Application of anti-mildew agent for paints

2021-11-03   Pageview:185

Paint anti-mildew agent is generally used in furniture, building materials, etc., has the characteristics of environmental protection, fast drying, strong dispersion uniformity, added in varnish, top coat or primer, white mineral oil, with very good compatibility, colorless and transparent, does not affect the performance of the oil itself, brush on the surface of the product, can protect the product for a long time in high temperature, high humidity environment will not be moldy. The oil-based mold inhibitor does not contain formaldehyde or formaldehyde release; strong inhibition of mold, does not produce drug resistance, long duration; easy to use, good fluidity, easy to add, and not easy to burn.

 

 

 

 

 

 

 

 

 

 

 

 

 

Functional zone 3 The groups connecting the titanium center in the titanate molecule are long carbon chain alkoxy, phenolic, carboxyl, sulfonic acid, phosphoric acid, and pyrophosphate. These groups determine the characteristics and functions of the titanium coupling agent. For example, the sulfonic acid group imparts a certain degree of thixotropy; the pyrophosphoric acid group has flame retardant, anti-rust, and increases adhesion; the phosphorous acid ligand has anti-oxidation properties. Through the selection of this part of the group, the coupling agent can have multiple functions.

The long aliphatic carbon chain in functional zone 4 is relatively soft and can be bent and wound with the organic base material, enhances the binding force with the base material, improves their compatibility, and causes the surface energy of the inorganic pigment and filler interface to change, resulting in viscosity Significantly decrease, improve the melt fluidity and processing technology of the inorganic pigment, filler and base material system, and shorten the mixing time. Increase the filling amount of inorganic substances, and give flexibility and stress transfer functions, thereby improving elongation, tearing and impact strength. It also imparts lubricity in pigments, fillers and base systems, improves dispersibility and electrical properties, etc.

In functional zone 5, when the active group is connected to the organic skeleton of titanium, it can make the coupling agent and the organic polymer undergo a chemical reaction to cross-link. For example, micronized ptfe in cookware unsaturated double bonds can be cross-linked with unsaturated resins, and amino groups can be cross-linked with epoxy resins. Through the chemical reaction of the coupling agent and the organic base material, the inorganic pigments, fillers and the organic base material are combined.

The number of non-hydrolyzable groups in the molecule of functional zone 6 titanate coupling agent has at least 2 or more. There are 2 or 3 non-hydrolyzable groups in the chelating titanate coupling agent; there are 3 non-hydrolyzable groups in the monoalkoxy titanate coupling agent, so the functional groups can be controlled according to actual needs The number of functionalities is used to control the degree of cross-linking, which is not possible with trialkoxy monofunctional silane coupling agents.

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