Supercharge Your Innovation With Domain-Expert AI Agents!

Modified phenolic resin for dry material, preparation method for modified phenolic resin and dry material

A technology of phenolic resin and dry material, applied in the field of phenolic resin, can solve the problems of carbon increase and high carbon content, and achieve the effects of low flexural strength, improved compressive strength and maintenance of mechanical properties

Active Publication Date: 2014-03-12
营口圣泉高科材料有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese patent document with the publication number CN101864154A discloses a dry-type material resin, which is mixed uniformly with 50wt% to 70wt% of polyester and 30wt% to 50wt% of phenolic resin, and then added to account for the total amount of polyester and phenolic resin. 5% to 10% of the weight of floating beads is mixed evenly again, and it is ground into a powdery resin of 180 to 220 meshes, which can be used as a bonding resin for dry materials. The preparation method of this resin is simple, but its carbon content is high, and carbonization The final residual carbon will still cause problems such as carburization of molten steel

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Modified phenolic resin for dry material, preparation method for modified phenolic resin and dry material
  • Modified phenolic resin for dry material, preparation method for modified phenolic resin and dry material

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0020] The invention provides a kind of preparation method of modified phenolic resin for dry type material, comprising the following steps:

[0021] a) the phenolic compound and the aldehyde compound react under the action of an acidic catalyst to obtain a phenolic resin;

[0022] b) adding a modifying agent to the phenolic resin obtained in the step a), and reacting to obtain a modified phenolic resin for dry-type materials, and the modifying agent is rosin resin waste, coumarone resin waste or epoxy resin waste .

[0023] The invention uses rosin resin waste, coumarone resin waste or epoxy resin waste as a modifier to modify the phenolic resin, the preparation method is simple, the modifier is cheap and easy to obtain, and the cost is reduced while ensuring the performance of the phenolic resin .

[0024] In the present invention, phenolic compounds and aldehyde compounds are used as raw materials to react under the action of an acidic catalyst to obtain phenolic resins. ...

Embodiment 1

[0047] Add phenol, formaldehyde, and hydrochloric acid into the reaction kettle according to the mass ratio of 1:0.33:0.01, heat and stir to 75°C, and after constant temperature reaction for 1.5h, add formaldehyde to make the mass ratio of phenol to 0.85:1, 1h After adding the formaldehyde, the temperature was raised to 100° C., and the phenolic resin was obtained by constant temperature reaction for 1.5 hours; the rosin resin waste material that accounted for 40% of the total mass of phenol and formaldehyde was added to the phenolic resin, and the constant temperature was reacted for 1 hour, and then dehydrated under normal pressure. The modified phenolic resin was obtained after discharge, wherein the waste rosin resin was purchased from Hengshui Zehao Rubber Chemical Co., Ltd.

[0048] The free phenol content and carbon residue rate of the modified phenolic resin were tested, and the results are shown in Table 1. Table 1 shows the test results of the phenolic resin provided ...

Embodiment 2

[0050] Add phenol, formaldehyde, and hydrochloric acid into the reaction kettle according to the mass ratio of 1:0.33:0.01, heat and stir to 75°C, after constant temperature reaction for 1.5h, add formaldehyde to make the mass ratio of phenol to 0.8:1, 1h After adding formaldehyde, the temperature was raised to 100° C., and the constant temperature reaction was carried out for 2 hours to obtain the phenolic resin; the rosin resin waste which accounted for 60% of the total mass of phenol and formaldehyde was added to the phenolic resin, and the constant temperature reaction was carried out for 1 hour. The modified phenolic resin was obtained after the raw material, and the rosin resin waste was purchased from Jinan Zhongyan Chemical Development Co., Ltd.

[0051] The free phenol content and carbon residue rate of the modified phenolic resin were tested, and the results are shown in Table 1. Table 1 shows the test results of the phenolic resin provided in the examples and compara...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
quality scoreaaaaaaaaaa
Login to View More

Abstract

The invention provides a preparation method for a modified phenolic resin for a dry material. The method comprises the following steps of: a) reacting a phenolic compound with an aldehyde compound under the action of an acid catalyst to obtain a phenolic resin; and b) adding a modifier into the phenolic resin obtained by the step a), and performing reaction to obtain the modified phenolic resin for the dry material, wherein the modifier is rosin resin waste, coumarone-indene resin waste or epoxy resin waste. The invention also provides the modified phenolic resin for the dry material. The modified phenolic resin is obtained by modifying the phenolic resin by using the rosin resin waste, the coumarone-indene resin waste or the epoxy resin waste, and has the carbon yield of 20 to 30 percent at 800 DEG C. The invention also provides the dry material. Experiments show that the carbon yield of the modified phenolic resin prepared by the method is decreased from 50 percent to 20 to 30 percent, that all the compressive strength, breaking strength and the like of the dry material prepared from the modified phenolic resin are not weakened, and that the compressive strength of the dry material is strengthened to a certain extent instead.

Description

technical field [0001] The invention belongs to the technical field of phenolic resins, and in particular relates to a modified phenolic resin for a dry-type material, a preparation method thereof and a dry-type material. Background technique [0002] The tundish smelting technology is an important part of the continuous casting process, and the service life and quality of the refractories used in the tundish are one of the key factors affecting the quality of the continuous casting billet. The prior art discloses a variety of working linings for intermediate panels, such as brick linings, thermal insulation panel linings, spray coatings, dry vibrating materials, etc. Among them, the dry vibrating materials are referred to as vibrating materials for short, and they are easy to harden during baking; The back lining has high strength; good integrity in use; resistant to erosion and erosion of molten steel and slag liquid; easy to separate from the permanent layer after use; ea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08G8/28C08G8/34C04B35/04C04B35/634
Inventor 唐一林江成真李枝芳魏务翠梁敬翠任延青魏玉青胡伟袁善菊
Owner 营口圣泉高科材料有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com