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Vegetable fat-based latex, preparation method and application thereof

A vegetable oil-based latex technology, which is applied in the field of preparation and vegetable oil-based latex, can solve the problems of the use, preparation and performance research of pure vegetable oil latex.

Pending Publication Date: 2021-08-13
ANHUI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are not many researches on the preparation methods and properties of vegetable oil-based latex at home and abroad. Most of them are used as additives, and seldom used as bulk materials. There are very few researches on the preparation and properties of pure vegetable oil latex.

Method used

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  • Vegetable fat-based latex, preparation method and application thereof
  • Vegetable fat-based latex, preparation method and application thereof
  • Vegetable fat-based latex, preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Preparation of tallow tree oil epoxy latex: 100 parts by weight of tallow tree oil epoxy monomer, 200 parts of deionized water, 5 parts of emulsifier, 5 parts of emulsifier, and 0.5 part of PH regulator are stirred and ultrasonically alternated for about 1 hour Mix evenly to form a pre-emulsion, take about 20% by weight of the pre-emulsion in a three-necked flask as a primer, heat to 60°C, add 0.3 parts by weight of an initiator to react for 30 minutes, and start to drop the remaining pre-emulsion at a rate of about 3 seconds / drop. After the remaining pre-emulsion is added dropwise, add 0.3 part of initiator and continue the reaction for 4 hours, then raise the temperature to 80°C and keep it warm for 30 minutes, and finally cool down to room temperature and pass through a nylon filter to obtain tallow catalpa oil epoxy emulsion.

[0038] Such as figure 1 Shown, wherein vegetable oil base fatty acid epoxy monomer: the preparation process of tallow tree oil epoxy monom...

Embodiment 2

[0052] Preparation of palm oil epoxy latex: 200 parts by weight of palm oil epoxy monomer, 400 parts of deionized water, 10 parts of emulsifier, 10 parts of co-emulsion agent, and 1 part of pH regulator are uniformly mixed by stirring and ultrasonic to form a pre-emulsion . Get about 20% by weight of the pre-emulsion in a three-necked flask, heat it to 60 ° C, add 0.6 parts by weight of the initiator to react for 30 minutes, and start to drop the remaining pre-emulsion at a rate of about 5 seconds / drop. After the remaining pre-emulsion was added dropwise, 0.6 parts by weight of initiator was added to continue the reaction for 5 hours, the temperature was raised to 80° C. for 30 minutes, and the temperature was finally cooled to room temperature and passed through a nylon filter to obtain palm oil epoxy latex.

[0053] Wherein vegetable oil-based fatty acid epoxy monomer: the preparation process of palm oil epoxy monomer is the same as embodiment one.

[0054] The preparation ...

Embodiment 3

[0056] The preparation of high oleic rapeseed oil epoxy latex: 150 parts by weight of high oleic rapeseed oil epoxy monomer, 300 parts of deionized water, 7.5 parts of emulsifier, 7.5 parts of co-emulsion agent, 0.75 part of pH regulator through Stirring and ultrasonic mixing uniformly form a pre-emulsion. Take about 20% by weight of the pre-emulsion in a three-necked flask, heat it to 60° C., add 0.45 parts by weight of an initiator to react for 30 minutes, and start to drop the remaining pre-emulsion at a rate of about 4 seconds / drop. After the remaining pre-emulsion is added dropwise, add 0.45 parts of initiator to continue the reaction for 3 hours, heat up to 80°C and keep warm for 30 minutes, and finally cool down to room temperature and pass through a nylon filter to obtain high oleic rapeseed oil epoxy emulsion.

[0057] Wherein the vegetable oil-based fatty acid epoxy monomer: the preparation process of the high oleic rapeseed oil epoxy monomer is the same as in Exampl...

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Abstract

The invention provides vegetable oil-based latex, which is synthesized by taking vegetable oil as a raw material, and is a bio-based material, wherein the epoxidized vegetable oil monomer has a conversion rate of more than 98%, so that the requirement of emulsion polymerization is met. According to the invention, the vegetable fat-based latex prepared through emulsion polymerization can be directly coated on a base material to be dried in the air to complete adhesion to be used as a pressure-sensitive adhesive, and can also be dried in the air to be heated and cured to be used as a thermosetting adhesive, and tests show that the latex has good adhesion; and the vegetable fat-based latex can be used as bio-based epoxy resin after being cured at high temperature by adding a curing agent, and the cured epoxy resin has excellent mechanical properties.

Description

technical field [0001] The invention relates to the technical field of bio-based latex, in particular to a vegetable oil-based latex, a preparation method and an application thereof. Background technique [0002] The main component of vegetable oil is fatty acid triglyceride, and fatty acid accounts for about 95% of the total weight of triglyceride. Due to the variety and origin of oil crops, the length and degree of unsaturation of fatty acid chains are also different. Common fatty acids include palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, etc. For example, the fatty acids in palm oil are mainly palmitic acid, oleic acid and linoleic acid, rapeseed oil, soybean oil and high oleic acid Sunflower oil is mainly composed of oleic acid and linoleic acid, and tallow tree oil is mainly composed of linoleic acid, linolenic acid and oleic acid. In addition to these common components, there are also some special components, such as tungoleic acid in tung o...

Claims

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Application Information

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IPC IPC(8): C09J163/00C09J7/38
CPCC09J163/00C09J7/38
Inventor 汪钟凯刘伟王钟武梅
Owner ANHUI AGRICULTURAL UNIVERSITY
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