CN1123595C - High-flowability polypropylene resin composition and its preparing process and usage - Google Patents
High-flowability polypropylene resin composition and its preparing process and usage Download PDFInfo
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- CN1123595C CN1123595C CN98117712A CN98117712A CN1123595C CN 1123595 C CN1123595 C CN 1123595C CN 98117712 A CN98117712 A CN 98117712A CN 98117712 A CN98117712 A CN 98117712A CN 1123595 C CN1123595 C CN 1123595C
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- polypropylene
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- polypropylene resin
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- 229920001155 polypropylene Polymers 0.000 title claims abstract description 76
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 66
- -1 polypropylene Polymers 0.000 title claims abstract description 50
- 239000011342 resin composition Substances 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title description 7
- 239000000835 fiber Substances 0.000 claims abstract description 27
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 22
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 22
- 238000002144 chemical decomposition reaction Methods 0.000 claims abstract description 20
- 229920005629 polypropylene homopolymer Polymers 0.000 claims abstract description 19
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims abstract description 17
- 235000013539 calcium stearate Nutrition 0.000 claims abstract description 17
- 239000008116 calcium stearate Substances 0.000 claims abstract description 17
- 238000007334 copolymerization reaction Methods 0.000 claims abstract description 17
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 17
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 17
- 229920000642 polymer Polymers 0.000 claims abstract description 5
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims abstract description 4
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 28
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 15
- 239000000155 melt Substances 0.000 claims description 9
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 8
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims 2
- FEXBEKLLSUWSIM-UHFFFAOYSA-N 2-Butyl-4-methylphenol Chemical compound CCCCC1=CC(C)=CC=C1O FEXBEKLLSUWSIM-UHFFFAOYSA-N 0.000 claims 1
- CPGKMLVTFNUAHL-UHFFFAOYSA-N [Ca].[Ca] Chemical compound [Ca].[Ca] CPGKMLVTFNUAHL-UHFFFAOYSA-N 0.000 claims 1
- 238000009987 spinning Methods 0.000 abstract description 37
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 12
- 239000011347 resin Substances 0.000 description 12
- 229920005989 resin Polymers 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000805 composite resin Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229920000891 common polymer Polymers 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000010094 polymer processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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- Artificial Filaments (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
本发明的高流动性聚丙烯树脂组合物包括化学降解改性的聚丙烯均聚物80-95%，聚合级共聚或均聚聚丙烯1-10%，高密度聚乙烯(HDPE)0.1-10%，低密度聚乙烯(LDPE)0.13%或一种线性低密度聚乙烯(LLDPE)0.1-3%，硬脂酸钙0.1-0.3%，2，6-二叔丁基-4-甲基苯酚0.1-0.5%。通过共混在180-230℃挤出，造粒。该树脂组合物具有加工性能好、纺丝温度低的特点，可用于制造纤维、薄膜和管材。The high-fluidity polypropylene resin composition of the present invention comprises chemical degradation modified polypropylene homopolymer 80-95%, polymer grade copolymerization or homopolypropylene 1-10%, high-density polyethylene (HDPE) 0.1-10% %, low-density polyethylene (LDPE) 0.13% or a linear low-density polyethylene (LLDPE) 0.1-3%, calcium stearate 0.1-0.3%, 2,6-di-tert-butyl-4-methylphenol 0.1-0.5%. Extruded at 180-230°C by blending, granulated. The resin composition has the characteristics of good processability and low spinning temperature, and can be used for making fibers, films and pipes.
Description
The present invention relates to a kind of high-flowability polypropylene resin composition and manufacture method thereof.
Reasons such as molecular weight, molecular weight distribution and foreign matter content owing to the commodity acrylic resin, the flowability and the poor in processability of general acrylic resin, cause exceeding the spinning more than 100 ℃ of polypropylene fusing point, all be difficult to stably spin smoothly superior in quality finished fiber.Industrial with the higher resin spinning of melt flow index, but the intensity of fiber is little, and extension at break big (＞100%) is usually used in the non-woven field.With the control chemical degradation method common polymer grade polypropylene is carried out modification and handle the high-flowability polypropylene resin of making, though can change resin flow, processibility is still not ideal enough.Patent CN1068603A discloses a kind of with polymer grade polypropylene and the polyacrylic composition spinning of chemical degradation, the melt flow index of described resin is about 45, and is better mobile, though processibility has obvious improvement, but its spinning temperature is still higher, is 250-260 ℃.
