CN105567119A - Chitosan adhesive and preparation method and application thereof - Google Patents
Chitosan adhesive and preparation method and application thereof Download PDFInfo
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- CN105567119A CN105567119A CN201610118927.4A CN201610118927A CN105567119A CN 105567119 A CN105567119 A CN 105567119A CN 201610118927 A CN201610118927 A CN 201610118927A CN 105567119 A CN105567119 A CN 105567119A
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- chitosan
- sizing agent
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- bromopropyl
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J105/00—Adhesives based on polysaccharides or on their derivatives, not provided for in groups C09J101/00 or C09J103/00
- C09J105/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
- C08B37/0024—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof
- C08B37/0027—2-Acetamido-2-deoxy-beta-glucans; Derivatives thereof
- C08B37/003—Chitin, i.e. 2-acetamido-2-deoxy-(beta-1,4)-D-glucan or N-acetyl-beta-1,4-D-glucosamine; Chitosan, i.e. deacetylated product of chitin or (beta-1,4)-D-glucosamine; Derivatives thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/50—Modified hand or grip properties; Softening compositions
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Molecular Biology (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- General Health & Medical Sciences (AREA)
- Textile Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to chitosan adhesive and a preparation method and the application of the chitosan adhesive. A structure formula of the chitosan adhesive is as shown in a formula (1) in the description, and the number-average molecular weight of the chitosan adhesive is 20,000 to 30,000. The chitosan adhesive disclosed by the invention has the characteristics of degradability, no pungent smell, no toxicity, water solubility and the like, the problem of high pollution of spinning and coating industries is solved, and the problem that combination of dacron and chinlon with the chitosan adhesive is not firm because the dacron and the chinlon have no active groups is solved through cross-linked action of the chitosan adhesive, so that the defect that a coating layer is not wash-resisting is overcome; excellent film forming performance, excellent moisture absorption performance and excellent air permeability of chitosan are integrated, so that the thickness of a film during a coating process can be accurately controlled within 100 nm, the air permeability and the softness of finished fabric are increased to a large extent by comparing with a common coating layer, and the weight of the fabric is not added.
Description
Technical field
The invention belongs to sizing agent field, be specifically related to a kind of chitosan system sizing agent and its preparation method and application.
Background technology
Sizing agent is also called tackiness agent, is that one can material of the same race or dissimilar substances, by surface be closely integrated into one overall, stress conduction can be played, and the connecting media of certain process based prediction model requirement can be met.
In spinning coating industry, sizing agent, also referred to as linking agent, is mainly used in coating process.Top finish be the surface uniform of fabric coating or bind one deck macromolecular material, make it have different functions.In coating, tackiness agent will have influence on the tightness degree that macromolecular functional layer is combined with fabric, thus the efficiency affecting macromolecular functional layer plays and wash durability, also pliability and the ventilation property of fabric can be had influence on, the further comfort level affecting textiles dress, so the performance of tamanori is very large to the performance impact of spinning coating product.
Current spinning coating technique is just becoming the high pollution high energy consumption technique be eliminated gradually, because used tamanori mostly is that smell is pungent, toxic property, be not easy the macromolecular compound of degrading, fabric face coated with after can make stiffen fabrics, lose ventilation property, reduce the comfort level of textiles dress, environment-friendly type aqueous tamanori becomes the problem that producer is competitively studied.But existing water-based tamanori washing fastness is very low, product is after washing, and coating easily comes off, and have impact on the range of application of water-based tamanori.Therefore develop the sizing agent that a kind of stickiness is strong, environment friendly and pollution-free, become and improve spinning coating technique problem urgently to be resolved hurrily.
Summary of the invention
The present invention seeks to provide a kind of chitosan system sizing agent to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution used in the present invention is: a kind of chitosan system sizing agent, and its structural formula is such as formula shown in (1):
Its number-average molecular weight is 20000 ~ 30000.
Preferably, the number-average molecular weight of chitosan system sizing agent is 24000 ~ 30000.Be more preferably 28000 ~ 30000.
