CN114507400B - Modified glass fiber reinforced polypropylene composition and preparation method thereof - Google Patents
Modified glass fiber reinforced polypropylene composition and preparation method thereof Download PDFInfo
- Publication number
- CN114507400B CN114507400B CN202011163206.8A CN202011163206A CN114507400B CN 114507400 B CN114507400 B CN 114507400B CN 202011163206 A CN202011163206 A CN 202011163206A CN 114507400 B CN114507400 B CN 114507400B
- Authority
- CN
- China
- Prior art keywords
- glass fiber
- medium
- alkali glass
- modified
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003365 glass fiber Substances 0.000 title claims abstract description 97
- -1 polypropylene Polymers 0.000 title claims abstract description 64
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 59
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 59
- 239000000203 mixture Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000003513 alkali Substances 0.000 claims abstract description 53
- 238000001035 drying Methods 0.000 claims abstract description 12
- 235000013873 oxidized polyethylene wax Nutrition 0.000 claims abstract description 12
- 239000004209 oxidized polyethylene wax Substances 0.000 claims abstract description 12
- 239000000839 emulsion Substances 0.000 claims abstract description 6
- 238000007598 dipping method Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 9
- 238000002791 soaking Methods 0.000 claims description 6
- 239000003963 antioxidant agent Substances 0.000 claims description 5
- 230000003078 antioxidant effect Effects 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 2
- 239000012467 final product Substances 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 abstract description 14
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 abstract description 13
- 239000004698 Polyethylene Substances 0.000 abstract description 6
- 229920000573 polyethylene Polymers 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 11
- 239000007822 coupling agent Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 150000004645 aluminates Chemical class 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical group N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/06—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
- C08J5/08—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials glass fibres
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/12—General methods of coating; Devices therefor
- C03C25/16—Dipping
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/24—Coatings containing organic materials
- C03C25/26—Macromolecular compounds or prepolymers
- C03C25/28—Macromolecular compounds or prepolymers obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C03C25/30—Polyolefins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/14—Copolymers of propene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/08—Ingredients agglomerated by treatment with a binding agent
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- General Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a modified glass fiber reinforced polypropylene composition and a preparation method thereof, wherein the composition is prepared from the following components in parts by weight: 100 parts of polypropylene, 10-50 parts of modified medium-alkali glass fiber, 0.3-0.5 part of antioxidant 1010 and 0.3-0.5 part of antioxidant 168; the modified medium-alkali glass fiber is prepared by the following preparation method: and adding the medium-alkali glass fiber into oxidized polyethylene wax emulsion for dipping treatment, and then taking out and drying to obtain the modified medium-alkali glass fiber. According to the invention, the medium-alkali glass fiber is modified by oxidized polyethylene wax, on one hand, carboxyl groups on the surface of the oxidized polyethylene wax can be better combined with hydroxyl groups on the surface of the medium-alkali glass fiber, and the interface binding force of the oxidized polyethylene wax and the medium-alkali glass fiber is enhanced; on the other hand, the polyethylene wax can better coat the medium-alkali glass fiber monofilaments, and can uniformly disperse the medium-alkali glass fiber monofilaments in polypropylene, so that the tensile strength, bending strength and impact strength of the polypropylene composition can be greatly enhanced.
Description
Technical Field
The invention belongs to the technical field of polymer composite materials, and particularly relates to a modified glass fiber reinforced polypropylene composition and a preparation method thereof.
Background
Polypropylene (PP) is a crystalline polymer with regular structure, is white granular or powder, is odorless, nontoxic and light thermoplastic resin, has the advantages of easy processing, good impact strength, flexibility, good electrical insulation and the like, and has wide application in the aspects of automobile industry, household appliances, electronics, packaging, building materials, furniture and the like.
