CN103788562A - Thermoplastic elastomer composition for wrapping and overmolding - Google Patents
Thermoplastic elastomer composition for wrapping and overmolding Download PDFInfo
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- CN103788562A CN103788562A CN201410040165.1A CN201410040165A CN103788562A CN 103788562 A CN103788562 A CN 103788562A CN 201410040165 A CN201410040165 A CN 201410040165A CN 103788562 A CN103788562 A CN 103788562A
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Abstract
The invention discloses a thermoplastic elastomer composition for wrapping and overmolding. The composition comprises the following components in parts by weight: 15-40 parts of styrene segmented copolymer, 15-35 parts of K-resin, 5-30 parts of thickening agent, 0-40 parts of mineral filling agent, 0-3 parts of stabilizing agent, 0-2 parts of lubricant, 0.5-1.5 parts of modifying agent and 0.5-1.0 part of prompting modifying agent. As the thermoplastic elastomer composition disclosed by the invention comprises the prompting modifying agent, the thermoplastic elastomer for secondary overmolding has excellent wrapping capability for POM (Polyoxymethylene), and at the same time when the thermoplastic elastomer is peeled off from hard plastic, the surface of the hard plastic is free of residue.
Description
Technical field
The present invention relates to composition for thermoplastic elastomer, be specifically related to a kind ofly penetrate sticky composition for thermoplastic elastomer for coated.
Background technology
Polyoxymethylene refers to that a class low-pole line style thermoplastic polymer that contains oxidation methylene radical repeated structural unit in molecular chain is called for short POM.POM has higher physical strength and over-all properties in one situation, is a kind of good engineering plastics.Be widely used in automobile, household electrical appliance, equipment configuration, physical construction, instrument, electronics and running stores industry.Be stressed that especially, it is because good sliding friction is for many movable parts, as gear member, deflection belt pulley, ratchet or regulating rod, also because good rebound resilience is for quick connection.But because these product surfaces are smooth and harder, hand feel and drape is poor, be therefore coated one deck flexible glue thermoplastic elastomer to strengthen its feel at its finished surface, can improve its surface aesthetic simultaneously, promote texture.
But penetrate the sticky production process that is coated with the goods that POM and other materials based on POM modification are base material at thermoplastic elastomer, produce overlap, incompleteness, the such defect ware of surface spots, so need to peel off outer field thermoplastic elastomer and again coated.When the goods that the elastomeric POM of coating thermoplastic and other materials based on POM modification are base material recovery simultaneously, be to have impurity thermoplastic elastomer to exist because goods remained on surface part thermoplastic elastomer in the time peeling off causes reclaiming PA product, recovery process becomes complexity very.The thermoplastic elastomer that prior art adopts, penetrating good for guaranteeing covering property when sticky, and can be residual as the product surface of base material take POM and other materials based on POM modification in the process of peeling off, be unfavorable for the material secondary utilization take POM and other materials based on POM modification as base material.Therefore in order to improve products production efficiency, goods organic efficiency, needs a kind of thermoplastic elastomer that good covering property not only can be provided, simultaneously in the process of peeling off in the surperficial noresidue take POM and other materials based on POM modification as the goods of base material.Patent CN101983990A, CN1102702664A provides a kind of thermoplastic elastomer of well penetrating the goods that sticky POM and other materials based on POM modification are base material, but all can have the residual layer of thermoplastic elastomer when its sur-face peeling.Patent CN103172962A discloses a kind of thermoplastic elastomer of peeling off noresidue, but it is only limited to coating ABS, PC/ABS and the duroplasts goods that are base material based on them.
Summary of the invention
The object of the invention is for not enough in above-mentioned prior art, provide a kind of and penetrate sticky composition for thermoplastic elastomer for being coated.This composition for thermoplastic elastomer for POM duroplasts and other duroplastss based on POM modification coated penetrate sticky; In its formula, comprise promotion properties-correcting agent, penetrating sticky in thermoplastic elastomer injection moulding is to promote properties-correcting agent and properties-correcting agent can form good synergy, make thermoplastic elastomer and POM surface form a kind of special chemical embedding structure, the connection mode of this chemical embedding structure has guaranteed that thermoplastic elastomer and POM duroplasts and other duroplastss based on POM modification are firmly coated simultaneously in the time that thermoplastic elastomer and hard plastic are peeled off, the surperficial noresidue of hard plastic.
The object of the invention is to be achieved through the following technical solutions:
The present invention relates to a kind ofly penetrate sticky composition for thermoplastic elastomer for coated, described composition comprises each component of following parts by weight:
Preferably, described styrenic block copolymer is selected from one or more the mixture in styrene-butadiene-styrene block copolymer, styrene isoprene styrene block copolymer (SIS), styrene-ethylene-butylene-styrene block copolymer, styrene-ethylene-propylene-styrene segmented copolymer, styrene-ethylene-(ethylene-propylene)-styrene block copolymer.
Preferably, described tackifier are flash-points higher than one or both the mixture in saturated straight chain alkane oil, the naphthenic oil of 150 ℃.
