How to use glue is more environmentally friendly?

Glue, as the main harmful substance in furniture, should be the most eye-catching factor when we choose furniture. Of course, if you want to use glue in the decoration process, it is still difficult to achieve in the current market situation. What we can do is to choose boards with less glue as far as possible to reduce the harm of glue. Glue for density board, particleboard and joinery board: its main component is urea-formaldehyde resin, which is a colorless and transparent adhesive synthesized by condensation polymerization of urea, formaldehyde and Jiao Debao under the action of catalyst and then curing agent or auxiliary agent. Please remember the reference price of E0 grade glue: 4800 yuan a ton. They are classified into E0, E 1, E2, etc. Because the medium density fiberboard is produced by mixing a large amount of glue with sawdust, soil and other solid substances under high pressure, the dosage is large and the medium density is relatively high. We calculate according to the specific gravity of water, roughly according to one cubic meter and one ton. The size of the standard board is 122 cm× 244 cm, and the thickness is 0.0 18 cm. About 19 sheets are a cube. The price of MDF is a 40 yuan, and the price of each cube is about 760 yuan. I wonder how much the cheapest urea-formaldehyde resin costs a ton. The amount of formaldehyde glue contained in MDF per cubic meter is generally 400-500 kg, which is about 20-25%. According to the ultra-low price per catty 1 yuan, only the price of glue is close to the sales price of finished products. Therefore, under the constraint of terminal price, the price of glue will be controlled very low. And the chemical industry, is the most pay attention to a penny, I believe that such cost control, is not environmentally friendly. Do you believe in E0 grade of low density board? I don't believe it anyway. The price of high-density board, that is, Austrian pine board, is generally 2500 yuan per cubic meter, which is 100 yuan per board according to the standard board calculation. The environmental protection of high-density board will be much higher. First, the content of wood fiber will increase. Second, the amount of glue will be much less, and the market positioning price of the terminal will be higher. Therefore, environmental protection glue with higher environmental protection can be used. Particleboard, the principle is equivalent to high-density board, because the particles are larger, the amount of glue used will be greatly reduced, so compared with low-density board, the degree of environmental protection will be much higher. 2. Glue for plywood and multilayer board: plywood consumes 60 kg to 130 kg per cubic meter, with a small amount. The reason why plywood is said twice is because plywood is actually a relatively environmentally friendly material. Plywood is a multi-layer board made of laminated wood, which is widely used abroad. However, many plywood in China are imported from abroad to reduce costs and use cheap ordinary glue. Therefore, it is necessary to treat them separately. Some qualified plywood uses high E0 glue, and the dosage is very small, so the environmental protection index is relatively high. 3, joinery board glue: a good joinery board is closer to solid wood, with wooden blocks as keels inside and plywood on both sides, with a large amount of wood and a small amount of glue, which is equivalent to a multilayer board. If it is a poor joiner with low price, it will definitely reduce the use of wood and use low-cost glue. 4, solid wood finger joint board glue. Finger joint plate is the most environmentally friendly decorative or furniture plate among the industrialized plates encountered at present. It is composed of small pieces of pure solid wood board, and the middle is glued by two-component splicing. Needless to say, there is too much environmental protection, and the amount of glue is very small. Glue is also a very environmentally friendly glue. 5. Glue is used for direct splicing of solid wood. One of the most widely used in the field of woodworking, we commonly call it white latex. White latex is widely used in decoration and furniture, and can be seen everywhere. Generally, white latex is also used as an adhesive for solid wood veneer, which is mostly used for decoration and furniture. It is a very environmentally friendly glue, which is quite different from universal glue and brothers, and belongs to a smaller application range. All furniture, including pure solid wood, should use white latex or splicing glue. Zero-glue furniture is almost non-existent, unless it is some simple lath combination furniture.