CN109721834A - With the PP composite material and preparation method thereof of higher toughness under a kind of low temperature - Google Patents
With the PP composite material and preparation method thereof of higher toughness under a kind of low temperature Download PDFInfo
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- CN109721834A CN109721834A CN201811560630.9A CN201811560630A CN109721834A CN 109721834 A CN109721834 A CN 109721834A CN 201811560630 A CN201811560630 A CN 201811560630A CN 109721834 A CN109721834 A CN 109721834A
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Abstract
The present invention discloses the PP composite material under a kind of low temperature with higher toughness, including 60-80 parts of polypropylene；10-25 parts of long glass fibres；3-12 parts of compatilizer；Four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] 1-10 parts of pentaerythritol ester passes through long glass fibres and four [β-(3 is added in polypropylene, 5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, the effect for cooperating compatilizer simultaneously, so that the low-temperature flexibility of PP composite material is good, stretch capability is big, antistatic effect is good, thermal stability is good；Simultaneously invention additionally discloses a kind of preparation method of the PP composite material under low temperature with higher toughness, preparation process is simple, and equipment and raw material are easy to get, therefore is suitble to factory scale production.
Description
Technical field
The invention belongs to PP composite material manufacturing technology fields, and in particular to higher toughness under a kind of low temperature
PP composite material and preparation method thereof.
Background technique
The polypropylene material of polymer-type has lower heat distortion temperature (100 DEG C), low transparency, low-luster, gathers
The impact strength for closing the polypropylene material of object type increases with the increase of ethylene contents, and intensity is with the increase of ethylene contents
And it reduces.The vicat softening temperature of the polypropylene material of polymer-type is 150 DEG C, and vicat softening temperature is higher, therefore material
Dimensional stability is preferable when heated, and thermal deformation is smaller, and heat-resistant deforming ability is better.Further, since the polypropylene material of polymer-type
The crystallinity of material is higher, therefore the surface rigidity of this kind of material is strong, and anti-scratch characteristic is fine.Polypropylene material is widely used in making
In numerous industries such as medicine, chemical industry, petroleum, chlor-alkali, pharmacy, environmental protection, light industry, printing and dyeing, food, metallurgy and water process.
But existing polypropylene material is there is also some defects, such as the low temperature impact strength of polypropylene material are lower,
I.e. low-temperature flexibility is poor.Therefore, polypropylene material is restricted in low temperature with field.In order to expand making for polypropylene material
With field, need to carry out low temperature toughening modifying to polypropylene material.Currently, the technology for improving polypropylene material low-temperature flexibility
It has occurred.The hair of entitled " a kind of super low-temperature resistant PP composite material and preparation method thereof " (CN104086895A)
A kind of bright super low-temperature resistant PP composite material of patent disclosure, this kind of PP composite material are by increasing cross-linked ethylene-α alkene
Hydrocarbon copolymer and ultra-high molecular weight polyethylene elastomer are realized, but cross-linked ethylene-alpha olefin copolymer needs are prepared separately,
Its synthesis technology is complicated, while notch impact strength is not high under its low temperature.
Summary of the invention
The technical problem to be solved by the invention is to provide the PP composite materials under a kind of low temperature with higher toughness
And preparation method thereof, solve the technical problem of the low-temperature flexibility difference of PP composite material in the prior art.
In order to solve the above technical problems, the technical solution adopted by the present invention: under a kind of low temperature with higher toughness poly- third
Alkene composite material, which is characterized in that including following raw material components and parts by weight:
The filament diameter of the quartz fibre is 8-14 μm, density 2.4-2.6g/cm3, softening point is 580-650 DEG C.
Preferably, including following raw material components and parts by weight:
Preferably, the length of the quartz fibre is 10-20mm.
Preferably, the compatilizer is maleic anhydride inoculated polypropylene.
Preferably, the melt index (MI) of the maleic anhydride inoculated polypropylene is 50-55g/10min (190 DEG C, 2.16kg),
Tensile strength is 26-30MPa, and fusing point is 143-150 DEG C.
