CN101787173A - Thermoplastic elastomer material and preparation method thereof - Google Patents
Thermoplastic elastomer material and preparation method thereof Download PDFInfo
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- CN101787173A CN101787173A CN200910198474A CN200910198474A CN101787173A CN 101787173 A CN101787173 A CN 101787173A CN 200910198474 A CN200910198474 A CN 200910198474A CN 200910198474 A CN200910198474 A CN 200910198474A CN 101787173 A CN101787173 A CN 101787173A
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Abstract
The invention relates to a thermoplastic elastomer material and a preparation method thereof. The thermoplastic elastomer material is prepared from the following ingredients in percentage by weight:15 to 35 percent of SEBS, 18 to 45 percent of plasticizers, 20 to 30 percent of TPU, 5 to 10 percent of compatilizers, 0.2 to 0.5 percent of chemical inhibitors and 5 to 10 percent of inorganic mineral. The preparation method comprises the following steps: weighing and taking ingredients according to the mixture ratio; firstly mixing the SEBS and the plasticizers for three minutes in a high mixing machine; adding other ingredients to be uniformly mixed; taking out the mixture; and then, putting the mixture into a twin-screw machine for extrusion pelleting, wherein the host machine rotating speed of screws is between 200 and 350 r/min, and the processing temperature is between 180 and 220 DEG C. Compared with the prior art, the invention has the advantages that the polarity of the SEBS is changed, so the surfaces of elastomers, AS, PETG and the like take the chemical reaction, the mutual adhesion effect is reached, in addition, the obtained elastomer belongs to an environment protection material with comfortable touch feeling and with innoxious and non-harmful effect on human bodies and environment.
Description
Technical field
The present invention relates to a kind of thermoplastic elastic material and preparation method, refer more particularly to a kind of can be in quadric injection mould bonding ASA, the thermoplastic elastic material of plastics such as PETG, can be used for the various exercise and fitness equipments of quadric injection mould moulding, the personal-care supplies handle, electronic apparatus button, and toy product belong to the thermoplastic elastic material technical field.
Background technology
ASA, plastics such as PETG have good processibility, the transparency, characteristics such as chemical-resistant are widely used in various exercise and fitness equipments, personal care handle (as toothbrush, razor), the electronic apparatus button, and in the toy product.
But be comfort level and the gripability that improves handle and toy, often adopt on its surface and coat one deck rubber, and traditional rubber be bonding incessantly, comes off easily.
Summary of the invention
But purpose of the present invention is exactly to provide bonding ASA in a kind of quadric injection mould for the defective that overcomes above-mentioned prior art existence, the thermoplastic elastic material of plastics such as PETG, it is comfortable to have sense of touch, but with gripability, especially the stability that guarantees both material adhesives is not easy to come off, thermoplastic elastic material of convenient and simple processibility and preparation method thereof.
Purpose of the present invention can be achieved through the following technical solutions: a kind of thermoplastic elastic material is characterized in that this material comprises following component and weight percent:
Styrene-ethylene-butylene-styrene segmented copolymer 15-35%;
Softening agent 18-45%;
Thermoplastic polyurethane 20-30%;
Compatilizer 5-10%;
Oxidation inhibitor 0.2-0.5%;
Inorganic mineral 4.8-10%.
The number-average molecular weight of described styrene-ethylene-butylene-styrene segmented copolymer is 10～300,000.
Described softening agent is a naphthenic oil.
Described compatilizer is the commercially available compatilizer that contains hydrogenant styrene block copolymer (HSBC) and thermoplastic polyurethane (TPU).
Described oxidation inhibitor is Hinered phenols antioxidant.
Described oxidation inhibitor comprises antioxidant 1010, oxidation inhibitor 168, antioxidant 1076.
Described inorganic mineral comprises talcum powder, lime carbonate or barium sulfate.
A kind of preparation method of thermoplastic elastic material is characterized in that, this method may further comprise the steps:
(1) takes by weighing raw material by weight percentage: styrene-ethylene-butylene-styrene segmented copolymer 15-35%; Softening agent 18-45%; Thermoplastic polyurethane 20-30%; Compatilizer 5-10%; Oxidation inhibitor 0.2-0.5%; Inorganic mineral 4.8-10%;
(2) styrene-ethylene-butylene-styrene segmented copolymer and softening agent were mixed 2-5 minute high mixer rotating speed 400-600r/min earlier at high mixer;
(3) add other raw material again and be mixed evenly, take out;
(4) put into the twin-screw machine extruding pelletization then, the engine speed of screw rod is 200-350 rev/min, and processing temperature is 180-220 ℃.
Compared with prior art, advantage of the present invention is the polarity that has changed SEBS, makes elastomerics and AS, surface such as PETG produces chemical reaction, reach mutually bonding effect, and the elastomerics that obtains is that a kind of sense of touch is comfortable, to human body and the nontoxic environment-friendly materials of environment.
Styrene-ethylene-butylene-styrene segmented copolymer in the raw material that the present invention adopts, promptly SEBS is the abbreviation of Styrene-ethylene-butylene-styrene block copolymer, molecular weight is 10-30 ten thousand; SEBS utilizes the hydrogenation mode with the aliphatic double bonds saturation.Because the carbon-to-carbon double bond of divinyl section is hydrogenated saturatedly among the SEBS, thereby it has good weathering resistance, thermotolerance, compression deformability and excellent mechanical property:
Saturation type thermoplastic elastomer SEBS is the alkene architecture of saturation type owing to soft section, and the SEBS thermoplastic elastomer is a kind of novel high polymer material between rubber and resin, not only can replace rubber.SEBS have and traditional rubber phase with elasticity, recovery, obdurability and weathering resistance, and the characteristic of the equally easy machine-shaping of thermoplastics and can reclaim advantage such as use again.And it and ASA, PETG has consistency preferably
Softening agent is a naphthenic oil, be a kind of to saturated cyclic carbon-chain structure hydro carbons, its principal character is that one or more saturated cyclic carbochains are arranged in the molecule, and carbochain in the form of a ring, undersaturated double bond structure is arranged between carbon and the carbon, and this double bond structure just has been doomed its chemical activity.Can improve the soft durometer of material in the adding system.
Urethane is mainly formed with the polyvalent alcohol addition polymerization by polyisocyanates (wherein two isocyanic acids are more by using), and it has high adhesivity.Owing to contain polarity and various groups such as active carbamate and isocyanic ester in the xanthan molecule chain, add that thermoplastic polyurethane improves the rebound resilience of system and the cementability during with the plastics quadric injection mould.
Compatilizer is the polymkeric substance that hydrogenant styrene block copolymer (HSBC) and thermoplastic polyurethane (TPU) are formed; Can improve the consistency of SEBS and TPU, and the cementability when improving material and plastics quadric injection mould;
Hinered phenols is a traditional chain termination type oxidation inhibitor, can prevent or hinder the compound of slow organic materials oxidation.It can be caught active radical and generate inactive radical, thereby chain reaction is stopped; The polymkeric substance hydroperoxide that produce in perhaps can the decomposing oxidation process generate stable nonactive product, thereby interrupt chain reaction.Effect is to delay the oxidising process of macromolecular material, guarantees that they can successfully be processed and prolong its work-ing life.
The inorganic superfine powder end can strengthening material paradigmatic structure, improve its quality and durable degree greatly, and reduce product cost.
It is matrix that the present invention adopts SEBS rubber, make a kind of can be at the bonding ASA of quadric injection mould, the modification TPE material of plastics such as PETG.
Embodiment
The present invention is further detailed explanation below in conjunction with specific embodiment.
Embodiment 1-2
Wherein SEBS is the Kraton G 1651 that Polymer Company is risen by section, and naphthenic oil is the KNH4006 of Kelamayi, Xinjiang petrochemical industry, and TPU is the S85A of BASF AG, and melting index is that (230 ℃ of * 2.16kg, compatilizer are the TU-3257 of Japanese Kuraray to 12g/10min; Oxidation inhibitor is the Irganox 1010 of Ciba.
Production method is as follows:
(1) takes by weighing raw material by deal proportioning in the above table;
(2) SEBS and softening agent were mixed 3 minutes high mixer rotating speed 500r/min earlier at high mixer
(3) add other raw material again and be mixed evenly, take out;
(4) put into the twin-screw machine extruding pelletization then, the engine speed of screw rod is 200-350 rev/min, and processing temperature is 180-220 ℃.
Embodiment 3
A kind of thermoplastic elastic material, for very, this material comprises following component and weight percent in the material gross weight:
35% number-average molecular weight is 100,000 SEBS; 18% commercially available naphthenic oil; 28% commercially available thermoplastic polyurethane; 8.5% the commercially available compatilizer that contains the polymkeric substance that hydrogenant styrene block copolymer (HSBC) and thermoplastic polyurethane (TPU) formed; 0.5% oxidation inhibitor 168; 10% talcum powder.
Take by weighing raw material by above-mentioned weight percent, SEBS and naphthenic oil were mixed 2 minutes high mixer rotating speed 400r/min earlier at high mixer; Add other raw material again and be mixed evenly, take out; Put into the twin-screw machine extruding pelletization then and promptly get product, the engine speed of screw rod is 200 rev/mins, and processing temperature is 180 ℃.
Embodiment 4
A kind of thermoplastic elastic material, for very, this material comprises following component and weight percent in the material gross weight:
24.7% number-average molecular weight is 300,000 SEBS; 45% commercially available naphthenic oil; 20% commercially available thermoplastic polyurethane; 5% the commercially available compatilizer that contains the polymkeric substance that hydrogenant styrene block copolymer (HSBC) and thermoplastic polyurethane (TPU) formed; 0.3% oxidation inhibitor 168; 5% talcum powder.
Take by weighing raw material by above-mentioned weight percent, SEBS and naphthenic oil were mixed 5 minutes high mixer rotating speed 600r/min earlier at high mixer; Add other raw material again and be mixed evenly, take out; Put into the twin-screw machine extruding pelletization then and promptly get product, the engine speed of screw rod is 350 rev/mins, and processing temperature is 220 ℃.
Embodiment 5
A kind of thermoplastic elastic material, for very, this material comprises following component and weight percent in the material gross weight:
30% number-average molecular weight is 200,000 SEBS; 25% commercially available naphthenic oil; 30% commercially available thermoplastic polyurethane; 6.6% the commercially available compatilizer that contains the polymkeric substance that hydrogenant styrene block copolymer (HSBC) and thermoplastic polyurethane (TPU) formed; 0.4% oxidation inhibitor 168; 8% talcum powder.
Take by weighing raw material by above-mentioned weight percent, SEBS and naphthenic oil were mixed 4 minutes high mixer rotating speed 500r/min earlier at high mixer; Add other raw material again and be mixed evenly, take out; Put into the twin-screw machine extruding pelletization then and promptly get product, the engine speed of screw rod is 250 rev/mins, and processing temperature is 200 ℃.
Claims (8)
1. a thermoplastic elastic material is characterized in that, this material comprises following component and weight percent:
Styrene-ethylene-butylene-styrene segmented copolymer 15-35%;
Softening agent 18-45%;
Thermoplastic polyurethane 20-30%;
Compatilizer 5-10%;
Oxidation inhibitor 0.2-0.5%;
Inorganic mineral 4.8-10%.
2. a kind of thermoplastic elastic material according to claim 1 is characterized in that, the number-average molecular weight of described styrene-ethylene-butylene-styrene segmented copolymer is 10～300,000.
3. a kind of thermoplastic elastic material according to claim 1 is characterized in that, described softening agent is a naphthenic oil.
4. a kind of thermoplastic elastic material according to claim 1 is characterized in that, described compatilizer is the commercially available compatilizer that contains hydrogenant styrene block copolymer (HSBC) and thermoplastic polyurethane (TPU).
5. a kind of thermoplastic elastic material according to claim 1 is characterized in that, described oxidation inhibitor is Hinered phenols antioxidant.
6. a kind of thermoplastic elastic material according to claim 5 is characterized in that, described oxidation inhibitor comprises antioxidant 1010, oxidation inhibitor 168, antioxidant 1076.
7. a kind of thermoplastic elastic material according to claim 1 is characterized in that described inorganic mineral comprises talcum powder, lime carbonate or barium sulfate.
8. the preparation method of a thermoplastic elastic material as claimed in claim 1 is characterized in that, this method may further comprise the steps:
(1) takes by weighing raw material by weight percentage: styrene-ethylene-butylene-styrene segmented copolymer 15-35%; Softening agent 18-45%; Thermoplastic polyurethane 20-30%; Compatilizer 5-10%; Oxidation inhibitor 0.2-0.5%; Inorganic mineral 4.8-10%;
(2) styrene-ethylene-butylene-styrene segmented copolymer and softening agent were mixed 2-5 minute high mixer rotating speed 400-600r/min earlier at high mixer;
(3) add other raw material again and be mixed evenly, take out;
(4) put into the twin-screw machine extruding pelletization then, the engine speed of screw rod is 200-350 rev/min, and processing temperature is 180-220 ℃.
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| CN200910198474A CN101787173A (en) | 2009-11-09 | 2009-11-09 | Thermoplastic elastomer material and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199343A (en) * | 2011-01-27 | 2011-09-28 | 上海锦湖日丽塑料有限公司 | Dumb thermoplastic polyurethane elastomer composition and preparation method thereof |
| CN102516747A (en) * | 2011-12-09 | 2012-06-27 | 上海锦湖日丽塑料有限公司 | Thermoplastic elastomer composition of encapsulation PETG (poly(ethylene terephthalate) glycol) and preparation method thereof |
| CN104774433A (en) * | 2015-04-14 | 2015-07-15 | 江苏绿艳高分子材料有限公司 | TUP large sole and preparation method thereof |
| CN105367984A (en) * | 2015-11-18 | 2016-03-02 | 安徽雄亚塑胶科技有限公司 | TPE pulling force strap material and preparation method thereof |
| CN105542433A (en) * | 2016-01-05 | 2016-05-04 | 安徽一招百势训练器材研究开发有限公司 | Inner filling material for human-shaped training device for body building |
| CN107099153A (en) * | 2017-05-03 | 2017-08-29 | 东莞市毅锦实业有限公司 | A kind of TPE composites for coating and bonding PET |
| CN107163552A (en) * | 2017-06-30 | 2017-09-15 | 宁波格林美孚新材料科技有限公司 | A kind of method that secondary granulation strengthens TPUE |
-
2009
- 2009-11-09 CN CN200910198474A patent/CN101787173A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199343A (en) * | 2011-01-27 | 2011-09-28 | 上海锦湖日丽塑料有限公司 | Dumb thermoplastic polyurethane elastomer composition and preparation method thereof |
| CN102199343B (en) * | 2011-01-27 | 2013-06-12 | 上海锦湖日丽塑料有限公司 | Dumb thermoplastic polyurethane elastomer composition and preparation method thereof |
| CN102516747A (en) * | 2011-12-09 | 2012-06-27 | 上海锦湖日丽塑料有限公司 | Thermoplastic elastomer composition of encapsulation PETG (poly(ethylene terephthalate) glycol) and preparation method thereof |
| CN104774433A (en) * | 2015-04-14 | 2015-07-15 | 江苏绿艳高分子材料有限公司 | TUP large sole and preparation method thereof |
| CN105367984A (en) * | 2015-11-18 | 2016-03-02 | 安徽雄亚塑胶科技有限公司 | TPE pulling force strap material and preparation method thereof |
| CN105542433A (en) * | 2016-01-05 | 2016-05-04 | 安徽一招百势训练器材研究开发有限公司 | Inner filling material for human-shaped training device for body building |
| CN107099153A (en) * | 2017-05-03 | 2017-08-29 | 东莞市毅锦实业有限公司 | A kind of TPE composites for coating and bonding PET |
| CN107163552A (en) * | 2017-06-30 | 2017-09-15 | 宁波格林美孚新材料科技有限公司 | A kind of method that secondary granulation strengthens TPUE |
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Open date: 20100728 |