Among them, TPU and other polyurethane products can give full play to their unique advantages and have been used in a variety of automotive body parts, including car seats, cushions, headrest, floor mats, dashboards, sunshades, doors, ceiling linings and other internal parts as well as sound insulation and noise reduction materials, sealing materials and so on.
A part of the diaphragm is coated with a transparent reflective film, and the image and data on the dashboard transmitted from the projector can be displayed on the diaphragm as needed, which is convenient for the driver to observe, and the driver does not need to look down at the instrument when driving. The image shows that if the intelligent glass cooperates with the infrared image display system, the driver can see clearly the objects around the 2km in front of him on a foggy day. The photoelectric sunshade roof glass can automatically absorb, accumulate and use solar energy to drive the car fan when the car is driving or parking, and it can also continuously recharge the car battery.
Automotive interior materials include single materials or laminated composites used in automotive interiors, such as cushions, seats, seat covers, safety belts, headrest, handrails, movable folding of all decorative linings on the roof (including door panels, side panels, rear panels, roof linings, instrument panels, instrument panels, indoor shelves or rear window panels, curtains, floor coverings, sunshades, wheels, covers, engine covers and any other indoor organic materials It includes materials such as packing buffers that absorb collision energy during a collision. The effect of flame retardant treated automobile sound absorbing cotton can not only absorb sound and insulation, but also play an important role in flame retardancy of the whole vehicle.
1. Greenhouse management should do a good job in greenhouse reinforcement and snow removal. Remove the snow from the roof, increase the light transmission, effectively prevent the snow from crushing the greenhouse, and reduce the freezing low temperature after melting snow. When clearing the snow, you should gently pick and push to avoid piercing the greenhouse film, and carry the snow out of the nursery. The greenhouse that is crushed and deformed should be strengthened and repaired immediately, and if it cannot be repaired, the plants in the shed should be transferred in time, or covered with film, grass curtain or sunshade net to improve the heat preservation effect; it is necessary to do a good job of anti-freezing after snow. There will be frost damage weather after snow. the intima of the greenhouse should be added in all kinds of greenhouses to form internal and external two-layer film for heat preservation, and heating should be carried out in the greenhouse if possible.
Selecting suitable greenhouse system materials according to local conditions the greenhouse is composed of various systems and materials working together. The standard planting greenhouse system includes external sunshade system, internal sunshade heat preservation system, top natural ventilation system, wall natural ventilation system, fan water curtain forced ventilation system, high waist spray cooling system, heating system, internal climate circulation system, plant root climate circulation system, carbon dioxide generation and supplement system, planting trough system, water and fertilizer integration system and so on.
Scope of application: polyurethane foam is widely used in automotive interior decoration and vibration absorbing parts, such as coating materials, polyurethane rigid plastic panels, polyurethane elastomers, seat soft foam materials, decorative parts, sofa leather, roof accessories; the most widely used is a variety of soft and hard polyurethane foam materials, which have vibration isolation, sound insulation, noise reduction, thermal insulation and thermal insulation. PU can also be made into automotive polyurethane coatings, binders, sealants and so on. The PU representative parts on the car are dashboard, rearview mirror, bumper, seat cushion, headrest, steering wheel, instrument panel anti-vibration pad, pillar decoration, front roof lining, window frame, ceiling and side roof frame decoration, door liner, sunshade panel, rear roof frame decoration and so on.
First of all, car shading can effectively reduce the temperature inside the car. Sunshade is a combination of multi-layer bubble film and aluminum foil, which belongs to a kind of plastic products. Aluminum foil has the ability to reflect light, thus reducing thermal radiation and low thermal radiation conductivity. When the sun shines on the sunshade, some of the heat will be blocked and the ultraviolet light will be reflected by the aluminum foil.
Just like a new house needs to start with wall painting, painting and adding furniture in a rough house, so does a new car. In the production process, various parts such as dashboards, carpets, doors and seats, and small parts such as seat belts and sunshades need to be installed, while materials such as polyurethane (PU), organic solvents and auxiliaries are very common in the materials of modern automobile parts. Formaldehyde, acetaldehyde and other VOCs are easily volatilized into the air. At present, most of the VOCs in cars come from dashboard assembly, wire harness assembly and column assembly. With the increase of temperature, the volatilization rate of VOCs will increase in proportion.
