CN105255092A - SBC thermoplastic elastic material and preparation technology thereof - Google Patents
SBC thermoplastic elastic material and preparation technology thereof Download PDFInfo
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- CN105255092A CN105255092A CN201510702313.6A CN201510702313A CN105255092A CN 105255092 A CN105255092 A CN 105255092A CN 201510702313 A CN201510702313 A CN 201510702313A CN 105255092 A CN105255092 A CN 105255092A
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Abstract
The invention discloses an SBC thermoplastic elastic material and a preparation technology thereof. The SBC thermoplastic elastic material is prepared from, by weight, 35-60 parts of matrix resin, 5-35 parts of extending oil, 5-25 parts of thermoplastic polyolefin resin, 0-15 parts of thermoplastic elastomer resin, 0-15 parts of fillers and 0.1-0.5 part of compound stabilizers. The invention further discloses a preparation technology of the thermoplastic elastic material and aims at providing the thermoplastic elastic material which does not generate an oil outlet phenomenon and shows the excellent compressional resilience on the high-loading condition. The thermoplastic elastic material further has the excellent wear resistance and the good compatibility with a polypropylene (PP ) material and can achieve secondary injection molding with the PP material to firmly wrap the surface of the PP material.
Description
Technical field
The present invention relates to technical field of polymer materials, be specifically related to a kind of SBC thermoplastic elastomer (s) and preparation technology thereof.
Background technology
Thermoplastic elastomer (TPE) molecular chain is made up of plastics section (hard section) and rubber segments (soft section), and plastics section plays physical crosslinking point, at high temperature has reversibility, in plasticity; Rubber segments is snappiness segment, in elasticity.This material is the high-elastic characteristic that a class has rubber at normal temperatures, and under the high temperature conditions can plasticizing forming, there is the processing fluidity that plastics are good, the premium properties novel high polymer material of thermal-arrest thermoplastic plastic and rubber, is therefore widely used in the fields such as family daily necessity, toy, culture and education product, electronic apparatus, trolley part, Industrial products.
Traditional vulcanized rubber, although have excellent high-mechanic and antiwear characteristic, but it need add various compounding aid and carry out mixing, work in-process after mixing also need could be used by sulfuration, its complicated process of preparation, production efficiency is low, reclaims difficulty, and owing to adding various vulcanizing agent and softening agent etc., do not meet environmental requirement.By contrast, thermoplastic elastomer (TPE) material environment friendly, safe, nontoxic, 100% recoverable, the course of processing is simple and easy, be applicable to various processing mode, as extruded, injection moulding, blowing, casting, mold pressing etc., and carry out coated bonding by secondary injection molding and various rigid plastics.This makes the application of thermoplastic elastomer more extensive, firmly gets hobby and the popularization of all trades and professions.
Plastics section chain structure due to thermoplastic elastomer is physical crosslinking point, but not chemically crosslinked structure, in high-load situations, this, easily there is larger tension set in material, and this distortion cannot be replied; And owing to generally all with the addition of a certain proportion of mineral oil in thermoplastic elastomer (s) formula, to improve the processing fluidity of material, but in high-load situations, this, these mineral oil all can migration to a certain degree out, thus pollute contacted product and medium; Simultaneously, the wear resisting property of conventional SBC thermoplastic elastic material can not be very good, therefore, SBC thermoplastic elastomer is restricted in the application that some service requirementss are comparatively harsh, more especially have in the application of high capacity and high abrasion requirement, as sealing-ring, sealing member, industrial castor, medical caster etc.Publication number is that the Chinese invention patent of CN104371248A discloses add a certain proportion of TPU and silicone master batch in SEBS thermoplastic elastomer, the wear resisting property of material can be improved, but because the consistency of TPU material and polypropylene PP material is bad, make it well coatedly be bonded on PP material surface.Publication number is that the Chinese invention patent of CN102268170A discloses add Ethylene-propylene Elastomer in SEBS thermoplastic elastomer, obtain the elastomer material that compression set is less than 30%, but this compression set is the result when rate of compression is fixed as 25%, and under the high load condition of 250kg, this compression set will produce great variety.
