CN101250837A - Intensifier for paper as well as preparation method and application thereof - Google Patents
Intensifier for paper as well as preparation method and application thereof Download PDFInfo
- Publication number
- CN101250837A CN101250837A CNA2008100352630A CN200810035263A CN101250837A CN 101250837 A CN101250837 A CN 101250837A CN A2008100352630 A CNA2008100352630 A CN A2008100352630A CN 200810035263 A CN200810035263 A CN 200810035263A CN 101250837 A CN101250837 A CN 101250837A
- Authority
- CN
- China
- Prior art keywords
- paper
- weight
- intensifier
- temperature
- weight portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The invention provides a paper reinforcer and a method for preparation and an application thereof, wherein the method for preparation comprises the following steps: (1) stirring and blending solvent 40-60 parts by weight and guar gum powder 10-20 parts by weight, then, charging catalyst 0.2-1 parts by weight to react in the temperature of 35-60 DEG C for 30-90 min, cooling to the temperature of 25-30 DEG C, aerating nitrogen to remove oxygen, (2) charging etherifying agent, then, heating to the temperature of 40-90 DEG C to react for 2-5 h, reducing temperature to 30-40DEG C, charging neutralization agent to control pH value of the reactant between 6 and 8, and collecting the paper reinforcer from the reaction product. The prepared paper reinforcer of the invention can rapidly dissolve after meeting water in the indoor temperature and is simple in operation, and good in powder fluidity and stability, which can be applied in thin paper, special paper, drawing paper and the like besides cigarette paper.
Description
Technical field
The present invention relates to a kind of intensifier for paper and the application aspect papermaking.
Background technology
At present paper industry widespread usage remodeling starch and cationic polyacrylamide be as reinforcing agent, but domestic starch source differs, and of a great variety, straight chain and side chain ratio are different, therefore have a strong impact on its modified product quality of stability.
The wet end adjuvant of external major company production is haveed no alternative but select for use in domestic big paper mill, causes paper cost to increase.On the other hand, cationic polyacrylamide is easily biological-degradable not, and residual monomer has certain toxicity, is restricted in the application of paper for daily use and high-grade paper.And the plain boiled water reuse of cation polyacrylamide causes the positive electricity enrichment, influences formation of sheet and the stability of the system that manufactures paper with pulp.
Guar gum is a kind of natural galactomannan gum, extracts to obtain from the endosperm of the guar seed that originates in ground such as India, Pakistan.The guar gum main chain is that the unit is formed by connecting by (1,4) β-D mannose, and side chain is made up of single α-D galactolipin and is joined with (1,6) key and main chain.Its distinctive molecular structure and physicochemical characteristics make it become a kind of very potential novel environment friendly paper making additive.Natural guar gum can improve paper strength during as paper making additive, reduces greyness and forms and also improve paper formation.But easily cause the drainage difficulty, thereby increased drying load.In recent years, since the plantation of guar gum, harvesting, purifying is pulverized and is realized industrialization, and the price advantage of its raw material is day by day obvious.And the outstanding biodegradability of guar gum has been alleviated problem of environmental pollution, meets environmental protection production theory.
Being based on application purpose about recent Progress in Modification of Guar Gum carries out, the guar gum of modification is mainly at household chemicals, aspects such as oil field chemical, mining, papermaking, obtained the approval of large-scale market at home, as U.S. Pat 3326890, US3350186, US3483121 discloses the preparation technology of nonionic guar gum.But the subject matter that these patented technologies exist is the synthesis step complexity, and the product substitution value is lower.
Summary of the invention
The object of the present invention is to provide a kind of intensifier for paper and its production and application, to overcome the above-mentioned defective that prior art exists.
Preparation method of the present invention comprises the steps:
(1) 40-60 parts by weight solvent and the former powder of 10～20 weight portion guar gums are mixed, add 0.2-1 weight portion catalyst then,, be cooled to 25-30 ℃, fill nitrogen and drive oxygen 35-60 ℃ of reaction 30-90 minute;
(2) add 8-12 weight portion etherifying agent, heat temperature raising reacted 2～5 hours to 40-90 ℃ then, was cooled to 30-40 ℃, adds 2-6 weight portion neutralizer reactant pH value is controlled between the 6-8, collected described intensifier for paper again from product.