Another object of the present invention is the preparation method providing a kind of above-mentioned chitosan system sizing agent, and it comprises the following steps:
A 3-isocyanic acid propylene, indicator are dissolved in the first organic solvent by (), be placed in cryostat, pass into N
2with HBr gas, react to obtain 3-bromopropyl isocyanic ester;
B chitosan, sodium hydroxide join in the second organic solvent and are configured to solution by (), under heating, agitation condition, add 3-bromopropyl isocyanic ester react, adjust ph precipitates to neutrality subsequently, washs to obtain micro-yellow powder after filtration.
Further, described indicator is two Chinese cassia tree acetone, and described first organic solvent is methylene dichloride or chloroform or the combination of the two.
Further, in step (a), 3-isocyanic acid propylene, indicator are dissolved in the first organic solvent, under the condition of 0 ~ 5 DEG C, pass into N
2with HBr gas, make reaction solution become scarlet stopped reaction by faint yellow, then extract to obtain 3-bromopropyl isocyanic ester with toluene.
Further, in step (a), the mass ratio of described 3-isocyanic acid propylene, indicator, the first organic solvent is 1:8 × 10
-5~ 1.2 × 10
-4: 7 ~ 10, N
2be 1:0.9 ~ 1.2 with the volume ratio of HBr.
Preferably, in step (b), described second organic solvent is one or more the combination be selected from methyl alcohol, ethanol and Virahol.
Preferably, the mass ratio of described chitosan, sodium hydroxide, the second organic solvent, 3-bromopropyl isocyanic ester is 1:18 ~ 22:12 ~ 16:3 ~ 6.
Further, in step (b), chitosan, sodium hydroxide are joined in the second organic solvent and is configured to solution, be heated to 40 ~ 60 DEG C, add 3-bromopropyl isocyanic ester after stirring 20 ~ 60min, after reaction 2 ~ 3h, adjust ph precipitates to neutrality, filters, by methanol wash, obtain micro-yellow powder.
Another object of the present invention is to provide the application of a kind of above-mentioned chitosan system sizing agent in fabric foam coating.
Because technique scheme is used, the present invention compared with prior art has following advantages: chitosan system of the present invention sizing agent, there is specific chemical structural formula, it has degradable, have no irritating odor, the water soluble nature of toxicological harmless, solve the problem of spinning coating industry high pollution, by the crosslinked action of himself, solve terylene and polyamide fibre self does not have active group, with tamanori in conjunction with unstable problem, thus solve the not laundry-resistant defect of coating; And gathered film forming properties, water absorbability, the ventilation property of chitosan excellence, the thickness of film in coating procedure can be made accurately to control within 100nm, the ventilation property of finished textile product, pliability are greatly enhanced than common coating, and the weight of fabric can not be increased.
Accompanying drawing explanation
Accompanying drawing 1 is the nuclear magnetic spectrum of chitosan system of the present invention sizing agent.
Embodiment
Chitosan system of the present invention sizing agent, its structural formula is such as formula shown in (1):
Its number-average molecular weight is 20000 ~ 30000.This chitosan system sizing agent has degradable, has no irritating odor, the water soluble nature of toxicological harmless, solve the problem of spinning coating industry high pollution, by the crosslinked action of himself, solve terylene and polyamide fibre self does not have active group, with tamanori in conjunction with unstable problem, thus solve the not laundry-resistant defect of coating; And gathered film forming properties, water absorbability, the ventilation property of chitosan excellence, the thickness of film in coating procedure can be made accurately to control within 100nm, the ventilation property of finished textile product, pliability are greatly enhanced than common coating, and the weight of fabric can not be increased.Its number-average molecular weight is preferably 24000 ~ 30000, is more preferably 28000 ~ 30000.Sizing agent molecular weight is now moderate, is conducive to fully mixing with other chemical substance, thus improves film forming properties.
