CN102367312A - Flame retardant low foaming polypropylene material and preparation method thereof - Google Patents
Flame retardant low foaming polypropylene material and preparation method thereof Download PDFInfo
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- CN102367312A CN102367312A CN2011102867262A CN201110286726A CN102367312A CN 102367312 A CN102367312 A CN 102367312A CN 2011102867262 A CN2011102867262 A CN 2011102867262A CN 201110286726 A CN201110286726 A CN 201110286726A CN 102367312 A CN102367312 A CN 102367312A
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- polypropylene material
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- 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
- B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
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- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/05—Filamentary, e.g. strands
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- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- 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
- 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
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
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- 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
- B29C2948/92704—Temperature
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- 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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
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- 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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Abstract
The invention discloses a flame retardant low foaming polypropylene material and a preparation method thereof. The material comprises, by mass, 10 to 90% of polypropylene, 5 to 30% of a thermally decomposing inorganic substance, 3 to 40% of a halogen-free fire retardant, 1 to 20% of a thermoplastic elastomer, 0.1 to 1% of an anti-oxidant, 0.1 to 3% of a lubricant and 0 to 5% of a functional auxiliary agent. According to the invention, the inorganic substance with low thermal decomposition temperature is added into a polypropylene resin as a foaming agent, and water vapor generated in the decomposition of the inorganic substance is utilized for formation of bubbles; the halogen-free fire retardant is added at the same time, which enables the polypropylene resin to have a certain degree of flame resistance, thereby enlarging the utilization scope of the polypropylene resin; a pre-foaming polypropylene material is obtained through blending fusion extrusion and granulation of an obtained mixture with an extruder, and then a variety of foaming products are produced by utilizing molding equipment like injection molding or mould pressing equipment.
Description
Technical field
The present invention relates to the modification technology field of polymer composite, specifically, relate to a kind of fire-retardant low foaming polypropylene material and preparation method thereof.
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Background technology
Porous plastics principal item has urethane (PU), PS (PS) and foamed polyolefine plastic three major types.There is harmful residue in foaming PU in foaming process, and can't recycle; The PS foam takes place softening and distortion when using more than 105 ℃, and the polythene PE foam is also seldom using more than 100 ℃, and Vestolen PP 7052 PP foamy heat-drawn wire can be used in hot environment than higher (more than 110 ℃); PP foamy static load ability is superior to PE, and amorphous PS at room temperature is in vitreous state, and impact property is relatively poor, and because the PP foam is easy to recycle, its environment friendly is superior to other foam materials.Just be based on above-mentioned advantage, the PP foam material especially has competitive power in the application of automotive industry and food packaging industry in the application of many industrial circles, can substitute existing P S and PE foam, and prospect is boundless.
Though the PP foam material has the characteristic of above-mentioned excellence, because the PP oxygen index is very low, very easily to compare incendivity higher for burning, particularly expanded molded article and non-expanded molded article, so common PP foam material has easy incendiary shortcoming.All require to have flame retardant resistance or self-gravitation property for automobile component, material of construction and electric product parts in recent years, therefore give the certain flame retardant resistance of PP foam material and just seem very important.
Patent of invention CN1302828A discloses a kind of fire retardant polyolefin foamed body composition and method of manufacture thereof, and this system is by polyolefine and rubber mix, inorganic system of remix and chlorine-based flame retardant, whipping agent, vulcanizing agent and other additives; Said composition adopts halogen flame; It is harmful to produce toxic gas during burning, is unfavorable for environmental safety, and mainly adopts chlorinatedpolyethylene and SE; Be easy to thermolysis during this type materials processed, require tighter processing conditions.
Patent of invention CN1665866A discloses a kind of perforate polypropylene foam particulate preparation method; Wherein whipping agent is that boiling point is-5 ℃ to 150 ℃ a organic cpds; Or inorganic gas; The evaporable organic gas can damage HUMAN HEALTH when selecting the organic cpds foaming for use, and abscess-size is restive when selecting the inorganic gas foaming for use.
Summary of the invention
The object of the present invention is to provide a kind of technology simple, Environmental Safety, halogen-free flameproof low foaming polypropylene material of excellent performance and preparation method thereof.
