CN105315548A - High-rigidity and high-toughness polypropylene material and preparation method therefor - Google Patents

High-rigidity and high-toughness polypropylene material and preparation method therefor Download PDF

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Publication number
CN105315548A
CN105315548A CN201410367844.XA CN201410367844A CN105315548A CN 105315548 A CN105315548 A CN 105315548A CN 201410367844 A CN201410367844 A CN 201410367844A CN 105315548 A CN105315548 A CN 105315548A
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China
Prior art keywords
rigidity
polypropylene
mass parts
ductility
toughness
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CN201410367844.XA
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Chinese (zh)
Inventor
柯卓
袁小亮
张宝强
魏玉函
邱敦瑞
左胜武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Sinopec Yangzi Petrochemical Co Ltd
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China Petroleum and Chemical Corp
Sinopec Yangzi Petrochemical Co Ltd
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Priority to CN201410367844.XA priority Critical patent/CN105315548A/en
Publication of CN105315548A publication Critical patent/CN105315548A/en
Pending legal-status Critical Current

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Abstract

The invention discloses high-rigidity and high-toughness polypropylene and a preparation method therefor. The high-rigidity and high-toughness polypropylene is prepared by carrying out reaction and extrusion on the following components in parts by mass: 45-75 parts of homo-polypropylene, 5-35 parts of a polyolefin elastomer, 15-50 parts of an additive and 0.1-2 parts of a nucleating agent. The high-rigidity and high-toughness polypropylene is prepared by the steps of: uniformly mixing the components in a high speed mixing stirrer; and carrying out melt extrusion and granulation in a Buss mixer or a twin-screw extruder, wherein the rotating speed of a screw is controlled at 150-300 r/m, and the reaction temperature is controlled at 190-260 DEG C. The raw materials adopted by the invention are simple, and all the components are commercial massive products which are wide in source and low in cost of raw material; the high-rigidity and high-toughness polypropylene is simple and convenient in preparation process, low in production cost and energy-saving and environmental-friendly; the prepared high-rigidity and high-toughness polypropylene composition maintains good rigidity and is high in toughness. The rigidity and toughness of the high-rigidity and high-toughness polypropylene can be adjusted in a relatively wide range by simply adjusting a raw material formula or a process condition. The Charpy notched impact strength can reach no less than 60 kJ/m2.