The preparation method of above-mentioned chitosan system sizing agent, it comprises the following steps: 3-isocyanic acid propylene, indicator are dissolved in the first organic solvent by (a), are placed in cryostat, pass into N
2with HBr gas, react to obtain 3-bromopropyl isocyanic ester; B chitosan, sodium hydroxide join in the second organic solvent and are configured to solution by (), under heating, agitation condition, add 3-bromopropyl isocyanic ester react, adjust ph precipitates to neutrality subsequently, washs to obtain micro-yellow powder after filtration.The method preparation process is simple, and obtained chitosan system sizing agent purity is higher, and thus film forming properties is good.
In step (b), the mass ratio of described chitosan and 3-bromopropyl isocyanic ester is preferably 1:3 ~ 6; Described indicator is for being preferably two Chinese cassia tree acetone, and described first organic solvent is preferably methylene dichloride or chloroform, and described second organic solvent is preferably methyl alcohol, ethanol or Virahol.
Step (a) is specially: by 3-isocyanic acid propylene, two Chinese cassia tree acetone solutions in methylene dichloride, under the condition of 0 ~ 5 DEG C, pass into N
2with HBr gas, make reaction solution become scarlet stopped reaction by faint yellow, then extract to obtain 3-bromopropyl isocyanic ester with toluene; Described 3-isocyanic acid propylene, two Chinese cassia tree acetone, CH
2cl
2mass ratio be 1:8 × 10
-5~ 1.2 × 10
-4: 7 ~ 10, N
2be 1:0.9 ~ 1.2 with the volume ratio of HBr; Thus purity and the productive rate of 3-bromopropyl isocyanic ester can be improved.Step (b) is specially: chitosan, sodium hydroxide are joined in Virahol and be configured to solution, be heated to 40 ~ 60 DEG C, 3-bromopropyl isocyanic ester is added after stirring 20 ~ 60min, after reaction 2 ~ 3h, adjust ph precipitates to neutrality, filter, by methanol wash, obtain micro-yellow powder; In step (b), the mass ratio of chitosan, sodium hydroxide, Virahol, 3-bromopropyl isocyanic ester is 1:18 ~ 22:12 ~ 16:3 ~ 6.Described chitosan adopts existing, and the relative molecular mass as the production of Nantong Lv Shen biotechnology company limited is 30000, the water-soluble chitosan of deacetylation > 90%.
The application of above-mentioned chitosan system sizing agent in fabric foam coating, the surface of the fabric that this chitosan system sizing agent can apply separately, form the ventilative fabric refusing water, also can by other chemical material, as gac, aerogel, nano metal powder, microencapsulation material etc. bind on the surface of fabric, formed have adsorption cleaning altogether tender, temperature control, the functional fabric of radiation proof function; Or it is mixed according to a certain percentage with agent for three purposes, thickening material, whipping agent, suds-stabilizing agent, water, add foam coating machine after stirring and be coated on grey cloth, be applicable to the multiple fabrics such as terylene, polyamide fibre, cotton, blending.Thickening material is selected conventional, and 30 orders, the viscosity of marine alga auxiliary agent company limited as global in Lianyun Harbour are the sodium alginate of 500mPa.s; Whipping agent is selected conventional, as the 6501-1 type auxiliary agent of Jinan Guang Quan Chemical Co., Ltd.; Suds-stabilizing agent is selected conventional, as the 6501-2 type auxiliary agent of Jinan Guang Quan Chemical Co., Ltd.; Thickening material is selected conventional, as the YM-2060 of Guangdong Yue Mei Chemical Co., Ltd.; Agent for three purposes is selected conventional, if He Te group model is the water-refusing oil-refusing finishing agent of HS1100.
