CN102532607A - Reinforced inorganic filling material, composite material of reinforced inorganic filling material and preparation method - Google Patents

Reinforced inorganic filling material, composite material of reinforced inorganic filling material and preparation method Download PDF

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CN102532607A
CN102532607A CN2011104527104A CN201110452710A CN102532607A CN 102532607 A CN102532607 A CN 102532607A CN 2011104527104 A CN2011104527104 A CN 2011104527104A CN 201110452710 A CN201110452710 A CN 201110452710A CN 102532607 A CN102532607 A CN 102532607A
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reinforced inorganic
inorganic filler
reinforced
filling material
matrix material
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翁永华
汪理文
丁贤麟
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RUNJIA ENGINEERING PLASTIC Co Ltd SUZHOU INDUSTRY ZONE
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RUNJIA ENGINEERING PLASTIC Co Ltd SUZHOU INDUSTRY ZONE
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    • B29C47/92

Abstract

The invention belongs to the field of nano materials, and in particular relates to a reinforced inorganic filling material and a synthesis method of the reinforced inorganic filling material as well as a composite material of a reinforced inorganic filling material and a preparation method of the composite material of the reinforced inorganic filling material. The reinforced inorganic filling material is characterized by consisting of a mineral powder filling material layer and a nano rigid particle layer cladded on the surface of the mineral powder filling material layer, wherein the nano rigid particle is nano SiO2. The composite material of the reinforced inorganic filling material is characterized by being prepared from the following raw materials in percentage by weight: 69-94% of polypropylene, 5-30% of reinforced filling material, 0.1-1.0% of thermal oxygen stabilizer and 0.1-1.0% of antioxidant, wherein the reinforced filling material is a reinforced inorganic filling material formed by cladding the nano rigid particles on the surface of the mineral powder reinforced filling material. According to the invention, the reinforced inorganic filling material is added in a plastic material so that sufficient dispersion can be achieved; the prepared composite material has improved the toughness of the material while ensuring that the strength of the material is improved; and the other characteristics of the composite material are not influenced by the reinforced inorganic filling material. The preparation method is simple in preparation process and low in cost, and is suitable for industrial production.

Description

Reinforced inorganic filler, reinforced inorganic filler composite materials and preparation method
Technical field
The invention belongs to field of nanometer material technology, relate in particular to matrix material of a kind of reinforced inorganic filler and compound method thereof, reinforced inorganic filler and preparation method thereof.
Background technology
Vestolen PP 7052 (PP) is one type of general-purpose plastics that is of wide application, and its tensile strength, ys, surface hardness and Young's modulus are all more excellent, and outstanding environmental stress crack resistance and wear resistance are arranged.But Vestolen PP 7052 exists that molding shrinkage is high, notched Izod impact strength is low, poor toughness, the shortcomings such as aging that are prone to, and application receives very big restriction with engineering plastics as structured material.In recent years, the enhancing toughening modifying of the PP important means that become through engineering approaches, functionalization, become more meticulous.Past adopts the elastomer blended and fiber of rubber-like, filler filling blend mode to carry out the enhancing toughening modifying of PP; Though adopt fiber reinforcement that the strength of materials is greatly increased; But material warp, fiber are exposed, and the toughness of material can not better controlled in addition; And, can improve its dimensional stability, thermotolerance, rigidity, and can reduce cost but can't solve plastics and strengthen simultaneously and toughness reinforcing contradiction with inorganic substance filled polypropylenes such as lime carbonate, polynite, talcum powder.