Summary of the invention
For the above-mentioned defect existed in prior art, the invention discloses a kind of SBC thermoplastic elastomer (s) and preparation technology thereof, aim to provide one in high-load situations, this without fuel-displaced phenomenon, and show the thermoplastic elastic material of excellent compression and back renaturation, this thermoplastic elastomer also has excellent antiwear characteristic, and with polypropylene PP material, there is good consistency, can secondary injection molding be carried out with PP material and be coated on PP material surface securely.
Technical scheme of the present invention is as follows:
A kind of SBC thermoplastic elastomer (s), comprises each component of following weight part:
Matrix resin: 35 ~ 60 parts;
Extending oil: 5 ~ 35 parts;
Thermoplastic polyolefin resin: 5 ~ 25 parts;
Thermoplastic elastomer resin: 0 ~ 15 part;
Weighting agent: 0 ~ 15 part;
One package stabilizer: 0.1 ~ 0.5 part.
As preferably, described matrix resin is at least one in the saturation type styrene isoprene styrene block copolymer (SIS) (SEPS) of the saturation type styrene-butadiene-styrene block copolymer (SEBS) of hydrogenation, hydrogenation.
As preferably, described extending oil is at least one in saturated straight chain alkane oil, naphthenic oil and silicone oil.
As preferably, described thermoplastic polyolefin resin is at least one in polythene PE, polypropylene PP, polystyrene PS.
As preferably, described thermoplastic elastomer resin is at least one in thermoplastic polyurethane, terpolymer EP rubber, thermoplastic polyester elastomer.
As preferably, described weighting agent is at least one in calcium carbonate, talcum powder, kaolin, White Carbon black.
As preferably, described one package stabilizer is at least one in Irganox1010, Irganox1076, Irganox168, UVP.
The invention also discloses a kind of preparation technology of above-mentioned SBC thermoplastic elastomer (s), comprise the steps:
S1, fully mixed by predetermined proportion with extending oil by matrix resin, oil to be filled is blotted completely by matrix resin, obtains oil-filled type block co-polymer matrix resin;
S2, this oil-filled type block co-polymer matrix resin to be mixed to scale with thermoplastic polyolefin resin, thermoplastic elastomer resin, weighting agent, one package stabilizer in high-speed mixer;
S3, mixed material are sent in twin screw extruder equably by feeder, through twin screw high speed shear, mixing plasticizing, are extruded by cross-head.
As preferably, in described step S3, the temperature of twin screw extruder is set as 190 ~ 240 DEG C, and screw speed is set as 250 ~ 300 revs/min, and rate of feeding is set as 20-30 rev/min.
As preferably, after described step S3, also comprise the step of tie rod, cooling, pelletizing, drying, packaging.
SBC thermoplastic elastic material prepared by the present invention, wear resisting property is excellent, and with polypropylene PP, there is good consistency, be bonded in PP matrix surface by secondary injection molding is coated securely, the course of processing is simple, high temperature vulcanized without the need to passing through, therefore its Application Areas is further expanded, may be used in the coated bonding of some PP body materials, as the high-elastic castor thermoplastic elastic material using PP as core wheel, there is significant economy and social value.
Accompanying drawing explanation
Fig. 1 is the present invention's process flow sheet in one embodiment.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
The invention discloses a kind of SBC thermoplastic elastomer (s), comprise each component of following weight part:
Matrix resin: 35 ~ 60 parts;
Extending oil: 5 ~ 35 parts;
Thermoplastic polyolefin resin: 5 ~ 25 parts;
Thermoplastic elastomer resin: 0 ~ 15 part;
Weighting agent: 0 ~ 15 part;
One package stabilizer: 0.1 ~ 0.5 part.
