CN102558551A - Preparation method of rosin modified resin - Google Patents
Preparation method of rosin modified resin Download PDFInfo
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- CN102558551A CN102558551A CN201110441357XA CN201110441357A CN102558551A CN 102558551 A CN102558551 A CN 102558551A CN 201110441357X A CN201110441357X A CN 201110441357XA CN 201110441357 A CN201110441357 A CN 201110441357A CN 102558551 A CN102558551 A CN 102558551A
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- rosin
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- fumaric acid
- modified resin
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- Inks, Pencil-Leads, Or Crayons (AREA)
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Abstract
The invention provides a preparation method of rosin modified resin. The preparation method is implemented according to the steps as follows: rosin is heated until being completely melted under the protection of nitrogen gas; then fumaric acid is added to the melted rosin, and the weight ratio of the fumaric acid to the rosin is 0.15 to 0.2:1; the fumaric acid reacts with the rosin for 2.5 to 3.5 hours under a condition of 195 to 205 DEG C; after the fumaric acid completely reacts with the rosin, anhydrous piperazine is added to a reaction product, and the weight ratio of the anhydrous piperazine to the rosin is 0.01 to 0.03:1; the anhydrous piperazine reacts with the reaction product under a condition of 195 to 205 DEG C to obtain rosin polyamide; then glycerol is added to the rosin polyamide, and the weight ratio of the glycerol to the rosin is 0.1 to 0.15:1; and the glycerol reacts with the rosin polyamide for 2.5 to 3.5 hours under a condition of 205 to 215 DEG C, and then the rosin modified resin is obtained. The rosin modified resin prepared according to the preparation method has reliable quality and can be well dissolved in aqueous alkaline solution, and the aqueous alkaline solution of the rosin modified resin has the advantages of good stability, high transparency and good fluidity, and has low probability of solidification, so that the preparation method is suitable for preparing products such as water-based ink, fruit preservation coatings, and the like.
Description
Technical field
The present invention relates to the modified rosin resin preparing technical field, be specifically related to a kind of preparation method of water-soluble rosin modified resin.
Background technology
Rosin is a kind of renewable natural resin, and staple is various resinous acids.Resinous acid has one three ring skeleton structure; Major part contains two two keys and two kinds of active site of a carboxyl; Through with the esterification of carboxyl, neutralization and with the addition of two keys, hydrogenation, disproportionation, polymerization etc.; Can change the rosiny physicochemical property, expand the rosiny Application Areas greatly, be used widely in industries such as coating, printing ink, tackiness agent.Common modified rosin resin is not soluble in water; Have the water-soluble rosin modified resin that can be used to prepare water color ink in the market; This type water-soluble rosin modified resin has certain dissolubility in alkali aqueous solution; But still exist and to be dissolved in the less stable in the alkali aqueous solution, the shortcoming that transparency is not high, when the preparation water color ink, need use alcoholic solvents such as Virahol or alcohol as solubility promoter, the stability and the transparency of the water color ink that is disposed are not ideal enough.Also have the water-soluble rosin modified resin that is used to prepare the fruit freshness preserving coating-forming agent on the market; With the fruit freshness preserving coating-forming agent of existing these water-soluble rosin modified resin preparation in use; After the fruit freshness preserving coating-forming agent drying surface of fruit easily whiting or return sticking, the aesthetics that causes reducing the fruit freshness preserving effect He influence fruit.
Summary of the invention
The technical problem that the present invention solved provides a kind of preparation method of modified rosin resin; The modified rosin resin of using present method preparation is of fine qualities; Can be dissolved in the alkali aqueous solution preferably, and the good stability of its alkali aqueous solution, transparency high, be difficult for solidifying, good fluidity.
The technical scheme that the present invention adopted is: a kind of preparation method of modified rosin resin; Implement according to the following steps: under nitrogen protection; Rosin is heated to fusion fully; Add fumaric acid then, fumaric acid and rosiny weight ratio are 0.15～0.2 ︰ 1, under 195～205 ℃ of conditions, react 2.5～3.5 hours; Add Piperazine anhydrous after reacting completely again, Piperazine anhydrous and rosiny weight ratio are 0.01～0.03 ︰ 1, and reaction makes the rosin polymeric amide under 195～205 ℃ of conditions; Add glycerine then, glycerine and rosiny weight ratio are 0.1～0.15 ︰ 1, under 205～215 ℃ of conditions, react to make modified rosin resin in 2.5～3.5 hours.
Said fumaric acid and rosiny weight ratio are preferably 0.18 ︰ 1.
Said Piperazine anhydrous and rosiny weight ratio are preferably 0.02 ︰ 1.
Said glycerine and rosiny weight ratio are preferably 0.12 ︰ 1.
The invention has the beneficial effects as follows: 1, of fine qualities according to the prepared modified rosin resin of the present invention, can be dissolved in the alkali aqueous solution preferably, and the good stability of its alkali aqueous solution, transparency high, be difficult for solidifying, good fluidity; 2, can be used to prepare water color ink according to the prepared modified rosin resin of the present invention, the water color ink of being prepared has stability and higher transparency preferably; 3, can be used to prepare the fruit freshness preserving coating-forming agent according to the prepared modified rosin resin of the present invention; The fruit freshness preserving coating-forming agent of being prepared in use; The surface of fruit whiting can not occur or return sticking phenomenon after the fruit freshness preserving coating-forming agent drying, can not reduce fruit freshness preserving effect and the aesthetics that influences fruit.
