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Preparation method of silane coupling agent modification montmorillonite functionality nanometer fat liquoring complex agent

A silane coupling agent, nanocomposite technology

Inactive Publication Date: 2013-03-27
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of silane coupling agent to modify montmorillonite and then introduce it into the preparation of fatliquor to prepare functional nanocomposite fatliquor is still relatively rare.

Method used

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  • Preparation method of silane coupling agent modification montmorillonite functionality nanometer fat liquoring complex agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Step 1: Take 85 parts by weight of methanol and 5 parts by weight of deionized water into a three-necked flask, add 2.0 parts by weight of silane coupling agent, adjust the temperature control device until the temperature reaches 55 ° C, adjust the pH to 4.0 with glacial acetic acid, React at a constant temperature for 90 minutes; adjust the temperature control device until the temperature reaches 85°C, add 5 parts by weight of sodium montmorillonite, react at a constant temperature for 120 minutes, wash the product with 10 parts by weight of methanol and centrifuge for 10 minutes, repeat three times, and The final product was dried in an oven at 85°C for 24 hours to obtain montmorillonite modified by silane coupling agent;

[0023] Wherein, the silane coupling agent is selected from γ-aminopropyltriethoxysilane.

[0024] Step 2: Take 0.85 parts by weight of silane coupling agent modified montmorillonite and 40 parts by weight of rapeseed oil into a three-necked flask, ...

Embodiment 2

[0027] Step 1: Take 90 parts by weight of methanol and 10 parts by weight of deionized water into a three-necked flask, add 2.2 parts by weight of silane coupling agent, adjust the temperature control device until the temperature reaches 57 ° C, adjust the pH to 5.0 with glacial acetic acid, Constant temperature reaction for 105 minutes; adjust the temperature control device until the temperature reaches 87 ° C, add 5 parts by weight of sodium montmorillonite, and react at a constant temperature for 135 minutes, wash the product with 12 parts by weight of methanol and then centrifuge for 12 minutes, repeat three times, the The final product was dried in an oven at 90°C for 24 hours to obtain montmorillonite modified with silane coupling agent;

[0028] Wherein, the silane coupling agent is selected from γ-methacryloxypropyltrimethoxysilane.

[0029] Step 2: Take 3.86 parts by weight of silane coupling agent modified montmorillonite and 45 parts by weight of rapeseed oil into a...

Embodiment 3

[0032] Step 1: Take 95 parts by weight of methanol and 15 parts by weight of deionized water into a three-necked flask, add 2.4 parts by weight of silane coupling agent, adjust the temperature control device until the temperature reaches 60 ° C, adjust the pH to 5.5 with glacial acetic acid, React at a constant temperature for 120 minutes; adjust the temperature control device until the temperature reaches 90°C, add 5 parts by weight of sodium montmorillonite, react at a constant temperature for 150 minutes, wash the product with 15 parts by weight of methanol and centrifuge for 15 minutes, repeat three times, and The final product was dried in an oven at 95°C for 24 hours to obtain montmorillonite modified with silane coupling agent;

[0033] Among them, the silane coupling agent is selected from 3-aminopropyltrimethoxysilane.

[0034] Step 2: Take 6.87 parts by weight of silane coupling agent modified montmorillonite and 50 parts by weight of rapeseed oil into a three-necked...

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Abstract

The invention relates to a preparation method of a silane coupling agent modification montmorillonite functionality nanometer fat liquoring complex agent. Leather flame-retardant technology and flame-resistant materials are rarely studied and developed in China, and studies of obtaining a functionality nanometer fat liquoring complex agent by using silane coupling agent modification montmorillonite and introducing the silane coupling agent modification montmorillonite to preparation of a fatting agent are rare. The preparation method includes fetching methanol and water, adding asilane coupling agents and Na-montmorillonite to the methanol and the water so as to obtain the silane coupling agent modification montmorillonite, enabling the silane coupling agent modification montmorillonite to thermostatically react with colza oil, and adding quadrol Al2O3, dropping a solution of acrylic acid and sodium hydrogen sulfite to obtain the silane coupling agent modification montmorillonite functionality nanometer fat liquoring complex agent. The silane coupling agent modification montmorillonite functionality nanometer fat liquoring complex agent is excellent in flame resistant property, improves mechanical properties, filling ability, binding ability and the like of a product, and has the advantages of being reproducible in sources, non-toxic and pollution-free, good in biological degradability and the like.

Description

technical field [0001] The invention relates to a preparation method of a leather fatliquor, in particular to a preparation method of a silane coupling agent-modified montmorillonite functional nano-composite fatliquor. Background technique [0002] Fatliquoring agent not only endows leather with good properties, but also because of its relatively low bonding strength with leather fibers, it is very easy to migrate to the leather surface during heating and become fuel directly, thus improving the flammability of leather . Therefore, flame retardancy has become one of the requirements for leather used in the interior decoration of high-rise buildings, aircraft and automobile interior decoration, the manufacture of office furniture, and the manufacture of forest fire prevention equipment. Aiming at the disadvantages of the flammability of leather and the release of toxic gas and smoke when burned, foreign automobile companies have proposed strict flame retardant indicators f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14C9/02C08K9/06C08K3/34
Inventor 吕斌段徐宾马建中高党鸽高建静
Owner SHAANXI UNIV OF SCI & TECH
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