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Calcium carbonate surface modifier

A surface modifier, calcium carbonate technology, applied in the direction of inorganic pigment treatment, dyeing organosilicon compound treatment, chemical instruments and methods, etc., can solve the problems of cumbersome synthesis process, not very strong, high cost, etc., and achieve good comprehensive mechanical properties , good surface modification effect and strong interfacial binding force

Inactive Publication Date: 2015-04-01
TIANJIN BINPU PRODIVITY PROMOTION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application of silane surface modifiers to treat the surface of glass fibers is relatively mature, but silane coupling agents do not have strong reactivity in some resins, and their coupling effect is not good; titanate surface modifiers have Price advantage, but its surface modification effect is poor; rare earth surface modifier is a new type of environmental protection surface modifier, is a unique modifier variety in my country, has a good surface modification effect, and due to the rare earth element Special coupling effect, the inorganic powder modified by it can also play the role of plasticizing, lubricating, and toughening polymer materials, but it has the disadvantages of complex structure, cumbersome synthesis process, and high cost, which is not conducive to its promotion

Method used

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  • Calcium carbonate surface modifier

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Embodiment 1

[0020] A calcium carbonate surface modifier is a rare earth-silane surface modifier prepared through coordination reaction using lanthanum oxide and gamma-mercaptopropyltrimethoxysilane as raw materials.

[0021] The preparation steps include: accurately weighing lanthanum oxide and γ-mercaptopropyltrimethoxysilane with a substance ratio of 1:6, adding them into a reaction vessel, rapidly raising the temperature to 130°C, stirring, and reacting for 3 hours to obtain rare earth - Silane surface modifiers.

Embodiment 2

[0023] A calcium carbonate surface modifier is a rare earth-silane surface modifier prepared through coordination reaction using lanthanum oxide and 3-aminopropyltriethoxysilane as raw materials.

[0024] The preparation steps include: accurately weighing lanthanum oxide and 3-aminopropyltriethoxysilane with a substance ratio of 1:6, adding them into a reaction vessel, rapidly raising the temperature to 130°C, stirring, and reacting for 3 hours to obtain Rare earth-silane surface modifier.

Embodiment 3

[0026] A calcium carbonate surface modifier is a rare earth-silane surface modifier prepared through coordination reaction using lanthanum oxide and gamma-mercaptopropyltrimethoxysilane as raw materials.

[0027] The preparation steps include: accurately weighing lanthanum oxide and γ-mercaptopropyltrimethoxysilane with a substance ratio of 1:7, adding them into a reaction vessel, rapidly raising the temperature to 120°C, stirring, and reacting for 3 hours to prepare the rare earth - Silane surface modifiers.

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Abstract

The invention provides a calcium carbonatesurface modifier. The calcium carbonate surface modifier is a rare earth-silane surface modifier which takes a rare earth oxide and silane as raw materials and is prepared through a coordination reaction, the surface modifier integrates advantages of silane and rare earth surface modifiers and is good in calcium carbonate surface modification effect, the interface bonding force of modified calciumcarbonateto a high polymer material is large, and a preparation method is simple in process.

Description

technical field [0001] The invention relates to the field of inorganic powder surface modifiers, in particular to a calcium carbonate surface modifier. Background technique [0002] A surface modifier is an additive that improves the surface properties of polymer materials and inorganic fillers or reinforcing materials. It combines inorganic materials and polymer materials through physical or chemical effects. In the process of polymer material processing, it can reduce the viscosity of the material, improve the performance of the composite material, and make the composite material obtain good mechanical properties. The structure of the surface modifier has both an inorganic-philic group and an organophilic group. The existence of the inorganic-philic group enables the surface modifier to chemically interact with the surface of the inorganic substance, and the organophilic group makes the surface modify The chemical reaction between the active agent and the polymer or synth...

Claims

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Application Information

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IPC IPC(8): C09C1/02C09C3/06C09C3/12
Inventor 由玉泉孟庆昌王启庸
Owner TIANJIN BINPU PRODIVITY PROMOTION
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