Preferably, described mineral filler is at least one being selected from calcium carbonate, talcum powder, terra alba, asbestos powder, potter's clay, barium sulfate, mica powder, kaolin.More preferably, the consumption of described mineral filler is 12～30 parts.
Preferably, described stablizer is to be selected from one or more in benzophenone functional compounds stablizer, hindered phenol stabilizer, phosphite ester stabilizer, hindered amine stabilizer.
Preferably, described lubricant is at least one being selected from lipid acid, fatty acid amide, silicone.
Preferably, described properties-correcting agent is the molecular compound with peroxy (O-O-).
Preferably, the described molecular compound with peroxy (O-O-) is dicumyl peroxide (DCP), 1,3-1, one or more in 4-bis-(t-butyl peroxy sec.-propyl) benzene (DIPB).
Preferably, described promotion properties-correcting agent is one or both the combination in resol SP1045, SP1055.
Compared with prior art, the present invention has following beneficial effect:
Thermoplastic elastomer of the present invention provide a kind of can with the formula of POM and the firm encapsulate of goods take POM as base material, its distinctive formula composition can firmly be coated POM and the goods take POM as base material, simultaneously when elastomerics and hard plastic are peeled off, hard plastic surface is residual without thermoplastic elastomer residual layer, greatly facilitates production and the recovery of the goods that POM and other materials based on POM modification are base material.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art further to understand the present invention, but not limit in any form the present invention.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement.These all belong to protection scope of the present invention.
embodiment 1～5
The injection moulding of the present embodiment 1～5 is penetrated sticky composition for thermoplastic elastomer and is comprised following component:
Styrenic block copolymer: G1651,1536, Ba Ling petrochemical industry Yueyang head factory YH503 rise in section
Resin: Q5925 Taiwan is very beautiful
Tackifier: Karamay, Xinjiang refinery KN4010
Mineral filler: at least one in calcium carbonate, talcum powder, terra alba, asbestos powder, potter's clay, barium sulfate, mica powder, kaolin
Stablizer: BASF 168,1010
Lubricant: Akzo Nobel's erucicamide
Properties-correcting agent: Acker agate DCP
Promote properties-correcting agent: the SP1045 of company, the TAIC (cyanacrylate) of Akzo Nobel N.V. take in the U.S. ten;
Take feed composition by table 1 proportioning respectively, first styrene analog thermoplastic elastomer is fully mixed with mineral oil (being tackifier), after treating that styrene analog thermoplastic elastomer fully blots oil, add other components to mix in mixer by formula requirement.After mixing, material is sent in twin screw extruder (times Long Keya of CTE36 section (Nanjing) Machinery Co., Ltd.), under the condition of processing temperature (170 ℃～210 ℃), screw speed (40Hz) by mixture of raw material through twin screw high speed shear, mixing, extrude, tie rod, cooling, granulation.
The preparation method of composition of comparative example 1 is with embodiment 1, and institute's difference is in table 1.
Table 1
Table 2 is the test result of embodiment 1～5 and comparative example 1:
Table 2
From table 2, draw: the present invention is compared to comparative example 1, stripping strength of the present invention remains at 2MPa left and right, do not reduce compared with prior art, but the coated product of the present invention simultaneously remains in hard plastic surface without the composition of thermoplastic elastomer in the time peeling off, solve greatly POM and the hard plastic take POM as the base material difficult problem in secondary injection adhering production and recycling process, there are wide market outlook.There is synergy with the properties-correcting agent in the present invention that illustrated more especially of comparative example 2 with promoting properties-correcting agent in embodiment 1, make thermoplastic elastomer and POM surface form a kind of special chemical embedding structure, the connection mode of this chemical embedding structure has guaranteed that thermoplastic elastomer and POM duroplasts and other duroplastss based on POM modification are firmly coated simultaneously in the time that thermoplastic elastomer and hard plastic are peeled off, the surperficial noresidue of hard plastic.
embodiment 6,7
The injection moulding of the present embodiment 6,7 is penetrated the component of sticky composition for thermoplastic elastomer and consumption in table 3, and it is prepared with embodiment 1.Detected result is in table 4.
Table 3
Table 4
| Test event | Testing method | Embodiment 6 | Embodiment 7 |
| With POM hard plastic cohesive force MPa | D412 | 2.07 | 1.98 |
| Interface is residual | Range estimation | Noresidue | Noresidue |
From table 2,4, stripping strength of the present invention remains at 2MPa left and right, the coated product of the present invention simultaneously remains in hard plastic surface without the composition of thermoplastic elastomer in the time peeling off, solve greatly POM and the hard plastic take POM as the base material difficult problem in secondary injection adhering production and recycling process, there are wide market outlook.