Preferably, the density of the maleic anhydride inoculated polypropylene is 0.7-0.93g/cm3, grafting rate 0.5-3%.
The preparation method of PP composite material under a kind of low temperature with higher toughness, which is characterized in that including following
Step:
(1) according to raw material proportioning by polypropylene, long glass fibres, compatilizer and four [β-(3,5- di-t-butyl -4- hydroxyls
Base phenyl) propionic acid] pentaerythritol ester be uniformly mixed；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in extruder.
Preferably, the mixing temperature is 80-100 DEG C.
Preferably, the extrusion temperature of the extruder is 180-200 DEG C, and the revolving speed of screw rod is 300- in extruder
350rpm。
Beneficial effects of the present invention: the present invention discloses the PP composite material under a kind of low temperature with higher toughness, leads to
It crosses and long glass fibres and four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters is added in polypropylene,
Cooperate the effect of compatilizer simultaneously, so that the low-temperature flexibility of PP composite material is good, stretch capability is big, antistatic effect is good,
Thermal stability is good；Invention additionally discloses a kind of preparation sides of the PP composite material under low temperature with higher toughness simultaneously
Method, preparation process is simple, and equipment and raw material are easy to get, therefore is suitble to factory scale production.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1:
With the PP composite material of higher toughness, including following raw material components and parts by weight under a kind of low temperature:
Wherein, the length of quartz fibre is 18mm, and filament diameter is 10 μm, density 2.58g/cm3, softening point 620
℃。
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 52g/10min
(190 DEG C, 2.16kg), tensile strength 28MPa, fusing point are 148 DEG C.
A kind of preparation method of PP composite material under low temperature with higher toughness, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
Comparative example 11:
With the PP composite material of higher toughness, including following raw material components and parts by weight under a kind of low temperature:
Wherein, the length of quartz fibre is 19mm, and filament diameter is 13 μm, density 2.6g/cm3, softening point 620
℃。
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 52g/10min
(190 DEG C, 2.16kg), tensile strength 28MPa, fusing point are 148 DEG C.
A kind of preparation method of PP composite material under low temperature with higher toughness, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
Comparative example 12:
With the PP composite material of higher toughness, including following raw material components and parts by weight under a kind of low temperature:
Wherein, the length of quartz fibre is 12mm, and filament diameter is 9 μm, density 2.46g/cm3, softening point 620
℃。
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 52g/10min
(190 DEG C, 2.16kg), tensile strength 28MPa, fusing point are 148 DEG C.
A kind of preparation method of PP composite material under low temperature with higher toughness, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
Comparative example 13:
A kind of PP composite material, including following raw material components and parts by weight:
Wherein, the length of quartz fibre is 8mm, and filament diameter is 6 μm, density 2.3g/cm3, softening point is 620 DEG C.
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 52g/10min
(190 DEG C, 2.16kg), tensile strength 28MPa, fusing point are 148 DEG C.
A kind of preparation method of PP composite material, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
Comparative example 14:
A kind of PP composite material, including following raw material components and parts by weight:
Wherein, the length of quartz fibre is 22mm, and filament diameter is 16 μm, density 2.7g/cm3, softening point 620
℃。
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 52g/10min
(190 DEG C, 2.16kg), tensile strength 28MPa, fusing point are 148 DEG C.
A kind of preparation method of PP composite material, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
Embodiment 2:
With the PP composite material of higher toughness, including following raw material components and parts by weight under a kind of low temperature:
Wherein, the length of quartz fibre is 18mm, and filament diameter is 10 μm, density 2.58g/cm3, softening point 620
℃。
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 52g/10min
(190 DEG C, 2.16kg), tensile strength 28MPa, fusing point are 148 DEG C.
A kind of preparation method of PP composite material under low temperature with higher toughness, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
Comparative example 21:
With the PP composite material of higher toughness, including following raw material components and parts by weight under a kind of low temperature:
Wherein, the length of quartz fibre is 18mm, and filament diameter is 10 μm, density 2.58g/cm3, softening point 640
℃。
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 52g/10min
(190 DEG C, 2.16kg), tensile strength 28MPa, fusing point are 148 DEG C.
