CN105542679A - Method for preparing damping adhesive for automobile steel plates - Google Patents
Method for preparing damping adhesive for automobile steel plates Download PDFInfo
- Publication number
- CN105542679A CN105542679A CN201510967578.9A CN201510967578A CN105542679A CN 105542679 A CN105542679 A CN 105542679A CN 201510967578 A CN201510967578 A CN 201510967578A CN 105542679 A CN105542679 A CN 105542679A
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- CN
- China
- Prior art keywords
- weight
- damping
- epoxy resin
- preparation
- glue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J109/00—Adhesives based on homopolymers or copolymers of conjugated diene hydrocarbons
- C09J109/02—Copolymers with acrylonitrile
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2309/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
- C08J2309/02—Copolymers with acrylonitrile
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2463/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Epoxy Resins (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to a method for preparing a damping adhesive for automobile steel plates. A formula of the adhesive contains the ingredients in percentage by weight: 16.5-21wt.% of butadiene-acrylonitrile rubber, 3.9-5.4wt.% of epoxy resin, 3.9-5.4wt.% of resol, 0.3-0.9wt.% of full-methoxylation melamine-formaldehyde resin, 0.24-0.36wt.% of benzoyl peroxide and 75-67wt.% of mixed solvent. A preparation process comprises the steps: plastifying the butadiene-acrylonitrile rubber on a double-roller machine for 8-15 minutes, then, adding the plastified butadiene-acrylonitrile rubber into the mixed solvent consisting of ethyl acetate and butyl acetate, and carrying out stirring, mixing and dissolving; and adding the epoxy resin, the resol, the full-methoxylation melamine-formaldehyde resin and the benzoyl peroxide into the solution, and carrying out continuous stirring, so as to prepare uniform and viscous liquid adhesive, wherein the viscosity of the liquid adhesive is not lower than 5,000mPa.s (at the temperature of 25 DEG C), and the solid content of the liquid adhesive is not lower than 29wt.%. Through bonding composite sandwiched steel plates by the liquid adhesive, the T-peeling strength is not lower than 52N/cm, the damping coefficient is not smaller than 0.2, and no obvious resonance is present.
Description
Technical field
The present invention relates to a kind of preparation method of damping glue, relate to the preparation method that a kind of damping autobody sheet sticks with glue agent or rather.
Background technology
China is automobile production big country, and be also the big country of consumer automotive, automobile is ridden instead of walk and entered common people house.Along with the requirement cry of people to automobile ride quality is more and more higher, automaker is also improving the effect expected value of damping damping.For autobody sheet to have ratio of damping high, the exploitation of the damping glue that T-stripping strength is also high also places on the agenda.
Prior art CN1900196A, on January 24th, 2007 discloses a kind of adhesive of damping steel plate, and it has ratio of damping μ > 0.15 (60 ~ 120 DEG C), T-shaped stripping strength 50N/cm.So far, the autobody sheet of Baosteel is still in use.But user is strongly required to improve ratio of damping.Because damping steel plate is not only for Auto-body manufacturing, also to solve the damping problem at bottom shells of gasoline tanks high temperature (50 ~ 90 DEG C) position specially, specify prospect to like this developing direction of damping glue, researchist is proposed to the new problem of the high temperature resistant damping glue of preparation.So reply prior art is improved, and especially improves its ratio of damping at high temperature, meets the performance requriements of user as early as possible.
Summary of the invention
The present inventors specialize in for prior art weak point, finally have found a kind of new way, namely propose new linking agent, change the form of damping glue, and the damping glue of preparation band micropore, reaches the effect improving damping.
Below the technical scheme that the present invention solves the problems of the technologies described above:
Damping autobody sheet sticks with glue a preparation method for agent, and the formula composition of this tackiness agent comprises: 16.5 ~ 21 % by weight paracrils, 3.9 ~ 5.4 % by weight epoxy resin, 3.9 ~ 5.4 % by weight resoles, 0.3 ~ 0.9 % by weight full methyl-etherified terpolycyantoamino-formaldehyde resin, 0.24 ~ 0.36 % by weight benzoyl peroxide, 75 ~ 67 % by weight mixed solvents; Preparation process is: first plasticate paracril on twin-roll machine 8 ~ 15min, and then add in the mixed solvent of vinyl acetic monomer and N-BUTYL ACETATE composition, the weight ratio of vinyl acetic monomer and N-BUTYL ACETATE mixed solvent is 1:1, is uniformly mixed dissolving; Then add epoxy resin, resole, full methyl-etherified terpolycyantoamino-formaldehyde resin and benzoyl peroxide, Keep agitation is tacky adhesive liquid uniformly, filters, filling.
Epoxy resin described in the present invention consist of 60 ~ 70 % by weight bisphenol A type epoxy resins and 40 ~ 30 weight novolac epoxys; Bisphenol A type epoxy resin oxirane value is 0.41 ~ 0.47, and novolac epoxy oxirane value is 0.40 ~ 0.48.
Full methyl-etherified terpolycyantoamino-formaldehyde resin Con trolling index described in the present invention is: relative density 1.215, refractive index 1.515 ~ 1.525, flash-point >=93 DEG C, free formaldehyde content >=0.25 % by weight.Its functional group is many, and degree of crosslinking is large, and to the use temperature improving damping glue, the intensity improving tackiness agent is benefited.
The present invention uses benzoyl peroxide to make whipping agent, due to its existence, makes steel plate and adhesive contact face produce micropore vacuolar membrane, causes steel plate ratio of damping to bring up to more than 0.2.
Keep agitation described in the present invention is tacky adhesive liquid uniformly, its viscosity >=5000mPas (25 DEG C), solid content >=29 % by weight, with even tacky adhesive liquid adhesive composite sandwich steel plate, in 250 DEG C of baking 2 ~ 3min, T-stripping strength >=52N/cm, after 180 DEG C of baking 25min, be cooled to 60 ~ 80 DEG C, ratio of damping >=0.2 of the composite sandwich steel plate measured, without obviously resonating.
Embodiment
Especially exemplified by embodiment, it is described to implement the present invention, but embodiment limitation of the present invention anything but.
Embodiment 1
Plasticate 19g paracril on two rod machine 11min, then 34g vinyl acetic monomer, 34g N-BUTYL ACETATE is added, be stirred to dissolving, then 3.1g bisphenol A type epoxy resin, 1.7g novolac epoxy, 4.7g resole, the full methyl-etherified terpolycyantoamino-formaldehyde resin of 0.6g and 0.3g benzoyl peroxide is added, continue stirring until the liquid of even thickness, after filtration, filling for user.This viscous liquid is exactly product adhesive of damping steel plate, has viscosity 5000mPas (25 DEG C), solid content 29 % by weight, T-stripping strength 52N/cm, composite sandwich steel plate ratio of damping 0.2.
Embodiment 2
Plasticate 16.5g paracril 8min, add 29g vinyl acetic monomer, 29g N-BUTYL ACETATE, 2.3g bisphenol A type epoxy resin, 1.6g novolac epoxy, 3.9g resole, the full methyl-etherified terpolycyantoamino-formaldehyde resin of 0.3g and 0.24g benzoyl peroxide, continue stirring until the liquid of even thickness, after filtration, filling for user.This viscous liquid is exactly product adhesive of damping steel plate, has viscosity 5010mPas (25 DEG C), solid content 30 % by weight, T-stripping strength 53N/cm, composite sandwich steel plate ratio of damping 0.21.
Embodiment 3
Plasticate 21g paracril 15min, add 39g vinyl acetic monomer, 39g N-BUTYL ACETATE, 3.8g bisphenol A type epoxy resin, 1.6g novolac epoxy, 5.4g resole, the full methyl-etherified terpolycyantoamino-formaldehyde resin of 0.9g and 0.36g benzoyl peroxide, continue stirring until the liquid of even thickness, after filtration, filling for user.This viscous liquid is exactly product adhesive of damping steel plate, has viscosity 5015mPas (25 DEG C), solid content 31 % by weight, T-stripping strength 54N/cm, composite sandwich steel plate ratio of damping 0.22.