In recent years; Basic theory and applied research that the nano grade inorganic mineral filler is filled various plastic polymers have been begun both at home and abroad; Because nanometer grade powder filling surface ability height, easy reunion, difficult dispersion, nano material price height, present stage also is difficult in various plastic polymers, obtain large-scale application.The people such as Huang Jiamu of University Of Chongqing and Tsing-Hua University disclose nano silicon SiO 2Coat the wollastonite powder filled modified polypropylene, filling-modified PP can reach enhancing, toughness reinforcing, nanometer SiO simultaneously 2The increase by 18% that the tensile strength of the PP that the coating filler is filled is filled than common fillers; And shock strength can increase (Chemical Building Marerials more than 50%; 2004); But prepare more loaded down with trivial detailsly, and need in solution, to carry out complicated chemical reaction, be not suitable for amplifying industrial production; People such as Yang Yufen disclose at homodisperse CaO-H on China Mining University's journal 2O-CO 2In the system, according to the heterogeneous nucleation principle, realized that the nanometer on mineral grain surface coats, needed operations such as stirring, ventilation, filtration, oven dry, dispersion, process is loaded down with trivial details, also is not suitable for industrial production.Therefore, be necessary to design and prepare on the basis of traditional mineral filler more to have and utilize the novel mineral filler that is worth, this novel material also should carry out nanometer to coat, and should be fit to industrial production.
Summary of the invention
The object of the present invention is to provide a kind of with low cost, be suitable for suitability for industrialized production and good dispersivity, strengthen the excellent reinforced inorganic filler of toughening effect, more specifically be the reinforced inorganic filler of processing by nano level rigid particles and mineral filler.Another object of the present invention is to provide the preparation method of this reinforced inorganic filler.
The present invention coats one deck nano level rigid particles on common mineral powder filling materials surface, makes powder not only have good rigidity and dispersiveness, and cost low, be convenient to industrial production, wherein the nano level rigid particles refers to nano level SiO 2Deng, concrete mode is with nano level SiO 2With the mineral powder filling materials proportional mixing,, make the bed of material pass through the narrow gap between rotor and the circular stator through barrel-shaped bearing material rotor high-speed rotation; Make the bed of material bear huge impact, compression, shearing force and produce localized hyperthermia, form local plasma, two kinds of materials are merged; With sub-particles coalesce on macrobead; Particle deforms simultaneously, particle is developed to spherical direction, thereby formed the reinforced inorganic filler.This reinforced inorganic filler added to process the reinforced inorganic filler composite materials in the plastic material; It can access sufficient dispersion; Make to form contact and interaction between filler, make the intensity of material and toughness that raising in various degree all arranged, thereby made the reinforced composite of excellent performance; Other characteristics of this reinforced composite simultaneously can not exert an influence like thermo-oxidative stability etc.
To achieve these goals, the technical scheme that the present invention adopted is: the reinforced inorganic filler is characterized in that: by mineral powder filling materials layer and the nano level rigid particles layer that is coated on the mineral powder filling materials laminar surface.
Aforesaid reinforced inorganic filler, described nano level rigid particles is nano level SiO 2
Aforesaid reinforced inorganic filler, the particle diameter ratio of described mineral powder filling materials and nano level rigid particles is 10:1-50:1.
Aforesaid reinforced inorganic filler, described mineral powder filling materials are common breeze, and Mohs' hardness is 1-3, are talcum powder, lime carbonate, kaolin or Peng Run soil.
Prepare the method for aforesaid reinforced inorganic filler, it is characterized in that: the barrel-shaped bearing material rotor high-speed rotational shear through dispersion machine prepares the reinforced inorganic filler.
The preparation method of aforesaid reinforced inorganic filler comprises the steps that (1) is with nano level rigid particles and mineral powder filling materials 1:4 (referring to part by weight) mixing in proportion; (2) (1) gained mixture is put into dispersion machine, make the bed of material bear huge impact, compression, shearing force and produce localized hyperthermia, two kinds of materials are fused into particle, and particle becomes sphere, thereby form the reinforced inorganic filler.
The present invention uses the ultra cutting method of simple machinery, produces impact, shearing force and localized hyperthermia through barrel-shaped bearing material rotor high-speed rotation, mineral powder filling materials and nano level rigid particles is merged and the formation circular granular, promptly makes the reinforced inorganic filler.Compare with existing ultrasonic, filtration, chemical gaseous phase depositing process, technology is simple, be fit to industrial production, with low cost and can obtain the reinforced inorganic filler of intensity height, good toughness, good dispersivity.
Another purpose of the present invention is to provide the matrix material of the excellent reinforced inorganic filler of a kind of comprehensive mechanical property, intensity height, good toughness, thermal-oxidative aging property, and this matrix material is the basis, is that matrix is processed through melt extruding with the thermoplastics with the reinforced inorganic filler.