The glass fiber reinforced polypropylene is a light high-strength engineering structural material, and because the fiber has good mechanical properties and the load is transmitted through the fiber when external force acts, the tensile, bending, impact strength, creep resistance and fatigue resistance of the glass fiber reinforced polypropylene are far better than those of non-reinforced polypropylene, and the glass fiber reinforced polypropylene has the advantages of excellent rigidity, toughness, warping resistance and the like. Glass fiber reinforced polypropylene is very widely used, and about 50% of glass fiber reinforced polypropylene is used in the automotive industry in western europe. The properties of glass fiber reinforced polypropylene depend mainly on the following factors: (1) glass fiber content: generally, the higher the glass fiber content is, the higher the mechanical property of glass fiber reinforced polypropylene is, but the higher the glass fiber content is, the serious abrasion to processing equipment is caused, and the brittleness and the density of the material are easily increased; meanwhile, when the glass fiber content exceeds a certain critical value (50 wt percent), the mechanical property is reduced along with the further increase of the glass fiber content; (2) the length of the glass fiber in the resin matrix; (3) the adhesion between the glass fiber and the resin matrix and the uniformity of dispersion thereof.
Therefore, how to provide a glass fiber which is uniformly dispersed and has strong adhesion with a polypropylene resin matrix is an urgent problem to be solved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a modified glass fiber reinforced polypropylene composition.
The aim of the invention is realized by the following technical scheme:
the modified glass fiber reinforced polypropylene composition is prepared from the following components in parts by weight:
the modified medium-alkali glass fiber is prepared by the following preparation method: and adding the medium-alkali glass fiber into oxidized polyethylene wax emulsion for dipping treatment, and then taking out and drying to obtain the modified medium-alkali glass fiber.
As a preferable technical scheme, the time of the dipping treatment is 30-60min; the drying temperature is 50-60deg.C, and the drying time is 40-60min. The drying temperature is not more than 60 ℃, the drying time is not more than 60 minutes, otherwise, the surface of the glass fiber is easy to generate bonding problem.
As a preferable technical scheme, the polypropylene is copolymerized polypropylene.
As a preferable technical scheme, the medium-alkali glass fiber is a short-cut medium-alkali glass fiber, the average length of the medium-alkali glass fiber is 5-12mm, and the diameter of a monofilament is 10-15 mu m.
The second object of the present invention is to provide a method for preparing the modified glass fiber reinforced polypropylene composition, comprising the following steps:
(1) 100 parts of polypropylene, 0.3-0.5 part of antioxidant 1010 and 0.3-0.5 part of antioxidant 168 are uniformly mixed at room temperature to obtain a mixture;
(2) Adding the mixture prepared in the step (1) from a main feeding port of a double-screw extruder, adding 10-50 parts of modified medium-alkali glass fiber from a side feeding port of the double-screw extruder, extruding and granulating to obtain a final product. Further preferably, the extrusion temperature of the twin-screw extruder is 180 to 230 ℃.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the medium-alkali glass fiber is modified by oxidized polyethylene wax, on one hand, carboxyl groups on the surface of the oxidized polyethylene wax can be better combined with hydroxyl groups on the surface of the medium-alkali glass fiber, and the interface binding force of the oxidized polyethylene wax and the medium-alkali glass fiber is enhanced; on the other hand, the polyethylene wax can better coat the medium-alkali glass fiber monofilaments, and can uniformly disperse the medium-alkali glass fiber monofilaments in polypropylene, so that the tensile strength, bending strength and impact strength of the polypropylene composition can be greatly enhanced.
Detailed Description
The invention will be further illustrated with reference to examples. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The types and suppliers of the reagents used in this example are as follows:
the polypropylene is Shanghai Siraceae PPK7926, and the melt index is 26g/10min;
the manufacturer of the short-cut medium-alkali glass fiber is Mount Taishan glass fiber company, the average length of the glass fiber is 8mm, and the diameter of a monofilament is 11 mu m.
The oxidized polyethylene wax emulsion manufacturer is Nantong Orno chemical industry Co., ltd, with a mark of HA-soft80 and a solid content of 40%.
Antioxidant 1010, antioxidant 168 manufacturer is cyanogen chemistry.
KH550, KH570, titanate coupling agent NXH-101 and aluminate coupling agent NXH-821 are manufactured by Nanjing Xuanhao new material technology Co.
The above reagents are merely illustrative of the sources and ingredients of the reagents used in the experiments of the invention and are well disclosed and do not represent the inability to practice the invention using other reagents of the same type or provided by other suppliers.
The modified medium-alkali glass fiber used in the following examples 1-5 is prepared by the following process:
at room temperature, the medium-alkali glass fiber is put into 10 times of oxidized polyethylene wax emulsion for soaking for 45 minutes, taken out, dried for 45 minutes at 55 ℃ and preserved for standby.
Example 1
(1) 100 parts of polypropylene, 0.3 part of antioxidant 1010 and 0.5 part of antioxidant 168 are added into a high-speed mixer to be uniformly mixed at normal temperature;
(2) And (3) placing the mixture prepared in the step (1) into a feeding port of a double-screw extruder, adding 10 parts of modified medium-alkali glass fiber into the extruder from a side feeding port, and extruding and granulating by the double-screw extruder to obtain the special glass fiber reinforced polypropylene composition. The temperature of each heating zone is 180 ℃,200 ℃,200 ℃,210 ℃,220 ℃,225 ℃ and 230 ℃ of the die head.
Example 2
(1) 100 parts of polypropylene, 0.5 part of antioxidant 1010 and 0.5 part of antioxidant 168 are added into a high-speed mixer to be uniformly mixed at normal temperature;
(2) And (3) placing the mixture prepared in the step (1) into a feeding port of a double-screw extruder, adding 20 parts of modified medium-alkali glass fiber into the extruder from a side feeding port, and extruding and granulating by the double-screw extruder to obtain the special glass fiber reinforced polypropylene composition. The temperature of each heating zone is 180 ℃,190 ℃,200 ℃,210 ℃,220 ℃,225 ℃ and 230 ℃ of the die head.
Example 3
(1) 100 parts of polypropylene, 0.4 part of antioxidant 1010 and 0.4 part of antioxidant 168 are added into a high-speed mixer to be uniformly mixed at normal temperature;
(2) And (3) placing the mixture prepared in the step (1) into a feeding port of a double-screw extruder, adding 30 parts of modified medium-alkali glass fiber into the extruder from a side feeding port, and extruding and granulating by the double-screw extruder to obtain the special glass fiber reinforced polypropylene composition. The temperature of each heating zone is 180 ℃,190 ℃,200 ℃,210 ℃,220 ℃,225 ℃ and 230 ℃ of the die head.
Example 4
(1) 100 parts of polypropylene, 0.5 part of antioxidant 1010 and 0.4 part of antioxidant 168 are added into a high-speed mixer to be uniformly mixed at normal temperature;
(2) And (3) placing the mixture prepared in the step (1) into a feeding port of a double-screw extruder, adding 50 parts of modified medium-alkali glass fiber into the extruder from a side feeding port, and extruding and granulating by the double-screw extruder to obtain the special glass fiber reinforced polypropylene composition. The temperature of each heating zone is 180 ℃,200 ℃,210 ℃,220 ℃,220 ℃,225 ℃ and 230 ℃ of the die head.
Example 5
(1) 100 parts of polypropylene, 0.4 part of antioxidant 1010 and 0.4 part of antioxidant 168 are added into a high-speed mixer to be uniformly mixed at normal temperature;
(2) And (3) placing the mixture prepared in the step (1) into a feeding port of a double-screw extruder, adding 40 parts of modified medium-alkali glass fiber into the extruder from a side feeding port, and extruding and granulating by the double-screw extruder to obtain the special glass fiber reinforced polypropylene composition. The temperature of each heating zone is 180 ℃,200 ℃,210 ℃,220 ℃,230 ℃,230 ℃ and 230 ℃ of the die head.
Comparative example 1
(1) 100 parts of polypropylene, 0.4 part of antioxidant 1010 and 0.4 part of antioxidant 168 are added into a high-speed mixer to be uniformly mixed at normal temperature;
(2) And (3) placing the mixture prepared in the step (1) into a feeding port of a double-screw extruder, adding 40 parts of modified alkali-free glass fiber (Taishan 988A) into the extruder from a side feeding port, and extruding and granulating by the double-screw extruder to obtain the special glass fiber reinforced polypropylene composition. The temperature of each heating zone is 180 ℃,200 ℃,210 ℃,220 ℃,230 ℃,230 ℃ and 230 ℃ of the die head.
The modified alkali-free glass fiber of the comparative example is prepared by the following process:
the alkali-free glass fiber is put into 10 times of coupling agent KH550 water solution (mass fraction 2%) by weight for soaking for 45 minutes, taken out, dried for 45 minutes at 55 ℃ and stored.
