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Cation gum rosin and preparing method thereof

A technology for cationic rosin gum and rosin, which is applied in the field of cationic rosin gum and its preparation, can solve the problems of affecting the use effect of rosin gum, unsatisfactory stirring effect, and increase the difficulty of operation, so as to shorten the production time, eliminate the dead angle of stirring, and reduce the production cost effect

Inactive Publication Date: 2017-01-04
SHANGHAI DONGSHENG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process of increasing the stirring speed step by step increases the difficulty of operation, and the stirring effect is not ideal, and it is prone to disadvantages such as raw material, large particle size, and wide distribution range, which affects the use effect of rosin gum.

Method used

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  • Cation gum rosin and preparing method thereof

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preparation example Construction

[0027] The invention provides a kind of cationic rosin gum preparation method, comprises the following steps:

[0028] Step 1, add rosin and fortified rosin mixture at the bottom of the reaction kettle, heat to 150°C to melt;

[0029] Step 2: Add an emulsifier to the kettle at one time, turn on the ultrasonic emulsification machine and keep the reactants in the reactor ultrasonically emulsified for 10-60 minutes;

[0030] Step 3: Slowly add deionized water preheated at 80±2°C into the reaction kettle dropwise, and turn off the ultrasonic emulsification machine after dropping;

[0031] Step 4: Cool the material in the reactor to below 30°C, add aluminum salt solution and cold deionized water, adjust the solid content to 35%, and filter the material to obtain cationic rosin gum.

Embodiment 1

[0034] Add 100g of rosin and 200g of strengthened rosin mixture to the bottom of the reaction kettle, heat it to about 150°C to melt, and start the ultrasonic emulsification machine; add 80g of emulsifier OP-10 to the kettle at one time, and keep ultrasonic emulsification for 30min; keep 200g of deionized water at 80 ℃, slowly drop into the reaction kettle, the dropping time is 5min, close the ultrasonic emulsifier after the dropwise addition, cool the material in the reaction kettle to below 30℃, add 50g of aluminum sulfate and cold deionized water, adjust the solid content to After 35%, filter the discharge.

Embodiment 2

[0036] Add 150g of rosin and 100g of enhanced rosin mixture to the bottom of the reaction kettle, heat it to about 150°C to melt, and start the ultrasonic emulsification machine; add 80g of emulsifier NP-10 to the kettle at one time, and keep ultrasonic emulsification for 30min; keep 200g of deionized water at 80 At about ℃, slowly drop it into the reaction kettle, the dropping time is 5min, turn off the ultrasonic emulsifier after dropping, cool the material in the reaction kettle to below 30℃, add 50g of aluminum chloride and cold deionized water to adjust the solid content After being 35%, filter the discharge.

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Abstract

The invention discloses the cation gum rosin and preparing method thereof. The method comprises the steps of 1, putting the mixture of rosin and fortified resin to the reactor and heating it to 150oC for fusion; 2, adding the emulgator one time and turning on the ultrasonic homogenization machine to keep ultrasonic homogenization on the reactant in the reactor for 10-60min; 3, dropping slowly the 80+-2oCpreheating deionized water to the reactor and turning off the ultrasonic homogenization machine after finishing the instillment; 4, reducing the temperature of the material in the reactor to less than 30oC, adding the aluminum salt solution and cold deionized water and adjusting the solid content to 35%. The material gained after filtration is the Cation gum rosin. This invention adds the ultrasonic homogenization technology at the emulsification stage of preparing gum rosin, which maximizes the micronization, emulsification, mixture, even stir and dispersion of the solid particle, such as the rosin in a short time, improves the emulsification efficiency and reduces the production cost, preparing the products with fine granularity, small foam, high whiteness and better stability.

Description

technical field [0001] The invention relates to the technical field of polymer synthesis, in particular to a cationic rosin gum and a preparation method thereof. Background technique [0002] Cationic dispersed rosin gum, as the third generation product of rosin series, has many advantages, such as free rosin contains [0003] It can save about 50% of the amount of rosin and 30% of the amount of aluminum sulfate. At the same time, it can increase the pH value of the net, reduce the pollution of white water, and improve the sizing degree, whiteness and strength of paper. [0004] At present, the process of preparing cationic rosin gum is the phase inversion method under normal temperature and pressure. This preparation process requires high-speed mechanical stirring (300-1200 rpm) to disperse and mix the system when adding the emulsifier dropwise. For example, CN1081262C and CN2032111A adopt nonionic emulsifier-cationic emulsifier intermixing emulsification system, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/62D21H21/16
CPCD21H17/62D21H21/16
Inventor 施晓旦王虎金霞朝
Owner SHANGHAI DONGSHENG NEW MATERIALS
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