CN1221623C - Process for preparing modified bone-glue adhesive - Google Patents
Process for preparing modified bone-glue adhesive Download PDFInfo
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- CN1221623C CN1221623C CN 200310118978 CN200310118978A CN1221623C CN 1221623 C CN1221623 C CN 1221623C CN 200310118978 CN200310118978 CN 200310118978 CN 200310118978 A CN200310118978 A CN 200310118978A CN 1221623 C CN1221623 C CN 1221623C
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- gelatine
- adhesive
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Abstract
The present invention relates to a chemical product, more specifically an adhesive preparation method namely a preparation method of a bone glue modified adhesive. The present invention takes common bone glue as principal raw materials which are properly degraded, and selects a monomer containing epoxy groups to prepare an adhesive product by the cross-linking copolymerization reaction under a certain condition. The reaction time is short, and the reaction can be completed in 3 hours. The present invention has the advantages that the low temperature frozen resistance is good, solidifying point is less than-5 DEG C, drying speed is fast, drying time is less than 24 hours at the room temperature, the stability is high, the retention time is more than 6 months, the synthesizing time is short, and the adhesive strength is high. The present invention is a high-performance environment protective adhesive for wood.
Description
(1) technical field
The present invention relates to a kind of chemical industry articles for use, a kind of preparation method of tackiness agent is the preparation method of gelatine modified adhesive specifically.
(2) background technology
Gelatine be a kind of nontoxic, harmless, pollution-free, low-cost, have high-adhesive-strength, biodegradable water-soluble natural sizing material, its main drawback is that the glue zero pour is higher, is solid under the room temperature, needs heating and melting during use, uses inconvenience; Rate of drying is slow, and the objectionable constituent such as containing formaldehyde of adding in the modified product more, contaminate environment.
(3) summary of the invention
The invention solves gelatine glue zero pour height, the problem that rate of drying is slow.The object of the present invention is to provide a kind of rate of drying fast, the preparation method of gelatine tackiness agent bonding strength height, free of contamination a kind of gelatine modified adhesive.The present invention finishes by following steps: dissolve by 1: 1 weight ratio common gelatine and water (1) with gelatine, in the mixture of gelatine and water, add alkaline solution (sodium hydroxide solution) again, the solid content consumption of its alkali is 8～10% gelatine quality, degradation temperature is 70～80 ℃, and degradation time is 0.5～1 hour; (2) should guarantee reaction system PH=10～11 in the copolymerzation with cross-linking stage, select epoxy chloropropane as monomer, its epoxy chloropropane consumption is 8～10% gelatine quality, temperature of reaction is 60～70 ℃, reaction times is 1～2 hour, stirring velocity is answered PH=10～11 of guarantee system between the reaction period about 600 rev/mins; (3) be cooled to room temperature rapidly, mix siccative one wilkinite in reaction product, the consumption of its siccative is 2～8% glue quality, obtains the tawny viscous liquid, is product, and the room temperature sealing is preserved.The tackiness agent of the present invention preparation has kept gelatine tackiness agent bonding strength height, free of contamination advantage, has good low temperature anti-freezing property simultaneously, zero pour＜-5 ℃; Rate of drying is fast, room temperature following time of drying＜24 hours; Good stability, shelf time＞6 month; And generated time is short, and cost is low, the open application of gelatine modified product in timber, paper adhesive field.
(4) embodiment
The present invention is further detailed explanation below in conjunction with embodiment:
Implementation method of the present invention is: this is reflected at (1) under the water bath with thermostatic control and carries out.In there-necked flask, take by weighing gelatine 25g, add 25g water, 60 ℃ of following stirring and dissolving; Be warming up to 80 ℃, get 2g sodium hydroxide and add in the mixture that water 8～10g wiring solution-forming adds gelatine and water, constant temperature stirs the 0.5h that degrades down.(2) be cooled to 70 ℃, drip epoxy chloropropane 2g, isothermal reaction 1.5h; Control PH=10～11 during this time.(3) be cooled to room temperature rapidly, mix the siccative of 2～8% glue quality such as wilkinite etc., promptly obtain the tawny viscous product.
Claims (1)
- A kind of preparation method of gelatine modified adhesive, it is characterized in that (1) is 1: 1 by the weight ratio of common gelatine and water, gelatine is dissolved, in the mixture of gelatine and water, add alkaline solution-sodium hydroxide solution, the solid content of its alkaline solution is 8～10% of a gelatine, degradation temperature is 70～80 ℃, and degradation time is 0.5～1 hour; (2) in copolymerzation with cross-linking elementary reaction system PH=10～11, getting the epoxy chloropropane consumption is 8～10% gelatine quality, and temperature of reaction is 60～70 ℃, and the reaction times is 1～2 hour; (3) mix siccative-wilkinite in reaction product, the consumption of its siccative is 2～8% glue quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310118978 CN1221623C (en) | 2003-11-17 | 2003-11-17 | Process for preparing modified bone-glue adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310118978 CN1221623C (en) | 2003-11-17 | 2003-11-17 | Process for preparing modified bone-glue adhesive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1544567A CN1544567A (en) | 2004-11-10 |
| CN1221623C true CN1221623C (en) | 2005-10-05 |
Family
ID=34338098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310118978 Expired - Fee Related CN1221623C (en) | 2003-11-17 | 2003-11-17 | Process for preparing modified bone-glue adhesive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1221623C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280171B (en) * | 2008-04-28 | 2010-06-16 | 陕西科技大学 | Preparation of high-strength environment-friendly skin gelatin |
| CN103805131B (en) * | 2013-11-07 | 2016-01-20 | 西京学院 | A kind of method utilizing discarded chicken feather to prepare environment-friendly adhesive |
| CN107793578B (en) * | 2016-08-30 | 2021-11-16 | 北京联合一工科贸中心 | Glutinous rice pulp-bone glue composite gel material, preparation method and application thereof |
| CN106497513A (en) * | 2016-10-19 | 2017-03-15 | 陕西科技大学 | A kind of collagen class adhesive and preparation method thereof |
| CN107057634A (en) * | 2017-01-22 | 2017-08-18 | 陕西科技大学 | A kind of discoloration method of gelatine |
| CN107629774B (en) * | 2017-11-07 | 2019-01-04 | 成都劳恩普斯科技有限公司 | It is a kind of temporarily to block up diversion agent and preparation method thereof |
-
2003
- 2003-11-17 CN CN 200310118978 patent/CN1221623C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1544567A (en) | 2004-11-10 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051005 Termination date: 20091217 |