Said solvent is selected from more than one in methyl alcohol, ethanol, isopropyl alcohol or the tert-butyl alcohol aqueous solution, and the weight concentration of water is 10%-40% in the solvent, is preferably 20-30%;
Catalyst is selected from diethylenetriamine, more than one in triethylene tetramine, tetraethylene pentamine, mono aminoethane, diethylamine, triethylamine, monoethanolamine, diethanol amine or the triethanolamine etc.;
Said etherifying agent is selected from more than one in oxirane, expoxy propane, epoxy butane, epoxychloropropane or the chlorethanol;
Described neutralizer is inorganic acid or organic acid, more than one in preferred hydrochloric acid, glacial acetic acid, citric acid or the fumaric acid;
Collection method adopts this area universal method, and for example, can collect product as follows: with the reactant suction filtration, filter cake is dried in vacuum drying chamber, is ground into 100 orders, makes described intensifier for paper.
Adopt the intensifier for paper of method for preparing, have performances such as good fluidity, viscosity is high and stablize, can be used for paper and strengthen.
The intensifier for paper of the present invention's preparation is the nonionic guar gum, meet water in room temperature and can be dissolved into settled solution rapidly, do not need the high temperature gelatinization, simple to operate, be beneficial to and cut down the consumption of energy and reduce equipment investment, product of the present invention is compared with the former powder of guar gum, powder fluidity is good, 1% aqueous solution is placed in room temperature and can not occurred precipitation, flocculation, layering and phenomenon such as mouldy more than 10 days, and viscosity remains unchanged substantially, and it is unaffected to strengthen effect.Can adjust its consumption according to the addition of different component, beating degree and other auxiliary agent of paper pulp, thereby the performance synergistic function enlarges the scope of application of product of the present invention, except that cigarette paper, also is used for: thin paper, speciality paper, drawing paper etc.
The specific embodiment
Embodiment 1
In 100 liters of reactors, add ethanol 32kg and 8kg deionized water, stir, add the former powder 20kg of guar gum, stir and add diethanol amine 0.2kg down, under agitation heat temperature raising to 35 ℃ reacts 90min under this temperature, is cooled to 25 ℃ then, logical nitrogen replacement air, in the atmosphere of anaerobic, add oxirane 8kg, heat temperature raising to 50 ℃, reaction is 5 hours under this temperature, be cooled to 30 ℃ then, transfer about pH value to 7.0 with glacial acetic acid.
(ethanol: water=9: 1) washing once through suction filtration, usefulness ethanol/water mixed liquor for material, suction filtration, with 95% ethanol washing once, washing, suction filtration, filter cake are under 70 ℃ of conditions dry 2 hours in vacuum, temperature, to dry the back and pulverize, and cross 100 eye mesh screens and get finished product; Be numbered HPG1.
Embodiment 2
In 100 liters of reactors, add industrial alcohol 32kg and 8kg deionized water, stir, add the former powder 20kg of guar gum, stir and add triethanolamine 0.5kg down, under agitation heat temperature raising to 40 ℃ reacts 75min under this temperature, is cooled to 27 ℃ then, logical then nitrogen replacement air, in the atmosphere of anaerobic, add oxirane 10kg, heat temperature raising to 60 ℃, reaction is 4 hours under this temperature, be cooled to 30 ℃ then, transfer about pH value to 7.0 with glacial acetic acid.
(ethanol: water=9: 1) wash once, suction filtration washs once with 95% ethanol material through suction filtration, usefulness ethanol/water mixed liquor, washing, suction filtration, filter cake are under 70 ℃ of conditions dry 2 hours in vacuum, temperature, to dry the back and pulverize, and cross 100 eye mesh screens and get finished product, be numbered HPG2.
