CN105602182A - Thermoplastic elastomer raw material for caster wheels and manufacturing method thereof - Google Patents
Thermoplastic elastomer raw material for caster wheels and manufacturing method thereof Download PDFInfo
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- CN105602182A CN105602182A CN201610066388.4A CN201610066388A CN105602182A CN 105602182 A CN105602182 A CN 105602182A CN 201610066388 A CN201610066388 A CN 201610066388A CN 105602182 A CN105602182 A CN 105602182A
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- thermoplastic elastomer
- castor
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
- C08L53/025—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes modified
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a thermoplastic elastomer raw material for caster wheels and a manufacturing method thereof. The thermoplastic elastomer raw material is used for manufacturing caster wheels, and comprises the following components in percentage by weight: 50-60% of hydrogenated styrene-butadiene block copolymer, 5-8% of softening oil, 30-40% of polypropylene resin, 2-3% of wear-resistant aid and 2-4% of flow promoter. The sum of weight of the components is the base number. The thermoplastic elastomer raw material disclosed by the invention solves the technical problem of oil stains left on the bearing ground on the basis of having the advantages of high elasticity, weather resistance, fatigue resistance and the like in the thermoplastic elastomer raw material. The manufacturing method of the thermoplastic elastomer raw material has the advantages of simple technical implementation and high practical operability, and has favorable industrialized application prospects.
Description
Technical field
The present invention relates to chemicals raw material field, particularly a kind of thermoplasticity for castorElastomer raw material and manufacture method thereof are being taken turns the application on manufacturing with it without oil foot.
Background technology
Modern age, increasing equipment needed mobile along with the rise of the industrial revolution, and castor alsoIn the whole world, application is more and more extensive, and all trades and professions almost be unable to do without castor. Arrived modern withThe development of science and technology, equipment is more and more functions and high usage also, and castor has just become notThe parts that can lack.
Thermoplastic elastomer (TPE) raw material, English name is ThermoPlasticElastomer (letterClaim TPE) or ThermoPlasticRubber (being called for short TPR), be that one has rubberThe high resiliency of glue, high-strengthDegree, high resilience, has again the material of feature that can injection molding. There is environment-protecting asepsis safety,Hardness range is wide, has good coloring, soft-touch, weatherability, fatigue resistance and heatproofProperty, processing characteristics is superior, need not vulcanize, and can recycle to reduce costs, both can secondaryInjection mo(u)lding, with matrix material coating and bondings such as PP, PE, PC, PS, ABS, alsoMoulding separately.
Because castor in use needs the static pressure that bears a heavy burden, lay material in some special planesWhile expecting to use on the material of for example carpet or easily oil suction, require can not leave mimeograph, current oneAs elastomer castor composition of raw materials the inside all contain a certain proportion of softening oil, in use byIn the extruding that is under pressure, leave mimeograph than being easier on carrying ground, urgently propose at present a kind ofSolve above-mentioned carrying ground and stay the technical problem of mimeograph without oil foot wheel raw material.
Summary of the invention
The shortcoming that the object of the invention is to overcome prior art, with not enough, provides a kind of for pinThermoplastic elastomer (TPE) raw material and the manufacture method thereof of wheel.
According to disclosed embodiment, first aspect present invention has proposed a kind of thermoplastic for castorProperty elastomer raw material, its component comprises: hydrogenated styrene-butadiene block copolymer, softeningOil, acrylic resin, antiwear assistant and flow promortor, taking above-mentioned each composition weight sum as baseNumber, its each component proportion is:
Further, described thermoplastic elastomer (TPE) raw material, for the manufacture of castor, adopts described thermoplasticProperty elastomer raw material castor on carrying ground without mimeograph.
Further, described softening oil is rubber softening oil.
Further, described flow promortor is incremental dose of polypropylene plastics.
According to disclosed embodiment, second aspect present invention has proposed a kind of thermoplastic for castorThe manufacture method of property elastomer raw material, described manufacture method comprises the following steps:
S1, described hydrogenated styrene-butadiene block copolymer is stirred in high-speed stirred bucketEvenly, and be stirred to warm 60-70 degree Celsius, divide according to a certain percentage described in several times addSoftening oil stirs, and finally adds described softening oil and stirs 10 minutes until fully blot;
S2, by static the mixture obtaining in described step S1 placement some hours;
S3, by the mixture obtaining in described step S2 add successively described acrylic resin,Described antiwear assistant and described flow promortor, mix;
S4, the raw material preparing in described step S3 is poured in double screw extruder, with necessarilyTemperature, engine speed, feeding rotating speed production granulation;
S5, the raw material particle of producing in described step S4 is dried after 2 hours with 90 DEG C againPackaging.
