CN102585378B - High heat resistant glass fiber enhanced halogen-free flame retardant polypropylene and preparation method thereof - Google Patents
High heat resistant glass fiber enhanced halogen-free flame retardant polypropylene and preparation method thereof Download PDFInfo
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- CN102585378B CN102585378B CN201210070457.0A CN201210070457A CN102585378B CN 102585378 B CN102585378 B CN 102585378B CN 201210070457 A CN201210070457 A CN 201210070457A CN 102585378 B CN102585378 B CN 102585378B
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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
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
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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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
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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
-
- 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 high heat resistant glass fiber enhanced halogen-free flame retardant polypropylene and a preparation method of the high heat resistant glass fiber enhanced halogen-free flame retardant polypropylene, belonging to the technical field of high molecular materials. The high heat resistant glass fiber enhanced halogen-free flame retardant polypropylene comprises a polypropylene copolymer and/or a polypropylene homopolymer, a compatilizer, a short glass fiber, a flame retardant, an antioxidant, a plasticizer and a processing additive. The preparation method of the high heat resistant glass fiber enhanced halogen-free flame retardant polypropylene comprises the following steps: 1) weighing the raw materials; 2) adding the compatilizer, the flame retardant, the antioxidant, the plasticizer and the processing additive into a high-speed mixer according to parts by weight in sequence, fully mixing for 1-10 min, then adding the mixed material into a hopper of an extruder; and 3) feeding the polypropylene copolymer and/or the polypropylene homopolymer and the mixture in the step 2) into a main feeding mouth according to parts by weight respectively, feeding the short glass fiber into a side feeding mouth according to parts by weight, melting, blending and extruding in the extruder, drawing and pelletizing. According to the invention, the prepared polypropylene has excellent mechanical property, long-acting high temperature resistance and thermal oxidation performance and high flame retardance.
Description
Technical field
The invention belongs to technical field of polymer materials, be specifically related to a kind of high-heat-resisting glass-fiber and strengthen halogen-free polypropylene flame redardant and production method thereof.
Background technology
Polypropylene material, as a kind of resins for universal use material, is widely used in all trades and professions, and it is good that it has superior chemical resistance, corrosion resistance nature, good mechanical property, processing characteristics, has become the first-selection of numerous modification producer.On market, existing modified polypropylene material can be found everywhere, such as the polypropylene material such as talc, calcium carbonate-filled, glass enhancing.Fiber glass reinforced polypropylene is as a kind of general engineering plastic, there is the performance of high strength, high rigidity, high tenacity, low density, low warpage creep properties, anti-dynamic fatigue property excellence, because its cost performance is high, be widely used in the structure such as automobile, household electrical appliances component, the materials such as substituted metal, nylon.Along with the development in epoch, people are more and more higher to the requirement of quality of the life, and what country was used product plays also more and more attention of fire safety.A lot of glass fiber reinforced materials in the past, only meet the short term need of conventional environment, and long-term effect often cannot meet.
For domestic this vacancy, immediately following the demand in epoch, we carry out deep research and discussion to polypropylene material, are improving the high-intensity while of polypropylene material, also improve the high persistence of material, high flame resistance requirement.
Summary of the invention
The problem existing for prior art, the object of the invention is to design provides a kind of high-heat-resisting glass-fiber with excellent mechanical property, long-acting high temperature heat-resistant oxidation susceptibility and high flame retardant effect to strengthen the technical scheme of halogen-free polypropylene flame redardant and production method thereof.
Described a kind of high-heat-resisting glass-fiber strengthens halogen-free polypropylene flame redardant, it is characterized in that the component that contains following weight parts:
40～90 parts of Co-polypropylene and/or homo-polypropylene
3～20 parts of compatilizers
10～30 parts of short glass fibers
15～40 parts of fire retardants
0～4 part, oxidation inhibitor
0～2 part, softening agent
0～4 part of processing aid.
Described a kind of high-heat-resisting glass-fiber strengthens halogen-free polypropylene flame redardant, it is characterized in that the component that contains following weight parts:
60～80 parts of Co-polypropylene and/or homo-polypropylene
10～15 parts of compatilizers
15～20 parts of short glass fibers
20～30 parts of fire retardants
0.5～2 part, oxidation inhibitor
0.5～1 part, softening agent
0.5～2 part of processing aid.
