film is fixed on the upper and lower surfaces of the twisted lightweight fiber strips 16.
[0024] In a preferred embodiment, a TPU coating 15 is adhesively fixed to the upper end surface of the twisted lightweight fiber strip 16, and a PVC coating 19 is adhesively fixed to the lower end surface of the twisted lightweight fiber strip 16, and the PVC coating 19 and the TPU coating 15 are adhered to each other to cover the twisted lightweight fiber strip 16 inside, thereby preventing the twisted lightweight fiber strip 16 from spreading and misaligning in the product.
[0025] In a preferred embodiment, the twisted lightweight fiber strip 16 includes glass fiber 18 and carbon fiber 20. The glass fiber 18 and the carbon fiber 20 are twisted into strands by a twisting machine and then formed by plastic wrapping.
[0026] In a preferred embodiment, after the glass fiber 18 and the carbon fiber 20 are twisted and before the plastic wrapping molding, a carbon fiber impregnation glue 21 is provided on the surface of the glass fiber 18 and the carbon fiber 20 through an impregnation machine to improve the toughness of the fiber and avoid brittle fracture.
[0027] In a preferred embodiment, a plurality of through-holes 14 for anti-wrinkle stress deformation are provided at intervals on the TPU coating 15 and the PVC coating 19, and the anti-wrinkle stress deformation holes 14 are located in the lattice structure between the twisted lightweight fiber strips 16. This can reduce the wrinkling of the TPU coating 15 and the PVC coating 19 when bent, and can also fix the wear-resistant polymer surface layer 10 and the thermal polymerization grafted buffer layer 12 by gluing through the anti-wrinkle stress deformation holes 14, thereby fixing the anti-permanent deformation composite recovery layer 11 more firmly.
[0028] In a preferred embodiment, the thermally polymerized grafting buffer layer 12 is a UV-curable polyurethane layer.
[0029] In a preferred embodiment, the thickness of the thermally polymerized grafted buffer layer 12 is not greater than the thickness of the anti-permanent deformation composite recovery layer 11 .
[0030] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive, and therefore the present invention is not limited to the embodiments described in the specific implementation manners. Any other implementation manners derived by those skilled in the art based on the technical solutions of the present invention also fall within the scope of protection of the present invention.
Claims
1. A deformation-resistant stone plastic floor, characterized by: The invention comprises a multilayer structure consisting of a wear-resistant polymer surface layer (10), an anti-permanent deformation composite recovery layer (11), a thermal polymerization grafted buffer layer (12), and a high-hardness polymer bottom layer (13), wherein the wear-resistant polymer surface layer (10) and the anti-permanent deformation composite recovery layer (11) are formed by hot pressing and melting, the thermal polymerization grafted buffer layer (12) and the anti-permanent deformation composite recovery layer (11) are formed by adhesive curing, the thermal polymerization grafted buffer layer (12) and the high-hardness polymer bottom layer (13) are formed by adhesive curing, the anti-permanent deformation composite recovery layer (11) is provided with a reinforcing rib structure that is overlapped horizontally and vertically and is fixed after being covered with a high molecular polymer, and the anti-permanent deformation composite recovery layer (11) plays a role in resisting bending and deformation in the structure and can maintain a relatively high toughness.
2. The anti-deformation stone plastic floor according to claim 1, characterized in that: The anti-permanent deformation composite recovery layer (11) comprises a plurality of equally spaced and crisscrossed twisted lightweight fiber strips (16), wherein the twisted lightweight fiber strips (16) form a square or triangular lattice structure, wherein the twisted lightweight fiber strips (16) are interlaced and wound in a horizontal direction and in a vertical direction, and a high molecular polymer film is fixed on the upper and lower surfaces of the twisted lightweight fiber strips (16).
3. The anti-deformation stone plastic floor according to claim 2, characterized in that: A TPU coating (15) is adhesively fixed to the upper end surface of the twisted lightweight fiber strip (16), and a PVC coating (19) is adhesively fixed to the lower end surface of the twisted lightweight fiber strip (16), and the PVC coating (19) and the TPU coating (15) are adhered to each other to cover the twisted lightweight fiber strip (16) inside, thereby preventing the twisted lightweight fiber strip (16) from spreading and misaligning in the product.
4. The anti-deformation stone plastic floor according to claim 3, characterized in that: The twisted lightweight fiber strip (16) comprises glass fiber (18) and carbon fiber (20). The glass fiber (18) and the carbon fiber (20) are twisted into strands by a twisting machine and then wrapped with plastic to form strands.
5. The anti-deformation stone plastic floor according to claim 4, characterized in that: After the glass fibers (18) and the carbon fibers (20) are twisted and before the plastic wrapping molding, a carbon fiber impregnation glue (21) is provided on their surfaces by an impregnation machine to improve the toughness of the fibers and avoid brittle fracture.
6. The anti-deformation stone plastic floor according to claim 5, characterized in that: A plurality of through-going anti-wrinkle stress deformation holes (14) are provided at intervals on the TPU coating (15) and the PVC coating (19), and the anti-wrinkle stress deformation holes (14) are located in the lattice structure between the twisted lightweight fiber strips (16). This can reduce the wrinkling phenomenon of the TPU coating (15) and the PVC coating (19) when they are bent, and can also fix the wear-resistant polymer surface layer (10) and the thermally polymerized grafted buffer layer (12) by gluing through the anti-wrinkle stress deformation holes (14), thereby fixing the anti-permanent deformation composite recovery layer (11) more firmly.
7. The anti-deformation stone plastic floor according to any one of claims 1 to 6, characterized in that: The thermally polymerized grafting buffer layer (12) is a UV-cured polyurethane layer.
8. The anti-deformation stone plastic floor according to any one of claims 1 to 6, characterized in that: The thickness of the thermally polymerized grafted buffer layer (12) is not greater than the thickness of the anti-permanent deformation composite recovery layer (11).