Above specific embodiments of the invention are described.It will be appreciated that, the present invention is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (9)
1. penetrate a sticky composition for thermoplastic elastomer for coated, it is characterized in that, described composition comprises each component of following parts by weight:
2. according to claim 1ly penetrate sticky composition for thermoplastic elastomer for coated, it is characterized in that, described styrenic block copolymer is selected from one or more the mixture in styrene-butadiene-styrene block copolymer, styrene isoprene styrene block copolymer (SIS), styrene-ethylene-butylene-styrene block copolymer, styrene-ethylene-propylene-styrene segmented copolymer, styrene-ethylene-(ethylene-propylene)-styrene block copolymer.
3. according to claim 1ly penetrate sticky composition for thermoplastic elastomer for coated, it is characterized in that, described tackifier are flash-points higher than one or both the mixture in saturated straight chain alkane oil, the naphthenic oil of 150 ℃.
4. according to claim 1ly penetrate sticky composition for thermoplastic elastomer for coated, it is characterized in that, described mineral filler is at least one being selected from calcium carbonate, talcum powder, terra alba, asbestos powder, potter's clay, barium sulfate, mica powder, kaolin.
5. according to claim 1ly penetrate sticky composition for thermoplastic elastomer for coated, it is characterized in that, described stablizer is to be selected from one or more in benzophenone functional compounds stablizer, hindered phenol stabilizer, phosphite ester stabilizer, hindered amine stabilizer.
6. according to claim 1ly penetrate sticky composition for thermoplastic elastomer for coated, it is characterized in that, described lubricant is at least one being selected from lipid acid, fatty acid amide, silicone.
7. according to claim 1ly penetrate sticky composition for thermoplastic elastomer for coated, it is characterized in that, described properties-correcting agent is the molecular compound with peroxy.
8. according to claim 7ly penetrate sticky composition for thermoplastic elastomer for coated, it is characterized in that, the described molecular compound with peroxy is dicumyl peroxide, 1,3-1, one or more in 4-bis-(t-butyl peroxy sec.-propyl) benzene.
9. according to claim 1ly penetrate sticky composition for thermoplastic elastomer for coated, it is characterized in that, described promotion properties-correcting agent is one or both the combination in resol SP1045, SP1055.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893227A (en) * | 2015-06-29 | 2015-09-09 | 房小明 | Thermoplastic elastomer used with PC (polycarbonate) material by means of secondary shot sticking and preparation method of thermoplastic elastomer |
| CN106967272A (en) * | 2017-02-28 | 2017-07-21 | 山东道恩高分子材料股份有限公司 | A kind of preparation method of the PA cover materials of high-adhesion high intensity |
| WO2018200957A1 (en) * | 2017-04-28 | 2018-11-01 | Polyone Corporation | Thermoplastic elastomer compounds exhibiting low compression set properties |
| CN109054276A (en) * | 2018-06-26 | 2018-12-21 | 南通普力马弹性体技术有限公司 | Thermoplastic elastic material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492253A (en) * | 2011-12-14 | 2012-06-13 | 厦门集优新材料有限公司 | Thermoplastic elastomer for secondary sticky ejection with polyformaldehyde, and preparation method thereof |
| CN102585427A (en) * | 2012-02-22 | 2012-07-18 | 威海洁瑞医用制品有限公司 | SEBS (Styrene-Ethylene-Butadiene-Styrene) elastomer composite material and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492253A (en) * | 2011-12-14 | 2012-06-13 | 厦门集优新材料有限公司 | Thermoplastic elastomer for secondary sticky ejection with polyformaldehyde, and preparation method thereof |
| CN102585427A (en) * | 2012-02-22 | 2012-07-18 | 威海洁瑞医用制品有限公司 | SEBS (Styrene-Ethylene-Butadiene-Styrene) elastomer composite material and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893227A (en) * | 2015-06-29 | 2015-09-09 | 房小明 | Thermoplastic elastomer used with PC (polycarbonate) material by means of secondary shot sticking and preparation method of thermoplastic elastomer |
| CN106967272A (en) * | 2017-02-28 | 2017-07-21 | 山东道恩高分子材料股份有限公司 | A kind of preparation method of the PA cover materials of high-adhesion high intensity |
| CN106967272B (en) * | 2017-02-28 | 2020-05-22 | 山东道恩高分子材料股份有限公司 | Preparation method of high-cohesiveness and high-strength PA encapsulating material |
| WO2018200957A1 (en) * | 2017-04-28 | 2018-11-01 | Polyone Corporation | Thermoplastic elastomer compounds exhibiting low compression set properties |
| US11390739B2 (en) | 2017-04-28 | 2022-07-19 | Avient Corporation | Thermoplastic elastomer compounds exhibiting low compression set properties |
| CN109054276A (en) * | 2018-06-26 | 2018-12-21 | 南通普力马弹性体技术有限公司 | Thermoplastic elastic material |
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Effective date of registration: 20180716 Address after: 226407 Yang Kou Town Chemical Industrial Park, Rudong, Nantong, Jiangsu Patentee after: FINE-BLEND COMPATILIZER JIANGSU CO., LTD. Address before: No. 3078 Hu min Road, Minhang District, Shanghai Patentee before: Rizhisheng New Technology Development Co., Ltd., Shanghai |