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Epoxy silane surface modified microcrystal muscovite active filler and its preparation method

A technology of microcrystalline muscovite and epoxy silane, which is applied in the treatment of fibrous fillers and dyed organosilicon compounds, can solve undiscovered problems, achieve obvious effects, enhance mechanical properties, electrical properties and moisture-proof properties Effect

Inactive Publication Date: 2008-03-12
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After searching, no literature reports or patent applications have been found to use microcrystalline muscovite as a raw material to prepare a microcrystalline muscovite active filler surface-modified by epoxy silane (KH-560)

Method used

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  • Epoxy silane surface modified microcrystal muscovite active filler and its preparation method
  • Epoxy silane surface modified microcrystal muscovite active filler and its preparation method
  • Epoxy silane surface modified microcrystal muscovite active filler and its preparation method

Examples

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example 1

[0076] A preparation method of epoxy silane surface modified microcrystalline muscovite active filler (600 mesh). The microcrystalline muscovite powder sample used in this example was produced from a large microcrystalline muscovite deposit in a certain area in Sichuan. As mentioned above, the deposit was first discovered by the author in 1997. In the past few years, the scientific and technical personnel of Sichuan Xinju Mining Resources Development Co., Ltd. and Chengdu University of Technology have done certain work on the type, chemical composition, mineral composition, structure and beneficiation experiment of Sichuan microcrystalline muscovite ore, and successfully developed them 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 are produced. The microcrystalline muscovite samples of different particle sizes in all examples of this patent a...

example 2

[0100] A preparation method of epoxy silane surface modified microcrystalline muscovite active filler (200 mesh). The microcrystalline muscovite filler (200 mesh) used in this example has the same origin, mineral composition, chemical composition and mineral physical characteristics as in Example 1 of this patent; its physical and chemical properties are shown in Table 2.

[0101] The epoxy silane (KH-560) coupling agent and diluent used in this example are all the same as in Example 1 of this patent; the surface modification process is also the same as Example 1 of this patent, 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: epoxy silane (KH-560) = 100: 0.5 ~ 0.7, the calculated dosage and dosage range of epoxy silane (KH-560) ( %)as shown in Table 3.

[0102] This example uses the same method as Example 1 to characterize and evaluate the surface modification effect, which shows th...

example 3

[0104] A preparation method of epoxy silane (KH-560) surface modified microcrystalline muscovite active filler (325 mesh). The microcrystalline muscovite filler (325 mesh) used in this example has the same origin, mineral composition, chemical composition and mineral physical characteristics as in Example 1 of this patent; its physical and chemical properties are shown in Table 2.

[0105] The epoxy silane (KH-560) coupling agent and diluent used in this example are all the same as in Example 1 of this patent; the surface modification process is also the same as Example 1 of this patent, as shown in Table 3, the difference is The weight of the coupling agent in this example is based on the microcrystalline muscovite powder material: epoxy silane (KH-560) = 100: 0.9 ~ 1.3, the calculated dosage and dosage range of epoxy silane (KH-560) (% )as shown in Table 3.

[0106] This example uses the same method as Example 1 to characterize and evaluate the surface modification effect, which...

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Abstract

A process for preparing the active filler from the microcrystalline muscovite through modifying its surface by epoxy silane includes such steps as baking the microcrystalline muscovite, loading it in a mixer, using glacial acetic acid for regulating the pH value of alcohol to 3-7 to obtain deluent, proportionally mixing it with epoxy silane as coupling agent to obtain surface modifier, spraying it onto the microcrystalline muscovite 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 an epoxy silane surface-modified microcrystalline muscovite active filler and a preparation method thereof. It can be used in plastics, rubber, coatings, adhesives and other industries, and is especially suitable for use as phenolic resin (PF) and epoxy resin. (EP), unsaturated polyester resin (UPR), polyimide resin (PI), amino resin and other thermosetting resins, as well as polyamide (PA), polycarbonate (PC), polystyrene (PS), poly Functional fillers for thermoplastic resins such as vinyl chloride (PVC), polypropylene (PP), polyethylene terephthalate (PETP), polybutylene terephthalate (PBT), polypropionate, etc., and can Give or improve the acid and alkali resistance, UV resistance, aging resistance, insulation, abrasion resistance, heat resistance, weather resistance, elasticity, mechanical strength and other properties of the filled polymer material or ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C3/12C09C1/28
Inventor 汪灵叶巧明刘菁林金辉乔峰王一鸣
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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