To achieve these goals, the present invention adopts following technical scheme:
A kind of fire-retardant low foaming polypropylene material, form by mass percentage by following component:
Vestolen PP 7052 10～90%
Thermolysis inorganics (whipping agent) 5～30%
Halogen-free flame retardants 3～40%
Thermoplastic elastomer 1～20%
Oxidation inhibitor 0.1～1%
Lubricant 0.1～3%
Other functional agent 0～5%;
Wherein, said Vestolen PP 7052 comprises various granular, powderies, blocky recovery Vestolen PP 7052 or primary copolymerization, HOPP and blend thereof;
Said thermolysis inorganics is a kind ofly can decompose the metal hydroxides that produces water vapour at a lower temperature, the white lake Al (OH) that can decompose in the time of preferred 220 ℃
3, powder diameter is 0.5～2um.The thermolysis inorganics is a kind of inorganic metal oxyhydroxide, is heated and can decomposes generation water vapour, forms abscess at material internal, mainly plays whipping agent in the present invention; In addition, this metal hydroxides can not decompose in polyacrylic processing temperature scope fully, so the abscess-size that produces is less, material still has certain mechanical strength, and undecomposed part can play the effect of fire retardant when burning.
Said halogen-free flame retardants comprises one or more in red phosphorus, ammonium polyphosphate, SULPHOSUCCINIC ACID ESTER, the zinc borate.Halogen-free flame retardants in the system can provide the foam excellent flame-retardant; The main inorganic flame retardant of selecting among the present invention; This based flame retardant is heated non-volatile; Play starvation and decompose to discharge on the surface that flame retardancy gas covers plastics, simultaneously on the surface of material, can reduce the temperature of material surface through decomposing thermo-negative reaction.
Said thermoplastic elastomer comprises terpolymer EP rubber, ethylene-octene copolymer, TPO, ethylene propylene rubber, one or both in the styrene-butadiene-styrene multipolymer.Thermoplastic elastomer can improve the impelling strength of the melt strength and the material of acrylic resin; Prevent that cell wall causes bubble generation to subside and the disruptive phenomenon because of bearing excessive tensile stress in the bubble propagation process, make material obtain the isostatic physical and mechanical property.
Said oxidation inhibitor is one or more in antioxidant 1010, oxidation inhibitor 168, the anti-oxidant DLTP; The effect of oxidation inhibitor is to improve the polyacrylic thermostability that receives, and avoids Vestolen PP 7052 to receive in the thermal process and strong oxidizing substance effect such as oxygen, and oxidative degradation takes place.
Said lubricant is one or more among calcium stearate, Zinic stearas, Triple Pressed Stearic Acid, white oil, the ethylene bis stearamide EBS; Add examples of suitable lubricants will effectively improve material in the course of processing with the friction of machinery and equipment, cut down the consumption of energy.
Other functional agents comprise ultraviolet-resistant absorbent, toner or Masterbatch etc.Auxiliary agents such as other pigment and uv-absorbing agent can be selected to add according to demand.
Above-mentioned fire-retardant low foaming polypropylene preparation methods comprises the steps:
(1) with each component according to the proportioning weighing, join then and stir 5～30 minutes in the stirrer;
The above-mentioned material that (2) will stir joins in the twin screw extruder; The temperature of each heating zone of control forcing machine is between 100～180 ℃; The screw speed of main frame is 250～330r/min, and the rotating speed of hopper feed screw rod is 24～35r/min, and then the material blended melting is extruded;
(3) above-mentioned grain bar is through the tank cooling, and air-dry back gets into dicing machine and carries out pelletizing, get final product fire-retardant low foaming polypropylene material.
Utilize the method for the flame-retardant expanded goods of above-mentioned fire-retardant low foaming polypropylene material prepn; Comprise the steps: the processing mode of fire-retardant low foaming polypropylene material through injection moulding or compression molding; 220～230 ℃ of control mold temperatures can prepare difform flame-retardant expanded goods.
Compared with prior art; The present invention has following positively effect: adopt (1) can be whipping agent at the metal hydroxides of thermolysis generation water vapour under the coldcondition; Technology is simple; The production process non-environmental-pollution, product safety, health still do not have at present and find to report as STUDY ON FOAMING AGENT; (2) adopt thermoplastic elastomer can improve the melt viscosity of matrix resin on the one hand; Improve the melt strength of acrylic resin; Prevent that the excessive bubble generation that causes of tensile stress that cell wall is born subsides and the disruptive phenomenon in the bubble propagation process, can improve the impelling strength of material on the other hand; (3) add the flame retardant properties that halogen-free flame retardants has improved foam in the system, changed the best halogen flame retardant system of existing traditional result of use, solved the environmental problem of using the halogen flame retardant system to bring, and improved the flame retardant properties of material.(4) foam of this invention preparation has environmental compatibility, stability and flame retardant resistance widely, has effects such as insulation, protection, damping, can be applicable to material of construction, trolley part, sports goods, packaging industry and other industrial circles.
Embodiment
Embodiment 1
Carry out proportioning by following mass percent composition: COPP (MI:7.5g/10min) 45.6%, white lake (particle diameter 1.5um) 35%, red phosphorus 10%; Ethylene-octene copolymer 8%; Antioxidant 1010 and oxidation inhibitor 168 each 0.1%, Zinic stearas 0.2%, Masterbatch 1%.Above-mentioned material joined stir 10min in the impeller, it is 38:1 that the above-mentioned material that will stir then joins length-to-diameter ratio L/D, and screw diameter is in the hopper of parallel double-screw extruder of 30mm; Set forcing machine each from the hopper to the die head section temperature and be respectively (totally six districts): 150 ℃, 160 ℃, 170 ℃; 170 ℃, 175 ℃, 180 ℃; The screw speed of main frame is 300r/min, and the rotating speed of hopper feed screw rod is 28r/min, and then the material blended melting is extruded; Above-mentioned grain bar is through the tank cooling, and air-dry back gets into dicing machine and carries out pelletizing, get final product fire-retardant low foaming polypropylene material.Get sample segment and carry out physical blowing and flame retardant properties test, the result sees table 1.
Embodiment 2
Carry out proportioning by following mass percent composition: COPP (MI:7.5g/10min) 48.6%; White lake (particle diameter 1.5um) 25%; Red phosphorus (microcapsule encapsulated red phosphorus) 15%, ethylene-octene copolymer 10%, antioxidant 1010 and oxidation inhibitor 168 each 0.1%; Calcium stearate 0.2%, Masterbatch 1%.Above-mentioned material joined stir 10min in the impeller, it is 38:1 that the above-mentioned material that will stir then joins length-to-diameter ratio L/D, and screw diameter is in the hopper of parallel double-screw extruder of 30mm; Set forcing machine each from the hopper to the die head section temperature and be respectively (totally six districts): 150 ℃, 160 ℃, 170 ℃; 170 ℃, 180 ℃, 180 ℃; The screw speed of main frame is 300r/min, and the rotating speed of hopper feed screw rod is 28r/min, and then the material blended melting is extruded; Above-mentioned grain bar is through the tank cooling, and air-dry back gets into dicing machine and carries out pelletizing, get final product fire-retardant low foaming polypropylene material.Get sample segment and carry out physical blowing and flame retardant properties test, the result sees table 1.
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Embodiment 3
Carry out proportioning by following mass percent composition: reclaim Vestolen PP 7052 regeneration grain (MI:5.3g/10min) 58.6%; White lake (particle diameter 0.7um) 15%; Triphenylphosphate 20%, ethylene-octene copolymer 5%, antioxidant 1010 and oxidation inhibitor 168 each 0.1%; Calcium stearate 0.2%, Masterbatch 1%.Above-mentioned material joined stir 10min in the impeller, it is 38:1 that the above-mentioned material that will stir then joins length-to-diameter ratio L/D, and screw diameter is in the hopper of parallel double-screw extruder of 30mm; Set forcing machine each from the hopper to the die head section temperature and be respectively (totally six districts): 150 ℃, 160 ℃, 170 ℃; 170 ℃, 180 ℃, 180 ℃; The screw speed of main frame is 280r/min, and the rotating speed of hopper feed screw rod is 27r/min, and then the material blended melting is extruded; Above-mentioned grain bar is through the tank cooling, and air-dry back gets into dicing machine and carries out pelletizing, get final product fire-retardant low foaming polypropylene material.Get sample segment and carry out physical blowing and flame retardant properties test, the result sees table 1.
Embodiment 4
Carry out proportioning by following mass percent composition: reclaim Vestolen PP 7052 regeneration grain (MI:5.3g/10min) 63.6%; White lake (particle diameter 0.7um) 20%, red phosphorus 5%, triphenylphosphate 5%; Terpolymer EP rubber 5%; Antioxidant 1010 and oxidation inhibitor 168 each 0.1%, calcium stearate 0.2%, Masterbatch 1%.Above-mentioned material joined stir 10min in the impeller, it is 38:1 that the above-mentioned material that will stir then joins length-to-diameter ratio L/D, and screw diameter is in the hopper of parallel double-screw extruder of 30mm; Set forcing machine each from the hopper to the die head section temperature and be respectively (totally six districts): 150 ℃, 160 ℃, 170 ℃; 170 ℃, 180 ℃, 180 ℃; The screw speed of main frame is 280r/min, and the rotating speed of hopper feed screw rod is 27r/min, and then the material blended melting is extruded; Above-mentioned grain bar is through the tank cooling, and air-dry back gets into dicing machine and carries out pelletizing, get final product fire-retardant low foaming polypropylene material.Get sample segment and carry out physical blowing and flame retardant properties test, the result sees table 1.
Embodiment 5
Carry out proportioning by following mass percent composition: HOPP (MI:10.3g/10min) 63.6%, white lake (particle diameter 1.8um) 25%, red phosphorus 5%; Terpolymer EP rubber 5%; Antioxidant 1010 and oxidation inhibitor 168 each 0.1%, calcium stearate 0.2%, Masterbatch 1%.Above-mentioned material joined stir 10min in the impeller, it is 38:1 that the above-mentioned material that will stir then joins length-to-diameter ratio L/D, and screw diameter is in the hopper of parallel double-screw extruder of 30mm; Set forcing machine each from the hopper to the die head section temperature and be respectively (totally six districts): 150 ℃, 160 ℃, 170 ℃; 170 ℃, 180 ℃, 180 ℃; The screw speed of main frame is 300r/min, and the rotating speed of hopper feed screw rod is 27r/min, and then the material blended melting is extruded; Above-mentioned grain bar is through the tank cooling, and air-dry back gets into dicing machine and carries out pelletizing, get final product fire-retardant low foaming polypropylene material.Get sample segment and carry out physical blowing and flame retardant properties test, the result sees table 1.
Comparative Examples 1
Form by following mass percent and to carry out proportioning: low density polyethylene 63.6%, white lake (particle diameter 1.8um) 25%, red phosphorus 5%, terpolymer EP rubber 5%, antioxidant 1010 and oxidation inhibitor 168 respectively 0.1%, calcium stearate 0.2%, Masterbatch 1%.Above-mentioned material joined stir 10min in the impeller, it is 38:1 that the above-mentioned material that will stir then joins length-to-diameter ratio L/D, and screw diameter is in the hopper of parallel double-screw extruder of 30mm; Set forcing machine each from the hopper to the die head section temperature and be respectively (totally six districts): 150 ℃, 160 ℃, 170 ℃; 170 ℃, 180 ℃, 180 ℃; The screw speed of main frame is 300r/min, and the rotating speed of hopper feed screw rod is 27r/min, and then the material blended melting is extruded; Above-mentioned grain bar is through the tank cooling, and air-dry back gets into dicing machine and carries out pelletizing, get final product fire-retardant low foaming polypropylene material.Get sample segment and carry out physical blowing and flame retardant properties test, the result sees table 1.
