CN102485793B - Thermoplastic composition possessing improved melt fluidity - Google Patents
Thermoplastic composition possessing improved melt fluidity Download PDFInfo
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- CN102485793B CN102485793B CN201010577122.9A CN201010577122A CN102485793B CN 102485793 B CN102485793 B CN 102485793B CN 201010577122 A CN201010577122 A CN 201010577122A CN 102485793 B CN102485793 B CN 102485793B
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Abstract
The invention discloses a thermoplastic composition, which comprises polyester, a polymer type melt viscosity modifier and other additives with optional existence. The good balance of melt fluidity with the heat stability and the mechanical property can be realized by controlling the amount of the polymer type melt viscosity modifier. The composition is suitable for preparing the moulding products such as automobile, electrical and electronic units, and fiber products such as fiber, yarn, fabric and carpet.
Description
Technical field
The present invention relates to polymer composition field, relate to particularly the thermoplastic compounds containing polyester.Described composition has improved fluidity of molten, good thermostability and mechanical property.The invention still further relates to the preparation method and application of described thermoplastic compounds.
Background technology
Polyester is a base polymer that contains ester functional group in its main chain.The most known polyester is poly terephthalic acid alkylidene group diester class, comprises polyethylene terephthalate (PET), Poly(Trimethylene Terephthalate) (PTT) and polybutylene terephthalate (PBT).Polyester is often applied to various products such as fibre product, packing film, extrudate or element.
For concrete application, normally chemical property, physical properties and mechanical property are selected polyester or polyester mixture by the expected.But current industry trends is material and produce complicated and have a long-pending delicate elements of small cross section described in High-speed machining.Therefore, the mobility of polyester becomes the important factor relevant to processibility.
If selected polyester or its mixture have higher than required melt viscosity, a kind of way is to improve processing temperature to reduce melt viscosity.Unfortunately higher processing temperature often causes more polymer degradation.
The known melt viscosity that adds melt flow promotor (or melt viscosity-depression agent) can reduce polymer blend.Reported low-molecular-weight flow improver additive as polyalcohols be to the effective melt flow promotor of polyester, but the use of polyalcohols also brings special challenge.Because polyester tends to and hydroxyl generation transesterification reaction, this can cause the molecular weight of polyester to reduce and may follow the unfavorable variation of mechanical property.Japanese Patent Publication has disclosed the tetramethylolmethane, 1 that uses 0.1%-5% in polybutylene terephthalate No. JP10-310690,1,1-tri-(methylol) ethane or 1,1,1-tri-(methylol) propane promote fluidity of molten.Wherein do not disclose the impact of other composition in these impacts that promote other character of mobile additive on matrix resin and described formula.
PCT patent discloses have been described for No. WO2006/050858 by reducing the melt viscosity of polybutylene terephthalate composition and keep mechanical property with the hyperbranched Copolycarbonate of 1%-2%.
United States Patent (USP) discloses have been described Poly(Trimethylene Terephthalate) composition for No. US2009/0192266 and can first mix with the nucleator of 0.005%-1% and produce the first mixture, then this mixture mixes to produce the second mixture with the ethylene-methyl acrylate multipolymer of 3%-15%, the melt viscosity of described the second mixture reduces at least 10% than the melt viscosity of the first mixture, and its number-average molecular weight is at least 75% of the first mixture.
But the consumption of these multipolymers is high, starting material are costliness and preparation process complexity rather.
Derived from for example vinylformic acid hydroxyalkyl acrylate of ethylene linkage unsaturated monomer of hydroxyl or homopolymer or the multipolymer of methacrylic acid hydroxyl alkyl ester, be known as biocompatible polyacrylic ester or synthetic water gel.For example, poly-(2-hydroxyethyl methacrylate) has been widely used in soft contact lenses, or is used for medicine equipment as hydrophilic medical pressure sensitive adhesive.
United States Patent (USP) US5, has described for 391, No. 620 the multipolymer comprising with the methacrylic ester of hydroxy functional group etc. has been reduced to the overflow in the vertical surface of brushing as the rheology modifier (being thickening material) of coating.
United States Patent (USP) US6, has described for 319, No. 576 the multi-functional nucleator of significant quantity for polyester.In 6 embodiment, the PET mixing with 0.4% poly-(methacrylic acid hydroxyl ethyl ester) presents significantly higher than the Tc (Tc) that does not contain the composition of described nucleator, and this has shown that described nucleator accelerates the validity of crystallization.
The invention provides the novel method that uses polymer-type flow improver additive, described flow improver additive is preparation and more cheap than hyperbranched Copolycarbonate or ethylene-acrylate copolymer easily.And the polymer blend of the described polymer-type flow improver additive that comprises significant quantity not only has high workability and keeps its mechanical property and thermostability simultaneously.
Summary of the invention
The present invention relates to thermoplastic compounds, it comprises mixture, it is substantially by compositions of mixtures, or it makes by mixture, and described mixture comprises
Approximately 99.99 % by weight are the polyester of approximately 95.00 % by weight extremely, and
Approximately 0.01 % by weight is to the homopolymer of the hydroxyl of approximately 5.00 % by weight, and the homopolymer of described hydroxyl is to be obtained through polymerization by the ethylene linkage unsaturated monomer of hydroxyl, and wherein said % by weight is the gross weight based on described thermoplastic compounds; And condition is: in the time that described polyester is polyethylene terephthalate (PET), the ethylene linkage unsaturated monomer of described hydroxyl is not 2-hydroxyethyl methacrylate.
In one embodiment, in thermoplastic compounds of the present invention, described polyester is selected from: polyethylene terephthalate, Poly(Trimethylene Terephthalate), polybutylene terephthalate and composition thereof.
In one embodiment, in thermoplastic compounds of the present invention, described polyester is Poly(Trimethylene Terephthalate) homopolymer or Poly(Trimethylene Terephthalate) multipolymer, and it comprises 70 % by weight or more Poly(Trimethylene Terephthalate).
In one embodiment, in thermoplastic compounds of the present invention, the ethylene linkage unsaturated monomer of described hydroxyl has formula CH
2=C (R
1) CO
2r
2, wherein R
1h or C
1-C
6alkyl, and R
2the C being replaced by least one hydroxyl
1-C
8alkyl.
In one embodiment, in thermoplastic compounds of the present invention, the ethylene linkage unsaturated monomer of described hydroxyl has formula CH
2=C (R
1) CO
2r
2, wherein R
1h, methyl or ethyl, and R
2the C being replaced by least one hydroxyl
1-C
4alkyl.
