An EPP bathroom article

Abstract

This utility model discloses an EPP bathroom product, relating to the field of bathroom products. It includes an EPP bathroom product body made of EPP material, which can be one of a toilet, urinal, countertop basin, or bathtub. The EPP bathroom product body has a one-piece molded structure with internal honeycomb reinforcing ribs and a waterproof surface layer. This utility model has advantages such as light weight, high strength, good flame retardancy, good impact resistance, environmental friendliness and recyclability, good safety, good feel, and simple manufacturing process.

Description

Technical Field

[0001] This utility model relates to the field of sanitary ware products, and in particular to an EPP sanitary ware product. Background Technology

[0002] Traditional bathroom products, such as toilets, urinals, countertop basins, and bathtubs, are mostly made of ceramic, which has the following drawbacks:

[0003] 1. Heavy weight: Ceramic products have high density and are heavy, resulting in high transportation and installation costs;

[0004] 2. Fragile: Ceramics have poor impact resistance and are easily broken;

[0005] 3. Insufficient environmental friendliness: Ceramics are not recyclable and pollute the environment after being discarded;

[0006] 4. Poor safety: Due to the high hardness of ceramics, elderly people or children with mobility issues may slip or bump into them, which could endanger their lives.

[0007] 5. Poor tactile feel: The ceramic surface is cold, resulting in a poor user experience when using it in winter. Utility Model Content

[0008] In response to the aforementioned problems, this utility model proposes an EPP bathroom product.

[0009] The technical solution of this utility model is implemented as follows:

[0010] An EPP bathroom product includes an EPP bathroom product body made of EPP material. The EPP bathroom product body is one of a toilet, urinal, countertop basin and bathtub. The EPP bathroom product body is a one-piece molded structure with honeycomb reinforcing ribs inside and a waterproof surface layer on the surface.

[0011] Furthermore, the waterproof surface layer is a water-based fluorocarbon coating, an organosilicon-modified acrylic coating, a hydrophobic nano-silica coating, or a nano-scale titanium dioxide coating.

[0012] Furthermore, a primer layer is provided between the EPP bathroom product body and the waterproof surface layer, which can improve the adhesion of the waterproof surface layer to the EPP bathroom product body.

[0013] Furthermore, the primer layer is a chlorinated polypropylene primer.

[0014] The beneficial effects of this utility model are: 1. It is made of EPP material with a density ≤0.8g / cm³. 31. Compared to ceramic products, it is 60% lighter, making it easier to transport and install, and lower in cost; 2. The main body of EPP bathroom products is a one-piece molded structure with internal honeycomb reinforcing ribs to improve compressive strength; 3. It shows no cracks in the drop ball impact test (1kg steel ball from a height of 1m), has good impact resistance, is not easily broken, and will not break in ordinary collisions; the material is 100% recyclable, reducing production energy consumption by 40%, making it energy-saving and environmentally friendly; 4. The main body of EPP bathroom products has a certain degree of elasticity and cushioning, so even if the elderly and children bump into it, it will generally not cause safety hazards; 5. It is not too cold when used in winter, providing a good user experience; 6. It is simple to manufacture. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 A sectional view along line AA. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figure 1-2 An EPP bathroom product includes an EPP bathroom product body made of EPP material. The EPP bathroom product body is one of a toilet 1, a urinal, a countertop basin, and a bathtub. The EPP bathroom product body is a one-piece molded structure with honeycomb reinforcing ribs 2 inside and a waterproof surface layer on the surface.

[0020] The waterproof surface layer is a water-based fluorocarbon coating, an organosilicon-modified acrylic coating, a hydrophobic nano-silica coating, or a nano-scale titanium dioxide coating.

[0021] Before the waterproof topcoat is applied, the bathroom fixtures undergo surface pretreatment to improve the adhesion of the hydrophobic coating to the surface of the fixtures. Surface pretreatment includes corona treatment, flame treatment, and spraying a chemical primer. The corona treatment involves oxidizing the EPP surface through electrical discharge to increase polar groups; the flame treatment involves brief flame exposure to activate the surface; and the chemical primer is a chlorinated polypropylene primer.

[0022] EPP bathroom product body, comprising the following components by weight percentage:

[0023] EPP granules 60%-80%;

[0024] Reinforcing fibers: 10%-30%;

[0025] Flame retardant 5%-10%;

[0026] Antioxidants 1%-3%.

[0027] The reinforcing fiber is carbon fiber or glass fiber; the flame retardant is at least one of inorganic hydroxide flame retardants, halogenated flame retardants, phosphorus-based flame retardants, nitrogen-based flame retardants, silicon-based flame retardants, bromine-antimony synergistic flame retardants, and halogen-free flame retardants.

