CN104017207A - Paper making/breaking control agent and preparation method thereof - Google Patents
Paper making/breaking control agent and preparation method thereof Download PDFInfo
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- CN104017207A CN104017207A CN201410260500.9A CN201410260500A CN104017207A CN 104017207 A CN104017207 A CN 104017207A CN 201410260500 A CN201410260500 A CN 201410260500A CN 104017207 A CN104017207 A CN 104017207A
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Abstract
The invention discloses a paper making/breaking control agent comprises a cation polyamide resin containing hydrophobic saturated side chain substituent group and derived self-crosslinking group, and the weight average molecular weight is 100-150 thousand. The invention also discloses a preparation method of the paper making/breaking control agent, which comprises the following steps: slowly adding polyamine into unsaturated polybasic acid, reacting at 125-140 DEG C for 0.5-3 hours, continuing heating to 160-180 DEG C, keeping the temperature for 2-4 hours, cooling to 120-145 DEG C, and adding 60-80 DEG C water to obtain a polyamide water solution with the solid content of 50-53%; reacting with hydrophobic compound at 60-90 DEG C to obtain a polyamide containing hydrophobic side chain substituent group; and reacting the polyamide containing hydrophobic side chain substituent group with a crosslinking agent to obtain the cation hydrophobic polyamide resin, which is the breaking control agent. The paper making/breaking control agent can effectively control the paper web broken ends between the pressed continual end and vat paper machine of the long-net paper machine.
Description
Technical field
The present invention relates to a kind of disconnected paper control agent and preparation method thereof.
Background technology
The disconnected paper broken end of control paper machine in the time of copy paper, is the technical barrier of some papermaking enterprises, particularly eliminates the broken end of fourdrinier wire vat paper machine between dryer part one cylinder and two cylinder more outstanding.Improving a cylinder paper delivery moisture content, dwindle finished paper two sides poor, is also that a lot of papermaking scientific workers study problem for many years, has taked a lot of methods in mechanical aspects, does not all reach very desirable effect.
Summary of the invention
The technical problem to be solved in the present invention is to provide disconnected paper control agent of a kind of copy paper and preparation method thereof, the above-mentioned defect existing to overcome prior art.
For solving the problems of the technologies described above, the present invention adopts following technical scheme to realize:
The copy paper of the present invention paper control agent that breaks is to comprise that weight-average molecular weight is 10-15 ten thousand containing having hydrophobic saturated side chains substituting group and the cationic polyamide resins derived from crosslinked group.
The preparation method of the disconnected paper control agent of copy paper of the present invention, comprises the steps:
(1) polyamine is slowly added in unsaturated polyprotonic acid, at 125-140 DEG C, react after 0.5-3 hour, continue to be warming up to 160-180 DEG C of insulation 2-4 hour, be then cooled to 120-145 DEG C, adding the water of 60-80 DEG C to obtain solid content is 50-53% aqueous polyamide solution; Then react with hydrophobic compound 60-90 DEG C, obtain containing the substituent polymeric amide of hydrophobic side chain;
(2) will described in contain the substituent polymeric amide of hydrophobic side chain and react with linking agent and make cation hydrophobic polyamide resin, both must this disconnected paper control agent.
Described polyamine is selected from diethylenetriamine, Triethylenetetramine (TETA), tetren, quadrol, pentamethylene diamine, hexanediamine or its mixture;
Described unsaturated polyprotonic acid is selected from toxilic acid, maleic anhydride, methylene-succinic acid, fumaric acid, styracin or its mixture;
The mol ratio of described polyamine and unsaturated polyprotonic acid is polyamine: unsaturated polyprotonic acid=1.0-1.2:1.0;
The viscosity of described aqueous polyamide solution is 300-800cps;
Described hydrophobic compound is selected from alkyl acrylate, alkyl methacrylate, alkyl acrylamide, alkyl sulfonic ester, alkyl sulfuric ester, diazonium compound, ether, epoxide or its mixture;
Described hydrophobic compound preferably comprises the hydrophobic chain of 6-40 carbon atom;
Described hydrophobic compound preferably comprises at least one heteroatomic chain;
The mol ratio of described polymeric amide and hydrophobic compound is, hydrophobic compound: polymeric amide=0.01-0.16:0.2-0.7;
Described linking agent is epoxy chloropropane;
The mol ratio of described linking agent and polymeric amide is, linking agent: polymeric amide=0.5-1.5:1.0, and temperature of reaction is 50-70 DEG C.
The copy paper of the present invention paper control agent that breaks, has effectively controlled long mesh paper making machine paper web and has not breaked end and paper web broken end between vat paper machine one cylinder and two cylinder in squeezing.This product adds at paper making wet part, dispersibles the poly-fibrous mass of slurry wadding, by self-crosslinking and co-crosslinking, reaches the wet tenacity that strengthens wet web, makes felt, net successfully transmit wet web entrance pressure and squeezes.And the surface that makes squeeze roll, drying cylinder keep clean, smooth.Wet web remains lubricated soft page from forming cutter is dry, thereby reaches the object of controlling the disconnected paper broken end of copy paper.
