CN105334280A - Method used for qualitative and quantitative identification of PET, PTT, and PBT fiber, and compounds of PET, PTT, and PBT - Google Patents
Method used for qualitative and quantitative identification of PET, PTT, and PBT fiber, and compounds of PET, PTT, and PBT Download PDFInfo
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- CN105334280A CN105334280A CN201510669747.0A CN201510669747A CN105334280A CN 105334280 A CN105334280 A CN 105334280A CN 201510669747 A CN201510669747 A CN 201510669747A CN 105334280 A CN105334280 A CN 105334280A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/88—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
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- Polyesters Or Polycarbonates (AREA)
Abstract
The invention discloses a method used for qualitative and quantitative identification of PET, PTT, and PBT fiber, and compounds of PET, PTT, and PBT. The method comprises following steps: polyester fiber and compound samples to be analyzed are weighed, and are delivered into a reaction tube, an alcoholysis liquid is added, and a polyester alcoholysis liquid product is obtained via high temperature treatment; ethanediol, propylene glycol, and butanediol are weighed respectively, are diluted with the alcoholysis liquid, and are mixed uniformly so as to obtain a standard sample alcoholysis liquid; gas chromatography is adopted for analysis of prepared standard samples, and peak positions are determined respectively, gas chromatography is adopted for analysis of peak information of the polyester alcoholysis liquid product, qualitative identification of the kind of the polyester fiber is carried out based on peak positions, and quantitative identification of the ratio of the polyester fibers in the samples is carried out based on peak area. The method is high in accurate, repeatability, and identification efficiency, and low in cost, can be used for simultaneous qualitative and quantitative identification of PET, PTT, and PBT fiber, and compounds of PET, PTT, and PBT via gas chromatography, and is capable of satisfying daily detection requirements of textile articles.
Description
Technical field
The present invention relates to the discrimination method of a kind of dacron and compound thereof, particularly a kind of method adopting vapor-phase chromatography qualitative and quantitative to differentiate PET, PTT and PBT fiber and compound thereof.
Background technology
Polyethylene terephthalate (PET), PTT (PTT), polybutylene terephthalate (PBT) are the polyphosphazene polymer ester materials reacted with ethylene glycol, propylene glycol and butylene glycol respectively by terephthalic acid (TPA).PET, PTT and PBT tri-kinds of dacron are all widely used in textile field.Spiral macromolecular conformation imparts the advantage that ptt fiber density is low, elasticity is large.In order to make full use of the excellent properties of PTT, existing scholar's research develops PET/PTT composition fiber, and makes non-weaving cloth, yarn, fabric and clothes and be applied to textile field.Along with the exploitation of multi-component fibre blending, interweaving product, the textile fabrics of this three kinds of fibers at least two kinds of fibers mixture also can get more and more, and is therefore necessary to study the method that quantitative and qualitative analysis differentiates these three kinds of polyester complexes.
Because the structure of these three kinds of dacron is similar, conventional fibre identification method is adopted to be difficult to differentiate them.The people such as Ni Yong adopt differential scanning calorimetry Qualitive test polyester, and adopt nuclear magnetic resonance standard measure to differentiate amount of polyester further, but the method needs the quantitative and qualitative analysis discriminating respectively of two kinds of analytical instrument, analysis cost is high, identification efficiency is low, especially nuclear magnetic resonance analyser is expensive, is not suitable for common lab.Hu Huiqiang adopts polarizing microscope qualitative analysis PET and ptt fiber, but analysis result is subject to the impact of color sample, not necessarily can distinguish PET and ptt fiber, and can not quantitatively differentiate dacron compound.
Summary of the invention
The deficiency of PET, PBT, PTT tri-kinds of dacron compounds can not be differentiated by quantitative and qualitative analysis accurately, easily for prior art, the present invention adopts methyl alcohol ester edman degradation Edman that polyester alcoholysis is become Small molecular, adopt gas chromatography quantitative and qualitative analysis to differentiate dacron compound, identify the classification of polyester exactly.The inventive method accuracy is high, favorable reproducibility, cost are low, and can differentiate three kinds of dacron and blend thereof by quantitative and qualitative analysis while of gas chromatography, identification efficiency is high, can meet the routine testing needs of textile fabrics preferably.
