Method for improving dispersibility of n-propyltriethoxysilane

A technology of n-propyltrialkoxysilane and propyltrialkoxysilane, which is applied in the field of improving the dispersion of n-propyltrialkoxysilane, and can solve the problem of high economic cost of blending and affecting the waterproof performance of structures , Poor durability of concrete and other issues, to achieve low economic cost, improve weather resistance and durability, and maintain air permeability

Pending Publication Date: 2019-12-20
南京曙光精细化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows creation of better quality coatings on materials like concrete, brick walls, tiles, plasterboards, etc., without compromising their properties such as strength or preventiveness against rainwater damage. It involves adding certain chemical substances called N-(n-Protective)trimethylsilanes (PTMS), an aminosilylic acid derivative used widely throughout industry today's industries, together with specific types of carriers made from different sources. These mixtures improve coating performance while reducing costs compared to previous methods. Additionally, this process simplifies production processes making it more efficient than existing techniques. Overall, these technical improvements make the resulting products last longer even when exposed to harsh environments over time.

Problems solved by technology

This patents describes how different types of chemical substances like organosilicons (Si) react when mixed together at room temperature. It suggests adding this mixture to create new compounds called n-propanolamine (NPA). These technical problem addressed in these documents include finding ways to mix certain chemical components without making them more difficult than others due to its hydroscopic properties, while still maintaining good adhesion between various parts of structure being protected during construction work.

Method used

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  • Method for improving dispersibility of n-propyltriethoxysilane
  • Method for improving dispersibility of n-propyltriethoxysilane

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Ingredients: 10kg of n-propyltriethoxysilane, 10kg of precipitated white carbon black.

[0034] Mixing: Add the precipitated white carbon black into the 50L high-speed mixer at one time, cover the lid, open the exhaust port, then turn on the stirring, spray n-propyltriethoxysilane through the spray port, and finish spraying in 10 minutes , and continue to stir for 2 minutes to obtain pre-dispersed masterbatch A.

Embodiment 2

[0036] Ingredients: n-propyltrimethoxysilane 15kg, precipitated white carbon black 10kg.

[0037] Mixing: Add the precipitated white carbon black into the 50L high-speed mixer at one time, cover the lid, open the exhaust port, then turn on the stirring, spray n-propyltrimethoxysilane through the spray port, and finish spraying in 10 minutes. Continue stirring for 2 minutes to obtain pre-dispersed masterbatch B.

Embodiment 3

[0039] Ingredients: n-propyltriethoxysilane 100kg, calcium carbonate 120kg.

[0040] Mixing: Add calcium carbonate to the double-helix conical mixer at one time, then turn on the motor, spray n-propyltriethoxysilane through the spray port, and run the motor for 8 minutes to complete the mixing to obtain pre-dispersed masterbatch C.

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Abstract

The invention discloses a method for improving the dispersibility of n-propyltriethoxysilane. The method comprises the following steps: uniformly mixing n-propyltriethoxysilane and an inorganic carrier which serve as raw materials to prepare pre-dispersed masterbatch, wherein the mixed ratio, based on weight, of the n-propyltriethoxysilane to the inorganic carrier is (30-70):(70-30); and doping the pre-dispersed masterbatch into concrete, mortar or cement paste to perform waterproofing treatment. By the method, the dispersibility of the n-propyltriethoxysilane in the concrete, mortar or cementpaste is simporved, so that any shearing surfaces of a test block have permanent water resistance.

Description

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Claims

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Application Information

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Owner 南京曙光精细化工有限公司
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