Anti-aging modified calcium carbonate for paint-latex paint and preparation method thereof

A latex paint and anti-aging technology, which is applied in latex paint, chemical instruments and methods, dyed organosilicon compound treatment, etc., can solve the problems of composite material performance degradation, weak matrix bonding force, and two-phase interface defects, etc., to achieve improved anti-aging Effects of aging, improvement of surface gloss, uniform particle size

Active Publication Date: 2013-11-27
青阳县恒源化工原料有限责任公司
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  • Abstract
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Problems solved by technology

However, the surface of heavy calcium carbonate is hydrophilic and oleophobic, the specific surface area is large, the surface energy is high, and the particles are easily agglomerated. When directly or in large quantities fill

Method used

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  • Anti-aging modified calcium carbonate for paint-latex paint and preparation method thereof

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Embodiment Construction

[0010] A kind of anti-aging paint-modified ground calcium carbonate for latex paint,

[0011] First, weigh 800 mesh heavy calcium carbonate 100, oleic acid polyoxyethylene ester 2, polyethylene wax 0.6, styrene 1, aluminum nitride powder 0.4, triphenyl phosphite 2, aziridine cross by weight (kg). Coupling agent XR-100 0.3, polyvinyl alcohol 0.2, silane coupling agent KH550 2, styrene-acrylic emulsion 0.4, emulsifier OP-10 2, alumina 0.5, nano-silica (VK-SP30) 1, epoxy soybean oil 2. Ammonium polyphosphate 0.5, zinc powder 0.9,

[0012] First, dry the heavy calcium carbonate at 90-95°C until the water content is less than 0.5%, and then add it to a high-speed mixer. After mixing polyoxyethylene oleate, polyethylene wax, styrene, aluminum nitride powder, Triphenyl phosphite, aziridine crosslinking agent XR-100, polyvinyl alcohol, silane coupling agent KH550, mix according to the formula ratio, then add to calcium carbonate, heat up to 95-100°C and stir at high speed for 4-5 min...

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Abstract

The invention provides an anti-aging modified calcium carbonate for a paint-latex paint. The modified calcium carbonate is prepared from the following raw materials in parts by weight: 95-100 parts of 800-mesh ground calcium carbonate, 1-3 parts of polyoxyethylene oleate, 0.5-0.8 part of polyethylene wax, 1-2 parts of styrene, 0.3-0.5 part of aluminum nitride powder, 1-3 parts of triphenyl phosphite, 0.2-0.4 part of aziridine crosslinking agent XR-100, 0.1-0.3 part of polyvinyl alcohol, 2-3 parts of silane coupling agent KH550, 0.3-0.5 part of styrene-acrylic emulsion, 2-3 parts of emulsifier OP-10, 0.4-0.6 part of aluminum oxide, 1-2 parts of nano silicon dioxide (VK-SP30), 1-2 parts of epoxy soybean oil, 0.5-0.6 part of ammonium polyphosphate and 0.8-1.2 parts of zinc powder. The preparation method comprises the following steps: drying calcium carbonate, proportionally and sequentially adding the other raw materials in batches, thoroughly mixing in a high-speed stirrer, drying and grinding. The modified calcium carbonate provided by the invention has the advantages of favorable dispersity and favorable wear resistance, and can lower the cost and enhance the workability of the paint when being used in paint materials; and the paint film has high glossiness.

Description

technical field [0001] The invention relates to the field of inorganic fillers, in particular to a modified calcium carbonate for anti-aging paint-emulsion paint and a preparation method thereof. Background technique [0002] Ground calcium carbonate is a commonly used inorganic filler. It is widely used in rubber, plastics, coatings and other fields due to its wide source and low price. However, the surface of heavy calcium carbonate is hydrophilic and oleophobic, the specific surface area is large, the surface energy is high, and the particles are easily agglomerated. When directly or in large quantities filled in organic matrix materials, it is not only difficult to disperse evenly, but also has a weak binding force with the matrix. , leading to two-phase interface defects and some performance degradation of composite materials. Therefore, in order to broaden its application field, it is necessary to modify the surface of heavy calcium carbonate to make its surface lipop...

Claims

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Application Information

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IPC IPC(8): C09C1/02C09C3/10C09C3/06C09C3/08C09C3/12C09D7/12C09D5/02
Inventor 陈永忠
Owner 青阳县恒源化工原料有限责任公司
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