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A kind of pvc floor composite coating and preparation method thereof

A composite coating and floor technology, which can be used in coatings, polyurea/polyurethane coatings, devices for coating liquids on surfaces, etc. Ideal, UV coating curing shrinkage and other problems, to avoid thermal deformation, low curing shrinkage, low shrinkage effect

Active Publication Date: 2022-03-11
HUNAN BANFERT NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The common PVC floor coating process is to carry out single coating or double coating on the wear-resistant layer, and the total coating amount generally does not exceed 20g / m 2 , the thinner coating leads to unsatisfactory scratch resistance and wear resistance. It is very easy to be scratched by tables, chairs and even soles during use, which seriously reduces the aesthetics of the floor; increasing the thickness of the coating is to improve the scratch resistance of the coating. However, due to the large curing shrinkage of UV coatings, when applied to PVC, thick coatings will lead to poor dimensional stability of PVC substrates and easy warping and deformation

Method used

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  • A kind of pvc floor composite coating and preparation method thereof
  • A kind of pvc floor composite coating and preparation method thereof
  • A kind of pvc floor composite coating and preparation method thereof

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Embodiment 1

[0038] A kind of PVC floor composite coating of the present invention, the structure of this composite coating is as figure 1 As shown, the composite coating is located on the substrate 5, and the composite coating sequentially includes a first primer layer 1—an elastic adhesion primer layer, a second primer layer 2—an elastic wear-resistant primer layer, Third primer layer 3 - elastic primer layer and topcoat layer 4 .

[0039] In this embodiment, the first primer layer 1 is prepared from the following raw materials in parts by mass: two-functional polyurethane acrylic resin: 40 parts, reactive diluent A: 35 parts, photoinitiator 3 parts and additive A: 22 parts ; Wherein, reactive diluent A comprises 8 parts of hydroxyethyl methacrylate (HEMA), 10 parts of acryloyl morpholine (ACMO) and 17 parts of 1,6-hexanediol diacrylate (HDDA); light The initiator is (2,4,6-trimethylbenzoyl) diphenylphosphine oxide (TPO); Additive A contains 15 parts of quartz powder, 2 parts of dispers...

Embodiment 2

[0054] A kind of PVC floor composite coating of the present invention, the structure of this composite coating is as figure 1 As shown, the composite coating is located on the substrate 5, and the composite coating sequentially includes a first primer layer 1—an elastic adhesion primer layer, a second primer layer 2—an elastic wear-resistant primer layer, Third primer layer 3 - elastic primer layer and topcoat layer 4 .

[0055] In this embodiment, the first primer layer 1 is prepared from the following raw materials in parts by mass: two-functional polyurethane acrylic resin: 55 parts, reactive diluent A: 30 parts, photoinitiator 3.5 parts and additive A: 11.5 parts ; Wherein, reactive diluent A comprises 5 parts of hydroxyethyl methacrylate (HEMA), 8 parts of neopentyl glycol diacrylate (NPGDA), 10 parts of 1,6-hexanediol diacrylate (HDDA ) and 7 parts of tripropylene glycol diacrylate (TPGDA); the photoinitiator is 2 parts of (2,4,6-trimethylbenzoyl) diphenylphosphine oxid...

Embodiment 3

[0070] A kind of PVC floor composite coating of the present invention, the structure of this composite coating is as figure 1 As shown, the composite coating is located on the substrate 5, and the composite coating sequentially includes a first primer layer 1—an elastic adhesion primer layer, a second primer layer 2—an elastic wear-resistant primer layer, Third primer layer 3 - elastic primer layer and topcoat layer 4 .

[0071] In this embodiment, the first primer layer 1 is prepared from the following raw materials in parts by mass: two-functional polyurethane acrylic resin: 20 parts, reactive diluent A: 50 parts, photoinitiator 6 parts and additive A: 24 parts ; Wherein, reactive diluent A comprises 10 parts of hydroxyethyl methacrylate (HEMA), 10 parts of neopentyl glycol diacrylate (NPGDA), 15 parts of 1,6-hexanediol diacrylate (HDDA ) and 15 parts of polyethylene glycol diacrylate (PEG (200) DA); the photoinitiator contains 4 parts of (2,4,6-trimethylbenzoyl) diphenylph...

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Abstract

The invention discloses a PVC floor composite coating, the composite coating is located on the surface of a substrate, and the composite coating sequentially includes a first primer layer, a second primer layer, a third primer layer and a topcoat layer from bottom to top . The preparation method of the present invention comprises the following steps: firstly treating the substrate, then coating the first primer layer on the substrate, and curing; then coating the second primer layer on the surface of the first primer layer, and curing; The surface of the second primer layer is coated with the third primer layer and cured; finally, the top coat is applied and cured, that is, a composite coating is formed on the substrate. The present invention combines the formula design of the PVC floor composite coating with the curing method of the high-intensity LED light source, making it possible to apply multi-coat coating to the PVC floor. The cured coating has low shrinkage, excellent toughness, high hardness, and Wear and scratch resistance, which can solve the industry common problem that PVC floor is easy to scratch.

Description

technical field [0001] The invention belongs to the PVC floor industry, and in particular relates to a PVC floor composite coating and a preparation method thereof. Background technique [0002] PVC floor is a new type of light-weight floor decoration material that is very popular in the world today. It has the advantages of green environmental protection, super wear resistance, various designs and colors, and quick installation and construction. It is used in hospitals, schools, office buildings, Shopping malls, supermarkets, transportation and other places have been widely used and highly recognized. [0003] The common PVC floor coating process is to carry out single coating or double coating on the wear-resistant layer, and the total coating amount generally does not exceed 20g / m 2 , the thinner coating leads to unsatisfactory scratch resistance and wear resistance. It is very easy to be scratched by tables, chairs and even soles during use, which seriously reduces the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D7/00B05D7/04B05D3/02C09D175/14C09D7/63C09D7/61
Inventor 李时珍李新雄李辉
Owner HUNAN BANFERT NEW MATERIALS TECH
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