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Amine silane surface modified micro crystal isinglass active filler and its preparation method

A technology of microcrystalline muscovite and aminosilane, applied in the treatment of dyed organosilicon compounds, etc., can solve problems such as undiscovered, achieve obvious effects, enhance mechanical properties, electrical properties and moisture-proof properties.

Inactive Publication Date: 2008-06-11
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After searching, no literature reports or patent applications have been found to prepare a microcrystalline muscovite active filler with aminosilane surface modification using microcrystalline muscovite as a raw material

Method used

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  • Amine silane surface modified micro crystal isinglass active filler and its preparation method
  • Amine silane surface modified micro crystal isinglass active filler and its preparation method
  • Amine silane surface modified micro crystal isinglass active filler and its preparation method

Examples

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Effect test

example 1

[0077] A preparation method of microcrystalline muscovite active filler (600 mesh) modified by aminosilane surface. The microcrystalline muscovite powder sample used in this example is produced from a very large microcrystalline muscovite deposit in a certain place in Sichuan. As mentioned above, this deposit was first discovered by the author in 1997. Over the past few years, Sichuan Xinju Mining Resources Development Co., Ltd. and Chengdu University of Technology have done some work on the type, chemical composition, mineral composition, structure and beneficiation experiments of Sichuan microcrystalline muscovite ore, and successfully developed it accordingly. Xinju brand microcrystalline muscovite powder series products with different particle sizes such as 200 mesh, 325 mesh, 400 mesh, 600 mesh, 800 mesh, 1250 mesh and 2500 mesh have been launched. The microcrystalline muscovite samples of all examples in this patent with different particle sizes are all taken from the X...

example 2

[0101] A preparation method of microcrystalline muscovite active filler (200 mesh) modified with aminosilane surface. The characteristics of the origin, mineral composition, chemical composition and mineral physics of the microcrystalline muscovite filler (200 mesh) used in this example are the same as those of this patent example 1; its physical and chemical properties are shown in Table 2.

[0102] The aminosilane (KH-550) coupling agent and diluent used in this example are all the same as in this patent example 1; its surface modification process is also the same as this patent example 1, as shown in Table 3, the difference is The dosage of the coupling agent in this example is based on the microcrystalline muscovite powder material: aminosilane (KH-550) = 100: 0.5 to 0.7, and the calculated dosage and dosage range (%) of aminosilane (KH-550) are shown in Table 3. Show.

[0103] This example adopts the same method as Example 1 to characterize and evaluate the surface modif...

example 3

[0105] A preparation method of microcrystalline muscovite active filler (325 mesh) modified with aminosilane surface. The characteristics of the origin, mineral composition, chemical composition and mineral physics of the microcrystalline muscovite filler (325 mesh) used in this example are the same as those of this patent example 1; its physical and chemical properties are shown in Table 2.

[0106] The aminosilane (KH-550) coupling agent and diluent used in this example are all the same as in this patent example 1; its surface modification process is also the same as this patent example 1, as shown in Table 3, the difference is The weight of the joint agent in this example is based on the microcrystalline muscovite powder material: aminosilane (KH-550) = 100: 0.9 to 1.3, and the calculated dosage and dosage range (%) of aminosilane (KH-550) are shown in Table 3. .

[0107] This example adopts the same method as Example 1 to characterize and evaluate the surface modification...

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Abstract

A process for preparing the active filler from the microcrystalline muscovite through modifying its surface by aminosilane includes such steps as baking said microcrystalline muscovite, loading it in a mixer, using glacial acetic acid to regulate pH value of alcohol to 3-7 to obtain deluent, proportionally mixing the aminosilane as coupling agent with said deluent to obtain surface modifier, spraying it onto the microcrystalline mascovite in mixer, high-speed mixing, and drying.

Description

1. Technical field [0001] Microcrystalline muscovite is a new type of non-metallic mineral resource. The invention relates to a preparation method of microcrystalline muscovite active filler modified by aminosilane surface, which can be applied to industries such as plastics, rubber, coatings and adhesives, and is especially suitable as epoxy resin (EP) and phenolic resin (PF) , amino resin, alkyd resin, unsaturated polyester resin (UPR), diallyl phthalate (DAP), polyimide resin (PI), melamine and other thermosetting resins, polyamide (PA), poly Carbonate (PC), polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polyphenylene sulfide (PPS), polyethylene terephthalate (PETP), polyethylene terephthalate Butylene glycol formate (PBT), polyphenylene oxide (PPO), polyacrylate and other thermoplastic resins, as well as functional fillers such as nitrocellulose (CN), neoprene, etc., can give or improve the filled polymer materials or Acid and alkali resistance, UV prot...

Claims

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Application Information

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IPC IPC(8): C09C3/12
Inventor 汪灵叶巧明解原刘菁林金辉常嗣和
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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