The diameter of thin dawn, superfine denier polypropylene fibers is much thinner than the diameter of conventional polypropylene fibre, and the spinning difficulty is big, needs could successfully make the finished fiber of excellent property with special spinning special raw material, special spinning equipment and spinning technology parameter.Can find that from disclosed patent report various different spining technology routes have some common characteristic, all adopt the quite high acrylic resin of melt flow index as the spinning PP Pipe Compound.As the PP Pipe Compound spinning of melt flow index of some patent report up to 300-500; Some patent report is spun into fine denier polypropylene fibers with the resin of special requirement with quite high speed.But the intensity of these fibre products is low, extension at break is big, is not suitable for stable textiles of manufacturing dimension or high-intensity industry fiber.GB
(11)2258869
(13)B and Chinese patent application numbers 95119565.4 discloses a kind of composition and " a kind of alloying polypropylene resin composite and method for making and purposes " of polypropylene resin composite respectively, patent CN1068603A and Chinese patent application numbers 95119564.5 discloses " manufacture method of a kind of thin dawn and superfine denier polypropylene fibers " and " a kind of thin dawn and superfine denier polypropylene " alloy " fiber and method for making thereof " respectively, but the processing temperature with above-mentioned existing spining technology is 250-270 ℃, be higher than 100 ℃ of polypropylene fusing points, being higher than its fusing point with the spinning temperature of polyester or polymeric amide compares for about 30 ℃, obviously higher, cause the power consumption of polymer processing of polypropylene fibre bigger than normal.
A kind of high-flowability polypropylene resin composition of the present invention overcome in the past that Resin Flow was poor, processing temperature high and the course of processing such as consequent spinning in shortcoming such as resin degraded or product deterioration and provide a kind of can be in quite high polypropylene resin composite of lesser temps spinning, spinning speed and preparation method thereof.
The present invention seeks to develop applicable to the existing common melt spinning apparatus of China, resin workability excellent low temperature spinning polypropene composition.Basic design of the present invention and major technique are constructed as follows: at the shortcoming in existing polypropylene fibre (comprising thin dawn, the superfine Denier fibre) manufacturing technology, provide a kind of polypropylene resin composite of good processability.For flowability, tensility and the reduction spinning temperature that improves the resin combination melt, we have adopted the high-flowability polypropylene composition of melt flow index 50-200, simultaneously for the mechanical property that guarantees finished fiber and the quality of finished silk, we add the polyethylene of little polypropylene of a spot of melt flow index and different size in composition.Spinning temperature is reduced to below 250 ℃.Best spinning temperature is controlled at about the above 20-30 of polypropylene fusing point ℃ promptly 180-210 ℃.
High-flowability polypropylene speciality resin for spinning composition of the present invention comprises following composition and content (weight fraction):
(1): the homopolymer polypropylene of chemical degradation modification, its content are 80-95
(2): polymerization-grade copolymerization or homo-polypropylene PP, its content are 1-10
(3): HDPE, its content are 0.1-10
(4): LDPE, its content are 0.1-3 or a kind of LLDPE, and its content is 0.1-3
(5): calcium stearate 0.1-0.3
(6): 2,6 di tert butyl 4 methyl phenol 0.1-0.5
The melt flow index of above-mentioned chemical degradation modified polypropene is 50-200
The melt flow index of above-mentioned polymerization-grade copolymerization or homo-polypropylene is at 0.2-10
The melt flow index of above-mentioned HDPE is 1-30
The melt flow index of above-mentioned LDPE or LLDPE is 0.2-10
The manufacturing of high-flowability polypropylene composition of the present invention is in the following order, step carries out:
(1) be that the above-mentioned chemical degradation modified polypropene of 80-95, content are that above-mentioned polymerization-grade copolymerization of 1-10 or homopolymerization are poly-with content
Propylene, content are that the HDPE of 0.1-5 and above-mentioned LDPE or content that content is 0.1-3 are the LLDPE of 0.1-3
With content is that 0.2 2,6 di tert butyl 4 methyl phenol, 0.1 calcium stearate mix;
(2) with said mixture in temperature be extrude on the twin screw extruder under 180-230 ℃, the Cast Strip, be a granulated into poly-
Propylene compositions.
The purposes of high-flowability polypropylene resin composition of the present invention comprises thin dawn, superfine denier polypropylene fibers, polypropylene strong fibre, conventional polypropylene fibre and polypropylene film and tubing.
High-flowability polypropylene resin composition of the present invention has that processibility is good, spinning temperature is low, production efficiency is high and characteristics such as fibre property is good, and fibre property sees Table 1.
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.
