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A kind of synthetic method of soybean oil rosin modified phenolic resin for soybean ink and modified phenolic resin

A technology of soybean ink and phenolic resin, which is applied in the field of phenolic resin, can solve the problems of poor solubility and difficulty in meeting environmental protection standards for offset printing soybean ink varieties, and achieve good printing performance, excellent solubility, and low overall printing cost.

Active Publication Date: 2016-08-24
中山市康和化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the biggest problem facing offset printing soybean inks is that the rosin-modified phenolic resin used has poor solubility in soybean oil, which often requires a certain amount of mineral oil, making it difficult for most offset printing soybean inks to achieve absolute Environmental protection standard of zero VOC

Method used

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  • A kind of synthetic method of soybean oil rosin modified phenolic resin for soybean ink and modified phenolic resin
  • A kind of synthetic method of soybean oil rosin modified phenolic resin for soybean ink and modified phenolic resin

Examples

Experimental program
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Effect test

Embodiment 1

[0038] The synthetic method of soybean oil rosin modified phenolic resin for soybean ink provided by the present embodiment may further comprise the steps:

[0039] (1) Combine 1kg soybean oil and 5g SO 4 2- / ZrO 2 -TiO 2 Mix, heat up to 60°C, and drop 2.25kg of hydrogen peroxide with a mass percentage of 20% at a constant speed under stirring. After the dropwise addition, raise the temperature to 80°C and react for 6 hours, and finally vacuum dehydrate to obtain about 1.45kg of epoxide Soybean oil;

[0040] (2) Add 2.2kg of nonylphenol, 5.7kg of formaldehyde and 22.0g of catalyst oxalic acid into the reaction kettle, keep stirring fully throughout the process, first raise the temperature to 60°C, and stop the reaction after 4 hours of reaction, then add dilute alkali solution (dilute ammonia aqueous solution) to adjust the pH of the system to ≥ 6, then repeatedly washed with water until neutral, and finally vacuum dehydrated to obtain about 7kg of resole phenolic resin pr...

Embodiment 2

[0043] (1) Combine 1kg soybean oil and 10g SO 4 2- / ZrO 2 -TiO 2 Mix, heat up to 70°C, add 2.75kg of hydrogen peroxide with a mass concentration of 20% dropwise at a constant speed under stirring, raise the temperature to 85°C and react for 8 hours after the dropwise addition, and finally vacuum dehydrate to obtain about 1.55kg of epoxidized soybean oil ;

[0044] (2) Add 1.8kg of mixed phenol (p-tert-butylphenol and nonylphenol are mixed at a mass ratio of 1:1), 1.8kg of formaldehyde and 0.36kg of catalyst oxalic acid into the reactor, keep fully stirring throughout the process, firstly raise the temperature to 70 ℃, after 6 hours of reaction, stop the reaction, then add dilute alkali solution (dilute NaOH solution) to adjust the pH of the system to ≥ 6, then repeatedly wash with water until neutral, and finally vacuum dehydrate to obtain about 3kg resole phenolic resin prepolymer;

[0045] (3) Add 1.55kg of epoxidized soybean oil and 38.75g of N,N-dimethyl-1,3-propanedia...

Embodiment 3

[0047] (1) Combine 1kg soybean oil and 6.0g super strong solid acid SO 4 2- / ZrO 2 -Fe 2 o 3 -MnO 2 Mix, heat up to 65°C, add 2.5kg of hydrogen peroxide with a mass concentration of 20% at a constant speed under stirring, raise the temperature to 80°C and react for 7 hours after the addition, and finally vacuum dehydrate to obtain about 1.5kg of epoxidized soybean oil ;

[0048] (2) Add 1.8kg of mixed phenol (p-tert-butylphenol and p-tert-octylphenol are mixed at a mass ratio of 1:1), 3.6kg of formaldehyde and 0.18kg of catalyst oxalic acid into the reaction kettle, keep stirring fully throughout the process, first raise the temperature After reacting for 5 hours at 65°C, stop the reaction, then add dilute alkali solution to adjust the pH of the system to ≥ 6, then repeatedly wash with water until neutral, and finally vacuum dehydrate to obtain about 4.6kg resole phenolic resin prepolymer;

[0049] (3) Add 1.5kg of epoxidized soybean oil and 15.0g of diaminodiphenylmetha...

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Abstract

The invention discloses a synthetic method of soybean oil rosin modified phenolic resin for soybean oil ink. The synthetic method mainly comprises the three steps: firstly, synthesizing epoxidized soybean oil with higher epoxy value, then, reacting and synthesizing a phenolic resin oligomer and finally, carrying out crosslinking and chemical modification on the oligomer by utilizing the epoxidized soybean oil, rosin and polyhydric alcohol to prepare the soybean oil rosin modified phenolic resin for the soybean oil ink. The invention also discloses the soybean oil rosin modified phenolic resin for the soybean oil ink prepared by the synthetic method. The synthetic method of the soybean oil rosin modified phenolic resin for the soybean oil ink and the soybean oil rosin modified phenolic resin for the soybean oil ink have the advantages that the dissolving property of the finally-prepared soybean oil rosin modified phenolic resin in the soybean oil is excellent; when the soybean oil rosin modified phenolic resin is used for preparing offset printing soybean oil ink, no mineral oil is needed, so that the soybean oil ink meets the strictest environmental protection requirements for zero VOC (Volatile Organic Compound); moreover, the soybean oil rosin modified phenolic resin has good printing performance, good online stability and low comprehensive printing cost and can replace many related products in the market, thereby having a very wide application potential.

Description

technical field [0001] The invention belongs to the technical field of phenolic resins, and in particular relates to a method for synthesizing soybean oil rosin-modified phenolic resins for soybean inks and the modified phenolic resins. Background technique [0002] Rosin-modified phenolic resin is the most widely used resin for offset printing ink because of its high softening point, good solubility in aliphatic hydrocarbons, and good wettability to pigments and fillers. The synthesis process of rosin-modified phenolic resin is firstly that phenolic substances and aldehydes undergo condensation reactions to form methylol condensates; the generated methylol condensates further react with phenolic substances to form novolac polycondensates; It is then chemically modified with rosin and esterified with polyols. [0003] At present, the domestic production of rosin-modified phenolic resin mainly has two methods: "one-step method" and "two-step method". Among them, the "one-st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G8/34C08G8/32C09D11/103
Inventor 林跃华聂建华陈志国杨小艳刘兴高龙清平林秋云
Owner 中山市康和化工有限公司
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