To achieve these goals, the technical scheme that the present invention adopted is: the matrix material of reinforced inorganic filler is characterized in that: be mixed with by following materials of weight proportions:
Vestolen PP 7052 69-94%;
Enhancement type filler 5-30%;
Thermal oxidation stabilizer 0.1-1.0%;
Oxidation inhibitor 0.1-1.0%;
Described enhancement type filler is aforesaidly to be coated on the reinforced inorganic filler that mineral powder filling materials surface forms by the nano level rigid particles; The nano level rigid particles that wherein coats is nano level SiO 2, the powder that is coated is common breeze, Mohs' hardness is 1-3, like talcum powder, lime carbonate, kaolin, wilkinite etc.
The matrix material of aforesaid reinforced inorganic filler, said Vestolen PP 7052 are the different mobile homopolymerizations or the Vestolen PP 7052 of copolymerization.
The matrix material of aforesaid reinforced inorganic filler, for the Vestolen PP 7052 of copolymerization, comonomer is an ethene, ethylene content is in the scope of 4-10mol%; Under the temperature and pressure of 230 ℃ * 2.16kg, polyacrylic melt flow rate(MFR) is 5-50g/10min, and more commonly used is polyacrylic melt flow rate(MFR) 5-30g/10min.
The matrix material of aforesaid reinforced inorganic filler, the tensile strength of described matrix material are 24.8-31 kJ/m 2, the flexural strength of matrix material is 27.5-35 MPa, the notched Izod impact strength of matrix material is followed successively by 4.5-14 kJ/m 2
Prepare the method for the matrix material of aforesaid reinforced inorganic filler, it is characterized in that: may further comprise the steps
(1) weighs raw material by weight ratio;
(2) raw material was done in super mixer mixed 3-5 minute;
(3) mixed raw material is placed dual-screw-stem machine,, make the matrix material that the enhancement type filler is filled through melt extruding granulation; Raw material is through a plurality of warm areas of dual-screw-stem machine, and extrusion temperature is 215~225 ℃, and the dual-screw-stem machine internal pressure is 12-18MPa, and raw material is 1-2 minute in the dual-screw-stem machine residence time.
The method of the matrix material of aforesaid preparation reinforced inorganic filler, dual-screw-stem machine is divided into a plurality of warm areas in step (3), is followed successively by 180~190 ℃ in a district; 200~210 ℃ in two districts, 200~210 ℃ in three districts, 210~215 ℃ in four districts; 210~215 ℃ in five districts, 210~215 ℃ in six districts, 215~225 ℃ in seven districts; 215~225 ℃ in eight districts, 215~225 ℃ in nine districts, 215~225 ℃ in ten districts.
The reinforced inorganic filler is added in the plastic material, can access sufficient dispersion, the matrix material of processing when guaranteeing that the strength of materials improves, material toughness also be improved.Other characteristics of this matrix material do not receive the influence of reinforced inorganic filler like mechanical property, thermo-oxidative stability, and preparation technology is simple, cost is low, be suitable for industrial production.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is done further explain.
One reinforced inorganic filler prepares process
Nanometer SiO 2Be to buy from Haitai Nano Material Co., Ltd., Nanjing.
With nanometer SiO 2With mineral powder filling materials 1:4 mixing by weight proportion, realize that through the rotational shear of high speed shear dispersion machine concrete processing parameter is: rotating speed 1500-3000 rev/min, temperature 80-150 ℃, pressure 3-8MPa, the residence time is 5-10 minute.
The preparation of the matrix material of two reinforced inorganic fillers
The matrix material of reinforced inorganic filler is mixed with by following materials of weight proportions: (%)
Vestolen PP 7052 69-94;
Enhancement type filler 5-30;
Thermo-stabilizer DSTP 0.1-1.0;
Antioxidant 1010 0.1-1.0;
Oxidation inhibitor 168 0.1-0.5.
