Overview of Building Decoration Materials for Clean Rooms

Jun. 12, 2020

The construction and decoration engineering of clean rooms mainly refers to the ground and floor decoration engineering, plastering engineering, door and window engineering, suspended ceiling engineering, partition engineering, paint engineering, brushing engineering, crevices, etc Sealing of gaps between various pipelines, lighting fixtures, purification air-conditioning equipment, process equipment, etc. Clean room doors manufacturers introduce to you:

The importance of clean room architectural decoration is mainly manifested in the following two aspects:

(1) Impact on comprehensive performance: The clean room requires that the material does not produce dust, the structure does not accumulate dust, and the seal is tight and impervious to dust. Therefore, the decoration of the clean room will directly clean the effect.

(2) The impact on construction cost: Compared with general office buildings, clean rooms are high-cost buildings.

1. General requirements

(1) The surface is smooth;

(2) The surface has wear resistance;

(3) Good thermal insulation;

(4) It is not easy to generate static electricity;

(5) No moisture absorption, no moisture permeability;

(6) Good sound absorption;

(7) Easy to process;

(8) Dust is not easy to adhere to the surface;

(9) It is easy to remove the attached dust;

(10) The price is cheap.

2. Decoration of the ground

(1) General requirements

① Wear resistance;

②Corrosion resistance (acid, alkali, medicine);

③ Anti-static;

④ Anti-skid;

⑤It can be processed without seams;

⑥ Easy to clean.

(2) Type

① Double-layer floor: It is the floor of a typical vertical unidirectional flow clean room. The overall characteristics are: ground return air, good breathability, high cost, and poor elasticity.

② Terrazzo ground. The overall characteristics are: smooth, not easy to dust, good integrity, washable, anti-static, inelastic.

③ Paint the ground. The overall characteristics are: the advantages of terrazzo, wear resistance, good sealing, elasticity, and complex construction.

Material: It is made of epoxy resin, polyester resin and polyurethane resin by adding pigment and hardener. The cement grade of cement mortar base is not less than 425 #.

④ Coil plate ground. The overall characteristics are: smooth, wear-resistant, slightly elastic, not easy to dust, easy to clean, simple construction, easy to generate static electricity, easy to aging due to ultraviolet radiation, because it is different from the concrete expansion system, it is easy to shell from a large area.

⑤Acid-resistant magnetic board ground

The overall characteristics are: corrosion resistance, but the quality is brittle and cannot withstand impact. The construction is more complicated and the cost is high. It is suitable for sections with corrosion resistance requirements and should be surrounded by water lines.

⑥FRP floor:

The overall characteristics are: corrosion resistance, good integrity, but the expansion coefficient is different from the base, so it is suitable for small area use, and use fireproof varieties.

3. Cleanroom wall panels

(1) General requirements

① Not easy to be dirty and easy to clean;

② The surface is smooth;

③Don't produce dust once the surface is peeled or damaged;

④Shock resistance;

⑤The corners can be treated with arc materials or sealing materials.

(2) Type

① Advanced plastering. The plastering of the clean room wall must be advanced plastering, which is characterized by finding the corners of the yin and yang corners, setting standard bars, leveling in layers, trimming the surface, and calendering.

② Latex paint. The characteristics are: smooth, no flaking, cheap, and can not be cleaned.

③ Epoxy resin paint, synthetic resin paint. Smooth, no flaking, can be cleaned, corrosion resistance, high construction requirements.

④ Anti-mildew coating. The overall characteristics are: smooth, no flaking, can be cleaned, and corrosion-resistant.

⑤ Porcelain plates. The characteristics are: smooth, corrosion-resistant, easy to clean, many seams, difficult to lay flat, and high construction requirements.

⑥Metal plate. The general characteristics are: corrosion resistance, fire resistance, no static, smooth, easy to wash, and high price.

Material: Epoxy composite aluminum plate, anti-rust aluminum plate, stainless steel plate, color steel plate. The substrate of the color steel plate is galvanized steel, the coating film lining is alkyd resin, and the coating film cover is thermosetting acrylic resin or epoxy resin or polyester resin.

⑦Assembled clean room wall panel.