Description

A kind of high-rigidity high-ductility polypropylene material and preparation method thereof
Technical field
The invention belongs to field of polymer composite material, relate to a kind of high-rigidity high-ductility polypropylene and preparation method thereof, particularly one utilizes and prepares the polyacrylic method of high-rigidity high-ductility by Bu Shi mixing roll or twin screw extruder.
Background technology
Common homo-polypropylene fluidity of molten is good, goods good rigidly, but poor toughness, especially low-temperature flexibility is very poor, notched Izod impact strength is very low, greatly limit its range of application, especially can not be applied in the high impact resistant article such as automobile, packaging, building materials, not enough in order to overcome this, development high-rigidity high-ductility polypropylene has very important application value.
Usually polypropylene to be strengthened or the method for toughening modifying is blending method, both in polypropylene matrix resin, elastomerics was added, as polyolefin elastomer, ethylene-propylene rubber(EPR), styrene-ethylene-styrene multipolymer etc., but one side elastomerics is most and polypropylene matrix resin compatible is poor, be difficult to reach and be uniformly dispersed, toughening effect is poor, on the other hand elastomer modified polypropylene rigidity of material while toughness reinforcing can obviously reduce, this is because the elastomerics rigidity as dispersed phase particles in toughening modifying Pp System is weak, surrender very soon under stress outside and deformation occurs, the rigidity of whole toughening modifying Pp System is declined, therefore by elastomerics, toughening modifying is carried out to polypropylene and be difficult to reach just-tough performance and have both merely.
Report is had to have employed the way adding inorganic nano rigid particles in polypropylene toughening system at present, as patent CN1141335C adopts the chain modified rigid particles of flexible polymer to carry out toughness reinforcing, enhancing modified to polypropylene, wherein flexible polymer chain improves consistency between rigid particles and matrix acrylic resin as toughner, simultaneously in system, add part functionalities polyolefine, to obtain the comprehensive matrix material of rigidity, intensity, toughness properties.CN1072244C discloses a kind of with the filler modified polyacrylic method of the combined rigidity after silane coupled method process, obtains the polypropylene miser with outstanding toughness and good rigidity.CN101486816B discloses a kind of block copolymerization polypropylene elasticity of substitution body that adopts to improve the consistency between toughner and matrix resin, in system, add rigidity nanoparticle to improve the method for the rigidity of system simultaneously, final acquisition good toughness, the polypropylene miser that intensity is outstanding.CN1184258C discloses a kind of by epoxy resin cure reaction in-situ preparation micron order rigid particles carry out increase-volume, toughness reinforcing method by elastomerics, the method of this " in-situ generation " rigid particles preferably resolves the problem that rigid particles disperses in system, effectively raise polyacrylic strength and toughness, accomplish just-tough combination.CN1966564A discloses a kind of by nanometer grade calcium carbonate filled modified polypropylene system, is achieved the even raising of physicals and aging resistance by nano material characteristic and novel antioxidant.CN101503539B discloses a kind of by changing nucleator type in Pp System and proportion of composing improves polyacrylic impact resistance.
Summary of the invention
The object of the invention is to the deficiency for elastic body toughening modified polypropene system, both the problem that declines to a great extent of rigidity, a kind of high-rigidity high-ductility polypropylene is provided and prepares the polyacrylic method of high-rigidity high-ductility by blended, wherein using elastomerics as toughner, improving the rigidity of system using inorganic fill particle as strengthening weighting material, being a kind of handled easily, stable performance, pollution-free, energy-conserving and environment-protective prepare the polyacrylic method of high-rigidity high-ductility.
The technical solution used in the present invention is as follows: a kind of high-rigidity high-ductility polypropylene, and this high-rigidity high-ductility polypropylene comprises following component reaction extrude and obtain: homo-polypropylene 45 ~ 75 mass parts; Polyolefin elastomer 5 ~ 35 mass parts; Additive 15 ~ 50 mass parts; Nucleator 0.1 ~ 2 mass parts.
The melt flow rate (MFR) of described homo-polypropylene is 0.5 ~ 100g/10min (ASTMD1238E), and density is 0.920 ~ 0.980g/cm 3.
The melt flow rate (MFR) of described polyolefin elastomer is 0.5 ~ 25g/10min (ASTMD1238E).
Described additive comprises one or both and above composition in calcium carbonate, talcum powder, calcium stearate, Muscovitum, glass fibre, and particle diameter is 800 ~ 5000 orders.
Described nucleator is α nucleator, beta nucleater or transparent nucleater, and wherein α nucleator is TMP-5 or NAP-71, and beta nucleater is TMB-5 or WBG II, and transparent nucleater is 3988 or NX8000.
The polyacrylic preparation method of a kind of high-rigidity high-ductility, comprises the following steps:
(1) by even in high-speed mixing stirrer for mixing for the nucleator of the polyolefin elastomer of the homo-polypropylene of 45 ~ 75 mass parts, 5 ~ 35 mass parts, the additive of 15 ~ 50 mass parts and 0.1 ~ 2 mass parts;
(2) control at 150 ~ 300 revs/min by the mixture in step 1 at screw speed, temperature of reaction controls to melt extrude granulation in the Bu Shi mixing roll of 190 ~ 260 DEG C or twin screw extruder, obtained high-rigidity high-ductility polypropylene.