In one embodiment, in thermoplastic compounds of the present invention, the ethylene linkage unsaturated monomer of described hydroxyl is: vinylformic acid 2-hydroxy methacrylate, vinylformic acid 3-hydroxy propyl ester, vinylformic acid 4-hydroxyl butyl ester, 2-hydroxyethyl methacrylate, methacrylic acid 3-hydroxy propyl ester or methacrylic acid 4-hydroxyl butyl ester.
In one embodiment, thermoplastic compounds of the present invention also comprises at least one additive, and described additive is selected from: antioxidant, thermo-stabilizer, UV light stabilizing agent, tinting material, lubricant, hydrolysis-resisting agent, releasing agent and fire retardant including dyestuff and pigment.
The invention still further relates to moulded parts, it comprises above-mentioned composition, is substantially made up of above-mentioned composition, or is made by above-mentioned composition.The invention still further relates to the purposes of described moulded parts as electricity and electronic equipment element, automotive components, machine element and device housings etc.
The invention still further relates to fiber base material, it comprises above-mentioned composition, is substantially made up of above-mentioned composition, or is made by above-mentioned composition.In one embodiment, fiber base material of the present invention is fiber, yarn, fabric or carpet.
The present invention also provides the method for improving the mobility of polymer blend, it comprises: the polyester of 99.99 % by weight to 95.00 % by weight is mixed with the homopolymer of the hydroxyl of 0.01 % by weight to 5.00 % by weight, the homopolymer of described hydroxyl is obtained through polymerization by the ethylene linkage unsaturated monomer of hydroxyl, and wherein said % by weight is the gross weight based on described thermoplastic compounds.
With reference to following explanation, embodiment and the claims of enclosing, various further features of the present invention, consider with advantage and can become clearer.
Embodiment
Except as otherwise noted, all publications of mentioning herein, patent application, patent and other reference are included in herein by reference clearly in full, as described in detail completely.
Unless otherwise defined, all technology used herein and scientific terminology have the identical implication of conventionally understanding with those skilled in the art of the invention.If the contradiction of existence, to comprise that defined herein specification sheets is as main.
Unless otherwise indicated, all per-cent, umber, ratio etc. are all by weight.
Term used herein " by ... make " and " comprising " synonym.Term used herein " comprises ", " comprising ", " containing ", " having " or its any other variant, is intended to contain nonexcludability and comprises.For example, the composition, technique, method, goods or the device that comprise a series of key elements not necessarily only limit to those key elements, but can comprise other key element of clearly not enumerating, or other intrinsic key element of composition, technique, method, goods or device so.
Term " by ... composition " do not comprise any unspecified key element, step or composition.If in the claims, this type of term means described claim and does not comprise the material except cited those, but comprises common relative impurity.When term " by ... composition " appears in the subordinate clause of claim main body, instead of follow preamble closely, it only limits the key element of enumerating in this subordinate clause; Other key element is not excluded outside described claim as a whole.
Term " substantially by ... composition " is used for limiting such composition, method or device; it is except comprising literal the above those; also comprise other material, step, feature, component or key element, condition is that the basic feature with novel of these other materials, step, feature, component or the key element invention on request protection does not produce substantial impact.The scope that contains of term " substantially by ... composition " between " comprising " and " by ... form " between.
Term " comprise " be intended to comprise by term " substantially by ... composition " and " by ... form " embodiment that contains.Similarly, term " substantially by ... composition " is intended to comprise by the embodiment that contains of term " by ... composition ".
In the time that content, concentration or other numerical value or parameter provide with the form of codomain, preferred codomain or a series of larger preferred values and less preferred value, this is interpreted as, disclose particularly all codomains that formed by any logarithmic value (being made up of with any lower limit or less preferred value any upper limit or larger preferred value), no matter whether codomain is open separately.For example, in the time enumerating codomain " 1 to 5 ", described codomain is understood to include codomain " 1 to 4 ", " 1 to 3 ", " 1-2 ", " 1-2 & 4-5 ", " 1-3 & 5 " etc.Unless otherwise indicated, enumerate Numerical Range part herein, described codomain is intended to comprise its endpoint value, and all integers and mark in this codomain.
In the time that term " about " is used for describing the endpoint value of numerical value or codomain, the disclosure is understood to include occurrence or the endpoint value of indication.
In addition, unless contrary statement clearly, " or (or) " refers to " or (or) " of inclusive, but not removing property " or (or) ".For example, the following any one A "or" B:A that satisfies condition is that true (or existence) and B are false (or not existing), A is that false (or not existing) and B are true (or existence), and A and B are very (or existence).
In addition, the indefinite article before key element of the present invention or composition " once " and " one " example (i.e. existence) quantity of meaning described key element or composition be nonrestrictive.Therefore " one " or " one " are understood to include one or at least one, and the singulative of described key element or composition also comprises its plural number, unless its quantity should be odd number significantly.
In specification sheets of the present invention and/or claims, term " homopolymer " refers to the polymkeric substance being obtained by a kind of monomer polymerization; " multipolymer " refer to by two or more monomer polymerizations and polymkeric substance.This analog copolymer comprises copolymer, terpolymer or multiple copolymer.
Describing when some polymkeric substance, should understand applicant sometimes and represent polymkeric substance by the monomer for the preparation of polymkeric substance or for the preparation of the quantity of the monomer of polymkeric substance.And so description may not comprise the concrete name for describing final polymkeric substance, or may not have " by ... the product that method makes " such restriction, the statement of any this type of monomer and quantity should be interpreted as meaning the described monomer that described polymkeric substance comprises those monomers (being the copolymerization units of those monomers) or described amount, with and corresponding polymkeric substance and composition.
In foregoing, term " alkyl " use separately or for compound word as " hydroxyalkyl ", comprise alkyl straight chain or side chain, for example, methyl, ethyl, n-propyl, sec.-propyl or different butyl, amyl group or hexyl isomer." hydroxyalkyl " represents the alkyl group that has at least a hydroxyl to replace.
The total number of carbon atoms in substituted radical is by " Ci-Cj " prefix designates, and wherein i and j are the integers of 1-8.
Material, method and embodiment is herein only exemplary, and unless stated otherwise, should not be construed as restrictive.Applicable method and material have only been described, although can use and those similar or equivalent method and materials as herein described herein in the time implementing or test is of the present invention.
Details are as follows in the present invention.
polyester
According to the present invention, described polyester including by alcohol and dicarboxylic acid (comprising its ester) through esterification or transesterification reaction and any polycondensation product.