Embodiment
Provide preferred embodiment of the present invention below, to describe technical scheme of the present invention in detail.
Embodiment 1
(1) in the 1L four-hole boiling flask that stirring, temperature are housed take into account dropwise adding pipeline, add 116 grams of toxilic acids, open and stir, slowly add two sub-ethene triamine 123.8g, 140 DEG C insulation 0.5 hour after, 180 DEG C of insulations 2 hours continue to heat up, then be cooled to 120 DEG C, adding the deionized water of 80 DEG C of calculated amount to obtain solid content is 53% aqueous polyamide solution, and viscosity is 560cps;
(2) after getting 240 grams of (0.6mol) (53% solution) of (1) polymers soln and 27.3g (0.15mol) ethyl acrylate and mixing, be warming up to 60 DEG C, react after 6 hours, add 176 grams of deionized waters, and solution is cooled to room temperature;
(3) mix with epoxy chloropropane 27.75g 307 grams of (2) solution, be warming up to 50 DEG C; , 1 hour viscosity of insulation reaction reaches 50cps, adds deionized water 155g and temperature is adjusted to 65 DEG C, so that viscosity reaches 50cps, adds 11g sulfuric acid (50%) to adjust the pH value to 3.5 of system that reaction is finished.
Product solid content is 30%, and polymericular weight is 10.95 ten thousand, and viscosity is 55cps (25 DEG C), and testing method is according to GB12005.1.
Embodiment 2
(1) in the 1L four-hole boiling flask that stirring, temperature are housed take into account dropwise adding pipeline, add 214 grams of maleic anhydrides, open and stir, slowly add hexamethylene-diamine 116,120 DEG C insulation 3 hours after, 160 DEG C of insulations 3 hours continue to heat up, then be cooled to 145 DEG C, adding the deionized water of 80 DEG C of calculated amount to obtain solid content is 52% aqueous polyamide solution, and viscosity is 300cps;
(2) after getting 80 grams of (0.2mol) (52% solution) of (1) polymers soln and 1.84g (0.01mol) ethyl acrylate and 43g deionized water and mixing, be warming up to 80 DEG C, react after 4 hours, be cooled to room temperature;
(3) mix with epoxy chloropropane 22.2g 125 grams of (3) solution, be warming up to 60 DEG C; , 1 hour viscosity of insulation reaction reaches 35cps, adds deionized water 86g and temperature is adjusted to 65 DEG C, so that viscosity reaches 35cps, adds 8.0g sulfuric acid (50%) to adjust the pH value to 3.0 of system that reaction is finished.
Product solid content is 20%, and polymericular weight is 13.90 ten thousand, and viscosity is 40cps (25 DEG C), and testing method is according to GB12005.1.
Embodiment 3
(1) in the 1L four-hole boiling flask that stirring, temperature are housed take into account dropwise adding pipeline, add 116 grams of fumaric acid, open and stir, slowly add trimethylene tetramine 219g, 130 DEG C insulation 2 hours after, 165 DEG C of insulations 2.5 hours continue to heat up, then be cooled to 130 DEG C, adding the deionized water of 80 DEG C of calculated amount to obtain solid content is 53% aqueous polyamide solution, and viscosity is 800cps;
(2) get after 260 grams of (0.65mol) (53% solution) of (1) polymers soln and 25.0%41g (0.16mol) dodecylacrylate mix, be warming up to 75 DEG C, react after 5 hours, add 211 grams of deionized waters, then its solution is cooled to room temperature;
(3) mix with epoxy chloropropane 90.18g at (2) solution, be warming up to 80 DEG C; , 0.5 hour viscosity of insulation reaction reaches 70cps, adds deionized water 185g and temperature is adjusted to 80 DEG C, so that viscosity reaches 70cps, adds 7.0g sulfuric acid (50%) to adjust the pH value to 4.5 of system that reaction is finished.
Product solid content is 15%, and polymericular weight is 14.5 ten thousand, and viscosity is 80cps (25 DEG C), and testing method is according to GB12005.1.
Application Example
Carry out upper machine test, wet end adds the disconnected 8 kgs/tonne of paper of paper control agent of copy paper of the present invention, with do not add the disconnected paper control agent contrast of copy paper, in paper machine operation process, reduce and resolve paper broken end phenomenon, the not added-time, average every 500 meters will there is disconnected paper once, resolve after paper inhibitor and add, average about 3000 meters just there is once disconnected paper phenomenon, and the broken end between press part or a cylinder and two cylinders also obviously reduces simultaneously.
Claims (10)
1. the disconnected paper control agent of copy paper, it is characterized in that comprising that weight-average molecular weight is 10-15 ten thousand containing having hydrophobic saturated side chains substituting group and the cationic polyamide resins derived from crosslinked group.