Comparative example 2
(1) 100 parts of polypropylene, 0.4 part of antioxidant 1010 and 0.4 part of antioxidant 168 are added into a high-speed mixer to be uniformly mixed at normal temperature;
(2) And (3) placing the mixture prepared in the step (1) into a feeding port of a double-screw extruder, adding 40 parts of untreated medium-alkali glass fibers into the extruder from a side feeding port, and extruding and granulating by the double-screw extruder to obtain the special glass fiber reinforced polypropylene composition. The temperature of each heating zone is 180 ℃,200 ℃,210 ℃,220 ℃,230 ℃,230 ℃ and 230 ℃ of the die head.
Comparative example 3
(1) 100 parts of polypropylene, 0.4 part of antioxidant 1010 and 0.4 part of antioxidant 168 are added into a high-speed mixer to be uniformly mixed at normal temperature;
(2) And (3) placing the mixture prepared in the step (1) into a feeding port of a double-screw extruder, adding 40 parts of modified medium-alkali glass fiber into the extruder from a side feeding port, and extruding and granulating by the double-screw extruder to obtain the special glass fiber reinforced polypropylene composition. The temperature of each heating zone is 180 ℃,200 ℃,210 ℃,220 ℃,230 ℃,230 ℃ and 230 ℃ of the die head.
The modified medium-alkali glass fiber of the comparative example is prepared by the following process:
putting the medium-alkali glass fiber into 10 times of coupling agent KH550 water solution (mass fraction 2%) by weight, soaking for 45 minutes, taking out, drying at 55 ℃ for 45 minutes, and preserving.
Comparative example 4
(1) 100 parts of polypropylene, 0.4 part of antioxidant 1010 and 0.4 part of antioxidant 168 are added into a high-speed mixer to be uniformly mixed at normal temperature;
(2) And (3) placing the mixture prepared in the step (1) into a feeding port of a double-screw extruder, adding 40 parts of modified medium-alkali glass fiber into the extruder from a side feeding port, and extruding and granulating by the double-screw extruder to obtain the special glass fiber reinforced polypropylene composition. The temperature of each heating zone is 180 ℃,200 ℃,210 ℃,220 ℃,230 ℃,230 ℃ and 230 ℃ of the die head.
The modified medium-alkali glass fiber of the comparative example is prepared by the following process:
putting the medium-alkali glass fiber into 10 times of aluminate coupling agent NXH-821 aqueous solution (mass fraction 2%) for soaking for 45 minutes, taking out, drying for 45 minutes at 55 ℃, and preserving.
Comparative example 5
(1) 100 parts of polypropylene, 0.4 part of antioxidant 1010 and 0.4 part of antioxidant 168 are added into a high-speed mixer to be uniformly mixed at normal temperature;
(2) And (3) placing the mixture prepared in the step (1) into a feeding port of a double-screw extruder, adding 40 parts of modified medium-alkali glass fiber into the extruder from a side feeding port, and extruding and granulating by the double-screw extruder to obtain the special glass fiber reinforced polypropylene composition. The temperature of each heating zone is 180 ℃,200 ℃,210 ℃,220 ℃,230 ℃,230 ℃ and 230 ℃ of the die head.
The modified medium-alkali glass fiber of the comparative example is prepared by the following process:
putting the medium-alkali glass fiber into 10 times of titanate coupling agent NXH-101 water solution (mass fraction 2%) for soaking for 45 minutes, taking out, drying at 55 ℃ for 45 minutes, and preserving.
Comparative example 6
(1) 100 parts of polypropylene, 5 parts of oxidized polyethylene wax, 0.4 part of antioxidant 1010 and 1680.4 parts of antioxidant are added into a high-speed mixer to be uniformly mixed at normal temperature;
(2) And (3) placing the mixture prepared in the step (1) into a feeding port of a double-screw extruder, adding 40 parts of medium-alkali glass fiber into the extruder from a side feeding port, and extruding and granulating by the double-screw extruder to obtain the special glass fiber reinforced polypropylene composition. The temperature of each heating zone is 180 ℃,200 ℃,210 ℃,220 ℃,230 ℃,230 ℃ and 230 ℃ of the die head.