The example of described alcohol comprises the glycol with 2 to approximately 10 carbon atoms, for example ethylene glycol, 1,2-propylene glycol, 1, ammediol, 1,3-butyleneglycol, 1,4-butyleneglycol, 1,5-pentanediol, neopentyl glycol, 1,6-hexylene glycol, glycol ether, triglycol, polyoxyethylene glycol, 1,2-CHDM, 1,3-CHDM and 1,4-cyclohexanedimethanol, and for example, compared with the glycol of long-chain and polyvalent alcohol (poly-(tetramethylene ether) glycol, they are reaction product of glycol or polyvalent alcohol and olefinic oxide), or its two or more combination.
The example of described dicarboxylic acid comprises: terephthalic acid, m-phthalic acid, phthalic acid, 2,6-naphthalic acid, succsinic acid, pentanedioic acid, hexanodioic acid, nonane diacid, sebacic acid, 1,4-cyclohexane dicarboxylic acid, 1,3-cyclohexane dicarboxylic acid, 1,12-dodecanedioic acid, with and derivative as the dimethyl ester of these dicarboxylic acid, diethyl ester, dipropyl, or its two or more combination.
Described polyester can be homopolymer or multipolymer.In the time using described multipolymer, the copolymerization dicarboxylic acid composition that forms described multipolymer can be that aromatic dicarboxylic acid is as terephthalic acid, phthalic acid, NDA; Aliphatic dicarboxylic acid is as hexanodioic acid, nonane diacid, sebacic acid and 1,12-dodecanedioic acid.The example of described diol component comprises that aliphatic diol is as ethylene glycol, 1,2-PD, 1,3-PD, BDO, neopentyl glycol and 1,6-hexylene glycol; With alicyclic diol as 1,4 cyclohexane dimethanol.These compounds can use individually, or use with the form of mixtures of two or more compounds.
According to the present invention, be selected from for one of preferred polyester of described thermoplastic compounds: polyethylene terephthalate (PET), Poly(Trimethylene Terephthalate) (PTT), polybutylene terephthalate (PBT) and composition thereof.
PET is the polyester being made through polycondensation (or transesterify) by ethylene glycol and terephthalic acid (or dimethyl terephthalate (DMT)).Described PET can be PET homopolymer or multipolymer, and it preferably comprises 70 % by weight or more polyethylene terephthalate, or its mixture.These can carry out modification with the polyester being made by other glycol or diacid of 30 % by weight at the most.Preferred polyester is PET homopolymer.It should be noted that in thermoplastic compounds of the present invention, in the time that described polyester is polyethylene terephthalate (PET), the ethylene linkage unsaturated monomer of described hydroxyl is not 2-hydroxyethyl methacrylate.
PTT is the polyester that can be made through polycondensation (or transesterify) by 1,3-PD and terephthalic acid (or dimethyl terephthalate (DMT)).1,3-PD for the preparation of described PTT preferably obtains (1,3-PD of " obtaining through biological method ") from renewable source by biochemical method.Described PTT can be homopolymer or multipolymer, and it preferably comprises 70 % by weight or more PTT, or its mixture.These can carry out modification with the polyester being made by other glycol or diacid of 30 % by weight at the most.
According to the present invention, be selected from for one of preferred polyester of described thermoplastic compounds: PTT homopolymer or PTT multipolymer, it comprises 70 % by weight or more PTT.Preferred polyester is PTT homopolymer.
PBT is the polyester that can be prepared through polycondensation (or transesterify) by BDO and terephthalic acid (or dimethyl terephthalate (DMT)).Described PBT can be homopolymer or multipolymer, and it preferably comprises 70 % by weight or more PBT, or its mixture.These can carry out modification with the polyester being made by other glycol or diacid of 30 % by weight at the most.Preferred polyester is PBT homopolymer.
Because polyester and preparation method thereof is known to those skilled in the art, it will not go into details to this for the application.
Limiting viscosity (IV) is to weigh the mode of the molecular weight of polymkeric substance.Limiting viscosity conventionally increases and increases along with polymericular weight, but the type, its shape or the conformation that also depend on polymkeric substance with and measure solvent used.
Limiting viscosity for polyester of the present invention is not particularly limited, as long as described resin can be melted kneading.But in view of mouldability and/or spinning property, the limiting viscosity of polymer blend of the present invention is at least about 0.5dL/g, is preferably at least about 0.7dL/g, is more preferably at least about 0.9dL/g, and be most preferably at least about 1.0dL/g.Preferably about 2.0dL/g at the most of the limiting viscosity of polymer blend of the present invention, more preferably about 1.5dL/g at the most, most preferably about 1.2dL/g at the most.
In one embodiment, in thermoplastic compounds of the present invention, described polyester is that PET and its limiting viscosity are about 0.5-1.0dL/g.In another embodiment, in thermoplastic compounds of the present invention, described polyester is that PTT and its limiting viscosity are about 0.8-1.5dL/g.In one embodiment, in thermoplastic compounds of the present invention, described polyester is that PBT and its limiting viscosity are about 0.8-2.0dL/g.
Applicable polyester can be selected from for example BASF's of commercial brand
pET,
pBT, DuPont's
pET,
pTT,
pBT, Invista's
pET, and SK Chemicals
toray Industries, Inc's
pBT.
Approximately 95.00 % by weight that the amount that is used for the polyester of composition of the present invention is described composition total weight are to approximately 99.99 % by weight, be more preferably extremely approximately 99.95 % by weight of approximately 97.00 % by weight of described composition total weight, be most preferably approximately 99.00 % by weight of described composition total weight to approximately 99.90 % by weight.
melt flow promotor
The homopolymer that is used as the hydroxyl of melt flow promotor in thermoplastic compounds of the present invention is to be obtained through polymerization by the ethylene linkage unsaturated monomer of hydroxyl.
