CN103627366B - A kind of preparation method of gelatin-based tackiness agent - Google Patents
A kind of preparation method of gelatin-based tackiness agent Download PDFInfo
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- CN103627366B CN103627366B CN201310572812.9A CN201310572812A CN103627366B CN 103627366 B CN103627366 B CN 103627366B CN 201310572812 A CN201310572812 A CN 201310572812A CN 103627366 B CN103627366 B CN 103627366B
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Abstract
The invention belongs to field of adhesive technology, be specifically related to a kind of cohesive force better, environmental protection, cheap gelatin-based tackiness agent preparation method.Technical essential of the present invention is: take the gelatin of certain part by weight, ethylene glycol or glycerol, water, and in container, mixing, heated and stirred, make added component fully dissolve; To be dissolved completely after, in container, first add calcium chloride solution, stir; Then slowly sodium carbonate or solution of potassium carbonate is dripped; Finally react 5 ~ 8 hours under temperature is 60 ~ 70 DEG C of conditions; After reacting completely, treat that fluid temperature is cooled to 40 ~ 45 DEG C, in prepared solution, then add a certain amount of mould inhibitor, mix, leave standstill, after cooling completely, namely obtain gelatin-based adhesive solvent.The tackiness agent that the inventive method is produced is gluing effective, and nontoxic, environmental protection, good water solubility.
Description
Technical field
The invention belongs to field of adhesive technology, be specifically related to a kind of cohesive force better, environmental protection, cheap gelatin-based tackiness agent preparation method.
Background technology
The collagen protein that gelatin is the skin of animal, bone, cartilage, ligament, tendon and other reticular tissue contain is through purifying and being hydrolyzed the high-molecular polypeptide high polymers obtained.Gelatin utilizes leather the like waste to be prepared from for raw material usually, and technique is simple, and cost is extremely low, and industrial production technology is ripe.
As the reproducible natural high molecular substance of one, gelatin carries out limited modification through physics, chemistry or biological method, changes its molecular structure and performance, just can control solubleness and the viscosity of gelatin, make it have good cohesiveness and film forming properties.Recent research finds, gelatin-based tackiness agent can be made to obtain many properties, as gelatin and Resorcinol, formaldehyde react, can be made into a kind of good surgical operation tackiness agent by modification; Gelatin and vinyl pyrrolidone react, and also can make a kind of medical solid adhesive; Gelatin and methylcellulose gum, polyvinyl alcohol, quartz act on the tackiness agent can produced and bond building construction material; Gelatin and resol can make the tackiness agent of bonding glass fiber product, and this tackiness agent can improve rich Qu Xingneng and the ductility of glass fibre product widely; Gelatin and epoxy resin modification can improve water resisting property and viscosity, are the desirable tackiness agent of veneer sheet; Neutrality, stable tackiness agent can be made with sodium trichloroacetate or the process of trichoroacetic acid(TCA) potassium.In a word, the purposes of gelatin in tackiness agent is very widely.
Gelatin-based tackiness agent is a kind of water soluble adhesive, very strong bonding force is had to glass, paper, fabric, metal, leather, timber etc., its raw material is easy to get, adhesive property is good, and intensity is high, fast drying, bond stereotyped, and it is cheap, easy to use, nontoxic and can degrade under field conditions (factors).Therefore, along with society is more and more stronger to the requirement of environmental protection, the reproducible natural adhesive of degradable, raw material more and more receives the concern of people, and gelatin is day by day remarkable in the status of adhesive industry.
Summary of the invention
The object of the present invention is to provide the preparation method of a kind of green non-pollution, nontoxic, inexpensive gelatin-based tackiness agent.
Preparation method of the present invention comprises the step of following order:
(1) take the water of the gelatin of 16 ~ 20 weight parts, the ethylene glycol of 0.7 ~ 1.5 weight part or glycerol, 100 ~ 200 weight parts, mix in container, heated and stirred half an hour, added component is fully dissolved; To be dissolved completely after, in container, first add the calcium chloride solution of 10 weight parts, stir; Then slowly drip sodium carbonate or the solution of potassium carbonate of 13 weight parts, the rate of addition of sodium carbonate or solution of potassium carbonate is about 0.5 drop/sec; Finally react 5 ~ 8 hours under temperature is 60 ~ 70 DEG C of conditions; Wherein, the solid masses percentage composition of calcium chloride solution is 2% ~ 5%, and the solid masses percentage composition of sodium carbonate or solution of potassium carbonate is 2% ~ 5%;
After (2) (1) steps react completely, treat that fluid temperature is cooled to 40 ~ 45 DEG C, in prepared solution, then add the mould inhibitor of 0.3 ~ 0.8 weight part, mix, leave standstill, after cooling completely, namely obtain gelatin-based adhesive solvent.