Method provided by the invention comprises the following steps:
1. qualitative and quantitative differentiates a method for PET, PTT and PBT fiber and compound thereof, and compound can be composition fiber, scribbled, blended yarn weaved fabric, interwoven fabric, can also be composite non-weaving cloth, comprise the following steps:
(1) alcoholysis of dacron: take dacron to be analyzed or composite sample, add reaction tube, adds alcoholysis liquid, obtains polyester alcoholysis liquid after pyroprocessing;
(2) configuration of standard model: take ethylene glycol, propylene glycol and butylene glycol respectively, adds the dilution of alcoholysis liquid, mixes;
(3) gas chromatographic analysis: with the standard model of gas chromatographic analysis configuration, determine that it goes out peak position respectively; Peak information is gone out, according to the classification going out peak position Qualitive test dacron, according to the blending ratio going out peak area quantification and differentiate each dacron in sample with gas chromatographic analysis polyester alcoholysis liquid; In method provided by the invention, the alcoholysis liquid that the alcoholysis of dacron and compound thereof adopts is methyl alcohol, 1,6-hexanediol, zinc acetate mixed solution, methyl alcohol, tetraethylene glycol dimethyl ether, zinc acetate mixed solution, monoethanolamine, 1,6-hexanediol mixed solution, any one in monoethanolamine, tetraethylene glycol dimethyl ether mixed solution 4 kinds, treatment temperature is 210 ~ 220 DEG C, reaction time 2 ~ 4h;
In discrimination method provided by the invention, in gas chromatographic analysis process, gas chromatograph is Aglient7890B, chromatographic column is DB-WAX (30m × 0.53mm) capillary column, flow velocity is 2mL/min, column temperature is 180 DEG C, and sample size is 0.8 μ L, and injector temperature is 250 DEG C, detecting device is FID, and detected temperatures is 250 DEG C.
Beneficial effect
(1) the inventive method after adopting the degraded of gas chromatographic analysis polyester micromolecular go out peak position and size, the peak position that goes out according to the Small molecular ethylene glycol of three kinds of polyester alcoholysis, propylene glycol and butylene glycol can accurate qualitative polyester kind, and it detects and is limited to 1%; Go out according to ethylene glycol, propylene glycol and butylene glycol the content that peak area accurately can calculate three kinds of polyester, be less than 1% with the deviation of actual content.
(2) method cost provided by the invention is low, and accuracy is high, favorable reproducibility, and the quantitative and qualitative analysis that can be widely used in polyester product is differentiated.
Accompanying drawing explanation
Fig. 1 be ethylene glycol go out peak spectrogram.
Fig. 2 be propylene glycol go out peak spectrogram.
Fig. 3 be butylene glycol go out peak spectrogram.
Fig. 4 be PET go out peak spectrogram.
Fig. 5 be PTT go out peak spectrogram.
Fig. 6 be PBT go out peak spectrogram.
Fig. 7 be PET and PTT blend go out peak spectrogram.
Fig. 8 be PET and PBT blend go out peak spectrogram.
Fig. 9 be PTT and PBT blend go out peak spectrogram.
Figure 10 be PET, PTT and PBT blend go out peak spectrogram.
Embodiment
Embodiment 1
3, dacron sample, is respectively PET, PTT, PBT fiber, and sample number into spectrum is 1# ~ 3#.
The alcoholysis of step one, dacron
Take PET, PTT, PBT fiber of 1g respectively, be accurate to 0.1mg, add reaction tube, add the alcoholysis liquid of 30mL, alcoholysis liquid selects the mixed solution of methyl alcohol, 1,6-hexanediol, zinc acetate, take out react 2 ~ 4h at 210 ~ 220 DEG C after, with tap water cooling, be filtered in triangular flask, draw 0.8 μ L filtrate and test by gas chromatography.
The configuration of step 2, standard model
Take 0.02g ethylene glycol, propylene glycol and butylene glycol respectively, add 30mL alcoholysis liquid, alcoholysis liquid selects the mixed solution of methyl alcohol, 1,6-hexanediol, zinc acetate, mixes after dilution, draws 0.8 μ L filtrate and tests by gas chromatography.
Step 3, gas chromatographic analysis result
(1) standard model goes out peak
Table 1 standard model goes out peak
| Standard model | Go out peak position/min |
| Ethylene glycol | 1.110 |
| Propylene glycol | 1.502 |
| Butylene glycol | 2.090 |
(2) fiber sample alcoholysis liquid goes out peak
Table 2 fiber sample alcoholysis liquid goes out peak
| Fiber sample | Go out peak position/min | Sample is differentiated |
| 1# | 1.110 | PET |
| 2# | 1.502 | PTT |
| 3# | 2.123 | PBT |
According to fiber sample alcoholysis liquid go out peak position and standard model goes out peak comparison, can Qualitive test dacron rapidly and accurately.
Embodiment 2
Get 3, dacron sample, be respectively PET, PTT, PBT fiber, adopt the method for artificial mixing, three kinds of fibers are mixed between two by different proportion, specifically takes by table 3.
The kind of table 3 three kinds of dacron and quality
| Sample number into spectrum | Kinds of fibers and quality |
| 1# | PET(0.5022g) | PBT(0.5059g) |
| 2# | PET(0.5002g) | PTT(0.5033g) |
| 3# | PBT(0.5022g) | PTT(0.5048g) |
| 4# | PET(0.0108g) | PTT(0.9923g) |
| 5# | PET(0.1008g) | PBT(1.0035g) |
| 6# | PET(0.3032g) | PBT(0.7009g) |
| 7# | PET(0.7025g) | PBT(0.2999g) |
| 8# | PET(0.9051g) | PBT(0.1060g) |
| 9# | PET(0.1046g) | PTT(0.9021g) |
| 10# | PET(0.3021g) | PTT(0.7009g) |
| 11# | PET(0.7019g) | PTT(0.3030g) |
| 12# | PET(0.9037g) | PTT(0.1038g) |
| 13# | PTT(0.1020g) | PBT(0.8986g) |
| 14# | PTT(0.3283g) | PBT(0.7076g) |
| 15# | PTT(0.6995g) | PBT(0.3334g) |
| 16# | PTT(0.9060g) | PBT(0.1020g) |
The alcoholysis of step one, dacron
Sample is taken by the requirement of table 3, be accurate to 0.1mg, add reaction tube, add the alcoholysis liquid of 30mL, alcoholysis liquid selects the mixed solution of methyl alcohol, tetraethylene glycol dimethyl ether, zinc acetate, takes out, cool with tap water at 210 ~ 220 DEG C after reacting 2 ~ 4h, be filtered in triangular flask, draw 0.8 μ L filtrate and test by gas chromatography.
Step 2, gas chromatographic analysis result
Table 4 alcoholysis liquid gas chromatography the qualitative analysis
In table 4, " √ " indicates peak, and "×" represents peak.
The qualitative conclusions obtained by spectrogram is consistent with notional result, therefore the inventive method can accurate Qualitive test dacron blend, and most low energy detects the blend of 1% amount of polyester.
Table 5 alcoholysis liquid chromatogram ration analysis result
The result of quantitative test calculates by formula (1):
W
1-target polyester fabric massfraction, %;
A
1-target polyester fabric peak area;
Another dacron peak area of A-;
F-modifying factor is relevant to fiber nature.
As seen from the above table, the inventive method can differentiate dacron blend by accurate quantitative analysis, and is less than 1% with theoretical content deviation.
Embodiment 3
In order to explore the method quantitatively differentiating three kinds of dacron blend further, adopting the method for artificial mixing, three kinds of fibers are taken by different proportion.3, dacron sample, is respectively PET, PTT, PBT fiber, takes by the requirement of table 6.
The kind of table 6 fiber and ratio
The alcoholysis of step one, polyester
Sample is taken by the requirement of table 6, be accurate to 0.1mg, add reaction tube, add the alcoholysis liquid of 30mL, alcoholysis liquid selects the mixed solution of monoethanolamine, 1,6-hexanediol, take out react 2 ~ 4h at 210 ~ 220 DEG C after, with tap water cooling, be filtered in triangular flask, draw 0.8 μ L filtrate and test by gas chromatography.
Step 2, gas chromatographic analysis result
Table 7 alcoholysis liquid gas chromatography the qualitative analysis
As seen from the above table, the qualitative conclusions obtained by spectrogram is consistent with notional result, is the blend of three kinds of dacron.
Table 8PET alcoholysis liquid chromatogram ration analysis result
Table 9PTT alcoholysis liquid chromatogram ration analysis result
The result of quantitative test calculates by formula (2):
W
1-target polyester fabric massfraction, %;
A
1-target polyester fabric peak area;
A
2-the second dacron peak area;
A
3-the third dacron peak area;
F
1, f
2-modifying factor is relevant to fiber nature.
The inventive method can differentiate three kinds of dacron blend by accurate quantitative analysis, and is less than 1% with theoretical content deviation.
Embodiment 4
The inventive method compares with differential thermal analysis (DTA) and nuclear magnetic resonance spectroscopy method, gets three kinds of commercial polyesters scribbleds, is respectively 1#, 2#, 3#.
The alcoholysis of step one, polyester
Take 1g sample respectively, be accurate to 0.1mg, add reaction tube, add the alcoholysis liquid of 30mL, alcoholysis liquid selects the mixed solution of monoethanolamine, tetraethylene glycol dimethyl ether, takes out, cool with tap water at 210 ~ 220 DEG C after reacting 2 ~ 4h, be filtered in triangular flask, draw 0.8 μ L filtrate and test by gas chromatography.
Step 2, gas chromatographic analysis result compare with differential thermal analysis (DTA) and nuclear magnetic resonance result
The scribbled qualitative analysis of table 10 commercial polyesters and differential thermal analysis (DTA) results contrast
| Sample number into spectrum | 1.1min place is | Go out peak position | Go out peak position | Scribbled kind | Differential thermal analysis (DTA) is tied |
| No go out peak | (1.5min place) | (2.1min place) | Really | ||
| 1# | √ | × | √ | PET/PBT | PET/PBT |
| 2# | √ | √ | × | PET/PTT | PET/PTT |
| 3# | × | √ | √ | PBT/PTT | PBT/PTT |
The scribbled quantitative test of table 11 commercial polyesters and nuclear magnetic resonance spectroscopy results contrast
The inventive method is consistent with differential thermal the qualitative analysis, is less than 1% with nmr quantitative analysis result difference.
Embodiment 5
The inventive method compares with differential thermal analysis (DTA) and nuclear magnetic resonance spectroscopy method, gets three kinds of commercial polyesters blended yarn weaved fabrics, is respectively 1#, 2#, 3#.
The alcoholysis of step one, polyester
Take 1g sample respectively, be accurate to 0.1mg, add reaction tube, add the methyl alcohol of 30mL, 1,6-hexanediol, zinc acetate mixed solution, as alcoholysis liquid, take out after reacting 2 ~ 4h, cool with tap water at 210 ~ 220 DEG C, be filtered in triangular flask, draw 0.8 μ L filtrate and test by gas chromatography.
Step 2, gas chromatographic analysis result compare with differential thermal analysis (DTA) and nuclear magnetic resonance result
The blended yarn weaved fabric qualitative analysis of table 12 commercial polyesters and differential thermal analysis (DTA) results contrast
The blended yarn weaved fabric quantitative test of table 13 commercial polyesters and nuclear magnetic resonance spectroscopy results contrast
The inventive method is consistent with differential thermal the qualitative analysis, is less than 1% with nmr quantitative analysis result difference.
Embodiment 6
The inventive method compares with differential thermal analysis (DTA) and nuclear magnetic resonance spectroscopy method, gets three kinds of commercial polyesters composition fibers, is respectively 1#, 2#, 3#.
The alcoholysis of step one, polyester
Take 1g sample respectively, be accurate to 0.1mg, add reaction tube, add the methyl alcohol of 30mL, 1,6-hexanediol, zinc acetate mixed solution, as alcoholysis liquid, take out after reacting 2 ~ 4h, cool with tap water at 210 ~ 220 DEG C, be filtered in triangular flask, draw 0.8 μ L filtrate and test by gas chromatography.
Step 2, gas chromatographic analysis result compare with differential thermal analysis (DTA) and nuclear magnetic resonance result
The composition fiber qualitative analysis of table 14 commercial polyesters and differential thermal analysis (DTA) results contrast
The composition fiber quantitative test of table 15 commercial polyesters and nuclear magnetic resonance spectroscopy results contrast
The inventive method is consistent with differential thermal the qualitative analysis, is less than 1% with nmr quantitative analysis result difference.
Claims (3)
1. qualitative and quantitative differentiates a method for PET, PTT, PBT fiber and compound thereof, and compound can be composition fiber, scribbled, blended yarn weaved fabric, interwoven fabric, can also be composite non-weaving cloth, comprise the following steps:
(1) alcoholysis of dacron: take dacron to be analyzed or composite sample, add reaction tube, adds alcoholysis liquid, obtains polyester alcoholysis liquid after pyroprocessing;
(2) configuration of standard model: take ethylene glycol, propylene glycol and butylene glycol respectively, adds the dilution of alcoholysis liquid, mixes;
(3) gas chromatographic analysis: with the standard model of gas chromatographic analysis configuration, determine that it goes out peak position respectively; Peak information is gone out, according to the classification going out peak position Qualitive test dacron, according to the blending ratio going out peak area quantification and differentiate each dacron in sample with gas chromatographic analysis polyester alcoholysis liquid.
2. qualitative and quantitative as claimed in claim 1 differentiates the method for PET, PTT, PBT fiber and compound thereof, it is characterized in that in the alcoholysis process of dacron and compound, the alcoholysis liquid adopted is methyl alcohol, 1,6-hexanediol, zinc acetate mixed solution, methyl alcohol, tetraethylene glycol dimethyl ether, zinc acetate mixed solution, monoethanolamine, 1,6-hexanediol mixed solution, any one in monoethanolamine, tetraethylene glycol dimethyl ether mixed solution four kinds, treatment temperature is 210 ~ 220 DEG C, reaction time 2 ~ 4h.
3. qualitative and quantitative as claimed in claim 1 differentiates the method for PET, PTT, PBT fiber and compound thereof, it is characterized in that gas chromatograph is Aglient7890B in gas chromatographic analysis process, chromatographic column is DB-WAX (30m × 0.53mm) capillary column, flow velocity is 2mL/min, column temperature is 180 DEG C, and sample size is 0.8 μ L, and injector temperature is 250 DEG C, detecting device is FID, and detected temperatures is 250 DEG C.
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| CN201510669747.0A CN105334280A (en) | 2015-10-16 | 2015-10-16 | Method used for qualitative and quantitative identification of PET, PTT, and PBT fiber, and compounds of PET, PTT, and PBT |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235992A (en) * | 2021-11-30 | 2022-03-25 | 湖北航天化学技术研究所 | Method for measuring contents of different types of PET (polyethylene terephthalate) |
| CN115436505A (en) * | 2022-08-09 | 2022-12-06 | 华测检测认证集团股份有限公司 | Quantitative test method for polyester biodegradable material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5804317A (en) * | 1993-05-06 | 1998-09-08 | Saint-Gobain Vitrage International | Process for reinforcing glass objects |
| CN1401688A (en) * | 2002-09-15 | 2003-03-12 | 中国科学院兰州化学物理研究所 | Process of chemical recovery of waste polyglycol p-phthalate |
| CN101434821A (en) * | 2007-11-16 | 2009-05-20 | 比亚迪股份有限公司 | Method for preparing hot-melt adhesive from polyester waste material |
| CN102250379A (en) * | 2011-06-01 | 2011-11-23 | 中国人民解放军总后勤部军需装备研究所 | Method for separation of terylene-cotton blended fabrics and repolymerization of terylene |
| JP2014508275A (en) * | 2010-10-06 | 2014-04-03 | ザ・ボーイング・カンパニー | Extraction method and system for monitoring the presence of phosphate esters in jet fuel |
-
2015
- 2015-10-16 CN CN201510669747.0A patent/CN105334280A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5804317A (en) * | 1993-05-06 | 1998-09-08 | Saint-Gobain Vitrage International | Process for reinforcing glass objects |
| CN1401688A (en) * | 2002-09-15 | 2003-03-12 | 中国科学院兰州化学物理研究所 | Process of chemical recovery of waste polyglycol p-phthalate |
| CN101434821A (en) * | 2007-11-16 | 2009-05-20 | 比亚迪股份有限公司 | Method for preparing hot-melt adhesive from polyester waste material |
| JP2014508275A (en) * | 2010-10-06 | 2014-04-03 | ザ・ボーイング・カンパニー | Extraction method and system for monitoring the presence of phosphate esters in jet fuel |
| CN102250379A (en) * | 2011-06-01 | 2011-11-23 | 中国人民解放军总后勤部军需装备研究所 | Method for separation of terylene-cotton blended fabrics and repolymerization of terylene |
Non-Patent Citations (7)
| Title |
|---|
| S.J. CHIU 等: "Thermal degradation and catalytic cracking of poly(ethylene terephthalate)", 《POLYMER DEGRADATION AND STABILITY》 * |
| SHWU-JER CHIU 等: "A comparative study on thermal and catalytic degradation of polybutylene terephthalate", 《JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS》 * |
| 俞雄飞 等: "裂解气相色谱质谱技术鉴定聚醋纤维", 《合成纤维工业》 * |
| 李培元 等: "不同稳定剂对PET副反应的抑制规律", 《合成纤维》 * |
| 查纯喜 等: "核磁共振法定性定量分析纺织面料中的PTT和PET纤维", 《上海毛麻科技》 * |
| 江若平 等: "气相色谱法测定PTT中的DPG含量", 《合成纤维工业》 * |
| 王兴原 等: "原位红外光谱研究聚对苯二甲酸乙二醇酯(PET)醇解反应过程", 《高校化学工程学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235992A (en) * | 2021-11-30 | 2022-03-25 | 湖北航天化学技术研究所 | Method for measuring contents of different types of PET (polyethylene terephthalate) |
| CN114235992B (en) * | 2021-11-30 | 2023-12-12 | 湖北航天化学技术研究所 | Method for measuring content of PET of different types |
| CN115436505A (en) * | 2022-08-09 | 2022-12-06 | 华测检测认证集团股份有限公司 | Quantitative test method for polyester biodegradable material |
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Application publication date: 20160217 |