Below in conjunction with accompanying drawing, the preferred embodiment of the invention is described in detail:
Embodiment 1
The present embodiment provides the preparation method of a kind of chitosan system sizing agent, and it comprises the following steps:
A () (CAS 622-21-9, or claim 1,9-to join biphenyl-1,3,6,8-tetraene-5-in ninth of the ten Heavenly Stems ketone, chemical formula is by 3-isocyanic acid propylene and two Chinese cassia tree acetone
) be dissolved in CH
2cl
2in, then solution is placed in cryostat, regulates cryostat temperature to be 0 DEG C, pass into N
2with HBr gas, question response liquid becomes scarlet by faint yellow, stopped reaction, adds toluene extraction product, obtains product 3-bromopropyl isocyanic ester for subsequent use; Wherein, 3-isocyanic acid propylene, two Chinese cassia tree acetone, CH
2cl
2mass ratio be 1:0.0001:8, N
2be 1:3 with the mol ratio that the volume ratio of HBr is 1:1,3-isocyanic acid propylene and HBr;
B chitosan and sodium hydroxide join in Virahol by (), make solution, are heated to 40 DEG C, after stirring 30min, add 3-bromopropyl isocyanic ester, after reaction 2h, adjust ph is 7, filter after precipitation, by methanol wash, obtain micro-yellow powder, (number-average molecular weight is 20000 ~ 22000 to be propylisocyanate chitosan sizing agent, as indicated with 1, namely structural formula is its nuclear magnetic spectrum
); Wherein the mass ratio of chitosan, sodium hydroxide, Virahol, 3-bromopropyl isocyanic ester is the ratio of 1:20:15:5.
By agent for three purposes, obtained chitosan system sizing agent, thickening material, whipping agent, suds-stabilizing agent and water in mass ratio for 3:2:1:2:2:90 mixes, the coating agent stirred is for subsequent use; By coating agent and sample cloth, (the Nylon Taffeta grey cloth of door 1.6 meters, 20D, 380T, mass area ratio is 36.3g/m
2) add foam coating machine, apply according to the speed of 1.0m/s, after then drying at 180 DEG C of temperature, obtain sample; Shown in table with test results 1.The test of sample surfaces water repellency is tested according to the GB GB/T4745-2012 detecting and assessing of the textile water proof performance " get wet method "; Sample water vapour permeability is tested, test condition HDF37.5 DEG C according to GB GB/T12704.1-2009 " textile fabric water vapour permeability experimental technique first part: moisture absorption method "; Sample ventilation property is tested, test condition 20cm according to GB GB/T5453-1997 " test of textile fabric ventilation property "
2, 100pa; Sample washing methods carries out according to GB/T8629-2001 " Textile Test home washings and drying program ", washing procedure 5A, and wash temperature 40 DEG C adds " ECE " synthetic detergent, tumble drying.
Table 1 applies the sample cloth performance test data of chitosan system sizing agent in embodiment 1
Embodiment 2
The present embodiment provides the preparation method of a kind of chitosan system sizing agent, basically identical in its preparation process and embodiment 1, unlike, its reaction parameter is inconsistent, is specially: in step (a), 3-isocyanic acid propylene, two Chinese cassia tree acetone, CH
2cl
2mass ratio be 1:0.00008:7, N
2be 1:0.9 with the volume ratio of HBr, the mass ratio of chitosan, sodium hydroxide, Virahol, 3-bromopropyl isocyanic ester is 1:18:12:3, the number-average molecular weight of the propylisocyanate chitosan sizing agent finally obtained is 24000 ~ 26000, and test result is as shown in table 2.
Table 2 applies the sample cloth performance test data of chitosan system sizing agent in embodiment 2
Embodiment 3
The present embodiment provides the preparation method of a kind of chitosan system sizing agent, basically identical in its preparation process and embodiment 1, unlike, its reaction parameter is inconsistent, is specially: in step (a), 3-isocyanic acid propylene, two Chinese cassia tree acetone, CH
2cl
2mass ratio be 1:0.00012:10, N
2be 1:1.2 with the volume ratio of HBr, the mass ratio of chitosan, sodium hydroxide, Virahol, 3-bromopropyl isocyanic ester is 1:22:16:2, the number-average molecular weight of the propylisocyanate chitosan sizing agent finally obtained is 28000 ~ 30000, and test result is as shown in table 3.