The mechanical property testing method comprises the following steps:
the products produced in the above examples and comparative examples were injection molded using ASTM standards. The spline dimensions (length x width x thickness) are: the sample strip for testing tensile strength and bending strength is dumbbell-shaped, and is 170mm multiplied by 13mm multiplied by 3.2mm; the cantilever beam notch impact strength test sample strip is 127mm multiplied by 13mm multiplied by 3.2mm, and the V-shaped notch has a notch depth of 1/5; tensile strength was measured according to ASTM D638, at a tensile speed of 5mm/min; flexural strength was measured according to ASTM D790 at a flexural speed of 1.25mm/min; the notched Izod impact performance was tested according to ASTM D256; the results are shown in Table 1 below.
Table 1 results of performance tests of the products prepared in examples and comparative examples
As can be seen from Table 1, the products prepared in examples 4 to 5 were excellent in performance, mainly because of the content of the modified glass fiber and the good dispersibility of the modified glass fiber in the system. According to the invention, after the alkali glass fiber is soaked by the polyethylene wax emulsion, on one hand, carboxyl groups on the surface of the polyethylene wax can be better combined with hydroxyl groups on the surface of the medium alkali glass fiber, so that the interface binding force of the polyethylene wax and the hydroxyl groups on the surface of the medium alkali glass fiber is enhanced; on the other hand, the polyethylene wax can better coat the medium-alkali glass fiber monofilaments, and can uniformly disperse the medium-alkali glass fiber monofilaments in polypropylene, so that the tensile strength, bending strength and impact strength of the polypropylene composition can be greatly enhanced.
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments and that the general principles described herein may be applied to other embodiments without the need for inventive faculty. Therefore, the present invention is not limited to the embodiments described herein, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.
Claims (4)
1. A modified glass fiber reinforced polypropylene composition is characterized in that: the composition is prepared from the following components in parts by weight:
100 parts of polypropylene, and the weight of the polypropylene,
10-50 parts of modified medium-alkali glass fiber,
10100.3 to 0.5 part of antioxidant,
1680.3-0.5 part of antioxidant;
the modified medium-alkali glass fiber is prepared by the following preparation method: adding the medium-alkali glass fiber into oxidized polyethylene wax emulsion for dipping treatment, and then taking out and drying to obtain modified medium-alkali glass fiber;
the time of the soaking treatment is 30-60min;
the drying temperature is 50-60 ℃, and the drying time is 40-60min;
the medium-alkali glass fiber is a short-cut medium-alkali glass fiber, the average length of the medium-alkali glass fiber is 5-12mm, and the diameter of a monofilament is 10-15 mu m.
2. The modified glass fiber reinforced polypropylene composition according to claim 1, wherein: the polypropylene is a copolymer polypropylene.
3. The method for preparing the modified glass fiber reinforced polypropylene composition according to claim 1 or 2, wherein: the method comprises the following steps:
(1) 100 parts of polypropylene, 10100.3-0.5 part of antioxidant and 1680.3-0.5 part of antioxidant are uniformly mixed at room temperature to obtain a mixture;
(2) Adding the mixture prepared in the step (1) from a main feeding port of a double-screw extruder, adding 10-50 parts of modified medium-alkali glass fiber from a side feeding port of the double-screw extruder, extruding and granulating to obtain a final product.