The example of the ethylene linkage unsaturated monomer of hydroxyl is: vinylformic acid hydroxyalkyl acrylate, for example, vinylformic acid 2-hydroxy methacrylate, vinylformic acid 2-hydroxy propyl ester, vinylformic acid 2-hydroxyl isopropyl ester, vinylformic acid 3-hydroxy propyl ester, vinylformic acid 2,3-dihydroxyl propyl ester, vinylformic acid 4-hydroxyl butyl ester, the own ester of vinylformic acid hydroxyl, vinylformic acid hydroxyl monooctyl ester; Methacrylic acid hydroxyl alkyl ester, for example, 2-hydroxyethyl methacrylate, methacrylic acid 2-hydroxy propyl ester, methacrylic acid 3-hydroxy propyl ester, methacrylic acid 2,3-dihydroxyl propyl ester, methacrylic acid 4-hydroxyl butyl ester, the own ester of methacrylic acid hydroxyl, methacrylic acid hydroxyl monooctyl ester; Ethylacrylic acid hydroxyalkyl acrylate, for example, ethylacrylic acid 2-hydroxy methacrylate, ethylacrylic acid 3-hydroxyl-2,2-dimethyl ester, ethyl propylene acid glyceride; Hydroxyl alkene, for example, vinyl carbinol, 1 methylallyl alcohol, 2-methallyl alcohol, 1-ethyl vinyl carbinol, 4-hydroxyl penta-1-alkene, 4-hydroxyl-1-butene; Cis-butene dioic acid hydroxyalkyl acrylate alkyl ester and trans-butene dioic acid hydroxyalkyl acrylate alkyl ester, for example, cis-butene dioic acid 2-hydroxy methacrylate isopropyl ester, cis-butene dioic acid butyl ester 2-hydroxy methacrylate, trans-butene dioic acid butyl ester 2-hydroxy methacrylate, cis-butene dioic acid butyl ester 3-hydroxy propyl ester and trans-butene dioic acid butyl ester 3-hydroxy propyl ester etc.。
Consider business availability, the ethylene linkage unsaturated monomer of described hydroxyl preferably has formula CH
2=C (R
1) CO
2r
2, wherein R
1h or C
1-C
6alkyl, and R
2the C being replaced by least one hydroxyl
1-C
8alkyl.More preferably, described monomer has formula CH
2=C (R
1) CO
2r
2, wherein R
1h, methyl or ethyl, and R
2the C being replaced by least one hydroxyl
1-C
4alkyl.
In one embodiment, in thermoplastic compounds of the present invention, the ethylene linkage unsaturated monomer of described hydroxyl is that (the ethylene linkage unsaturated monomer that is described hydroxyl has formula CH for vinylformic acid hydroxyalkyl acrylate or methacrylic acid hydroxyl alkyl ester
2=C (R
1) CO
2r
2, wherein R
1h or methyl).
In another embodiment, in thermoplastic compounds of the present invention, the ethylene linkage unsaturated monomer of described hydroxyl is vinylformic acid 2-hydroxy methacrylate, vinylformic acid 3-hydroxy propyl ester, vinylformic acid 4-hydroxyl butyl ester, 2-hydroxyethyl methacrylate, methacrylic acid 3-hydroxy propyl ester, or methacrylic acid 4-hydroxyl butyl ester.
It should be noted that in thermoplastic compounds of the present invention, in the time that the ethylene linkage unsaturated monomer of described hydroxyl is 2-hydroxyethyl methacrylate, described polyester is not polyethylene terephthalate (PET).
The homopolymer of described hydroxyl can be prepared by any appropriate means.The example of described polymerization process comprises: mass polymerization, solution polymerization, suspension polymerization or letex polymerization.The polymerization process using depends on the amount of required polymkeric substance and the character of final product prepared by wish.
Polymerization temperature and polymerization time change with the kind of used monomer.For example, it is 0.5-20 hour that polymerization temperature is preferably 0-150 DEG C and polymerization time, and more preferably polymerization temperature is that 40-100 DEG C and polymerization time are 2-10 hour.
If need use solvent when polymerization, described polymer solvent is not particularly limited, for example, toluene, dimethylbenzene, ethylbenzene, methyl ethyl ketone, methyl iso-butyl ketone (MIBK), tetrahydrofuran (THF) and DMF.These solvents can only use one, or can be used in combination by two or more solvents.In the time that the boiling point of described solvent is too high, the residual volatile matter content of the homopolymer of the hydroxyl of final gained uprises, and therefore preferably boiling point is the solvent of 50-200 DEG C.
In the time of polyreaction, can add as required polymerization starter.Described polymerization starter is not particularly limited, and suitable has, for example, organo-peroxide, for example, isopropyl benzene hydroperoxide, diisopropyl benzene hydrogen peroxide, ditertiary butyl peroxide, lauroyl peroxide, benzoyl peroxide, BPIC (t butyl peroxy isopropyl carbonate), and tert-pentyl peroxy-2-ethylhexanoate; And azo compound, for example, 2,2 '-azo two (isopropyl cyanide) (AIBN), 1,1 '-azo two (hexanaphthene formonitrile HCN) and 2,2 '-azo two (2,4-methyl pentane nitrile).These polymerization starters can only use one, or can be used in combination by two or more polymerization starters.The amount of described polymerization starter can be determined arbitrarily according to the combination of monomer and reaction conditions, be not particularly limited.
Select suitable polymerizing condition (for example, the composition of the type of temperature of reaction, initiator and consumption, solvent, strength of solution, reaction times) so that the homopolymer of described hydroxyl is made smoothly.
The homopolymer that exemplifies the described hydroxyl of explanation is to be obtained by the ethylene linkage unsaturated monomer bulk polymerization preparation of hydroxyl.The polymerization degree of the homopolymer being made by bulk polymerization is about 10 conventionally
3-10
5, therefore the molecular-weight average of the homopolymer of gained is expected to be 10
5-10
7(referring to document: " polymer chemistry ", Pan Zuren chief editor, Chemical Industry Press, in January, 2003, the third edition, the 40th page).
The homopolymer of described hydroxyl conventionally can be by the polymerization starter of the ethylene linkage unsaturated monomer of above-mentioned hydroxyl and 0.1 % by weight-0.5 % by weight (based on the weight of described monomer) in popular response container, under high temperature (for example, about 40-100 DEG C), react polymerization in 2-10 hour and make.
The molecular-weight average of the homopolymer of described hydroxyl is preferably 100,000-50, and 000,000, be more preferably 500,000-25,000,000, be even more preferably 800,000-15,000,000, and particularly preferably 1,500,000-5,000,000.
In one embodiment, in thermoplastic compounds of the present invention, the molecular-weight average of the homopolymer of described hydroxyl is 100,000-50,000,000, be more preferably 500,000-25,000,000, be even more preferably 800,000-15,000,000, and particularly preferably 1,500,000-5,000,000.
For the homopolymer as the hydroxyl of flow ability modifying agent, it preferably has the degradation temperature (Td) higher than the typical process temperature of polyester, degrades avoiding between melting mixing processing period.For example, the processing temperature of PTT and PBT is about 240-270 DEG C, and the processing temperature of PET is about 280-295 DEG C.
In one embodiment, in thermoplastic compounds of the present invention, the degradation temperature of the homopolymer of described hydroxyl (Td) is at least about 270 DEG C, is preferably at least about 290 DEG C, and is more preferably at least about 300 DEG C.