Further, described in adding at twice according to the ratio of 50%:50% in described step S1Softening oil stirs, and be 15 minutes interval time that at every turn adds described softening oil.
Further, in described step S2, put static the mixture obtaining in described step S1Put 36 hours.
The present invention has following advantage and effect with respect to prior art:
1) the thermoplastic elastomer (TPE) raw material that the present invention proposes is applied to without oil foot wheel and manufactures, and is protectingHold thermoplastic elastomer (TPE) raw material consistent there is the advantages such as high resiliency, weatherability, fatigue resistanceOn basis, further solve carrying ground and stayed the technical problem of mimeograph.
2) manufacture method of the thermoplastic elastomer (TPE) raw material that the present invention proposes, technology realizes simple,Actual workable, there is good industrial applications prospect.
Brief description of the drawings
Fig. 1 is disclosed a kind of thermoplastic elastomer (TPE) raw material manufacture for castor in the present inventionThe process step figure of method.
Detailed description of the invention
For making object of the present invention, technical scheme and advantage clearer, clear and definite, referring toAccompanying drawing develops simultaneously, and the present invention is described in more detail for embodiment. Should be appreciated that described hereinSpecific embodiment only, in order to explain the present invention, is not intended to limit the present invention.
Embodiment mono-
The present embodiment discloses a kind of thermoplastic elastomer (TPE) raw material, described thermoplastic elastomer (TPE) raw materialFor the manufacture of castor, adopt castor nothing oil on carrying ground of described thermoplastic elastomer (TPE) raw materialPrint.
Its component comprises: hydrogenated styrene-butadiene block copolymer, softening oil, polypropyleneResin, antiwear assistant and flow promortor, taking above-mentioned each composition weight sum as radix, its each groupDistribution ratio is:
Above-mentioned hydrogenated styrene-butadiene block copolymer (styrene-butadieneTriblockcopolymer, is called for short: SBS) be white loose column solid, chemical characteristic:The relative molecular mass of SEBS has a significant impact performance, and relative molecular mass is large, and solution is glutinousDegree is large, and adhesive strength is high. Monomer composition in product is more important than very, along with styrene and fourth twoThe ratio S/B of alkene increases, and Polymer Solution Viscosity diminishes, and hot strength and hardness increase. HaveGood hot strength, elasticity and electrical property, permanent deformation is little, and it is good to subdue with resilience, tableFace friction is large. Resistance to ozone, oxygen, ultraviolet irradiation performance and butadiene-styrene rubber are similar. Gas permeability is excellentDifferent. The two keys that contain due to main chain make SBS ageing-resistant poor, at the oxidizing condition of high temperature airUnder, butadiene block can be cross-linked, thus the hardness of making and viscosity increase.
Above-mentioned softening oil adopts rubber softening oil, because the Mooney viscosity of rubber is higher, mixingTime bad construction, need to be heated to 150 degree or higher temperature, waste very much energy, so needAdd softening oil to reduce Mooney viscosity; At present conventional have carbon five and terpene resin, paraffin,The material such as mineral oil, polyisoprene. Above-mentioned different materials is very cheap, so general tire allAll use paraffin with mineral oil, sealing strip, adhesive is with carbon five terpene resins etc.; And poly-isoamyl twoAlkene is liquid, can substitute above-mentioned substance, but price is partially expensive.
Above-mentioned acrylic resin is a kind of crystalline polymer of compound with regular structure, is light oyster white grainThe thermoplastic resin of material, tasteless, nontoxic, light weight. Relative density is 0.90～0.91, isThe lightest one in resins for universal use. Satisfactory mechanical property, heat resistance is good, and its fusing point is170 DEG C of left and right, without under External Force Acting, 150 DEG C are indeformable, and chemical stability is good, acidproof,Alkali and organic solvent, with most of chemicals (as fuming nitric aicd, chromic acid solution, halogen,Benzene, carbon tetrachloride, chloroform etc.) do not have an effect, and water suction hardly. Polypropylene shortcoming isEasily aging, when low temperature, become fragile, low temperature impact strength is poor, but available add additive, blend orThe methods such as copolymerization are improved.