A kind of preparation method of PP composite material under low temperature with higher toughness, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
Comparative example 22:
With the PP composite material of higher toughness, including following raw material components and parts by weight under a kind of low temperature:
Wherein, the length of quartz fibre is 18mm, and filament diameter is 10 μm, density 2.58g/cm3, softening point 590
℃。
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 52g/10min
(190 DEG C, 2.16kg), tensile strength 28MPa, fusing point are 148 DEG C.
A kind of preparation method of PP composite material under low temperature with higher toughness, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
Comparative example 23:
A kind of PP composite material, including following raw material components and parts by weight:
Wherein, the length of quartz fibre is 18mm, and filament diameter is 10 μm, density 2.58g/cm3, softening point 566
℃。
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 52g/10min
(190 DEG C, 2.16kg), tensile strength 28MPa, fusing point are 148 DEG C.
A kind of preparation method of PP composite material, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
Comparative example 24:
A kind of PP composite material, including following raw material components and parts by weight:
Wherein, the length of quartz fibre is 18mm, and filament diameter is 10 μm, density 2.58g/cm3, softening point 660
℃。
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 52g/10min
(190 DEG C, 2.16kg), tensile strength 28MPa, fusing point are 148 DEG C.
A kind of preparation method of PP composite material, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
Embodiment 3:
With the PP composite material of higher toughness, including following raw material components and parts by weight under a kind of low temperature:
Wherein, the length of quartz fibre is 18mm, and filament diameter is 10 μm, density 2.58g/cm3, softening point 620
℃。
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 52g/10min
(190 DEG C, 2.16kg), tensile strength 28MPa, fusing point are 148 DEG C.
A kind of preparation method of PP composite material under low temperature with higher toughness, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
Comparative example 31:
With the PP composite material of higher toughness, including following raw material components and parts by weight under a kind of low temperature:
Wherein, the length of quartz fibre is 18mm, and filament diameter is 10 μm, density 2.58g/cm3, softening point 620
℃。
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 54g/10min
(190 DEG C, 2.16kg), tensile strength 30MPa, fusing point are 148 DEG C.
A kind of preparation method of PP composite material under low temperature with higher toughness, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
Comparative example 32:
With the PP composite material of higher toughness, including following raw material components and parts by weight under a kind of low temperature:
Wherein, the length of quartz fibre is 18mm, and filament diameter is 10 μm, density 2.58g/cm3, softening point 620
℃。
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 51g/10min
(190 DEG C, 2.16kg), tensile strength 27MPa, fusing point are 148 DEG C.
A kind of preparation method of PP composite material under low temperature with higher toughness, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
Comparative example 33:
A kind of PP composite material, including following raw material components and parts by weight:
Wherein, the length of quartz fibre is 18mm, and filament diameter is 10 μm, density 2.58g/cm3, softening point 620
℃。
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 46g/10min
(190 DEG C, 2.16kg), tensile strength 25MPa, fusing point are 148 DEG C.
A kind of preparation method of PP composite material, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
Comparative example 34:
A kind of PP composite material, including following raw material components and parts by weight:
Wherein, the length of quartz fibre is 18mm, and filament diameter is 10 μm, density 2.58g/cm3, softening point 620
℃。
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 60g/10min
(190 DEG C, 2.16kg), tensile strength 32MPa, fusing point are 148 DEG C.
A kind of preparation method of PP composite material, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
Embodiment 4:
With the PP composite material of higher toughness, including following raw material components and parts by weight under a kind of low temperature:
Wherein, the length of quartz fibre is 18mm, and filament diameter is 10 μm, density 2.58g/cm3, softening point 620
℃。
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 52g/10min
(190 DEG C, 2.16kg), tensile strength 28MPa, fusing point are 148 DEG C.
A kind of preparation method of PP composite material under low temperature with higher toughness, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
Comparative example 41:
With the PP composite material of higher toughness, including following raw material components and parts by weight under a kind of low temperature:
Wherein, the length of quartz fibre is 18mm, and filament diameter is 10 μm, density 2.58g/cm3, softening point 620
℃。
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 52g/10min
(190 DEG C, 2.16kg), tensile strength 28MPa, fusing point are 149 DEG C.