Comparative Examples 2
Form by following mass percent and to carry out proportioning: PS PS 63.6%, white lake (particle diameter 1.8um) 25%, red phosphorus 5%, terpolymer EP rubber 5%, antioxidant 1010 and oxidation inhibitor 168 respectively 0.1%, calcium stearate 0.2%, Masterbatch 1%.Above-mentioned material joined stir 10min in the impeller, it is 38:1 that the above-mentioned material that will stir then joins length-to-diameter ratio L/D, and screw diameter is in the hopper of parallel double-screw extruder of 30mm; Set forcing machine each from the hopper to the die head section temperature and be respectively (totally six districts): 150 ℃, 160 ℃, 170 ℃; 170 ℃, 180 ℃, 180 ℃; The screw speed of main frame is 300r/min, and the rotating speed of hopper feed screw rod is 27r/min, and then the material blended melting is extruded; Above-mentioned grain bar is through the tank cooling, and air-dry back gets into dicing machine and carries out pelletizing, get final product fire-retardant low foaming polypropylene material.Get sample segment and carry out physical blowing and flame retardant properties test, the result sees table 1.
The performance index of gained material are as shown in table 1 in the foregoing description:
Table 1
Claims (10)
1. polypropylene material is characterized in that being made up of by mass percentage following component:
Vestolen PP 7052 10～90%
Thermolysis inorganics 5～30%
Halogen-free flame retardants 3～40%
Thermoplastic elastomer 1～20%
Oxidation inhibitor 0.1～1%
Lubricant 0.1～3%
Functional agent 0～5%.
2. polypropylene material as claimed in claim 1 is characterized in that, said thermolysis inorganics is a kind ofly can decompose the metal hydroxides that produces water vapour at a lower temperature.
3. polypropylene material as claimed in claim 2 is characterized in that, said thermolysis inorganics is white lake Al (OH)
3
4. polypropylene material as claimed in claim 1 is characterized in that, said halogen-free flame retardants is one or more in red phosphorus, ammonium polyphosphate, SULPHOSUCCINIC ACID ESTER, the zinc borate.
5. polypropylene material as claimed in claim 1; It is characterized in that said thermoplastic elastomer is one or both in terpolymer EP rubber, ethylene-octene copolymer, TPO, ethylene propylene rubber, the styrene-butadiene-styrene multipolymer.
6. polypropylene material as claimed in claim 1 is characterized in that, said oxidation inhibitor is one or more in antioxidant 1010, oxidation inhibitor 168, the anti-oxidant DLTP.
7. polypropylene material as claimed in claim 1 is characterized in that, said lubricant is one or more mixing among calcium stearate, Zinic stearas, Triple Pressed Stearic Acid, white oil, the ethylene bis stearamide EBS.
8. polypropylene material as claimed in claim 1 is characterized in that said functional agent comprises ultraviolet-resistant absorbent, toner or Masterbatch.
9. the preparation method of the said polypropylene material of claim 1 is characterized in that, comprises the steps:
(1) with each component according to the proportioning weighing, join then and stir 5～30 minutes in the stirrer;
The above-mentioned material that (3) will stir joins in the twin screw extruder; The temperature of each heating zone of control forcing machine is between 100～180 ℃; The screw speed of main frame is 250～330r/min, and the rotating speed of hopper feed screw rod is 24～35r/min, and then the material blended melting is extruded;
(4) above-mentioned grain bar is through the tank cooling, and air-dry back gets into dicing machine and carries out pelletizing, get final product fire-retardant low foaming polypropylene material.
10. utilize the said polypropylene material of claim 1 to prepare the method for flame-retardant expanded goods; It is characterized in that comprising the steps: with the processing mode of fire-retardant low foaming polypropylene material through injection moulding or compression molding; 220～230 ℃ of control mold temperatures can prepare difform flame-retardant expanded goods.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102827401A (en) * | 2012-10-08 | 2012-12-19 | 西华大学 | Flame-retardant composite material and preparation method thereof |
| CN103275397A (en) * | 2013-06-21 | 2013-09-04 | 福建省晋江市晋亿鞋材有限公司 | Modified micropore foaming polypropylene material and preparation method thereof |
| CN105255016A (en) * | 2015-11-05 | 2016-01-20 | 广州市聚赛龙工程塑料有限公司 | Efficient halogen-free flame retardant master batches special for polypropylene as well as preparation method and application of efficient halogen-free flame retardant master batches |
| CN105885241A (en) * | 2016-05-05 | 2016-08-24 | 无锡会通轻质材料股份有限公司 | Preparation method of foamed polypropylene beads with uniform color and high welding performance |
| CN106566073A (en) * | 2016-10-21 | 2017-04-19 | 广西师范学院 | Polypropylene modified material and preparation method thereof |
| CN106589594A (en) * | 2016-12-10 | 2017-04-26 | 温州任和文化创意有限责任公司 | Antibacterial inflaming retarding polypropylene foam material and preparing method thereof |
| CN107674298A (en) * | 2017-09-30 | 2018-02-09 | 江苏省农业科学院 | A kind of insulation material based on polyacrylic agricultural booth side skirt film |
| CN107880392A (en) * | 2017-11-30 | 2018-04-06 | 广西景康商贸有限公司 | A kind of expanded material of fire-retardant heat insulation and preparation method thereof |
| CN110405978A (en) * | 2019-07-19 | 2019-11-05 | 南京法宁格节能科技股份有限公司 | A kind of continuous producing method of modified epdm/PP physical foaming material |
| WO2020215700A1 (en) * | 2019-04-23 | 2020-10-29 | 台州市黄岩广环工贸有限公司 | Halogen-free flame retardant polypropylene material for electrical contact parts of electric vehicles in accordance with gb17761-2018 and injection molding process therefor |
| CN113563630A (en) * | 2021-08-11 | 2021-10-29 | 江苏中科聚合新材料产业技术研究院有限公司 | Preparation method and application of durable hydrophilic polypropylene foaming particles |
| CN115260655A (en) * | 2022-08-18 | 2022-11-01 | 广州市聚赛龙工程塑料股份有限公司 | Polypropylene composite material and preparation method and application thereof |
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| CN102827401A (en) * | 2012-10-08 | 2012-12-19 | 西华大学 | Flame-retardant composite material and preparation method thereof |
| CN103275397A (en) * | 2013-06-21 | 2013-09-04 | 福建省晋江市晋亿鞋材有限公司 | Modified micropore foaming polypropylene material and preparation method thereof |
| CN105255016A (en) * | 2015-11-05 | 2016-01-20 | 广州市聚赛龙工程塑料有限公司 | Efficient halogen-free flame retardant master batches special for polypropylene as well as preparation method and application of efficient halogen-free flame retardant master batches |
| CN105885241A (en) * | 2016-05-05 | 2016-08-24 | 无锡会通轻质材料股份有限公司 | Preparation method of foamed polypropylene beads with uniform color and high welding performance |
| CN106566073A (en) * | 2016-10-21 | 2017-04-19 | 广西师范学院 | Polypropylene modified material and preparation method thereof |
| CN106589594A (en) * | 2016-12-10 | 2017-04-26 | 温州任和文化创意有限责任公司 | Antibacterial inflaming retarding polypropylene foam material and preparing method thereof |
| CN107674298A (en) * | 2017-09-30 | 2018-02-09 | 江苏省农业科学院 | A kind of insulation material based on polyacrylic agricultural booth side skirt film |
| CN107880392A (en) * | 2017-11-30 | 2018-04-06 | 广西景康商贸有限公司 | A kind of expanded material of fire-retardant heat insulation and preparation method thereof |
| WO2020215700A1 (en) * | 2019-04-23 | 2020-10-29 | 台州市黄岩广环工贸有限公司 | Halogen-free flame retardant polypropylene material for electrical contact parts of electric vehicles in accordance with gb17761-2018 and injection molding process therefor |
| CN110405978A (en) * | 2019-07-19 | 2019-11-05 | 南京法宁格节能科技股份有限公司 | A kind of continuous producing method of modified epdm/PP physical foaming material |
| CN110405978B (en) * | 2019-07-19 | 2021-12-14 | 南京法宁格节能科技股份有限公司 | Continuous production method of modified EPDM/PP physical foaming material |
| CN113563630A (en) * | 2021-08-11 | 2021-10-29 | 江苏中科聚合新材料产业技术研究院有限公司 | Preparation method and application of durable hydrophilic polypropylene foaming particles |
| CN115260655A (en) * | 2022-08-18 | 2022-11-01 | 广州市聚赛龙工程塑料股份有限公司 | Polypropylene composite material and preparation method and application thereof |
| CN115260655B (en) * | 2022-08-18 | 2024-04-30 | 广州市聚赛龙工程塑料股份有限公司 | Polypropylene composite material and preparation method and application thereof |
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