Embodiment 3
In 100 liters of reactors, add industrial alcohol 28kg and 12kg deionized water, stir and to add the former powder 30kg of guar gum down, stir and add diethylamine 0.7kg down, under agitation heat temperature raising to 45 ℃, under this temperature, react 60min, be cooled to 30 ℃ then, logical then nitrogen replacement air adds expoxy propane 4.5kg in the atmosphere of anaerobic, heat temperature raising to 50 ℃, reaction is 5 hours under this temperature, is cooled to 30 ℃ then, transfers about pH value to 7.0 with glacial acetic acid.(ethanol: water=9: 1) wash once, suction filtration washs once with 95% ethanol material through suction filtration, usefulness ethanol/water mixed liquor, washing, suction filtration, filter cake are under 70 ℃ of conditions dry 2 hours in vacuum, temperature, to dry the back and pulverize, and cross 100 eye mesh screens and get finished product, be numbered HPG3.
Embodiment 4
In 100 liters of reactors, add industrial alcohol 28kg and 12kg deionized water, stir and to add the former powder 20kg of guar gum down, stir and add diethylenetriamine 0.8kg down, under agitation heat temperature raising to 50 ℃, under this temperature, react 50min, be cooled to 30 ℃ then, logical then nitrogen replacement air adds expoxy propane 10kg in the atmosphere of anaerobic, heat temperature raising to 70 ℃, reaction is 3 hours under this temperature, is cooled to 30 ℃ then, transfers about pH value to 7.0 with glacial acetic acid.(ethanol: water=9: 1) wash once, suction filtration washs once with 95% ethanol material through suction filtration, usefulness ethanol/water mixed liquor, washing, suction filtration, filter cake are under 70 ℃ of conditions dry 2 hours in vacuum, temperature, to dry the back and pulverize, and cross 100 eye mesh screens and get finished product, be numbered HPG4.
Embodiment 5
In 100 liters of reactors, add industrial alcohol 30kg and 10kg deionized water, stir and to add the former powder 20kg of guar gum down, stir and add triethylene tetramine 1kg down, under agitation heat temperature raising to 55 ℃, under this temperature, react 30min, be cooled to 30 ℃ then, logical nitrogen replacement air adds expoxy propane 12kg in the atmosphere of anaerobic, heat temperature raising to 70 ℃, reaction is 3 hours under this temperature, is cooled to 30 ℃ then, transfers about pH value to 7.0 with hydrochloric acid.(ethanol: water=9: 1) wash once, suction filtration washs once with 95% ethanol material through suction filtration, usefulness ethanol/water mixed liquor, washing, suction filtration, filter cake are under 70 ℃ of conditions dry 2 hours in vacuum, temperature, to dry the back and pulverize, and cross 100 eye mesh screens and get product, be numbered HPG5.
Application Example 1
By the quantitative 50g/m of design
2Copy sheet, guar gum reinforcing agent addition is 5 kilograms of/ton paper (doing/dried paper), fine particle calcium carbonate adds fills out 30% (doing/dried paper), take by weighing an amount of slurry, addition by design added the stirring of guar gum reinforcing agent after 1 minute, add fine particle calcium carbonate and stirred 1 minute, copy the sheet shaping on the sheet machine, dry back each index of 0.3Mpa soft calendaring one-time detection pattern square copying.
Add the handsheet physical index of sample
From experimental result, the paper of the present invention's preparation is compared with the application performance and contrast sample of guar gum reinforcing agent, and it is better to strengthen effect.
Claims (7)
1. the preparation method of intensifier for paper is characterized in that, comprises the steps:
(1) 40-60 parts by weight solvent and the former powder of 10～20 weight portion guar gums are mixed, add 0.2-1 weight portion catalyst then,, be cooled to 25-30 ℃, fill nitrogen and drive oxygen 35-60 ℃ of reaction 30-90 minute;
(2) add etherifying agent, heat temperature raising reacted 2～5 hours to 40-90 ℃ then, was cooled to 30-40 ℃, adds neutralizer reactant pH value is controlled between the 6-8, collected described intensifier for paper again from product;
Catalyst is selected from diethylenetriamine, more than one in triethylene tetramine, tetraethylene pentamine, mono aminoethane, diethylamine, triethylamine, monoethanolamine, diethanol amine or the triethanolamine;
Said etherifying agent is selected from more than one in oxirane, expoxy propane, epoxy butane, epoxychloropropane or the chlorethanol;
Described neutralizer is inorganic acid or organic acid.
