CN104130732A - Cottonseed protein modified urea-formaldehyde resin adhesive powder - Google Patents
Cottonseed protein modified urea-formaldehyde resin adhesive powder Download PDFInfo
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- CN104130732A CN104130732A CN201410384826.2A CN201410384826A CN104130732A CN 104130732 A CN104130732 A CN 104130732A CN 201410384826 A CN201410384826 A CN 201410384826A CN 104130732 A CN104130732 A CN 104130732A
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- formaldehyde resin
- urea
- cottonseed protein
- resin adhesive
- adhesive powder
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Abstract
The invention discloses cottonseed protein modified urea-formaldehyde resin adhesive powder, belonging to the field of urea-formaldehyde resin adhesives and aiming to solve the technical problems that existing urea-formaldehyde resin adhesives release formaldehyde for a long term in the using process, thus causing great impact on the living environments and affecting body health. The cottonseed protein modified urea-formaldehyde resin adhesive powder comprises powdery urea-formaldehyde resin adhesives, refined cottonseed proteins and a curing agent, wherein the curing agent is ammonium chloride or ammonium sulfate. The cottonseed protein modified urea-formaldehyde resin adhesive powder is prepared by adopting a method of mixing. Urea-formaldehyde resin adhesives can be prepared by stirring the materials at high speed after adding water to the cottonseed protein modified urea-formaldehyde resin adhesive powder. The cottonseed protein modified urea-formaldehyde resin adhesive powder is applied to production of three-ply parquet base materials and multi-ply parquets.
Description
Technical field
The invention belongs to urea-formaldehyde resin adhesive field, be specifically related to a kind of cottonseed protein modified urea-formaldehyde resin adhesive powder.
Background technology
Urea-formaldehyde resin adhesive is a kind of exploitation thermosetting polymer tackiness agent early.Because its technique is simple, reasonable price, glue performance is stable, and the advantages such as water white transparency, are widely used in the production of glued board, shaving board, medium density fibre board (MDF), artificial board.But because of long-term release formaldehyde in use, living environment is caused very large, affect healthy.
Summary of the invention
The present invention will solve existing urea-formaldehyde resin adhesive and have the medium-term and long-term release formaldehyde of use procedure, to the living environment problem that makes a big impact; Cottonseed protein modified urea-formaldehyde resin adhesive powder is provided.
The cottonseed protein modified urea-formaldehyde resin adhesive powder of the present invention is made up of following component: powdery urea resin glue, refining cottonseed protein and solidifying agent; Described cottonseed protein modified urea-formaldehyde resin adhesive powder preparation method stirs after each component is mixed and makes.
In the present invention, each composition weight (part) proportioning is: 2～5 parts, powdery urea resin glue 100, refining cottonseed protein 15～30, solidifying agent.
Described refining cottonseed protein obtains by low-temperature solvent extraction process, has avoided Yin Gaowen to steam the protein denaturation of frying and cause, has retained to greatest extent the refining albumen of protein chemistry activity.
Described solidifying agent is ammonium chloride or ammonium sulfate.
Adopt the cottonseed protein modified urea formaldehyde resin adhesive powder system of the present invention for the method for urea-formaldehyde resin adhesive to be: first powdery urea resin glue, refining cottonseed protein, solidifying agent to be pre-mixed evenly under dry state, then after adding water mixing high-speed stirring evenly, can use, free formaldehyde content in urea-formaldehyde resin adhesive liquid is 0.3%, and viscosity is 680mPas～860mPas.
Refining cottonseed vegetable-protein is by the mutual modification of air aldehyde resin glue, reducing formaldehyde pollution environmental problem, cottonseed protein modified urea-formaldehyde resin adhesive powder of the present invention has reduced by 20% left and right air aldehyde resin glue consumption, and this has important strategic importance to reducing artifical plate product's environmental pollution and saving Nonrenewable resources.Also solved the poor difficult problem of the erosion performance of resistance to bacterium under pure protein glue wet condition simultaneously.
