阅读说明：本技术 一种基于非木材纤维的造纸助剂及其制备方法 (Papermaking auxiliary agent based on non-wood fibers and preparation method thereof ) 是由 刘晓群 昔康 陈小明 于 2020-12-03 设计创作，主要内容包括：本发明公开了一种基于非木材纤维的造纸助剂,按质量份数计,该基于非木材纤维的造纸助剂的配方包括：填料100-200份、留助滤剂15-35份、草酸10-20份、烷基磺酸8-15份、任基酚聚氧乙烯醚磺酸钠5-8份、异辛基聚氧乙烯醚1-3份、丙烯酰胺10-20份、乳化剂15-25份、增稠剂8-25份、金属过氧化物10-30份。本发明采用羧甲基纤维素、纳米二氧化硅以及硼砂中的一种或者多种混合物作为填料组合物配方科学,制备方法简单,所得产品能够使浆料均匀度更好,能够改善纸浆的纤维结构,避免纸张在使用过程中产生掉毛、起毛、提高纸张的质量,并且利于对纤维的离解从而利于成浆,提高功效比、减少溶出物质对工艺水的环保影响从而提高得率。(The invention discloses a non-wood fiber-based papermaking additive, which comprises the following components in parts by weight: 100 parts of filler, 15-35 parts of retention and filtration aid, 10-20 parts of oxalic acid, 8-15 parts of alkyl sulfonic acid, 5-8 parts of sodium nonylphenol polyoxyethylene ether sulfonate, 1-3 parts of isooctyl polyoxyethylene ether, 10-20 parts of acrylamide, 15-25 parts of emulsifier, 8-25 parts of thickener and 10-30 parts of metal peroxide. The invention adopts one or a plurality of mixtures of carboxymethyl cellulose, nano silicon dioxide and borax as the filler composition, has scientific formula and simple preparation method, can ensure that the obtained product has better slurry uniformity, can improve the fiber structure of paper pulp, avoids the occurrence of hair falling and fuzzing of paper in the using process, improves the quality of paper, is beneficial to the dissociation of fiber so as to be beneficial to pulping, improves the efficacy ratio, reduces the environmental protection influence of dissolved substances on process water so as to improve the yield.)

1. A non-wood fiber based papermaking additive characterized by: the formula of the papermaking auxiliary agent based on the non-wood fibers comprises the following components in parts by mass: 100 parts of filler, 15-35 parts of retention and filtration aid, 10-20 parts of oxalic acid, 8-15 parts of alkyl sulfonic acid, 5-8 parts of sodium nonylphenol polyoxyethylene ether sulfonate, 1-3 parts of isooctyl polyoxyethylene ether, 10-20 parts of acrylamide, 15-25 parts of emulsifier, 8-25 parts of thickener and 10-30 parts of metal peroxide.

2. The non-wood fiber based papermaking agent according to claim 1, wherein: the metal peroxide is one of cumyl peroxide or peroxyacetic acid.

3. The non-wood fiber based papermaking agent according to claim 1, wherein: the filler is one or a mixture of more of carboxymethyl cellulose, nano silicon dioxide and borax.

4. The non-wood fiber based papermaking agent according to claim 1, wherein: the formula of the papermaking auxiliary agent based on the non-wood fibers comprises the following components in parts by mass: 100 parts of filler, 15 parts of retention and filtration aid, 10 parts of oxalic acid, 8 parts of alkyl sulfonic acid, 5 parts of sodium nonylphenol polyoxyethylene ether sulfonate, 1 part of isooctyl polyoxyethylene ether, 10 parts of acrylamide, 15 parts of emulsifier, 8 parts of thickener and 10 parts of metal peroxide.

5. The non-wood fiber based papermaking agent according to claim 1, wherein: the formula of the papermaking auxiliary agent based on the non-wood fibers comprises the following components in parts by mass: 200 parts of filler, 35 parts of retention and filtration aid, 20 parts of oxalic acid, 15 parts of alkyl sulfonic acid, 8 parts of sodium nonylphenol polyoxyethylene ether sulfonate, 3 parts of isooctyl polyoxyethylene ether, 20 parts of acrylamide, 25 parts of emulsifier, 25 parts of thickener and 30 parts of metal peroxide.

6. The non-wood fiber based papermaking agent according to claim 1, wherein: the formula of the papermaking auxiliary agent based on the non-wood fibers comprises the following components in parts by mass: 150 parts of filler, 20 parts of retention and filtration aid, 15 parts of oxalic acid, 12 parts of alkyl sulfonic acid, 6 parts of sodium nonylphenol polyoxyethylene ether sulfonate, 2 parts of isooctyl polyoxyethylene ether, 15 parts of acrylamide, 20 parts of emulsifier, 18 parts of thickener and 20 parts of metal peroxide.

7. A method of preparing a non-wood fiber based papermaking furnish of claim 1 comprising the steps of:

s1, weighing the materials for later use according to the formula of the papermaking auxiliary agent based on the non-wood fibers based on parts by mass;

s2, sequentially adding the filler, oxalic acid, alkyl sulfonic acid, sodium nonylphenol polyoxyethylene ether sulfonate and isooctyl polyoxyethylene ether into a stirring type reaction kettle, adding a proper amount of distilled water, and stirring at a high speed of 70-90 ℃ for 1-1.5 hours to prepare prefabricated slurry;

s3, standing the prefabricated slurry, cooling the prefabricated slurry to a temperature below 60 ℃ and higher than 30 ℃, adding metal peroxide, stirring, and stirring at a medium speed for 15-20 minutes;

s5, adding metal peroxide into the prefabricated slurry, stirring at a medium speed, adjusting the stirring type reaction kettle to a low speed, stirring, and slowly adding an emulsifier;

s6, after the emulsifier is added into the prefabricated slurry, adding the thickener into the stirring type reaction kettle in several times, and detecting the viscosity of the slurry in the stirring type reaction kettle for many times when the thickener is added;

and S7, when the viscosity reaches the standard, stirring the slurry for 10-20 minutes, and then naturally reacting for 1-2 hours to finish the preparation.

8. The method of claim 7, wherein the non-wood fiber-based papermaking additive comprises: the standard range of the viscosity in the step S7 is 18-20mm 2/S.

9. The method of claim 7, wherein the non-wood fiber-based papermaking additive comprises: the low-speed stirring of the stirring type reaction kettle is 30-80 r/min; the medium-speed stirring of the stirring type reaction kettle is 80-200 r/min; the high-speed stirring of the stirring type reaction kettle is 200-.

Technical Field

The invention belongs to the technical field of papermaking additives, and particularly relates to a papermaking additive based on non-wood fibers; in particular to a preparation method of the papermaking auxiliary agent based on the non-wood fiber.

Background

Papermaking aids are auxiliary chemicals added during the pulping process to impart certain properties to the process and product.

The existing generally used papermaking cooking methods comprise a caustic soda method, a sulfate method, an alkaline method, a neutral method, a sodium sulfite method and the like, wherein the sulfate cooking method is widely adopted due to high pulp slurry strength, but the sulfate pulping method has the defects of serious equipment corrosion, large environmental pollution, difficult pulp bleaching, high pulping cost and the like.

At present, sodium sulfide, anthraquinone and derivatives thereof are generally adopted in the papermaking industry as pulp auxiliaries, but the anthraquinone and the derivatives thereof can cause serious harm to the health of human bodies and easily cause distortion, and the pulp auxiliaries prepared from the anthraquinone and the derivatives thereof have higher cost, so that the production cost is correspondingly increased, and therefore, the papermaking auxiliaries based on non-wood fibers and the preparation method thereof are provided.

Disclosure of Invention

The invention aims to provide a papermaking auxiliary agent based on non-wood fibers and a preparation method thereof, which aim to solve the problems that anthraquinone and derivatives thereof proposed in the background art cause serious harm to the health of human bodies and are easy to cause deformity, and the pulp auxiliary agent prepared from the anthraquinone and the derivatives thereof has higher cost, so that the production cost is correspondingly increased.

In order to achieve the purpose, the invention adopts the following technical scheme:

the non-wood fiber-based papermaking additive comprises the following components in parts by weight: 100 parts of filler, 15-35 parts of retention and filtration aid, 10-20 parts of oxalic acid, 8-15 parts of alkyl sulfonic acid, 5-8 parts of sodium nonylphenol polyoxyethylene ether sulfonate, 1-3 parts of isooctyl polyoxyethylene ether, 10-20 parts of acrylamide, 15-25 parts of emulsifier, 8-25 parts of thickener and 10-30 parts of metal peroxide.

Preferably, the metal peroxide is one of cumyl peroxide or peroxyacetic acid.

Preferably, the filler is one or a mixture of more of carboxymethyl cellulose, nano silica and borax.

Preferably, the formulation of the non-wood fiber based papermaking additive comprises the following components in parts by weight: 100 parts of filler, 15 parts of retention and filtration aid, 10 parts of oxalic acid, 8 parts of alkyl sulfonic acid, 5 parts of sodium nonylphenol polyoxyethylene ether sulfonate, 1 part of isooctyl polyoxyethylene ether, 10 parts of acrylamide, 15 parts of emulsifier, 8 parts of thickener and 10 parts of metal peroxide.

Preferably, the formulation of the non-wood fiber based papermaking additive comprises the following components in parts by weight: 200 parts of filler, 35 parts of retention and filtration aid, 20 parts of oxalic acid, 15 parts of alkyl sulfonic acid, 8 parts of sodium nonylphenol polyoxyethylene ether sulfonate, 3 parts of isooctyl polyoxyethylene ether, 20 parts of acrylamide, 25 parts of emulsifier, 25 parts of thickener and 30 parts of metal peroxide.

Preferably, the formulation of the non-wood fiber based papermaking additive comprises the following components in parts by weight: 150 parts of filler, 20 parts of retention and filtration aid, 15 parts of oxalic acid, 12 parts of alkyl sulfonic acid, 6 parts of sodium nonylphenol polyoxyethylene ether sulfonate, 2 parts of isooctyl polyoxyethylene ether, 15 parts of acrylamide, 20 parts of emulsifier, 18 parts of thickener and 20 parts of metal peroxide.

A preparation method of a papermaking auxiliary agent based on non-wood fibers comprises the following steps:

s1, weighing the materials for later use according to the formula of the papermaking auxiliary agent based on the non-wood fibers based on parts by mass;

s2, sequentially adding the filler, oxalic acid, alkyl sulfonic acid, sodium nonylphenol polyoxyethylene ether sulfonate and isooctyl polyoxyethylene ether into a stirring type reaction kettle, adding a proper amount of distilled water, and stirring at a high speed of 70-90 ℃ for 1-1.5 hours to prepare prefabricated slurry;

s3, standing the prefabricated slurry, cooling the prefabricated slurry to a temperature below 60 ℃ and higher than 30 ℃, adding metal peroxide, stirring, and stirring at a medium speed for 15-20 minutes;

s5, adding metal peroxide into the prefabricated slurry, stirring at a medium speed, adjusting the stirring type reaction kettle to a low speed, stirring, and slowly adding an emulsifier;

s6, after the emulsifier is added into the prefabricated slurry, adding the thickener into the stirring type reaction kettle in several times, and detecting the viscosity of the slurry in the stirring type reaction kettle for many times when the thickener is added;

and S7, when the viscosity reaches the standard, stirring the slurry for 10-20 minutes, and then naturally reacting for 1-2 hours to finish the preparation.

Preferably, the standard range of the viscosity in the step S7 is 18-20mm 2/S.

Preferably, the low-speed stirring of the stirring type reaction kettle is 30-80 r/min; the medium-speed stirring of the stirring type reaction kettle is 80-200 r/min; the high-speed stirring of the stirring type reaction kettle is 200-.

The invention has the technical effects and advantages that:

the invention adopts one or a plurality of mixtures of carboxymethyl cellulose, nano silicon dioxide and borax as the filler composition, has scientific formula and simple preparation method, can ensure that the obtained product has better slurry uniformity, can improve the fiber structure of paper pulp, avoids the occurrence of hair falling and fluffing of paper in the using process, improves the quality of the paper, is beneficial to the dissociation of fibers so as to be beneficial to pulping, improves the efficacy ratio, reduces the environmental protection influence of dissolved substances on process water so as to improve the yield, simultaneously reduces the pollution to the environment, improves the use efficiency of raw materials and reduces the energy consumption.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The non-wood fiber-based papermaking additive comprises the following components in parts by weight: 100 parts of filler, 15 parts of retention and filtration aid, 10 parts of oxalic acid, 8 parts of alkyl sulfonic acid, 5 parts of sodium nonylphenol polyoxyethylene ether sulfonate, 1 part of isooctyl polyoxyethylene ether, 10 parts of acrylamide, 15 parts of emulsifier, 8 parts of thickener and 10 parts of metal peroxide.

Wherein, the metal peroxide adopts peroxyacetic acid.

Wherein, the filler adopts a plurality of mixtures of carboxymethyl cellulose, nano silicon dioxide and borax.

A preparation method of a papermaking auxiliary agent based on non-wood fibers comprises the following steps:

s1, weighing the materials for later use according to the formula of the papermaking auxiliary agent based on the non-wood fibers based on parts by mass;

s2, sequentially adding the filler, oxalic acid, alkyl sulfonic acid, sodium nonylphenol polyoxyethylene ether sulfonate and isooctyl polyoxyethylene ether into a stirring type reaction kettle, adding a proper amount of distilled water, and stirring at a high speed of 70-90 ℃ for 1-1.5 hours to prepare prefabricated slurry;

s3, standing the prefabricated slurry, cooling the prefabricated slurry to a temperature below 60 ℃ and higher than 30 ℃, adding metal peroxide, stirring, and stirring at a medium speed for 15-20 minutes;

s5, adding metal peroxide into the prefabricated slurry, stirring at a medium speed, adjusting the stirring type reaction kettle to a low speed, stirring, and slowly adding an emulsifier;

s6, after the emulsifier is added into the prefabricated slurry, adding the thickener into the stirring type reaction kettle in several times, and detecting the viscosity of the slurry in the stirring type reaction kettle for many times when the thickener is added;

and S7, when the viscosity reaches the standard, stirring the slurry for 10-20 minutes, and then naturally reacting for 1-2 hours to finish the preparation.

Wherein the standard range of the viscosity in the step S7 is 18-20mm 2/S.

Wherein the low-speed stirring of the stirring type reaction kettle is 30-80 r/min; the medium-speed stirring of the stirring type reaction kettle is 80-200 r/min; the high-speed stirring of the stirring reaction kettle is 200-.

The stirring type reaction kettle consists of a kettle body, a kettle cover, a jacket, a stirrer, a transmission device, a shaft seal device, a support and the like, when the height-diameter ratio of the stirring device is larger, a plurality of layers of stirring blades can be used, the stirring device can be optionally selected and matched according to the requirements of users, the jacket is arranged outside the kettle wall, or a heat exchange surface is arranged in the kettle, heat exchange can be carried out through external circulation, the support seat is provided with a support type or ear type support seat and the like, a gear reducer is suitable to be used when the rotating speed exceeds 160 turns, the number of holes, the specification or other requirements can be designed and manufactured; the packing is adopted for sealing under normal pressure or low pressure, and the pressure is generally less than 2 kg; mechanical sealing is adopted under the common medium pressure or vacuum pumping condition, the common pressure is negative pressure or 4 kilograms of negative pressure, magnetic sealing is adopted under the condition of high pressure or high medium volatility, the common pressure is over 14 kilograms, and except that the magnetic sealing adopts water for cooling, cooling water jackets are added in other sealing modes above 120 ℃; before the reaction kettle is operated, whether the reaction kettle has abnormal shape or not needs to be carefully checked, and the upper cover and a connecting terminal on the contact plate do not need to be opened in normal operation so as to avoid electric shock; strictly forbidding operation under pressure; in the process of testing the pressure by using the nitrogen, carefully observing the change of a pressure gauge to reach the pressure testing pressure, and immediately closing a nitrogen valve switch; the temperature rise should not be too fast, and the pressurization should be carried out slowly, especially the stirring speed, which is only allowed to rise or fall slowly.

Example 2

Different from the example 1, the formula of the papermaking auxiliary agent based on the non-wood fibers comprises the following components in parts by weight: 200 parts of filler, 35 parts of retention and filtration aid, 20 parts of oxalic acid, 15 parts of alkyl sulfonic acid, 8 parts of sodium nonylphenol polyoxyethylene ether sulfonate, 3 parts of isooctyl polyoxyethylene ether, 20 parts of acrylamide, 25 parts of emulsifier, 25 parts of thickener and 30 parts of metal peroxide.

Wherein, the metal peroxide adopts cumyl peroxide.

Wherein, the filler adopts the mixture of nano silicon dioxide and borax.

Example 3

Different from the example 1, the formula of the papermaking auxiliary agent based on the non-wood fibers comprises the following components in parts by weight: 150 parts of filler, 20 parts of retention and filtration aid, 15 parts of oxalic acid, 12 parts of alkyl sulfonic acid, 6 parts of sodium nonylphenol polyoxyethylene ether sulfonate, 2 parts of isooctyl polyoxyethylene ether, 15 parts of acrylamide, 20 parts of emulsifier, 18 parts of thickener and 20 parts of metal peroxide.

Wherein, the metal peroxide adopts cumyl peroxide.

Wherein, the filler adopts nano silicon dioxide.

The specific formulation data for three sets of examples of the invention are given in the following table:

	example 1	Example 2	Example 3
				Filler material	100 portions of	200 portions of	150 portions of
Retention and filtration aid	15 portions of	35 portions of	20 portions of
				Oxalic acid	10 portions of	20 portions of	15 portions of
Alkyl sulfonic acid	10 portions of	15 portions of	12 portions of
				Sodium salt of nonylphenol polyoxyethylene ether	8 portions of	8 portions of	6 portions of
Isooctyl polyoxyethylene ether	1 part of	3 portions of	2 portions of
				Acrylamide	10 portions of	20 portions of	15 portions of
Emulsifier	15 portions of	25 portions of	20 portions of
				Thickening agent	8 portions of	25 portions of	18 portions of
Metal peroxides	10 portions of	30 portions of	20 portions of

The invention adopts one or a plurality of mixtures of carboxymethyl cellulose, nano silicon dioxide and borax as the filler composition, has scientific formula and simple preparation method, can ensure that the obtained product has better slurry uniformity, can improve the fiber structure of paper pulp, avoids the occurrence of hair falling and fluffing of paper in the using process, improves the quality of the paper, is beneficial to the dissociation of fibers so as to be beneficial to pulping, improves the efficacy ratio, reduces the environmental protection influence of dissolved substances on process water so as to improve the yield, simultaneously reduces the pollution to the environment, improves the use efficiency of raw materials and reduces the energy consumption.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.