Specifically, described mould inhibitor is the one in sodium sorbate, Trisodium Citrate, Sodium Propionate.
The present invention adopts gelatin as main raw material, and adds properties-correcting agent and carry out modification, with suitable ratio and suitable working method production gelatin-based adhesive products.Be liquid under gelatin-based tackiness agent usual conditions prepared by the inventive method, plybonding effect is good, and nontoxic, environmental protection, good water solubility.The present invention, compared with existing adhesive technology, has following advantage:
(1) excellent performance: adhesive products of the present invention is a kind of novel natural polymer-inorganic composite materials, not only has excellent security, also has very strong cohesiveness.
(2) gluing scope is wide: tackiness agent prepared by the present invention, can to metal, paper, and the article such as glass have good cohesiveness, and viscosifying power is strong, and bonded article are not easily stripped.
(3) there is environment friendly: the preparation of gelatin-based tackiness agent adopts biodegradable gelatin to make raw material, products obtained therefrom is embedded in underground after using, can degrade voluntarily within very short time under field conditions (factors), environmentally safe, and gelatin-based tackiness agent is a kind of water-soluble glue, be easy to be rinsed out by water.
Embodiment
Below by specific embodiment, the present invention is described in further detail, and wherein, described raw material is industrialization product, and gelatin used in synthesis is the gelatin that general industry is produced, and source is wide, low price; Institute's spent glycol, glycerol are all general Industrial products; Calcium chloride used, sodium carbonate or solution of potassium carbonate are the regular solution of laboratory preparation; Equipment is common reacting by heating production unit; Described raw material number unless otherwise indicated, is parts by weight.
Embodiment 1:
16 kilograms, gelatin, ethylene glycol 0.7 kilogram, water double centner are added 300L and dissolve with in the reactor of agitator.Until completely dissolved, first add the calcium chloride solution (solid masses percentage composition is 2%) of 10 kilograms, stir; Then slowly drip the sodium carbonate solution (solid masses percentage composition is 2%) of 13 kilograms, the rate of addition of sodium carbonate solution is about 0.5 drop/sec; Finally react 5 hours at 60 ~ 65 DEG C of temperature in the reactor with thermometer and reflux exchanger.Be cooled to 40 ~ 45 DEG C after reaction terminates, add 0.3 kilogram of Trisodium Citrate, stir at such a temperature and add until stirring and evenly mixing, then leave standstill under being cooled to normal temperature, obtain clarification thick liquid, be gelatin-based tackiness agent.
This liquid is applied on sheet glass, rear observation cohesiveness to be dried.Through observing the cohesiveness of sheet glass, extremely strong to the cohesiveness of sheet glass after the drying of gelatin-based tackiness agent in the present embodiment, glue and be difficult on a glass be stripped.This tackiness agent has an outstanding feature simultaneously, and namely this tackiness agent can wash with water, and does not leave any residue.
Embodiment 2:
18 kilograms, gelatin, glycerol 1 kilogram, water double centner are added 300L and dissolve with in the reactor of agitator, until completely dissolved, first adds the calcium chloride solution (solid masses percentage composition is 3%) of 10 kilograms, stir; Then slowly drip the solution of potassium carbonate (solid masses percentage composition is 3%) of 13 kilograms, the rate of addition of solution of potassium carbonate is about 0.5 drop/sec; Last in the reactor with thermometer and reflux exchanger, react 6 hours at temperature 65 ~ 70 DEG C.Be cooled to 40 ~ 45 DEG C after reaction terminates, add 0.5 kilogram of sodium sorbate, stir at such a temperature and add until stirring and evenly mixing, then leave standstill under being cooled to normal temperature, obtain clarifying thick liquid, be gelatin-based tackiness agent.
This liquid glue is applied to the surface of paper, observes the cohesiveness of two paper.Through observing the cohesiveness of paper, the bonding of two paper is very firm in the present embodiment, can not with tear or other method separately, while also there will not be drying after the two paper phenomenon of separating.
Embodiment 3:
By 20 kilograms, gelatin, glycerol 1.5 kilograms, 200 kilograms, water adds 400L and dissolves with in the reactor of agitator, until completely dissolved, first adds the calcium chloride solution (solid masses percentage composition is 5%) of 10 kilograms, stirs; Then slowly drip the sodium carbonate solution (solid masses percentage composition is 5%) of 13 kilograms, the rate of addition of sodium carbonate solution is about 0.5 drop/sec; Last in the reactor with thermometer and reflux exchanger, react 8 hours at 60 ~ 65 DEG C of temperature.Be cooled to 40 ~ 45 DEG C after reaction terminates, add the Sodium Propionate of 0.8 kilogram, stir at such a temperature and add until stirring and evenly mixing, then leave standstill and be cooled to normal temperature, obtain clarifying thick liquid, be gelatin-based tackiness agent.
