CN103788490A - Low-revealed high-gloss glass fiber reinforced polypropylene composite material and preparation method thereof - Google Patents

Low-revealed high-gloss glass fiber reinforced polypropylene composite material and preparation method thereof Download PDF

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CN103788490A
CN103788490A CN201410040967.2A CN201410040967A CN103788490A CN 103788490 A CN103788490 A CN 103788490A CN 201410040967 A CN201410040967 A CN 201410040967A CN 103788490 A CN103788490 A CN 103788490A
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composite material
glass fiber
fiber reinforced
polypropylene
reinforced polypropylene
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CN103788490B (en
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沈叶龙
娄小安
孟成铭
裘浩成
路海冰
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Shanghai Rizhisheng New Technology Development Co Ltd
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Shanghai Rizhisheng New Technology Development Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7461—Combinations of dissimilar mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/88—Adding charges, i.e. additives
    • B29B7/90—Fillers or reinforcements, e.g. fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • B29C48/25—Component parts, details or accessories; Auxiliary operations
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    • B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92514—Pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
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    • B29C2948/9258—Velocity
    • B29C2948/9259—Angular velocity
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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Abstract

The invention provides a low-revealed high-gloss glass fiber reinforced polypropylene composite material and a preparation method thereof. The composite material comprises the following components in parts by weight: 30-80 parts of polypropylene, 10-20 parts of polyethylene, 10-20 parts of calcium sulfate whiskers, 0-40 parts of glass fibers, 3-12 parts of an elastomer, 3-8 parts of a compatilizer, 0.2-1 part of an antioxidant and 0.2-2.0 parts of other aids, wherein the particle size of the calcium sulfate whiskers is 3-15 microns, and the elastomer is one or a mixture of two of a thermoplastic elastomer and a thermosetting elastomer. The invention further relates to the preparation method of the composite material. According to the composite material, the glass fibers are partially replaced with the calcium sulfate whiskers, so that the inherent strength of the composite material is kept, the usage amount of the glass fibers is reduced, revealed fibers are reduced, and the surface gloss of the material is improved.

Description

Low floating fine high gloss glass fiber reinforced polypropylene composite material and preparation method thereof
Technical field
The present invention relates to matrix material and preparation method thereof, particularly, relate to a kind of low floating fine high gloss glass fiber reinforced polypropylene composite material and preparation method thereof.
Background technology
Polypropylene PP is as one of five large general-purpose plastics, density is little, production cost is low, comprehensive mechanical property is good, nontoxic, corrosion-resistant, be easy to processing and the advantage such as recovery, be widely used in various places, as fields such as household electrical appliance, inner and outer decorative parts of automobile, body-building apparatus, office appliance, daily necessities, toy and sanitary ware, in plastics, occupy critical role, but in the time making family's electric parts, its intensity, rigidity, shock resistance and often do not reach requirement, product surface low in glossiness, floating fibre have seriously also limited polyacrylic application.Relatively more conventional is that glass, filling etc. are carried out modification to polypropylene at present, the object strengthening to reach polypropylene.
At present, about the polyacrylic development and application of low floating fibre be mainly by compatilizer physical blending in polypropylene PP resin and glass.Chinese patent literature CN103265761A, the low molecular polarity material of a kind of use maleic anhydride etc. is disclosed, initiator carries out to polypropylene surface the low floating fiber reinforced polypropylene material that modification makes, although but this material mechanical property is greatly improved, floating fine problem is still obvious.
Above technology is by processing glass or adding compatilizer to improve the consistency of the macromolecular materials such as polypropylene and glass; Its shortcoming is that the content of glass fiber adding can not be too much, otherwise that floating fibre exposes is still very serious, and processing characteristics is poor, causes product outward appearance bad.By adding calcium sulfate crystal whiskers part instead of glass fiber and elastomerics to improve the floating fine problem of product surface, the application in polypropylene at present not yet relates to.
Summary of the invention
For defect of the prior art, the object of this invention is to provide a kind of low floating fine high gloss glass fiber reinforced polypropylene composite material and preparation method thereof.