Embodiment
Below in conjunction with specific embodiment the present invention is further specified.
Embodiment 1
Under nitrogen protection, in the reaction kettle that the rosin of 100 ㎏ is added and be heated to fusion fully, add 18 ㎏ fumaric acid then, reaction is 3 hours under 195～205 ℃ of conditions; Add 2 ㎏ Piperazine anhydrous after reacting completely again, reaction makes the rosin polymeric amide under 195～205 ℃ of conditions; Add 12 ㎏ glycerine then, reaction made modified rosin resin in 3 hours under 205～215 ℃ of conditions.This modified rosin resin can be of fine qualities, can be dissolved in the alkali aqueous solution preferably, and the good stability of its alkali aqueous solution, transparency high, be difficult for solidifying, good fluidity, be applicable to products such as preparation water color ink and fruit freshness preserving coating-forming agent.
Embodiment 2
Under nitrogen protection, in the reaction kettle that the rosin of 100 ㎏ is added and be heated to fusion fully, add 20 ㎏ fumaric acid then, reaction is 3.5 hours under 195～205 ℃ of conditions; Add 3 ㎏ Piperazine anhydrous after reacting completely again, reaction makes the rosin polymeric amide under 195～205 ℃ of conditions; Add 15 ㎏ glycerine then, reaction made modified rosin resin in 3.5 hours under 205～215 ℃ of conditions.This modified rosin resin can be of fine qualities, can be dissolved in the alkali aqueous solution preferably, and the good stability of its alkali aqueous solution, transparency high, be difficult for solidifying, good fluidity, be applicable to products such as preparation water color ink and fruit freshness preserving coating-forming agent.
Embodiment 3
Under nitrogen protection, in the reaction kettle that the rosin of 100 ㎏ is added and be heated to fusion fully, add 15 ㎏ fumaric acid then, reaction is 2.5 hours under 195～205 ℃ of conditions; Add 1 ㎏ Piperazine anhydrous after reacting completely again, reaction makes the rosin polymeric amide under 195～205 ℃ of conditions; Add 10 ㎏ glycerine then, reaction made modified rosin resin in 2.5 hours under 205～215 ℃ of conditions.This modified rosin resin can be of fine qualities, can be dissolved in the alkali aqueous solution preferably, and the good stability of its alkali aqueous solution, transparency high, be difficult for solidifying, good fluidity, be applicable to products such as preparation water color ink and fruit freshness preserving coating-forming agent.
Claims (4)
1. the preparation method of a modified rosin resin is characterized in that, implements according to the following steps: under nitrogen protection; Rosin is heated to fusion fully; Add fumaric acid then, fumaric acid and rosiny weight ratio are 0.15～0.2 ︰ 1, under 195～205 ℃ of conditions, react 2.5～3.5 hours; Add Piperazine anhydrous after reacting completely again, Piperazine anhydrous and rosiny weight ratio are 0.01～0.03 ︰ 1, and reaction makes the rosin polymeric amide under 195～205 ℃ of conditions; Add glycerine then, glycerine and rosiny weight ratio are 0.1～0.15 ︰ 1, under 205～215 ℃ of conditions, react to make modified rosin resin in 2.5～3.5 hours.
2. modified rosin resin according to claim 1 is characterized in that: said fumaric acid and rosiny weight ratio are 0.18 ︰ 1.
3. the preparation method of modified rosin resin according to claim 2, it is characterized in that: said Piperazine anhydrous and rosiny weight ratio are 0.02 ︰ 1.
4. the preparation method of modified rosin resin according to claim 3, it is characterized in that: said glycerine and rosiny weight ratio are 0.12 ︰ 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110441357XA CN102558551A (en) | 2011-12-26 | 2011-12-26 | Preparation method of rosin modified resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110441357XA CN102558551A (en) | 2011-12-26 | 2011-12-26 | Preparation method of rosin modified resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102558551A true CN102558551A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110441357XA Pending CN102558551A (en) | 2011-12-26 | 2011-12-26 | Preparation method of rosin modified resin |
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| CN (1) | CN102558551A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112011275A (en) * | 2020-09-15 | 2020-12-01 | 中国林业科学研究院林产化学工业研究所 | Edible-grade water-based rosin resin, and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5152832A (en) * | 1989-12-21 | 1992-10-06 | Westvaco Corporation | Water-soluble rosin polyamide resins |
-
2011
- 2011-12-26 CN CN201110441357XA patent/CN102558551A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5152832A (en) * | 1989-12-21 | 1992-10-06 | Westvaco Corporation | Water-soluble rosin polyamide resins |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112011275A (en) * | 2020-09-15 | 2020-12-01 | 中国林业科学研究院林产化学工业研究所 | Edible-grade water-based rosin resin, and preparation method and application thereof |
| CN112011275B (en) * | 2020-09-15 | 2022-04-15 | 中国林业科学研究院林产化学工业研究所 | Edible-grade water-based rosin resin, and preparation method and application thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |