CN1493607A - Polypropylene/clay nano complex substance and its preparation method and application - Google Patents
Polypropylene/clay nano complex substance and its preparation method and application Download PDFInfo
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- CN1493607A CN1493607A CNA021470987A CN02147098A CN1493607A CN 1493607 A CN1493607 A CN 1493607A CN A021470987 A CNA021470987 A CN A021470987A CN 02147098 A CN02147098 A CN 02147098A CN 1493607 A CN1493607 A CN 1493607A
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Abstract
A nano-class polypropylene clay composite is prepared from the chemical degradation modified polypropylene homopolymer 85-97.5 portions, organic clay 0.5-5 portions, polypropylene grafted maleic acid anhydride 0.5-5 portions, linear polystyrene 0.5-2 portions and high-density polyethylene 1-5 portions. It has high spinnability, so it can be used to prepare the polypropylene fibres with excellent performance.
Description
Technical field
The present invention relates to a kind of polypropylene composite, specially refer to polypropylene/clay nano mixture, the invention still further relates to its preparation method and application.
Background technology
Polypropylene has been used widely since the nineteen fifty-seven industrialization owing to have good physics, chemical property and lower-price characteristic.But because polypropylene does not have polar group, and compound with regular structure, thereby static resistance is poor, moisture regain is low and feel is bad, has limited its application aspect clothes and industry greatly.Usually adopt the method for blending and modifying to make polypropylene contain polar group, destroy its ordered structure simultaneously, but often cause the polypropylene spinning property to descend.The preparation nano-complex is the new way of blending and modifying.Because the influence of nanoscale effect and strong interfacial interaction makes polypropylene/clay nano mixture have better spinnability, the polypropylene fibre that makes simultaneously is expected to have good static resistance and water absorbability.
More about the research of superpolymer/clay nano mixture both at home and abroad at present, but mainly be to be used for the plastics aspect, the research that is suitable for the polypropylene/clay nano mixture of spinning fibre is not reported.
Summary of the invention
The objective of the invention is to adopt the method for melt intercalation, by the twin screw blend, allow polyacrylic chain be inserted between the accurate two-dimentional silicate clay lamella and it is dissociated or the part dissociate, a kind of polypropylene/clay nano mixture that is suitable for spinning is provided.
The present invention also is to provide its preparation method and the application in spinning.
Basic design of the present invention and major technique are constructed as follows: the shortcoming at existing polypropylene fibre is taken provides a kind of polypropylene/clay nano mixture of taking fiber that is suitable for spinning.In order to improve Dispersion of Clay, to the clay processing that organises, add a kind of compatilizer simultaneously, make polypropylene chains be easy to insert in the clay layer, for guaranteeing the composition better spinnability, the drawdown that spun filament is good and the mechanical property of finished silk and quality product, we adopt the homopolymer polypropylene of chemical degradation modification, add a spot of high density polyethylene(HDPE) simultaneously, in order further to destroy polyacrylic dense structure, make the surface of fiber produce many micropores, can add a spot of pore former.
A kind of polypropylene of the present invention/clay nano mixture, by weight percentage, form by following component and content:
The homopolymer polypropylene 85-97.5 of chemical degradation modification
Organic clay 0.5-5
Polypropylene grafted maleic anhydride 0.5-5
Linear polystyrene 0.5-2
High density polyethylene(HDPE) 1-5
The homopolymer polypropylene melt flow index of described chemical degradation modification is 15-60g/10min, is preferably 35-55g/10min.Its preparation method is seen document: synthetic fiber industry, the 18th volume, the fourth phase, August nineteen ninety-five, 14-18 page or leaf, " influence of auxiliary agent, temperature and molecular weight in the PP chemical degradation "
Described clay is a kind of layer silicate mineral polynite, and CN1288023A carries out organic surface-active-treatment according to the Chinese invention patent application publication number.
Described polypropylene grafted maleic anhydride is as compatilizer, and its percentage of grafting scope can be 0.1-5%.
Described linear polystyrene is as pore former.
Clay consumption of the present invention is 0.5-5 part.When consumption was lower than 0.5 part, fiber water absorbability that is spun into and antistatic property improved not obvious; When consumption surpassed 5%, the fiber color that is spun into was bad.
The preparation method of polypropylene of the present invention/clay nano mixture, by weight percentage, step is carried out in the following order: the chemical degradation modified polypropene of 85-98,0.5-5 organic clay, the polypropylene grafted maleic anhydride of 0.5-5, the linear polystyrene of 0.5-2, the high density polyethylene(HDPE) of 1-5 are carried out uniform mixing, then with twin screw extruder under 180-240 ℃, extrude, Cast Strip, granulation make.
Polypropylene of the present invention/the application of clay nano mixture in spinning adopts conventional spining technology to get final product, and specifically step is carried out in the following order:
1 polypropylene/clay nano mixture is cut into slices 70-110 ℃ of vacuum-drying.
2 polypropylene/clay nano mixture carries out melt-spinning on general spinning equipment, spinning temperature is 200-250 ℃, and spinning speed is 200-1000m/min, but makes well behaved undrawn yarn of drawing-off or pre-oriented yarn.
3 with undrawn yarn through 70-120 ℃ of hot drawing-off, drafting multiple be 1.5-5 doubly, obtain fiber number 1.0-10.0dtex drafting silk.
Polypropylene clay nano mixture of the present invention is being applied aspect antistatic, the high moisture absorption polypropylene fibre of preparation, the high-performance polypropylene engineering plastics.
Polypropylene clay resin combination of the present invention has good spinnability, and by its characteristics such as polypropylene fibre excellent property that make, fibre property sees Table 6.
Embodiment
The present invention intends by following embodiment and Comparative Examples simple declaration characteristics of the present invention and advantage, but can not think that the present invention only only limits to the content of embodiment.
In following examples:
Pore former is a linear polystyrene, and the trade mark is PS666D, and yanshan petrochemical factory in Beijing produces; Compatilizer is a polypropylene grafted maleic anhydride; The trade mark of high density polyethylene(HDPE) is HD2480, Qilu Petrochemical production; When preparation polypropylene/clay nano mixture, under 200 ℃, extrude, Cast Strip, granulation; When spinning, polypropylene/clay nano mixture is cut into slices 90 ℃ of vacuum-dryings.
With the cationic exchange total volume is the sodium-based montmorillonite 10g of 100meq/100g, adds water 800g, and high-speed stirring is 0.5 hour after waiting to be uniformly dispersed, and obtains montmorillonite suspension liquid A.In concentrated hydrochloric acid 1g and the poly-diethyl diallyl ammonium chloride of 5g, add water 200g, be warming up to 80 ℃ of stirrings, until forming uniform protonated liquid B.Be incubated 80 ℃ then, the B drop is added in the A liquid, high-speed stirring 3 hours, cooling, washing, drying, mechanical disintegration, vacuum-drying obtain nano organic montmorillonite.
Embodiment 1:
Polypropylene/clay nano mixture by following prescription (seeing Table 1) carries out melt-spinning.Spinning speed is 900m/min, and spinning temperature is 210 ℃, and 100 ℃ of hot drawing-offs, drafting multiple is 3 times, and the performance that obtains drafting silk sees Table 6.
The prescription of table 1, polypropylene/clay nano mixture
The homopolymer polypropylene 97.5 of chemical degradation modification
(melt flow index is 55g/10min)
Organic clay 0.5
Compatilizer (percentage of grafting is 0.5%) 0.5
Pore former 0.5
High density polyethylene(HDPE) 1
Embodiment 2:
Select the polypropylene/clay nano mixture of following prescription (seeing Table 2) for use, carry out melt-spinning.
Spinning speed is 500m/min, and spinning temperature is 245 ℃, and 105 ℃ of hot drawing-offs, drafting multiple is 2 times, and the performance that obtains drafting silk sees Table 6.
The prescription of table 2, polypropylene/clay nano mixture
The homopolymer polypropylene 85 of chemical degradation modification
(melt flow index is 55g/10min)
Organic clay 5
Compatilizer (percentage of grafting is 0.7%) 5
Pore former 1
High density polyethylene(HDPE) 4
Embodiment 3:
Select the polypropylene/clay nano mixture of following prescription (seeing Table 3) for use, carry out melt-spinning.Spinning speed is 200m/min, and spinning temperature is 240 ℃, and 110 ℃ of hot drawing-offs, drafting multiple is 4 times, and the performance that obtains drafting silk sees Table 6.
The prescription of table 3, polypropylene/clay nano mixture
The homopolymer polypropylene 89 of chemical degradation modification
(melt flow index is 35g/10min)
Organic clay 3
Compatilizer (percentage of grafting is 1%) 4
Pore former 2
High density polyethylene(HDPE) 2
Embodiment 4:
Select the polypropylene/clay nano mixture of following prescription (seeing Table 4) for use, carry out melt-spinning.Spinning speed is 200m/min, and spinning temperature is 220 ℃, and 120 ℃ of hot drawing-offs, drafting multiple is 2 times, and the performance that obtains drafting silk sees Table 6.
The prescription of table 4, polypropylene/clay nano mixture
The homopolymer polypropylene 94.5 of chemical degradation modification
(melt flow index is 44g/10min)
Organic clay 2
Compatilizer (percentage of grafting is 3%) 1
Pore former 0.5
High density polyethylene(HDPE) 2
Embodiment 5:
Select the polypropylene/clay nano mixture of following prescription (seeing Table 5) for use, carry out melt-spinning.Spinning speed is 600m/min, and spinning temperature is 230 ℃, and 105 ℃ of hot drawing-offs, drafting multiple is 3 times, and the performance that obtains drafting silk sees Table 6.
The prescription of table 5, polypropylene/clay nano mixture
The homopolymer polypropylene 92 of chemical degradation modification
(melt flow index is 44g/10min)
Organic clay 3
Compatilizer (percentage of grafting is 2%) 2
Pore former 1
High density polyethylene(HDPE) 2
Embodiment 6:
Selecting melting index for use is the virgin pp of 44g/10min, carries out melt-spinning.Spinning speed is 600m/min, and spinning temperature is 230 ℃, and 105 ℃ of hot drawing-offs, drafting multiple is 3 times, and the performance that obtains drafting silk sees Table 6.
Table 6 embodiment 1-6
| Embodiment | ????1 | ????2 | ????3 | ????4 | ????5 | ????6 | |
| Spinning temperature (℃) | ????210 | ????245 | ????240 | ????220 | ????230 | ????230 | |
| Spinning speed (m/min) | ????900 | ????500 | ????200 | ????200 | ????600 | ????600 | |
| Drawing temperature (℃) | ????100 | ????105 | ????120 | ????110 | ????105 | ????105 | |
| Drafting multiple | ????2 | ????2 | ????4 | ????2 | ????3 | ????3 | |
| The performance of drafting silk | Fiber number (dtex) | ????1.5 | ????3.2 | ????5.4 | ????9.2 | ????2.2 | ????2.5 |
| Intensity (cn/dtex) | ????3.5 | ????2.5 | ????4.2 | ????2.4 | ????3.8 | ????4.5 | |
| Elongation (%) | ????25.4 | ????22.5 | ????20.7 | ????28.6 | ????23.5 | ????20.8 | |
| Than resistance (Ω cm) | ????5.2×10 8 | ????2.3×10 9 | ????5.4×10 6 | ????1.1×10 7 | ????2.2×10 6 | ????1.6×10 12 | |
| Moisture regain (%) | ?????0.5 | ????0.2 | ????1.2 | ????1.0 | ????1.5 | ????0.05 | |
Claims (4)
1. polypropylene/clay nano mixture, by weight percentage, form by following component and content:
The homopolymer polypropylene 85-97.5 of chemical degradation modification
Organic clay 0.5-5
Polypropylene grafted maleic anhydride 0.5-5
Linear polystyrene 0.5-2
High density polyethylene(HDPE) 1-5
The homopolymer polypropylene melt flow index of described chemical degradation modification is 15-60g/10min;
Described polypropylene grafted maleic anhydride percentage of grafting scope is 0.1-5%.
2. according to the polypropylene/clay nano mixture of claim 1, it is characterized in that: the homopolymer polypropylene melt flow index of described chemical degradation modification is 35-55g/10min.
3. the preparation method of polypropylene/clay nano mixture, by weight percentage, step is carried out in the following order: the chemical degradation modified polypropene of 85-98,0.5-5 organic clay, the polypropylene grafted maleic anhydride of 0.5-5, the linear polystyrene of 0.5-2, the high density polyethylene(HDPE) of 1-5 are carried out uniform mixing, then with twin screw extruder under 180-240 ℃, extrude, Cast Strip, granulation make.
4. claim 1 or the polypropylene/application of clay nano mixture in spinning of 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021470987A CN1493607A (en) | 2002-10-29 | 2002-10-29 | Polypropylene/clay nano complex substance and its preparation method and application |
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|---|---|---|---|
| CNA021470987A CN1493607A (en) | 2002-10-29 | 2002-10-29 | Polypropylene/clay nano complex substance and its preparation method and application |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371384C (en) * | 2006-03-03 | 2008-02-27 | 中山大学 | Reacting nano inorganic particle/polymer composite material |
| CN100445437C (en) * | 2006-06-14 | 2008-12-24 | 淄博永麒化工技术开发有限公司 | Polypropylene/clay composite fiber and method for preparing same |
| CN104690979A (en) * | 2015-02-16 | 2015-06-10 | 长春博超汽车零部件股份有限公司 | Low-VOC natural fiber composite as well as preparation method and application of composite |
-
2002
- 2002-10-29 CN CNA021470987A patent/CN1493607A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371384C (en) * | 2006-03-03 | 2008-02-27 | 中山大学 | Reacting nano inorganic particle/polymer composite material |
| CN100445437C (en) * | 2006-06-14 | 2008-12-24 | 淄博永麒化工技术开发有限公司 | Polypropylene/clay composite fiber and method for preparing same |
| CN104690979A (en) * | 2015-02-16 | 2015-06-10 | 长春博超汽车零部件股份有限公司 | Low-VOC natural fiber composite as well as preparation method and application of composite |
| CN104690979B (en) * | 2015-02-16 | 2019-09-03 | 长春博超汽车零部件股份有限公司 | A kind of low VOC natural-fiber composite material, preparation method and applications |
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