CN101760002A - High-performance thermoplastic polyurethane elastomer and preparation method thereof - Google Patents
High-performance thermoplastic polyurethane elastomer and preparation method thereof Download PDFInfo
- Publication number
- CN101760002A CN101760002A CN200810207481A CN200810207481A CN101760002A CN 101760002 A CN101760002 A CN 101760002A CN 200810207481 A CN200810207481 A CN 200810207481A CN 200810207481 A CN200810207481 A CN 200810207481A CN 101760002 A CN101760002 A CN 101760002A
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- CN
- China
- Prior art keywords
- polyurethane elastomer
- thermoplastic polyurethane
- performance thermoplastic
- tpu
- epdm
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
Abstract
The invention relates to high-performance thermoplastic polyurethane elastomer and a preparation method thereof. The elastomer is prepared from the following raw materials by weight in the mixture ratio: 40-80% of polyurethane (TPU), 5-50% of EPDM, 5-10% of compatilizer and 0.1-5% of antioxidant. The preparation method of the high-performance thermoplastic polyurethane elastomer comprises the following steps of: weighing the raw materials by weight according to the mixture ratio; and firstly, putting all the raw materials into a high mixing machine, mixing evenly, then putting the evenly mixed raw materials into a screw machine, extruding and granulating. The invention has the characteristics that the prepared polyurethane elastomer composition can have higher mechanical property and can be used for the direct injection molding of a TPU product, and the cost is lower relative to that of the TPU.
Description
Technical field
The present invention relates to technical field of polymer materials, relate in particular to a kind of high-performance thermoplastic polyurethane elastomer and preparation method thereof.
Background technology
Polyurethane elastomer is looked at the parent that its excellent performance is subjected to the user gradually, but polyester type TPU price will exceed much than general thermoplastic elastomer, has limited its application.The present invention carries out blending and modifying by the EPDM with TPU and relative low price, has obtained the higher modified TPU composition of cost performance, has very large market potential.But because TPU and EPDM belong to incompatible system, the prepared composition mechanical property of both blend is relatively poor, and the maleic anhydride graft EPDM that has polar group by adding has improved both consistencies greatly, thereby has obtained the higher material of cost performance.
Summary of the invention
Purpose of the present invention is exactly for a kind of high-performance thermoplastic polyurethane elastomer and preparation method thereof is provided.
Purpose of the present invention can be achieved through the following technical solutions: a kind of high-performance thermoplastic polyurethane elastomer, it is characterized in that, and make by following materials of weight proportions:
Urethane (TPU) 40-80%,
EPDM?5-50％，
Compatilizer 5-10%,
Oxidation inhibitor 0.1-5%.
Described polyurethane elastomer is polyester type TPU, and hardness is 70-95A.
Described EPDM is granular, and its melting index is 0.1-1g/10min
Described compatilizer is maleic anhydride graft EPDM, and its melting index is 5g/10min
Described oxidation inhibitor is that Hinered phenols antioxidant and phosphite ester kind antioxidant are composite, and preferred antioxidant 1010 and oxidation inhibitor 168 are composite.
A kind of preparation method of high-performance thermoplastic polyurethane elastomer is characterized in that, this method comprises following processing step:
(1) weighs raw material by weight ratio: urethane (TPU) 40-80%, EPDM 5-50%, compatilizer 5-10%, oxidation inhibitor 0.1-5%;
(2) all raw materials are put into high-speed mixer and mixing 3-5 minute discharging;
(3) raw materials mixed is put into screw rod machine extruding pelletization, the rotating speed of screw rod machine is 180-600 rev/min, and temperature is 180-200 ℃.
The present invention has improved the consistency of TPU and EPDM greatly by adding maleic anhydride graft EPDM, and prepared blending and modifying material has better cost performance, can directly replace the TPU material on a lot of the application.Compare with TPU, said composition has relatively low cost, and mechanical property is better, can directly be injection molded into product, can be used for instrument, the functional component of instrument, instrument etc.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1～2
Embodiment 1～2 proportioning (weight %) sees Table 1.
Table 1
| Material name | Embodiment 1 | Embodiment 2 |
| ??TPU | ??87.6 | ??80.6 |
| ??EPDM | ??6 | ??12 |
| Compatilizer | ??6 | ??7 |
| ??1010/168(1∶1) | ??0.4 | ??0.4 |
All groups were put into high-speed mixer and mixing 3-5 minute by proportioning, are added extruding pelletization in the twin screw then, processing temperature be respectively 185,190,195,195,195,195,195,, 195,190 ℃, the screw rod revolution is at 300 rev/mins.
A kind of high-performance thermoplastic polyurethane elastomer sample 1 and sample 2 to embodiment 1 and 2 gained carry out the performance test contrast, and mechanical property is tested with ASTM.
Sample 1 and the contrast of sample 2 performances are as table 2.
Table 2
| Test event | Pure TPU | Sample 1 | Sample 2 |
| Tensile strength MPa | ??23.5 | ??36.5 | ??27.3 |
| Elongation at break % | ??＞300 | ??＞300 | ??＞300 |
| 100% stress at definite elongation | ??3.8 | ??4.6 | ??4.1 |
Claims (6)
1. a high-performance thermoplastic polyurethane elastomer is characterized in that, is made by following materials of weight proportions:
Urethane (TPU) 40-80%,
EPDM?5-50％，
Compatilizer 5-10%,
Oxidation inhibitor 0.1-5%.
2. a kind of high-performance thermoplastic polyurethane elastomer according to claim 1 is characterized in that, described polyurethane elastomer is polyester type TPU, and hardness is 70-95A.
3. a kind of high-performance thermoplastic polyurethane elastomer according to claim 1 is characterized in that, described EPDM is granular, and its melting index is 0.1-1g/10min
4. a kind of high-performance thermoplastic polyurethane elastomer according to claim 1 is characterized in that, described compatilizer is maleic anhydride graft EPDM, and its melting index is 5g/10min
5. a kind of high-performance thermoplastic polyurethane elastomer according to claim 1 is characterized in that, described oxidation inhibitor is that Hinered phenols antioxidant and phosphite ester kind antioxidant are composite, and preferred antioxidant 1010 and oxidation inhibitor 168 are composite.
6. preparation method of high-performance thermoplastic polyurethane elastomer according to claim 1 is characterized in that this method comprises following processing step:
(1) weighs raw material by weight ratio: urethane (TPU) 40-80%, EPDM 5-50%, compatilizer 5-10%, oxidation inhibitor 0.1-5%;
(2) all raw materials are put into high-speed mixer and mixing 3-5 minute discharging;
(3) raw materials mixed is put into screw rod machine extruding pelletization, the rotating speed of screw rod machine is 180-600 rev/min, and temperature is 180-200 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810207481A CN101760002A (en) | 2008-12-19 | 2008-12-19 | High-performance thermoplastic polyurethane elastomer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810207481A CN101760002A (en) | 2008-12-19 | 2008-12-19 | High-performance thermoplastic polyurethane elastomer and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101760002A true CN101760002A (en) | 2010-06-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810207481A Pending CN101760002A (en) | 2008-12-19 | 2008-12-19 | High-performance thermoplastic polyurethane elastomer and preparation method thereof |
Country Status (1)
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| CN (1) | CN101760002A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103450662A (en) * | 2013-08-16 | 2013-12-18 | 烟台开发区新龙华包装材料有限公司 | Matte thermoplastic polyurethane elastomer and preparation method thereof |
| CN104448191A (en) * | 2014-11-10 | 2015-03-25 | 浙江品诺新材料有限公司 | Abrasion-resistant and ageing-resistant polyurethane guide roller and preparation method thereof |
| CN105778471A (en) * | 2016-04-19 | 2016-07-20 | 滁州环球聚氨酯科技有限公司 | High-strength, high-toughness and flame-retardant polyurethane outer sheath of cable for oil industry |
| GB2541914A (en) * | 2015-09-03 | 2017-03-08 | Addivant Switzerland Gmbh | Composition |
| CN107787342A (en) * | 2015-04-27 | 2018-03-09 | 密执安州立大学董事会 | Durability dredges ice surface |
| CN108276759A (en) * | 2018-02-22 | 2018-07-13 | 安踏（中国）有限公司 | A kind of one-pass molding clothes and its production method |
| CN110204886A (en) * | 2019-06-05 | 2019-09-06 | 娜菲鼎新(广东)科技有限公司 | A kind of cast elastomeric film and preparation method thereof |
-
2008
- 2008-12-19 CN CN200810207481A patent/CN101760002A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103450662A (en) * | 2013-08-16 | 2013-12-18 | 烟台开发区新龙华包装材料有限公司 | Matte thermoplastic polyurethane elastomer and preparation method thereof |
| CN103450662B (en) * | 2013-08-16 | 2015-12-23 | 烟台开发区新龙华包装材料有限公司 | A kind of Matte thermoplastic polyurethane elastomer and preparation method thereof |
| CN104448191A (en) * | 2014-11-10 | 2015-03-25 | 浙江品诺新材料有限公司 | Abrasion-resistant and ageing-resistant polyurethane guide roller and preparation method thereof |
| CN107787342A (en) * | 2015-04-27 | 2018-03-09 | 密执安州立大学董事会 | Durability dredges ice surface |
| GB2541914A (en) * | 2015-09-03 | 2017-03-08 | Addivant Switzerland Gmbh | Composition |
| CN105778471A (en) * | 2016-04-19 | 2016-07-20 | 滁州环球聚氨酯科技有限公司 | High-strength, high-toughness and flame-retardant polyurethane outer sheath of cable for oil industry |
| CN108276759A (en) * | 2018-02-22 | 2018-07-13 | 安踏（中国）有限公司 | A kind of one-pass molding clothes and its production method |
| CN110204886A (en) * | 2019-06-05 | 2019-09-06 | 娜菲鼎新(广东)科技有限公司 | A kind of cast elastomeric film and preparation method thereof |
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Open date: 20100630 |