CN-121991300-A - New high molecular weight resin material with instant drying function and preparation process thereof

Abstract

The invention relates to the technical field of high molecular compounds, in particular to a novel high molecular weight resin material with a flash drying function and a preparation process thereof, comprising the following steps: the epoxy resin is prepared by polymerization reaction of epichlorohydrin and an active hydrogen compound, wherein the polybasic acid comprises gluconic acid, white tartaric acid or malic acid, the polyhydric alcohol comprises ethylene glycol, propylene glycol or butanediol, the polyhydric alcohol and the polybasic acid are subjected to ester crosslinking reaction to form polyester resin, and the methyl methacrylate and the double bond of the acrylic acid monomer are subjected to ring-opening polymerization to form a polymer with high molecular weight. The invention has the characteristics of quick solidification, high durability, good fluidity and processing performance, flexibility in various applications and the like, so that the resin has wide application prospect in the fields of paint, adhesive, sealant and the like.

Inventors

• JIANG TENGYAO
• LI JINMING
• WANG QINGLIANG
• JIANG WENLONG

Assignees

• 江苏合特新材料有限公司

Dates

Publication Date

20260508

Application Date

20240105

Claims (10)

1. 1. A novel high molecular weight resin material with a flash drying function is characterized by comprising polybasic acid, a free initiator, a diluent, epoxy resin, polyalcohol, vegetable oil, acrylic acid monomer, methyl methacrylate, an organic solvent and a curing agent; The epoxy resin is obtained by polymerization reaction of epichlorohydrin and active hydrogen compounds, polybasic acid comprises one or more of gluconic acid, white tartaric acid and malic acid, polyhydric alcohol comprises one or more of ethylene glycol, propylene glycol and butanediol, the polyhydric alcohol and the polybasic acid are subjected to ester crosslinking reaction to form polyester resin, and methyl methacrylate and acrylic acid monomer double bonds are subjected to ring-opening polymerization reaction to generate a polymer with high molecular weight.
2. 2. A new high molecular weight resin material with flash-dry function according to claim 1, wherein the curing agent is phenol or amine.
3. 3. The novel high molecular weight resin material having a flash-drying function according to claim 1, wherein the hydroxyl group of the polyhydric alcohol and the carboxyl group of the polybasic acid are combined to form an ester bond, and a water molecule is generated.
4. 4. A new high molecular weight resin material with flash-dry function according to claim 1, characterized in that the free initiator is benzoyl oxide.
5. 5. The new high molecular weight resin material with flash drying function according to claim 1, wherein the organic solvent is methanol, ethanol, propanol, butanol, hexanol, acetone, methyl ethyl ketone, methyl formate, ethyl acetate or dibutyl phthalate.
6. 6. A new high molecular weight resin material with flash-dry function according to claim 1, characterized in that the diluent is an alcohol, ketone, ester or ether.
7. 7. A preparation process of a new high molecular weight resin material with a flash drying function is characterized by comprising the following steps: s1, providing a precise ratio mixture of vegetable oil, polyalcohol and polybasic acid; s2, putting the provided mixture into a four-neck flask, and accurately obtaining resin with acid value not more than 14 through esterification reaction at high temperature (210-240 ℃); s3, precisely cooling the reaction mixture to 140 ℃; S4, accurately starting to drop the prepared mixed acrylic acid monomer, wherein the drop temperature is controlled within the range of 130-140 ℃, and the drop time is accurately controlled within 3-4 hours; s5, after the dripping is completed, carrying out accurate heat preservation for 1 hour; S6, accurately raising the reaction temperature to 160-180 ℃ and carrying out accurate chain extension for 2 hours; s7, precisely reducing the temperature to 150 ℃ after chain extension is finished; S8, accurately and slowly adding the ester organic solvent, and stirring for 40 minutes; and S9, finally obtaining the high molecular weight resin with the instant drying function, wherein the appearance of the resin is a yellowish transparent thick body, and the resin shows excellent instant drying function.
8. 8. The process for preparing a new high molecular weight resin material with flash drying function according to claim 7, wherein the solid content of the resin is 58-62%.
9. 9. The process for preparing a new high molecular weight resin material having an instant drying function according to claim 7, wherein the viscosity of the resin is 15000-25000CPs at 25 ℃.
10. 10. The process for preparing a new high molecular weight resin material having an instant drying function according to claim 7, wherein the acid value of the resin is not more than 7.