The consumption of the homopolymer of described hydroxyl is that approximately 0.01 % by weight is to approximately 5.00 % by weight, be preferably about 0.05 % by weight to approximately 3.00 % by weight, more preferably approximately 0.1 % by weight is to approximately 1.00 % by weight, and wherein said weight percent is the gross weight based on described thermoplastic compounds.When the amount of the homopolymer of described hydroxyl is approximately when 0.01 % by weight, can observe mobility and improve and good mechanical property.In the time that its amount exceedes 5.0 % by weight, the mechanical property of described thermoplastic compounds is subject to negative impact.
other additive
Composition of the present invention can also comprise the conventional and known additive of polymer arts of a small amount of optional existence.The example of additive without limitation including: antioxidant, thermo-stabilizer, UV light stabilizing agent, comprise tinting material, lubricant, hydrolysis-resisting agent, releasing agent and fire retardant dyestuff and pigment.The content of these additives in described composition can be that approximately 0.01 % by weight is to approximately 15 % by weight conventionally, be preferably about 0.01 % by weight to approximately 10 % by weight, basic and the novel feature of described composition as long as they do not detract, and the performance of described composition is not had to significant disadvantageous effect.
The present invention makes the melt viscosity for reducing the thermoplastic compounds that comprises polyester or improves its melt flow characteristics by means of the homopolymer of described hydroxyl.Therefore, the present invention has instructed the homopolymer of hydroxyl (it contains the great amount of hydroxy group being connected on main polymer chain) has been mixed in thermoplastic compounds.
the preparation of blend polymer and character
Thermoplastic compounds of the present invention can make by technology known in the art.Described composition and optional additive powder or particle form typically, and extrude with the form of blend, and/or be cut into particle or other applicable shape.Described composition can mix in any form, for example, mixes in molten state by dry mixed or in forcing machine or in other mixing tank.For example, an embodiment comprises the component of melting mixing powder or particle form, extrudes described blend and is ground into particle or shape that other is applicable.Term " particle " is made broad sense at this and is used, and itself and shape have nothing to do, and are sometimes referred to as " chip ", " section " etc.Also comprise component is carried out to dry mixed, then in forcing machine, mix in molten state.Described mixing temperature should be higher than the fusing point of each component, but lower than its lowest decomposition temperature, therefore must correspondingly adjust for certain concrete composition of the homopolymer of polyester and described hydroxyl.Described mixing temperature, depends on and the homopolymer of concrete polyester of the present invention and described hydroxyl typically is approximately 180 DEG C-Yue 290 DEG C, is preferably at least about 220 DEG C, and more preferably at the most approximately 260 DEG C.
Thermoplastic compounds of the present invention has much desirable character such as, but not limited to, good mobility, good mechanical property, good thermostability, and high resistance to chemicals corrodibility.Particularly, described each component can easily be processed (grumeleuse or caking do not occur).In one embodiment, thermoplastic compounds of the present invention has good thermostability.
The present invention also provide thermoplastic compounds of the present invention for the preparation of molding, prepare film, prepare fiber or prepare the purposes of foam, and molding, film, fiber or the foam that can be made by described thermoplastic compounds.
The thermoplastic compounds of improvement mobility of the present invention can be for any injection moulding purposes almost.Due to improved fluidity of molten, can reduce melt temperature and/or can greatly shorten the whole cycle production cost of injection moulding (reduce) of Shooting Technique.In addition, only need lower injection pressure in the course of processing, therefore required total clamp force for injection moulding is lower, thereby reduces the capital outlay of injection moulding machine.
Except improving Shooting Technique, thermoplastic compounds of the present invention has lower melt viscosity can provide significant advantage in the actual design of molding.For example, can be applied to and produce thin-walled moulded parts, fill up to now level polyester and still can not directly make thin-gage goods with injection moulding.Similarly, though use in existing application through strengthening and can free-pouring polyester (as thermoplastic compounds of the present invention) can reduce wall thickness and therefore alleviate the weight of element.
Thermoplastic compounds of the present invention is applicable to produce fiber, film or the molding of any type, and concrete application is as the shield cap of socket, switch, crust component, outer cover, headlight groove, shower nozzle, accessory, flatiron, turn switch, heater controller, fuel tank cap, door handle, (afterwards) mirror housing, rear window wiper, optical conductor.
The electricity and the electronic installation that use the polyester that improves mobility to make comprise: the circuit carriers of socket, socket element, socket type connector, bunch of cables element, circuit carriers, circuit carriers element, three-dimensional injection molding, electrical connector element, electromechanical integration element, and optoelectronic integration element.
Comprise may applying of automobile interior components: dashboard, lock for steering column, seat element, head rest, central control panel, wheel box element and door accessory; Comprise may applying of automobile external element: door knob, front modulation element, car external mirror element, windshield washer element, windshield washer containment envelope, grid, roof rail, skylight sash and outside car body component.
The possible purposes of the polyester of improvement mobility in kitchen and household field is to produce the element of kitchen article, for example, and frying pan, flatiron, button, and the application in gardening and leisure field, for example, the element of irrigation system or gardening equipment.
In medicine technology field, the improved polyester of mobility means and is easier to produce sucker shell and similar element.
Polymer composition of the present invention can easily change into particle, then melting and be spun into silk, or is directly used in spinning processing.Described polymer composition can be spun into silk for fiber base material, for example clothes, carpet, and need other application of described, and can prepare with conventional polymkeric substance and spinning equipment.As described elsewhere herein, with respect to polyester itself, thermoplastic compounds of the present invention provides new variation in melt viscosity properties.
For purposes of the present invention, term " fiber base material " comprises fiber, yarn, fabric, textiles or the finished product for clothes, home furnishings, carpet and other consumer's goods." fiber base material " is not particularly limited.Fiber base material of the present invention can be " knitting ", " woven " or " nonwoven " base material.Non-woven substrate can comprise such base material, and its fiber is fibrous reticulum or the fibrefill connecting by applying heat, entanglement and/or pressure.
Particularly preferred fiber base material of the present invention comprises fiber, yarn, fabric and carpet.
Described silk can be circular or have other shape, and for example eight hemp nettle shapes, trilateral (delta), sunlight four are penetrated shape (also referred to as sol shape), scalloped ellipse, trilobal, four tubular (quatra-channel), scalloped band shape, band shape, radial etc.They can be solid, hollow or porous, and are preferably solid.
Can prepare various silks according to the present invention.Silk for for example textiles of most of purposes and carpet is typically of a size of at least about 0.5dpf (DENIER/silk, filament denier), and about 35dpf or higher at the most.Monofilament is thicker, is about 10 to about 2000dpf.
Silk of the present invention can have curling, for example, in the situation of bulk long yarn or textured yarn, but for example, in the yarn without curling (partially oriented yarn, spin-drawing yarn or other be without curling yarn, as for those of many non-woven fleeces), also visible advantage of the present invention.