This liquid glue is applied to the surface of aluminium sheet, observes the cohesiveness of aluminium sheet.Through observing the cohesiveness of aluminium sheet, the gelatin-based tackiness agent of gained is very good to the cohesiveness of aluminium sheet in the present embodiment.
Embodiment 4:
By 19 kilograms, gelatin, ethylene glycol 1.2 kilograms, 200 kilograms, water adds 400L and dissolves with in the reactor of agitator, until completely dissolved, first adds the calcium chloride solution (solid masses percentage composition is 4%) of 10 kilograms, stirs; Then slowly drip the solution of potassium carbonate (solid masses percentage composition is 4%) of 13 kilograms, the rate of addition of solution of potassium carbonate is about 0.5 drop/sec, and normal-temperature reaction is to neutral; Last in the reactor with thermometer and reflux exchanger, react 7 hours at 65 ~ 70 DEG C of temperature.Be cooled to 40 ~ 45 DEG C after reaction terminates, add the Trisodium Citrate of 0.6 kilogram, stir at such a temperature and add until stirring and evenly mixing, then leave standstill under being cooled to normal temperature, obtain clarifying thick liquid, be gelatin-based tackiness agent.
This liquid glue is applied to the surface of plank, observes the cohesiveness between plank.Through observing the cohesiveness of plank, firmly combine with timber after the gelatin-based tackiness agent drying of gained in the present embodiment, very strong to the cohesiveness of plank.
Claims (2)
1. a preparation method for gelatin-based tackiness agent, is characterized in that the step comprising following order:
(1) take the water of the gelatin of 16 ~ 20 weight parts, the ethylene glycol of 0.7 ~ 1.5 weight part or glycerol, 100 ~ 200 weight parts, mix in container, heated and stirred half an hour, added component is fully dissolved; To be dissolved completely after, in container, first add the calcium chloride solution of 10 weight parts, stir; Then slowly drip sodium carbonate or the solution of potassium carbonate of 13 weight parts, the rate of addition of sodium carbonate or solution of potassium carbonate is about 0.5 drop/sec; Finally react 5 ~ 8 hours under temperature is 60 ~ 70 DEG C of conditions; Wherein, the solid masses percentage composition of calcium chloride solution is 2% ~ 5%, and the solid masses percentage composition of sodium carbonate or solution of potassium carbonate is 2% ~ 5%;
After (2) (1) steps react completely, treat that fluid temperature is cooled to 40 ~ 45 DEG C, in prepared solution, then add the mould inhibitor of 0.3 ~ 0.8 weight part, mix, leave standstill, after cooling completely, namely obtain gelatin-based adhesive solvent.
2. the preparation method of gelatin-based tackiness agent according to claim 1, is characterized in that: described mould inhibitor is the one in sodium sorbate, Trisodium Citrate, Sodium Propionate.
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| RU2738155C2 (en) * | 2016-05-13 | 2020-12-08 | Роквул Интернэшнл А/С | Method of providing structural insulation |
| CN113249088B (en) * | 2021-06-18 | 2022-06-10 | 陕西科技大学 | Gelatin-based API adhesive and preparation method thereof |
| CN113337247B (en) * | 2021-06-18 | 2022-09-06 | 陕西科技大学 | Formaldehyde-free gelatin-based adhesive with water resistance and antibacterial property for artificial board and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1670111A (en) * | 2004-03-19 | 2005-09-21 | 杨光 | Wood bonding agent and its preparing process |
| CN102899001A (en) * | 2012-10-12 | 2013-01-30 | 华南理工大学 | Method for preparing water soluble non-setting adhesive |
| CN102925074A (en) * | 2012-11-07 | 2013-02-13 | 刘哲 | Solid glue and preparation process thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1670111A (en) * | 2004-03-19 | 2005-09-21 | 杨光 | Wood bonding agent and its preparing process |
| CN102899001A (en) * | 2012-10-12 | 2013-01-30 | 华南理工大学 | Method for preparing water soluble non-setting adhesive |
| CN102925074A (en) * | 2012-11-07 | 2013-02-13 | 刘哲 | Solid glue and preparation process thereof |
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Effective date of registration: 20201221 Address after: Room 204, No. 158, Yaozhuang Avenue, Yaozhuang Town, Jiashan County, Jiaxing City, Zhejiang Province Patentee after: Jiashan Linhu Xincheng Industrial Co.,Ltd. Address before: 411201 No. 2 stone wharf, Yuhu District, Hunan, Xiangtan Patentee before: Hunan University of Science and Technology |
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Denomination of invention: A preparation method of gelatin based adhesive Effective date of registration: 20211222 Granted publication date: 20160113 Pledgee: Bank of China Limited Zhejiang Yangtze River Delta integration demonstration zone sub branch Pledgor: Jiashan Linhu Xincheng Industrial Co.,Ltd. Registration number: Y2021330002614 |