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Preparation method of ultrasonic-assisted starch/rosin clathrate-based modified filler

A technology of ultrasonic waves and clathrates, applied in the direction of fibrous fillers, inorganic compound additions, chemical instruments and methods, etc., can solve the problems of negative impact of sizing agent application efficiency on paper strength performance, improve hydrophobic performance and improve bonding force, the effect of mitigating negative effects

Active Publication Date: 2014-10-29
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The present invention aims to solve the problem that the existing inorganic filler has a negative impact on the strength performance of paper and the application efficiency of the sizing agent, and provides a method for preparing a starch / rosin inclusion complex-based modified filler assisted by ultrasonic waves

Method used

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  • Preparation method of ultrasonic-assisted starch/rosin clathrate-based modified filler
  • Preparation method of ultrasonic-assisted starch/rosin clathrate-based modified filler
  • Preparation method of ultrasonic-assisted starch/rosin clathrate-based modified filler

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specific Embodiment approach 1

[0020] Embodiment 1: A method for preparing starch / rosin inclusion compound-based modified filler assisted by ultrasonic waves in this embodiment is carried out according to the following steps:

[0021] 1. Preparation of gelatinized starch: mix starch and water evenly, then gelatinize, the gelatinization temperature is 60-100°C, and the gelatinization time is 0.5h-2h to obtain gelatinized starch; the starch and water The mass ratio is 1: (10-100);

[0022] Two, the preparation of rosin saponification liquid: adopt saponification agent to carry out saponification treatment to rosin, saponification temperature is 60~100 ℃, saponification treatment time is 0.5h~4h, obtains rosin saponification liquid; The mass ratio of described saponification agent and rosin is 1: (2~30);

[0023] 3. Preparation of starch / rosin inclusion complex aqueous system: mix the gelatinized starch obtained in step 1 with the rosin saponification liquid obtained in step 2, and then perform ultrasonic tre...

specific Embodiment approach 2

[0026] Embodiment 2: This embodiment differs from Embodiment 1 in that: the gelatinization temperature described in step 1 is 95° C., and the gelatinization time is 1 hour. Other steps and parameters are the same as those in the first embodiment.

specific Embodiment approach 3

[0027] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the mass ratio of starch to water in Step 1 is 1:32. Other steps and parameters are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a preparation method of an ultrasonic-assisted starch / rosin clathrate-based modified filler, relates to the pulping and paper-making engineering field, in particular relates to the preparation method of the ultrasonic-assisted starch / rosin clathrate-based modified filler, and aims to solve the problem that: inorganic fillers in the prior art have negative effects on the strength properties of finished paper and the application efficiency of sizing agents. The method is as follows: 1, gelatinized starch preparation; 2, rosin saponification liquid preparation; 3, starch / rosin clathrate water-containing system preparation; and 4, starch / rosin clathrate-based modified filler preparation. The preparation method significantly improves the binding force of the inorganic fillers and pulp fiber, and reduces the filling-caused negative effects on the strength properties of the finished paper; the hydrophobic properties of the finished paper can be significantly improved by clathration of hydrophobic rosin in the cavity structure of starch, and the papermaking sizing agent dosage can be reduced.

Description

technical field [0001] The invention relates to the field of pulping and papermaking engineering, in particular to a method for preparing a starch / rosin clathrate-based modified filler assisted by ultrasonic waves. Background technique [0002] In the paper industry, inorganic fillers are widely used in printing paper / writing paper. The application of papermaking fillers can reduce papermaking costs, improve printing / writing performance, etc., and can reduce papermaking energy consumption, which has important application value. [0003] However, with the increase of filler content, the negative impact of filling on the paper strength properties becomes more and more significant, thus limiting the filling amount within a certain range to a large extent. This is mainly because: the binding force of inorganic fillers and pulp fibers (cellulose fibers) has great limitations. [0004] In terms of alleviating the negative impact of filling on paper strength properties, generally...

Claims

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Application Information

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IPC IPC(8): C09C1/02C09C3/00C09C3/06C09C3/10D21H17/69
Inventor 沈静黄修杰钱学仁娄爽
Owner NORTHEAST FORESTRY UNIVERSITY
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