Chung Shan Institute of Science and Technology

Chung-Shan Institute of Science and Technology, Armaments Bureau, M.n.d

Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National Defense

Chin-Yih Chen

Chen-Chi Martin Ma

Hon-Bin Chen

Cheng-Chien Yang

Jeng-Cheng Yang

Kuo-Hui Wu

Wang-Tsai Gu

Fu-Chu Yang

Wang-Tsae Gu

Jeng-Chang Yang

The invention discloses an anti-bacterial composition and method for producing the same. The anti-bacterial composition of the invention includes an organic siloxane material which comprises an amino group, and a plurality of silver atoms. Particularly, the organic siloxane material has a meshed structure, and the plurality of silver atoms are bonded to the amino group and are well dispersed in the meshed structure.

Anti-bacterial composition and method for producing the same

An epoxy resin containing side-chain-tethered caged POSS and a preparation method thereof as well as epoxy resin material containing POSS-epoxy and a preparation method thereof are disclosed. The epoxy resin containing side-chain-tethered caged POSS (POSS epoxy) is formed by tethering of POSS group to the side chain of the diglycidyl ether of bisphenol A (DGEBA) epoxy resin. The preparation method of the POSS epoxy includes a step of reacting epoxy resin with caged POSS to form epoxy resin containing side-chain-tethered caged POSS (POSS-epoxy). The preparation method of epoxy resin material containing POSS-epoxy includes a step of reacting DGEBA epoxy resin with POSS-epoxy to get epoxy resin material containing POSS-epoxy. The POSS-epoxy is distributed evenly in the epoxy resin material with POSS-epoxy.

Epoxy resin containing side-chain-tethered caged POSS and preparation method thereof as well as epoxy resin material containing POSS-epoxy and preparation method thereof

A phenolic resin that increases its toughness by polydimethylsiloxane and a process of preparing the same is provided. Polydimethylsiloxane is added as a coupling agent in a &#x3b3;-glycidoxypropyltrimethoxysilane-modified phenolic resin to improve the compatibility between polydimethylsiloxane and the phenolic resin. Then, tetraethoxysilane is added to conduct hydrolysis condensation and obtain tougher and thermally stable phenolic resin.

Toughness-increased phenolic resin and preparation thereof

The method of the present invention includes grafting a glycidyl alkylene trialkoxy silane to a novolac phenolic resin in an organic solvent to form a modified novolac phenolic resin; mixing a tetralkoxy silane, an acid and water with the resulting organic solution containing the modified novolac phenolic resin, wherein hydrolysis and condensation reactions are carried out to form a &#x2014;Si&#x2014;O&#x2014;Si&#x2014; bonding; adding a curing agent for novolac phenolic resin to the resulting reaction mixture; evaporating the organic solvent and acid from the resulting mixture and heating the resulting mixture to form a novolac phenolic resin/silica hybrid organic-inorganic nanocomposite.

Method for preparing a novolac phenolic resin/silica hybrid organic-inorganic nanocomposite

A poly(urea-ureathane) based on polydimethyl siloxane is prepared by reacting an amino-terminated polydimethyl siloxane with polyisocyanate to form a prepolymer of poly(urea-urethane), and reacting the prepolymer and a chain extender in the presence of a catalyst. The resulting poly(urea-urethane) contains about 5-65 wt % of hard segments, and has a surface resistance of about 10-150 M&#x3a9; at high relative humidity, so that it can be used in anti-static electricity and electrostatic discharge shielding.

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Longtan, Taiwan

Chin-Yih Chen