AEM5700-C paint anti-mildew agent

2021-11-03   Pageview:152

AEM5700-C paint anti-mold agent can efficiently control a variety of bacteria microorganisms, Aspergillus niger, Aspergillus flavus, Aspergillus variegatus, Mucor, Trichoderma globosum, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and most other molds and bacteria have a significant inhibitory effect, does not produce drug resistance, longer lasting.

1, does not contain heavy metals, does not contain DMF, in line with the EU ROHS, REACH and other specified requirements.
2, relatively stable to acid, weak alkali solution, not affected by ultraviolet light, decomposition temperature is greater than 350 ℃.
3, non-flammable, with flame retardant, PH use range between 5-6.

 

 

 

 

 

 

 

 

 

 

 

A functional group is attached to the titanium center.
Entangled groups with long carbon chains, suitable for thermoplastic resins.
5Y-curing reaction group, suitable for thermosetting resin.
6N-Number of non-hydrolyzable groups.

Functional zone 1 titanate coupling agent chemically reacts with trace hydroxyl groups or protons adsorbed on the surface of the pigment and filler through the alkoxy group, and couples to the surface of the pigment and filler to form a monomolecular layer, and release isopropanol at the same time. Comparing the coupling ptfe fine powder mechanism of monoalkoxy titanate and trialkoxy silane to pigments and fillers (see Figure 15-1 and Figure 15-2), it roughly shows the basic difference between titanium coupling agent and silicon coupling agent . The titanium coupling agent exhibits a single-molecule mechanism, and the silane coupling agent also has a silanol oligomerization mechanism due to three alkoxy groups. Developed from functional zone 1 into 3 types of coupling agents. Each type is selective to the water content of the pigment and filler surface due to the difference in coupling groups. Generally, the monoalkoxy type is suitable for dry inorganic pigments and fillers with low water content containing only bound water, and the chelating type is suitable for pigments and fillers with high water content.

Functional zone 2 Some titanate coupling agents can carry out transesterification and crosslinking with ester groups and carboxyl groups in organic polymers. See Figure 15-4), which causes cross-linking between titanate, fillers and organic polymers, and promotes the viscosity of the system to rise and become thixotropic. The transesterification phenomenon is sometimes reversible, that is, it is thixotropic, and the irreversible becomes a cross-linking curing agent. Through transesterification, the hydroxyl group in the epoxy resin can be esterified, and saturated polyester or alkyd resin can also be cross-linked and cured. Since there is no unsaturated structure, the yellowing phenomenon can be prevented. Therefore, we can use the transesterification reaction to solve some practical problems.

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