These yarns, long yarn or textured yarn are multifibres yarns.Described yarn (also referred to as " bundle ") preferably comprises at least about 10 monofilament, and be even more preferably at least about 25 monofilament, and typically can comprise approximately 150 monofilament or more at the most, preferably approximately 100 monofilament at the most, more preferably approximately 80 monofilament at the most.The yarn that comprises 34,48,68 or 72 monofilament is common.Total DENIER number of described yarn typically is at least about 5, is preferably at least about 20, and preferably at least about 50, and at the most approximately 1500 or higher, preferably at the most approximately 250.
Described partially oriented yarn, spin-drawing yarn and textured yarn be for the preparation of textile fabric, for example knitting and woven fabric.
Can utilize known technology that bulk filament yarn is made to carpet.Normally, by many yarn twisteds together and at the device of for example autoclave, SUESSEN or
in carry out heat setting type, then tufting is on basic unit's backing.Then apply emulsion adhesive and second layer backing.
Although the present invention is mainly described with regard to multifibres yarn, should understands preferred version described herein and also be applicable to monofilament.Monofilament, for the preparation of many different article, comprises brush (for example, paint brush, toothbrush, beauty treatment brush etc.), fishing line etc.
Without being described in further detail, believing by above-mentioned explanation those skilled in the art and can make full use of the present invention.Therefore, it is only exemplary that following examples are interpreted as, and the restriction to disclosure absolutely not.
embodiment
Numeral after " embodiment (E) " and " comparative example (CE) " shows that compound prepared in which embodiment or comparative example.Embodiment and comparative example are all prepared in the same way and test.Except as otherwise noted, per-cent is weight percent.
Composition for embodiment is shown in Table 1.
Table 1
embodiment 1. preparations poly-(vinylformic acid 4-hydroxyl butyl ester)
Under reduced pressure distill vinylformic acid 4-hydroxyl butyl ester (under 10Pa, steaming in 83 DEG C) to remove impurity.Purified vinylformic acid 4-hydroxyl butyl ester (202g) is added in the 500mL tri-neck round-bottomed flasks of being furnished with mechanical stirrer, and with nitrogen purging 10 minutes.AIBN (0.51g) is added in vinylformic acid 4-hydroxyl butyl ester, then under nitrogen, this mixture is heated to approximately 50 DEG C, continue 7.5 hours.In the time forming the gel of thickness, stop stirring.This mixture is kept 30 minutes at 50 DEG C again, then by its cool overnight.Separate poly-(vinylformic acid 4-hydroxyl butyl ester) and (pHBA), obtain transparent elastic material (165g).The product obtaining is cut into small-particle, and drying under reduced pressure 24 hours at room temperature.
Analyze the product of gained by differential scanning calorimetry (DSC) and thermogravimetry (TGA), result shows that the second-order transition temperature (Tg) that gathers (vinylformic acid 4-hydroxyl butyl ester) is-13 DEG C, and heat decomposition temperature (Td) is 293 DEG C.
embodiment 2. preparations poly-(2-hydroxyethyl methacrylate)
Under reduced pressure distill 2-hydroxyethyl methacrylate (under 10-30Pa, steaming in 80-90 DEG C) to remove impurity.Purified 2-hydroxyethyl methacrylate (206g) and AIBN (0.43g) are added in the 500mL tri-neck round-bottomed flasks of being furnished with mechanical stirrer, and heat these mixtures 6.5 hours in 52 DEG C under nitrogen.After cool overnight, be isolated to 158g poly-(2-hydroxyethyl methacrylate) (pHEMA), it is light yellow solid, is cut into small-particle, and 70 DEG C of drying under reduced pressure 24 hours.
The product going out by DSC and TGA analytical separation, the Tg that result shows to gather (2-hydroxyethyl methacrylate) is 64 DEG C, Td is 292 DEG C.
By gel permeation chromatography, the molecular weight of the pHEMA measuring taking polystyrene as standard.Sample (1mg) is stirred to an angel at 50 DEG C and be dissolved in DMF, before injected sample, refilter and remove insolubles.Result shows that weight-average molecular weight (Mw) is about 30,900,000, and number-average molecular weight (Mn) is about 1,120,000, and Mw/Mn value is about 28.
embodiment 3. preparations poly-(vinylformic acid 2-hydroxy methacrylate)
Under reduced pressure distill vinylformic acid 2-hydroxy methacrylate (under 20-30Pa, steaming in 70 DEG C) to remove impurity.Purified vinylformic acid 2-hydroxy methacrylate (200g) and AIBN (0.4g) are added in the 500mL tri-neck round-bottomed flasks of being furnished with mechanical stirrer, and heat these mixtures 4.5 hours in 50 DEG C under nitrogen.At room temperature, after cool overnight, be isolated to 120g poly-(vinylformic acid 2-hydroxy methacrylate) (pHEA), it is transparent elastic material.Isolated product is cut into small-particle, and 65 DEG C of drying under reduced pressure 24 hours.
By the product of DSC and TGA analytical separation, result shows that the Tg that gathers (vinylformic acid 2-hydroxy methacrylate) is-15 DEG C, and Td is 436 DEG C.
From embodiment 1-3, the Td of the homopolymer of each hydroxyl of synthesized higher than the typical process temperature of polyester (, be 240-270 DEG C for PTT and PBT), therefore, the homopolymer of these hydroxyls would not be degraded under common processing conditions.
According to table 2, the group component that 4-6 is listed, by the correspondent composition of following batch mixing step acquisition embodiment 4-22 and comparative example 1-5, then carries out general molding step, finally measures according to universal testing method respectively.
the mixing step of embodiment 4-22 and comparative example 1-5
Before batch mixing, PTT particle is placed in and forces dehumidified air circulation baking oven, 130 DEG C are dried approximately 6 hours.
A) for PTT and pHBA
According to table 2, add twin screw extruder (Eurolab16) to obtain the corresponding thermoplastic compounds of particle form each embodiment or comparative example's composition.
For the forcing machine with 10 heating module structures, the Temperature Setting of forcing machine is 180/225/230/240/240/240/240/240/240/240 DEG C.Die head temperature is 240 DEG C, and screw speed is 350rpm, and throughput is 3.5Kg/ hour.
B) for PTT and pHEMA
According to table 4, add twin screw extruder (Eurolab16) to obtain the corresponding thermoplastic compounds of particle form each embodiment or comparative example's composition.
For the forcing machine with 10 heating module structures, the Temperature Setting of forcing machine is 160/235/250/250/245/240/240/230/230/225 DEG C.Die head temperature is 225 DEG C, and screw speed is 320rpm, and throughput is 3.8Kg/ hour.
C) for PTT and pHEA
According to table 5, add twin screw extruder (Toshiba37) to obtain the corresponding thermoplastic compounds of particle form each embodiment or comparative example's composition.