A kind of preparation method of PP composite material under low temperature with higher toughness, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
Comparative example 42:
With the PP composite material of higher toughness, including following raw material components and parts by weight under a kind of low temperature:
Wherein, the length of quartz fibre is 18mm, and filament diameter is 10 μm, density 2.58g/cm3, softening point 620
℃。
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 52g/10min
(190 DEG C, 2.16kg), tensile strength 28MPa, fusing point are 144 DEG C.
A kind of preparation method of PP composite material under low temperature with higher toughness, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
Comparative example 43:
A kind of PP composite material, including following raw material components and parts by weight:
Wherein, the length of quartz fibre is 18mm, and filament diameter is 10 μm, density 2.58g/cm3, softening point 620
℃。
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 52g/10min
(190 DEG C, 2.16kg), tensile strength 28MPa, fusing point are 140 DEG C.
A kind of preparation method of PP composite material, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
Comparative example 44:
A kind of PP composite material, including following raw material components and parts by weight:
Wherein, the length of quartz fibre is 18mm, and filament diameter is 10 μm, density 2.58g/cm3, softening point 620
℃。
The density of maleic anhydride inoculated polypropylene is 0.81g/cm3, grafting rate 1.9%, melt index (MI) 52g/10min
(190 DEG C, 2.16kg), tensile strength 28MPa, fusing point are 153 DEG C.
A kind of preparation method of PP composite material, comprising the following steps:
(1) according to raw material proportioning by polypropylene, quartz fibre, maleic anhydride inoculated polypropylene and four [β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester be added in high-speed mixer be uniformly mixed, wherein mixing temperature be 80-
100℃；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in double screw extruder, then dries, obtains
To PP composite material；Wherein the extrusion temperature of double screw extruder is 180-200 DEG C, and the revolving speed of screw rod is in extruder
300-350rpm。
The polypropylene pipe of polypropylene pipe and market purchasing to embodiment 1-4 preparation, is marked according to respective test
Standard is tested for the property, and wherein tensile strength uses standard ISO-527-2, and bending strength uses standard ISO-178, and resistivity is adopted
With standard ANSI/ESD, impact strength uses standard GB/1943-2007, and heat distortion temperature uses standard UL94.Experimental result is shown in
Table 1.
As seen from the above table, compared to the polypropylene pipe of market purchasing, the tensile strength of 1-4 of the embodiment of the present invention and curved
Qu Qiangdu is all larger than the tensile strength and bending strength value of the polypropylene pipe of market purchasing.Tensile strength and bending strength
Value is bigger, shows that the tensile property of PP composite material is stronger.The resistivity of 1-4 of the embodiment of the present invention and gathering for market purchasing
The resistivity value of Propylene pipes is close.Resistivity value is lower, shows that the antistatic property of PP composite material is better.The present invention
Embodiment 1-4 at -5 DEG C notch impact strength much larger than market purchasing polypropylene pipe at -5 DEG C notch impact strength
Value.Notch impact strength is higher, shows that the low-temperature flexibility of PP composite material is better.The thermal change of 1-4 of the embodiment of the present invention
Shape temperature is greater than the heat distortion temperature value of the polypropylene pipe of market purchasing.Heat distortion temperature value is bigger, shows polypropylene material
Thermal stability it is better.It follows that compared to the existing PP composite material in market, polypropylene composite materials of the present invention
Material stretch capability is big, antistatic effect is good, low-temperature flexibility is good, thermal stability is good.
The polypropylene pipe of the polypropylene pipe and comparative example 11-14 preparation that prepared to embodiment 1, according to respective survey
Test-object standard is tested for the property, and the results are shown in Table 2.