Adopt the poplar three-layer glued board that urea-formaldehyde resin adhesive compacting thickness is 3.0mm, glued board gummed intensity is detected, more than bonding strength reaches 2.0Mpa.
Secondary amine in refining cottonseed protein can with urea-formaldehyde resin in methylol and free formaldehyde under heating condition, there is crosslinking reaction, formaldehyde contains carbonyl, can generate with the compound addition of some ammonia the derivative of the ammonia that contains carbon-to-nitrogen double bon, therefore the absorption that albumen can be realized PARA FORMALDEHYDE PRILLS(91,95) class material by chemisorption both can improve bonding strength and water tolerance, had reduced urea-formaldehyde resin adhesive toxicity thereby can reduce again burst size of methanal.
In the present invention, cottonseed protein modified urea-formaldehyde resin adhesive powder is applied to three-layer wood composite flooring base material and multi-layer solid wood composite floor and produces and do not need to change existing Wood-based Panel Production technique, improve sizing agent coating process performance improve simultaneously glue-line toughness and endurance quality.At room temperature sealing is placed does not have the moisture absorption caking phenomenon that wets for 180 days, there is no obvious denaturalization phenomenon yet.Cottonseed protein modified urea-formaldehyde resin adhesive powder stores convenient transportation.
Embodiment
Embodiment one: in present embodiment, cottonseed protein modified urea-formaldehyde resin adhesive powder is made up of 20 parts of refining cottonseed PROTEIN C G58150,100 parts of powdery urea resin glue, 2 parts of ammonium chlorides by ratio of weight and the number of copies.Cottonseed protein modified urea-formaldehyde resin adhesive powder preparation method: be that above-mentioned materials is mixed.
Add 120 parts of water to stir to cottonseed protein modified urea-formaldehyde resin adhesive powder, obtain urea-formaldehyde resin adhesive liquid, can use.
Free formaldehyde content in urea-formaldehyde resin adhesive liquid is 0.3%, and viscosity is 760mPas.
Adopt the poplar three-layer glued board that urea-formaldehyde resin adhesive compacting thickness is 3.0mm, bonding strength is detected to bonding strength 2.1Mpa.
Embodiment two: in present embodiment, cottonseed protein modified urea-formaldehyde resin adhesive powder is made up of 15 parts of refining cottonseed PROTEIN C G58150,100 parts of powdery urea resin glue, 3 parts of ammonium sulfate by ratio of weight and the number of copies.Cottonseed protein modified urea-formaldehyde resin adhesive powder preparation method: be that above-mentioned materials is mixed.
Add 120 parts of water to stir to cottonseed protein modified urea-formaldehyde resin adhesive powder, obtain urea-formaldehyde resin adhesive liquid, can use.
Free formaldehyde content in urea-formaldehyde resin adhesive liquid is 0.3%, and viscosity is 680mPas.
Adopt the poplar three-layer glued board that urea-formaldehyde resin adhesive compacting thickness is 3.0mm, glued board gummed intensity is detected to bonding strength 2.0Mpa.
Embodiment three: in present embodiment, cottonseed protein modified urea-formaldehyde resin adhesive powder is made up of 30 parts of refining cottonseed PROTEIN C G58150,100 parts of powdery urea resin glue, 2 parts of ammonium sulfate by ratio of weight and the number of copies.Cottonseed protein modified urea-formaldehyde resin adhesive powder preparation method: be that above-mentioned materials is mixed.
Refining cottonseed PROTEIN C G58150 protein content >=58% in present embodiment, moisture≤7.5%, ash content≤7.5%, granularity is 150 orders.
Add 120 parts of water to stir to cottonseed protein modified urea-formaldehyde resin adhesive powder, obtain urea-formaldehyde resin adhesive liquid, can use.
Free formaldehyde content in urea-formaldehyde resin adhesive liquid is 0.3%, and viscosity is 860mPas.
Adopt the poplar three-layer glued board that urea-formaldehyde resin adhesive compacting thickness is 3.0mm, glued board gummed intensity is detected to bonding strength 2.2Mpa.
Claims (7)
1. cottonseed protein modified urea-formaldehyde resin adhesive powder, is characterized in that cottonseed protein modified urea-formaldehyde resin adhesive powder is made up of following component: powdery urea resin glue, refining cottonseed protein and solidifying agent.
2. cottonseed protein modified urea-formaldehyde resin adhesive powder according to claim 1, is characterized in that the weight proportion of each component is: 2～5 parts, powdery urea resin glue 100, refining cottonseed protein 15～30, solidifying agent.
3. cottonseed protein modified urea-formaldehyde resin adhesive powder according to claim 1, is characterized in that the weight proportion of each component is: 3 parts, powdery urea resin glue 100, refining cottonseed protein 15, solidifying agent.
4. cottonseed protein modified urea-formaldehyde resin adhesive powder according to claim 1, is characterized in that the weight proportion of each component is: 2 parts, powdery urea resin glue 100, refining cottonseed protein 20, solidifying agent.
5. cottonseed protein modified urea-formaldehyde resin adhesive powder according to claim 1, is characterized in that the weight proportion of each component is: 2 parts, powdery urea resin glue 100, refining cottonseed protein 30, solidifying agent.
6. according to the cottonseed protein modified urea-formaldehyde resin adhesive powder described in any one claim in claim 1-5, it is characterized in that described refining cottonseed protein adopts low-temperature solvent extraction process to prepare.
7. according to the cottonseed protein modified urea-formaldehyde resin adhesive powder described in any one claim in claim 1-5, it is characterized in that described solidifying agent is ammonium chloride or ammonium sulfate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410384826.2A CN104130732B (en) | 2014-08-07 | 2014-08-07 | Cottonseed protein modified urea-formaldehyde resin adhesive powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410384826.2A CN104130732B (en) | 2014-08-07 | 2014-08-07 | Cottonseed protein modified urea-formaldehyde resin adhesive powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104130732A true CN104130732A (en) | 2014-11-05 |
| CN104130732B CN104130732B (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410384826.2A Expired - Fee Related CN104130732B (en) | 2014-08-07 | 2014-08-07 | Cottonseed protein modified urea-formaldehyde resin adhesive powder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110819276A (en) * | 2019-11-25 | 2020-02-21 | 浙江升华云峰新材股份有限公司 | High-strength low-formaldehyde glue and preparation method thereof |
| CN114479761A (en) * | 2022-01-28 | 2022-05-13 | 南京林业大学 | Cottonseed protein-based environment-friendly adhesive for plywood as well as preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101412900A (en) * | 2008-12-05 | 2009-04-22 | 黑龙江省木材科学研究所 | Biological blood globulin wood adhesive |
| CN102086295A (en) * | 2010-06-28 | 2011-06-08 | 永港伟方（北京）科技股份有限公司 | Urea-formaldehyde resin for non-dewatering particleboard and preparation method thereof |
-
2014
- 2014-08-07 CN CN201410384826.2A patent/CN104130732B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101412900A (en) * | 2008-12-05 | 2009-04-22 | 黑龙江省木材科学研究所 | Biological blood globulin wood adhesive |
| CN102086295A (en) * | 2010-06-28 | 2011-06-08 | 永港伟方（北京）科技股份有限公司 | Urea-formaldehyde resin for non-dewatering particleboard and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 田海江等: "玉米蛋白增量剂对脲醛树脂胶合性能的影响", 《林业科技》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110819276A (en) * | 2019-11-25 | 2020-02-21 | 浙江升华云峰新材股份有限公司 | High-strength low-formaldehyde glue and preparation method thereof |
| CN114479761A (en) * | 2022-01-28 | 2022-05-13 | 南京林业大学 | Cottonseed protein-based environment-friendly adhesive for plywood as well as preparation method and application thereof |
| CN114479761B (en) * | 2022-01-28 | 2023-03-28 | 南京林业大学 | Cottonseed protein-based environment-friendly adhesive for plywood and preparation method and application thereof |
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| Publication number | Publication date |
|---|---|
| CN104130732B (en) | 2016-02-03 |
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Granted publication date: 20160203 Termination date: 20160807 |