Table 3 applies the sample cloth performance test data of chitosan system sizing agent in embodiment 3
Comparative example 1
This example provides a kind of application of existing sizing agent, be specially: by agent for three purposes, adhesive for polyurethane (auxiliary agent of the U-57 type of ShangHai SiSheng polymer Materials Co., Ltd), thickening material, whipping agent, suds-stabilizing agent and water, the ratio of 3:2:1:2:2:90 mixes in mass ratio, coating agent is obtained after stirring, coating agent and sample cloth are added foam coating machine, apply according to the speed of 1.0m/s, then obtain sample after drying at 180 DEG C of temperature, test result is as shown in table 3.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and implement according to this; can not limit the scope of the invention with this; all equivalences done according to spirit of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (10)
1. a chitosan system sizing agent, is characterized in that, its structural formula as the formula (1):
(1);
Its number-average molecular weight is 20000 ~ 30000.
2. chitosan system according to claim 1 sizing agent, is characterized in that: its number-average molecular weight is 24000 ~ 30000.
3. the preparation method of chitosan system sizing agent described in claim 1 or 2, it is characterized in that, it comprises the following steps:
A 3-isocyanic acid propylene, indicator are dissolved in the first organic solvent by (), be placed in cryostat, pass into N
2with HBr gas, react to obtain 3-bromopropyl isocyanic ester;
B chitosan, sodium hydroxide join in the second organic solvent and are configured to solution by (), under heating, agitation condition, add 3-bromopropyl isocyanic ester react, adjust ph precipitates to neutrality subsequently, washs to obtain micro-yellow powder after filtration.
4. the preparation method of chitosan system sizing agent according to claim 3, is characterized in that: described indicator is two Chinese cassia tree acetone, and described first organic solvent is methylene dichloride or chloroform or the combination of the two.
5. the preparation method of chitosan system sizing agent according to claim 3, is characterized in that: in step (a), is dissolved in the first organic solvent by 3-isocyanic acid propylene, indicator, under the condition of 0 ~ 5 DEG C, pass into N
2with HBr gas, make reaction solution become scarlet stopped reaction by faint yellow, then extract to obtain 3-bromopropyl isocyanic ester with toluene.
6. the preparation method of chitosan system sizing agent according to claim 3 or 4 or 5, it is characterized in that: in step (a), the mass ratio of described 3-isocyanic acid propylene, two Chinese cassia tree acetone, the first organic solvent is 1:8 × 10
-5~ 1.2 × 10
-4: 7 ~ 10, N
2be 1:0.9 ~ 1.2 with the volume ratio of HBr.
7. the preparation method of chitosan system sizing agent according to claim 3, it is characterized in that: in step (b), described second organic solvent is one or more the combination be selected from methyl alcohol, ethanol and Virahol.
8. the preparation method of chitosan system sizing agent according to claim 3, it is characterized in that: in step (b), the mass ratio of described chitosan, sodium hydroxide, the second organic solvent, 3-bromopropyl isocyanic ester is 1:18 ~ 22:12 ~ 16:3 ~ 6.
9. the preparation method of chitosan system sizing agent according to claim 3 or 7 or 8, it is characterized in that: in step (b), chitosan, sodium hydroxide are joined in the second organic solvent and is configured to solution, be heated to 40 ~ 60 DEG C, add 3-bromopropyl isocyanic ester after stirring 20 ~ 60min, after reaction 2 ~ 3h, adjust ph precipitates to neutrality, filters, by methanol wash, obtain micro-yellow powder.
10. the application of chitosan system sizing agent in fabric foam coating described in claim 1 or 2.
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CN115703751A (en) * | 2021-08-16 | 2023-02-17 | 广西至善新材料科技有限公司 | Preparation method of gallic acid glycidyl ester and adhesive thereof |
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Cited By (6)
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CN112323492A (en) * | 2020-10-30 | 2021-02-05 | 苏州棠华纳米科技有限公司 | After-finishing method of textile |
CN112358554A (en) * | 2020-10-30 | 2021-02-12 | 苏州棠华纳米科技有限公司 | Cross-linking agent for water-repellent and oil-repellent finishing, and preparation method and application thereof |
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CN115703751A (en) * | 2021-08-16 | 2023-02-17 | 广西至善新材料科技有限公司 | Preparation method of gallic acid glycidyl ester and adhesive thereof |
CN115703751B (en) * | 2021-08-16 | 2024-05-07 | 广西至善新材料科技有限公司 | Preparation method of glycidyl gallate and adhesive thereof |
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