The material requirements of using: Vestolen PP 7052 (PP) is the different mobile homopolymerizations and the Vestolen PP 7052 of copolymerization; Consumption is 69-94% (weight percentage); Wherein the comonomer of co-polypropylene is generally ethene; Its content in the scope of 4-10mol%, polyacrylic melt flow rate(MFR) (230 ℃ * 2.16kg) be 5-50g/10min, more commonly used is 5-30g/10min; The enhancement type filler is the reinforced inorganic filler of above-mentioned coating preparation, and the nano redigity particle that wherein coats is nanometer grade silica SiO 2, the powder that is coated is a talcum powder; Antioxidant 1010 produces for Ciba company, and trade names are Irganox 1010, and chemical name is four (β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester; Oxidation inhibitor 168 produces for Ciba company, and trade names are Irgafos 168, and chemical name is three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester; Thermal oxidation stabilizer DSTP is that Britain ICE company produces, and trade names are Negonox DSTP, and chemical name is the thio-2 acid octadecyl ester.
This preparing method's embodiment is divided into two groups, is concrete prescription and the process of first group of embodiment (embodiment 1-6) below.
Embodiment 1
Present embodiment discloses the preparation process of the matrix material of common mineral filler.
By weight getting Vestolen PP 7052 69%, talcum powder 30%, thermal oxidation stabilizer DSTP 0.5%, antioxidant 1010 0.3%, oxidation inhibitor 168 0.2%, in super mixer, do and mixed 3-5 minute, afterwards, again in twin screw extruder through melt extruding; Granulation makes the pellet of PP composite material, is divided into ten process island by temperature in the forcing machine, and its process control condition is: 180~190 ℃ in a district; 200~210 ℃ in two districts, 200~210 ℃ in three districts, 210~215 ℃ in four districts, 210~215 ℃ in five districts; 210~215 ℃ in six districts, 215~225 ℃ in seven districts, 215~225 ℃ in eight districts; 215~225 ℃ in nine districts, 215~225 ℃ in ten districts extrude through the pellet completion of back, ten districts; The residence time is 1-2 minute altogether in forcing machine, and the forcing machine internal pressure is 12-18MPa.
Embodiment 2
Present embodiment discloses the preparation process of the matrix material of common mineral filler.
In super mixer, do to mix 3-5 minute by weight getting Vestolen PP 7052 74%, talcum powder 25%, thermal oxidation stabilizer DSTP 0.7%, antioxidant 1010 0.1%, oxidation inhibitor 168 0.2%, afterwards, again in twin screw extruder through melt extruding; Granulation makes the pellet of PP composite material, and its process control condition is: 180~190 ℃ in a district; 200~210 ℃ in two districts, 200~210 ℃ in three districts, 210~215 ℃ in four districts; 210~215 ℃ in five districts, 210~215 ℃ in six districts, 215~225 ℃ in seven districts; 215~225 ℃ in eight districts, 215~225 ℃ in nine districts, 215~225 ℃ in ten districts; The residence time is 1-2 minute, and pressure is 12-18MPa.
Embodiment 3
Present embodiment discloses the preparation process of the matrix material of common mineral filler.
In super mixer, do to mix 3-5 minute by weight getting Vestolen PP 7052 79%, talcum powder 20%, thermo-stabilizer DSTP0.8%, antioxidant 1010 0.1%, oxidation inhibitor 168 0.1%, afterwards, again in twin screw extruder through melt extruding; Granulation makes the pellet of PP composite material, and its process control condition is: 180~190 ℃ in a district; 200~210 ℃ in two districts, 200~210 ℃ in three districts, 210~215 ℃ in four districts; 210~215 ℃ in five districts, 210~215 ℃ in six districts, 215~225 ℃ in seven districts; 215~225 ℃ in eight districts, 215~225 ℃ in nine districts, 215~225 ℃ in ten districts; The residence time is 1-2 minute, and pressure is 12-18MPa.
Embodiment 4
Present embodiment discloses the preparation process of the matrix material of common mineral filler.
