CN101985494A - Blocked isocyanate curing agent - Google Patents
Blocked isocyanate curing agent Download PDFInfo
- Publication number
- CN101985494A CN101985494A CN2009103049019A CN200910304901A CN101985494A CN 101985494 A CN101985494 A CN 101985494A CN 2009103049019 A CN2009103049019 A CN 2009103049019A CN 200910304901 A CN200910304901 A CN 200910304901A CN 101985494 A CN101985494 A CN 101985494A
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- CN
- China
- Prior art keywords
- blocked isocyanate
- curing agent
- isocyanate curing
- wax
- oil
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Abstract
The invention discloses a blocked isocyanate curing agent, relating to a curing agent. The invention solves the problems of poor dry mechanical property and wet mechanical property of a board which is glued by isocyanate adhesive. The blocked isocyanate curing agent of the invention is composed the following components in parts by weight: 100 parts of isocyanate and 1-10 parts of sealing agent. If the adhesive containing the blocked isocyanate curing agent is used for bonding boards, the dry mechanical property of the bond board is 1.84-2.36 MPa/m2, and the wet mechanical property of the bond board is 1.04-1.55 MPa/m2.
Description
Technical field
The present invention relates to a kind of solidifying agent.
Background technology
Isocyanic ester is the linking agent in the sizing agent; it is the important component part of adhesive for polyurethane; yet the isocyanate groups in the isocyanate molecule (NCO) has the height nonsaturation; very active; very easily contain the compound reaction of reactive hydrogen atom, thereby the dried mechanical property of the plank after making the application adhesive for polyurethane gluing (is lower than 2MPa/m with other
2) and wet mechanical property (be lower than 1MPa/m
2) poor.
Summary of the invention
Technical problem to be solved by this invention is in order to solve the dried mechanical property of using the plank of adhesive for polyurethane after gluing and the problem of wet poor mechanical property, a kind of preparation method of blocked isocyanate curing agent to be provided.
Blocked isocyanate curing agent of the present invention is made up of 100 parts of isocyanic ester and 1～5 part of encapsulant by weight; Described isocyanic ester is poly methylene poly phenyl poly isocyanate, tolylene diisocyanate, diphenylmethanediisocyanate, isophorone diisocyanate or hexamethylene diisocyanate; Described encapsulant is silicone oil, wax, rubber or mineral oil; Described silicone oil is one or more the composition in methyl-silicone oil, dimethyl silicone oil, amido silicon oil and the hydroxy silicon oil; Described wax is one or more the composition in PE wax, PTFE wax powder, PP wax, amide waxe, FT wax, natural wax, microcrystalline wax, coarse-grain paraffin, polar polyolefin waxes, dehydration sorbic ester, polymeric amide and the tetrafluoroethylene; Described rubber is one or more the composition in thiorubber, silicon rubber, styrene-butadiene rubber(SBR), urethanes, paracril and the elastoprene; Described mineral oil is one or more the composition in lubricating oil, solvent oil and the slushing oil.
Application contains the sizing agent bonding plank of blocked isocyanate curing agent of the present invention, and it is 1.84MPa/m that the plank after the bonding is done mechanical property
2～2.36MPa/m
2, the wet mechanical property of the plank after the bonding is 1.04MPa/m
2～1.55MPa/m
2
Embodiment
Technical solution of the present invention is not limited to following cited embodiment, also comprises the arbitrary combination between each embodiment.
Embodiment one: blocked isocyanate curing agent is made up of 100 parts of isocyanic ester and 1～10 part of encapsulant by weight in the present embodiment.
The present embodiment blocked isocyanate curing agent is to be to mix under 200 rev/mins the condition to obtain after 3 hours by the said ratio low whipping speed with isocyanic ester and encapsulant.
Application contains the sizing agent bonding plank of present embodiment blocked isocyanate curing agent, and the dried mechanical property of bonding plank is 1.84MPa/m
2～2.36MPa/m
2, the wet mechanical property of bonding plank is 1.04MPa/m
2～1.55MPa/m
2
Embodiment two: what present embodiment and embodiment one were different is that described isocyanic ester is poly methylene poly phenyl poly isocyanate, tolylene diisocyanate, diphenylmethanediisocyanate, isophorone diisocyanate or hexamethylene diisocyanate.Other is identical with embodiment one.
Embodiment three: what present embodiment was different with embodiment one or two is that described encapsulant is silicone oil, wax, rubber or mineral oil.Other is identical with embodiment one or two.
Embodiment four: present embodiment and embodiment three are different is that described silicone oil is one or more the composition in methyl-silicone oil, dimethyl silicone oil, amido silicon oil and the hydroxy silicon oil.Other is identical with embodiment three.
When the silicone oil described in the present embodiment was composition, each component can be by any than mixing.
Embodiment five: present embodiment and embodiment three are different is that described wax is one or more the composition in PE wax, PTFE wax powder, PP wax, amide waxe, FT wax, natural wax, microcrystalline wax, coarse-grain paraffin, polar polyolefin waxes, dehydration sorbic ester, polymeric amide and the tetrafluoroethylene.Other is identical with embodiment three.
When the wax described in the present embodiment was composition, each component can be by any than mixing.
Embodiment six: present embodiment and embodiment three are different is that described rubber is one or more the composition in thiorubber, silicon rubber, styrene-butadiene rubber(SBR), urethanes, paracril and the elastoprene.Other is identical with embodiment three.
When the described rubber of present embodiment was composition, each component can be by any than mixing.
Embodiment seven: present embodiment and embodiment three are different is that described mineral oil is one or more the composition in lubricating oil, solvent oil and the slushing oil.Other is identical with embodiment three.
When the described mineral oil of present embodiment was composition, each component can be by any than mixing.
Embodiment eight: blocked isocyanate curing agent is made up of 100 parts of poly methylene poly phenyl poly isocyanates and 10 parts of dimethyl silicone oils by weight in the present embodiment.
The present embodiment blocked isocyanate curing agent is to be to mix under 200 rev/mins the condition to obtain after 3 hours by the said ratio low whipping speed with isocyanic ester and encapsulant.
Present embodiment adopts following experimental verification invention effect, and is specific as follows: with 70 weight part polyvinyl acetate (PVA), the pure polyisocyanates of 12～15 weight parts and 30 weight part granularities is that 40 purpose acetylated starch low whipping speeds are to mix under 200 rev/mins the condition to obtain sizing agent 1; With 70 weight part polyvinyl acetate (PVA), 12～15 weight part present embodiment blocked isocyanate curing agents and 30 weight part granularities is that 40 purpose acetylated starch low whipping speeds are to mix under 200 rev/mins the condition to obtain sizing agent 2; With 70 weight part polyvinyl acetate (PVA), the pure polyisocyanates of 12～15 weight parts and 30 weight part granularities is that 80 purpose acetylated starch low whipping speeds are to mix under 200 rev/mins the condition to obtain sizing agent 3; With 70 weight part polyvinyl acetate (PVA), 12～15 weight part present embodiment blocked isocyanate curing agents and 30 weight part granularities is that 80 purpose acetylated starch low whipping speeds are to mix under 200 rev/mins the condition to obtain sizing agent 4; Use sizing agent 1, sizing agent 2, sizing agent 3 and sizing agent 4 bonding planks respectively, and test test result such as table 1 according to GB T98462004 standard:
Table 1
| Sizing agent | Do mechanical property (MPa/m 2) | Wet mechanical property (MPa/m 2) |
| Sizing agent 1 | 1.98 | 0.83 |
| Sizing agent 2 | 2.24 | 1.54 |
| Sizing agent 3 | 1.93 | 0.64 |
| Sizing agent 4 | 2.15 | 1.34 |
As shown in Table 1, adhesiveproperties and the water resistance that has added the sizing agent of present embodiment gained blocked isocyanate curing agent all can reach standard.
Embodiment nine: blocked isocyanate curing agent is made up of 100 parts of poly methylene poly phenyl poly isocyanates and 10 parts of hydroxy silicon oils by weight in the present embodiment.
The present embodiment blocked isocyanate curing agent is to be to mix under 200 rev/mins the condition to obtain after 3 hours by the said ratio low whipping speed with isocyanic ester and encapsulant.
Present embodiment adopts following experimental verification invention effect, and is specific as follows: with 70 weight part polyvinyl acetate (PVA), the pure polyisocyanates of 12～15 weight parts and 30 weight part granularities is that 40 purpose acetylated starch low whipping speeds are to mix under 200 rev/mins the condition to obtain sizing agent 1; With 70 weight part polyvinyl acetate (PVA), 12～15 weight part present embodiment blocked isocyanate curing agents and 30 weight part granularities is that 40 purpose acetylated starch low whipping speeds are to mix under 200 rev/mins the condition to obtain sizing agent 2; With 70 weight part polyvinyl acetate (PVA), the pure polyisocyanates of 12～15 weight parts and 30 weight part granularities is that 80 purpose acetylated starch low whipping speeds are to mix under 200 rev/mins the condition to obtain sizing agent 3; With 70 weight part polyvinyl acetate (PVA), 12～15 weight part present embodiment blocked isocyanate curing agents and 30 weight part granularities is that 80 purpose acetylated starch low whipping speeds are to mix under 200 rev/mins the condition to obtain sizing agent 4; Use sizing agent 1, sizing agent 2, sizing agent 3 and sizing agent 4 bonding planks respectively, and test test result such as table 2 according to the GB-T9846-2004 standard:
Table 2
| Sizing agent | Do mechanical property (MPa/m 2) | Wet mechanical property (MPa/m 2) |
| Sizing agent 1 | 1.98 | 0.83 |
| Sizing agent 2 | 2.16 | 1.24 |
| Sizing agent 3 | 1.84 | 0.64 |
| Sizing agent 4 | 2.13 | 1.04 |
As shown in Table 2, adhesiveproperties and the water resistance that has added the sizing agent of present embodiment gained blocked isocyanate curing agent all can reach standard.
Embodiment ten: blocked isocyanate curing agent is made up of 100 parts of poly methylene poly phenyl poly isocyanates and 10 parts of amido silicon oils by weight in the present embodiment.
The present embodiment blocked isocyanate curing agent is to be to mix under 200 rev/mins the condition to obtain after 3 hours by the said ratio low whipping speed with isocyanic ester and encapsulant.
Present embodiment adopts following experimental verification invention effect, and is specific as follows: with 70 weight part polyvinyl acetate (PVA), the pure polyisocyanates of 12～15 weight parts and 30 weight part granularities is that 40 purpose acetylated starch low whipping speeds are to mix under 200 rev/mins the condition to obtain sizing agent 1; With 70 weight part polyvinyl acetate (PVA), 12～15 weight part present embodiment blocked isocyanate curing agents and 30 weight part granularities is that 40 purpose acetylated starch low whipping speeds are to mix under 200 rev/mins the condition to obtain sizing agent 2; With 70 weight part polyvinyl acetate (PVA), the pure polyisocyanates of 12～15 weight parts and 30 weight part granularities is that 80 purpose acetylated starch low whipping speeds are to mix under 200 rev/mins the condition to obtain sizing agent 3; With 70 weight part polyvinyl acetate (PVA), 12～15 weight part present embodiment blocked isocyanate curing agents and 30 weight part granularities is that 80 purpose acetylated starch low whipping speeds are to mix under 200 rev/mins the condition to obtain sizing agent 4; Use sizing agent 1, sizing agent 2, sizing agent 3 and sizing agent 4 bonding planks respectively, and test test result such as table 3 according to the GB-T9846-2004 standard:
Table 3
| Sizing agent | Do mechanical property (MPa/m 2) | Wet mechanical property (MPa/m 2) |
| Sizing agent 1 | 1.98 | 0.83 |
| Sizing agent 2 | 2.25 | 1.42 |
| Sizing agent 3 | 1.93 | 0.64 |
| Sizing agent 4 | 2.06 | 1.20 |
As shown in Table 3, adhesiveproperties and the water resistance that has added the sizing agent of present embodiment gained blocked isocyanate curing agent all can reach standard.
Embodiment 11: blocked isocyanate curing agent is made up of 100 parts of poly methylene poly phenyl poly isocyanates and 10 parts of styrene-butadiene rubber(SBR) by weight in the present embodiment.
The present embodiment blocked isocyanate curing agent is to be to mix under 200 rev/mins the condition to obtain after 3 hours by the said ratio low whipping speed with isocyanic ester and encapsulant.
Present embodiment adopts following experimental verification invention effect, and is specific as follows: with 70 weight part polyvinyl acetate (PVA), the pure polyisocyanates of 12～15 weight parts and 30 weight part granularities is that 40 purpose acetylated starch low whipping speeds are to mix under 200 rev/mins the condition to obtain sizing agent 1; With 70 weight part polyvinyl acetate (PVA), 12～15 weight part present embodiment blocked isocyanate curing agents and 30 weight part granularities is that 40 purpose acetylated starch low whipping speeds are to mix under 200 rev/mins the condition to obtain sizing agent 2; With 70 weight part polyvinyl acetate (PVA), the pure polyisocyanates of 12～15 weight parts and 30 weight part granularities is that 80 purpose acetylated starch low whipping speeds are to mix under 200 rev/mins the condition to obtain sizing agent 3; With 70 weight part polyvinyl acetate (PVA), 12～15 weight part present embodiment blocked isocyanate curing agents and 30 weight part granularities is that 80 purpose acetylated starch low whipping speeds are to mix under 200 rev/mins the condition to obtain sizing agent 4; Use sizing agent 1, sizing agent 2, sizing agent 3 and sizing agent 4 bonding planks respectively, and test test result such as table 4 according to the GB-T9846-2004 standard:
Table 4
| Sizing agent | Do mechanical property (MPa/m 2) | Wet mechanical property (MPa/m 2) |
| Sizing agent 1 | 1.98 | 0.83 |
| Sizing agent 2 | 2.36 | 1.55 |
| Sizing agent 3 | 1.93 | 0.64 |
| Sizing agent 4 | 2.32 | 1.32 |
As shown in Table 4, adhesiveproperties and the water resistance that has added the sizing agent of present embodiment gained blocked isocyanate curing agent all can reach standard.
Claims (7)
1. blocked isocyanate curing agent is characterized in that blocked isocyanate curing agent is made up of 100 parts of isocyanic ester and 1～10 part of encapsulant by weight.
2. blocked isocyanate curing agent according to claim 1 is characterized in that described isocyanic ester is poly methylene poly phenyl poly isocyanate, tolylene diisocyanate, diphenylmethanediisocyanate, isophorone diisocyanate or hexamethylene diisocyanate.
3. blocked isocyanate curing agent according to claim 1 and 2 is characterized in that described encapsulant is silicone oil, wax, rubber or mineral oil.
4. blocked isocyanate curing agent according to claim 3 is characterized in that described silicone oil is one or more the composition in methyl-silicone oil, dimethyl silicone oil, amido silicon oil and the hydroxy silicon oil.
5. blocked isocyanate curing agent according to claim 3 is characterized in that described wax is one or more the composition in PE wax, PTFE wax powder, PP wax, amide waxe, FT wax, natural wax, microcrystalline wax, coarse-grain paraffin, polar polyolefin waxes, dehydration sorbic ester, polymeric amide and the tetrafluoroethylene.
6. blocked isocyanate curing agent according to claim 3 is characterized in that described rubber is one or more the composition in thiorubber, silicon rubber, styrene-butadiene rubber(SBR), urethanes, paracril and the elastoprene.
7. blocked isocyanate curing agent according to claim 3 is characterized in that described mineral oil is one or more the composition in lubricating oil, solvent oil and the slushing oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103049019A CN101985494A (en) | 2009-07-28 | 2009-07-28 | Blocked isocyanate curing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103049019A CN101985494A (en) | 2009-07-28 | 2009-07-28 | Blocked isocyanate curing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101985494A true CN101985494A (en) | 2011-03-16 |
Family
ID=43709894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103049019A Pending CN101985494A (en) | 2009-07-28 | 2009-07-28 | Blocked isocyanate curing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101985494A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105017838A (en) * | 2015-08-20 | 2015-11-04 | 国电联合动力技术(连云港)有限公司 | PU (polyurethane) putty curing agent for fan blades and preparation method of curing agent |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4055550A (en) * | 1976-12-08 | 1977-10-25 | Cargill, Incorporated | Continuous process for the production of partially blocked isocyanates |
-
2009
- 2009-07-28 CN CN2009103049019A patent/CN101985494A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4055550A (en) * | 1976-12-08 | 1977-10-25 | Cargill, Incorporated | Continuous process for the production of partially blocked isocyanates |
Non-Patent Citations (3)
| Title |
|---|
| 王文荣等: "硅烷封端羟基硅油改性端硅氧烷聚氨酯密封胶的研究", 《精细化工》 * |
| 葛俊伟等: "电泳涂料用异氰酸酯固化剂的封闭剂", 《现代涂料与涂装》 * |
| 陈精华等: "氨基硅油改性聚氨酯弹性体材料的研究", 《化学建材》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105017838A (en) * | 2015-08-20 | 2015-11-04 | 国电联合动力技术(连云港)有限公司 | PU (polyurethane) putty curing agent for fan blades and preparation method of curing agent |
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Application publication date: 20110316 |