The invention has the advantages that: 1. raw material of the present invention is simple, and all components is commercialization mass product, wide material sources, and raw materials cost is low; 2. high-rigidity high-ductility polypropene composition preparation technology of the present invention is easy, production cost is low, energy-conserving and environment-protective; 3. the high-rigidity high-ductility polypropene composition rigidity of preparation keeps good, toughness is high, and can by simply adjusting composition of raw materials or processing condition, regulate its rigidity and toughness in wider scope, simply supported beam notched Izod impact strength can reach 60kJ/m 2above.
Embodiment
Describe the present invention below in conjunction with specific embodiment.Protection scope of the present invention is not limited with embodiment, but is limited by claim.
Embodiment 1
A kind of high-rigidity high-ductility polypropylene, is obtained by the polypropene composition reactive extrursion of following component:
Homo-polypropylene 60 mass parts; Polyolefin elastomer 20 mass parts; Calcium carbonate 20 mass parts; α nucleant agent N AP-71 adds 0.2 mass parts.
The polyacrylic preparation method of above-mentioned high-rigidity high-ductility:
Raw material is mixed in high-speed mixer according to proportion of composing, then by length-to-diameter ratio L/D=40, the twin screw extruder of diameter 35mm, screw speed 150 revs/min, melt extrude granulation under the highest 260 DEG C of conditions of temperature of reaction, obtain high-rigidity high-ductility acrylic resin.
Properties of sample and melt strength the results are shown in Table 1.
Embodiment 2
A kind of high-rigidity high-ductility polypropylene, is obtained by the polypropene composition reactive extrursion of following component:
Homo-polypropylene 45 mass parts; Polyolefin elastomer 15 mass parts; Talcum powder 40 mass parts; α nucleant agent N AP-71 adds 0.5 mass parts.
The polyacrylic preparation method of above-mentioned high-rigidity high-ductility:
Raw material is mixed according to proportion of composing in high-speed mixer, then by Bu Shi mixing roll, screw speed 200 revs/min, melt extrudes granulation under the highest 230 DEG C of conditions of temperature of reaction, obtain high-rigidity high-ductility acrylic resin.
Properties of sample and melt strength the results are shown in Table 1.
Embodiment 3
A kind of high-rigidity high-ductility polypropylene, is obtained by the polypropene composition reactive extrursion of following component:
Homo-polypropylene 75 mass parts; Polyolefin elastomer 10 mass parts; Calcium stearate 15 mass parts; α nucleant agent N AP-71 adds 0.4 mass parts.
The polyacrylic preparation method of above-mentioned high-rigidity high-ductility:
Raw material is mixed in high-speed mixer according to proportion of composing, then by length-to-diameter ratio L/D=40, the twin screw extruder of diameter 35mm, screw speed 300 revs/min, melt extrude granulation under the highest 190 DEG C of conditions of temperature of reaction, obtain high-rigidity high-ductility acrylic resin.
Properties of sample and melt strength the results are shown in Table 1.
Embodiment 4
A kind of high-rigidity high-ductility polypropylene, is obtained by the polypropene composition reactive extrursion of following component:
Homo-polypropylene 50 mass parts; Polyolefin elastomer 35 mass parts; Muscovitum 15 mass parts; α nucleant agent N AP-71 adds 0.2 mass parts.
The polyacrylic preparation method of above-mentioned high-rigidity high-ductility:
Raw material is mixed in high-speed mixer according to proportion of composing, then by length-to-diameter ratio L/D=40, the twin screw extruder of diameter 35mm, screw speed 300 revs/min, melt extrude granulation under the highest 240 DEG C of conditions of temperature of reaction, obtain high-rigidity high-ductility acrylic resin.
Properties of sample and melt strength the results are shown in Table 1.
Embodiment 5
A kind of high-rigidity high-ductility polypropylene, is obtained by the polypropene composition reactive extrursion of following component:
Homo-polypropylene 45 mass parts; Polyolefin elastomer 5 mass parts; Glass fibre 50 mass parts; α nucleant agent N AP-71 adds 0.1 mass parts.
The polyacrylic preparation method of above-mentioned high-rigidity high-ductility:
Raw material is mixed according to proportion of composing in high-speed mixer, then by Bu Shi mixing roll, screw speed 200 revs/min, melt extrudes granulation under the highest 260 DEG C of conditions of temperature of reaction, obtain high-rigidity high-ductility acrylic resin.
Embodiment 6
A kind of high-rigidity high-ductility polypropylene, is obtained by the polypropene composition reactive extrursion of following component:
Homo-polypropylene 45 mass parts; Polyolefin elastomer 10 mass parts; Talcum powder 45 mass parts; Beta nucleater TMB-5 adds 0.3 mass parts.
The polyacrylic preparation method of above-mentioned high-rigidity high-ductility:
Raw material is mixed according to proportion of composing in high-speed mixer, then by Bu Shi mixing roll, screw speed 200 revs/min, melt extrudes granulation under the highest 260 DEG C of conditions of temperature of reaction, obtain high-rigidity high-ductility acrylic resin.
Embodiment 7
A kind of high-rigidity high-ductility polypropylene, is obtained by the polypropene composition reactive extrursion of following component:
Homo-polypropylene 45 mass parts; Polyolefin elastomer 20 mass parts; Calcium carbonate 35 mass parts; Beta nucleater TMB-5 adds 0.2 mass parts.
The polyacrylic preparation method of above-mentioned high-rigidity high-ductility:
Raw material is mixed according to proportion of composing in high-speed mixer, then by Bu Shi mixing roll, screw speed 200 revs/min, melt extrudes granulation under the highest 260 DEG C of conditions of temperature of reaction, obtain high-rigidity high-ductility acrylic resin.
Properties of sample and shock strength the results are shown in Table 1.
Table 1 embodiment 1-7 gained high-rigidity high-ductility Properties of Polypropylene and shock strength result