The overall feature is: the assembly-type clean room is a form of clean room widely used today, especially suitable for rebuilding occasions. The characteristics of its siding vary from material to material. In addition to the characteristics of metal-type siding, the double-wall siding also has the characteristics of heat insulation, which is suitable for the occasions with air conditioning, especially constant temperature requirements. The double-filled siding has high strength.

Material: The siding is composed of face material and core material. It should be selected according to the design object.

The surface material includes plastic-coated wooden boards, aluminum alloy plates, steel plates, colored steel plates, etc.

The core materials are as follows:

a. Rigid polyurethane foam: It can foam in the wall and has excellent thermal insulation performance. The halogenated organic phosphorus compound can be used as a flame retardant. Due to different mixing methods, it can be divided into: flammable grade, flame retardant grade, and flame retardant grade.

b. Asbestos calcium carbonate: Light calcium carbonate is the main raw material, mixed with inorganic fiber and refractory reinforcement to make it foam, and molded with a small amount of polyvinyl chloride resin as a binder. It has good fire resistance and belongs to a quasi-non-combustible board.

c. Sandwiched polystyrene board: The polystyrene board used for heat insulation is sandwiched between two steel plates by glue and pressure, and irritating gas will be generated when burning. Places with high fire protection requirements should not be used in large quantities.

d. Rock wool board: the rock wool is sandwiched between two steel plates, suitable for occasions with high fire requirements. But if the board needs to bear weight, it needs to be lined with gypsum board, otherwise it is easy to deform.

e. Paper (aluminum) honeycomb: sandwich the paper (aluminum) honeycomb between two steel plates. High strength and good fireproof performance of aluminum honeycomb.

4. Suspended ceiling

(1) General requirements

The ceiling frame is light in importance, good in rigidity and convenient in construction.

The ceiling cover panel is subject to less artificial friction, and is more affected by vibrations such as the air duct on the ceiling, so it is more important to control the vibration shedding than the hard surface of the material.

(2) Type

Suspended ceiling skeleton: light steel keel. The characteristic is light weight, less steel, seam treatment should be cautious, but it is difficult to handle, can not be used as a temporary horse and supporting heavy objects, troublesome maintenance.

Steel keel. The feature is that it can adapt to the layout of the air supply port and the lamp hole, but the amount of steel is large.

Aluminum alloy keel. It is characterized by its lightest weight and careful handling of seams, but it is difficult to get on, and it can not be used as a temporary horse and supporting heavy objects, which is troublesome to overhaul.

Cover panels are: most of the materials used for walls can be used as ceiling cover panel materials, in addition, colored plastic plates are also better cover panel materials.

5. Sealing caulking material

(1) General requirements

①Good sealing performance and certain elasticity;

② Not easy to age;

③ Easy to solidify and solidify;

④ The material should be single-component type as much as possible;

⑤Easy to construct;

⑥ Has a certain adhesion;

⑦ Non-toxic, tasteless, color appearance and decoration are coordinated.

(2) Type

There are many types of silicone, the main ones are:

① Silicone rubber. The overall characteristics are: a wide range of temperature adaptation, good drug resistance and oil resistance, but not NaOH resistance, and sometimes mildew occurs. The material is a semi-inorganic polymer rubber-like elastic material mainly composed of a siloxane structure.

② Polyurethane. General characteristics: high hardness, good elasticity, good low temperature performance, oil and ozone resistance, poor water resistance.

Material: The product of polyisocyanate, alcohols and ammonium with active hydrogen reacted by curing agent.

③Rubber

General characteristics: good elasticity, chemical resistance, water resistance, oil resistance and durability.

Material: Synthetic rubber (such as nitrile rubber).

6. Special requirements

1) The moisture content of the wood used in the clean room should not be greater than 16%, and it should not be used exposed. Due to the large number of air changes in the clean room and low relative humidity, if a large amount of wood is used, it is easy to dry, crack, deform, loose, and generate dust. Even if it is used, it must be used locally and must be treated with anti-corrosion and moisture-proof treatment.

(2) When the clean room needs gypsum board, the waterproof gypsum board must be used. For the biological clean room, because the water is frequently scrubbed and rinsed with disinfectant, even the waterproof gypsum board must be deformed by moisture and not resistant to washing. Gypsum board should not be used as a covering material.