Table 2
As shown in Table 2, the density in composite material in quartz fibre, length and diameter will affect composite material
Tensile property, antistatic property, toughness and heat resistance.After the density of quartz fibre, diameter and length increase, polypropylene
Tensile strength, bending strength, -5 DEG C of notch impact strengths and the resistivity of the pipeline of composite material preparation increase, but thermal change
Shape temperature reduce, i.e., PP composite material preparation pipeline tensile property, low-temperature flexibility enhancing, and antistatic property and
Heat resistance weakens；After the filament diameter of quartz fibre, length and density reduce, the pipeline of PP composite material preparation
Tensile strength, bending strength, -5 DEG C of notch impact strengths and resistivity reduce, but heat distortion temperature increases, i.e. polypropylene
The tensile property of the pipeline of composite material preparation, low-temperature flexibility weaken, and antistatic property and heat resistance enhancing.
The polypropylene pipe of the polypropylene pipe and comparative example 21-24 preparation that prepared to embodiment 2, according to respective survey
Test-object standard is tested for the property, and the results are shown in Table 3.
Table 3
As shown in Table 3, the softening point in composite material in quartz fibre also will affect the tensile property of composite material, toughness
And heat resistance.After the softening point of quartz fibre increases, the tensile strength of the pipeline of PP composite material preparation, bending are strong
Degree and -5 DEG C of notch impact strengths reduce, but heat distortion temperature increases, i.e. the drawing of the pipeline of PP composite material preparation
Performance, low-temperature flexibility decrease are stretched, and heat resistance enhances；After the softening point of quartz fibre reduces, PP composite material preparation
The tensile strength of pipeline, bending strength and -5 DEG C of notch impact strengths increase, but heat distortion temperature reduces, i.e., poly- third
The tensile property of the pipeline of alkene composite material preparation, low-temperature flexibility enhancing, and heat resistance weakens.
The polypropylene pipe of the polypropylene pipe and comparative example 31-34 preparation that prepared to embodiment 3, according to respective survey
Test-object standard is tested for the property, and the results are shown in Table 4.
Table 4
As shown in Table 4, the melt index (MI) in composite material in maleic anhydride inoculated polypropylene, tensile strength also will affect multiple
Tensile property, antistatic property, toughness and the heat resistance of condensation material.Melt index (MI) and drawing in maleic anhydride inoculated polypropylene
Stretch that intensity is bigger, tensile strength, bending strength and -5 DEG C of notch impact strengths of the pipeline of PP composite material preparation are got over
Greatly, resistivity and heat distortion temperature are smaller, i.e., the tensile property of pipeline of PP composite material preparation, low-temperature flexibility and
Antistatic property enhancing, but heat resistance weakens；Melt index (MI) and tensile strength in maleic anhydride inoculated polypropylene is smaller,
The tensile strength of pipeline of PP composite material preparation, bending strength and -5 DEG C of notch impact strengths are smaller, resistivity with
And heat distortion temperature is higher, i.e., PP composite material preparation pipeline tensile property, low-temperature flexibility and antistatic effect
Weaken, but heat resistance enhances.
The polypropylene pipe of the polypropylene pipe and comparative example 41-44 preparation that prepared to embodiment 4, according to respective survey
Test-object standard is tested for the property, and the results are shown in Table 5.
Table 5
As shown in Table 5, the fusing point in composite material in maleic anhydride inoculated polypropylene also will affect the stretching of composite material
Performance, antistatic property, toughness and heat resistance.Fusing point in maleic anhydride inoculated polypropylene increases, PP composite material system
Tensile strength, bending strength, -5 DEG C of notch impact strengths of standby pipeline reduce, and resistivity increases, and heat distortion temperature increases, i.e.,
Tensile property, low-temperature flexibility and the antistatic property of the pipeline of PP composite material preparation weaken, heat resistance enhancing；Horse
Fusing point in maleic anhydride grafted polypropylene reduces, tensile strength, the bending strength, -5 DEG C of the pipeline of PP composite material preparation
Notch impact strength increases, and resistivity reduces, and heat distortion temperature reduces, i.e. the draftability of the pipeline of PP composite material preparation
Energy, low-temperature flexibility and antistatic property enhancing, heat resistance weaken.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (9)
1. with the PP composite material of higher toughness under a kind of low temperature, which is characterized in that including following raw material components and
Parts by weight:
The filament diameter of the quartz fibre is 8-14 μm, density 2.4-2.6g/cm3, softening point is 580-650 DEG C.