Claims (6)

1. a high-rigidity high-ductility polypropylene, is characterized in that this high-rigidity high-ductility polypropylene comprises following component reaction extrude and obtain: homo-polypropylene 45 ~ 75 mass parts; Polyolefin elastomer 5 ~ 35 mass parts; Additive 15 ~ 50 mass parts; Nucleator 0.1 ~ 2 mass parts.
2. high-rigidity high-ductility polypropylene according to claim 1, is characterized in that: the melt flow rate (MFR) of described homo-polypropylene is 0.5 ~ 100g/10min, and density is 0.920 ~ 0.980g/cm 3.
3. high-rigidity high-ductility polypropylene according to claim 1, is characterized in that: the melt flow rate (MFR) of described polyolefin elastomer is 0.5 ~ 25g/10min.
4. high-rigidity high-ductility polypropylene according to claim 1, is characterized in that: described additive comprises one or both and above composition in calcium carbonate, talcum powder, calcium stearate, Muscovitum, glass fibre, and particle diameter is 800 ~ 5000 orders.
5. high-rigidity high-ductility polypropylene according to claim 1, it is characterized in that: described nucleator is α nucleator, beta nucleater or transparent nucleater, wherein α nucleator is TMP-5 or NAP-71, and beta nucleater is TMB-5 or WBG II, and transparent nucleater is 3988 or NX8000.
6. the polyacrylic preparation method of high-rigidity high-ductility according to any one of claim 1 to 5, is characterized in that comprising the following steps:
(1) by even in high-speed mixing stirrer for mixing for the nucleator of the polyolefin elastomer of the homo-polypropylene of 45 ~ 75 mass parts, 5 ~ 35 mass parts, the additive of 15 ~ 50 mass parts and 0.1 ~ 2 mass parts;
(2) control at 150 ~ 300 revs/min by the mixture in step 1 at screw speed, temperature of reaction controls to melt extrude granulation in the Bu Shi mixing roll of 190 ~ 260 DEG C or twin screw extruder, obtained high-rigidity high-ductility polypropylene.
CN201410367844.XA 2014-07-29 2014-07-29 High-rigidity and high-toughness polypropylene material and preparation method therefor Pending CN105315548A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107955271A (en) * 2017-11-21 2018-04-24 天津金发新材料有限公司 A kind of height is leapt high firm, low smell, the whisker modified material of low linear polypropylene
CN108003476A (en) * 2017-11-21 2018-05-08 天津金发新材料有限公司 A kind of height leap high just, cold-hot alternation, low linear polypropylene automotive interior material
CN108976589A (en) * 2017-05-31 2018-12-11 中国石油化工股份有限公司 Polypropylene toughening master batch and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103601976A (en) * 2013-11-27 2014-02-26 广东聚石化学股份有限公司 Glass fiber reinforced polypropylene material for swimming pool staircase footplate and preparation method of glass fiber reinforced polypropylene material
CN103756132A (en) * 2013-12-28 2014-04-30 重庆普利特新材料有限公司 Wear-resisting polypropylene composite material and preparation method thereof
CN103923381A (en) * 2013-12-28 2014-07-16 上海普利特复合材料股份有限公司 High-modulus and ultrahigh-impact polypropylene composite material and its preparation method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103601976A (en) * 2013-11-27 2014-02-26 广东聚石化学股份有限公司 Glass fiber reinforced polypropylene material for swimming pool staircase footplate and preparation method of glass fiber reinforced polypropylene material
CN103756132A (en) * 2013-12-28 2014-04-30 重庆普利特新材料有限公司 Wear-resisting polypropylene composite material and preparation method thereof
CN103923381A (en) * 2013-12-28 2014-07-16 上海普利特复合材料股份有限公司 High-modulus and ultrahigh-impact polypropylene composite material and its preparation method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108976589A (en) * 2017-05-31 2018-12-11 中国石油化工股份有限公司 Polypropylene toughening master batch and preparation method thereof
CN108976589B (en) * 2017-05-31 2021-03-02 中国石油化工股份有限公司 Polypropylene toughening master batch and preparation method thereof
CN107955271A (en) * 2017-11-21 2018-04-24 天津金发新材料有限公司 A kind of height is leapt high firm, low smell, the whisker modified material of low linear polypropylene
CN108003476A (en) * 2017-11-21 2018-05-08 天津金发新材料有限公司 A kind of height leap high just, cold-hot alternation, low linear polypropylene automotive interior material

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Application publication date: 20160210