Plasterboard of face no

                                              Plasterboard of face no

Introduction:
The rapid development of China's economy requires a large supply of wood and forest products, and the wood gap is large. Therefore, in addition to a large number of imported wood raw materials and forest products, vigorously developing "mineral instead of wood" materials must be the fundamental way to solve the wood shortage in all countries in the world, especially in China. Among all the materials replacing wood with mineral, the advanced experience of other countries in the world has proved that gypsum is the most abundant, cheapest and superior wood substitute material. Paperless gypsum board is a kind of wood substitute board with superior performance. It is mainly used as wallboard, formwork, flooring, fireproof board and other wood substitute fields. It can also be used as electrical insulation board. After special treatment, it can further produce many other boards, as well as furniture and other products. It is widely used.
Technical performance:
1. The paperless gypsum board is not covered by the protective board, which can greatly save the consumption of protective paper and wood pulp, save the cost, and completely overcome the problem of paper peeling and damage of the paperless gypsum board. 2. The paperless gypsum board is produced with high-strength gypsum powder, which can give better play to the superior performance of gypsum cementitious material. The strength and various properties of the board are much better than that of the paper gypsum board, especially overcoming the disadvantage of low transverse fracture load of the paper gypsum board. 3. The comprehensive performance of the product has been greatly improved. The mechanical properties, nail holding force, fire protection performance, sound insulation performance, hanging performance, crack resistance and shock resistance, post-processing performance and post-processing performance of the product are unmatched by paper gypsum board. 4. The product has the advantages of less material consumption, low cost, high cost performance and good economic benefits.
Service content:
1. Undertake the manufacturing task of a full set of technical equipment, or it can be manufactured by designated manufacturers. 2. Provide engineering design, installation, commissioning and technical guidance of the whole project until qualified products are produced. 3. Provide product post-processing guidance and relevant technical consulting services. Meisui brand paperless gypsum board is a national invention patent green environmental protection product with a specification of 1220 × one thousand nine hundred and eighty × 12mm、1220 × one thousand nine hundred and eighty × 9mm、1220 × two thousand four hundred and forty × 12mm (can be customized according to user needs), mainly used as indoor non load-bearing wall and ceiling. This product not only has light weight, high strength, moisture resistance and fire prevention, but also has the functions of sound insulation, heat insulation and adjusting indoor temperature and humidity. The product can be sawed, nailed and planed, with simple installation and convenient maintenance. Compared with the national standard GB / T ************* gypsum board, the weight per unit area is reduced by 7 ~ 8% and the strength is increased by 80%. It is a non combustible class a material. Its water resistance and fire resistance are much better than water-resistant gypsum board and fire-resistant gypsum board, and its durability is better than gypsum board. This product has won gold awards at home and abroad for many times, selling well all over the country and overseas.
Construction advantages:
1. The construction is fast, concise and saves working procedures: after the joint is bonded with "Yougao" brand joint paste and joint belt, the wallpaper can be pasted or the paint can be sprayed directly, and the surface can also be puttying; 2. Good machinability: bricks, nails, hole digging, cutting and other processes can be processed arbitrarily according to the construction needs; 3. Strong adaptability to the environment: it can be directly used in the decoration works from the basement to the humid area, and the plate body will not be deformed; 4. No cracking at the joint and no bulge on the surface: due to the lack of paper, the joint will not crack due to the change of air humidity, and the surface will not bulge due to water immersion.
Performance characteristics of paperless gypsum board:
1. Humidity regulation performance: because the paperless gypsum board cancels the face protection paper, the gypsum board is in direct contact with the air, giving full play to the "self breathing" function of gypsum products, which can absorb moisture in wet conditions and release moisture in dry conditions, so as to give full play to the natural humidity regulation function while keeping the intensity unchanged as far as possible. 2 In terms of strength performance: according to the requirements of gb977-88 excellent product standard, the longitudinal and transverse average value of paperless gypsum board is higher than that of paperboard; The vertical and horizontal fracture load values are equal, which can reach 700-800 newtons, which is higher than the vertical and horizontal fracture load value of gypsum board. In addition, the steel ball impact test strength of gypsum board is 5 Newtons per square meter, while that of gypsum board without paper is 6.5 Newtons per square meter; The screw gripping force of paper gypsum board is only 100 Newtons per square millimeter, while that of paperless gypsum board is 600 Newtons per square millimeter. Therefore, paperless gypsum board has the advantages of nailing and hanging things. 3. In terms of fire protection performance: because the paperless gypsum board cancels the face protection paper and does not mix organic matter, it is a completely incombustible product, which meets the incombustible grade A of gb5464-85. 4. Moisture resistance and water resistance: the moisture deflection of paperless gypsum board with a thickness of 10mm is only 27mm. If the paperless gypsum board is soaked in water for test, only the strength decreases slightly, but it can be restored after drying. Therefore, it is more appropriate to choose paperless gypsum board in the humid areas of southern China, because it can absorb the moisture in the air to the greatest extent under its constant state.