The present invention is achieved by the following technical solutions:
First aspect, the present invention relates to a kind of low floating fine high gloss glass fiber reinforced polypropylene composite material, and described matrix material comprises each component of following parts by weight:
Figure BDA0000463001470000011
Figure BDA0000463001470000021
When being injection-moulded in injection, the mobile of material is the flow pattern that is similar to liquid.Glass is far short of what is expected with respect to the mobility of plastics, and mobile in mould of plastics is from stream forward in the middle of interlayer, the mode that two limits are stirred outward flows, thus mobility best be to go to foremost certainly, and mobility bad will rest on die surface, form floating fine.Meanwhile, glass has the effect that promotes crystallization, and PP, PA belong to crystalline material.Crystallization is fast cooling just fast; Cooling fast, glass is just difficult to be fettered and cover by resin, so just easily produces glass emergence on the surface.Add elastomerics can destroy the crystallization velocity of material, in injection process, speed of cooling reduces, simultaneously adding of compatilizer, increased glass fibre and resin consistency, glass can be covered by resin, glass emergence on the surface is less.
The particle diameter of described calcium sulfate crystal whiskers is 3～15 μ m, and described elastomerics is one or both the mixing in thermoplastic elastomer, thermo-setting elastomer.Calcium sulfate crystal whiskers has high strength, high-modulus, high tenacity, high-insulativity, abrasion performance, high temperature resistant, acid and alkali-resistance, anticorrosive, infrared reflectivity good, be easy to surface treatment, easily and many good physicochemical properties such as polymkeric substance is compound, nontoxic than glass fibre.Calcium sulfate crystal whiskers part instead of glass fiber after surface treatment, has not only kept original physicals, and has improved the consistency between component, effectively improves the glossiness of material surface.
Preferably, described polypropylene is one or more the mixing in atactic polypropylene(APP), Isotactic polypropylene, syndiotactic polypropylenes, the quality melt flow rate (MFR) of described polypropylene under 230 ℃ of temperature, load 21.17N condition is 2.0～50.0g/10min, tensile strength >=20Mpa.
Preferably, described polyethylene is one or more the mixing in high density polyethylene(HDPE), Low Density Polyethylene, linear low density polyethylene, the quality melt flow rate (MFR) of described polyethylene under 230 ℃ of temperature, load 21.17N condition is 10.0～40.0g/10min, tensile strength >=15Mpa.
Preferably, described glass fibre is alkali-free glass fiber, and its Fibre diameter is 8～20 μ m.
Preferably, described elastomerics is one or more the mixing in polybutadiene rubber, styrene-butadiene rubber(SBR), nitrile rubber, ethylene propylene rubber, terpolymer EP rubber, Toughening Effect of Ethylene Copolymer Elastomer.
Preferably, described compatilizer is one or more the mixing in polypropylene grafted vinylformic acid, toxilic acid, maleic anhydride, glycidyl acrylate.
Preferably, described initiator is any in peroxidation tert-butyl acetate, dicumyl peroxide, di-t-butyl peroxide DTBP or peroxidized t-butyl perbenzoate TPB.
Preferably, described oxidation inhibitor is Hinered phenols antioxidant.
Preferably, described other auxiliary agents are thermo-stabilizer, lubricant, anti UV agent or pigment.
Second aspect, the invention still further relates to the preparation method of aforesaid low floating fine high gloss glass fiber reinforced polypropylene composite material, said method comprising the steps of:
Weigh each component by following parts by weight proportioning:
0.2～2.0 part of other auxiliary agent, by described polypropylene, polyethylene, elastomerics, compatilizer, oxidation inhibitor, other auxiliary agents are placed in high-speed mixer and mixing 5～10min, discharging, described glass fibre and described calcium sulfate crystal whiskers are added to forcing machine by side spout, extrude at dual-screw-stem machine, cooling, granulation, finally particle is dried, obtain low floating fine glass and strengthen high-gloss polypropylene matrix material, the rotating speed of described twin screw extruder is 200～500r/min, forcing machine is set to from the temperature setting that is fed to head: 165 ℃, 170 ℃, 175 ℃, 180 ℃, 190 ℃, 190 ℃, 190 ℃, 185 ℃, 180 ℃, vacuum tightness≤0.06MPa.