[0028] EPP (expanded polypropylene) materials mainly achieve their flame-retardant properties by adding flame retardants. The following is an explanation of the selection of flame-retardant systems:

[0029] Inorganic hydroxides

[0030] Magnesium hydroxide / aluminum hydroxide: By decomposing and absorbing heat, the surface temperature of the material is reduced, and a protective layer of magnesium oxide / aluminum oxide is generated to isolate oxygen.

[0031] Phosphorus-nitrogen synergistic system

[0032] Phosphorus-based flame retardants (red phosphorus masterbatch) and nitrogen-based flame retardants (MCA / MA) work synergistically to generate an expanded char layer during combustion, which insulates against heat and oxygen, thus possessing both gas-phase and condensed-phase flame retardant mechanisms.

[0033] Silicon-based flame retardants

[0034] It forms a ceramic protective layer, which has excellent weather resistance and thermal stability.

[0035] New environmental protection system

[0036] Halogen-free flame retardants (such as organosilicon-modified systems) are gradually replacing traditional halogen-based systems.

[0037] The following is an explanation of antioxidants used in EPP (expanded polypropylene):

[0038] I. Primary antioxidant (free radical scavenging type)

[0039] Hindered phenols

[0040] LENOX 1010: Pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid], suitable for high-temperature processing environments (≤220℃).

[0041] LENOX 1076: β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, which can enhance the antioxidant synergistic effect when used in conjunction with phosphites.

[0042] Aromatic amines

[0043] LENOX 1098: N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexamethylenediamine, suitable for EPP products with high weather resistance requirements.

[0044] II. Auxiliary antioxidants (hydroperoxide decomposition type)

[0045] Phosphates

[0046] LENOX 168: Tris(2,4-di-tert-butylphenyl) phosphite, which can inhibit the breakage of PP molecular chains during processing;

[0047] LENOX 626: Bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite, suitable for EPP foaming process (160-200℃).

[0048] Thioesters

[0049] DLTDP (dilauryl thiodipropionate): When combined with phenolic antioxidants, it can extend the outdoor service life of EPP.

[0050] III. Compound Antioxidants

[0051] Antioxidant B215

[0052] It is a compound of LENOX 1076 (phenol) and LENOX 168 (phosphite) in a 1:2 ratio.

[0053] Masterbatch type EP-V701

[0054] It has a nitrogen-phosphorus composite structure, which has both UV protection and anti-aging functions.

[0055] The preparation method of the EPP sanitary ware products described above includes the following steps:

[0056] a. Mixed foaming: EPP granules are mixed with reinforcing fibers, flame retardants, and antioxidants, and foaming agent is added for foaming;

[0057] b. Compression molding: Inject the above-mixed foamed material into a mold and mold it at a temperature of 120-150℃ and a pressure of 8-12MPa.

[0058] c. Surface treatment: Spray a waterproof coating onto the surface of the molded product.

[0059] Furthermore, before spraying the waterproof coating, the molded product undergoes surface pretreatment, which can be one of the following:

[0060] Corona treatment, through discharge treatment, oxidizes the EPP surface and increases polar groups;

[0061] Flame treatment, brief flame exposure to activate the surface;

[0062] Apply a chemical primer and a chlorinated polypropylene primer.

[0063] This utility model has the following advantages: 1. It is made of EPP material with a density ≤0.8g / cm³. 3 1. Compared to ceramic products, it is 60% lighter, making it easier to transport and install, and lower in cost; 2. The main body of EPP bathroom products is a one-piece molded structure with internal honeycomb reinforcing ribs to improve compressive strength; 3. It shows no cracks in the drop ball impact test (1kg steel ball from a height of 1m), has good impact resistance, is not easily broken, and will not break in ordinary collisions; the material is 100% recyclable, reducing production energy consumption by 40%, making it energy-saving and environmentally friendly; 4. The main body of EPP bathroom products has a certain degree of elasticity and cushioning, so even if the elderly and children bump into it, it will generally not cause safety hazards; 5. It is not too cold when used in winter, providing a good user experience.

[0064] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An EPP bathroom product, characterized in that: The bathroom product body is made of EPP material. The EPP bathroom product body is one of the following: toilet, urinal, countertop basin and bathtub. The EPP bathroom product body is a one-piece molded structure with honeycomb reinforcing ribs inside and a waterproof surface layer on the surface.

2. The EPP bathroom product as described in claim 1, characterized in that: The waterproof surface layer is a water-based fluorocarbon coating, an organosilicon-modified acrylic coating, a hydrophobic nano-silica coating, or a nano-scale titanium dioxide coating.

3. The EPP bathroom product as described in claim 1, characterized in that: A primer layer is also provided between the main body of the EPP bathroom product and the waterproof surface layer, which can improve the adhesion of the waterproof surface layer to the main body of the EPP bathroom product.

4. The EPP bathroom product as described in claim 3, characterized in that: The primer layer is a chlorinated polypropylene primer.

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