Description

New high molecular weight resin material with instant drying function and preparation process thereof Technical Field The invention relates to the technical field of high molecular compounds, in particular to a novel high molecular weight resin material with a flash drying function and a preparation process thereof. Background Along with the wide application of the high molecular compound in various industrial fields, the development of the high molecular weight resin with the instant drying function becomes a research direction which is focused, and the resin has unique properties including rapid solidification, high molecular weight and excellent performance, so that the resin is widely applied in the fields of coating, adhesive, printing ink and the like. The traditional high molecular weight resin synthesis method is often limited by some limitations, such as long reaction time, complex preparation, high cost and the like, and more importantly, some high molecular weight resins may have defects of overlong drying time, non-ideal curing speed and the like when being applied, which brings challenges to some industries needing rapid production. Disclosure of Invention The invention aims to provide a new high molecular weight resin material with an instant drying function and a preparation process thereof, so as to solve the problems in the prior art. In order to achieve the above purpose, the present invention provides the following technical solutions: A new high molecular weight resin material with instant drying function comprises polybasic acid, free initiator, diluent, epoxy resin, polyalcohol, vegetable oil, acrylic acid monomer, methyl methacrylate, organic solvent and curing agent; The epoxy resin is obtained by polymerization reaction of epichlorohydrin and active hydrogen compounds, polybasic acid comprises one or more of gluconic acid, white tartaric acid and malic acid, polyhydric alcohol comprises one or more of ethylene glycol, propylene glycol and butanediol, the polyhydric alcohol and the polybasic acid are subjected to ester crosslinking reaction to form polyester resin, and methyl methacrylate and acrylic acid monomer double bonds are subjected to ring-opening polymerization reaction to generate a polymer with high molecular weight. As a still further preferred embodiment of the present invention, the curing agent is a phenol or an amine. As a still further preferred embodiment of the present invention, the hydroxyl groups of the polyhydric alcohol and the carboxyl groups of the polybasic acid are bonded to form an ester bond, and a water molecule can be formed when the ester bond is formed. As a still further preferred embodiment of the present invention, the free initiator is benzoyl oxide. As a still further preferred embodiment of the present invention, the organic solvent is methanol, ethanol, propanol, butanol, hexanol, acetone, methyl ethyl ketone, methyl formate, ethyl acetate or dibutyl phthalate. As a still further preferred embodiment of the present invention, the diluent is an alcohol, ketone, ester or ether. A preparation process of a new high molecular weight resin material with a flash drying function is characterized by comprising the following steps: s1, providing a precise ratio mixture of vegetable oil, polyalcohol and polybasic acid; s2, putting the provided mixture into a four-neck flask, and accurately obtaining resin with acid value not more than 14 through esterification reaction at high temperature (210-240 ℃); s3, precisely cooling the reaction mixture to 140 ℃; S4, accurately starting to drop the prepared mixed acrylic acid monomer, wherein the drop temperature is controlled within the range of 130-140 ℃, and the drop time is accurately controlled within 3-4 hours; s5, after the dripping is completed, carrying out accurate heat preservation for 1 hour; S6, accurately raising the reaction temperature to 160-180 ℃ and carrying out accurate chain extension for 2 hours; s7, precisely reducing the temperature to 150 ℃ after chain extension is finished; S8, accurately and slowly adding the ester organic solvent, and stirring for 40 minutes; and S9, finally obtaining the high molecular weight resin with the instant drying function, wherein the appearance of the resin is a yellowish transparent thick body, and the resin shows excellent instant drying function. As a still further preferred embodiment of the present invention, the resin has a solids content of 58-62%. As a still further preferred embodiment of the present invention, the viscosity of the resin is 15000-25000CPs at 25 ℃. As a still further preferred embodiment of the present invention, the acid value of the resin is not more than 7. Compared with the prior art, the invention has the beneficial effects that: The invention is controlled by accurate steps, including dripping and mixing acrylic acid monomer and chain extension, the resin has instant drying function, namely, a firm structure is formed in a short