4. A method of preparation according to claim 3, characterized in that: the extrusion temperature of the double-screw extruder is 180-230 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011163206.8A CN114507400B (en) | 2020-10-27 | 2020-10-27 | Modified glass fiber reinforced polypropylene composition and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011163206.8A CN114507400B (en) | 2020-10-27 | 2020-10-27 | Modified glass fiber reinforced polypropylene composition and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114507400A CN114507400A (en) | 2022-05-17 |
| CN114507400B true CN114507400B (en) | 2023-12-08 |
Family
ID=81546959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011163206.8A Active CN114507400B (en) | 2020-10-27 | 2020-10-27 | Modified glass fiber reinforced polypropylene composition and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114507400B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1498450A (en) * | 1974-09-13 | 1978-01-18 | Ugine Kuhlmann | Extrusion composition based on glass fibre reinforced vinyl resin |
| CN101338051A (en) * | 2008-08-08 | 2009-01-07 | 苏州工业园区和昌电器有限公司 | Long glass fiber reinforced polypropylene material and preparation thereof |
| CN102181096A (en) * | 2011-04-22 | 2011-09-14 | 松下家电研究开发（杭州）有限公司 | Glass fiber reinforced polypropylene material and preparation method thereof |
| CN102731905A (en) * | 2012-05-22 | 2012-10-17 | 宁波泛龙塑料新材料有限公司 | Long glass fiber reinforced modified polypropylene and preparation method thereof |
| CN109401068A (en) * | 2018-09-30 | 2019-03-01 | 金旸（厦门）新材料科技有限公司 | A kind of modified polypropene compound and preparation method thereof of low warpage high impact |
| CN109455953A (en) * | 2018-12-03 | 2019-03-12 | 巨石集团有限公司 | A kind of reinforced polypropylene glass fiber infiltration agent and its preparation method and application |
-
2020
- 2020-10-27 CN CN202011163206.8A patent/CN114507400B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1498450A (en) * | 1974-09-13 | 1978-01-18 | Ugine Kuhlmann | Extrusion composition based on glass fibre reinforced vinyl resin |
| CN101338051A (en) * | 2008-08-08 | 2009-01-07 | 苏州工业园区和昌电器有限公司 | Long glass fiber reinforced polypropylene material and preparation thereof |
| CN102181096A (en) * | 2011-04-22 | 2011-09-14 | 松下家电研究开发（杭州）有限公司 | Glass fiber reinforced polypropylene material and preparation method thereof |
| CN102731905A (en) * | 2012-05-22 | 2012-10-17 | 宁波泛龙塑料新材料有限公司 | Long glass fiber reinforced modified polypropylene and preparation method thereof |
| CN109401068A (en) * | 2018-09-30 | 2019-03-01 | 金旸（厦门）新材料科技有限公司 | A kind of modified polypropene compound and preparation method thereof of low warpage high impact |
| CN109455953A (en) * | 2018-12-03 | 2019-03-12 | 巨石集团有限公司 | A kind of reinforced polypropylene glass fiber infiltration agent and its preparation method and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114507400A (en) | 2022-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104592722B (en) | The low warp glass fiber of high glaze strengthens PBT/PP Alloy And Preparation Method | |
| EP2096134B1 (en) | Organic fiber-reinforced composite resin composition and organic fiber-reinforced composite resin molding | |
| CN102181096B (en) | Glass fiber reinforced polypropylene material and preparation method thereof | |
| CN108264749A (en) | A kind of high good surface carbon fiber reinforced polycarbonate composite material of flowing and preparation method thereof | |
| CN110862618A (en) | Ultra-low-warpage high-strength long glass fiber reinforced polypropylene composite material and preparation method thereof | |
| CN113429781A (en) | Long glass fiber reinforced bio-based polyamide 56, alloy and preparation method thereof | |
| CN110144117A (en) | A kind of polyamide compoiste material and preparation method thereof | |
| CN113717462A (en) | Low-shrinkage high-toughness polypropylene composite material and preparation method thereof | |
| CN112795190B (en) | High-toughness glass fiber reinforced polyphenylene sulfide composite material and preparation method thereof | |
| CN114507400B (en) | Modified glass fiber reinforced polypropylene composition and preparation method thereof | |
| CN115678278B (en) | PPS composite material and preparation method and application thereof | |
| CN111484673A (en) | Modified polypropylene plastic | |
| CN103450491A (en) | Long-glass-fiber reinforced nylon 6 composite material and preparation method thereof | |
| CN114539735B (en) | PBT/POK composite material and application thereof | |
| CN115850965A (en) | High-stability PA-PE composite material special for food and preparation method thereof | |
| CN107540935B (en) | Polypropylene reclaimed material composition and preparation method thereof | |
| CN113717471B (en) | High-surface tension polypropylene composite material and preparation method thereof | |
| CN115028983A (en) | Low-cost POK/PP alloy with good chemical resistance and preparation method and application thereof | |
| CN111154183B (en) | Reinforced polypropylene material and preparation method thereof | |
| CN1229814A (en) | Injection moulding glass fiber reinforced polypropylene compsns. | |
| CN113831635B (en) | Weather-resistant glass fiber reinforced polypropylene composition and preparation method thereof | |
| CN111334037A (en) | PA1010 composite material and preparation method thereof | |
| CN112745663A (en) | High-strength nylon 6 material and preparation method thereof | |
| CN114479389B (en) | Nanofiber modified PBT composite material and preparation method and application thereof | |
| CN115536971B (en) | Heat aging-resistant ASA/PBT composition and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |