Hydrophilic composition having mildewproofing effect and hydrophilic member
The technology of a kind of hydrophilic composition and hydrophilic polymer is applied in the direction of biocide-containing paint, antifouling/underwater coating, chemical instrument and method, etc., which can solve the problems of damage, non-mold inhibitor, etc., and achieve high The effect of hydrophilicity and excellent durability
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[0207] [Preparation of hydrophilic composition]
[0208] The preparation of described hydrophilic composition can be by described hydrophilic polymer (A), described additive (B) with antifungal effect and preferred metal alkoxide compound (C) and catalyst (D), and appropriate amount This is achieved by dissolving the additive (E) in a solvent and stirring the resulting solution. Catalyst (D) is preferably mixed rapidly before coating on the substrate. Specifically, it is preferable to apply the hydrophilic composition immediately after mixing the catalyst (D) or within 1 hour after mixing the catalyst (D).
[0209] If the coating is continued for a long time after mixing the catalyst (D), the viscosity of the hydrophilic composition increases, so that defects such as unevenness of the coating may occur.
[0210] It is also preferred to quickly mix the other components before applying the hydrophilic composition, in which case the hydrophilic composition will be storable for ...
Embodiment 1
[0316] 400 parts of distilled water, 70 parts of ethanol and 10 parts by weight of the anionic surfactant aqueous solution of the following structure of 5% are added to the total weight of 100 parts by the hydrophilic polymer, antifungal agent, and the following table 1 In the solid component composed of other components showing the type and quantity, stir at 25°C for 30 minutes to obtain a hydrophilic composition. In addition, in Table 1, the content of each component is expressed in terms of all the solid components The weight of the points is expressed in the form of % by weight.
[0317] Subsequently, the substrates described in Table 1 were immersed in an alkaline cleaning solution (prepared by diluting Semi Clean A-1 manufactured by Yokohama Oils and Fats Industry Co., Ltd. to 3%) for 5 minutes, and then water Clean and degrease. The hydrophilic composition was coated on a degreasing substrate and heated and dried at 100° C. for 10 minutes, and its dried thickness was 1...
Embodiment 2-22
[0339] [Example 2-22, Comparative Example 1-15]
[0340] A hydrophilic member was prepared in the same manner as in Example 1 except that the hydrophilic polymer, antifungal agent, other components, and base material described in Table 1 were used.
[0341] Table 1 also shows the evaluation results of these hydrophilic members prepared in the same manner as in Example 1.
[0342] [Table 1]
[0343]
[0344] Example 14
90.0
-
-
ZPT
10.0
Example 15
90.0
-
-
ZPT
10.0
Example 16
90.0
-
-
ZPT
10.0
Example 17
Compound A
90.0
9.9
ZPT
0.1
Example 18
Compound A
50.0
9.9
ZPT
0.1
Example 19
Compound A
50.0
49.9
ZPT
0.1
[0345] Example 20
Compound A
94.9
Compound E
5.0
ZPT
...
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