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Double-layer composite floor and preparation method thereof

A double-layer composite and floor technology, which is applied to chemical instruments and methods, coatings, layered products, etc., can solve the problems of high material cost and low flexural strength of polyurethane sheets, achieve good surface contact, and improve laying efficiency , The effect of reducing the laying cost

Pending Publication Date: 2021-06-29
ANHUI SENTAI WPC GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this material is a polyurethane foam material. When used as a floor, the flexural strength of the polyurethane sheet is low, and the material cost is high. At the same time, since polyurethane is a flammable material, a large amount of flame retardant needs to be added to meet the use requirements.

Method used

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  • Double-layer composite floor and preparation method thereof
  • Double-layer composite floor and preparation method thereof
  • Double-layer composite floor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Such as figure 1 As shown, a double-layer composite floor includes a hard core layer 2 and an elastic surface layer 1 made of PU, and the elastic surface layer 1 wraps and covers the hard core layer 2 on the upper surface and the side surface of the floor.

[0078] A matching structure is provided between the elastic surface layer 1 and the hard core layer 2, and the matching structure includes a plurality of unit elements formed on the surface A, a plurality of corresponding elements formed on the surface B, and a plurality of connecting units.

[0079] The surface A is the surface of the hard core layer 2 in contact with the elastic surface layer 1 , and the surface B is the surface of the elastic surface layer 1 in contact with the hard core layer 2 .

[0080] The connecting unit includes a first connecting unit arranged between two adjacent unit elements and a second connecting unit arranged between two adjacent corresponding pieces; the unit element is a section ar...

Embodiment 2

[0104] The difference from Example 1 is that the hard core layer includes a PVC hard foam core, a PVC skin layer covering the PVC hard foam core, and a co-extruded shell covering the PVC skin layer . That is, the thickness of the PVC skin layer is about 0.5 mm without the glass fiber reinforced layer; the thickness of the co-extrusion shell is about 2 mm.

[0105] The preparation method of hard core layer is as follows:

[0106] After the PVC foam material is fully mixed (PVC resin 100kg, calcium carbonate 50kg, stearic acid 0.5kg, magnesium stearate 0.5kg, calcium zinc stabilizer 5kg, AC foaming agent 1kg, zinc oxide 0.5kg, mix at high speed Mix in the machine for 15 minutes, the mixing temperature is 120°C, and then put it into the cold mixer to cool to 30°C), and extrude from the die orifice through the main extruder;

[0107] At the same time, the second raw material (PVC resin 100kg, glass hollow microspheres 20kg, calcium carbonate 50kg, magnesium stearate 2.0kg) that ...

Embodiment 3

[0111] The difference from the first embodiment is that the hard core layer is a preformed aluminum alloy profile. The preparation method is the same as in Example 1.

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Abstract

The invention relates to a floor, in particular to a double-layer composite floor and a preparation method thereof, and belongs to the technical field of floor manufacturing. The composite floor comprises a hard core layer and an elastic surface layer, and the elastic surface layer at least wraps and covers the hard core layer in a range of the upper surface and part of the side surface of the floor. A matching structure is formed between the hard core layer and the elastic surface layer. The matching structure comprises a plurality of unit pieces formed on the surface of the hard core layer and a plurality of corresponding pieces formed on the surface of the elastic surface layer. The unit pieces are of strip-shaped structures arranged in the length direction of the floor, and the sections of the strip-shaped structures are in a protruding shape or a groove shape. The matching structure is arranged between the elastic surface layer and the hard foaming core layer, so that the elastic surface layer firmly coats the hard foaming core layer, and the composite floor has the advantages of the hard foaming core layer and the elastic surface layer, and is high in compressive strength and good in surface contact.

Description

technical field [0001] The invention relates to a floor, in particular to a double-layer composite floor and a preparation method thereof, belonging to the technical field of floor manufacturing. Background technique [0002] Elastomers such as rubber, synthetic rubber, and thermoplastic elastomers have a good touch, and are characterized by soft quality and good elasticity. This makes the board with the surface of the elastomer material have incomparable advantages in terms of decoration compared with other polymer materials. [0003] The patent application document with the international publication number WO2018 / 154287 A1 discloses a low-heat-absorbing flame-retardant polyurethane wood-like material. The polyurethane board produced by it has the characteristics of surface layer flame-retardant, low heat-absorbing, antibacterial, and soft touch. . However, this material is a polyurethane foam material. When used as a floor, the flexural strength of the polyurethane sheet...

Claims

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Application Information

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IPC IPC(8): B32B27/40B32B3/04B32B3/30B32B3/06B32B17/02B32B17/10B32B27/30B32B33/00E04F15/10B29C43/00B29C43/18B29C43/20B29C44/50B29C44/24B29C48/305
CPCB29C43/003B29C43/18B29C43/203B29C44/24B32B3/04B32B3/06B32B3/30B32B5/02B32B5/18B32B5/245B32B27/065B32B27/304B32B27/40B32B33/00B32B2262/101B32B2266/0235B32B2307/51B32B2307/546B32B2307/554B29C44/505B29C48/307E04F15/10B29C39/10B29K2007/00B29K2021/00B29K2027/06B29K2105/04B29L2031/732B32B5/028B32B5/20B32B5/32B32B7/08B32B15/06B32B15/20B32B25/08B32B25/12B32B25/14B32B27/08B32B27/12B32B27/18B32B27/302B32B27/32B32B27/365B32B2260/021B32B2260/046B32B2264/067B32B2264/10B32B2264/101B32B2264/102B32B2264/104B32B2274/00B32B2307/536B32B2307/732B32B2419/00B29C48/07B29C48/154B29C48/21B29C48/305B29C48/34B29C48/49E04F15/105
Inventor 唐道远吴光荣邓梦德
Owner ANHUI SENTAI WPC GRP CO LTD
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