CN102485793A - Thermoplastic composition possessing improved melt fluidity - Google Patents
Thermoplastic composition possessing improved melt fluidity Download PDFInfo
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- CN102485793A CN102485793A CN2010105771229A CN201010577122A CN102485793A CN 102485793 A CN102485793 A CN 102485793A CN 2010105771229 A CN2010105771229 A CN 2010105771229A CN 201010577122 A CN201010577122 A CN 201010577122A CN 102485793 A CN102485793 A CN 102485793A
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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 the polymer compsn field, relate to the thermoplastic compounds that contains polyester particularly.Said compsn has improved fluidity of molten, good thermostability and mechanical property.The invention still further relates to the preparation method and the application of said thermoplastic compounds.
Background technology
Polyester is a base polymer that in its main chain, contains ester functional group.The polyester of knowing of behaving most is a poly terephthalic acid alkylidene group diester class, comprises polyethylene terephthalate (PET), PTT (PTT) and polybutylene terephthalate (PBT).Polyester often is applied to various products such as fibre product, packing film, extrudate or element.
Normally select polyester or polyester mixture to concrete application by desired chemical property, physical properties and mechanical property.But present industry trends is the said material of High-speed machining and produces complicacy and have the long-pending delicate elements of small cross section.Therefore, the flowability of polyester becomes the important factor relevant with processibility.
Be higher than required melt viscosity if selected polyester or its mixture have, a kind of way is to improve processing temperature to reduce melt viscosity.Unfortunately higher processing temperature often causes more polymer degradation.
Known adding melt flow promotor (or melt viscosity-depression agent) can be reduced the melt viscosity of polymer blend.Reported that low-molecular-weight flow improver additive such as polyalcohols are to the effective melt flow promotor of polyester, yet 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 possibly follow the unfavorable variation of mechanical property.Japanese Patent discloses JP10-310690 number and has disclosed the tetramethylolmethane, 1,1 that in polybutylene terephthalate, uses 0.1%-5%, 1-three (methylol) ethane or 1,1, and 1-three (methylol) propane promotes fluidity of molten.Wherein do not disclose these and promote of the influence of mobile additives other composition in other The properties of matrix resin and the said prescription.
The PCT patent discloses the hyperbranched Copolycarbonate of having described for WO2006/050858 number through using 1%-2% and reduces the melt viscosity of polybutylene terephthalate compsn and keep mechanical property.
USP discloses have been described the PTT compsn for US2009/0192266 number and can mix with the nucleator of 0.005%-1% earlier and produce first kind of mixture; This mixture mixes with the ethylene-methyl acrylate multipolymer of 3%-15% and produces second kind of mixture then; The melt viscosity of said second kind of mixture reduces at least 10% than the melt viscosity of first kind of mixture, and its number-average molecular weight is 75% of first kind of mixture at least.
But the consumption of these multipolymers is high, and starting material are costliness and preparation process complicacy rather.
Derived from the ethylene linkage unsaturated monomer of the hydroxyl for example homopolymer or the multipolymer of vinylformic acid hydroxyalkyl acrylate or methylacrylic acid hydroxyl alkyl ester, be known as biocompatible polyacrylic ester or synthetic water gel.For example, gather (2-hydroxyethyl methacrylate) and be widely used in soft contact lenses, perhaps be used for medicine equipment as the hydrophilic medical pressure sensitive adhesive.
USP US5 has described the multipolymer that will comprise the methacrylic ester that has hydroxy functional group etc. for 391, No. 620 and has reduced the overflow on the vertical surface of brushing as the rheology modifier (being thickening material) of coating.
USP US6, the multi-functional nucleator of having described significant quantity for 319, No. 576 is used for polyester.In 6 embodiment, demonstrate the Tc (Tc) that is higher than the compsn that does not contain said nucleator significantly with 0.4% (methylacrylic acid hydroxyl ethyl ester) the blended PET that gathers, this has shown the validity of said nucleator accelerate crystallisation.
The present invention provides the novel method of using the polymer-type flow improver additive, and said flow improver additive is preparation and more cheap than hyperbranched Copolycarbonate or ethylene-acrylate copolymer easily.And the polymer blend that comprises the said polymer-type flow improver additive of 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 made up of mixture basically, and perhaps it is made by mixture, and said mixture comprises
About 99.99 weight % to the polyester of about 95.00 weight % and
About 0.01 weight % is to the homopolymer of the hydroxyl of about 5.00 weight %, and the homopolymer of said hydroxyl is that the ethylene linkage unsaturated monomer by hydroxyl gets through polymerization, and wherein said weight % is based on the gross weight of said thermoplastic compounds; And condition is: when said polyester was polyethylene terephthalate (PET), then the ethylene linkage unsaturated monomer of said hydroxyl was not a 2-hydroxyethyl methacrylate.
In one embodiment, in thermoplastic compounds of the present invention, said polyester is selected from: polyethylene terephthalate, PTT, polybutylene terephthalate and composition thereof.
In one embodiment, in thermoplastic compounds of the present invention, said polyester is PTT homopolymer or PTT multipolymer, and it comprises 70 weight % or more PTT.
In one embodiment, in thermoplastic compounds of the present invention, the ethylene linkage unsaturated monomer of said hydroxyl has formula CH
2=C (R
1) CO
2R
2, R wherein
1Be H or C
1-C
6Alkyl, and R
2By the substituted C of at least one hydroxyl
1-C
8Alkyl.
In one embodiment, in thermoplastic compounds of the present invention, the ethylene linkage unsaturated monomer of said hydroxyl has formula CH
2=C (R
1) CO
2R
2, R wherein
1Be H, methyl or ethyl, and R
2By the substituted C of at least one hydroxyl
1-C
4Alkyl.