Embodiment 1
With melt flow index be 95 parts of above-mentioned chemical degradation modified polypropenes of 50,2 parts of above-mentioned polymerization-grade copolymerization or homo-polypropylene, 2 parts of HDPE, 1 part above-mentioned LDPE, 0.2 part 2,6-di-tert-butyl-4-methy phenol, 0.1 part the polypropene composition of calcium stearate the results are shown in Table 1 180 ℃ of spinning
Embodiment 2
With melt flow index be 95 parts of above-mentioned chemical degradation modified polypropenes of 50,2 parts of above-mentioned polymerization-grade copolymerization or homo-polypropylene, 2 parts of HDPE, 1 part above-mentioned LDPE, 0.2 part 2,6-di-tert-butyl-4-methy phenol, 0.1 part the polypropene composition of calcium stearate the results are shown in Table 1 210 ℃ of spinning.
Embodiment 3
With melt flow index be 95 parts of above-mentioned chemical degradation modified polypropenes of 50,2 parts of above-mentioned polymerization-grade copolymerization or homo-polypropylene, 2 parts of HDPE, 1 part above-mentioned LDPE, 0.2 part 2,6-di-tert-butyl-4-methy phenol, 0.1 part the polypropene composition of calcium stearate the results are shown in Table 1 230 ℃ of spinning
Table 1 embodiment 1-3
Embodiment 4
| Embodiment | 1 | 2 | 3 | |
| The drafting silk physicals | Fiber number (dtex) | 1.32 | 1.30 | 1.24 |
| Intensity (cN/dtex) | 5.59 | 4.24 | 4.54 | |
| Elongation (%) | 52.0 | 54.5 | 49.6 | |
With consist of melt flow index be 92 parts of chemical degradation modified polypropenes of 60,5 parts of above-mentioned polymerization-grade copolymerization or homo-polypropylene, 2 parts of HDPE, 1 part above-mentioned LDPE, 0.2 part 2,6-di-tert-butyl-4-methy phenol, 0.1 part the polypropene composition of calcium stearate the results are shown in Table 2 180 ℃ of spinning.
Embodiment 5
With melt flow index be 92 parts of chemical degradation modified polypropenes of 80,5 parts of above-mentioned polymerization-grade copolymerization or homo-polypropylene, 2 parts of HDPE, 1 part above-mentioned LDPE, 0.2 part 2,6-di-tert-butyl-4-methy phenol, 0.1 part the polypropene composition of calcium stearate the results are shown in Table 2 190 ℃ of spinning.
Embodiment 6
With melt flow index be 92 parts of chemical degradation modified polypropenes of 100,5 parts of above-mentioned polymerization-grade copolymerization or homo-polypropylene, 2 parts of HDPE, 1 part above-mentioned LDPE, 0.2 part 2,6-di-tert-butyl-4-methy phenol, 0.1 part the polypropene composition of calcium stearate the results are shown in Table 2 190 ℃ of spinning.
Embodiment 7
With melt flow index be 92 parts of chemical degradation modified polypropenes of 120,5 parts of above-mentioned polymerization-grade copolymerization or homo-polypropylene, 2 parts of HDPE, 1 part above-mentioned LDPE, 0.2 part 2,6-di-tert-butyl-4-methy phenol, 0.1 part the polypropene composition of calcium stearate the results are shown in Table 2 190 ℃ of spinning.
Table 2 embodiment 4-7
Embodiment 8
| Embodiment | 4 | 5 | 6 | 7 | |
| The drafting silk physicals | Fiber number (dtex) | 0.73 | 0.97 | 0.88 | 0.98 |
| Intensity (cN/dtex) | 7.43 | 5.36 | 4.83 | 4.80 | |
| Elongation (%) | 31.4 | 40.0 | 70.1 | 88.0 | |
With melt flow index be 95 parts of above-mentioned chemical degradation modified polypropenes of 60,3 parts of above-mentioned polymerization-grade copolymerization or homo-polypropylene, 2 parts of HDPE, 1 part above-mentioned LLDPE, 0.2 part 2,6-di-tert-butyl-4-methy phenol, 0.1 part the polypropene composition of calcium stearate the results are shown in Table 3 190 ℃ of spinning.
Embodiment 9
With melt flow index be 95 parts of above-mentioned chemical degradation modified polypropenes of 100,3 parts of above-mentioned polymerization-grade copolymerization or homo-polypropylene, 2 parts of HDPE, 1 part above-mentioned LLDPE, 0.2 part 2,6-di-tert-butyl-4-methy phenol, 0.1 part the polypropene composition of calcium stearate the results are shown in Table 3 190 ℃ of spinning.