Acrylic resin can be processed by injection moulding, extrusion molding, blowing, the method such as reel off raw silk from cocoons. SuitableMake various electric components, television set and radio receiver shell, anti-corrosion pipeline, sheet material, automotive departmentPart, Turnover Box, braided packing bag, packing film Strapping Material, various container, various clothingArticles for use, artificial lawn etc.
Antiwear assistant is the important source material of rubber industry, though consumption is little, act on very large, polyesterClass elastomer all be unable to do without antiwear assistant from being synthesized to processed and applied, and antiwear assistant can significantly be carriedRise the anti-wear performance of thermoplastic elastomer (TPE) raw material.
Flow promortor has polytype, and wherein plastic flow agent is the chemistry spy according to different plasticsPoint, in plastics processing, dissimilar plastic flow agent is by corresponding Chemical PhysicsAct on, can increase substantially the molten finger of various plastics, increase the processing fluidity of plastics, changeThe surface gloss of kind plastic product, is suitable for various moulding process and various goods, easy to use,Safety and environmental protection.
In the present invention according to incremental dose of mobility variety adoption polypropylene plastics, its dynamically orUnder static conditions, can reduce surface tension--surfacetension, increase wettability,Improve the auxiliary agent of levelling effect. If levelling is bad, will cause tangerine peel, shrinkage cavity, brush mark etc.Paint film defect.
Embodiment bis-
Refer to Fig. 1, Fig. 1 is disclosed a kind of thermoplastic elastomehc for castor in the present embodimentThe process step figure of the manufacture method of gonosome raw material. A kind of thermoplastic elastomer (TPE) shown in Fig. 1 is formerThe manufacture method of material, for the production of the thermoplastic elastomer (TPE) raw material of manufacturing for the manufacture of castor, adoptsOn carrying ground, there is the feature without mimeograph with the castor of described thermoplastic elastomer (TPE) raw material.
As shown in Figure 1, described manufacture method comprises the following steps:
S1, described hydrogenated styrene-butadiene block copolymer is stirred in high-speed stirred bucketEvenly, and be stirred to warm 60-70 degree Celsius, divide according to a certain percentage described in several times addSoftening oil stirs, and finally adds described softening oil and stirs 10 minutes until fully blot;
Another preferred embodiment in, add at twice institute according to the ratio of 50%:50%State softening oil and stir, be 15 minutes interval time that at every turn adds described softening oil.
S2, by static the mixture obtaining in described step S1 placement some hours;
Another preferred embodiment in, by static the mixture obtaining in described step S1Place 36 hours.
S3, by the mixture obtaining in described step S2 add successively described acrylic resin,Described antiwear assistant and described flow promortor, mix, and blanking prepares to produce;
S4, the raw material preparing in described step S3 is poured in double screw extruder, with necessarilyTemperature, engine speed, feeding rotating speed production granulation;
S5, the raw material particle of producing in described step S4 is dried after 2 hours with 90 DEG C againPackaging,, can send to user and use.
Whole preparation process must be by clean all the and original equipment cleaning contacting, and must beOperation in independent factory building, prevents cross pollution.
In sum, raw according to the manufacture method of the above-mentioned thermoplastic elastomer (TPE) raw material for castorThe thermoplastic elastomer (TPE) raw material that output is come, keep thermoplastic elastomer (TPE) raw material consistent there is heightOn the basis of the advantages such as elasticity, weatherability, fatigue resistance, further solve castor carrying groundFace leaves the technical problem of mimeograph. This manufacture method simultaneously, technology realizes simple, and reality can be graspedThe property done is strong, has good industrial applications prospect.
Above-described embodiment is preferably embodiment of the present invention, but embodiments of the present invention are notBe restricted to the described embodiments, any of other do not deviate under Spirit Essence of the present invention and principleThe change done, modification, substitute, combination, simplify, all should be equivalent substitute mode, allWithin being included in protection scope of the present invention.
