Silica gel lens material and LED lamp with silica gel lens material
A silicone lens and raw material technology, applied in the parts of lighting devices, semiconductor devices of light-emitting elements, lighting and heating equipment, etc., can solve the problems of easy yellowing, fogging, affecting light transmission efficiency, etc., and achieve excellent anti-fogging. Performance, the effect of good refractive index
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Embodiment 1
[0032] The preparation of embodiment 1 silica gel lens material
[0033] Composition by weight ratio of raw materials: 100 parts of phenyl vinyl silicone resin; 80 parts of phenyl hydrogen-containing silicone resin; 8 parts of crosslinking agent; 0.5 parts of inhibitor; 2 parts of antifogging agent; the crosslinking agent is DCP crosslinking agent; the inhibitor is 1-ethynyl-1-cyclohexanol.
[0034] The antifogging agent is prepared by the following method: (1) dissolving chitosan in N,N-dimethylformamide, then adding benzoyl chloride and catalyst methanesulfonic acid, reacting at 130°C for 8h, Obtain the chitosan modified by benzoyl chloride; (2) add toluene after the chitosan modified by benzoyl chloride prepared in step (1) is mixed with polyethylene glycol 2000, and react at 70°C for 8h to obtain Benzoyl chloride / polyethylene glycol modified chitosan, i.e. described anti-fogging agent; Chitosan, benzoyl chloride, catalyst methanesulfonic acid and N,N-dimethylformamide in ...
Embodiment 2
[0037] Embodiment 2 Preparation of silica gel lens material
[0038] Composition by weight ratio of raw materials: 80 parts of phenyl vinyl silicone resin; 100 parts of phenyl hydrogen-containing silicone resin; 5 parts of crosslinking agent; 1 part of inhibitor; 3 parts of antifogging agent; the crosslinking agent is DCP crosslinking agent; the inhibitor is 1-ethynyl-1-cyclohexanol.
[0039] The antifogging agent is prepared by the following method: (1) dissolving chitosan in N,N-dimethylformamide, then adding benzoyl chloride and catalyst methanesulfonic acid, reacting at 130°C for 8h, Obtain the chitosan modified by benzoyl chloride; (2) add toluene after the chitosan modified by benzoyl chloride prepared in step (1) is mixed with polyethylene glycol 2000, and react at 70°C for 8h to obtain Benzoyl chloride / polyethylene glycol modified chitosan, i.e. described anti-fogging agent; Chitosan, benzoyl chloride, catalyst methanesulfonic acid and N,N-dimethylformamide in step (1...
Embodiment 3
[0042] Embodiment 3 Preparation of silica gel lens material
[0043] Composition by weight ratio of raw materials: 120 parts of phenyl vinyl silicone resin; 70 parts of phenyl hydrogen-containing silicone resin; 10 parts of crosslinking agent; 0.5 part of inhibitor; 1 part of antifogging agent; the crosslinking agent is DCP crosslinking agent; the inhibitor is 1-ethynyl-1-cyclohexanol.
[0044] The antifogging agent is prepared by the following method: (1) dissolving chitosan in N,N-dimethylformamide, then adding benzoyl chloride and catalyst methanesulfonic acid, reacting at 130°C for 8h, Obtain the chitosan modified by benzoyl chloride; (2) add toluene after the chitosan modified by benzoyl chloride prepared in step (1) is mixed with polyethylene glycol 2000, and react at 70°C for 8h to obtain Benzoyl chloride / polyethylene glycol modified chitosan, i.e. described anti-fogging agent; Chitosan, benzoyl chloride, catalyst methanesulfonic acid and N,N-dimethylformamide in step ...
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