Claims (4)
1. a damping autobody sheet sticks with glue the preparation method of agent, it is characterized in that, the formula composition of this tackiness agent comprises: 16.5 ~ 21 % by weight paracrils, 3.9 ~ 5.4 % by weight epoxy resin, 3.9 ~ 5.4 % by weight resoles, 0.3 ~ 0.9 % by weight full methyl-etherified terpolycyantoamino-formaldehyde resin, 0.24 ~ 0.36 % by weight benzoyl peroxide, 75 ~ 67 % by weight mixed solvents; Preparation process is: first plasticate paracril on twin-roll machine 8 ~ 15min, and then add in the mixed solvent of vinyl acetic monomer and N-BUTYL ACETATE composition, the weight ratio of vinyl acetic monomer and N-BUTYL ACETATE mixed solvent is 1:1, is uniformly mixed dissolving; Then add epoxy resin, resole, full methyl-etherified terpolycyantoamino-formaldehyde resin and benzoyl peroxide, Keep agitation is tacky adhesive liquid uniformly, filters, filling.
2. a kind of damping autobody sheet according to claim 1 sticks with glue the preparation method of agent, it is characterized in that, described epoxy resin consist of 60 ~ 70 % by weight bisphenol A type epoxy resins and 40 ~ 30 weight novolac epoxys; Bisphenol A type epoxy resin oxirane value is 0.41 ~ 0.47, and novolac epoxy oxirane value is 0.40 ~ 0.48.
3. a kind of damping autobody sheet according to claim 1 sticks with glue the preparation method of agent, it is characterized in that, described full methyl-etherified terpolycyantoamino-formaldehyde resin Con trolling index is: relative density 1.215, refractive index 1.515 ~ 1.525, flash-point >=93 DEG C, free formaldehyde content >=0.25 % by weight.
4. a kind of damping autobody sheet according to claim 1 sticks with glue the preparation method of agent, it is characterized in that, described Keep agitation is tacky adhesive liquid uniformly, its viscosity >=5000mPas (25 DEG C), solid content >=29 % by weight, with even tacky adhesive liquid adhesive composite sandwich steel plate, in 250 DEG C of baking 2 ~ 3min, T-stripping strength >=52N/cm, 60 ~ 80 DEG C are cooled to after 180 DEG C of baking 25min, ratio of damping >=0.2 of the composite sandwich steel plate measured, without obviously resonating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967578.9A CN105542679A (en) | 2015-12-21 | 2015-12-21 | Method for preparing damping adhesive for automobile steel plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967578.9A CN105542679A (en) | 2015-12-21 | 2015-12-21 | Method for preparing damping adhesive for automobile steel plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105542679A true CN105542679A (en) | 2016-05-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510967578.9A Pending CN105542679A (en) | 2015-12-21 | 2015-12-21 | Method for preparing damping adhesive for automobile steel plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105542679A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1900196A (en) * | 2006-07-04 | 2007-01-24 | 上海市合成树脂研究所 | Process for preparing adhesive of damping steel plate |
| CN102115647A (en) * | 2009-12-30 | 2011-07-06 | 上海市合成树脂研究所 | Damping glue for vibration reducing plate and preparation method thereof |
| CN103031087A (en) * | 2012-12-19 | 2013-04-10 | 上海市合成树脂研究所 | Method for preparing high-temperature damping adhesive |
-
2015
- 2015-12-21 CN CN201510967578.9A patent/CN105542679A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1900196A (en) * | 2006-07-04 | 2007-01-24 | 上海市合成树脂研究所 | Process for preparing adhesive of damping steel plate |
| CN102115647A (en) * | 2009-12-30 | 2011-07-06 | 上海市合成树脂研究所 | Damping glue for vibration reducing plate and preparation method thereof |
| CN103031087A (en) * | 2012-12-19 | 2013-04-10 | 上海市合成树脂研究所 | Method for preparing high-temperature damping adhesive |
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Application publication date: 20160504 |