2results about How to "No complicated process" patented technology

The utility model provides modular assembly type road sound insulation screen frame relates to road sound insulation screen technical field, including bottom plate, the four corner of bottom plate installs the positioning pin, the top of bottom plate installs lower mounting seat, the both sides inside lower mounting seat installs lower cross bar, the top inside lower mounting seat installs vertical pole, the top of vertical pole installs upper mounting seat, the both sides inside upper mounting seat installs upper cross bar, the inside of lower mounting seat is provided with connecting mechanism, through being provided with connecting mechanism in the inside of lower mounting seat, the mutual match between the positioning hole, the locating piece, the screw groove, the threaded rod and the rotating block of utilizing connecting mechanism, can carry out convenient disassembly and installation handling to vertical pole, can realize module standardization quick butt joint, need not complex procedure, greatly shorten single section assembly time, can replace module alone in local damage, reduce maintenance cost, also promote transportation space utilization, save engineering cost.

The invention relates to the technical field of high polymer materials, and particularly discloses an organic-inorganic composite ultraviolet absorbent, an anti-ultraviolet aging polyethylene plate and a preparation method and application thereof. Firstly, an inorganic ultraviolet absorbent rare earth cerate A2Ce2O7 (A = La, Gd or Y) is prepared by adopting a sol-gel method, and the inorganic ultraviolet absorbent rare earth cerate A2Ce2O7 has smaller forbidden bandwidth, can absorb light with shorter wavelength and has excellent ultraviolet absorption performance; secondly, the benzophenone compound is chemically modified by adopting organic amine hydrochloride, so that the stability of the benzophenone compound and the compatibility of the benzophenone compound and matrix resin are improved; and finally, the organic-inorganic composite ultraviolet absorbent is prepared through self-assembly, the rare earth cerate and the benzophenone hydrochloride generate a synergistic effect, so that the organic-inorganic composite ultraviolet absorbent has excellent absorption performance in an ultraviolet region, and the ultraviolet aging resistance of the organic resin can be remarkably improved by adding the organic-inorganic composite ultraviolet absorbent into the organic resin. The method plays a very important role in expanding the application field of organic resin.