In one embodiment; In thermoplastic compounds of the present invention, the ethylene linkage unsaturated monomer of said hydroxyl is: vinylformic acid 2-hydroxy methacrylate, vinylformic acid 3-hydroxy propyl ester, vinylformic acid 4-hydroxyl butyl ester, 2-hydroxyethyl methacrylate, methylacrylic acid 3-hydroxy propyl ester or methylacrylic acid 4-hydroxyl butyl ester.
In one embodiment; Thermoplastic compounds of the present invention also comprises at least a additive, and said additive is selected from: inhibitor, thermo-stabilizer, UV light stabilizing agent, the tinting material that comprises dyestuff and pigment, lubricant, hydrolysis-resisting agent, releasing agent and fire retardant.
The invention still further relates to moulded parts, it comprises above-mentioned compsn, is made up of above-mentioned compsn basically, is perhaps made by above-mentioned compsn.The invention still further relates to the purposes of said 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 compsn, is made up of above-mentioned compsn basically, is perhaps made by above-mentioned compsn.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 flowability of polymer blend; It comprises: the polyester of 99.99 weight % to 95.00 weight % is mixed with the homopolymer of the hydroxyl of 0.01 weight % to 5.00 weight %; The homopolymer of said hydroxyl is got through polymerization by the ethylene linkage unsaturated monomer of hydroxyl, and wherein said weight % is based on the gross weight of said 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, include all publications, patented claim, patent and other reference that this paper mentions in this paper by reference clearly in full, general as detailing fully.
Only if definition in addition, all technology and the scientific terminology of this paper use has the identical implication with one of ordinary skill in the art's common sense of the present invention.If there is contradiction, then to comprise that this specification sheets in being defined in is main.
Unless otherwise indicated, all per-cent, umber, ratio etc. all are by weight.
The term that this paper uses " by ... process " and " comprising " synonym.The term that this paper uses " comprises ", " comprising ", " containing ", " having " or its any other variant, is intended to contain nonexcludability and comprises.For example; The compsn, technology, 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, perhaps so compsn, technology, method, goods or device institute other key element of inherent.
Term " by ... form " do not comprise any unspecified key element, step or composition.If in claim, this type of term means said claim and does not comprise the material except cited those, but comprises common relative impurity.When term " by ... form " appear in the subordinate clause of claim main body, rather than follow preamble closely, then it only limits the key element of enumerating in this subordinate clause; Other key element then is not excluded outside said claim as a whole.
Term " basically by ... form " be used for limiting such compsn, method or device; It is except comprising literal the above those; Also comprise other material, step, characteristic, component or key element, to be these other materials, step, characteristic, component or key element do not produce substantial influence to the basic of the invention of asking for protection with novel characteristics to condition.Term " basically by ... form " scope that contained is between between " comprising " and " by ... composition ".
Term " comprise " be intended to comprise by term " basically by ... form " embodiment that contained with " by ... composition ".Similarly, term " basically by ... form " be intended to comprise by term " by ... form " embodiment that contained.
When content, concentration or other numerical value or parameter provide with the forms of codomain, preferred codomain or a series of big preferred values and less preferred value; This is interpreted as; Disclose all codomains that formed by any logarithmic value (being made up of with any lower limit or less preferred value any upper limit or big preferred value) particularly, no matter whether codomain is open separately.For example, when enumerating codomain " 1 to 5 ", said 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 value territory part among this paper, said codomain is intended to comprise its endpoint value, and all integers and mark in this codomain.
When term " about " was used to describe the endpoint value of numerical value or codomain, this openly was understood to include the occurrence or the endpoint value of indication.
In addition, only if opposite clearly statement, " perhaps (or) " is meant " perhaps (or) " of comprising property, but not removing property " perhaps (or) ".For example, below each A that satisfies condition " or " B:A 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 is very (or existence) with B.
In addition, the indefinite article before key element of the present invention or the composition " once " instance (i.e. existence) quantity that means said key element or composition with " a kind of " is nonrestrictive.Therefore " one " or " one " are understood to include one or at least one, and the singulative of said key element or composition also comprises its plural number, only if its quantity should be odd number significantly.
In specification sheets of the present invention and/or claims, term " homopolymer " is meant the polymkeric substance that is got by a kind of monomer polymerization; " multipolymer " be meant by two or more monomer polymerizations and polymkeric substance.This analog copolymer comprises copolymer, terpolymer or multiple copolymer.
When describing some polymkeric substance, should understand applicant sometimes and represent polymkeric substance through the monomeric quantity that is used to prepare the monomer of polymkeric substance or is used to prepare polymkeric substance.And so description possibly not comprise the concrete name that is used to describe final polymkeric substance; Perhaps possibly not have " by ... the product that method makes " such qualification; The statement of any this type of monomer and quantity should be interpreted as and mean the said monomer that said polymkeric substance comprises those monomers (being those monomeric copolymerization units) or said amount, with and corresponding polymer and compsn.
In foregoing, term " alkyl " uses separately or is used for compound word like " hydroxyalkyl ", comprises alkyl straight chain or side chain, for example, and methyl, ethyl, n-propyl, sec.-propyl or different butyl, amyl group or hexyl isomer." hydroxyalkyl " expression has a substituted alkyl group of hydroxyl at least.
The total number of carbon atoms in the substituted radical is by " Ci-Cj " prefix designates, and wherein i and j are the integers of 1-8.
The material of this paper, method and embodiment only are exemplary, and unless stated otherwise, should not be construed as restrictive.This paper has only described method and the material that is fit to, though implementing or test can be used and those similar or equivalent method and materials as herein described when of the present invention.
Details are as follows in the present invention.
Polyester
According to the present invention, said polyester comprise by pure and mild dicarboxylicacid (comprising its ester) through esterification or transesterification reaction and any polycondensation product.
