CN110283385A - A kind of fretting map flame-retardant polypropylene composite material and preparation method thereof - Google Patents
A kind of fretting map flame-retardant polypropylene composite material and preparation method thereof Download PDFInfo
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- CN110283385A CN110283385A CN201910645663.1A CN201910645663A CN110283385A CN 110283385 A CN110283385 A CN 110283385A CN 201910645663 A CN201910645663 A CN 201910645663A CN 110283385 A CN110283385 A CN 110283385A
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
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- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
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- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2433/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
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Abstract
The invention discloses a kind of fretting map anti-flaming polypropylene materials, it prepares raw material based on quality percentage including following components: polypropylene 50%~70%, nucleocapsid rubber particles 10%~20%, hollow glass micropearl 10%~15%, foaming agent master batch 5%~10% and fire retardant 2%~5%, the foaming agent master batch is made by foaming agent, nucleating agent, elastomer and vector resin, wherein, foaming agent is expanded graphite.The invention also discloses a kind of preparation methods of fretting map anti-flaming polypropylene material.The fretting map anti-flaming polypropylene material has more excellent mechanical mechanics property and anti-flammability, and intensity is high, and good toughness, good stability of the dimension, uniform foam cell, foaming quality is good, and production cost is low, and production process is low for equipment requirements.
Description
Technical field
The invention belongs to engineering plastics technical field, in particular to a kind of fretting map anti-flaming polypropylene material and its preparation side
Method.
Background technique
As the requirement of energy consumption and manufacturing cost is higher and higher, metal material used by tradition machinery components is increasingly
It is difficult to adapt to require.High performance plastics of the engineering plastics as construction and component of machine, have light weight, manufacturing cost
It is low, be easy lubrication, noise is low, corrosion-resistant, chemical property is stable, damping, the advantages that manufacturing process is simple, designability is strong, because
This is successfully applied to auto industry field by extensive concern.
Foamed material in engineering plastics is an approach for promoting automotive light weight technology.Micro foaming injection moulding technique is
A kind of precise injection molding technology of innovation, breaches many limitations of traditional injection moulding, can significantly mitigate the weight of product, shorten at
The type period, and significantly improve the buckling deformation and dimensional stability of product.On the precise product that production high quality requires,
Micro foaming injection moulding technique has very big advantage.
Fretting map MODIFIED PP material refers to using polypropylene material as matrix, passes through hair physically or chemically in injection moulding process
Bubble mode, makes product middle layer gather closed porosity of the size from ten to tens micron and there are fine and close epidermal structure in two sides,
To loss of weight about 15-20% or so.Acrylic resin has the characteristics that source is wide, light weight, Yi Huishou, performance are good, is application
It is most wide, most fast one of the resin material of increase of production.Polypropylene micro-foaming material is even more to become engineering plastic with its unique performance
Hot spot in material.In the prior art, polyacrylic foam process generally uses gas foaming technique, still, polyacrylic foaming
Temperature range is very narrow, and foaming process is difficult to control, and is easy to appear the problems such as gas is escaped, distribution of cells is uneven.It is existing
There are at high cost, the high requirements on the equipment, foaming process to be difficult to control for prepare raw material and the foam process of PP foam material
The problems such as, obtained PP foam material quality cannot be met the requirements.In addition, existing polypropylene material is applied to automobile
Industrial circle also needs to improve its anti-flammability and further increases its mechanical performance.
Summary of the invention
In order to solve the above technical problems, the purpose of the present invention is to provide a kind of fretting map anti-flaming polypropylene material and its systems
Preparation Method, the fretting map anti-flaming polypropylene material have more excellent mechanical mechanics property and anti-flammability, and intensity is high, good toughness,
Good stability of the dimension, uniform foam cell, foaming quality is good, and production cost is low, and production process is low for equipment requirements.
To realize above-mentioned technical purpose and the technique effect, the invention is realized by the following technical scheme: Yi Zhongwei
Foamed flame retardant polypropylene material prepares raw material based on quality percentage including following components: polypropylene 50%~70%, nucleocapsid silicon
Rubber particles 10%~20%, hollow glass micropearl 10%~15%, foaming agent master batch 5%~10% and fire retardant 2%~
5%, the foaming agent master batch is made by foaming agent, nucleating agent, elastomer and vector resin, wherein foaming agent is expansion stone
Ink.
Preferably, the fire retardant is compound flame retardant made of expansion type flame retardant and nanoclay compounding.
Preferably, the nucleating agent is super fine calcium carbonate or talcum powder.
Preferably, the elastomer is ethylene-octene copolymer or ethylene-vinyl acetate copolymer.
Preferably, the vector resin is PE resin.
Preferably, the foaming agent master batch is by foaming agent, nucleating agent, elastomer and vector resin according to quality proportioning 10
~15:25~35:15~25:35~40 are granulated by blending extrusion and are made.
Preferably, the nucleocapsid rubber particles are using silicon rubber as core, using poly- methyl ester butyl acrylate as the nucleocapsid of shell
Structure.
The present invention also provides a kind of preparation methods of fretting map anti-flaming polypropylene material, which is characterized in that including following
Step:
(1) polypropylene, nucleocapsid rubber particles and hollow glass micropearl are weighed according to quality proportioning and is added to mixed at high speed
It in machine, is sufficiently mixed uniformly, obtained mixture is then placed in extruding pelletization in double screw extruder, obtain polypropylene enhancing
Master batch；
(2) polypropylene for obtaining step (1) enhances master batch and according to the weighed foaming agent master batch of quality proportioning and resistance
Agent is fired, is put into high-speed mixer, after being sufficiently mixed uniformly, the material after mixing is put into injection molding machine, is opened into
Fretting map anti-flaming polypropylene material is made at 170-210 DEG C, injection time 40-70s in type, injection temperature.
Preferably, the foaming agent master batch is by foaming agent, nucleating agent, elastomer and vector resin according to quality proportioning 10
~15:25~35:15~25:35~40 are granulated by blending extrusion and are made, wherein extrusion temperature is 120-140 DEG C, extruder
The revolving speed of screw rod is 40-60r/min.
The beneficial effects of the present invention are:
(1) of the invention to prepare in raw material using nucleocapsid rubber particles and hollow glass micropearl, wherein nucleocapsid silicon rubber
Particle can be improved as rigid particle, nucleocapsid rubber particles as elastic particle as elastic particle, hollow glass micropearl
The tensile strength, curved of polypropylene material can be improved as rigid particle in the impact flexibility of polypropylene material, hollow glass micropearl
Qu Qiangdu and bending modulus, nucleocapsid rubber particles and hollow glass micropearl can be bringing together, interaction, to polypropylene material
Material plays the effect of coordination plasticizing enhancing；
(2) the foaming agent master batch in the present invention is made of foaming agent, nucleating agent, elastomer and vector resin, wherein hair
Infusion uses expanded graphite；Using expanded graphite as foaming agent, foaming process is non-pneumatic foaming process.Expanded graphite is
A kind of inorganic foaming agent with hot expansion property has suitable expansion temperature and expansion multiple in foaming, is applied to poly-
In propylene, expandable polypropylene material can be prepared, expanded graphite expanded by heating, make it is polypropylene expanded, so that it is poly- to obtain fretting map
Propylene material；Using expanded graphite as foaming agent, do not need it is special prepare raw material, the cost of material is low, and foam process
It is low for equipment requirements, special equipment is not needed, and micro-foaming polypropylene quality of materials obtained is met the requirements, distribution of cells is equal
Even, abscess is small and fine and close, and dimension stability is good；
(3) the foaming agent master batch in the present invention is made of foaming agent, nucleating agent, elastomer and vector resin；It is therein at
Core agent can greatly improve the impact flexibility and tensile strength of micro-foaming polypropylene material；The use of elastomer therein can mention
The melt strength of high abscess surrounding resin, the generation for the defects of to avoid cell collapse and steeping；
(4) fire retardant in the present invention is compound flame retardant made of expansion type flame retardant and nanoclay compounding；Nanometer
Clay is compounded with expansion type flame retardant, can play synergistic flame retardant effect, and nanoclay therein can be in expandable flame retardant layer of charcoal
Middle formation thermostabilization structure, keeps Char Residues Structure finer and close, limits diffusion and the heat of oxygen and thermal degradation fuel gas product
Transmitting, to effectively increase flame retardant effect；
(5) present invention is by the rational design to preparation raw material proportioning, so that micro-foaming polypropylene material obtained has
Optimal mechanical performance and foaming effect, product quality reach best
(6) preparation process of fretting map anti-flaming polypropylene material of the present invention is fairly simple, low for equipment requirements, production cost
Low, high production efficiency is suitable for industrialization production.
Specific embodiment
The preferred embodiments of the present invention will be described in detail below so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that so as to make a clearer definition of the protection scope of the present invention.
Embodiment 1
A kind of fretting map anti-flaming polypropylene material prepares raw material based on quality percentage including following components: polypropylene
50%, nucleocapsid rubber particles 20%, hollow glass micropearl 15%, foaming agent master batch 10% and fire retardant 5%.Foaming agent master batch
It is by foaming agent expanded graphite, nucleating agent super fine calcium carbonate, elastomeric ethylene-acetate ethylene copolymer and PE resin according to matter
Amount proportion 10:30:20:40 is granulated by blending extrusion to be made.Wherein, extrusion temperature is 120 DEG C, and the revolving speed of extruder screw is
40r/min.Preparing the nucleocapsid rubber particles in raw material is using silicon rubber as core, using poly- methyl ester butyl acrylate as the nucleocapsid of shell
Structure.
The preparation method of above-mentioned fretting map anti-flaming polypropylene material, comprising the following steps:
(1) polypropylene, nucleocapsid rubber particles and hollow glass micropearl are weighed according to quality proportioning and is added to mixed at high speed
It in machine, is sufficiently mixed uniformly, obtained mixture is then placed in extruding pelletization in double screw extruder, obtain polypropylene enhancing
Master batch；
(2) polypropylene for obtaining step (1) enhances master batch and according to the weighed foaming agent master batch of quality proportioning and resistance
Agent is fired, is put into high-speed mixer, after being sufficiently mixed uniformly, the material after mixing is put into injection molding machine, is opened into
Fretting map flame-retardant polypropylene composite material is made at 170 DEG C, injection time 40s in type, injection temperature.
Embodiment 2
A kind of fretting map anti-flaming polypropylene material prepares raw material based on quality percentage including following components: polypropylene
70%, nucleocapsid rubber particles 10%, hollow glass micropearl 10%, foaming agent master batch 7% and fire retardant 3%.Foaming agent master batch
It is by foaming agent expanded graphite, nucleating agent talcum powder, elastomeric ethylene-acetate ethylene copolymer and PE resin according to quality proportioning
15:35:15:35 is granulated by blending extrusion and is made.Wherein, extrusion temperature is 130 DEG C, and the revolving speed of extruder screw is 50r/
min.Preparing the nucleocapsid rubber particles in raw material is using silicon rubber as core, using poly- methyl ester butyl acrylate as the nucleocapsid knot of shell
Structure.
The preparation method is the same as that of Example 1 for above-mentioned fretting map anti-flaming polypropylene material.
Embodiment 3
A kind of fretting map anti-flaming polypropylene material prepares raw material based on quality percentage including following components: polypropylene
65%, nucleocapsid rubber particles 15%, hollow glass micropearl 13%, foaming agent master batch 5% and fire retardant 2%.Foaming agent master batch
It is by foaming agent expanded graphite, nucleating agent talcum powder, elastomeric ethylene-acetate ethylene copolymer and PE resin according to quality proportioning
12:28:22:38 is granulated by blending extrusion and is made.Wherein, extrusion temperature is 140 DEG C, and the revolving speed of extruder screw is 60r/
min.Preparing the nucleocapsid rubber particles in raw material is using silicon rubber as core, using poly- methyl ester butyl acrylate as the nucleocapsid knot of shell
Structure.
The preparation method is the same as that of Example 1 for above-mentioned fretting map anti-flaming polypropylene material.
Comparative example
A kind of fretting map anti-flaming polypropylene material prepares raw material based on quality percentage including following components: polypropylene
65%, hollow glass micropearl 25%, foaming agent master batch 8% and fire retardant 2%.Foaming agent master batch is by AC foaming agent, nucleating agent
Talcum powder, elastomeric ethylene-acetate ethylene copolymer and PE resin are made according to quality proportioning 12:28:22:38 by blending extrusion
Grain is made.Wherein, extrusion temperature is 140 DEG C, and the revolving speed of extruder screw is 60r/min.
The preparation method of above-mentioned fretting map anti-flaming polypropylene material, comprising the following steps:
(1) weigh polypropylene according to quality proportioning, hollow glass micropearl is added in high-speed mixer, be sufficiently mixed
It is even, obtained mixture is then placed in extruding pelletization in double screw extruder, obtains polypropylene enhancing master batch；
(2) polypropylene for obtaining step (1) enhances master batch and according to the weighed foaming agent master batch of quality proportioning and resistance
Agent is fired, is put into high-speed mixer, after being sufficiently mixed uniformly, the material after mixing is put into injection molding machine, is opened into
Fretting map flame-retardant polypropylene composite material is made at 170 DEG C, injection time 40s in type, injection temperature.
Performance test
By fretting map anti-flaming polypropylene material prepared by Examples 1 to 3 and comparative example respectively according to standard to its performance
It is tested, the performance test results are shown in Table 1.
The performance test results of 1 fretting map anti-flaming polypropylene material of table
As shown in Table 1, compared with comparative example, the fretting map anti-flaming polypropylene material density of the embodiment of the present invention is small, quality
Gently, abscess is small and fine and close, and abscess is more uniform, good stability of the dimension, and intensity with higher, preferable toughness and excellent
Flame retardant property can satisfy higher use demand, can be widely applied to auto industry field.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (9)
1. a kind of fretting map anti-flaming polypropylene material, which is characterized in that it prepares raw material based on quality percentage including following components:
Polypropylene 50%~70%, nucleocapsid rubber particles 10%~20%, hollow glass micropearl 10%~15%, foaming agent master batch
5%~10% and fire retardant 2%~5%, the foaming agent master batch be by foaming agent, nucleating agent, elastomer and vector resin system
, wherein foaming agent is expanded graphite.
2. a kind of fretting map anti-flaming polypropylene material according to claim 1, which is characterized in that the fire retardant is expansion
Compound flame retardant made of type fire retardant and nanoclay compounding.
3. a kind of fretting map polypropylene flame redardant condensation material according to claim 1, which is characterized in that the nucleating agent is super
Fine calcium carbonate or talcum powder.
4. a kind of fretting map anti-flaming polypropylene material according to claim 1, which is characterized in that the elastomer is second
Alkene-octene copolymer or ethylene-vinyl acetate copolymer.
5. a kind of fretting map flame-retardant polypropylene composite material according to claim 1, which is characterized in that the vector resin
For PE resin.
6. a kind of fretting map flame-retardant polypropylene composite material according to claim 1, which is characterized in that the foaming agent is female
Grain is to be led to by foaming agent, nucleating agent, elastomer and vector resin according to 10~15:25 of quality proportioning~35:15~25:35~40
Blending extrusion granulation is crossed to be made.
7. a kind of fretting map flame-retardant polypropylene composite material according to claim 1, which is characterized in that the nucleocapsid silicon rubber
Micelle is using silicon rubber as core, using poly- methyl ester butyl acrylate as the core-shell structure of shell.
8. a kind of preparation method of fretting map anti-flaming polypropylene material as described in any one of claim 1 to 7, feature exist
In, the following steps are included:
(1) polypropylene, nucleocapsid rubber particles and hollow glass micropearl is weighed according to quality proportioning to be added in high-speed mixer,
It is sufficiently mixed uniformly, obtained mixture is then placed in extruding pelletization in double screw extruder, obtain polypropylene enhancing master batch；
(2) the polypropylene enhancing master batch that obtains step (1) and according to the weighed foaming agent master batch of quality proportioning and fire retardant,
It is put into high-speed mixer, after being sufficiently mixed uniformly, the material after mixing is put into injection molding machine, die sinking molding is carried out, infuse
Temperature is penetrated at 170-210 DEG C, injection time 40-70s, fretting map anti-flaming polypropylene material is made.
9. a kind of preparation method of fretting map anti-flaming polypropylene material according to claim 8, which is characterized in that the hair
Infusion master batch is by foaming agent, nucleating agent, elastomer and vector resin according to 10~15:25 of quality proportioning~35:15~25:35
~40 are made by blending extrusion granulation, wherein extrusion temperature is 120-140 DEG C, and the revolving speed of extruder screw is 40-60r/
min。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116082711A (en) * | 2021-11-05 | 2023-05-09 | 甘肃坤远节能环保科技发展有限公司 | Flame retardant formula containing MCA microcapsule silicone rubber foam and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116082711A (en) * | 2021-11-05 | 2023-05-09 | 甘肃坤远节能环保科技发展有限公司 | Flame retardant formula containing MCA microcapsule silicone rubber foam and preparation method thereof |
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