CN106380700A - Polypropylene composition for spray-free bumpers and preparation method thereof - Google Patents
Polypropylene composition for spray-free bumpers and preparation method thereof Download PDFInfo
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- CN106380700A CN106380700A CN201610910412.8A CN201610910412A CN106380700A CN 106380700 A CN106380700 A CN 106380700A CN 201610910412 A CN201610910412 A CN 201610910412A CN 106380700 A CN106380700 A CN 106380700A
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- 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
- C08L23/14—Copolymers of propene
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/24—Crystallisation aids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2310/00—Masterbatches
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Abstract
The invention discloses a polypropylene composition for spray-free bumpers and a preparation method thereof. The polypropylene composition comprises the following components in percentage by weight: 20-60% of copolymer polypropylene resin, 10-40% of homopolymer polypropylene resin, 10-20% of toughener, 1-4% of antiaging system aid, 1-5% of scratch-resistant agent, 0.1-0.5% of nucleator, 0.5-3% of lubricant, 0.2-0.5% of coupling agent, 1-15% of high-polymer antistatic agent and 1-3% of master batch. The spray-free bumper prepared from the composition has the advantages of favorable washability, favorable permanent antistatic property, favorable long-term aging resistance and low dependence on the environment. The preparation method comprises the following steps: (1) weighing the materials in percentage by weight; (2) stirring and mixing the raw materials to obtain a premix; and (3) carrying out extrusion granulation on the premix to obtain the polypropylene composition. The method has the advantages of simple production technique and low cost.
Description
Technical field
The present invention relates to material chemistry technical field and in particular to one kind exempt from spray bumper polypropene composition and its
Preparation method.
Background technology
The continuous development requiring with automotive light weight technology, has that low cost, comprehensive mechanical property be good, nontoxic, light weight, corrosion resistant
The PP composite material of many advantages, such as erosion, good electric property, easy processing, easy recovery is widely used in auto parts and components life
Produce, wherein bumper is most representative components.Now, bumper development trend does not require nothing more than with safeguard function, also
Decoration functions to be had, be with car body moulding harmony.The spraying of bumper can meet automobile industry for bumper
Increasingly colorful decoration demand, simultaneously paint can protect thick stick body, slow down the loss of the aging thick stick body function causing and collision cause
Scratch.But because polypropylene material is non-polar material, surface tension is low, and paint film is attached on polypropylene material thick stick body unlike gold
Belong to firm like that, depainting problem is relatively more；And because spraying coating line is related to the problems such as environmental protection, qualification rate and cost, spraying coating process pair
A kind of burden is increasingly becomed for main engine plants.At present, spray coating polypropylene compositionss are exempted from by modified production, fill after injection
Decorations effect and function can mate spraying bumper, become the new demand point of industry.
Studies in China had gone out some and has exempted to spray bumper material in recent years, but these exempt from spraying, and bumper material is multiple greatly
Point focus on how to make bumper surface obtain metallic luster, how to improve the aspects such as adhesion strength, only on consideration face this
Local problem, fails to consider existing bumper overall performance and use environment comprehensively, special including thick stick body and the respective function of paint
Property, such as exempt to spray the wash resistant permanent anti-static of bumper, resisting ageing for long time, shrink and control etc..And exempt from spraying bumper and want
Replace spraying bumper, except outward appearance aspect, the actual application environment of bumper more to be considered.
Specifically, existing spraying bumper material of exempting from is primarily present problems with：
(1) due to exempt from spray bumper do not have paint film protect, except directly facing outside acid rain, ultraviolet, oxide danger
Evil is outer, also has the harm of the metal impurities of catalysis aging action in interior metal toner, and mechanical performance easily in bumper
Decline the problems such as serious, service life is short.
(2) because polypropylene is non-polar material, there is very strong insulating properties, the easy stored charge in surface, this makes thick stick body
Dust is easily adsorbed on surface；Meanwhile, excessive accumulation of static electricity also can cause some perils, and considers bumper use environment and longevity
Life, used in prior art, low molecule type antistatic additive washing fastness is poor, and carwash and drenching with rain all can substantially reduce antistatic and imitate
Really, lead to its antistatic persistency bad, simultaneously because the low molecule type antistatic additive mechanism of action is formed for absorption air moisture
Conductive moisture film, its antistatic property also has larger dependence to ambient humidity.
(3) because existing main engine plants production line is still based on assembling after spraying, this process bumper has two contractions, respectively
It is cooling meat after material injection molding and the contraction of stoving lacquer process, a rear shrinkage ratio is more difficult to be controlled and fluctuate larger, and
Exempt to spray after bumper is molded only through cooling meat, be relatively difficult to meet assembling demand under similarity condition it is therefore desirable to control
The shrinkage factor of prepared material.
Content of the invention
The technical problem to be solved is to overcome the shortcomings of to mention and defect in background above technology, provide one
Plant and exempt to spray bumper polypropene composition and preparation method thereof, exempt from spraying bumper tool by what this polypropene composition was made
Have that good surface property, washing resistance performance are good, permanent antistatic performance is good, resisting ageing for long time function admirable, to condition depended
Little and easily controllable contractibility；The preparation method simple production process of this polypropene composition, low cost.
For solving above-mentioned technical problem, technical scheme proposed by the present invention is：
One kind exempt from spray bumper polypropene composition it is characterised in that：The constitutive material of described polypropene composition
By weight percentage, including each component as follows：
The present invention exempts from addition Polymer Antistatic Agent in spraying bumper polypropene composition, makes the table of bumper
Face is difficult to adsorb dust it is ensured that the cleaning on surface, decreasing and add up the hazardous accidents that cause, and antistatic effect pair because of electric charge
Environmental factor dependence is little, and washing resistance performance is excellent, has permanent anti-static effect.This polypropene composition can be by adjusting poly- third
The addition of alkene, toughener, nucleator etc. controls cooling meat process after product injection, and satisfaction is exempted from spraying bumper and do not dried
The fitted position demand of roasting after-contraction process.The addition of aging resistance system auxiliary agent makes this polypropene composition have higher machine
Tool performance, service life are longer.The polypropene composition being prepared by above-mentioned raw materials proportioning not only has good surface
Performance, and washing resistance performance is good, permanent antistatic performance is good, resisting ageing for long time function admirable, little to condition depended, be easy to control
Contractibility processed.
As the improvement further to technique scheme：
Preferably, described aging resistance system auxiliary agent includes accounting for each component of the following percentage by weight of polypropene composition：Light
Stabilizer 0.1%-1%, heat stabilizer 0.1%-1%, metallic ion passivation agent 0.1%-1%, acid inhibitor 0.1%-1%.This
Invention aging resistance system auxiliary agent is collectively constituted using light stabilizer, heat stabilizer, metallic ion passivation agent and acid inhibitor, metal from
The addition of sub- passivator effectively inhibits the catalytic action to material aging for the impurity in added breeze and metal toner；Acid inhibitor
Add and effectively reduce free cpds to aging impact；Various component synergism in whole aging resistance system auxiliary agent, make
Bumper remains to keep that higher mechanical performance, service life be longer, gloss keeps good under not having paint film protective condition.
It is furthermore preferred that described light stabilizer is hindered amine light stabilizer, azimidobenzene class UV absorbent, salicylic acid
One of phenyl ester class UV absorbent, benzophenone ultraviolet absorbent and benzoates UV absorbent or several
Kind；Described heat stabilizer is one of Hinered phenols heat stabilizer, phosphite ester type thermal stabilizing agent and thioesters type thermal stabilizing agent
Or it is several；Described metallic ion passivation agent is hydrazides class passivator, selected from BASF Irganox 1024, BASF Irgamet
One or more of BTZ, BASF Irgamet TTZ and Ke Laien Hostanox osp；Described acid inhibitor be calcium stearate,
One or more of zinc stearate and Ke Laien Hycite 713.Light stabilizer, heat stabilizer, metallic ion passivation agent and suppression
The reagent that sour agent preferably employs the above-mentioned type can obtain more preferable antiageing effect.
Preferably, described Polymer Antistatic Agent is polyether ester amides, carboxyl trimethylaminyl ethlyl lactone graft inter polymer, carboxylic
The copolymer of base betaine graft inter polymer, quaternary ammonium salt and methacrylate condensation polymer, quaternary ammonium salt and maleimide polycondensation
The copolymer of thing, poly(ethylene oxide), polyetheramides imines, poly(ethylene oxide)-epihalohydrin copolymer, polymer charge move
One or more of type zygosome.
Preferably, described acrylic resin copolymer is melt index 20-40g/10min, and notch impact strength is more than 10KJ/
m2Acrylic resin copolymer and melt index 70-120g/10min, notch impact strength be more than 5KJ/m2COPP tree
One of fat or two kinds；Described HOPP resin for melt index be more than 10g/10min HOPP resin or
One of highly crystalline HOPP resin or two kinds.
Preferably, described toughener includes main toughener and auxiliary toughener, and described main toughener is ethylene-octene copolymerization
One of thing and ethylene-butene copolymer or two kinds, described auxiliary toughener is linear low density polyethylene, low density polyethylene
One or more of alkene and high density polyethylene (HDPE).
Preferably, described damage resistant agent is high molecular weight silicone scratch resistance liniment, selected from DOW CORNING MB50-001, DOW CORNING
One or more of MB50-002, DOW CORNING HMB-0221, damage resistant agent adopts DOW CORNING high molecular weight silicone polymer,
Do not migrate, do not haze, permanently effective so that using said composition manufacture exempt from spray bumper there is excellent surface characteristic；
Described nucleator is organic phosphate compound, aromatic carboxylic acid metal's soap, aliphatic carboxylic acid metal soap, Sorbitol benzal derivant
One or more of.
Preferably, described lubricant is ethylene bis stearic acid amide, Tissuemat E, polypropylene wax, OPE
One or more, not only can be played minimizing friction, improved surface smoothness, improve the work such as Scratch Resistance using above-mentioned lubricant
With the dispersibility of toner with moistening toner, can be improved；Described coupling agent is titanate coupling agent, boric acid ester coupler, aluminic acid
One or more of ester coupling agent；Metal powder and pearl essence is included in described Masterbatch.
Preferably, also include in the constitutive material of described polypropene composition and account for polypropene composition raw material weight percentage
Than the mineral filler less than or equal to 35%；Described mineral filler is Pulvis Talci, and its particle diameter is 0.5-13 micron, and whiteness is more than
90.
As a total inventive concept, another aspect of the present invention provides a kind of above-mentioned to be exempted to spray bumper polypropylene
The preparation method of compositionss, comprises the following steps：
(1) weigh following raw material by weight percentage：Acrylic resin copolymer 20%-60%, HOPP resin
10%-40%, toughener 10%-20%, aging resistance system auxiliary agent 1%-4%, damage resistant agent 1%-5%, nucleator 0.1%-
0.5%th, lubricant 0.5%-3%, coupling agent 0.2%-0.5%, Polymer Antistatic Agent 1%-15%, Masterbatch 1%-
3% and mineral filler 0%-35%；
(2) each raw material being weighed step (1) is added in mixer, stirring mixing, obtains premix material；
(3) step (2) gained premix material is added extruding pelletization in parallel dual-screw extruding machine, that is, obtain exempting from spraying insurance
Thick stick polypropene composition.
Above-mentioned preparation method is it is preferred that in described step (2), the time of described stirring mixing is 2-8min；Described step
Suddenly in (3), the temperature control of described extruding pelletization process at 180-230 DEG C, the main frame frequency of described parallel dual-screw extruding machine
Control in 22-26Hz, in 5-10Hz, vacuum degree control is below -0.06MPa for feeding FREQUENCY CONTROL.This preparation method technique letter
Single, low cost.
Compared with prior art, it is an advantage of the current invention that：
(1) the spraying bumper polypropene composition of exempting from of the present invention has excellent aging resistance characteristic, gold in compositionss
The addition belonging to ion passivator effectively inhibits the catalytic action to material aging for the impurity in added breeze and metal toner；Acid suppression
The addition of agent effectively reduces free cpds to aging impact, and whole aging resistance system makes do not have paint film to protect in bumper
Under the conditions of remain to keep that higher mechanical performance, service life be longer, gloss keeps good.
(2) the spraying bumper polypropene composition of exempting from of the present invention passes through to add Polymer Antistatic Agent, makes insurance
Thick stick surface is difficult to adsorb dust it is ensured that the cleaning on surface, decreasing and add up, because of electric charge, the hazardous accidents that cause, and antistatic effect
Fruit is little to environmental factor dependence, and washing resistance performance is excellent, has permanent anti-static effect.
(3) the spraying bumper polypropene composition of exempting from of the present invention can be by adjusting polypropylene, toughener, mineral filler
And the addition of nucleator, control cooling meat process after product injection, satisfaction is exempted from spraying bumper and do not toasted after-contraction
The fitted position demand of process.
(4) present invention exempt from spray bumper polypropene composition in added lubricating system not only have minimizing friction,
Improve surface smoothness, improve the effect such as Scratch Resistance, its dispersibility can be improved with moistening toner；Resistance to used by said composition
Scuffing agent is DOW CORNING high molecular weight silicone polymer, does not migrate, does not haze, permanently effective.This makes to adopt said composition
The spraying bumper of exempting from manufacturing has excellent surface characteristic.
(5) the spraying bumper polypropene composition of exempting from of the present invention has taken into full account current spraying bumper body and paint
The characteristic of film, had both paid close attention to the cosmetic issue of product production, simultaneously it is contemplated that the use characteristic of product, excellent combination property, gave birth to
Production. art is simple, low cost.
Specific embodiment
For the ease of understanding the present invention, below in conjunction with preferred embodiment, the present invention is made more comprehensively, meticulously to describe,
But protection scope of the present invention is not limited to embodiment in detail below.
Unless otherwise defined, the implication that all technical term used hereinafter is generally understood that with those skilled in the art
Identical.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to limit the present invention
Protection domain.
Unless otherwise specified, the various raw materials used in the present invention, reagent, instrument and equipment etc. all can pass through city
Field is commercially available or can be prepared by existing method.
Embodiment 1：
The present invention exempts to spray a kind of embodiment of bumper polypropene composition and preparation method thereof, this Polypropylene compositions
Thing by weight percentage, including following components：COPP 33.3%, HOPP 32.5%, toughener 13%, anti-
Aging system auxiliary agent 1.2%, damage resistant agent 2%, nucleator 0.2%, lubricant 0.5%, coupling agent 0.3%, polymer electrolyte resist
Electrostatic agent 5%, Masterbatch 2%, mineral filler 10%.
The preparation method of above-mentioned polypropene composition, comprises the following steps：
(1) weigh following raw material：Melt index 20-40g/10min, notch impact strength is more than 10KJ/m2Copolymerization gather
Allyl resin 33.3kg, melt index are more than the HOPP resin 32.5kg of 10g/10min, ethylene-octene copolymer
10kg, linear low density polyethylene 3kg, hindered amine light stabilizer 0.4kg, Hinered phenols heat stabilizer 0.1kg, phosphite ester
Type thermal stabilizing agent 0.1kg, thioesters type thermal stabilizing agent 0.1kg BASF Irganox 1024 0.3kg, calcium stearate 0.2kg, road
Healthy and free from worry MB50-001 2kg, organic phosphate compound 0.2kg, ethylene bis stearic acid amide 0.5kg, titanate coupling agent
0.3kg, polyether ester amides 5kg, Masterbatch 2kg and Pulvis Talci (particle diameter is 0.5-13 micron, and whiteness is more than 90) 10kg.
(2) each raw material being weighed step (1) is added in mixer, stirring mixing 4min, obtains premix material.
(3) step (2) gained premix material is added extruding pelletization in parallel dual-screw extruding machine, control extrusion temperature is
200 DEG C, the main frame frequency of parallel dual-screw extruding machine is 23Hz, and feeding frequency is 7Hz, and vacuum is -0.06MPa, that is, obtain
Exempt to spray bumper polypropene composition.The melt index of this polypropene composition is 35.5g/10min, has high flowing
Property it is easy to thin-walled property bumper injection, be easy to coloring and toner dispersion.
Performance test：
The polypropene composition being prepared by said method is made by injection and exempts to spray bumper.And this is exempted from
The mechanical performance of spraying bumper, ageing resistace, antistatic property, washing resistance performance, scratch resistant performance etc. are tested.Its
In, mechanical performance is passed through to test the acquisition such as melt index, tensile strength and bending strength；The method of testing of ageing resistace is to survey
Examination material surface change and property retention rate, wherein carry out light aging resisting test according to GB/T16422.2；Enter according to GB/T7141
Row heat ageing detects；The method of testing of antistatic property is test material surface resistivity；Washing fastness, mainly test washing
Resistivity afterwards, testing standard is GB1410；The method of testing of scratch resistant performance is swiped for cross and is tested, after being swiped by detection
Surface whiteness value △ L changing value embodies, and the more big then scratch resistance of numerical value is poorer.Specific performance test result is as shown in table 1.
Embodiment 2：
The present invention exempts to spray a kind of embodiment of bumper polypropene composition and preparation method thereof, this Polypropylene compositions
The constitutive material of thing by weight percentage, including following component：Acrylic resin copolymer 28.3%, HOPP resin
22.5%th, toughener 18%, aging resistance system auxiliary agent 1.2%, damage resistant agent 2%, nucleator 0.2%, lubricant 0.5%, idol
Connection agent 0.3%, Polymer Antistatic Agent 5%, Masterbatch 2%, mineral filler 20%.
The preparation method of above-mentioned polypropene composition, comprises the following steps：
(1) weigh following raw material：Melt index 70-120g/10min, notch impact strength is more than 5KJ/m2Copolymerization gather
Allyl resin 28.3kg, highly crystalline HOPP resin 22.5kg, ethylene-butene copolymer 15kg, Low Density Polyethylene
3kg, azimidobenzene class UV absorbent 0.4kg, Hinered phenols heat stabilizer 0.15kg, phosphite ester type thermal stabilizing agent
0.15kg, BASF Irgamet BTZ 0.3kg, zinc stearate 0.2kg, DOW CORNING MB50-002 2kg, aromatic carboxylic acid gold
Belong to soap 0.2kg, Tissuemat E 0.5kg, boric acid ester coupler 0.3kg, carboxyl trimethylaminyl ethlyl lactone graft inter polymer 5kg, color masterbatch
Grain 2kg and Pulvis Talci (particle diameter is 0.5-13 micron, and whiteness is more than 90) 20kg.
(2) each raw material being weighed step (1) is added in mixer, stirring mixing 4min, obtains premix material.
(3) step (2) gained premix material is added extruding pelletization in parallel dual-screw extruding machine, control extrusion temperature is
200 DEG C, the main frame frequency of parallel dual-screw extruding machine is 23Hz, and feeding frequency is 7Hz, and vacuum is -0.06MPa, that is, obtain
Exempt to spray bumper polypropene composition.The melt index of this polypropene composition is 32.1g/10min.
Performance test：
The polypropene composition being prepared by said method is made by injection and exempts to spray bumper.And this is exempted from
The mechanical performance of spraying bumper, ageing resistace, antistatic property, washing resistance performance, scratch resistant performance etc. are tested.Survey
Method for testing is same as Example 1.Specific performance test result is as shown in table 1.
Embodiment 3：
The present invention exempts to spray a kind of embodiment of bumper polypropene composition and preparation method thereof, this Polypropylene compositions
The constitutive material of thing by weight percentage, including following component：Acrylic resin copolymer 23.3%, HOPP resin
15.5%th, toughener 20%, aging resistance system auxiliary agent 1.2%, damage resistant agent 2%, nucleator 0.2%, lubricant 0.5%, idol
Connection agent 0.3%, Polymer Antistatic Agent 5%, Masterbatch 2%, mineral filler 30%.
The preparation method of above-mentioned polypropene composition, comprises the following steps：
(1) weigh following raw material：Melt index 20-40g/10min, notch impact strength is more than 10KJ/m2Copolymerization gather
Allyl resin 3.3kg, melt index 70-120g/10min, notch impact strength is more than 5KJ/m2Acrylic resin copolymer
20kg, melt index are more than the HOPP resin 5.5kg of 10g/10min, highly crystalline HOPP resin 10kg, second
Alkene-octene copolymer 17kg, high density polyethylene (HDPE) 3kg, phenyl salicylate class UV absorbent 0.4kg, Hinered phenols heat are steady
Determine agent 0.15kg, thioesters type thermal stabilizing agent 0.15kg, BASF Irgamet TTZ 0.3kg, Ke Laien Hycite 713
0.2kg, DOW CORNING HMB-0221 2kg, aliphatic carboxylic acid metal soap 0.2kg, polypropylene wax 0.5kg, aluminate coupling agent 0.3kg,
Carboxyl betaine graft inter polymer 5kg, Masterbatch 2kg and Pulvis Talci (particle diameter is 0.5-13 micron, and whiteness is more than 90) 30kg.
(2) each raw material being weighed step (1) is added in mixer, stirring mixing 8min, obtains premix material.
(3) step (2) gained premix material is added extruding pelletization in parallel dual-screw extruding machine, control extrusion temperature is
230 DEG C, the main frame frequency of parallel dual-screw extruding machine is 25Hz, and feeding frequency is 5Hz, and vacuum is -0.06MPa, that is, obtain
Exempt to spray bumper polypropene composition.The melt index of this polypropene composition is 28.7g/10min.
Performance test：
The polypropene composition being prepared by said method is made by injection and exempts to spray bumper.And this is exempted from
The mechanical performance of spraying bumper, ageing resistace, antistatic property, washing resistance performance, scratch resistant performance etc. are tested.Survey
Method for testing is same as Example 1.Specific performance test result is as shown in table 1.
Embodiment 4：
The present invention exempts to spray a kind of embodiment of bumper polypropene composition and preparation method thereof, this Polypropylene compositions
The constitutive material of thing by weight percentage, including following component：Acrylic resin copolymer 38.8%, HOPP resin
10%th, toughener 15%, aging resistance system auxiliary agent 1.2%, damage resistant agent 2%, nucleator 0.2%, lubricant 0.5%, coupling
Agent 0.3%, Polymer Antistatic Agent 10%, Masterbatch 2%, mineral filler 20%.
The preparation method of above-mentioned polypropene composition, comprises the following steps：
(1) weigh following raw material：Melt index 20-40g/10min, notch impact strength is more than 10KJ/m2Copolymerization gather
Allyl resin 38.8kg, melt index be more than the HOPP resin 10kg of 10g/10min, ethylene-butene copolymer 12kg,
Linear low density polyethylene 3kg, benzophenone ultraviolet absorbent 0.4kg, Hinered phenols heat stabilizer 0.15kg, phosphorous acid
Esters heat stabilizer 0.15kg, Ke Laien Hostanox osp 0.3kg, calcium stearate 0.2kg, DOW CORNING MB50-001 2kg,
Sorbitol benzal derivant 0.2kg, OPE 0.5kg, titanate coupling agent 0.3kg, quaternary ammonium salt and methacrylic acid
The copolymer 1 0kg of ester condensation polymer, Masterbatch 2kg and Pulvis Talci (particle diameter is 0.5-13 micron, and whiteness is more than 90) 20kg.
(2) each raw material being weighed step (1) is added in mixer, stirring mixing 5min, obtains premix material.
(3) step (2) gained premix material is added extruding pelletization in parallel dual-screw extruding machine, control extrusion temperature is
210 DEG C, the main frame frequency of parallel dual-screw extruding machine is 22Hz, and feeding frequency is 10Hz, and vacuum is -0.06MPa, that is, obtain
Exempt to spray bumper polypropene composition.The melt index of this polypropene composition is 40g/10min.
Performance test：
The polypropene composition being prepared by said method is made by injection and exempts to spray bumper.And this is exempted from
The mechanical performance of spraying bumper, ageing resistace, antistatic property, washing resistance performance, scratch resistant performance etc. are tested.Survey
Method for testing is same as Example 1.Specific performance test result is as shown in table 1.
What each embodiment gained polypropene composition of table 1 was made exempts to spray the performance test data of bumper
| Test event | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Tensile strength (MPa) | 28.5 | 27.5 | 29.5 | 28.0 |
| Aging after-drawing strength retention (%) | 91% | 93% | 92% | 91% |
| Bending strength (MPa) | 29.5 | 30.0 | 29.0 | 32 |
| Bending strength retention (%) after aging | 88% | 90% | 88% | 92% |
| Izod notched impact strength (KJ/m2) | 45.5 | 48.8 | 51.9 | 48.0 |
| Aging rear impact strength conservation rate (%) | 85% | 87% | 89% | 90% |
| Light aging resisting (gray scale) | 4.5 level | 4.5 level | 4.5 level | 4.5 level |
| Electric conductivity (Ω) | 2.5×1012 | 2.9×1012 | 2.7×1012 | 5.0×1011 |
| Electric conductivity (Ω) after washing | 2.6×1012 | 2.9×1012 | 2.8×1012 | 5.0×1011 |
| Cross scratch △ L | 0.2 | 0.15 | 0.2 | 0.2 |
From table 1, the tensile strength exempting to spray bumper being made up of the polypropene composition of the present invention is in 27-
30MPa, in 29-32MPa, Izod notched impact strength is in 45KJ/m for bending strength2More than, this bumper is described
There is good mechanical performance；Its aging after-drawing strength retention is more than 90%, and aging rear bending strength retention is more than
88%, aging rear impact strength conservation rate is more than 85%, and light aging resisting grade is 4.5 grades, illustrates that this bumper has good
Ageing resistace；Its electric conductivity and washing after electric conductivity all higher and also wash before and after electric conductivity vary less, explanation
This bumper has good antistatic property and washing resistance performance；Its cross scratch △ L (surface whiteness changing value) is less than
0.2, illustrate that it has good scratch resistant performance.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. one kind exempt from spray bumper polypropene composition it is characterised in that：The constitutive material of described polypropene composition is pressed
Percentage by weight meter, including each component as follows：
2. according to claim 1 exempt to spray bumper polypropene composition it is characterised in that described aging resistance system
Auxiliary agent includes accounting for each component of the following percentage by weight of polypropene composition：Light stabilizer 0.1%-1%, heat stabilizer 0.1%-
1%th, metallic ion passivation agent 0.1%-1%, acid inhibitor 0.1%-1%.
3. according to claim 2 exempt from spray bumper polypropene composition it is characterised in that：
Described light stabilizer is hindered amine light stabilizer, azimidobenzene class UV absorbent, phenyl salicylate class ultraviolet
One or more of absorbent, benzophenone ultraviolet absorbent and benzoates UV absorbent；
Described heat stabilizer is one of Hinered phenols heat stabilizer, phosphite ester type thermal stabilizing agent and thioesters type thermal stabilizing agent
Or it is several；
Described metallic ion passivation agent is hydrazides class passivator, selected from BASF Irganox 1024, BASF Irgamet
One or more of BTZ, BASF Irgamet TTZ and Ke Laien Hostanox osp；
Described acid inhibitor is one or more of calcium stearate, zinc stearate and Ke Laien Hycite 713.
4. according to claim 1 exempt from spray bumper polypropene composition it is characterised in that：Described polymer electrolyte resists
Electrostatic agent is polyether ester amides, carboxyl trimethylaminyl ethlyl lactone graft inter polymer, carboxyl betaine graft inter polymer, quaternary ammonium salt and first
The copolymer of copolymer, quaternary ammonium salt and maleimide condensation polymer of base acrylate condensation polymer, poly(ethylene oxide), polyetheramides
One or more of imines, poly(ethylene oxide)-epihalohydrin copolymer, polymer charge mobile model zygosome.
5. according to claim 1 exempt from spray bumper polypropene composition it is characterised in that：
Described acrylic resin copolymer is melt index 20-40g/10min, and notch impact strength is more than 10KJ/m2Copolymerization poly- third
Olefine resin and melt index 70-120g/10min, notch impact strength is more than 5KJ/m2One of acrylic resin copolymer
Or two kinds；
Described HOPP resin is more than HOPP resin or the highly crystalline homopolymerization poly- third of 10g/10min for melt index
One of olefine resin or two kinds.
6. according to claim 1 exempt from spray bumper polypropene composition it is characterised in that：Described toughener includes
Main toughener and auxiliary toughener, described main toughener be one of ethylene-octene copolymer and ethylene-butene copolymer or
Two kinds, described auxiliary toughener is one of linear low density polyethylene, Low Density Polyethylene and high density polyethylene (HDPE) or several
Kind.
7. according to claim 1 exempt from spray bumper polypropene composition it is characterised in that：
Described damage resistant agent is high molecular weight silicone scratch resistance liniment, selected from DOW CORNING MB50-001, DOW CORNING MB50-002, road
One or more of healthy and free from worry HMB-0221；
Described nucleator is organic phosphate compound, aromatic carboxylic acid metal's soap, aliphatic carboxylic acid metal soap, Sorbitol benzal spread out
One or more of biology；
Described lubricant be ethylene bis stearic acid amide, Tissuemat E, polypropylene wax, OPE one or more；
Described coupling agent is one or more of titanate coupling agent, boric acid ester coupler, aluminate coupling agent；
Metal powder and pearl essence is included in described Masterbatch.
8. according to any one of claim 1-7 exempting from spray bumper polypropene composition it is characterised in that：Described
Also include in the constitutive material of polypropene composition and account for polypropene composition raw material weight percentage ratio and be less than or equal to 35%
Mineral filler；Described mineral filler is Pulvis Talci, and its particle diameter is 0.5-13 micron, and whiteness is more than 90.