The instance of said alcohol comprises having 2 glycol to about 10 carbon atoms, terepthaloyl moietie, 1 for example, 2-Ucar 35,1; Ammediol, 1,3 butylene glycol, 1,4-butyleneglycol, 1; 5-pentanediol, NSC 6366,1,6-pinakon, glycol ether, triglycol, polyoxyethylene glycol, 1,2-cyclohexanedimethanol, 1; 3-cyclohexanedimethanol and 1,4 cyclohexane dimethanol, and (for example gather (tetramethylene ether) glycol than two pure and mild polyvalent alcohols of long-chain; They are reaction product of glycol or polyvalent alcohol and olefinic oxide), perhaps its two or more combination.
The instance of said dicarboxylicacid 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, the 12-dodecanedioic acid, with and dimethyl ester, diethyl ester, the dipropyl of verivate such as these dicarboxylicacid, or its two or more combination.
Said polyester can be homopolymer or multipolymer.When using said multipolymer, the copolymerization that constitutes said multipolymer can be aromatic dicarboxylic acid such as terephthalic acid, phthalic acid, 2 with the dicarboxylicacid composition, the 6-naphthalic acid; Aliphatic dicarboxylic acid such as hexanodioic acid, nonane diacid, sebacic acid and 1, the 12-dodecanedioic acid.The instance of said diol component comprises aliphatic diol such as terepthaloyl moietie, 1,2-Ucar 35,1, ammediol, 1,4-butyleneglycol, NSC 6366 and 1,6-pinakon; With alicyclic diol such as 1,4 cyclohexane dimethanol.These compounds can use individually, perhaps use with the form of mixtures of two or more compounds.
According to the present invention, one of preferred polyester that is used for said thermoplastic compounds is selected from: polyethylene terephthalate (PET), PTT (PTT), polybutylene terephthalate (PBT) and composition thereof.
PET is the polyester that is made through polycondensation (or transesterify) by terepthaloyl moietie and terephthalic acid (or DMT. Dimethyl p-benzenedicarboxylate).Said PET can be PET homopolymer or multipolymer, and it preferably comprises 70 weight % or more polyethyleneterephthalate, or its mixture.These can come modification with the polyester that is made by other glycol or diacid of 30 weight % at the most.Preferred polyester is the PET homopolymer.It should be noted that in thermoplastic compounds of the present invention when said polyester was polyethylene terephthalate (PET), then the ethylene linkage unsaturated monomer of said hydroxyl was not a 2-hydroxyethyl methacrylate.
PTT is can be by 1, the polyester that ammediol and terephthalic acid (or DMT. Dimethyl p-benzenedicarboxylate) make through polycondensation (or transesterify).Be used to prepare 1 of said PTT, ammediol preferably obtains (" getting through biological method " 1, ammediol) from renewable source through biochemical method.Said PTT can be homopolymer or multipolymer, and it preferably comprises 70 weight % or more PTT, or its mixture.These can come modification with the polyester that is made by other glycol or diacid of 30 weight % at the most.
According to the present invention, one of preferred polyester that is used for said thermoplastic compounds is selected from: PTT homopolymer or PTT multipolymer, it comprises 70 weight % or more PTT.Preferred polyester is the PTT homopolymer.
PBT is can be by 1, and 4-butyleneglycol and terephthalic acid (or DMT. Dimethyl p-benzenedicarboxylate) are through the polyester of polycondensation (or transesterify) preparation.Said PBT can be homopolymer or multipolymer, and it preferably comprises 70 weight % or more PBT, or its mixture.These can come modification with the polyester that is made by other glycol or diacid of 30 weight % at the most.Preferred polyester is the PBT homopolymer.
Because polyester and preparation method thereof is known to those skilled in the art, the application will not give unnecessary details this.
Limiting viscosity (IV) is to weigh the mode of the molecular weight of polymkeric substance.Limiting viscosity increases and increases along with polymericular weight usually, but the type, its shape or the conformation that also depend on polymkeric substance with and measure used solvent.
The limiting viscosity that is used for polyester of the present invention does not receive special restriction, as long as said 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, more preferably is at least about 0.9dL/g, and most preferably is at least about 1.0dL/g.The preferably about at the most 2.0dL/g of the limiting viscosity of polymer blend of the present invention, more preferably about at the most 1.5dL/g, most preferably about at the most 1.2dL/g.
In one embodiment, in thermoplastic compounds of the present invention, said 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, said 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, said polyester is that PBT and its limiting viscosity are about 0.8-2.0dL/g.
The polyester that is fit to can be selected from commercial brand for example
PET,
PBT of BASF;
PET of DuPont,
PTT,
PBT;
PET of Invista; And
Toray Industries of SK Chemicals,
PBT of Inc.
The amount that is used for the polyester of compsn of the present invention is that about 95.00 weight % of said composition total weight are to about 99.99 weight %; The about 97.00 weight % that more preferably are said composition total weight are to about 99.95 weight %, and the about 99.00 weight % that are most preferably said composition total weight are to about 99.90 weight %.
Melt flow promotor
The homopolymer that in thermoplastic compounds of the present invention, is used as the hydroxyl of melt flow promotor is that the ethylene linkage unsaturated monomer by hydroxyl gets through polymerization.