Compared with prior art, the present invention has following beneficial effect:
(1) the present invention utilizes the enhancement of glass fibre to macromolecular material, has obtained the polypropylene material of high strength, high rigidity, dimensional stabilizing, is suitable for all kinds of automobile-used, household electrical appliances engineering plastics parts of injection molding;
(2) the present invention has utilized the effect of the crystallization behavior of elastomerics to polypropene composition, be prepared into a kind of enhancing high-gloss polypropylene matrix material with high strength, high impact-resistant, low floating fibre, good stability of the dimension, can be widely used in the fields such as tubing, container, auto parts machinery, household electrical appliance;
(3) the present invention has utilized part polyethylene to substitute polypropylene, has improved the intrinsic glossiness of base material;
(4) the present invention, by calcium sulfate crystal whiskers part instead of glass fiber, had both kept the intrinsic intensity of matrix material, reduced the consumption of glass fibre simultaneously, had reduced floating dimension, had improved the surface gloss of material.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art further to understand the present invention, but not limit in any form the present invention.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement.These all belong to protection scope of the present invention.
embodiment 1～6
Embodiment 1～6 relates to and the invention still further relates to aforesaid low floating fine high gloss glass fiber reinforced polypropylene composite material and preparation method thereof; Described method comprises the steps:
Step 1, weighs each component by table 1 proportioning:
Table 1
Unit: kg
Figure BDA0000463001470000041
In table 1:
In embodiment 1: polypropylene is that the quality melt flow rate (MFR) of polypropylene under 230 ℃ of temperature, load 21.17N condition is 2.0～50.0g/10min described in atactic polypropylene(APP), tensile strength >=20Mpa;
Polyethylene is high density polyethylene(HDPE), and the quality melt flow rate (MFR) of described polyethylene under 230 ℃ of temperature, load 21.17N condition is 10.0～40.0g/10min, tensile strength >=15Mpa;
Glass fibre is alkali-free glass fiber, and its Fibre diameter is 8～20 μ m;
The particle diameter of calcium sulfate crystal whiskers is 3～15 μ m;
Elastomerics is polybutadiene rubber;
Compatilizer is polypropylene grafted vinylformic acid;
Initiator is peroxidation tert-butyl acetate;
Oxidation inhibitor is Hinered phenols antioxidant;
Other auxiliary agents are thermo-stabilizer.
In embodiment 2: polypropylene is Isotactic polypropylene, the quality melt flow rate (MFR) of described polypropylene under 230 ℃ of temperature, load 21.17N condition is 2.0～50.0g/10min, tensile strength >=20Mpa;
Polyethylene is Low Density Polyethylene, and the quality melt flow rate (MFR) of described polyethylene under 230 ℃ of temperature, load 21.17N condition is 10.0～40.0g/10min, tensile strength >=15Mpa;
Glass fibre is alkali-free glass fiber, and its Fibre diameter is 8～20 μ m;
The particle diameter of calcium sulfate crystal whiskers is 3～15 μ m;
Elastomerics is styrene-butadiene rubber(SBR);
Compatilizer is polypropylene grafted toxilic acid;
Initiator is dicumyl peroxide;
Oxidation inhibitor is Hinered phenols antioxidant;
Other auxiliary agents are lubricant;
In embodiment 3:
Polypropylene is the mixing of Isotactic polypropylene, syndiotactic polypropylenes, and the quality melt flow rate (MFR) of described polypropylene under 230 ℃ of temperature, load 21.17N condition is 2.0～50.0g/10min, tensile strength >=20Mpa;
Polyethylene is the mixing of high density polyethylene(HDPE), Low Density Polyethylene, and the quality melt flow rate (MFR) of described polyethylene under 230 ℃ of temperature, load 21.17N condition is 10.0～40.0g/10min, tensile strength >=15Mpa;
Glass fibre is alkali-free glass fiber, and its Fibre diameter is 8～20 μ m;
The particle diameter of calcium sulfate crystal whiskers is 3～15 μ m;