In super mixer, do to mix 3-5 minute by weight getting Vestolen PP 7052 84%, talcum powder 15%, thermal oxidation stabilizer DSTP 0.5%, antioxidant 1010 0.3%, oxidation inhibitor 168 0.2%, afterwards, again in twin screw extruder through melt extruding; Granulation makes the pellet of PP composite material, and its process control condition is: 180~190 ℃ in a district; 200~210 ℃ in two districts, 200~210 ℃ in three districts, 210~215 ℃ in four districts; 210~215 ℃ in five districts, 210~215 ℃ in six districts, 215~225 ℃ in seven districts; 215~225 ℃ in eight districts, 215~225 ℃ in nine districts, 215~225 ℃ in ten districts; The residence time is 1-2 minute, and pressure is 12-18MPa.
Embodiment 5
Present embodiment discloses the preparation process of the plastic material of common mineral filler.
In super mixer, do to mix 3-5 minute by weight getting Vestolen PP 7052 94%, talcum powder 5%, thermal oxidation stabilizer DSTP 0.5%, antioxidant 1010 0.3%, oxidation inhibitor 168 0.2%, afterwards, again in twin screw extruder through melt extruding; Granulation makes the pellet of PP composite material, and its process control condition is: 180~190 ℃ in a district; 200~210 ℃ in two districts, 200~210 ℃ in three districts, 210~215 ℃ in four districts; 210~215 ℃ in five districts, 210~215 ℃ in six districts, 215~225 ℃ in seven districts; 215~225 ℃ in eight districts, 215~225 ℃ in nine districts, 215~225 ℃ in ten districts; The residence time is 1-2 minute, and pressure is 12-18MPa.
Embodiment 6
Present embodiment discloses the preparation process of common plastics material (not adding other filler).
In super mixer, do to mix 3-5 minute by weight getting Vestolen PP 7052 99%, thermal oxidation stabilizer DSTP 0.5%, antioxidant 1010 0.2%, oxidation inhibitor 168 0.3%, afterwards, again in twin screw extruder through melt extruding; Granulation makes the pellet of PP composite material, and its process control condition is: 180~190 ℃ in a district; 200~210 ℃ in two districts, 200~210 ℃ in three districts, 210~215 ℃ in four districts; 210~215 ℃ in five districts, 210~215 ℃ in six districts, 215~225 ℃ in seven districts; 215~225 ℃ in eight districts, 215~225 ℃ in nine districts, 215~225 ℃ in ten districts; The residence time is 1-2 minute, and pressure is 12-18MPa.
Second group of embodiment (embodiment 7-12) changes talcum powder into the enhancement type talcum powder, i.e. nano silicon SiO 2The talcum powder that coats, that is the reinforced inorganic filler of above-mentioned preparation, all the other prescription compositions and processing condition are the same with first group of embodiment.
Embodiment 7
Present embodiment discloses the preparation process of the matrix material of reinforced inorganic filler.
By weight getting Vestolen PP 7052 69%, enhancement type talcum powder 30%, thermal oxidation stabilizer DSTP 0.5%, antioxidant 1010 0.3%, oxidation inhibitor 168 0.2%, in super mixer, do and mixed 3-5 minute, afterwards, again in twin screw extruder through melt extruding; Granulation makes the pellet of PP composite material, and its process control condition is: 180~190 ℃ in a district; 200~210 ℃ in two districts, 200~210 ℃ in three districts, 210~215 ℃ in four districts; 210~215 ℃ in five districts, 210~215 ℃ in six districts, 215~225 ℃ in seven districts; 215~225 ℃ in eight districts, 215~225 ℃ in nine districts, 215~225 ℃ in ten districts; The residence time is 1-2 minute, and pressure is 12-18MPa.
Embodiment 8
Present embodiment discloses the preparation process of the matrix material of reinforced inorganic filler.
By weight getting Vestolen PP 7052 74%, enhancement type talcum powder 25%, thermal oxidation stabilizer DSTP 0.7%, antioxidant 1010 0.1%, oxidation inhibitor 168 0.2%, all the other are with embodiment 7.
Embodiment 9
Present embodiment discloses the preparation process of the matrix material of reinforced inorganic filler.
By weight getting Vestolen PP 7052 79%, enhancement type talcum powder 20%, thermal oxidation stabilizer DSTP 0.7%, antioxidant 1010 0.1%, oxidation inhibitor 168 0.1%, all the other are with embodiment 7.
Embodiment 10
Present embodiment discloses the preparation process of the matrix material of reinforced inorganic filler.