The instance of the ethylene linkage unsaturated monomer of hydroxyl is: the 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; Methylacrylic acid hydroxyl alkyl ester; For example; 2-hydroxyethyl methacrylate, methylacrylic acid 2-hydroxy propyl ester, methylacrylic acid 3-hydroxy propyl ester, methylacrylic acid 2,3-dihydroxyl propyl ester, methylacrylic acid 4-hydroxyl butyl ester, the own ester of methylacrylic acid hydroxyl, methylacrylic acid hydroxyl monooctyl ester; The 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-butylene; Suitable-butene dioic acid hydroxyalkyl acrylate alkyl ester and anti--butene dioic acid hydroxyalkyl acrylate alkyl ester; For example; Suitable-butene dioic acid 2-hydroxy methacrylate isopropyl ester, suitable-butene dioic acid butyl ester 2-hydroxy methacrylate, anti--butene dioic acid butyl ester 2-hydroxy methacrylate, suitable-butene dioic acid butyl ester 3-hydroxy propyl ester and anti--butene dioic acid butyl ester 3-hydroxy propyl ester etc.。
Consider commercial availability, the ethylene linkage unsaturated monomer of said hydroxyl preferably has formula CH
2=C (R
1) CO
2R
2, R wherein
1Be H or C
1-C
6Alkyl, and R
2By the substituted C of at least one hydroxyl
1-C
8Alkyl.More preferably, said monomer has formula CH
2=C (R
1) CO
2R
2, R wherein
1Be H, methyl or ethyl, and R
2By the substituted C of at least one hydroxyl
1-C
4Alkyl.
In one embodiment, in thermoplastic compounds of the present invention, the ethylene linkage unsaturated monomer of said hydroxyl is that (the ethylene linkage unsaturated monomer that is said hydroxyl has formula CH for vinylformic acid hydroxyalkyl acrylate or methylacrylic acid hydroxyl alkyl ester
2=C (R
1) CO
2R
2, R wherein
1Be H or methyl).
In another embodiment; In thermoplastic compounds of the present invention; The ethylene linkage unsaturated monomer of said hydroxyl is vinylformic acid 2-hydroxy methacrylate, vinylformic acid 3-hydroxy propyl ester, vinylformic acid 4-hydroxyl butyl ester, 2-hydroxyethyl methacrylate, methylacrylic acid 3-hydroxy propyl ester, perhaps methylacrylic acid 4-hydroxyl butyl ester.
It should be noted that in thermoplastic compounds of the present invention when the ethylene linkage unsaturated monomer of said hydroxyl was 2-hydroxyethyl methacrylate, then said polyester was not polyethylene terephthalate (PET).
The homopolymer of said hydroxyl can be through any appropriate means preparation.The instance of said polymerization method comprises: mass polymerization, solution polymerization, suspension polymerization or letex polymerization.The polymerization method that uses depends on the amount of required polymkeric substance and the character of the final product that desire prepares.
Polymerization temperature and polymerization time change with employed monomeric kind.For example, it is 0.5-20 hour that polymerization temperature is preferably 0-150 ℃ and polymerization time, and more preferably polymerization temperature is that 40-100 ℃ and polymerization time are 2-10 hour.
If need use solvent during polymerization, to the not special restriction of said polymer solvent, for example, toluene, YLENE, ethylbenzene, methyl ethyl ketone, MIBK, THF and N, dinethylformamide.These solvents can only use a kind of, perhaps can two or more solvent combinations use.When the boiling point of said solvent was too high, then the residual volatile matter content of the homopolymer of the hydroxyl of final gained uprised, and therefore preferred boiling point is 50-200 ℃ a solvent.
When polyreaction, can add polymerization starter as required.Said polymerization starter does not receive special restriction; And suitable has; For example, organo-peroxide, for example; Isopropyl benzene hydroperoxide, diisopropyl benzene hydrogen peroxide, ditertiary butyl peroxide, lauroyl peroxide, Lucidol, 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, the 4-methyl pentane nitrile).These polymerization starters can only use a kind of, perhaps can two or more polymerization starter combinations use.The amount of said polymerization starter can be confirmed arbitrarily according to the combination of monomer and reaction conditions, not special restriction.
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 said hydroxyl is processed smoothly.
The homopolymer of the said hydroxyl of explanation of giving an example is with the bulk polymerization preparation and get by the ethylene linkage unsaturated monomer of hydroxyl.The polymerization degree of the homopolymer that is made by bulk polymerization is about 10 usually
3-10
5, so 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 said hydroxyl usually can be by the polymerization starter (based on said monomeric weight) of the ethylene linkage unsaturated monomer of above-mentioned hydroxyl and 0.1 weight %-0.5 weight % in the popular response container; Under the high temperature (for example; About 40-100 ℃), react polymerization in 2-10 hour and make.
The molecular-weight average of the homopolymer of said hydroxyl is preferably 100,000-50, and 000,000, more preferably be 500,000-25,000,000, even more preferably be 800,000-15,000,000, and particularly preferably be 1,500,000-5,000,000.
In one embodiment, in thermoplastic compounds of the present invention, the molecular-weight average of the homopolymer of said hydroxyl is 100,000-50,000; 000, more preferably be 500,000-25,000,000; Even more preferably be 800,000-15,000,000, and particularly preferably be 1; 500,000-5,000,000.
For the homopolymer as the hydroxyl of flow ability modifying agent, it preferably has the degradation temperature (Td) of the typical process temperature that is higher than polyester, during melting mixing processing, degrades avoiding.For example, the processing temperature of PTT and PBT is about 240-270 ℃, and the processing temperature of PET is about 280-295 ℃.
In one embodiment, in thermoplastic compounds of the present invention, the degradation temperature of the homopolymer of said hydroxyl (Td) is at least about 270 ℃, is preferably at least about 290 ℃, and more preferably is at least about 300 ℃.
The consumption of the homopolymer of said hydroxyl is that about 0.01 weight % is to about 5.00 weight %; Be preferably about 0.05 weight % to about 3.00 weight %; More preferably about 0.1 weight % is to about 1.00 weight %, and wherein said weight percent is based on the gross weight of said thermoplastic compounds.When the amount of the homopolymer of said hydroxyl is about 0.01 weight %, can observe mobile the improvement and the favorable mechanical performance.When its amount surpassed 5.0 weight %, the mechanical property of said thermoplastic compounds received negative impact.