Elastomerics is the mixing of polybutadiene rubber, styrene-butadiene rubber(SBR);
Compatilizer is the mixing of polypropylene grafted vinylformic acid, toxilic acid;
Initiator is peroxidized t-butyl perbenzoate TPB;
Oxidation inhibitor is Hinered phenols antioxidant;
Other auxiliary agents are pigment;
In embodiment 4:
Polypropylene is syndiotactic polypropylenes, and the quality melt flow rate (MFR) of described polypropylene under 230 ℃ of temperature, load 21.17N condition is 2.0～50.0g/10min, tensile strength >=20Mpa;
Polyethylene is high density polyethylene(HDPE), and the quality melt flow rate (MFR) of described polyethylene under 230 ℃ of temperature, load 21.17N condition is 10.0～40.0g/10min, tensile strength >=15Mpa;
Glass fibre is alkali-free glass fiber, and its Fibre diameter is 8～20 μ m;
The particle diameter of calcium sulfate crystal whiskers is 3～15 μ m;
Elastomerics is polybutadiene rubber;
Compatilizer is polypropylene grafted vinylformic acid;
Initiator is peroxidation tert-butyl acetate;
Oxidation inhibitor is Hinered phenols antioxidant;
Other auxiliary agents are anti UV agent;
In embodiment 5:
Polypropylene is the mixing in atactic polypropylene(APP), Isotactic polypropylene, syndiotactic polypropylenes, and the quality melt flow rate (MFR) of described polypropylene under 230 ℃ of temperature, load 21.17N condition is 2.0～50.0g/10min, tensile strength >=20Mpa;
Polyethylene is the mixing of high density polyethylene(HDPE), Low Density Polyethylene, linear low density polyethylene, and the quality melt flow rate (MFR) of described polyethylene under 230 ℃ of temperature, load 21.17N condition is 10.0～40.0g/10min, tensile strength >=15Mpa;
Glass fibre is alkali-free glass fiber, and its Fibre diameter is 8～20 μ m;
The particle diameter of calcium sulfate crystal whiskers is 3～15 μ m;
Elastomerics be in polybutadiene rubber, styrene-butadiene rubber(SBR), nitrile rubber, ethylene propylene rubber, terpolymer EP rubber, Toughening Effect of Ethylene Copolymer Elastomer mixing;
Compatilizer is the mixing in polypropylene grafted vinylformic acid, toxilic acid, maleic anhydride, glycidyl acrylate;
Initiator is peroxidation tert-butyl acetate;
Oxidation inhibitor is Hinered phenols antioxidant;
Other auxiliary agents are pigment;
In embodiment 6:
Polypropylene is atactic polypropylene(APP), and the quality melt flow rate (MFR) of described polypropylene under 230 ℃ of temperature, load 21.17N condition is 2.0～50.0g/10min, tensile strength >=20Mpa;
Polyethylene is high density polyethylene(HDPE), and the quality melt flow rate (MFR) of described polyethylene under 230 ℃ of temperature, load 21.17N condition is 10.0～40.0g/10min, tensile strength >=15Mpa;
Glass fibre is alkali-free glass fiber, and its Fibre diameter is 8～20 μ m;
The particle diameter of calcium sulfate crystal whiskers is 3～15 μ m;
Elastomerics is the mixing of polybutadiene rubber, styrene-butadiene rubber(SBR), nitrile rubber, ethylene propylene rubber, terpolymer EP rubber, Toughening Effect of Ethylene Copolymer Elastomer;
Compatilizer is the mixing in polypropylene grafted vinylformic acid, toxilic acid, maleic anhydride, glycidyl acrylate;
Initiator is peroxidation tert-butyl acetate;
Oxidation inhibitor is Hinered phenols antioxidant;
Other auxiliary agents are anti UV agent;
Step 2, by described polypropylene, polyethylene, elastomerics, compatilizer, oxidation inhibitor, other auxiliary agents are placed in high-speed mixer and mixing 5～10min, discharging, described glass fibre and described calcium sulfate crystal whiskers are added to forcing machine by side spout, extrude at dual-screw-stem machine, cooling, granulation, finally particle is dried, obtain low floating fine glass and strengthen high-gloss polypropylene matrix material, the rotating speed of described twin screw extruder is 200～500r/min, forcing machine is set to from the temperature setting that is fed to head: 165 ℃, 170 ℃, 175 ℃, 180 ℃, 190 ℃, 190 ℃, 190 ℃, 185 ℃, 180 ℃, vacuum tightness≤0.06MPa.The twin-screw extrusion complete processing that embodiment 1～6 relates to is listed in shown in table 2.
Table 2
Figure BDA0000463001470000071
Above specific embodiments of the invention are described.It will be appreciated that, the present invention is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present invention.

Claims (10)

1. a low floating fine high gloss glass fiber reinforced polypropylene composite material, is characterized in that, described matrix material comprises each component of following parts by weight:
Figure FDA0000463001460000011
The particle diameter of described calcium sulfate crystal whiskers is 3～15 μ m, and described elastomerics is one or both the mixing in thermoplastic elastomer, thermo-setting elastomer.
2. low floating fine high gloss glass fiber reinforced polypropylene composite material as claimed in claim 1, it is characterized in that, described polypropylene is one or more the mixing in atactic polypropylene(APP), Isotactic polypropylene, syndiotactic polypropylenes, the quality melt flow rate (MFR) of described polypropylene under 230 ℃ of temperature, load 21.17N condition is 2.0～50.0g/10min, tensile strength >=20Mpa.
3. low floating fine high gloss glass fiber reinforced polypropylene composite material as claimed in claim 1, it is characterized in that, described polyethylene is one or more the mixing in high density polyethylene(HDPE), Low Density Polyethylene, linear low density polyethylene, the quality melt flow rate (MFR) of described polyethylene under 230 ℃ of temperature, load 21.17N condition is 10.0～40.0g/10min, tensile strength >=15Mpa.
4. low floating fine high gloss glass fiber reinforced polypropylene composite material as claimed in claim 1, is characterized in that, described glass fibre is alkali-free glass fiber, and its Fibre diameter is 8～20 μ m.
5. low floating fine high gloss glass fiber reinforced polypropylene composite material as claimed in claim 1, it is characterized in that, described elastomerics is one or more the mixing in polybutadiene rubber, styrene-butadiene rubber(SBR), nitrile rubber, ethylene propylene rubber, terpolymer EP rubber, Toughening Effect of Ethylene Copolymer Elastomer.
6. low floating fine high gloss glass fiber reinforced polypropylene composite material as claimed in claim 1, is characterized in that, described compatilizer is one or more the mixing in polypropylene grafted vinylformic acid, toxilic acid, maleic anhydride, glycidyl acrylate.
7. low floating fine high gloss glass fiber reinforced polypropylene composite material according to claim 1, it is characterized in that, described initiator is any in peroxidation tert-butyl acetate, dicumyl peroxide, di-t-butyl peroxide DTBP or peroxidized t-butyl perbenzoate TPB.
8. low floating fine high gloss glass fiber reinforced polypropylene composite material as claimed in claim 1, is characterized in that, described oxidation inhibitor is Hinered phenols antioxidant.
9. low floating fine high gloss glass fiber reinforced polypropylene composite material as claimed in claim 1, is characterized in that, described other auxiliary agents are thermo-stabilizer, lubricant, anti UV agent or pigment.
10. a preparation method for low floating fine high gloss glass fiber reinforced polypropylene composite material as claimed in claim 1, is characterized in that, said method comprising the steps of:
Weigh each component by following parts by weight proportioning:
Figure FDA0000463001460000021
By described polypropylene, polyethylene, elastomerics, compatilizer, oxidation inhibitor, other auxiliary agents are placed in high-speed mixer and mixing 5～10min, discharging, described glass fibre and described calcium sulfate crystal whiskers are added to forcing machine by side spout, extrude at dual-screw-stem machine, cooling, granulation, finally particle is dried, obtain low floating fine glass and strengthen high-gloss polypropylene matrix material, the rotating speed of described twin screw extruder is 200～500r/min, forcing machine is set to from the temperature setting that is fed to head: 165 ℃, 170 ℃, 175 ℃, 180 ℃, 190 ℃, 190 ℃, 190 ℃, 185 ℃, 180 ℃, vacuum tightness≤0.06MPa.
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CN108047561A (en) * 2017-12-25 2018-05-18 江雨仙 It is a kind of for composite material of household appliance shell and preparation method thereof
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CN108342019A (en) * 2018-03-23 2018-07-31 方苏婉 Anti-oxidant antiultraviolet safety cap formula
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CN116970242B (en) * 2023-09-22 2023-12-08 一夫科技股份有限公司 Calcium sulfate whisker reinforced polypropylene and preparation method thereof

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