CN101875826B - Thermoplastic elastic body joint adhesive, and preparation method and jointing method thereof - Google Patents
Thermoplastic elastic body joint adhesive, and preparation method and jointing method thereof Download PDFInfo
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- CN101875826B CN101875826B CN2009101071639A CN200910107163A CN101875826B CN 101875826 B CN101875826 B CN 101875826B CN 2009101071639 A CN2009101071639 A CN 2009101071639A CN 200910107163 A CN200910107163 A CN 200910107163A CN 101875826 B CN101875826 B CN 101875826B
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- tackiness agent
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Abstract
The invention belongs to the field of adhesives, and in particular discloses a thermoplastic elastic body joint adhesive, and a preparation method and a jointing method thereof. The thermoplastic elastic body joint adhesive comprises polyethylene, toluene and trichloroethylene, wherein the toluene content is 400 to 500 weight percent and the trichloroethylene content is 50 to 100 weight percent based on the weight of the polyethylene. After a jointing process is performed by using the thermoplastic elastic body joint adhesive provided by the invention, no obvious trace occurs on the outer surface at an adhesion place between a thermoplastic elastic body sealing strip and a joint block to ensure attractive appearance; and the adhesive strength of the thermoplastic elastic body sealing strip and the joint block is obviously improved.
Description
[technical field]
The present invention relates to a kind of tackiness agent, especially a kind ofly be used for the tackiness agent of thermoplastic elastic body sealing strip joint and adopt this tackiness agent to carry out the method for joint.
[background technology]
Sealed strip is widely used component in fields such as automobile, building; The door, window, Cang Gai etc. that are mainly used in seal automobile, building need the position, gap of sealing; Remove and seal; Promptly prevent also to play effects such as damping, sound insulation, decoration in the objectionable impuritiess intrusion cars such as outside rainwater, sand and dust and in the buildings, to improve the trolley part working life and to take security.Along with the development of society, people's aesthetic requirement is increasingly high, and is therefore also increasingly high to the appearance requirement of product, all is combined with the joint piece in the end of sealed strip.The appearance requirement of the joint piece of sealed strips such as door, window is smooth attractive in appearance, and between sealed strip and the joint piece certain cohesive strength must be arranged.
Sealed strip of the prior art is divided into rubber weather strip and plastic sealing strip, wherein the joint technology of rubber weather strip comparative maturity.And for plastic sealing strip, especially thermoplastic elastomer (TPV) sealed strip owing to the restriction of sealed strip and joint block of material, adopts conventional joint technology, the cohesive strength that is difficult to obtain.
In order to improve the cohesive strength of plastic sealing strip and joint piece, the common way that adopts is the contact area that increases joint piece and sealed strip, thereby improves strength of joint.But, increase the aesthetic measure that contact area has influenced sealed strip joint piece to a great extent, and strength of joint is also undesirable.
[summary of the invention]
Poor in order to overcome in the prior art cohesive strength of TPV sealed strip and joint piece; The shortcoming that appearance is attractive in appearance inadequately; The invention provides a kind of thermoplastic elastomer joint tackiness agent; Through the effect of this tackiness agent, can under the situation that does not influence sealed strip joint piece outward appearance, increase substantially cohesive strength.
Thermoplastic elastomer joint tackiness agent disclosed by the invention comprises Vilaterm, toluene and trieline, is benchmark with poly weight, and said toluene level is 400-500wt%, and trieline content is 50-100wt%.
Obtain above-mentioned thermoplastic elastomer joint tackiness agent for the ease of those skilled in the art, the present invention also provides the preparation method of this thermoplastic elastomer joint tackiness agent, is included under 60-100 ℃, and Vilaterm, toluene and trieline are mixed, and stirs to get final product.
The method that the above-mentioned thermoplastic elastomer joint of employing provided by the invention tackiness agent carries out joint comprises:
A, above-mentioned thermoplastic elastomer joint tackiness agent is coated on the thermoplastic elastic body sealing strip;
B, thermoplastic elastic body sealing strip is carried out joint handle.