2. according to claim 1 with the PP composite material of higher toughness under a kind of low temperature, which is characterized in that including
Following raw material components and parts by weight:
3. according to claim 1 with the PP composite material of higher toughness under a kind of low temperature, which is characterized in that described
The length of quartz fibre is 10-20mm.
4. according to claim 1 with the PP composite material of higher toughness under a kind of low temperature, which is characterized in that described
Compatilizer is maleic anhydride inoculated polypropylene.
5. according to claim 4 with the PP composite material of higher toughness under a kind of low temperature, which is characterized in that described
The melt index (MI) of maleic anhydride inoculated polypropylene be 50-55g/10min (190 DEG C, 2.16kg), tensile strength 26-30MPa,
Fusing point is 143-150 DEG C.
6. according to claim 5 with the PP composite material of higher toughness under a kind of low temperature, which is characterized in that described
The density of maleic anhydride inoculated polypropylene is 0.7-0.93g/cm3, grafting rate 0.5-3%.
7. the PP composite material with higher toughness under a kind of low temperature described in a kind of -6 any one according to claim 1
Preparation method, which comprises the following steps:
(1) according to raw material proportioning by polypropylene, long glass fibres, compatilizer and four [β-(3,5- di-t-butyl -4- hydroxy benzenes
Base) propionic acid] pentaerythritol ester be uniformly mixed；
(2) raw material being uniformly mixed in step (1) is added to extruding pelletization in extruder.
8. the preparation method of the PP composite material under a kind of low temperature with higher toughness according to claim 7, special
Sign is that the mixing temperature is 80-100 DEG C.
9. the preparation method of the PP composite material under a kind of low temperature with higher toughness according to claim 7, special
Sign is that the extrusion temperature of the extruder is 180-200 DEG C, and the revolving speed of screw rod is 300-350rpm in extruder.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110527188A (en) * | 2019-08-23 | 2019-12-03 | 励塑新材料科技(嘉兴)有限公司 | A kind of high wave transparent polypropene composition and preparation method thereof |
| CN111004451A (en) * | 2019-12-27 | 2020-04-14 | 上海邦中新材料有限公司 | High-strength high-heat-resistance polypropylene glass fiber reinforced belt and preparation method thereof |
| CN112457593A (en) * | 2020-11-30 | 2021-03-09 | 天津永高塑业发展有限公司 | High-strength and high-toughness PPR pipe and preparation method thereof |
| CN112778651A (en) * | 2020-12-25 | 2021-05-11 | 上海邦中新材料有限公司 | PPR material with high low-temperature toughness and high flame retardance and preparation method thereof |
| CN112812442A (en) * | 2020-12-25 | 2021-05-18 | 上海邦中高分子材料股份有限公司 | PPR material with high low-temperature toughness and high oxygen resistance and preparation method thereof |
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2018
- 2018-12-20 CN CN201811560630.9A patent/CN109721834A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110527188A (en) * | 2019-08-23 | 2019-12-03 | 励塑新材料科技(嘉兴)有限公司 | A kind of high wave transparent polypropene composition and preparation method thereof |
| CN111004451A (en) * | 2019-12-27 | 2020-04-14 | 上海邦中新材料有限公司 | High-strength high-heat-resistance polypropylene glass fiber reinforced belt and preparation method thereof |
| CN112457593A (en) * | 2020-11-30 | 2021-03-09 | 天津永高塑业发展有限公司 | High-strength and high-toughness PPR pipe and preparation method thereof |
| CN112778651A (en) * | 2020-12-25 | 2021-05-11 | 上海邦中新材料有限公司 | PPR material with high low-temperature toughness and high flame retardance and preparation method thereof |
| CN112812442A (en) * | 2020-12-25 | 2021-05-18 | 上海邦中高分子材料股份有限公司 | PPR material with high low-temperature toughness and high oxygen resistance and preparation method thereof |
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