Papers by Author: Wen Tao Huang

Abstract: In this paper, a kind of water-soluble acrylic emulsion with methyl methacrylate (MMA) and butyl acrylate (BA) as hard and soft monomer respectively, acrylic acid (AA) and hydroxypropyl methacrylate as functional monomers, ammonium persulfate (APS) and ammonia as initiator and neutralizer respectively, was prepared by emulsion polymerization. The resulting emulsion possesses high solid content, low viscosity, high stability and film-forming properties, indicating that it would be applicable to water-based ink. The effect of the ratio of MMA to BA on the film-forming properties of resin and the influence of AA and HPA on the water-soluble property and viscosity of resin were investigated, and the relationship of reaction temperature and the emulsion stability was also studied. This paper can provides a certain reference to synthesis of acrylic resin and application of acrylic resin to the water-based ink.

Abstract: The packaging of food, beverages, tobacco, alcohol, drugs, cosmetics and other goods requires higher property of security and some special functionality such as the property of anti-bacterial; the property of anti-bacterial can be achieved by using anti-bacterial agent in the ink. In this paper, a kind of zinc-copper antibacterial agent was made by attached the metal Zn²⁺, Cu²⁺on the zeolite by ion exchange and the zeolite modified was used as a carrier; Than the zinc-copper anti-bacterial UV ink was prepared by mixing and grinding zinc-copper antibacterial agent, polyester acrylate, HDDA, TMPTA, titanium dioxide and other element of UV ink; Finally the property of anti-bacterial of Escherichia.coli(anti-E.coli) and staphylococcus aureus were tested; this paper focus on the analysis and discussion of the influence of different concentration antibacterial agent on the property of ink. This study has some practical significance to the research on the property on anti-bacterial of ink.

Abstract: Packaging security and functionality has been the research focus. In recent years, people pay more attention to the functionality of ink used in packaging. In this paper, a kind of zinc-copper antibacterial agent was made by attached the metal Zn²⁺, Cu²⁺ on the zeolite by ion exchange and the zeolite modified was used as a carrier; Than the zinc-copper anti-bacterial UV ink was prepared by mixing and grinding zinc-copper antibacterial agent, polyester acrylate, HDDA, TMPTA, titanium dioxide and other element of UV ink; The UV ink prepared was printed on paper. When the UV ink printed was dried, the property of anti-Escherichia.coli(anti-E.coli) and anti-staphylococcus aureus of UV ink prepared was tested by the anti-bacterial experiment. This study has good application prospect in the area of safety packaging.

Abstract: Using the hydrolysis reaction of TEOS and ethanol to prepare nano-SiO₂ sol, and grafting with silane coupling agent WD-20 to introduce double bonds to make a surface modification, the nano-SiO₂ sol mixed with the light-cured resin PEA, reactive diluents TPGDA and photoinitiators 1171 under ultrasonicto after dried concentration in vacuum oven, then the composite resin gotten was characterized through FTIR, TGA, UV-Vis and particle size analysis. The results showed as follows: the light-cured resin modified by nano-SiO₂ with WD-20 was better in dispersion and stability, and durability, abrasion resistance and other performances of the coating improved significantly which broadened the application range of light-cured resin.

Abstract: The ink used in food packaging is facing great challenge with the increasing of food safety requirements. In this paper, a kind of nano-SiO₂ water-based ink was studied which combined the anti-UV & anti-bacterial characteristics of nano-SiO₂ with the advantage of non-polluting water-based ink. Nano-SiO₂ was prepared by the chemical precipitation method and characterized by XRD and Malvern zetasizer Nano-ZS. Sodium silicate solution and NH₄CI solution were used as the reagent. The experimental results showed that the average size of nano-SiO₂ was less than 100nm, and it was a kind of amorphous powder. The homemade powder of nano-SiO₂¬, water-based ink and dispersant PVP were mixed using Ultra–wave dispersion, and the anti-UV & anti-bacterial water-based ink could be prepared. The UV absorption experiment of this ink shows that the absorption rate was nearly 100%, and the anti-Escherichia.coli(anti-E.coli) experiment showed that the anti-bacterium rate could reach 90%. This study has good application prospect in anti-aging property of ink and the area of food safety packaging.