Carry out after joint handles through the thermoplastic elastic body sealing strip after this thermoplastic elastomer joint adhesive treatment; Thermoplastic elastic body sealing strip and joint piece bonding part appearance sharp trace can not occur; Specious, and thermoplastic elastic body sealing strip and joint piece cohesive strength are significantly improved.
[embodiment]
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, below the present invention is further elaborated.
For realizing the object of the invention, thermoplastic elastomer joint tackiness agent disclosed by the invention comprises Vilaterm, toluene and trieline, is benchmark with poly weight, and toluene level is 400-500wt%, and trieline content is 50-100wt%.Under the preferable case, be benchmark with poly weight, toluene level is 450-500wt%, and trieline content is 50-80wt%.
Being used for the agglutinating thermoplastic elastomer is prior art thermoplastic elastomer commonly used, like TPO and TPV etc., in particular for making the used thermoplastic elastomer TPV of sealed strip.
Above-mentioned Vilaterm can adopt Vilaterm commonly used in the prior art, and under the preferable case, the poly weight-average molecular weight that is adopted is preferably 20-40 ten thousand for being not more than 400,000.Simultaneously, for the ease of the preparation of above-mentioned thermoplastic elastomer joint tackiness agent, preferably adopt pulverous Vilaterm, above-mentioned Vilaterm can be commercially available, like 6201 of Exxon-Mobil Corp.'s production.
Above-mentioned toluene and trieline are this area solvent commonly used, can be commercially available, like the chemically pure reagent of Tianjin chemical reagents corporation of BDCom production.
Usually, polythene material is extremely difficult dissolved organism, and the contriver finds through test, and toluene and trieline are used, and can effectively dissolve Vilaterm as mixed solvent.Under the preferable case, toluene and trieline weight ratio are 4-10: 1, further be preferably 4-7: 1.
For ease of using, need be made into liquid thermoplastic elastomer joint tackiness agent.Concrete preparation method is included under 60-100 ℃, and Vilaterm, toluene and trieline are mixed, and stirs.The time of stirring does not have too limitations, usually, stirs 15min and gets final product.
Under the preferable case, the viscosity of thermoplastic elastomer joint tackiness agent under 40 ℃ through method for preparing is 0.8-1.2Pa.s, more preferably 0.9-1.0Pa.s.The viscosity of the thermoplastic elastomer joint tackiness agent for preparing can adopt this area method commonly used to measure, and gets final product as adopting viscometer (the rotational viscosimeter NDJ-1 that Shenzhen three promise instrument companies produce) to record.
The invention also discloses a kind of method that above-mentioned thermoplastic elastomer joint tackiness agent carries out joint of using, comprising:
A, above-mentioned thermoplastic elastomer joint tackiness agent is coated on the thermoplastic elastic body sealing strip;
B, thermoplastic elastic body sealing strip is carried out joint handle.
In actual mechanical process; Can the thermoplastic elastomer joint tackiness agent that prepare be coated on the position that need carry out joint on the thermoplastic elastic body sealing strip; For example the section of thermoplastic elastic body sealing strip carries out joint with thermoplastic elastic body sealing strip and handles.This joint is treated to method commonly used in the prior art, as thermoplastic elastic body sealing strip being positioned in the splicer (the plastic-injection moulding machine TY-400 that Da Yu Mechanology Inc. in Dongguan produces), carries out joint at 20-40 ℃ and handles.Concrete process comprises that the material (promptly identical or close with thermoplastic elastic body sealing strip material material) that will be used to make the joint piece adds splicer and melt extrudes injection moulding; And the thermoplastic elastic body sealing strip that will be coated with thermoplastic elastomer joint tackiness agent is positioned in the splicer, and the joint piece that obtains with moulding just carries out joint to be handled.
Under the preferable case, after said step a, also comprise before the b the thermoplastic elastomer joint tackiness agent dry 10-15min under 30-50 ℃ that is coated on the thermoplastic elastic body sealing strip.That is, when being coated with thermoplastic elastomer joint tackiness agent on the thermoplastic elastic body sealing strip, drying is carried out at the coating position of thermoplastic elastic body sealing strip.
Among the present invention; After thermoplastic elastomer joint tackiness agent is coated on the section of thermoplastic elastic body sealing strip; Owing to contain solvent in the thermoplastic elastomer joint tackiness agent, the toluene molecule that the molecule in this solvent, especially rigidity are stronger can penetrate between the molecular chain in the thermoplastic elastic body sealing strip; Realization has improved little contact area of treating joint area to a certain extent to the swelling of thermoplastic elastic body sealing strip section.And, help the sub polyethylene subchain and get between the molecular chain in the thermoplastic elastic body sealing strip.Because the sub polyethylene subchain does not have side chain; Very regular, and and the main body constituent structure of thermoplastic elastic body sealing strip, especially TPV sealed strip closely similar; The sub polyethylene subchain is very easy to form hydrogen bond with the interior molecular chain of thermoplastic elastic body sealing strip, improves the bonding strength of the two.Thereby after carrying out the joint processing, improve the cohesive strength between joint piece and the thermoplastic elastic body sealing strip.
The contriver finds, as the Vilaterm of thermoplastic elastomer joint binder main body resin, when its weight-average molecular weight is not more than 400,000, in the time of especially in 20-40 ten thousand, more helps improving the cohesive strength between joint piece and the thermoplastic elastic body sealing strip.
Toluene that uses simultaneously as solvent and trieline be polyethylene dissolving effectively, and can play certain activation to thermoplastic elastic body sealing strip or joint piece, plays promoter action for improving cohesive strength.
After adopting thermoplastic elastomer joint adhesive treatment disclosed by the invention; Carrying out joint again handles and can not change the joint area of joint piece or thermoplastic elastic body sealing strip; When the thermoplastic elastic body sealing strip behind the assurance joint is attractive in appearance, increase substantially the cohesive strength of thermoplastic elastic body sealing strip and joint piece.Through embodiment the present invention is further described below.
Embodiment 1
Present embodiment is used to explain thermoplastic elastomer joint tackiness agent disclosed by the invention and preparation method thereof.
Get Vilaterm powder (6201 of Exxon-Mobil Corp.'s production of 100 weight parts; Weight-average molecular weight is 300,000), 420 parts by weight of toluene (Tianjin chemical reagents corporation of BDCom produce CP) and 90 weight part trielines (CP that Tianjin chemical reagents corporation of BDCom produces) place container, stir 15min down at 70 ℃.
Obtain the thermoplastic elastomer joint adhesive A 1 of clear, colorless.
A1 is cooled to 40 ℃, and the viscosity that records A1 through viscometer (the rotational viscosimeter NDJ-1 that Shenzhen three promise instrument companies produce) is 0.92Pa.s.
Embodiment 2
Present embodiment is used to explain thermoplastic elastomer joint tackiness agent disclosed by the invention and preparation method thereof.
Get Vilaterm powder (6201 of Exxon-Mobil Corp.'s production of 100 weight parts; Weight-average molecular weight is 150,000), 460 parts by weight of toluene (Tianjin chemical reagents corporation of BDCom produce CP) and 60 weight part trielines (CP that Tianjin chemical reagents corporation of BDCom produces) place container, stir 15min down at 70 ℃.
Obtain the thermoplastic elastomer joint adhesive A 2 of clear, colorless.
A2 is cooled to 40 ℃, and the viscosity that records A2 through viscometer (the rotational viscosimeter NDJ-1 that Shenzhen three promise instrument companies produce) is 0.86Pa.s.
Embodiment 3
Present embodiment is used to explain thermoplastic elastomer joint tackiness agent disclosed by the invention and preparation method thereof.
Get Vilaterm powder (6201 of Exxon-Mobil Corp.'s production of 100 weight parts; Weight-average molecular weight is 250,000), 480 parts by weight of toluene (Tianjin chemical reagents corporation of BDCom produce CP) and 60 weight part trielines (CP that Tianjin chemical reagents corporation of BDCom produces) place container, stir 15min down at 70 ℃.
Obtain the thermoplastic elastomer joint adhesive A 3 of clear, colorless.
A3 is cooled to 40 ℃, and the viscosity that records A3 through viscometer (the rotational viscosimeter NDJ-1 that Shenzhen three promise instrument companies produce) is 0.90Pa.s.