In concrete enforcement, described matrix resin is at least one in the saturation type styrene isoprene styrene block copolymer (SIS) (SEPS) of the saturation type styrene-butadiene-styrene block copolymer (SEBS) of hydrogenation, hydrogenation, concrete as Taiwan Tai Xiang Co., Ltd 6150,6151,6159, Kuraray company 4033,4044, the YH-503 etc. of 4055, Ba Ling petrochemical industry;
Described extending oil is at least one in saturated straight chain alkane oil, naphthenic oil and silicone oil, specifically as platform moulds 150N, 500N, and Korea S two imperial 150N, 500N, Karamay, Xinjiang KN4006, Japanese SHIN-ETSU HANTOTAI KF96 etc.;
Described thermoplastic polyolefin resin is at least one in polythene PE, polypropylene PP, polystyrene PS, concrete as Maoming Petrochemical T30S, PPH-T03, ME2500, ME9180 of Korea S LG chemistry, Taiwan strange beautiful PG-33, PH88 etc.;
Described thermoplastic elastomer resin is at least one in thermoplastic polyurethane, terpolymer EP rubber, thermoplastic polyester elastomer, specifically as GP95AE, 3555D of Lu Borun, 3720P, 4770R of LG-DOW, 5556,4056 of Dupont, H2040, H6555 etc. of Sichuan morning twilight;
Described weighting agent is at least one in calcium carbonate, talcum powder, kaolin, White Carbon black, domestic Duo Jia producer, concrete as just sent out, Jiangsu Rieter, winning chemical industry etc. in Guangdong in Zhejiang;
Described one package stabilizer is at least one in Irganox1010, Irganox1076, Irganox168, UVP, and concrete producer such as vapour clings to fine chemistry industry, Li Anlong industry etc.
Embodiment 1 ~ 6 is as shown in table 1:
Table 1
The testing standard adopted in embodiment 1 ~ 6, test condition and testing tool are as follows:
Hardness: according to ASTMD2240, at room temperature measures with LS-A rubber Shore A durometer;
Elongation at break/tensile strength: according to ASTMD412, at room temperature use electronic tensile machine to measure, wherein rate of extension is 500mm/min;
Abrasion: according to DIN53516, at room temperature use DIN wear testing machine to measure, calculate its volume worn amount;
High-load performance is tested: at room temperature, be loaded on the standard test piece of 50mm*50mm*6mm with the load-carrying counterweight of 250kg, the loading time is 24 hours, tests following performance index:
Permanent set: before carrying out high-load performance test, the original thickness h0 of testing standard testing plate, after high-load performance test terminates, testing plate is allowed to place 30 minutes in a free state, then the thickness h 1 after its reply is tested, then permanent set C (%)=[(h0-h1)/h0] * 100;
Fuel-displaced situation/oil yield: before carrying out high-load performance test, with the upper and lower coated standard test piece of oil-Absorbing Sheets, and measure the original weight w0 of testing plate, after high-load performance test terminates, observe the oil mark situation on oil-Absorbing Sheets, and do and judge (A without, B is slight, C is medium, D is serious), measure the weight w1 after testing plate test, then oil yield (%)=[(w0-w1)/w0] * 100;
" part " in table 1 all refers to parts by weight, lower same;
As can be seen from the result of the embodiment 1 ~ 4 of table 1, on the basis keeping SBC thermoplastic elastic material hardness constant, improve the content of matrix resin SEBS, effectively can reduce the abrasion of material, improve the wear resisting property of material, the mechanical property of material have also been obtained lifting simultaneously, material high-load performance test in permanent set and oil yield obviously decline along with the increase of matrix resin SEBS content, when SEBS content reaches 55 parts (parts by weight), material is without fuel-displaced phenomenon, and oil yield is less than 0.01%; As can be seen from the result of embodiment 3 and 5, the relative molecular weight of matrix resin SEBS is higher, its wear resisting property and mechanical property are obtained for very large lifting, permanent set in high-load performance test simultaneously also significantly reduces, and without fuel-displaced phenomenon, the relative molecular weight of visible raising matrix resin SEBS, all has very great help to the high-mechanic of SBC thermoplastic elastomer and the lifting of wear resisting property; As can be seen from the result of embodiment 5 and 6, adding of a small amount of silicone oil, be conducive to the raising of wear resisting property, little to other performance impacts.
With reference to the method for embodiment 1 ~ 6 in table 1, and carry out embodiment 7 ~ 11 according to the formula listed by table 2, result is as shown in table 2:
Table 2
As can be seen from the result of table 2 embodiment 7 ~ 9, polythene PE and polystyrene PS add, and have lifting, and the impact of polystyrene PS are more remarkable to the high capacity tension set performance of SBC thermoplastic elastic material, by embodiment 7, the result of 10 and 11 can be found out, thermoplastic polyester elastomer TPEE adds, on the wear resisting property of SBC thermoplastic elastic material and the impact of high capacity tension set performance significantly, when the addition of TPEE is increased to 8 parts (parts by weight), the abrasion of prepared SBC thermoplastic elastic material are low to moderate 96mm3, and the permanent set under 250kg/24hrs condition during high capacity test is low to moderate 3%, visible thermoplastic polyester elastomer TPEE joins in SBC thermoplastic elastomer formula, wear resisting property and the high-mechanic performance of material can be improved largely.
Integrated embodiment 1 ~ 11 can be found out, in preparation high-mechanic, the SBC thermoplastic elastomer formula system that not fuel-displaced, wear resisting property is excellent, by adding the higher matrix resin SEBS of relative molecular weight, be conducive to the wear resisting property and the high-mechanic performance that improve material; Improve the content of matrix resin SEBS simultaneously, also the wear resistance and the high-mechanic that improve material is conducive to, when matrix resin SEBS content is 55 parts (parts by weight), now factice ratio is 0.44, the SBC thermoplastic elastomer of preparation is without fuel-displaced phenomenon in high capacity test, and oil yield is lower than 0.01%; Silicone oil add the wear resisting property being conducive to improving material; Adding of thermoplastic polyolefin resin PE and PS material, be conducive to the high-mechanic performance improving material; In SBC thermoplastic elastomer formula system, thermoplastic polyester elastomer TPEE has significant impact to the wear resistance of SBC thermoplastic elastomer (s) and high-mechanic, a small amount of adds the wear resisting property that can improve material significantly, also reduce the permanent set of material in high capacity test significantly simultaneously, and the consistency of the SBC thermoplastic elastic material prepared thus and PP is good, can be bonded in PP matrix surface by secondary injection molding is coated securely.
The invention also discloses a kind of preparation technology of above-mentioned SBC thermoplastic elastomer (s), comprise the steps:
S1, fully mixed by predetermined proportion with extending oil by matrix resin, oil to be filled is blotted completely by matrix resin, obtains oil-filled type block co-polymer matrix resin;
S2, this oil-filled type block co-polymer matrix resin to be mixed to scale with thermoplastic polyolefin resin, thermoplastic elastomer resin, weighting agent, one package stabilizer in high-speed mixer;
S3, mixed material are sent in twin screw extruder equably by feeder, through twin screw high speed shear, mixing plasticizing, are extruded by cross-head.
As preferably, in described step S3, the temperature of twin screw extruder is set as 190 ~ 240 DEG C, and screw speed is set as 250 ~ 300 revs/min, and rate of feeding is set as 20-30 rev/min.
As preferably, after described step S3, also comprise the step of tie rod, cooling, pelletizing, drying, packaging.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within claims of the present invention.
Claims (10)
1. a SBC thermoplastic elastomer (s), is characterized in that, comprises each component of following weight part:
Matrix resin: 35 ~ 60 parts;
Extending oil: 5 ~ 35 parts;
Thermoplastic polyolefin resin: 5 ~ 25 parts;
Thermoplastic elastomer resin: 0 ~ 15 part;
Weighting agent: 0 ~ 15 part;
One package stabilizer: 0.1 ~ 0.5 part.
2. SBC thermoplastic elastomer (s) as claimed in claim 1, is characterized in that: described matrix resin is at least one in the saturation type styrene isoprene styrene block copolymer (SIS) of the saturation type styrene-butadiene-styrene block copolymer of hydrogenation, hydrogenation.
3. SBC thermoplastic elastomer (s) as claimed in claim 1, is characterized in that: described extending oil is at least one in saturated straight chain alkane oil, naphthenic oil and silicone oil.
4. SBC thermoplastic elastomer (s) as claimed in claim 1, is characterized in that: described thermoplastic polyolefin resin is at least one in polythene PE, polypropylene PP, polystyrene PS.
5. SBC thermoplastic elastomer (s) as claimed in claim 1, is characterized in that: described thermoplastic elastomer resin is at least one in thermoplastic polyurethane, terpolymer EP rubber, thermoplastic polyester elastomer.
6. SBC thermoplastic elastomer (s) as claimed in claim 1, is characterized in that: described weighting agent is at least one in calcium carbonate, talcum powder, kaolin, White Carbon black.
7. SBC thermoplastic elastomer (s) as claimed in claim 1, is characterized in that: described one package stabilizer is at least one in Irganox1010, Irganox1076, Irganox168, UVP.
8. the preparation technology of the SBC thermoplastic elastomer (s) according to any one of claim 1 ~ 7, is characterized in that, comprise the steps:
S1, fully mixed by predetermined proportion with extending oil by matrix resin, oil to be filled is blotted completely by matrix resin, obtains oil-filled type block co-polymer matrix resin;
S2, this oil-filled type block co-polymer matrix resin to be mixed to scale with thermoplastic polyolefin resin, thermoplastic elastomer resin, weighting agent, one package stabilizer in high-speed mixer;
S3, mixed material are sent in twin screw extruder equably by feeder, through twin screw high speed shear, mixing plasticizing, are extruded by cross-head.
9. the preparation technology of SBC thermoplastic elastomer (s) as claimed in claim 8, it is characterized in that: in described step S3, the temperature of twin screw extruder is set as 190 ~ 240 DEG C, screw speed is set as 250 ~ 300 revs/min, and rate of feeding is set as 20-30 rev/min.
10. the preparation technology of SBC thermoplastic elastomer (s) as claimed in claim 8, is characterized in that: the step also comprising tie rod, cooling, pelletizing, drying, packaging after described step S3.
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2015
- 2015-10-26 CN CN201510702313.6A patent/CN105255092A/en active Pending
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| CN106928741A (en) * | 2017-03-22 | 2017-07-07 | 合肥浦尔菲电线科技有限公司 | A kind of glass stand stop elastomeric material and its preparation technology |
| CN106957508A (en) * | 2017-04-11 | 2017-07-18 | 房小明 | A kind of heat-resistant antifriction thermoplastic elastomer (TPE) and preparation method thereof |
| CN107189454B (en) * | 2017-07-20 | 2020-05-19 | 广东创弘材料科技有限公司 | Thermoplastic vulcanized elastomer composition, preparation method and application thereof |
| CN107189454A (en) * | 2017-07-20 | 2017-09-22 | 广东创弘材料科技有限公司 | Thermoplastic vulcanizates elastic composition and preparation method thereof, purposes |
| CN108485011A (en) * | 2018-03-09 | 2018-09-04 | 安徽中意胶带有限责任公司 | A kind of green energy conservation abrasion-proof and cold-resistant flame retarded thermoplastic's rubber and preparation method thereof |
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| CN108437260A (en) * | 2018-04-28 | 2018-08-24 | 广州市合诚化学有限公司 | A kind of thermoplastic elastomer (TPE) oil-filled equipment |
| CN108437260B (en) * | 2018-04-28 | 2023-10-13 | 合诚技术股份有限公司 | Thermoplastic elastomer oil filling equipment |
| CN109971109A (en) * | 2019-04-11 | 2019-07-05 | 广东科悦新材料有限公司 | A kind of high sound-absorbing damping thermoplastic elastomer blend |
| CN110483937A (en) * | 2019-08-08 | 2019-11-22 | 廊坊诚通高分子材料科技有限公司 | The wear-resistant resistance to persistence TPR castor material of superelevation resilience and preparation method |
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| CN113072813A (en) * | 2021-03-18 | 2021-07-06 | 深圳市欧龙优新材料科技有限公司 | High-temperature-resistant flexible polyolefin thermoplastic elastic material |
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Effective date of registration: 20180412 Address after: 518118 Pingshan office six, Pingshan street, Pingshan District, Shenzhen, Guangdong, and fourth buildings first, 1, 2 and 4, 1-4 buildings, first 1-4 floors of the community's high st industrial area. Applicant after: Sata Austria (Shenzhen) Co., Ltd. elastomer Address before: 518000 Shenzhen, Pingshan New District, Guangdong, Pingshan Street office, No. 1 factory building, No. 2 plant, first floor, Applicant before: YIYANG DAPULIN TECHNOLOGY CO., LTD. |
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Application publication date: 20160120 |
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