Other additive
Compsn of the present invention can also comprise the commonly used and known additive of polymer arts of a spot of optional existence.The instance of additive comprises without limitation: inhibitor, thermo-stabilizer, UV light stabilizing agent, the tinting material that comprises dyestuff and pigment, lubricant, hydrolysis-resisting agent, releasing agent and fire retardant.The content of these additives in said compsn usually can for about 0.01 weight % to about 15 weight %; Be preferably about 0.01 weight % to about 10 weight %; Basic and the novel characteristics of said compsn as long as they do not detract, and the performance of said compsn do not had significant disadvantageous effect.
The present invention perhaps improves its melt flow characteristics by means of the melt viscosity that is used for reducing the thermoplastic compounds that comprises polyester that makes of the homopolymer of said hydroxyl.Therefore, the present invention has instructed the homopolymer (it contains the great amount of hydroxy group that is connected on the main polymer chain) with hydroxyl to mix in the thermoplastic compounds.
The preparation of blend polymer and character
Thermoplastic compounds of the present invention can make through technology known in the art.Said composition and optional additive typically are powder or particle form, and extrude with the form of blend, and/or are cut into particle or other shape that is fit to.Said composition can mix in any form, for example, perhaps in forcing machine or in other mixing tank, mixes in molten state through dry mixed.For example, an embodiment comprises the component of melting mixing powder or particle form, extrudes said blend and is ground into particle or shape that other is fit to.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 dry mixed, in forcing machine, mix then in molten state.Said mixing temperature should be higher than the fusing point of each component, but is lower than its lowest decomposition temperature, and certain concrete compsn that therefore must be directed against the homopolymer of polyester and said hydroxyl is correspondingly adjusted.Said mixing temperature depends on the concrete polyester of the present invention and the homopolymer of said hydroxyl, typically is about 180 ℃-Yue 290 ℃, be preferably at least about 220 ℃, and more preferably about at the most 260 ℃.
Thermoplastic compounds of the present invention for example has many ideal character, but is not limited to, good flowability, favorable mechanical performance, good thermostability, and high resistance to chemicals corrodibility.Particularly, said each component can easily be processed (grumeleuse or caking do not take place).In one embodiment, thermoplastic compounds of the present invention has good thermostability.
The present invention also provides thermoplastic compounds of the present invention to be used to prepare moulding, preparation film, preparation fiber or preparation foamy purposes, and moulding, film, fiber or the foam that can be made by said thermoplastic compounds.
The thermoplastic compounds that improves flowability of the present invention can be used for almost any injection moulding purposes.Because improved fluidity of molten, can reduce melt temperature and/or can shorten whole cycle (reducing the production cost of injection moulding) of Shooting Technique greatly.In addition, in the course of processing, only need lower injection pressure, the therefore required total clamp force that is used 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 moulding.For example, can be applied to produce the thin-walled moulded parts, fill the level polyester up to now and still can not directly make thin-gage goods with injection moulding.Likewise, though in existing the application, use through strengthening and can free-pouring polyester (like 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 fiber, film or the moulding of producing any kind, the shield cap of concrete application such as socket, switch, crust component, outer cover, headlight groove, shower nozzle, accessory, flatiron, turn switch, heater controller, fuel tank cap, door handle, (back) mirror housing, rear window rain brush, optical conductor.
The electricity and the electronic installation that use the mobile polyester of improvement 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 possibly using of automobile interior components: test board, lock for steering column, seat element, head rest, central control panel, wheel box element and door accessory; Comprise possibly using of automobile external element: door knob, preceding modulation element, car external mirror element, windshield washer element, windshield washer containment envelope, grid, roof rail, skylight sash and outside car body component.
Improving the mobile possible purposes of polyester 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, mobile improved polyester means and is easier to produce sucker shell and similar elements.
Polymer compsn of the present invention can easily change into particle, and fusion and be spun into silk perhaps directly is used for spinning processing.Said polymer compsn can be spun into silk and be used for fiber base material, for example clothes, carpet, and need said silk other use, and can use conventional polymkeric substance and spinning equipment to prepare.Of this paper other places, with respect to polyester itself, thermoplastic compounds of the present invention provides new variation in the melt viscosity properties.
For purposes of the present invention, term " fiber base material " comprises fiber, yarn, fabric, textiles or the finished product that is used for clothes, home furnishings, carpet and other consumer's goods.To " fiber base material " not special restriction.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 through applying fibrous reticulum or the fibrefill that heat, entanglement and/or pressure connect.
Preferred especially fiber base material of the present invention comprises fiber, yarn, fabric and carpet.
Said silk can be circular or have other shape, and for example eight hemp nettle shapes, trilateral (delta), sunlight four are penetrated shape (being 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 perhaps porous, and are preferably solid.
Can prepare various silks according to the present invention.Be used for most of purposes for example the silk typical dimensions of textiles and carpet be at least about 0.5dpf (DENIER/silk, filament denier), and about at the most 35dpf or higher.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 in the yarn that do not have to curl (for example partially oriented yarn, spin-drawing yarn or other do not have the yarn that curls, as be used for many non-woven fleeces those), also visible advantage of the present invention.
These yarns, long yarn or textured yarn are the multifibres yarns.Said yarn (being also referred to as " bundle ") preferably comprises at least about 10 monofilament; And even more preferably be at least about 25 monofilament; And typically can comprise about at the most 150 monofilament or more, preferably about at the most 100 monofilament, more preferably about at the most 80 monofilament.The yarn that comprises 34,48,68 or 72 monofilament is common.Total denier of said yarn typically is at least about 5, is preferably at least about 20, and preferably at least about 50, and about at the most 1500 or higher, preferably about at the most 250.
Said partially oriented yarn, spin-drawing yarn and textured yarn are used to prepare textile fabric, for example knitting and woven fabric.
Can utilize known technology that bulk filament yarn is processed carpet.Normally; With many yarn twisteds together and at the device of for example autoclave; Carry out heat setting type among SUESSEN or
, tufting is on basic unit's backing then.Apply emulsion adhesive and second layer backing then.
Though the present invention mainly describes with regard to the multifibres yarn, should understand the preferred version of describing among this paper and also be applicable to monofilament.Monofilament is used to prepare many different article, comprises brush (for example, brush etc. is used in paint brush, toothbrush, beauty treatment), fishing line etc.
Need not further detailed description, believe by above-mentioned explanation those skilled in the art to make full use of the present invention.Therefore, it only is exemplary that following examples are interpreted as, and absolutely not to the restriction of disclosure.
Embodiment
Numeral after " embodiment (E) " and " comparative example (CE) " shows that compound prepares in which embodiment or comparative example.Embodiment and comparative example all prepare in the same way and test.Except as otherwise noted, per-cent is weight percent.
The composition that is used for embodiment is shown in Table 1.
Table 1
Embodiment 1. preparations gather (vinylformic acid 4-hydroxyl butyl ester)
Under reduced pressure distill vinylformic acid 4-hydroxyl butyl ester (under 10Pa, steaming) to remove impurity in 83 ℃.Purified vinylformic acid 4-hydroxyl butyl ester (202g) added be furnished with in the 500mL three neck round-bottomed flasks of mechanical stirrer, and with nitrogen purging 10 minutes.AIBN (0.51g) is added in the vinylformic acid 4-hydroxyl butyl ester, then under nitrogen with this mixture heating up to about 50 ℃, continue 7.5 hours.When forming the heavy-gravity gel, stop to stir.This mixture was kept 30 minutes again, then with its cool overnight under 50 ℃.Separation gathers (vinylformic acid 4-hydroxyl butyl ester) and (pHBA), obtains transparent elastic material (165g).The product that obtains is cut into small-particle, and drying under reduced pressure 24 hours at room temperature.
Through the product of differential scanning calorimetry (DSC) and thermogravimetry (TGA) analysis gained, the result shows that the second-order transition temperature (Tg) that gathers (vinylformic acid 4-hydroxyl butyl ester) is-13 ℃, and heat decomposition temperature (Td) is 293 ℃.
Embodiment 2. preparations gather (2-hydroxyethyl methacrylate)
Under reduced pressure distill 2-hydroxyethyl methacrylate (under 10-30Pa, steaming) to remove impurity in 80-90 ℃.Purified 2-hydroxyethyl methacrylate (206g) and AIBN (0.43g) adding are furnished with in the 500mL three neck round-bottomed flasks of mechanical stirrer, and under nitrogen, heated these mixtures 6.5 hours in 52 ℃.After the cool overnight, through separate obtain 158g gather (2-hydroxyethyl methacrylate) (pHEMA), it is a light yellow solid, is cut into small-particle, and 70 ℃ of drying under reduced pressure 24 hours.
Through the product that DSC and TGA analytical separation go out, the result shows that the Tg that gathers (2-hydroxyethyl methacrylate) is 64 ℃, and Td is 292 ℃.
Through GPC, with the PS molecular weight of the pHEMA that measures of standard.Sample (1mg) is stirred an angel at 50 ℃ be dissolved in N, dinethylformamide refilters before the injected sample and removes insolubles.The 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 the Mw/Mn value is about 28.
Embodiment 3. preparations gather (vinylformic acid 2-hydroxy methacrylate)
Under reduced pressure distill vinylformic acid 2-hydroxy methacrylate (under 20-30Pa, steaming) to remove impurity in 70 ℃.Purified vinylformic acid 2-hydroxy methacrylate (200g) and AIBN (0.4g) adding are furnished with in the 500mL three neck round-bottomed flasks of mechanical stirrer, and under nitrogen, heated these mixtures 4.5 hours in 50 ℃.At room temperature after the cool overnight, through separate obtain 120g gather (vinylformic acid 2-hydroxy methacrylate) (pHEA), it is a transparent elastic material.Separated products is cut into small-particle, and 65 ℃ of drying under reduced pressure 24 hours.
Through the product of DSC and TGA analytical separation, the result shows that the Tg that gathers (vinylformic acid 2-hydroxy methacrylate) is-15 ℃, and Td is 436 ℃.
Visible by embodiment 1-3, the Td of the homopolymer of institute's each hydroxyl of synthetic is higher than the typical process temperature of polyester (that is, being 240-270 ℃ for PTT and PBT), and therefore, the homopolymer of these hydroxyls would not be degraded under common processing conditions.
Respectively according to table 2, the group component that 4-6 is listed obtains the correspondent composition of embodiment 4-22 and comparative example 1-5 through following batch mixing step, carries out general molding step then, measures according to universal testing method at last.
The mixing step of embodiment 4-22 and comparative example 1-5
Before the batch mixing, the PTT particle placed force dehumidified air circulation baking oven, about 6 hours of 130 ℃ of dryings.
A) for PTT and pHBA
According to table 2, each embodiment or comparative example's composition is added twin screw extruder (Eurolab16) to obtain the corresponding thermoplastic compounds of particle form.
For the forcing machine with 10 heating module structures, the temperature of forcing machine is set at 180/225/230/240/240/240/240/240/240/240 ℃.Die head temperature is 240 ℃, and screw speed is 350rpm, is 3.5Kg/ hour through amount.
B) for PTT and pHEMA
According to table 4, each embodiment or comparative example's composition is added twin screw extruder (Eurolab16) to obtain the corresponding thermoplastic compounds of particle form.
For the forcing machine with 10 heating module structures, the temperature of forcing machine is set at 160/235/250/250/245/240/240/230/230/225 ℃.Die head temperature is 225 ℃, and screw speed is 320rpm, is 3.8Kg/ hour through amount.
C) for PTT and pHEA
According to table 5, each embodiment or comparative example's composition is added twin screw extruder (Toshiba37) to obtain the corresponding thermoplastic compounds of particle form.