Claims (7)
1. for a thermoplastic elastomer (TPE) raw material for castor, its component comprises: hydrogenation of benzene secondAlkene-butadiene block copolymer, softening oil, acrylic resin, antiwear assistant and flow promortor,It is characterized in that, taking above-mentioned each composition weight sum as radix, its each component proportion is:
2. a kind of thermoplastic elastomer (TPE) raw material for castor according to claim 1,It is characterized in that, described thermoplastic elastomer (TPE) raw material, for the manufacture of castor, adopts described thermoplasticityThe castor of elastomer raw material is carrying on ground without mimeograph.
3. a kind of thermoplastic elastomer (TPE) raw material for castor according to claim 1,It is characterized in that, described softening oil is rubber softening oil.
4. a kind of thermoplastic elastomer (TPE) raw material for castor according to claim 1,It is characterized in that, described flow promortor is incremental dose of polypropylene plastics.
5. according to the arbitrary described a kind of thermoplastic elastic for castor of claim 1 to 4The manufacture method of body raw material, is characterized in that, described manufacture method comprises the following steps:
S1, described hydrogenated styrene-butadiene block copolymer is stirred in high-speed stirred bucketEvenly, and be stirred to warm 60-70 degree Celsius, divide according to a certain percentage described in several times addSoftening oil stirs, and finally adds described softening oil and stirs 10 minutes until fully blot;
S2, by static the mixture obtaining in described step S1 placement some hours;
S3, by the mixture obtaining in described step S2 add successively described acrylic resin,Described antiwear assistant and described flow promortor, mix;
S4, the raw material preparing in described step S3 is poured in double screw extruder, with necessarilyTemperature, engine speed, feeding rotating speed production granulation;
S5, the raw material particle of producing in described step S4 is dried after 2 hours with 90 DEG C againPackaging.
6. a kind of thermoplastic elastomer (TPE) raw material for castor according to claim 5Manufacture method, is characterized in that, in described step S1 according to the ratio of 50%:50% at twiceAdd described softening oil to stir, be 15 minutes interval time that at every turn adds described softening oil.
7. a kind of thermoplastic elastomer (TPE) raw material for castor according to claim 5Manufacture method, is characterized in that, in described step S2 by the mixing obtaining in described step S1The static placement of thing 36 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610066388.4A CN105602182A (en) | 2016-01-29 | 2016-01-29 | Thermoplastic elastomer raw material for caster wheels and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610066388.4A CN105602182A (en) | 2016-01-29 | 2016-01-29 | Thermoplastic elastomer raw material for caster wheels and manufacturing method thereof |
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| CN105602182A true CN105602182A (en) | 2016-05-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020037780A1 (en) * | 2018-08-21 | 2020-02-27 | 广西沙沙岛实业有限公司 | Elastic particle and preparation method and application thereof |
Citations (3)
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|---|---|---|---|---|
| CN101845195A (en) * | 2010-05-07 | 2010-09-29 | 浙江俊尔新材料有限公司 | Wear-resistant thermoplastic elastomer and preparation method thereof |
| CN103351566A (en) * | 2013-05-28 | 2013-10-16 | 宁波科盛光电有限公司 | Special material for antistatic truckle, and antistatic truckle jacket and antistatic truckle made through using it |
| CN104817805A (en) * | 2015-04-16 | 2015-08-05 | 东莞市利鸿塑胶有限公司 | Thermoplastic elastomer material for industrial/medical caster |
-
2016
- 2016-01-29 CN CN201610066388.4A patent/CN105602182A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845195A (en) * | 2010-05-07 | 2010-09-29 | 浙江俊尔新材料有限公司 | Wear-resistant thermoplastic elastomer and preparation method thereof |
| CN103351566A (en) * | 2013-05-28 | 2013-10-16 | 宁波科盛光电有限公司 | Special material for antistatic truckle, and antistatic truckle jacket and antistatic truckle made through using it |
| CN104817805A (en) * | 2015-04-16 | 2015-08-05 | 东莞市利鸿塑胶有限公司 | Thermoplastic elastomer material for industrial/medical caster |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020037780A1 (en) * | 2018-08-21 | 2020-02-27 | 广西沙沙岛实业有限公司 | Elastic particle and preparation method and application thereof |
| US10844214B2 (en) | 2018-08-21 | 2020-11-24 | Guangxi Sisland Industrial Co. Ltd | Elastic particle and preparation method thereof |
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