Single-component anti-bacteria anti-yellowing colored silicone sealant for fish tank and preparation method of single-component anti-bacteria anti-yellowing colored silicone sealant

Abstract

The invention relates to a single-component anti-bacteria anti-yellowing colored silicone sealant for a fish tank and a preparation method of the single-component anti-bacteria anti-yellowing colored silicone sealant. The sealant is composed of, by weight, 100 parts of dihydroxy polydimethyl siloxane, 5-10 parts of quaternary ammonium salt end group modified dimethyl polysiloxane, 0-10 parts of pigments, 8-15 parts of fillers, 5-10 parts of acyloxy silane crosslinking agent, 1 part of coupling agent and 0.1 part of catalyst. By adding the bright-colored pigments, the attractiveness and practicability of the product are improved, and the product is easier to meet the demands of the market. By selection and matching of the viscosity of the 107 adhesive and addition of the coupling agent, a system is further reinforced, the elongation is controlled within a reasonable range, and the adverse effect on the sealant properties due to addition of the pigments is avoided. The method that an original silicone sealant adopts common dimethicone is changed to the method which adopts quaternary ammonium salt end group modified dimethyl polysiloxane so that the silicone sealant for the fish tank can keep colored for a long time, moreover, mildewing and bacteria breeding are not prone to occurring, the sealant is environmentally friendly, and the fish tank can keep clean and attractive for a long time.

Description

technical field [0001] The invention relates to a single-component antibacterial and anti-yellowing colored silicone sealant for fish tanks and a preparation method thereof, belonging to the technical field of sealants. Background technique [0002] The fish tank is a glassware used to raise tropical fish or goldfish. It plays an ornamental role. It not only creates a warm home for the fish, but also ensures the safety of the overall living environment. The fish tank is an indispensable decoration when it comes to home feng shui and other decorations. It is a perfect combination with the space and is the soul Zen master of home, office and commercial space. The tightness and structural stability of the fish tank system are related to the type and performance of the sealant used. At present, the most widely used fish tank glue in China is silicone glue, mainly due to the excellent aging resistance, sealing performance, compatibility and good bonding performance between silic...

AI Technical Summary

Problems solved by technology

[0006] On the one hand, none of the above-mentioned silicone glues has added pigments. After adding pigments, the mechanical strength and viscosity properties of the silicone glues have been reduced, and due to long-term contact with water, it is very easy to breed mold on the surface of the glue, which affects the appearance and cleanliness. It is especially obvious on the interface between water and air. Therefore, it is necessary to find a suitable composition to ensure the color of the silicone adhesive. The mechanical strength and bonding performance will not be affected. It is not easy to breed bacteria and mildew, and it can keep the color unchanged for a long time. , has become an urgent problem to be solved in the development process of high-end fish tank glue

On the other hand, the current silicone sealants have not made good progress in terms of functionality, especially silicone sealants for fish tanks

Because the silicone glue used for fish tanks is in contact with water for a long time, it is particularly easy to mold and breed bacteria in a humid environment, which affects the appearance, is not easy to clean, and will lead to a decline in water quality. Therefore, it is necessary to develop these special glues for specific environments.

[0007] In the case of product innovation and high quality requirements, continuing to use the original transparent silicone adhesive system can no longer meet the requirements of some high indicators, so the development of high-end fish tank adhesives is urgently needed to achieve product innovation and performance.

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