For the forcing machine with 6 heating module structures, the temperature of forcing machine is set at 180/240/240/240/240/220 ℃.Die head temperature is 220 ℃, and screw speed is 250rpm, is 20Kg/ hour through amount.
D) for PTT and pHBA
According to table 6, each embodiment or comparative example's composition is added twin screw extruder (Toshiba37) to obtain the corresponding thermoplastic compounds of particle form.
For the forcing machine with 6 heating module structures, the temperature of forcing machine is set at 110/240/240/240/240/230 ℃.Die head temperature is 230 ℃, and screw speed is 250rpm, is 20Kg/ hour through amount.
General molding step
The particle drying of extruding to moisture content is lower than 40ppm, then moulding.For the test mechanical performance, at Sumitomo 100Ton molding forming machine (screw diameter 32mm; Nozzle diameter 5mm) on, prepares multiduty test bars according to ISO3167.It is 80 ℃ that barrel zone temperature is set at 250 ℃ and die temperature.The basic configuration of multi-usage test bars is a dumb-bell shape, long 150mm, and the stage casing is of a size of wide 10mm, thick 4mm, long 80mm.
Universal testing method
In dry nitrogen atmosphere, carry out dsc (DSC) with TA Q100 DSC.At first sample is heated to 280 ℃ and remain on this temperature 3 minutes to remove thermal history, then quenching to 0 ℃.The heating rate that the compsn of all tests is adopted is 10 ℃/min, carries out the 2nd heating and collects the data that this takes turns.Tg is a second-order transition temperature; Tm is a fusing point; And Tc is a Tc, and with the rate of cooling of 10 ℃/min, the temperature that produces exothermic maximum amount (thermal discharge the crystallisation process) part for the 2nd time during from 280 ℃ of coolings of melt temperature is confirmed through observation for it.
In exsiccant nitrogen and air atmosphere, carry out thermogravimetry analysis (TGA) with TA Q500 appearance.The thermostability that isothermal TGA that is utilized under the nitrogen atmosphere 270 ℃ and 280 ℃ and the non-isothermal TGA under air atmosphere come detection example property compsn.Td is a heat decomposition temperature, is the corresponding temperature of horizontal extending line intersection point institute of tangent line with the initial experimental phase baseline at weight-loss curve slope maximum point place.
Molecular weight is to measure through Size Exclusion Chromatograph SEC method (SEC).In that (Milford analyzes on the instrument of Alliance 2690TM type MA), and it is furnished with Waters 414 available from WatersCorporation
TMDifferential refractive index detector (DRI), Wyatt Technologies (Santa Barbara, DAWN 8+ type multi-angle light scattering detector CA) and differential capillary viscosimeter detector ViscoStar.Be used for isolating chromatographic column and comprise two Shodex GPC HFIP-806M posts and a Shodex GPC HFIP-804M.Moving phase is to contain 1,1,1,3,3 of 0.01M sodium trifluoroacetate, 3-hexafluoro-2-propyl alcohol (HFIP).At 50 ℃, appropriateness stirs down sample is dissolved in mobile phase solvent, at 35 ℃ of flow velocity wash-outs with 0.5mL/min.Mn is a number-average molecular weight; Mw is a weight-average molecular weight; With Mz be the z average molecular weight.
The test and the method for calculation of the limiting viscosity of sample (IV) are following:
Using black formula viscosity tube 1C, is that phenol/tetrachloroethane of 1: 1 is a solvent with mass ratio, 30 ℃ of tests down.At first test solvent is designated as t 30 ℃ of times of flowing out black formula viscosity tube down
0(repeat 3 times, average), the polymer samples of testing 1.0% (wt/vol) concentration then is dissolved in the times of solution black formula viscosity tube of outflow under 30 ℃ of solvent, is designated as t
1The MV of back 3 measurements is got in each sample test 5 times.The limiting viscosity of sample is calculated according to following formula:
η
sp＝η
r-1
In the 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
With Dynic LCR7001 capillary rheometer determining melt viscosity.In test process, make dry granules through capillary rheometer, estimate 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 such as maximum tensile stress, tensile break stress and tension fracture strain.
According to ISO178:2001 (E), on general purpose material test machine Instron 5567, the test flexural property.
According to ISO179, test N-card is than impacting on the CEAST shock-testing machine.
In following examples, further limit embodiment of the present invention.Embodiment (E) and comparative example's (C) compsn and evaluation result are shown among the table 2-6.
Table 2. comprises the polymer blend of pHBA
By the obvious the following stated of the result of table 2.
Visible from the contrast between embodiment 4-11 and the comparative example 1; Mix the thermoplastic compounds that gets with the polyester (being PTT) of 99.90 weight % to 95.00 weight % reducing melt viscosity significantly simultaneously through homopolymer (being pHBA) respectively, still keep good thermostability and mechanical property the hydroxyl of 0.10 weight % to 5.00 weight %.
In addition, embodiment 4-11 has similar inherent viscosity with comparative example 1, and this molecular weight that shows compsn of the present invention does not reduce basically.
In addition, visible from the Tg between embodiment 4-11 and the comparative example 1, Tc, Tm and the contrast of Td data, thermoplastic compounds of the present invention demonstrates significant melt viscosity to be reduced, and several no changes of Tg, Tc, Tm and Td.The result of thermal property shows that thermoplastic compounds of the present invention has good thermostability.
According to using required concrete mechanical property and melt viscosity, those skilled in the art can select the homopolymer of an amount of hydroxyl to mix with polyester with effective reduction melt viscosity.For example, at 250 ℃, shearing rate 1000s
-1Down, its crucial mechanical property is when trying to achieve the balance of flexural stress and fluidity of molten, and it is about 50% that then available set of dispense ratio like embodiment 7 reduces its melt viscosity, and still possess 97% physical strength by the flexural stress data representation.