Comparison between non paper gypsum board and paper gypsum board:
① The compressive strength of paperless gypsum board is increased by more than 80%, which has superior physical and mechanical properties. ② Paperless gypsum board is a class a fireproof board, which can be used in high-rise buildings, office buildings, large comprehensive supermarkets, public entertainment places and other fire protection requirements. ③ The paperless gypsum board takes gypsum as the cementitious material, and the surface and bottom are gypsum based. The high-strength and water-resistant gypsum board is generated through the modified gypsum based. It can be installed in the wet place of kitchen and toilet without surface discoloration, bulging, falling off and so on. The surface can be directly pasted with porcelain plate or used as other decorative materials. The surface structure has high strength and diversified decoration. It is the most ideal high-grade interior partition wall and ceiling decoration material. Paperless gypsum board takes natural gypsum and chemical gypsum as cementitious materials. In particular, the state requires all power plants to desulfurize sulfur dioxide, which will produce a large amount of desulfurized gypsum from industrial waste residue, and the material of desulfurized gypsum is better than that of ordinary gypsum β Building gypsum, then the paperless gypsum board produced with industrial waste desulfurization gypsum as raw material belongs to the circular economy vigorously developed by the state, the state has strong policy support, and the products produced are also industries conducive to the sustainable development of mankind. Meisui [1] brand paperless gypsum board is a living environment conducive to human health and comfort. Paperless gypsum board does not contain any substances harmful to human health. It is a porous inorganic material with certain respiratory function. It has a certain regulating effect in case of rapid climate change and makes people feel more comfortable.
Performance inspection report of paperless gypsum board
Inspection item name and unit test method refer to standard inspection results 1. Weight per unit area, kg / m2, JC / T 799-1988 (1996) 8.4 2. Damp deflection, mm JC / T 799-1988 (1996) 2 3. Moisture content,% JC / T 799-1988 (1996) 0.2 4. Breaking load, n JC / T 799-1988 (1996) 512 5. Radionuclide limit qualified 6. Fire detection, incombustibility test method of building materials, class A1
Paperless gypsum board will replace paperboard:
Paperless gypsum board (referred to as fiber gypsum board) is a new type of building gypsum board with gypsum powder as the main raw material and various fibers (such as glass fiber, paper fiber, plant fiber, etc.) as the reinforcing material. This product does not need to use face protection paper, so it not only has the advantages of paper gypsum board, but also makes up for many shortcomings of paper gypsum board: 1. The impact resistance is doubled, and the distance between keels can be appropriately enlarged during partition, so as to reduce the consumption of keels and save materials and construction costs. 2. Due to the increase of apparent density of gypsum board, the strength is twice that of paper gypsum board, so that the fire prevention and moisture-proof performance are also improved accordingly, especially the nail holding force is strong, which makes the overall wall more firm. 3. Because the face protection paper is omitted, a series of disadvantages caused by paper are solved. For example, the shell is easy to fall off after decoration, the paper surface is damp for a short time, causing mildew, and a large area of mold blocks appear on the wall. 4. In view of the problem that the interface of paper gypsum board is easy to crack, the edge of non paper gypsum board adopts 20 ° inclined edge, and the interface is V-shaped. Through filling and bonding, the bonding area is increased and the problem of interface crack is solved. Paperless gypsum board also has considerable application flexibility and universality. In addition to partition ceiling, it can also be used as wallboard, tile, prefabricated board cladding, ceiling, floor, wrapped column and wall protection board. In the last century, foreign countries used it to replace wood boards, wrap various doors, and even make furniture. For example, the partition board of the train carriage and the isolation board of the ship not only save a lot of forest resources, but also better than the wood-based board, because the wood-based board uses a large amount of methanol adhesive, which causes serious indoor gas pollution. Because gypsum board is recognized as a green environmental protection material all over the world, it can be imagined that intelligent people will naturally choose gypsum board.