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A kind of jatropha oil-based polymer fatliquoring agent and preparation method thereof

A technology of jatropha oil and epoxy jatropha oil, which is applied in tanning treatment, animal husbandry, small hide/big hide/leather/fur treatment, etc. It can solve the problems of low polymerization activity, easy delamination, fatliquoring Solve problems such as poor agent performance, and achieve the effects of large output, reduced atomization value, and good self-emulsifying ability

Active Publication Date: 2020-03-17
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of product has poor stability, is easy to delaminate in summer, and has poor degradability
Although there are reports on the preparation of polymer fatliquors by copolymerizing vegetable oils with high iodine value as hydrophobic monomers and vinyl monomers containing carboxyl groups, the age of such products is relatively poor, mainly because vegetable oils Most of the double bonds are non-conjugated double bonds, the polymerization activity is low, and the grafting rate is low. Therefore, it is a good method to prepare polymer fatliquors by introducing active vinyl groups into vegetable oils and polymerizing them with carboxyl-containing vinyl monomers. Very good research direction, not only in line with the strategy of sustainable development, but also can obtain degradable polymer fatliquor with high grafting rate

Method used

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  • A kind of jatropha oil-based polymer fatliquoring agent and preparation method thereof
  • A kind of jatropha oil-based polymer fatliquoring agent and preparation method thereof
  • A kind of jatropha oil-based polymer fatliquoring agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The following are parts by mass

[0034] Step 1: Preparation of epoxy jatropha oil

[0035] Add 50 parts of jatropha oil, 9 parts of glacial acetic acid, and 0.75 parts of concentrated sulfuric acid into a 250ml three-necked flask and mix evenly, heat up to 30°C, drop 40 parts of hydrogen peroxide into the three-necked flask, add dropwise for 1 hour, and heat up to React at 60°C for 6 hours. After the reaction, cool to room temperature to remove water, wash with water until neutral, and obtain epoxy jatropha oil.

[0036] Step 2: Preparation of Acrylated Jatropha Oil

[0037] Add the epoxy jatropha oil, the reaction product of step 1, into a 250ml three-necked flask, add 0.5 parts of p-toluenesulfonic acid as a catalyst, add 0.1 parts of hydroquinone as a polymerization inhibitor, and slowly drop 15 parts of acrylic acid Into a three-necked flask, add dropwise for 0.5h, and react at 60°C for 3h to obtain acrylated jatropha oil.

[0038] Step 3: Preparation of Jatroph...

Embodiment 2

[0041] The following are parts by mass

[0042] Step 1: Preparation of epoxy jatropha oil

[0043] Add 48 parts of jatropha oil, 9.3 parts of glacial acetic acid, and 0.8 parts of concentrated sulfuric acid into a 250ml three-necked flask and mix evenly, raise the temperature to 30°C, add 42 parts of hydrogen peroxide dropwise into the three-necked flask, add dropwise for 1 hour, and heat up to React at 60°C for 6.5 hours. After the reaction, cool to room temperature to remove water in layers, wash with water until neutral, and obtain epoxy jatropha oil.

[0044] Step 2: Preparation of Acrylated Jatropha Oil

[0045] Add the epoxy jatropha oil, the reaction product of step 1, into a 250ml three-necked flask, add 0.45 parts of p-toluenesulfonic acid as a catalyst, add 0.2 parts of hydroquinone as a polymerization inhibitor, and slowly drop 15 parts of acrylic acid Into a three-necked flask, add dropwise for 0.5h, and react at 60°C for 3h to obtain acrylated jatropha oil.

[...

Embodiment 3

[0049] The following are parts by mass

[0050] Step 1: Preparation of epoxy jatropha oil

[0051]Add 45 parts of jatropha oil, 10 parts of glacial acetic acid, and 0.85 parts of concentrated sulfuric acid into a 250ml three-necked flask and mix evenly, heat up to 30°C, drop 45 parts of hydrogen peroxide into the three-necked flask, add dropwise for 1 hour, and heat up to React at 60°C for 6 hours. After the reaction, cool to room temperature to remove water, wash with water until neutral, and obtain epoxy jatropha oil.

[0052] Step 2: Preparation of Acrylated Jatropha Oil

[0053] Add the epoxy jatropha oil, the reaction product of step 1, into a 250ml three-necked flask, add 0.45 parts of p-toluenesulfonic acid as a catalyst, add 0.3 parts of hydroquinone as a polymerization inhibitor, and slowly drop 15 parts of acrylic acid Into a three-necked flask, add dropwise for 0.5h, and react at 60°C for 3h to obtain acrylated jatropha oil.

[0054] Step 3: Preparation of Jatrop...

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Abstract

The invention relates to a preparation method of a jatropha carcass oil base polymer fatting agent. The preparation method comprises the following steps: a, performing epoxidation on jatropha carcassoil by using hydrogen peroxide, glacial acetic acid and concentrated sulfuric acid so as to obtain epoxy jatropha carcass oil; b, by taking sodium p-toluenesulfonate as a catalyst, hydroquinone as a polymerization inhibitor, and acrylic acid as a nucleophilic reagent, performing a ring-opening reaction on the epoxy jatropha carcass oil so as to obtain acrylic acid esterified jatropha carcass oil,and introducing an active vinyl part to a plant oil molecular chain; and c, by taking 2,2'-azobis(2-methylpropionitrile) as a catalyst, and acetanilide as an anti-gel agent, adding maleic anhydride, acrylic acid and acrylic acid esterified jatropha carcass oil, and performing copolymerization, thereby obtaining the jatropha carcass oil base polymer fatting agent. Based on natural plant oil which is cheap and easily available as a raw material, the prepared polymer fatting agent is relatively good in cold water emulsification property and good in hydrophilcity, and is an environment-friendly and degradable fatting material.

Description

technical field [0001] The invention belongs to the technical field of leather chemical production, and in particular relates to a jatropha oil-based polymer fatliquoring agent and a preparation method thereof. Background technique [0002] Fatliquor is an important leather chemical in leather processing. Fatliquor can give leather a soft feel. Polymer fatliquor is a resinous fatliquor with amphiphilic structure. It has both It has a certain retanning effect, has a strong binding ability with leather, and has excellent waterproof performance. However, most of the petroleum-based polymer fatliquor products are currently used, which have poor degradability and cause serious pollution to the environment. With the depletion of petroleum resources, it is imminent to find alternative raw materials that are green and environmentally friendly. [0003] Jatropha curcas is planted in large quantities in the mountainous areas of southwest my country, and it has strong survival ability...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F290/08C08F220/06C08F222/06C14C9/02C14C3/14
CPCC08F290/08C14C3/14C14C9/02C08F220/06C08F222/06
Inventor 马建中于帅吕斌高建静
Owner SHAANXI UNIV OF SCI & TECH
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