In another embodiment, embodiment 4 is illustrated in 250 ℃ of shearing rate 100s
-1Following melt viscosity reduces by 18%; Under identical processing conditions, when the melt viscosity that needs PTT (with listed identical materials in the table 2) reduced by 10%, then the suitable amount of the homopolymer of said hydroxyl should be lower than 0.10 weight %.
Table 3
Like what summed up in the table 3, prepared the thermoplastic compounds (embodiment 8) that gathers (vinylformic acid 4-hydroxyl butyl ester) and PTT that comprises 1.00 weight %, and, measured Mn, Mw and Mz through size exclusion chromatography, according to the standard operation that is used for molecular-weight determination.
Embodiment 8 and comparative example's 1 Mn, Mw and Mz data are compared, only observe Mn and reduce increasing slightly of (＜1%) and Mw (＜1%) and Mz (about 5%) slightly.Therefore, molecular weight data does not have significant difference, and this molecular weight that shows compsn of the present invention does not reduce basically.Also conform to according to molecular weight data contrast gained conclusion with characteristic viscosity determining gained conclusion (referring to table 2).
Table 4 comprises the polymer blend of pHEMA
By the obvious the following stated of the result of table 4.
Can know from the contrast between embodiment 12-19 and the comparative example 2; Mix the thermoplastic compounds that gets through homopolymer (being pHEMA) with the polyester (being PTT) of 99.90 weight % to 95.00 weight % respectively and reduce melt viscosity significantly the hydroxyl of 0.10 weight % to 5.00 weight %, and have good thermostability (by Tg, Tc, Tm and Td have basically no change visible), be close in molecular degradation that does not have (visible) and favorable mechanical performance mechanical property mechanical property by similar limiting viscosity data.
Table 5. comprises the polymer blend of pHEA
By the obvious the following stated of the result of table 5.
Visible by the contrast between embodiment 20-21 and the comparative example 3; Mix the melt viscosity that the thermoplastic compounds that gets has reduction through homopolymer (promptly gathering (vinylformic acid 2-hydroxy methacrylate)) with polyester (being PTT) respectively with the hydroxyl of 0.50 weight %, 1.00 weight %, and have good thermostability (by Tg, Tm and Td have basically no change visible), be close in molecular degradation that does not have (visible) and favorable mechanical performance by similar limiting viscosity data.
Table 6. comprises the polymer blend of pHBA
By the obvious the following stated of the result of table 6.
By embodiment 22 and comparative example 5 and visible with reference to comparative example 4 contrast; Respectively through the homopolymer (promptly gathering (vinylformic acid 4-hydroxyl butyl ester)) of the hydroxyl of polyester (being PTT) and 0.50 weight % or the tetramethylolmethane of 0.50 weight % are mixed the thermoplastic compounds that gets; Embodiment 22 has significant melt viscosity to be reduced, and has thermostability preferably (variation of respective value of being compared comparative example 4 by its Tg, Tm and Td is less visible), less molecular degradation (visible by proximate limiting viscosity data) and similar mechanical property.
Though in typical embodiment, set forth and the present invention be described, be not be intended to it is limited to shown in details because various adjustment and replacement are possible under the situation that does not deviate from spirit of the present invention.Therefore, only through normal experiment, those skilled in the art may expect the various variants and the equivalents of this paper invention disclosed, and all these type of variants and equivalents should be thought to be included in the spirit and scope of the present invention that following claim limits.
Claims (11)
1. have and improve mobile thermoplastic compounds, it comprises:
99.99 the polyester of weight % to 95.00 weight % and
0.01 being the ethylene linkage unsaturated monomers by hydroxyl, the homopolymer of the hydroxyl of weight % to 5.00 weight %, the homopolymer of said hydroxyl get through polymerization,
Wherein said weight % is based on the gross weight of said thermoplastic compounds;
And condition is: when said polyester was polyethylene terephthalate, then the ethylene linkage unsaturated monomer of said hydroxyl was not a 2-hydroxyethyl methacrylate.
2. the thermoplastic compounds of claim 1, wherein said polyester is selected from: polyethylene terephthalate, PTT, polybutylene terephthalate and composition thereof.
3. the thermoplastic compounds of claim 2, wherein said polyester is PTT homopolymer or PTT multipolymer, it comprises 70 weight % or more PTT.
4. 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, R wherein
1Be H or C
1-C
6Alkyl, and R
2By the substituted C of at least one hydroxyl
1-C
8Alkyl.
5. the thermoplastic compounds of claim 4, the ethylene linkage unsaturated monomer of wherein said hydroxyl has formula CH
2=C (R
1) CO
2R
2, R wherein
1Be H, methyl or ethyl, and R
2By the substituted C of at least one hydroxyl
1-C
4Alkyl.
6. the thermoplastic compounds of claim 5, 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, methylacrylic acid 3-hydroxy propyl ester or methylacrylic acid 4-hydroxyl butyl ester.
7. the thermoplastic compounds of claim 1, it also comprises at least a additive, and said additive is selected from: inhibitor, thermo-stabilizer, UV light stabilizing agent, the tinting material that comprises dyestuff and pigment, lubricant, hydrolysis-resisting agent, releasing agent and fire retardant.
8. moulded parts, it comprises the arbitrary compsn of claim 1-7 or is made by said composition.
9. fiber base material, it comprises the arbitrary compsn of claim 1-7 or is made by said composition.
10. the fiber base material of claim 9 is fiber, yarn, fabric or carpet.
11. improve the method for the flowability of polymer blend; It comprises: the polyester of 99.99 weight % to 95.00 weight % is mixed with the homopolymer of the hydroxyl of 0.01 weight % to 5.00 weight %; The homopolymer of said hydroxyl is got through polymerization by the ethylene linkage unsaturated monomer of hydroxyl, and wherein said weight % is based on the gross weight of said thermoplastic compounds.
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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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