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Modified resin liquid and preparation method thereof

A technology for modifying resins and resins, applied in building components, building insulation materials, buildings, etc., can solve the problems of poor compatibility between rubber oil and rubber, cumbersome processing procedures, loss of aromatic hydrocarbon content, etc. The effect of reducing environmental pollution

Inactive Publication Date: 2020-12-11
JIANGSU QIXIANG HIGH NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solvent refining is a technology that uses the selective solubility of solvents to remove harmful or non-ideal components in oils. For example, CN200910088932.5 and CN201010228871.0 both obtain environmentally friendly rubber oil through this method; although solvent refining can ensure the content of aromatics , but in order to remove polycyclic aromatic hydrocarbons in rubber oil, multiple refinements are required, resulting in a low product yield; in addition, refinement needs to introduce multiple steps such as mixing, extraction, steam stripping, flash evaporation, etc., and the processing cost is high; adding Hydrogen treatment refers to the conversion of non-ideal components into ideal components or small molecular hydrocarbons through catalytic hydrogenation to achieve the purpose of removal. In addition, olefins and dienes are hydrogenated and saturated, and aromatics are partially hydrogenated and saturated to improve oil quality. quality
However, the hydrogenation treatment process will cause a large loss of aromatics content, resulting in poor compatibility between rubber oil and rubber
Therefore, in order to ensure that the rubber oil has a certain aromatic content, hydrogenation treatment and solvent refining are usually combined to produce environmentally friendly rubber oil, but the processing procedure is cumbersome and the cost is high, and the finished product still contains 8 kinds of polycyclic aromatic hydrocarbons (PAHs).

Method used

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  • Modified resin liquid and preparation method thereof
  • Modified resin liquid and preparation method thereof
  • Modified resin liquid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1. In a four-neck flask, dissolve 800g of C9 resin in 400g of naphthenic oil KN4006, and keep melting at 100-120°C;

[0028] 2. Add 4.8g AlCl to the reaction system 3 Catalyst, after stirring for half an hour;

[0029] 3. Add 40g of phenol, keep the system temperature at 100-120°C, and stir continuously for 1-3h;

[0030] 4. Add hexamethylenediamine to the reaction solution to adjust the reaction solution to neutral to obtain a modified resin solution.

Embodiment 2

[0032] 1. In a four-necked flask, dissolve 600g of asphalt resin in 400g of naphthenic oil KN4006, and keep melting at 100-120°C;

[0033] 2. Add 4g of boron trifluoride ether catalyst into the reaction system, and stir for half an hour;

[0034] 3. Add 40g phenol and 40g coumarone resin, keep the system temperature at 100-120°C, and stir continuously for 1-3h;

[0035] 4. Add ethylenediamine to the reaction solution to adjust the reaction solution to neutral to obtain a modified resin solution.

Embodiment 3

[0037] 1. In a four-necked flask, dissolve 400g of asphalt resin in 400g of naphthenic oil KN4010, and keep melting at 100-120°C;

[0038] 2. Add 4g of p-toluenesulfonic acid catalyst into the reaction system and stir for half an hour;

[0039] 3. Add 60g of cardanol, keep the system temperature at 100-120°C, and stir continuously for 1-3h;

[0040] 4. Add triethylamine to the reaction solution to adjust the reaction solution to neutral to obtain a modified resin solution.

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Abstract

The invention discloses modified resin liquid and a preparation method thereof. The preparation method of the modified resin liquid comprises the following steps: 1, dissolving resin R in dissolving oil 01 and fully performing melting and dispersing; (2) adding a catalyst L and continuously stirring uniformly; (3) adding a modifier B, and modifying while heating and stirring; and (4) after the modification is finished, adding an acid-base regulator, and regulating the reaction solution to be neutral to obtain a modified resin solution. The modified resin liquid provided by the invention is very low in polycyclic aromatic hydrocarbon content, and can be directly blended with raw oil to prepare rubber oil, and the prepared rubber oil has very good compatibility with rubber while the polycyclic aromatic hydrocarbon content meets the European Union standard; the method is rich in used raw materials, simple in process, low in cost and convenient for industrial popularization.

Description

technical field [0001] The invention belongs to the technical field of rubber industry and relates to the processing of rubber oil, in particular to a modified resin liquid which can be used for blending and preparing rubber oil and a preparation method thereof. Background technique [0002] Rubber oil is a processing aid used in the production of rubber products. It can significantly improve the processing performance of rubber, and its performance directly affects the quality of rubber products. In the past, domestic rubber oil basically used unrefined or very low-refined mineral oil, mostly high-aromatic by-product oil extracted from refineries, mainly used in tire production. Aromatic oil has good compatibility with rubber and can give tires good wet skid resistance and other superior properties. It has been widely used in oil-extended rubber and tire companies at home and abroad. In-depth, the problem that aromatic oil contains carcinogenic polycyclic aromatic hydrocar...

Claims

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Application Information

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IPC IPC(8): C08L57/02C08L95/00C08L45/00C08L45/02C08L91/06C08F8/00C08F240/00C08F32/08
CPCC08F8/00C08L45/00C08L57/02C08L91/06C08L95/00C08F240/00C08L45/02C08F32/08
Inventor 徐黎明彭华龙王莹莹
Owner JIANGSU QIXIANG HIGH NEW MATERIAL