4results about How to "Reduce formaldehyde content" patented technology

The invention relates to the field of bamboo processing, and particularly discloses a bamboo board production method which comprises the steps that S1, bamboo processing waste is dried, smashed and then sieved, and smashed bamboo particles are obtained; s2, the crushed bamboo particles are taken and added into a bamboo adhesive, gypsum powder and water to be evenly mixed, and then the mixture is put into a mold; and S3, the mold is put into a carbonization furnace to be carbonized, pressing is conducted immediately after carbonization is finished, and the high-quality plate is obtained. The bamboo waste comprises leftover materials, leftovers and bamboo tips left in the processing process of bamboo products. The method disclosed by the invention is simple to operate, the used raw materials are low in price, and the method is suitable for process production and has popularization prospects. The bamboo board prepared by the invention is compact in structure, high in strength, bright in color and low in formaldehyde content, and is a bamboo artificial board with extremely high quality.

The application discloses a vehicle formaldehyde monitoring method, a vehicle formaldehyde monitoring device, an electronic device, a storage medium and a vehicle. The method comprises the following steps: acquiring vehicle seat pressure detection information; generating vehicle seat material extrusion state information according to the vehicle seat pressure detection information; acquiring vehicle seat formaldehyde detection information; obtaining fluctuation information of formaldehyde released under the vehicle seat material extrusion state according to the vehicle seat material extrusion state information and the vehicle seat formaldehyde detection information; and evaluating the vehicle formaldehyde release state according to the fluctuation information of formaldehyde released under the vehicle seat material extrusion state. Through the above scheme, the formaldehyde release fluctuation generated by the extrusion of the vehicle seat when being sat on is detected, the vehicle formaldehyde release state is evaluated, and the characteristics of the vehicle seat in releasing and absorbing formaldehyde are considered in the formaldehyde detection method. Therefore, the attenuation degree of formaldehyde in the vehicle cabin can be indirectly learned in a shorter time.

The utility model discloses a kind of connecting structure for wooden furniture, it is related to furniture technical field.The utility model includes desktop, fixed groove is opened in the periphery of desktop, fixed groove inside is movably connected with fixed block;Fixed block side is fixed with connecting plate, connecting plate side is fixed with table leg;Fixed block side is opened with first positioning slot, desktop side surface is opened with second positioning slot;First positioning slot and second positioning slot inside are movably connected with positioning block;Second positioning slot side is opened with placing groove, placing groove and connecting plate bottom are opened with adjusting groove;Adjusting groove inside is slidably connected with handle, handle side is fixed with push plate.The utility model is through the effect of table leg, the device is through the realizable assembly connection of desktop and table leg, compared with traditional connection mode, without using screw, nail and other metal connecting piece, avoid in wood surface punching or exposed metal component, and without glue bonding, reduce the formaldehyde content of the device.

The invention relates to polyvinyl alcohol sponge with low formaldehyde content as well as a preparation method and application of the polyvinyl alcohol sponge. Amino and hydroxyl co-grafted hydroxyapatite is added into preparation raw materials of the polyvinyl alcohol sponge. Formaldehyde molecules can be adsorbed to the surface of hydroxyapatite through acting force between amino grafted on the surface of hydroxyapatite and formaldehyde molecules, and primary amine and formaldehyde are converted into relatively stable methylene imine through amination reaction of formaldehyde under a heating condition. Hydroxyl grafted on the surface of hydroxyapatite is easier to participate in cross-linking reaction of polyvinyl alcohol, so that nano-hydroxyapatite can be uniformly and stably dispersed in polyvinyl alcohol sponge, the catalytic performance of nano-sized hydroxyapatite is improved, and loss of hydroxyapatite in the cleaning process can be effectively avoided. The polyvinyl alcohol sponge disclosed by the invention has excellent mechanical properties and relatively low formaldehyde content, and is suitable for preparing a medical nasal cavity filling hemostatic material.