9. a kind of exempting from as any one of claim 1-8 sprays the preparation method of bumper polypropene composition, bag
Include following steps：
(1) weigh following raw material by weight percentage：Acrylic resin copolymer 20%-60%, HOPP resin 10%-
40%th, toughener 10%-20%, aging resistance system auxiliary agent 1%-4%, damage resistant agent 1%-5%, nucleator 0.1%-0.5%,
Lubricant 0.5%-3%, coupling agent 0.2%-0.5%, Polymer Antistatic Agent 1%-15%, Masterbatch 1%-3% and ore deposit
Thing filler 0%-35%；
(2) each raw material being weighed step (1) is added in mixer, stirring mixing, obtains premix material；
(3) step (2) gained premix material is added extruding pelletization in parallel dual-screw extruding machine, that is, obtain exempting to spray bumper use
Polypropene composition.
10. preparation method according to claim 9 it is characterised in that：In described step (2), described stirring mixing when
Between be 2-8min；In described step (3), the temperature control of described extruding pelletization process at 180-230 DEG C, described parallel dual-screw
, in 22-26Hz, in 5-10Hz, vacuum degree control is below -0.06MPa for feeding FREQUENCY CONTROL for the main frame FREQUENCY CONTROL of extruder.
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| CN106905611A (en) * | 2017-03-20 | 2017-06-30 | 广东圆融新材料有限公司 | A kind of high glaze exempts from spray coating polypropylene composite and preparation method thereof |
| CN108384111A (en) * | 2018-03-05 | 2018-08-10 | 贵州凯科特材料有限公司 | A kind of automobile is exempted to spray scraping-resistant polypropylene material and preparation method thereof |
| CN108440832A (en) * | 2018-02-05 | 2018-08-24 | 青岛国恩科技股份有限公司 | A kind of automotive trim PP composite material and preparation method thereof |
| CN108659337A (en) * | 2018-05-11 | 2018-10-16 | 浙江坤诚塑业有限公司 | A kind of weather-proof PP woven bags material and preparation method thereof |
| CN109517265A (en) * | 2018-10-30 | 2019-03-26 | 江苏金发科技新材料有限公司 | Solvent resistant polypropene composition and preparation method thereof |
| CN110922679A (en) * | 2019-11-14 | 2020-03-27 | 中广核俊尔（上海）新材料有限公司 | Scratch-resistant and light-aging-resistant polypropylene material and preparation method thereof |
| CN111171456A (en) * | 2018-11-13 | 2020-05-19 | 联泓(江苏)新材料研究院有限公司 | Polypropylene composite material and preparation method thereof |
| CN113004614A (en) * | 2021-03-10 | 2021-06-22 | 重庆嘉良塑胶制品有限责任公司 | Spraying-free polypropylene composite material and preparation method thereof |
| CN114213762A (en) * | 2021-11-23 | 2022-03-22 | 金发科技股份有限公司 | High-surface-tension polypropylene material and preparation method and application thereof |
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| CN108440832A (en) * | 2018-02-05 | 2018-08-24 | 青岛国恩科技股份有限公司 | A kind of automotive trim PP composite material and preparation method thereof |
| CN108384111A (en) * | 2018-03-05 | 2018-08-10 | 贵州凯科特材料有限公司 | A kind of automobile is exempted to spray scraping-resistant polypropylene material and preparation method thereof |
| CN108659337A (en) * | 2018-05-11 | 2018-10-16 | 浙江坤诚塑业有限公司 | A kind of weather-proof PP woven bags material and preparation method thereof |
| CN109517265A (en) * | 2018-10-30 | 2019-03-26 | 江苏金发科技新材料有限公司 | Solvent resistant polypropene composition and preparation method thereof |
| CN111171456A (en) * | 2018-11-13 | 2020-05-19 | 联泓(江苏)新材料研究院有限公司 | Polypropylene composite material and preparation method thereof |
| CN110922679A (en) * | 2019-11-14 | 2020-03-27 | 中广核俊尔（上海）新材料有限公司 | Scratch-resistant and light-aging-resistant polypropylene material and preparation method thereof |
| CN113004614A (en) * | 2021-03-10 | 2021-06-22 | 重庆嘉良塑胶制品有限责任公司 | Spraying-free polypropylene composite material and preparation method thereof |
| CN114213762A (en) * | 2021-11-23 | 2022-03-22 | 金发科技股份有限公司 | High-surface-tension polypropylene material and preparation method and application thereof |
| CN114213762B (en) * | 2021-11-23 | 2023-09-26 | 金发科技股份有限公司 | High-surface tension polypropylene material and preparation method and application thereof |
| WO2023102763A1 (en) * | 2021-12-08 | 2023-06-15 | Dow Global Technologies Llc | Thermoplastic polyolefin and molded article therefrom |
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Application publication date: 20170208 |