Embodiment 10
With melt flow index be 93 parts of above-mentioned chemical degradation modified polypropenes of 60,2 parts of above-mentioned polymerization-grade copolymerization or homo-polypropylene, 2 parts of HDPE (MFI2-3), 1 part of HDPE (MFI6-7), 1 part above-mentioned LDPE, 0.2 part 2,6-di-tert-butyl-4-methy phenol, 0.1 part the polypropene composition of calcium stearate the results are shown in Table 3 190 ℃ of spinning.
Table 3 embodiment 8-12
Embodiment 11
| Embodiment | 8 | 9 | 10 | 11 | 12 | |
| The drafting silk physicals | Fiber number (dtex) | 1.03 | 0.92 | 0.96 | 0.99 | 1.0 |
| Intensity (cN/dtex) | 5.75 | 5.39 | 6.40 | 6.34 | 4.36 | |
| Elongation (%) | 48.6 | 40.4 | 42.2 | 38.3 | 52.1 | |
With melt flow index be 93 parts of above-mentioned chemical degradation modified polypropenes of 80,2 parts of above-mentioned polymerization-grade copolymerization or homo-polypropylene, 2 parts of HDPE (MFI2-3), 1 part of HDPE (MFI6-7), 1 part above-mentioned LDPE, 0.2 part 2,6-di-tert-butyl-4-methy phenol, 0.1 part the polypropene composition of calcium stearate the results are shown in Table 3 190 ℃ of spinning.
Embodiment 12
With melt flow index be 93 parts of above-mentioned chemical degradation modified polypropenes of 100,2 parts of above-mentioned polymerization-grade copolymerization or homo-polypropylene, 2 parts of HDPE (MFI2-3), 1 part of HDPE (MFI6-7), 1 part above-mentioned LDPE, 0.2 part 2,6-di-tert-butyl-4-methy phenol, 0.1 part the polypropene composition of calcium stearate the results are shown in Table 3 190 ℃ of spinning.
The contrast experiment of resin shows, melt flow index exists less than the composition of the little polymer grade polypropylene of 40 chemical degradation modified resin or itself and flow index that fluidity of molten is poor, the spinning pressure instability when the corresponding low-temp spinning, or the tension force of spun undrawn yarn is big, and wrapping wire moulding smoothly, drawing-off becomes qualified finished fiber smoothly.Have only melt temperature is brought up to higher spinning temperature, as about 260 ℃, spinning drawing-off more stably.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98117712A CN1123595C (en) | 1998-08-31 | 1998-08-31 | High-flowability polypropylene resin composition and its preparing process and usage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98117712A CN1123595C (en) | 1998-08-31 | 1998-08-31 | High-flowability polypropylene resin composition and its preparing process and usage |
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| Publication Number | Publication Date |
|---|---|
| CN1246496A CN1246496A (en) | 2000-03-08 |
| CN1123595C true CN1123595C (en) | 2003-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN98117712A Expired - Fee Related CN1123595C (en) | 1998-08-31 | 1998-08-31 | High-flowability polypropylene resin composition and its preparing process and usage |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101481479B (en) * | 2009-02-09 | 2011-10-26 | 松下家电研究开发（杭州）有限公司 | Polypropylene modified material and production method thereof |
| CN103740185B (en) * | 2014-01-14 | 2016-05-11 | 南京金陵塑胶化工有限公司 | A kind of atactic copolymerized polypropene coating material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054259A (en) * | 1991-03-12 | 1991-09-04 | 淄博市临淄区沥青制品厂 | Modified polypropene washing machine inner tub material and preparation |
| US5159018A (en) * | 1986-10-31 | 1992-10-27 | Sumitomo Chemical Co., Ltd. | Thermoplastic resin composition |
| CN1068603A (en) * | 1991-07-13 | 1993-02-03 | 中国科学院化学研究所 | The manufacture method of thin dawn and superfine denier polypropylene fibers |
| CN1151410A (en) * | 1995-11-24 | 1997-06-11 | 中国科学院化学研究所 | Fine denier and super-fine denier polypropylene alloy fibre and its prodn. method |
-
1998
- 1998-08-31 CN CN98117712A patent/CN1123595C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5159018A (en) * | 1986-10-31 | 1992-10-27 | Sumitomo Chemical Co., Ltd. | Thermoplastic resin composition |
| CN1054259A (en) * | 1991-03-12 | 1991-09-04 | 淄博市临淄区沥青制品厂 | Modified polypropene washing machine inner tub material and preparation |
| CN1068603A (en) * | 1991-07-13 | 1993-02-03 | 中国科学院化学研究所 | The manufacture method of thin dawn and superfine denier polypropylene fibers |
| CN1151410A (en) * | 1995-11-24 | 1997-06-11 | 中国科学院化学研究所 | Fine denier and super-fine denier polypropylene alloy fibre and its prodn. method |
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