2. prepare the method for the disconnected paper control agent of copy paper described in claim 1, it is characterized in that, comprise the steps: that (1) slowly adds polyamine in unsaturated polyprotonic acid, at 125-140 DEG C, react after 0.5-3 hour, continue to be warming up to 160-180 DEG C of insulation 2-4 hour, then be cooled to 120-145 DEG C, adding the water of 60-80 DEG C to obtain solid content is 50-53% aqueous polyamide solution; Then react with hydrophobic compound 60-90 DEG C, obtain containing the substituent polymeric amide of hydrophobic side chain;
(2) will described in contain the substituent polymeric amide of hydrophobic side chain and react with linking agent and make cation hydrophobic polyamide resin, both the described copy paper paper control agent that breaks.
3. method according to claim 2, is characterized in that, described polyamine is selected from diethylenetriamine, Triethylenetetramine (TETA), tetren, quadrol, pentamethylene diamine, hexanediamine or its mixture.
4. method according to claim 2, is characterized in that, described unsaturated polyprotonic acid is selected from toxilic acid, maleic anhydride, methylene-succinic acid, fumaric acid, styracin or its mixture.
5. method according to claim 2, is characterized in that, the viscosity of described aqueous polyamide solution is 300-800cps.
6. method according to claim 2, it is characterized in that, described hydrophobic compound is selected from alkyl acrylate, alkyl methacrylate, alkyl acrylamide, alkyl sulfonic ester, alkyl sulfuric ester, diazonium compound, ether, epoxide or its mixture.
7. method according to claim 6, is characterized in that, the hydrophobic chain that described hydrophobic compound comprises 6-40 carbon atom, and comprise at least one heteroatomic chain.
8. method according to claim 2, is characterized in that, described linking agent is epoxy chloropropane.
9. method according to claim 2, is characterized in that, the temperature of reaction of step (2) is 50-70 DEG C.
10. method according to claim 2, is characterized in that, the mol ratio of described polyamine and unsaturated polyprotonic acid is, polyamine: unsaturated polyprotonic acid=1.0-1.2:1.0; The mol ratio of described polymeric amide and hydrophobic compound is, hydrophobic compound: polymeric amide=0.01-0.16:0.2-0.7; The mol ratio of described linking agent and polymeric amide is, linking agent: polymeric amide=0.5-1.5:1.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410260500.9A CN104017207A (en) | 2014-06-12 | 2014-06-12 | Paper making/breaking control agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410260500.9A CN104017207A (en) | 2014-06-12 | 2014-06-12 | Paper making/breaking control agent and preparation method thereof |
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| CN104017207A true CN104017207A (en) | 2014-09-03 |
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| CN201410260500.9A Pending CN104017207A (en) | 2014-06-12 | 2014-06-12 | Paper making/breaking control agent and preparation method thereof |
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Citations (7)
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| EP0802215A1 (en) * | 1996-04-18 | 1997-10-22 | Hercules Incorporated | Highly branched polyamidoamines and their preparation |
| CN1531613A (en) * | 2001-06-11 | 2004-09-22 | �����ɷ� | Wet-strength finishing agents for paper |
| CN1715299A (en) * | 1999-11-19 | 2006-01-04 | 阿克佐诺贝尔公司 | Wet strength agent and method for production thereof |
| CN1966855A (en) * | 2006-10-19 | 2007-05-23 | 上海东升新材料有限公司 | Epoxy polyurethane resin wet-strengthening agent and method for preparing same |
| CN102216370A (en) * | 2008-11-18 | 2011-10-12 | 赫尔克里士公司 | Hydrophobically modified poly(aminoamides) |
| CN103396544A (en) * | 2013-07-01 | 2013-11-20 | 陕西科技大学 | Method for preparing a reinforcing agent special for ultrafine glass fiber paper and applications of reinforcing agent |
| CN103806337A (en) * | 2012-11-09 | 2014-05-21 | 王慧 | Papermaking wet strengthening agent preparation method |
-
2014
- 2014-06-12 CN CN201410260500.9A patent/CN104017207A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0802215A1 (en) * | 1996-04-18 | 1997-10-22 | Hercules Incorporated | Highly branched polyamidoamines and their preparation |
| CN1715299A (en) * | 1999-11-19 | 2006-01-04 | 阿克佐诺贝尔公司 | Wet strength agent and method for production thereof |
| CN1531613A (en) * | 2001-06-11 | 2004-09-22 | �����ɷ� | Wet-strength finishing agents for paper |
| CN1966855A (en) * | 2006-10-19 | 2007-05-23 | 上海东升新材料有限公司 | Epoxy polyurethane resin wet-strengthening agent and method for preparing same |
| CN102216370A (en) * | 2008-11-18 | 2011-10-12 | 赫尔克里士公司 | Hydrophobically modified poly(aminoamides) |
| CN103806337A (en) * | 2012-11-09 | 2014-05-21 | 王慧 | Papermaking wet strengthening agent preparation method |
| CN103396544A (en) * | 2013-07-01 | 2013-11-20 | 陕西科技大学 | Method for preparing a reinforcing agent special for ultrafine glass fiber paper and applications of reinforcing agent |
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Application publication date: 20140903 |