By weight getting Vestolen PP 7052 84%, enhancement type talcum powder 15%, thermal oxidation stabilizer DSTP 0.5%, antioxidant 1010 0.3%, oxidation inhibitor 168 0.2%, all the other are with embodiment 7.
Embodiment 11
Present embodiment discloses the preparation process of the matrix material of reinforced inorganic filler.
By weight getting Vestolen PP 7052 94%, enhancement type talcum powder 5%, thermal oxidation stabilizer DSTP 0.5%, antioxidant 1010 0.3%, oxidation inhibitor 168 0.2%, all the other are with embodiment 7.
Performance evaluation mode and implementation standard:
The particulate material that to accomplish granulation by above-mentioned two groups of embodiment in 90~100 ℃ convection oven dry 2~3 hours in advance, and then the particulate material that drying is good carries out the injection molding sample preparation on injection moulding machine.
The tensile property test is undertaken by ISO 527-2, and specimen size is 150*10*4mm, and draw speed is 50mm/min; The bending property test is undertaken by ISO 178, and specimen size is 80*10*4mm, and rate of bending is 2mm/min, and span is 64mm; Simple beam impact strength is undertaken by ISO 179, and specimen size is 80*6*4mm, and notch depth is 1/3rd of a sample thickness; Heat-drawn wire is undertaken by ISO 75, and specimen size is 120*10*3.0mm, and load is 1.8MPa; The thermal-oxidative aging property of material is undertaken by ISO4577, and specimen size is 50*10*10mm, and probe temperature is 150 ℃.
Comprehensive mechanical performance is passed judgment on through the numerical value of tensile strength, elongation at break, modulus in flexure, thermal denaturation temperature and the shock strength of test gained; The thermal-oxidative aging property of material is passed judgment on according to the heat oxygen aging resistance time length of measuring by standard: the time is long more, and the heatproof air aging performance of material is good more.
The prescription of two groups of embodiment and each item The performance test results are seen table 1 and table 2:
Table 1: the prescription of first group of embodiment and composite property table
The matrix material title Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5 Embodiment 6
Vestolen PP 7052 (%) 69 74 79 84 94 99
Talcum powder (%) 30 25 20 15 5 -
Oxidation inhibitor 168 (%) 0.2 0.2 0.1 0.2 0.2 0.3
Antioxidant 1010 (%) 0.3 0.1 0.1 0.3 0.3 0.2
Thermal oxidation stabilizer DSTP (%) 0.5 0.7 0.7 0.5 0.5 0.5
Unnotched impact strength (kJ/m 2) Constantly Constantly Constantly Constantly Constantly Constantly
Notched Izod impact strength (kJ/m 2) 3.5 4.0 6.0 7.0 9.0 12
Tensile strength (MPa) 26 25.4 25 24.6 24.5 24
Elongation at break (%) 35 40 40 50 70 80
Flexural strength (MPa) 30 29 28.5 28 27 26
Modulus in flexure (MPa) 1800 1600 1500 1350 1180 1100
Thermal-oxidative aging property (>;=500H) Qualified Qualified Qualified Qualified Qualified Qualified
Table 2: the prescription of second group of embodiment and composite property table
The matrix material title Embodiment 7 Embodiment 8 Embodiment 9 Embodiment 10 Embodiment 11
Vestolen PP 7052 (%) 69 74 79 84 94
Strengthen talcum powder (%) 30 25 20 15 5
Oxidation inhibitor 168 (%) 0.2 0.2 0.1 0.2 0.2
Antioxidant 1010 (%) 0.3 0.1 0.1 0.3 0.3
Thermal oxidation stabilizer DSTP (%) 0.5 0.7 0.7 0.5 0.5
Unnotched impact strength (kJ/m 2) Constantly Constantly Constantly Constantly Constantly
Notched Izod impact strength (kJ/m 2) 4.5 6.0 8.0 11 14
Tensile strength (MPa) 31 28 26.5 26 24.8
Elongation at break (%) 40 50 50 60 80
Flexural strength (MPa) 35 32 30 29 27.5
Modulus in flexure (MPa) 2000 1800 1700 1550 1350
Thermal-oxidative aging property (>;=500H) Qualified Qualified Qualified Qualified Qualified