Described a kind of high-heat-resisting glass-fiber strengthens halogen-free polypropylene flame redardant, it is characterized in that described Co-polypropylene is the Co-polypropylene that the melting index under 230 DEG C, 2.16KG test condition is 10～80g/10min; Described homo-polypropylene is the homo-polypropylene that the melting index under 230 DEG C, 2.16KG test condition is 5～50g/10min.
Described a kind of high-heat-resisting glass-fiber strengthens halogen-free polypropylene flame redardant, the polypropylene that the compatilizer described in it is characterized in that is maleic anhydride graft or the polypropylene of glycidyl acrylate grafting.
Described a kind of high-heat-resisting glass-fiber strengthens halogen-free polypropylene flame redardant, it is characterized in that described fire retardant is halogen-free environment-friendly flame-proof agent, comprise in Melamine Polyphosphate, halogen-free environment-friendly flame-proof agent JLS-PNP series and phosphoric acid ester one or more mixture.
Described a kind of high-heat-resisting glass-fiber strengthens halogen-free polypropylene flame redardant, it is characterized in that described oxidation inhibitor is one or more mixture in Hinered phenols antioxidant, monothioester kind antioxidant and phosphite ester kind antioxidant, described Hinered phenols antioxidant, monothioester kind antioxidant and phosphite ester kind antioxidant is one or more mixture in primary antioxidant and auxiliary antioxidant in this kind antioxidant.
Described a kind of high-heat-resisting glass-fiber strengthens halogen-free polypropylene flame redardant, it is characterized in that described softening agent is one or more mixture in diisobutyl phthalate, dibutyl phthalate, diisobutyl phthalate and epoxyoleic acid butyl ester.
Described a kind of high-heat-resisting glass-fiber strengthens halogen-free polypropylene flame redardant, it is characterized in that described processing aid is N, one or more mixture in N '-ethylene bis stearamide, polyethylene wax, oxidized polyethlene wax, Indonesia's stearic acid and Palmiticacid.
Described a kind of high-heat-resisting glass-fiber strengthens the production method of halogen-free polypropylene flame redardant, it is characterized in that comprising following processing step:
1) take each material copolymerization polypropylene and/or homo-polypropylene, compatilizer, short glass fiber, fire retardant, oxidation inhibitor, softening agent and processing aid;
2) compatilizer of described weight part, fire retardant, oxidation inhibitor, softening agent and processing aid are joined in high mixer successively, fully mix 1～10 minute, then mixed material is added in the hopper of forcing machine;
3) by the Co-polypropylene of described weight part and/or homo-polypropylene and step 2) mixture respectively from main spout charging, the short glass fiber of described weight part is from the charging of side spout, in forcing machine, melt blending is extruded jointly, tie rod pelletizing.
Described a kind of high-heat-resisting glass-fiber strengthens the production method of halogen-free polypropylene flame redardant, it is characterized in that described forcing machine is twin screw extruder, and mixed melting Temperature Setting is: 180～200 DEG C of first paragraphs, 180～210 DEG C of second segments, the 3rd section 190～210 DEG C, the 4th section 200～220 DEG C, the 5th section 210～220 DEG C, the 6th section 200～220 DEG C, the 7th section 200～220 DEG C, the 8th section 210～230 DEG C, the 9th section 210～230 DEG C, the tenth section 210～230 DEG C, 220～230 DEG C of head temperatures.
Compared with prior art, tool has the following advantages and excellent effect in the present invention: 1) the present invention has used efficient antioxidant systems, and prepared matrix material has long-acting high temperature heat-resistant oxidation susceptibility, consistency of performance, and intensity is high; 2) the prepared high-heat-resisting glass-fiber of the present invention strengthens the design of halogen-free anti-flaming polypropylene material employing halogen-free flame retardants, avoid the pollution of halogen flame to life and environment, safety and environmental protection, flame retardant effect is high, long-acting lasting, meet national environmental protection, safety requirements completely; 3) high-heat-resisting glass-fiber that the present invention obtains strengthens halogen-free anti-flaming polypropylene material and has excellent mechanical property, more all improves more than 10% with currently available products mechanical property indices; 4) preparation technology that the high-heat-resisting glass-fiber that the present invention proposes strengthens halogen-free flame retardant polypropylene composite material is simple, and glass fiber content is easily controlled, and flame retardant properties is stable, and has effectively avoided PP to mix uneven deficiency with interpolation auxiliary agent.
Embodiment
Further illustrate the present invention below in conjunction with embodiment, the present invention's umber used is weight part.