2. method according to claim 1 is characterized in that, the raw materials in part by weight ratio is as follows: solvent 40-60 weight portion, former powder 10～20 weight portions of guar gum, catalyst 0.2-1 weight portion, etherifying agent 8-12 weight portion.
3. method according to claim 1 is characterized in that, said solvent is selected from more than one in methyl alcohol, ethanol, isopropyl alcohol or the tert-butyl alcohol aqueous solution.
4. method according to claim 3 is characterized in that, the weight concentration of water is 10%-40% in the solvent.
5. method according to claim 1 is characterized in that, neutralizer is more than one in hydrochloric acid, glacial acetic acid, citric acid or the fumaric acid.
6. according to the intensifier for paper of each described method preparation of claim 1～5.
7. the application of intensifier for paper according to claim 6 is characterized in that, is used for paper and strengthens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100352630A CN101250837A (en) | 2008-03-27 | 2008-03-27 | Intensifier for paper as well as preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100352630A CN101250837A (en) | 2008-03-27 | 2008-03-27 | Intensifier for paper as well as preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101250837A true CN101250837A (en) | 2008-08-27 |
Family
ID=39954420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100352630A Pending CN101250837A (en) | 2008-03-27 | 2008-03-27 | Intensifier for paper as well as preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101250837A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105568761A (en) * | 2014-10-17 | 2016-05-11 | 东升新材料（山东）有限公司 | Tearing strength reinforcing agent for papermaking and preparation method of tearing strength reinforcing agent |
-
2008
- 2008-03-27 CN CNA2008100352630A patent/CN101250837A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105568761A (en) * | 2014-10-17 | 2016-05-11 | 东升新材料（山东）有限公司 | Tearing strength reinforcing agent for papermaking and preparation method of tearing strength reinforcing agent |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100523373C (en) | Reinforcing agent for paper and its preparation method and application | |
| CN102121208B (en) | Method for preparing papermaking dry strengthening agent | |
| CN102180615B (en) | Modified alkali lignin cement grinding aid and preparation method thereof | |
| JP6363596B2 (en) | Chemical pulp manufacturing method | |
| CN102127877B (en) | Production process of bamboo-dissolving pulp | |
| CN101367960B (en) | Preparation method for composite material of nano-concave-convex stick stone/silicon dioxide | |
| CN101177458A (en) | Cationic starch synthesis method | |
| CN1699163A (en) | Process for producing white carbon black and sodium sulphite by sodium sulfate method | |
| CN110615896B (en) | Method for preparing lignosulfonate water reducing agent from dissolving pulp pulping waste liquid | |
| CN108951106A (en) | A kind of antibacterial nano fiber and preparation method thereof | |
| CN101597065B (en) | Method for preparing white carbon black of PE clapboard | |
| CN107119477B (en) | A kind of sinocalamus latiflorus true qualities paper pulp and its preparation process | |
| CN100519586C (en) | Process of producing sodium carboxymethyl cellulose with papermaking sludg as material | |
| CN105585641B (en) | A kind of method that bacteria alginate is extracted from activated sludge | |
| CN102417564B (en) | Water-retaining agent and preparation method thereof by papermaking sludge | |
| CN102329398B (en) | Multi-functional guar gum derivative for papermaking and preparation method and application for multi-functional guar gum derivative | |
| CN106468032B (en) | A kind of method and device for extracting lignin from sulfate pulping black liquor | |
| CN101250837A (en) | Intensifier for paper as well as preparation method and application thereof | |
| CN108103839A (en) | A kind of preparation method of modified calcium sulfate crystal whisker papermaking filler | |
| CN110106040B (en) | Green preparation method of starch-based composite washing assistant | |
| CN107034712A (en) | A kind of novel papermaking method | |
| CN101659528B (en) | Concrete admixture prepared by using alkali paper making liquid waste | |
| CN107400176A (en) | Hydroxypropyl cation guar gum and its water-medium semi-dry method preparation method and use | |
| CN102273618B (en) | Preparation process of non-soluble dietary fiber | |
| CN110372162B (en) | Papermaking sludge backfill reinforcing agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080827 |