CN103059248B - Preparation method for TPU adhesive tapes used for fixing apparatus - Google Patents
Preparation method for TPU adhesive tapes used for fixing apparatus Download PDFInfo
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- CN103059248B CN103059248B CN201210580263.5A CN201210580263A CN103059248B CN 103059248 B CN103059248 B CN 103059248B CN 201210580263 A CN201210580263 A CN 201210580263A CN 103059248 B CN103059248 B CN 103059248B
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- preparation
- adhesive tape
- tpu adhesive
- stationary installation
- polyester polyol
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Abstract
The present invention discloses a preparation method for TPU adhesive tapes used for a fixing apparatus, and the method comprises the following steps: blending polyester prepolymer, polyester polyols, a chain extender, and a catalyst in the pouring head of a casting machine according to a certain proportion, injecting into a child and mother mold sprayed with a silicone oil-type mold release agent, closing the mold when the raw materials is gel-like, demolding for molding in about 20 to 25 minutes, and then curing in an oven to obtain a finished product. The finished product is suitable for the fixing apparatus and the shape and color of the finished products are can be adjusted as needed. According to the present invention, TPU adhesive tapes are prepared in a way of prepolymer, so shortcomings in conventional adhesive tapes are overcome, and the TPU adhesive tapes have better physical properties than conventional adhesive tapes. A comparison of physical properties the two tapes is as follows.
Description
Technical field
The present invention relates to a kind of preparation method of the TPU adhesive tape for stationary installation.
Background technology
Be conventionally used to stationary installation there is intensity difference in rubber adhesive tape, elongation is low, weathering resistance is poor and have the problem of peculiar smell.The polyurethane elastomer product prepared by polyester prepolymer has good wear resistance, oil-proofness, and mechanical property is excellent, can add colorant adjustment color.
Summary of the invention
Technical problem to be solved by this invention is the preparation method providing a kind of TPU adhesive tape for stationary installation for the problem existing for the rubber adhesive tape being conventionally used to stationary installation.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
For the preparation method of the TPU adhesive tape of stationary installation, the steps include:
(1), mould material preparation
Polyester prepolymer, polyester polyol, chainextender, catalyzer are mixed by a certain percentage and makes mould material by casting molding machine, mass ratio between wherein said polyester prepolymer, polyester polyol, chainextender is 100: 80 ~ 40: 4.9 ~ 7.1, and catalyzer is 0.2 ~ 0.4% of chainextender quality;
(2), cast is with shaping: by casting molding machine, mould material being poured into mould temperature is in the mould of 100 DEG C, and matched moulds aftershaping is after 20-25 minute, die sinking taking-up goods;
(3), goods post curing: goods prepared by step (2) are put into baking oven post curing, and wherein post curing temperature is 100 ~ 120 DEG C, and the time is 10 ~ 15 minutes.
Described polyester prepolymer is prepared from by polyester polyol and isocyanic ester; preparation process is as follows: by polyester polyol vacuum hydro-extraction under 100-120 DEG C of condition; cool to less than 50 DEG C; quantitatively slowly evenly join and to have measured and in the isocyanic ester melted (in guarantee system, NCO:OH mol ratio is 10:1); 2-3 hour is reacted under 80 DEG C of nitrogen protection conditions; test its viscosity; when arriving design viscosity 1500-3000mPas; when sampling analysis NCO content is to design load 13-15%; stopped reaction, sealing is preserved.
Described polyester polyol is obtained through polycondensation by di-carboxylic acid and polyhydroxy-alcohol, and its number-average molecular weight is 500-4000.
Described di-carboxylic acid takes from one or both mixtures in pentanedioic acid, the acid of brave amber, hexanodioic acid, suberic acid and sebacic acid; Described polyhydroxy-alcohol takes from glycol ether, ethylene glycol, BDO, 1,5-PD, 1,6-hexylene glycol, decamethylene-glycol, 2,2-methyl isophthalic acids, one or both mixtures in ammediol.
Described isocyanic ester be selected from tolylene diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, to one or more mixture in phenyl diisocyanate, hexamethylene diisocyanate, 4,4-diphenylmethanediisocyanates.
Described chainextender is selected from a kind of or mixture of two kinds of BDO, ethylene glycol, 1,6-hexylene glycol, diglycol ethylene, glycerine, TriMethylolPropane(TMP), tetramethylolmethane.
Described catalyzer is tertiary amine-type catalyzer.Described tertiary amine-type catalyzer is selected from triethylenediamine, dimethylcyclohexylamine, five methyl diethylentriamine, Tetramethyl Ethylene Diamine, dimethylethanolamine, trimethyl hydroxyethylammonium propylene diamine, N-(dimethylaminopropyl) a kind of or mixture of two kinds of diisopropanolamine (DIPA).
Described mould is primary-secondary module.
The glue amount of telling of described casting molding machine is 2 ~ 10mg/min.
Silicone oil type releasing agent is sprayed with in described mould.
The mode of the present invention's performed polymer prepares the shortcoming that TPU adhesive tape overcomes traditional adhesive tape, and physical property is better than traditional adhesive tape.The invention has the beneficial effects as follows: the TPU adhesive tape of preparation: hardness (Shao A) 70 ~ 75, tensile strength 2.3 ~ 2.6MPa, elongation at break 200 ~ 210/%, elongation at yield point 200 ~ 208%.Examination criteria: ISO371
Embodiment
Specific embodiment of the invention scheme is described below in detail.
Embodiment 1
(1), the preparation of polyester polyol
Hexanodioic acid and the polycondensation of 1,6-hexylene glycol form, and number-average molecular weight 2000 ± 100, concrete preparation technology is well known to those skilled in the art, and does not repeat at this.This polyester polyol can from market purchasing.
(2) preparation of polyester prepolymer
By polyester polyol vacuum hydro-extraction under 100-120 DEG C of condition of step (1); cool to less than 50 DEG C; quantitatively slowly evenly join and to have measured and melt 4; 4-diphenylmethanediisocyanate (in guarantee system, NCO:OH mol ratio is 10:1), reacts 2-3 hour, tests its viscosity under 80 DEG C of nitrogen protection conditions; when arriving design viscosity 1957mPas; when sampling analysis NCO content is 14.62%, stopped reaction, sealing is preserved.
(3) mould material preparation
Polyester prepolymer prepared by step (2), the polyester polyol, 1 of step (1), 4 butyleneglycols, triethylenediamine mix by a certain percentage makes mould material by casting molding machine, wherein step (2) prepare polyester prepolymer, step (1) polyester polyol, 1, mass ratio between 4 butyleneglycols is 100: 80: 4.9, triethylenediamine is 0.2% of Isosorbide-5-Nitrae butyleneglycol quality; The glue amount of telling of casting molding machine is 4mg/min;
(4) cast is with shaping: by casting molding machine, mould material being poured into mould temperature is in the primary-secondary module of 100 DEG C, and matched moulds aftershaping is after 20 minutes, and goods are taken out in die sinking;
(5) goods post curing: goods prepared by step (4) are put into baking oven post curing, wherein post curing temperature is 100 DEG C, and the time is 15 minutes.
The TPU adhesive tape of preparation: hardness (Shao A) 70, tensile strength 2.3MPa, elongation at break 200%, elongation at yield point 200%.
Embodiment 2
(1), the preparation of polyester polyol
Suberic acid and BDO polycondensation form, number-average molecular weight 2000 ± 100, and concrete preparation technology is well known to those skilled in the art, and does not repeat at this.This polyester polyol can from market purchasing.
(2) preparation of polyester prepolymer
By polyester polyol vacuum hydro-extraction under 100-120 DEG C of condition of step (1); cool to less than 50 DEG C; quantitatively slowly evenly join measured and melt by 4; 4-diphenylmethanediisocyanate and hexamethylene diisocyanate are with (in guarantee system, NCO:OH mol ratio is for 10:1) in the mixture of mol ratio 2.5:1; 2-3 hour is reacted under 80 DEG C of nitrogen protection conditions; test its viscosity; when arriving design viscosity 2075mPas; during sampling analysis NCO content to 13.67%; stopped reaction, sealing is preserved.
(3), mould material preparation
Polyester prepolymer, polyester polyol, ethylene glycol, dimethylcyclohexylamine are mixed by a certain percentage and makes mould material by casting molding machine, mass ratio between wherein said polyester prepolymer, polyester polyol, ethylene glycol is 100: 40: 7.1, and dimethylcyclohexylamine is 0.4% of quality of glycol; The glue amount of telling of casting molding machine is 6mg/min;
(2) cast is with shaping: by casting molding machine, mould material being poured into mould temperature is in the mould of 100 DEG C, and matched moulds aftershaping is after 23 minutes, and goods are taken out in die sinking;
(3) goods post curing: goods prepared by step (2) are put into baking oven post curing, wherein post curing temperature is 110 DEG C, and the time is 12 minutes.
The TPU adhesive tape of preparation: hardness (Shao A) 72, tensile strength 2.6MPa, elongation at break 210%, elongation at yield point 208%
Embodiment 3
(1), the preparation of polyester polyol
Hexanodioic acid and BDO polycondensation, number-average molecular weight 2000 ± 100, concrete preparation technology is well known to those skilled in the art, and does not repeat at this.This polyester polyol can from market purchasing.
(2) preparation of polyester prepolymer
By polyester polyol vacuum hydro-extraction under 100-120 DEG C of condition; cool to less than 50 DEG C (there is no left and right); quantitatively slowly evenly join measured and melt by phenyl diisocyanate and isophorone diisocyanate with (in guarantee system, NCO:OH mol ratio is for 10:1) in the mixture of mol ratio 3:1; 2-3 hour is reacted under 80 DEG C of nitrogen protection conditions; test its viscosity; when arriving design viscosity 2034mPas; during sampling analysis NCO content to 14.39%; stopped reaction, sealing is preserved.
(3) mould material preparation
By polyester prepolymer, polyester polyol, 1,6-hexylene glycol, five methyl diethylentriamine mix by a certain percentage makes mould material by casting molding machine, wherein polyester prepolymer, polyester polyol, 1, mass ratio between 6-hexylene glycol is 100: 80: 4.9, five methyl diethylentriamine is 0.2% of 1,6-hexylene glycol quality; The glue amount of telling of casting molding machine is 8mg/min;
(4) cast is with shaping: by casting molding machine, mould material being poured into mould temperature is in the primary-secondary module of 100 DEG C, and matched moulds aftershaping is after 25 minutes, and goods are taken out in die sinking;
(5) goods post curing: goods prepared by step (4) are put into baking oven post curing, wherein post curing temperature is 100 DEG C, and the time is 15 minutes.
The TPU adhesive tape of preparation: hardness (Shao A) 75, tensile strength 2.5MPa, elongation at break 205/%, elongation at yield point 204%.
The comparing result of TPU adhesive tape prepared by above-described embodiment and traditional adhesive tape is in table 1
Table 1
Examination criteria: ISO371.
Claims (10)
1. for a preparation method for the TPU adhesive tape of stationary installation, it is characterized in that, preparation process is:
(1), polyester prepolymer, polyester polyol, chainextender, catalyzer to mix and make mould material by casting molding machine by mould material preparation by a certain percentage, mass ratio between wherein said polyester prepolymer, polyester polyol, chainextender is 100: 80 ~ 40: 4.9 ~ 7.1, and catalyzer is 0.2 ~ 0.4% of chainextender quality;
(2), cast is with shaping: mould material being poured into mould temperature is in the mould of 100 DEG C, and matched moulds aftershaping is after 20-25 minute, die sinking taking-up goods;
(3), goods post curing: goods prepared by step (2) are put into baking oven post curing, and wherein post curing temperature is 100 ~ 120 DEG C, and the time is 10 ~ 15 minutes;
Described polyester prepolymer is prepared from by polyester polyol and isocyanic ester; preparation process is as follows: by polyester polyol vacuum hydro-extraction under 100-120 DEG C of condition; cool to less than 50 DEG C; quantitatively slowly evenly join measured and in the isocyanic ester melted also in guarantee system NCO:OH mol ratio be 10:1; 2-3 hour is reacted under 80 DEG C of nitrogen protection conditions; test its viscosity; when arriving design viscosity 1500-3000mPas; when sampling analysis NCO content is to design load 13-15%; stopped reaction, sealing is preserved.
2., as claimed in claim 1 for the preparation method of the TPU adhesive tape of stationary installation, it is characterized in that, described polyester polyol is obtained through polycondensation by di-carboxylic acid and polyhydroxy-alcohol, and its number-average molecular weight is 500-4000.
3., as claimed in claim 2 for the preparation method of the TPU adhesive tape of stationary installation, it is characterized in that, described di-carboxylic acid takes from one or both mixtures in pentanedioic acid, the acid of brave amber, hexanodioic acid, suberic acid and sebacic acid; Described polyhydroxy-alcohol takes from glycol ether, ethylene glycol, BDO, 1,5-PD, 1,6-hexylene glycol, decamethylene-glycol, 2,2-methyl isophthalic acids, one or both mixtures in ammediol.
4. as claimed in claim 2 for the preparation method of the TPU adhesive tape of stationary installation, it is characterized in that, described isocyanic ester be selected from tolylene diisocyanate, isophorone diisocyanate, to one or more mixture in phenyl diisocyanate, hexamethylene diisocyanate, 4,4-diphenylmethanediisocyanates.
5. as claimed in claim 1 for the preparation method of the TPU adhesive tape of stationary installation, it is characterized in that, described chainextender is selected from a kind of or mixture of two kinds of BDO, ethylene glycol, 1,6-hexylene glycol, diglycol ethylene, glycerine, TriMethylolPropane(TMP), tetramethylolmethane.
6., as claimed in claim 1 for the preparation method of the TPU adhesive tape of stationary installation, it is characterized in that, catalyzer is tertiary amine-type catalyzer.
7. as claimed in claim 6 for the preparation method of the TPU adhesive tape of stationary installation, it is characterized in that, described tertiary amine-type catalyzer is selected from a kind of or mixture of two kinds of triethylenediamine, dimethylcyclohexylamine, five methyl diethylentriamine, Tetramethyl Ethylene Diamine, dimethylethanolamine, trimethyl hydroxyethylammonium propylene diamine, N-(dimethylaminopropyl) diisopropanolamine (DIPA).
8., as claimed in claim 1 for the preparation method of the TPU adhesive tape of stationary installation, it is characterized in that, described mould is primary-secondary module.
9., as claimed in claim 1 for the preparation method of the TPU adhesive tape of stationary installation, it is characterized in that, the glue amount of telling of described casting molding machine is 2 ~ 10kg/min.
10., as claimed in claim 1 for the preparation method of the TPU adhesive tape of stationary installation, it is characterized in that, in described mould, be sprayed with silicone oil type releasing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210580263.5A CN103059248B (en) | 2012-12-27 | 2012-12-27 | Preparation method for TPU adhesive tapes used for fixing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210580263.5A CN103059248B (en) | 2012-12-27 | 2012-12-27 | Preparation method for TPU adhesive tapes used for fixing apparatus |
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| CN103059248A CN103059248A (en) | 2013-04-24 |
| CN103059248B true CN103059248B (en) | 2015-04-15 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1160723A (en) * | 1996-09-18 | 1997-10-01 | 许广宇 | Elastic polyurethane engineering material |
| CN101503500A (en) * | 2008-12-01 | 2009-08-12 | 无锡双象化学工业有限公司 | Resin for polyester type shoes |
| CN102115588A (en) * | 2009-12-31 | 2011-07-06 | 浙江华峰新材料股份有限公司 | Polyurethane microporous elastomer with characteristics of rubber and preparation method thereof |
| CN102181037A (en) * | 2011-03-27 | 2011-09-14 | 黎明化工研究院 | Method for preparing 3,3'-dimethyl-4,4'-biphenyl diisocyanate (TODI)-based thermoplastic polyurethane elastomer |
| CN102212180A (en) * | 2011-04-29 | 2011-10-12 | 黎明化工研究院 | Microcellular polyurethane elastomer and preparation method thereof |
-
2012
- 2012-12-27 CN CN201210580263.5A patent/CN103059248B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1160723A (en) * | 1996-09-18 | 1997-10-01 | 许广宇 | Elastic polyurethane engineering material |
| CN101503500A (en) * | 2008-12-01 | 2009-08-12 | 无锡双象化学工业有限公司 | Resin for polyester type shoes |
| CN102115588A (en) * | 2009-12-31 | 2011-07-06 | 浙江华峰新材料股份有限公司 | Polyurethane microporous elastomer with characteristics of rubber and preparation method thereof |
| CN102181037A (en) * | 2011-03-27 | 2011-09-14 | 黎明化工研究院 | Method for preparing 3,3'-dimethyl-4,4'-biphenyl diisocyanate (TODI)-based thermoplastic polyurethane elastomer |
| CN102212180A (en) * | 2011-04-29 | 2011-10-12 | 黎明化工研究院 | Microcellular polyurethane elastomer and preparation method thereof |
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