42results about How to "Excellent resistance to sulfuration" patented technology

The invention belongs to the technical field of metal material processing, and particularly relates to a silver-based alloy target material blank for vacuum magnetron sputtering and a preparation method as well as application thereof. The silver-based alloy target material blank comprises, by weight percentage, 98.26wt%-99.465wt% of metallic silver and 0.535wt%-1.74wt% of other alloying elements, wherein the other alloying elements comprise at least one of the following elements: copper, yttrium, nickel, cerium, zinc, aluminum, magnesium, neodymium, silicon and the like. According to different alloy proportions and the preparation method, the produced silver-based target material has excellent performances such as good vulcanization resistance and low resistivity, and the silver-based target material blank is applied to the vacuum magnetron sputtering after being processed.

Provided is a resin composition that is extremely useful as a sealant for an optical semiconductor (such as an LED product) having excellent pot life and sulfur resistance. The curable resin composition for sealing an optical semiconductor comprises a curing catalyst having a melting point between 40 and 200 DEG C and an epoxy resin and/or epoxy resin curing agent. Preferably the epoxy resin curing agent is, for instance, polyvalent carboxylic acid resin (A)obtained by addition reaction of a dual end-type carbinol-modified silicone oil represented by formula (1), a polyhydric alcohol compound having two or more hydroxyl groups per molecule, and a compound having one carboxylic anhydride group per molecule. In formula (1), R1 is an alkylene group, and the like, R2 is an alkyl group, and the like, and m is an average value and is between 1 and 100. The formula (1) is defined in the specification.

The invention relates to an LED packaging adhesive composition, which is prepared by mixing a component A and a component B according to a weight ratio of 1:1, wherein the component A comprises the following components in parts by weight: 50-60 parts of phenyl vinyl MQ silicon resin, 10-20 parts of methyl phenyl vinyl silicone oil and 0.1-0.3 part of an anti-poisoning platinum catalyst, and the component B comprises the following components in parts by weight: 50-70 parts of methyl phenyl hydrogen-containing silicone resin, 30-50 parts of methyl phenyl hydrogen-containing silicone oil and 0.1-0.3 part of an inhibitor.

The invention relates to a method for improving sulfuration resistant and UV resistant performances of an organosilicon material for LED packaging. The method comprises the following steps: cleaning the surface of an LED support; preparing a coating; uniformly mixing hydrogen silicone containing resin and a solvent, wherein the weight percentage of the hydrogen silicone containing resin is 20 wt% to 25 wt%; uniformly spraying the obtained coating to a chip surface; carrying out uniform electron beam irradiation on the obtained chip surface, so that the coating is cured to form a compact silicon dioxide structure; and then removing unnecessary coating, applying the organosilicon material for LED packaging, and carrying out curing molding. The method has the beneficial effects that a packaged LED prepared and obtained by using the method disclosed by the invention overcomes the disadvantages that a traditional organosilicon material is permeable for air and moisture after being packaged and a part of the traditional organosilicon material can penetrate through a packaging material under the effect of sulfurous gas, so that the sulfuration resistance is high; after long-term ultraviolet (UV) irradiation, the stability of luminous flux can also be maintained; and the caking property of a silver layer and a silica gel interface is good, so that silver sulfide is unlikely to generate.

The present invention is characterized in having a composition that consists of In and/or Sn in a range of 0.1 mass% to 1.5 mass% total and the balance Ag and unavoidable impurities and in that the arithmetic average surface roughness Ra of the sputtering surface of the target is not more than 7 mum after performing sputtering under conditions, wherein Ar gas pressure is 0.1 Pa, current density is1.5 W/cm2, and integrated power consumption is 0.01 kWh/cm2.

[Problem] To provide a laminated film having a layer that contains an infrared absorbent, wherein cracking and discoloration under highly humid environments subjected to the sun's rays are minimized, and having excellent resistance to sulfurization. [Solution] The present invention pertains to a laminated film comprising a substrate, and an infrared light absorbing layer that is disposed on one surface of the substrate and contains an infrared light absorbing agent, a resin and a sulfurization prevention agent; and having a film surface pH on the front surface on the opposite side of the infrared light absorbing layer to the substrate of at least 6.5.

The invention discloses a vulcanization-resistant conductor paste which is a paste with certain fluidity prepared by mixing noble metal powder, glass powder, acidized bismuthite, an inorganic additive and an organic carrier. The acidized bismuthite is added into the conductor paste, so that the performance of the conductor paste is ensured, the vulcanization resistance of the conductor paste is improved, the use reliability of the conductor paste in a sulfur-containing environment is ensured, and the use requirements of circuit products in the sulfur-containing environment can be met.

The invention discloses a 958 alloy for die casting and red silver jewelry and a processing technology thereof. The alloy comprises, by weight, 0.2-0.3% of C, 0.5-0.6% of B, 1.2-1.4% of Ba, 0.4-0.8% of Ti, 0.8-1.2 % of Mo, 0.3-0.5% of Sb, 95-96% of Ag, and the balance copper. A new material with red appearance is provided for the 958 silver alloy for the jewelry in China, and the material has an excellent die casting characteristic. The implementation and industrialization of the material can effectively promote the demands of product updating and industry upgrading in the jewelry industry ofChina, and rich economic gains and social benefits are obtained when the industry problems are solved.