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Method for preparing anti-ultraviolet and acid-resisting iron oxide black granules

An iron oxide black and anti-ultraviolet technology, which is applied in chemical instruments and methods, dyeing organosilicon compound treatment, inorganic pigment treatment, etc., can solve the problems of limiting the use range of iron oxide black, poor heat resistance stability, discoloration, etc., and achieve improvement Excellent UV resistance, acid resistance, alkali resistance, and high tinting strength

Active Publication Date: 2013-09-11
TONGLING RELY TECH
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Problems solved by technology

However, iron oxide black will fade and change color at higher temperatures, and its heat resistance is poor, which limits the scope of use of iron oxide black.

Method used

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Embodiment Construction

[0014] A preparation method of anti-ultraviolet and acid-resistant iron oxide black particles, comprising the following steps:

[0015] (1) Weigh sodium pyrophosphate, methyl hydroxyethyl cellulose and silane coupling agent KH550 in a weight ratio of 3:2:1 and add them to 12 times deionized water, heat in a water bath to 55°C, and ultrasonically disperse for 30 minutes to obtain viscosity liquid;

[0016] (2) Add 3% anti-ultraviolet agent and 2% attapulgite to the viscous liquid prepared above, and disperse at a high speed of 2000rpm for 20 minutes to obtain a viscous liquid modified by anti-ultraviolet agent and attapulgite;

[0017] (3) Take 125 parts by weight of iron oxide black and add it to the granulator for granulation, and at the same time, spray 60 parts of the modified viscous liquid prepared in step (2) evenly on the iron oxide black powder to form oxidized Iron black small particles;

[0018] (4) Dry the iron oxide black particles prepared in ...

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Abstract

The invention discloses a method for preparing anti-ultraviolet and acid-resisting iron oxide black granules. The method comprises the following specific steps of: dissolving sodium pyrophosphate, methyl hydroxyethyl cellulose and a silane coupling agent KH550 into deionized water according to a certain weight ratio, so as to obtain viscous liquid; adding an anti-ultraviolet agent and attapulgite to the obtained viscous liquid so as to carry out modification; and adding iron oxide black to a granulator for granulation while uniformly spraying the modified viscous liquid to iron oxide black powder, so as to form small iron oxide black granules, drying and sieving, thereby obtaining finished products. The iron oxide black granules prepared by the method have the characteristics of excellent temperature resistance, good ultraviolet ray, acid and alkali resistance, strong light absorption, high coloring power, good compatibility, good dispersion and the like and have huge market prospects.

Description

technical field [0001] The invention relates to a preparation method of iron oxide black, in particular to a preparation method of ultraviolet-resistant and acid-resistant iron oxide black particles. Background technique [0002] Iron oxide black, the molecular formula is Fe 3 o 4 , is black powder, is Fe 2 o 3 It is an adduct with FeO, insoluble in water, magnetic, and has high coloring power and hiding power. As one of the iron-based pigments, iron oxide black is widely used in phenolic anti-rust paint fillers and heavy-duty anti-corrosion paint primers in the construction industry due to its non-toxic, odorless, and non-polluting characteristics; it is used in rubber, plastic When coloring, it has the effect of strengthening aging and protecting organic matter from being degraded by ultraviolet light; in addition, it is also used for coloring of artificial marble, ceramics and cement floors. However, iron oxide black will fade and change color at higher temperatu...

Claims

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Application Information

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IPC IPC(8): C09C1/24C09C3/12C09C3/06C09C3/00
Inventor 孙晓庆章志海曹阳黄忠达杜松松刘凡缪志剑黎镇沃承立
Owner TONGLING RELY TECH
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