CN101210403B - Method for preparing ring crush intensity synergist of full waste paper corrugated base paper - Google Patents
Method for preparing ring crush intensity synergist of full waste paper corrugated base paper Download PDFInfo
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- CN101210403B CN101210403B CN2007103077151A CN200710307715A CN101210403B CN 101210403 B CN101210403 B CN 101210403B CN 2007103077151 A CN2007103077151 A CN 2007103077151A CN 200710307715 A CN200710307715 A CN 200710307715A CN 101210403 B CN101210403 B CN 101210403B
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Abstract
A preparation method of a ring crush strength synergist of corrugating medium of pure waste paper comprises the following steps of: mixing phenol and diethylenetriamine and heating to 65 to 75 DEG C in a reaction kettle provided with a stirrer, a reflux condenser and a thermometer and adding formaldehyde solution dropwise at the temperature; and increasing the temperature of the reaction system to 100 to 110 DEG C, further reacting at the temperature for 30 min, cooling to room temperature when the reaction is finished, and adding sodium hydroxide solution to adjust the pH value of the mixed solution to 10.0 to 11.0. According to the invention, the ring crush strength of a corrugating medium can be improved by adding a chemical auxiliary agent in the manufacture process of the corrugating medium on the premise of not changing the prior production process flow. The synergist can be directly added into the paper pulp as an additive in the corrugating medium preparation process using pure waste paper as the raw materials and then mixed completely for preparing the corrugating medium by a paper machine, so that the indexes of the final paper such as the ring crust strength and the tensile index can be improved significantly without changing the original production process.
Description
Technical field
The present invention relates to a kind of preparation method of corrugated paper synergist, be specifically related to a kind of preparation method of ring crush intensity synergist of complete useless fluting medium.
Background technology
Corrugated case is a kind of important paper pack container, has very to use widely in the logistics field of all kinds of commodity and industrial products.The main raw material of making fluting medium is generally leaf wood semi-chemical pulp, grass semi-chemical pulp and secondary stock etc., because the fast development of the paper industry size of capacity is given prominence to day by day with the contradiction of raw material of papermaking fiber worsening shortages, waste paper fibre has become the main raw material of Chinese domestic production of fluting base paper enterprise in recent years.Because waste paper fibre its fibre morphology parameter and become the mis-behave of paper physical strength in repeatedly reuse process, cause with waste paper is that raw material is made the crucial pi of strength of fluting medium such as the problem that general deficiency appears in ring crush intensity, ring crush intensity is one of important pi of strength of cardboard type product, serviceabilities such as compression strength to the finished product carton have crucial influence, therefore, enjoy people to pay close attention to.
Summary of the invention
The object of the present invention is to provide a kind ofly do not changing the original production process flow process, become the preparation method of the ring crush intensity synergist of the full waste paper corrugated base paper that the indexs such as ring crush intensity, tensile index of paper are significantly improved.
For achieving the above object, the technical solution used in the present invention is: at first in the reactor that agitator, reflux condensing tube and thermometer are housed, by 1: 0.010～0.020 mixed in molar ratio and be heated to 65 ℃～75 ℃, is that to drip mass concentration be 35% formalin for 1: 0.7～0.9 mol ratio by phenol and formaldehyde with phenol and diethylenetriamine under this temperature; Temperature with reaction system is increased to 100～110 ℃ then, under this temperature, continue reaction 30min, after question response is complete, be cooled to room temperature, and to add mass concentration be that the pH value that 20% sodium hydrate aqueous solution is regulated mixed liquor is 10.0～11.0, can obtain ring crush intensity synergist.
Because the present invention is under the prerequisite that does not change the existing technological process of production substantially, in the manufacture process of fluting medium, use chemical assistant to reach and improve its ring crush intensity, can be that raw material is made and directly made an addition in the paper pulp as additive in the process of fluting medium at full waste paper, after mixing, last paper machine carries out the system of copying of fluting medium, do not change the original production process flow process, indexs such as the ring crush intensity of one-tenth paper, tensile index are significantly improved.
The specific embodiment
Embodiment 1: at first in the reactor that agitator, reflux condensing tube and thermometer are housed, by 1: 0.01 mixed in molar ratio and be heated to 75 ℃, is that to drip mass concentration be 35% formalin for 1: 0.7 mol ratio by phenol and formaldehyde with phenol and diethylenetriamine under this temperature; Temperature with reaction system is increased to 100 ℃ then, under this temperature, continue reaction 30min, after question response is complete, be cooled to room temperature, and to add mass concentration be that the pH value that 20% sodium hydrate aqueous solution is regulated mixed liquor is 10.0～11.0, can obtain ring crush intensity synergist.
Embodiment 2: at first in the reactor that agitator, reflux condensing tube and thermometer are housed, by 1: 0.02 mixed in molar ratio and be heated to 65 ℃, is that to drip mass concentration be 35% formalin for 1: 0.8 mol ratio by phenol and formaldehyde with phenol and diethylenetriamine under this temperature; Temperature with reaction system is increased to 110 ℃ then, under this temperature, continue reaction 30min, after question response is complete, be cooled to room temperature, and to add mass concentration be that the pH value that 20% sodium hydrate aqueous solution is regulated mixed liquor is 10.0～11.0, can obtain ring crush intensity synergist.
Embodiment 3: at first in the reactor that agitator, reflux condensing tube and thermometer are housed, by 1: 0.015 mixed in molar ratio and be heated to 68 ℃, is that to drip mass concentration be 35% formalin for 1: 0.9 mol ratio by phenol and formaldehyde with phenol and diethylenetriamine under this temperature; Temperature with reaction system is increased to 103 ℃ then, under this temperature, continue reaction 30min, after question response is complete, be cooled to room temperature, and to add mass concentration be that the pH value that 20% sodium hydrate aqueous solution is regulated mixed liquor is 10.0～11.0, can obtain ring crush intensity synergist.
Embodiment 4: at first in the reactor that agitator, reflux condensing tube and thermometer are housed, by 1: 0.018 mixed in molar ratio and be heated to 72 ℃, is that to drip mass concentration be 35% formalin for 1: 0.7 mol ratio by phenol and formaldehyde with phenol and diethylenetriamine under this temperature; Temperature with reaction system is increased to 108 ℃ then, under this temperature, continue reaction 30min, after question response is complete, be cooled to room temperature, and to add mass concentration be that the pH value that 20% sodium hydrate aqueous solution is regulated mixed liquor is 10.0～11.0, can obtain ring crush intensity synergist.
Embodiment 5: at first in the reactor that agitator, reflux condensing tube and thermometer are housed, by 1: 0.013 mixed in molar ratio and be heated to 70 ℃, is that to drip mass concentration be 35% formalin for 1: 0.9 mol ratio by phenol and formaldehyde with phenol and diethylenetriamine under this temperature; Temperature with reaction system is increased to 105 ℃ then, under this temperature, continue reaction 30min, after question response is complete, be cooled to room temperature, and to add mass concentration be that the pH value that 20% sodium hydrate aqueous solution is regulated mixed liquor is 10.0～11.0, can obtain ring crush intensity synergist.
The performance indications of the ring crush intensity synergist that makes according to preparation method of the present invention: solid content is 43.1% (mass concentration), the pH value of product 1.0% aqueous dispersion is 10.0, viscosity is 79.2mPa, charge density one 0.117meq/g, and shelf stable for periods is 3 months.
When acting on the OCC secondary stock separately and manufacturing paper with pulp cardboard, when addition is the quality 1.0% of secondary stock, become the tensile index and the ring crush index of paper can increase by 15.90% and 9.65% respectively.When with the synchronic use of cationic starch (consumption is 1.0%), become the tensile index and the ring crush index of paper can increase by 32.81% and 29.29% respectively.Draw by the optimization to diethylenetriamine phenol-formaldehyde resin modified and cationic starch consumption, when the consumption of this product and cationic starch is respectively 0.3% and 0.7%, become the tensile index of paper and ring crush index can increase by 35.28% and 26.50% respectively this moment.
Claims (6)
1. the preparation method of the ring crush intensity synergist of a full waste paper corrugated base paper is characterized in that:
1) at first in the reactor that agitator, reflux condensing tube and thermometer are housed, by 1: 0.010～0.020 mixed in molar ratio and be heated to 65 ℃～75 ℃, is that to drip mass concentration be 35% formalin for 1: 0.7～0.9 mol ratio by phenol and formaldehyde with phenol and diethylenetriamine under this temperature;
2) then the temperature of reaction system is increased to 100～110 ℃, under this temperature, continue reaction 30min, after question response is complete, be cooled to room temperature, and to add mass concentration be that the pH value that 20% sodium hydrate aqueous solution is regulated mixed liquor is 10.0～11.0, can obtain ring crush intensity synergist.
2. the preparation method of the ring crush intensity synergist of full waste paper corrugated base paper according to claim 1, it is characterized in that: at first in the reactor that agitator, reflux condensing tube and thermometer are housed, by 1: 0.01 mixed in molar ratio and be heated to 75 ℃, is that to drip mass concentration be 35% formalin for 1: 0.7 mol ratio by phenol and formaldehyde with phenol and diethylenetriamine under this temperature; Temperature with reaction system is increased to 100 ℃ then, under this temperature, continue reaction 30min, after question response is complete, be cooled to room temperature, and to add mass concentration be that the pH value that 20% sodium hydrate aqueous solution is regulated mixed liquor is 10.0～11.0, can obtain ring crush intensity synergist.