Embodiment 1-5 is the plastics composite of common ore powder filler preparation in the table 1; Embodiment 6 is not for adding the plastic material of any filler preparation; Comparative example 6 and embodiment 1-5, the tensile strength of embodiment 1-5 is 26,25.4,25,24.6,24.5 (MPa), all is higher than the tensile strength 24 (MPa) of embodiment 6; The flexural strength of embodiment 1-5 is 30,29,28.5,28,27 (MPa); All be higher than the flexural strength 26 (MPa) of embodiment 6, the modulus in flexure of embodiment 1-5 also is higher than embodiment 6, and the notched Izod impact strength of embodiment 1-5 is 3.5,4.0,6.0,7.9,9.0 (kJ/m 2) all be lower than the notched Izod impact strength 12 (kJ/m of embodiment 6 2), and talcum powder content is high more, and notched Izod impact strength is more little; The elongation at break of embodiment 1-5 also is lower than embodiment 6, explains that common talcum powder can improve the intensity of material (comprising tensile strength and flexural strength), but influences the impact property of material; Talcum powder content high impact property more is poor more; When talcum powder was increased to a certain degree, impact property descended a lot, and therefore common talcum powder can improve the strength of materials; But the toughness of material descends, and is difficult to the intensity and the toughness of balance material.
Contrast table 1 and table 2; The embodiment 1-5 of table 1 and the embodiment 7-11 of table 2 are corresponding each other; Except the talcum powder in the table 1 changes the enhancing talcum powder (being the reinforced inorganic filler of aforementioned preparation) in the table 2 into; All the other component contents are all identical, and the notched Izod impact strength of embodiment 7-11 is followed successively by 4.5,6.0,8.0,11,14 (kJ/m 2), being higher than 3.5,4.0,6.0,7.9,9.0 (MPa) of embodiment 1-5 respectively, the tensile strength of embodiment 7-11 is followed successively by 31,28,26.5,26,24.8 (kJ/m 2),
26,25.4,25,24.6,24.5 (MPa) that are higher than embodiment 1-5 respectively; The flexural strength of embodiment 7-11 is followed successively by 35,32,30,29,27.5 (MPa); 30,29,28.5,28,27 (MPa) that are higher than embodiment 1-5 respectively; The matrix material that the reinforced inorganic filler is described has higher intensity and better toughness than the matrix material of common mineral filler; Improve about 20% than common talcous reinforced effects, shock strength improves 30-50%, plays to strengthen simultaneously and toughness reinforcing effect; Simultaneously also explanation from the side strengthens intensity and the toughness that talcum powder (being the reinforced inorganic filler) can improve material greatly, and the adding of reinforced inorganic filler does not influence fundamental propertys such as the mechanical property, thermo-oxidative stability of matrix material.
The foregoing description does not limit the present invention in any form, and all employings are equal to the technical scheme that mode obtained of replacement or equivalent transformation, all drop in protection scope of the present invention.

Claims (10)

1. the reinforced inorganic filler is characterized in that: by mineral powder filling materials layer and the nano level rigid particles layer that is coated on the mineral powder filling materials laminar surface.
2. reinforced inorganic filler according to claim 1 is characterized in that: described nano level rigid particles is nano level SiO 2
3. reinforced inorganic filler according to claim 1 is characterized in that: the particle diameter ratio of described mineral powder filling materials and nano level rigid particles is 10:1-50:1.
4. prepare the method for any described reinforced inorganic filler of claim 1-3, it is characterized in that: the barrel-shaped bearing material rotor high-speed rotational shear through dispersion machine prepares the reinforced inorganic filler.
5. the preparation method of reinforced inorganic filler according to claim 4 is characterized in that: comprise the steps that (1) is with nano level rigid particles and mineral powder filling materials 1:4 mixing in proportion; (2) (1) gained mixture is put into dispersion machine, make the bed of material bear huge impact, compression, shearing force and produce localized hyperthermia, two kinds of materials are fused into particle, and particle becomes sphere, thereby form the reinforced inorganic filler.
6. the matrix material of reinforced inorganic filler is characterized in that: be mixed with by following materials of weight proportions:
Vestolen PP 7052 69-94%;
Enhancement type filler 5-30%;
Thermal oxidation stabilizer 0.1-1.0%;
Oxidation inhibitor 0.1-1.0%;
Described enhancement type filler is that any one of claim 1-3 describedly is coated on the reinforced inorganic filler that mineral powder filling materials surface forms by the nano level rigid particles.
7. the matrix material of reinforced inorganic filler according to claim 6 is characterized in that: said Vestolen PP 7052 is the Vestolen PP 7052 of homopolymerization or copolymerization.
8. the matrix material of reinforced inorganic filler according to claim 7 is characterized in that: for the Vestolen PP 7052 of copolymerization, comonomer is an ethene, and ethylene content is in the scope of 4-10mol%; Under the temperature and pressure of 230 ℃ * 2.16kg, polyacrylic melt flow rate(MFR) is 5-50g/10min.
9. the matrix material of reinforced inorganic filler according to claim 6 is characterized in that: the tensile strength of described matrix material is 24.8-31 kJ/m 2, the flexural strength of matrix material is 27.5-35 MPa, the notched Izod impact strength of matrix material is followed successively by 4.5-14 kJ/m 2
10. the method for the matrix material of any described reinforced inorganic filler of preparation claim 6-9 is characterized in that: may further comprise the steps
(1) weighs raw material by weight ratio;
(2) raw material was done in super mixer mixed 3-5 minute;
(3) mixed raw material is placed dual-screw-stem machine,, make the matrix material that the enhancement type filler is filled through melt extruding granulation; Raw material is through a plurality of warm areas of dual-screw-stem machine, and extrusion temperature is 215~225 ℃, and the dual-screw-stem machine internal pressure is 12-18MPa, and raw material is 1-2 minute in the dual-screw-stem machine residence time.
CN2011104527104A 2011-12-30 2011-12-30 Reinforced inorganic filling material, composite material of reinforced inorganic filling material and preparation method Pending CN102532607A (en)

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CN103694558A (en) * 2013-12-06 2014-04-02 黑龙江大学 Phenolic aldehyde sphere/polypropylene composite material and preparation method thereof
CN110330723A (en) * 2019-07-22 2019-10-15 苏州润佳工程塑料股份有限公司 One kind is automobile-used to exempt from spraying composite material and preparation method thereof
CN112582281A (en) * 2019-09-29 2021-03-30 矽磐微电子(重庆)有限公司 Semiconductor packaging method and semiconductor packaging structure
CN112920509A (en) * 2021-02-01 2021-06-08 苏州禾昌聚合材料股份有限公司 Antibacterial polypropylene composite material and preparation method thereof
CN113136073A (en) * 2021-04-21 2021-07-20 上海新意达塑料托盘有限公司 Low-temperature-resistant impact-resistant polypropylene elastomer material and preparation method thereof

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103694558A (en) * 2013-12-06 2014-04-02 黑龙江大学 Phenolic aldehyde sphere/polypropylene composite material and preparation method thereof
CN103694558B (en) * 2013-12-06 2015-09-30 黑龙江大学 A kind of Phenolic aldehyde sphere/polypropylenecomposite composite material and preparation method thereof
CN110330723A (en) * 2019-07-22 2019-10-15 苏州润佳工程塑料股份有限公司 One kind is automobile-used to exempt from spraying composite material and preparation method thereof
CN112582281A (en) * 2019-09-29 2021-03-30 矽磐微电子(重庆)有限公司 Semiconductor packaging method and semiconductor packaging structure
CN112582281B (en) * 2019-09-29 2023-08-25 矽磐微电子(重庆)有限公司 Semiconductor packaging method and semiconductor packaging structure
CN112920509A (en) * 2021-02-01 2021-06-08 苏州禾昌聚合材料股份有限公司 Antibacterial polypropylene composite material and preparation method thereof
CN113136073A (en) * 2021-04-21 2021-07-20 上海新意达塑料托盘有限公司 Low-temperature-resistant impact-resistant polypropylene elastomer material and preparation method thereof

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