Embodiment 4
Present embodiment is used to explain thermoplastic elastomer joint tackiness agent disclosed by the invention and preparation method thereof.
Get Vilaterm powder (6201 of Exxon-Mobil Corp.'s production of 100 weight parts; Weight-average molecular weight is 350,000), 410 parts by weight of toluene (Tianjin chemical reagents corporation of BDCom produce CP) and 60 weight part trielines (CP that Tianjin chemical reagents corporation of BDCom produces) place container, stir 15min down at 70 ℃.
Obtain the thermoplastic elastomer joint adhesive A 4 of clear, colorless.
A4 is cooled to 40 ℃, and the viscosity that records A4 through viscometer (the rotational viscosimeter NDJ-1 that Shenzhen three promise instrument companies produce) is 0.98Pa.s.
Embodiment 5
Present embodiment is used to explain jointing method disclosed by the invention.
Heat-obtaining thermoplastic elastic sealed strip (the TPV sealed strip that your enlightening plasthetics ltd produces during Shanghai) applies the prepared thermoplastic elastomer joint adhesive A 1 of embodiment 1 at the thermoplastic elastic body sealing strip section part.
Above-mentioned thermoplastic elastic body sealing strip is placed injection moulding machine (the plastic-injection moulding machine TY-400 that Da Yu Mechanology Inc. in Dongguan produces), after 230 ℃ of butt junction pieces carry out injection moulding, under 30 ℃, carry out joint and handle.
Obtain the thermoplastic elastic body sealing strip S1 behind the joint.
Embodiment 6-8
Present embodiment is used to explain jointing method disclosed by the invention.
Get embodiment 2,3 and 4 prepared thermoplastic elastomer joint adhesive A 2, A3, A4 respectively, carry out joint according to the jointing method of embodiment 5 and handle, obtain thermoplastic elastic body sealing strip S2, S3, S4 behind the corresponding joint.
Embodiment 9
Present embodiment is used to explain jointing method disclosed by the invention.
Get the prepared thermoplastic elastomer joint adhesive A 1 of embodiment 1; Carry out joint according to the jointing method of embodiment 5 and handle, different is, before joint is handled after applying A1; The thermoplastic elastic body sealing strip that is coated with A1 is placed baking oven, dry 12min under 40 ℃.
Obtain the thermoplastic elastic body sealing strip S5 behind the corresponding joint.
Embodiment 10-12
Present embodiment is used to explain jointing method disclosed by the invention.
Get embodiment 2,3 and 4 prepared thermoplastic elastomer joint adhesive A 2, A3 and A4 respectively, carry out joint according to the jointing method of embodiment 9 and handle, obtain thermoplastic elastic body sealing strip S6, S7 and S8 behind the corresponding joint.
Comparative Examples 1
This Comparative Examples is used to explain jointing method of the prior art.
Jointing method according to embodiment 5 carries out the joint processing, and different is uncoated thermoplastic elastomer joint tackiness agent on the thermoplastic elastic body sealing strip.Obtain the thermoplastic elastic body sealing strip D1 behind the joint.
Comparative Examples 2
This Comparative Examples is used to explain thermoplastic elastomer joint tackiness agent of the prior art and jointing method.
Jointing method according to embodiment 5 carries out the joint processing, and different is to adopt polyurethane binder (PU306 that the climing chemical industry of Zibo Hai Te ltd produces) to replace thermoplastic elastomer joint adhesive A 1.Obtain the thermoplastic elastic body sealing strip D2 behind the joint.
Comparative Examples 3
This Comparative Examples is used for comparative illustration thermoplastic elastomer joint disclosed by the invention tackiness agent and jointing method.
Jointing method according to embodiment 5 carries out the joint processing, and different is not contain trieline in the thermoplastic elastomer joint tackiness agent.Obtain the thermoplastic elastic body sealing strip D3 behind the joint.
Performance test
Thermoplastic elastic body sealing strip S1 behind the joint of above-mentioned preparation, S2, S3, S4, S5, S6, S7, S8, D1, D2, D3 are carried out following performance test:
1, pulls apart pulling force
With above-mentioned 11 kinds the thermoplastic elastic body sealing strip of joint all cut out and be every section of 25cm, on electronic universal tension testing machine (GP-TS2000S/10KN that Gaopin Detection Equipment Co., Ltd., Shenzhen produces), pull apart tensile test according to GB/T 528-1998.
2, product appearance
The vestige that whether exists obvious joint to handle is seen in the detect by an unaided eye joint of thermoplastic elastic body sealing strip and joint piece.
Test result is as shown in table 1.
Table 1
Can find out that through above-mentioned test result thermoplastic elastomer joint tackiness agent disclosed by the invention can play tangible raising effect to the strength of joint of thermoplastic elastic body sealing strip.
And,, especially, also very favourable to improving strength of joint to being coated on after thermoplastic elastomer joint tackiness agent on the thermoplastic elastic body sealing strip carries out drying earlier through jointing method disclosed by the invention.In addition, after thermoplastic elastomer joint adhesive joint processing disclosed by the invention, the outward appearance of thermoplastic elastic body sealing strip is not affected.
Claims (8)
1. a thermoplastic elastomer joint tackiness agent comprises Vilaterm, toluene and trieline, is benchmark with poly weight, and said toluene level is 400-500wt%, and trieline content is 50-100wt%.
2. thermoplastic elastomer joint tackiness agent according to claim 1, wherein, the Vilaterm weight-average molecular weight is 20-40 ten thousand.
3. thermoplastic elastomer joint tackiness agent according to claim 1, wherein, said toluene and trieline weight ratio are 4-7: 1.
4. thermoplastic elastomer joint tackiness agent according to claim 1, wherein, the viscosity of said thermoplastic elastomer joint tackiness agent under 40 ℃ is 0.8-1.2Pas.
5. the preparation method of thermoplastic elastomer joint tackiness agent as claimed in claim 1 is included under 60-100 ℃, and Vilaterm, toluene and trieline are mixed, and stirs.
6. jointing method comprises:
A, any described thermoplastic elastomer joint tackiness agent among the claim 1-5 is coated on the thermoplastic elastic body sealing strip;
B, thermoplastic elastic body sealing strip is carried out joint handle.
7. jointing method according to claim 6 wherein, after said step a, also comprises before the b the thermoplastic elastomer joint tackiness agent dry 10-15min under 30-50 ℃ that is coated on the thermoplastic elastic body sealing strip.
8. jointing method according to claim 6, wherein, the joint among the said step b is handled and under 20-40 ℃, is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101071639A CN101875826B (en) | 2009-04-30 | 2009-04-30 | Thermoplastic elastic body joint adhesive, and preparation method and jointing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101071639A CN101875826B (en) | 2009-04-30 | 2009-04-30 | Thermoplastic elastic body joint adhesive, and preparation method and jointing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101875826A CN101875826A (en) | 2010-11-03 |
| CN101875826B true CN101875826B (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101071639A Active CN101875826B (en) | 2009-04-30 | 2009-04-30 | Thermoplastic elastic body joint adhesive, and preparation method and jointing method thereof |
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| CN (1) | CN101875826B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3935134A (en) * | 1973-04-25 | 1976-01-27 | Bayer Aktiengesellschaft | Heat-sealing adhesives |
| CN1754932A (en) * | 2004-09-30 | 2006-04-05 | 赵璐 | Polymer adhesive resin for corrosion-prevention of steel pipe and preparation process thereof |
-
2009
- 2009-04-30 CN CN2009101071639A patent/CN101875826B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3935134A (en) * | 1973-04-25 | 1976-01-27 | Bayer Aktiengesellschaft | Heat-sealing adhesives |
| CN1754932A (en) * | 2004-09-30 | 2006-04-05 | 赵璐 | Polymer adhesive resin for corrosion-prevention of steel pipe and preparation process thereof |
Non-Patent Citations (2)
| Title |
|---|
| JP特开平11-210095A 1999.08.03 |
| 涂春潮等.聚乙烯用胶粘剂研究进展.《中国胶粘剂》.2005,第14卷(第7期),41-45. * |
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| CN101875826A (en) | 2010-11-03 |
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