For the forcing machine with 6 heating module structures, the Temperature Setting of forcing machine is 180/240/240/240/240/220 DEG C.Die head temperature is 220 DEG C, and screw speed is 250rpm, and throughput is 20Kg/ hour.
D) for PTT and pHBA
According to table 6, add twin screw extruder (Toshiba37) to obtain the corresponding thermoplastic compounds of particle form each embodiment or comparative example's composition.
For the forcing machine with 6 heating module structures, the Temperature Setting of forcing machine is 110/240/240/240/240/230 DEG C.Die head temperature is 230 DEG C, and screw speed is 250rpm, and throughput is 20Kg/ hour.
general molding step
By the particle drying of extruding to moisture content lower than 40ppm, then molding.For test mechanical performance, at Sumitomo 100Ton molding forming machine (screw diameter 32mm; Nozzle diameter 5mm) upper, prepare multiduty test bars according to ISO3167.It is 80 DEG C that barrel zone temperature is set as 250 DEG C and die temperature.The basic configuration of multi-usage test bars is dumb-bell shape, long 150mm, and stage casing is of a size of wide 10mm, thick 4mm, long 80mm.
universal testing method
In dry nitrogen atmosphere, carry out dsc (DSC) by TA Q100 differential scanning calorimeter.First sample is heated to 280 DEG C and remain on this temperature 3 minutes to remove thermal history, then quenching to 0 DEG C.The heating rate that the composition of all tests is adopted is 10 DEG C/min, carries out the 2nd time and heats and collect the data that this takes turns.Tg is second-order transition temperature; Tm is fusing point; And Tc is Tc, it is by observation with the rate of cooling of 10 DEG C/min, and the temperature that produces exothermic maximum amount (thermal discharge crystallisation process) part for the 2nd time when cooling from 280 DEG C of melt temperatures is determined.
In dry nitrogen and air atmosphere, carry out thermogravimetry analysis (TGA) with TA Q500 instrument.Utilize under nitrogen atmosphere the thermostability of carrying out detection example composition at the isothermal TGA of 270 DEG C and 280 DEG C and the non-isothermal TGA under air atmosphere.Td is heat decomposition temperature, is temperature corresponding to the tangent line at weight-loss curve slope maximum point place and the horizontal extension line intersection point of initial experimental phase baseline institute.
Molecular weight is to measure by Size Exclusion Chromatograph SEC method (SEC).On the instrument of the Alliance 2690TM type purchased from WatersCorporation (Milford, MA), analyze, it is furnished with Waters 414
tMdifferential refractive index detector (DRI), the DAWN 8+ type multi-angle light scattering detector of Wyatt Technologies (Santa Barbara, CA), and differential capillary viscosimeter detector ViscoStar.For separating of chromatographic column comprise two Shodex GPC HFIP-806M posts and a Shodex GPC HFIP-804M.Moving phase is the HFIP (HFIP) that contains 0.01M sodium trifluoroacetate.At 50 DEG C, appropriateness is dissolved in mobile phase solvent by sample under stirring, at 35 DEG C of flow velocity wash-outs with 0.5mL/min.Mn is number-average molecular weight; Mw is weight-average molecular weight; With Mz be z average molecular weight.
Test and the method for calculation of the limiting viscosity (IV) of sample are as follows:
Use black formula viscosity tube 1C, taking mass ratio as the phenol/tetrachloroethane of 1: 1 is as solvent, test at 30 DEG C.First test solvent flows out the time of black formula viscosity tube at 30 DEG C, is designated as t
0(repeat 3 times, average), the solution that the polymer samples of then testing 1.0% (wt/vol) concentration is dissolved in solvent flows out the time of black formula viscosity tube at 30 DEG C, is designated as t
1; Each sample test 5 times, gets the rear mean value of measuring for 3 times.The limiting viscosity of sample is calculated according to following formula:
η
sp＝η
r-1
In formula:
C: sample solution concentration, g/dL
η
r: relative viscosity
η
sp: specific viscosity
[η]: limiting viscosity, dL/g
T
0: the solvent elution time, second
T
1: sample solution flows out the time, second
By Dynic LCR7001 capillary rheometer determining melt viscosity.In test process, make dry granules through capillary rheometer, evaluate shear viscosity by shearing rate and shearing force.The fusion time of all samples is 240 seconds.
According to ISO527:1993 (E), on general purpose material test machine Instron 5567, measure mechanical property as maximum tensile stress, tensile break stress and tension fracture strain.
According to ISO178:2001 (E), on general purpose material test machine Instron 5567, test flexural property.
According to ISO179, on CEAST shock-testing machine, test N-card Charpy.
In following examples, further limit embodiment of the present invention.Embodiment (E) and comparative example's (C) composition and evaluation result are shown in table 2-6.
The polymer blend that table 2. comprises pHBA
By apparent the following stated of result of table 2.
From the contrast between embodiment 4-11 and comparative example 1, respectively by thermoplastic compounds that the polyester (being PTT) of the homopolymer of the hydroxyl of 0.10 % by weight to 5.00 % by weight (being pHBA) and 99.90 % by weight to 95.00 % by weight is obtained by mixing reducing significantly melt viscosity simultaneously, still keep good thermostability and mechanical property.
In addition, embodiment 4-11 has similar inherent viscosity with comparative example 1, and this molecular weight that shows composition of the present invention does not reduce substantially.
In addition, from Tg, Tc, Tm and Td Data Comparison between embodiment 4-11 and comparative example 1, thermoplastic compounds of the present invention presents significant melt viscosity to be reduced, and Tg, Tc, Tm and Td's is several unchanged.The result of thermal property shows that thermoplastic compounds of the present invention has good thermostability.
Concrete mechanical property and the melt viscosity required according to application, those skilled in the art can select the homopolymer of appropriate hydroxyl to mix effectively to reduce melt viscosity with polyester.For example,, at 250 DEG C, shearing rate 1000s
-1under, its crucial mechanical property is while trying to achieve the balance of flexural stress and fluidity of molten, the available component proportion as embodiment 7 makes its melt viscosity reduce approximately 50%, and still possesses 97% physical strength by flexural stress data representation.
In another embodiment, embodiment 4 shows at 250 DEG C of shearing rate 100s
-1lower melt viscosity reduces by 18%; Under identical processing conditions, in the time needing the melt viscosity of PTT (with listed identical material in table 2) to reduce by 10%, the suitable amount of the homopolymer of described hydroxyl should be lower than 0.10 % by weight.