3. the preparation method of the ring crush intensity synergist of full waste paper corrugated base paper according to claim 1, it is characterized in that: at first in the reactor that agitator, reflux condensing tube and thermometer are housed, by 1: 0.02 mixed in molar ratio and be heated to 65 ℃, is that to drip mass concentration be 35% formalin for 1: 0.8 mol ratio by phenol and formaldehyde with phenol and diethylenetriamine under this temperature; Temperature with reaction system is increased to 110 ℃ then, under this temperature, continue reaction 30min, after question response is complete, be cooled to room temperature, and to add mass concentration be that the pH value that 20% sodium hydrate aqueous solution is regulated mixed liquor is 10.0～11.0, can obtain ring crush intensity synergist.
4. the preparation method of the ring crush intensity synergist of full waste paper corrugated base paper according to claim 1, it is characterized in that: at first in the reactor that agitator, reflux condensing tube and thermometer are housed, by 1: 0.015 mixed in molar ratio and be heated to 68 ℃, is that to drip mass concentration be 35% formalin for 1: 0.9 mol ratio by phenol and formaldehyde with phenol and diethylenetriamine under this temperature; Temperature with reaction system is increased to 103 ℃ then, under this temperature, continue reaction 30min, after question response is complete, be cooled to room temperature, and to add mass concentration be that the pH value that 20% sodium hydrate aqueous solution is regulated mixed liquor is 10.0～11.0, can obtain ring crush intensity synergist.
5. the preparation method of the ring crush intensity synergist of full waste paper corrugated base paper according to claim 1, it is characterized in that: at first in the reactor that agitator, reflux condensing tube and thermometer are housed, by 1: 0.018 mixed in molar ratio and be heated to 72 ℃, is that to drip mass concentration be 35% formalin for 1: 0.7 mol ratio by phenol and formaldehyde with phenol and diethylenetriamine under this temperature; Temperature with reaction system is increased to 108 ℃ then, under this temperature, continue reaction 30min, after question response is complete, be cooled to room temperature, and to add mass concentration be that the pH value that 20% sodium hydrate aqueous solution is regulated mixed liquor is 10.0～11.0, can obtain ring crush intensity synergist.
6. the preparation method of the ring crush intensity synergist of full waste paper corrugated base paper according to claim 1, it is characterized in that: at first in the reactor that agitator, reflux condensing tube and thermometer are housed, by 1: 0.013 mixed in molar ratio and be heated to 70 ℃, is that to drip mass concentration be 35% formalin for 1: 0.9 mol ratio by phenol and formaldehyde with phenol and diethylenetriamine under this temperature; Temperature with reaction system is increased to 105 ℃ then, under this temperature, continue reaction 30min, after question response is complete, be cooled to room temperature, and to add mass concentration be that the pH value that 20% sodium hydrate aqueous solution is regulated mixed liquor is 10.0～11.0, can obtain ring crush intensity synergist.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007103077151A CN101210403B (en) | 2007-12-21 | 2007-12-21 | Method for preparing ring crush intensity synergist of full waste paper corrugated base paper |
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| CN2007103077151A CN101210403B (en) | 2007-12-21 | 2007-12-21 | Method for preparing ring crush intensity synergist of full waste paper corrugated base paper |
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| CN101210403A CN101210403A (en) | 2008-07-02 |
| CN101210403B true CN101210403B (en) | 2010-08-11 |
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| CN102392391A (en) * | 2011-10-31 | 2012-03-28 | 陕西科技大学 | Filling method adopting polyvinyl alcohol as filler adhesive among pieces of paper |
| JP2021004270A (en) * | 2019-06-25 | 2021-01-14 | 住友ベークライト株式会社 | Phenol resin |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5690790A (en) * | 1996-03-28 | 1997-11-25 | The Procter & Gamble Company | Temporary wet strength paper |
| EP0953679A1 (en) * | 1998-04-22 | 1999-11-03 | Hymo Corporation | Paper strengthening agent and paper strengthening method |
| CN101050611A (en) * | 2007-05-14 | 2007-10-10 | 南京林业大学 | Surface sizing agent for improving paper deflection and paperboard circular press stength |
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2007
- 2007-12-21 CN CN2007103077151A patent/CN101210403B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5690790A (en) * | 1996-03-28 | 1997-11-25 | The Procter & Gamble Company | Temporary wet strength paper |
| EP0953679A1 (en) * | 1998-04-22 | 1999-11-03 | Hymo Corporation | Paper strengthening agent and paper strengthening method |
| CN101050611A (en) * | 2007-05-14 | 2007-10-10 | 南京林业大学 | Surface sizing agent for improving paper deflection and paperboard circular press stength |
Non-Patent Citations (4)
| Title |
|---|
| 刘站等.改性酚醛树脂对OCC废纸增强作用的研究.中国造纸26 2.2007,26(2),72-73. |
| 刘站等.改性酚醛树脂对OCC废纸增强作用的研究.中国造纸26 2.2007,26(2),72-73. * |
| 杜艳芬等.改性酚醛树脂用于助留的研究.西北轻工业学院学报20 6.2002,20(6),52-55. |
| 杜艳芬等.改性酚醛树脂用于助留的研究.西北轻工业学院学报20 6.2002,20(6),52-55. * |
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