Table 3
As summed up in table 3, poly-(the vinylformic acid 4-hydroxyl butyl ester) and the thermoplastic compounds (embodiment 8) of PTT that comprise 1.00 % by weight are prepared, and according to the standard operation for molecular weight determination, Mn, Mw and Mz are measured by size exclusion chromatography.
Embodiment 8 and comparative example's 1 Mn, Mw and Mz data are contrasted, only observe Mn and slightly reduce slightly increasing of (< 1%) and Mw (< 1%) and Mz (approximately 5%).Therefore, molecular weight data there is no significant difference, and this molecular weight that shows composition of the present invention does not reduce substantially.Also conform to characteristic viscosity determining conclusion (referring to table 2) according to molecular weight data contrast conclusion.
The polymer blend that table 4 comprises pHEMA
By apparent the following stated of result of table 4.
From the contrast between embodiment 12-19 and comparative example 2, reduce significantly melt viscosity by the thermoplastic compounds that the polyester (being PTT) of the homopolymer of the hydroxyl of 0.10 % by weight to 5.00 % by weight (being pHEMA) and 99.90 % by weight to 95.00 % by weight is obtained by mixing respectively, and there is good thermostability (from the essentially no variation of Tg, Tc, Tm and Td), be close to molecular degradation (from similar limiting viscosity data) and good mechanical property mechanical property mechanical property in nothing.
The polymer blend that table 5. comprises pHEA
By apparent the following stated of result of table 5.
From the contrast between embodiment 20-21 and comparative example 3, respectively by the homopolymer of the hydroxyl of 0.50 % by weight, 1.00 % by weight (poly-(vinylformic acid 2-hydroxy methacrylate)) and polyester (the being PTT) thermoplastic compounds being obtained by mixing are had to the melt viscosity of reduction, and there is good thermostability (from the essentially no variation of Tg, Tm and Td), be close to molecular degradation (from similar limiting viscosity data) and good mechanical property in nothing.
The polymer blend that table 6. comprises pHBA
By apparent the following stated of result of table 6.
From embodiment 22 and comparative example 5 and with reference to comparative example 4 contrast, respectively by the thermoplastic compounds that the tetramethylolmethane of the homopolymer of the hydroxyl of polyester (being PTT) and 0.50 % by weight (i.e. poly-(vinylformic acid 4-hydroxyl butyl ester)) or 0.50 % by weight is obtained by mixing, embodiment 22 has more significant melt viscosity to be reduced, and there is good thermostability (by its Tg, Tm compares comparative example 4 the variation of respective value with Td less visible), less molecular degradation (from the limiting viscosity data that are similar to) and similar mechanical property.
Although set forth and illustrated the present invention in typical embodiment, details shown in being not intended to be limited to, because various adjustment and replacement are possible in the situation that not deviating from spirit of the present invention.Therefore, only, by normal experiment, those skilled in the art may expect various variants and the equivalents of invention disclosed herein, and all these type of variants and equivalents should be thought to be included in the spirit and scope of the present invention defined by the following claims.
Claims (9)
1. have the thermoplastic compounds that improves mobility, it comprises:
The polyester of 99.99 % by weight to 95.00 % by weight, and
The homopolymer of the hydroxyl of 0.01 % by weight to 5.00 % by weight, the homopolymer of described hydroxyl is to be obtained through polymerization by the ethylene linkage unsaturated monomer of hydroxyl,
Wherein
Described polyester is Poly(Trimethylene Terephthalate) homopolymer or Poly(Trimethylene Terephthalate) multipolymer, and it comprises 70 % by weight or more Poly(Trimethylene Terephthalate);
The ethylene linkage unsaturated monomer of described hydroxyl has formula CH
2=C (R
1) CO
2r
2, wherein R
1h or C
1-C
6alkyl, and R
2the C being replaced by least one hydroxyl
1-C
8alkyl; With
Described % by weight is the gross weight based on described thermoplastic compounds.
2. the thermoplastic compounds of claim 1, the ethylene linkage unsaturated monomer of wherein said hydroxyl has formula CH
2=C (R
1) CO
2r
2, wherein R
1h, methyl or ethyl, and R
2the C being replaced by least one hydroxyl
1-C
4alkyl.
3. the thermoplastic compounds of claim 2, the ethylene linkage unsaturated monomer of wherein said hydroxyl is: vinylformic acid 2-hydroxy methacrylate, vinylformic acid 3-hydroxy propyl ester, vinylformic acid 4-hydroxyl butyl ester, 2-hydroxyethyl methacrylate, methacrylic acid 3-hydroxy propyl ester or methacrylic acid 4-hydroxyl butyl ester.
4. the thermoplastic compounds of claim 1, it also comprises at least one additive, and described additive is selected from: antioxidant, thermo-stabilizer, UV light stabilizing agent, the tinting material that comprises dyestuff and pigment, lubricant, hydrolysis-resisting agent, releasing agent and fire retardant.
5. moulded parts, it comprises the arbitrary composition of claim 1 – 4 or is made by said composition.
6. fiber base material, it comprises the arbitrary composition of claim 1 – 4 or is made by said composition.
7. the fiber base material of claim 6, described base material is fiber, yarn or fabric.
8. the fiber base material of claim 6, described base material is carpet.
9. improve the method for the mobility of polymer blend, it comprises: the polyester of 99.99 % by weight to 95.00 % by weight is mixed with the homopolymer of the hydroxyl of 0.01 % by weight to 5.00 % by weight, the homopolymer of described hydroxyl is obtained through polymerization by the ethylene linkage unsaturated monomer of hydroxyl
Wherein
Described polyester is Poly(Trimethylene Terephthalate) homopolymer or Poly(Trimethylene Terephthalate) multipolymer, and it comprises 70 % by weight or more Poly(Trimethylene Terephthalate);
The ethylene linkage unsaturated monomer of described hydroxyl has formula CH
2=C (R
1) CO
2r
2, wherein R
1h or C
1-C
6alkyl, and R
2the C being replaced by least one hydroxyl
1-C
8alkyl; With
Described % by weight is the gross weight based on described polymer blend.
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| CN1476461A (en) * | 2000-11-20 | 2004-02-18 | �ɿڿ��ֹ�˾ | Method to increase crystallization of polyesters |
| CN101679728A (en) * | 2007-04-06 | 2010-03-24 | 沙伯基础创新塑料知识产权有限公司 | Polyester compositions, method of manufacture, and uses thereof |
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| CN1476461A (en) * | 2000-11-20 | 2004-02-18 | �ɿڿ��ֹ�˾ | Method to increase crystallization of polyesters |
| CN101679728A (en) * | 2007-04-06 | 2010-03-24 | 沙伯基础创新塑料知识产权有限公司 | Polyester compositions, method of manufacture, and uses thereof |
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