The compatilizer that the present invention adds can increase substantially the consistency of acrylic resin and glass, strengthens the interfacial interaction between the two, thereby improves the mechanical strength of material; Oxidation inhibitor mainly plays and suppresses and slow down the effect of the Auto-oxidation reaction of macromolecular material, prevents that polymkeric substance is because of fading and aging effect that processing or use procedure cause simultaneously; Processing aid adds can ensure that material has good mobility in the time of injection moulded products, has reduced Interface Adhesion performance, improves the dispersion effect of auxiliary material in melt simultaneously, makes stable performance; Softening agent add the plasticity that can improve material, showing as toughness increases.
In the present invention, oxidation inhibitor comprises Hinered phenols antioxidant, monothioester kind antioxidant and phosphite ester kind antioxidant.Hinered phenols antioxidant comprises one or more the mixture in Hinered phenols antioxidant, as: antioxidant 1076, antioxidant 330, antioxidant 1010, oxidation inhibitor 1330; Monothioester kind antioxidant comprises one or more the mixture in monothioester kind antioxidant, as: oxidation inhibitor DSTP, oxidation inhibitor 1035, antioxidant 300; Phosphite ester kind antioxidant comprises one or more the mixture in phosphite ester kind antioxidant, as: antioxidant 618, irgasfos 168, oxidation inhibitor 626.
The performance evaluation mode that the present invention is used:
In ventilation type thermal aging oven, carry out thermo-oxidative ageing: 150 DEG C of aging temperatures, until there is efflorescence in batten;
Vertical-horizontal combustion testing machine carries out flame retardant properties test: UL94 standard.
Embodiment 1
By 5.0 parts of maleic anhydride inoculated polypropylenes, 30 parts of fire retardant Melamine Polyphosphate, 1.0 parts of antioxidant 1010s, 1,330 1.0 parts, oxidation inhibitor, 1.0 parts of oxidation inhibitor DSTP, 1.0 parts of irgasfos 168s, 0.2 part of plasticizer phthalic acid diisobutyl ester and processing aid N, 4.0 parts of N '-ethylene bis stearamides, join successively in high mixer, fully mix after 5min, then by 50 parts of mixture and Co-polypropylene and/or homo-polypropylene from main spout charging, simultaneously again by 20 parts of short glass fibers of handling well from the charging of side spout, in forcing machine, melt blending is extruded jointly, tie rod pelletizing.Its melt temperature is set as follows: 200 DEG C of first paragraphs, 210 DEG C of second segments, the 3rd section 210 DEG C, the 4th section 220 DEG C, the 5th section 220 DEG C, the 6th section 210 DEG C, the 7th section 210 DEG C, the 8th section 230 DEG C, the 9th section 230 DEG C, the tenth section 225 DEG C, 225 DEG C of head temperatures.
In the present embodiment, Co-polypropylene is the Co-polypropylene that the melting index under 230 DEG C, 2.16KG test condition is 10～80g/10min, is preferably the Co-polypropylene that melting index is 30～50g/10min; Described homo-polypropylene is the homo-polypropylene that the melting index under 230 DEG C, 2.16KG test condition is 5～50g/10min, is preferably the homo-polypropylene that melting index is 20～30g/10min.
To the material of the present invention obtaining by embodiment 1, by material being carried out to initial stage basic physical properties confirmation, heat oxygen aging resistance experimental verification, by the evaluation comparison of following experiment, confirm the performance (material of the present invention is newly filled a prescription hereinafter referred to as Jinzhou) of material of the present invention:
1. the initial stage basic physical properties comparison with external equivalent material by embodiment 1, table 1 result shows: the initial performance of the material that embodiment 1 obtains is better than external equivalent material.
Table 1
；
2. thermooxidizing test: test conditions: 150 DEG C;
Test batten is put into the thermo-oxidative ageing case of air inerchange, and Temperature Setting is 150 DEG C, until batten termination test while there is efflorescence carries out testing after status adjustment 24h under RT condition.
Newly fill a prescription (product that embodiment 1 obtains) and the performance test of analogous material abroad by Jinzhou, result shows: the performance in each stage of the trial target of new formula is all better than external equivalent material.
Table 2
；
3. the Jinzhou flame retardant properties testing experiment of newly filling a prescription:
Table 3
。
Embodiment 2
By 3.0 parts of maleic anhydride inoculated polypropylenes, 10 parts of fire retardant JLS-PNP series, 10 parts of fire retardant phosphoric acid ester, 0.5 part of antioxidant 1010, 0.5 part of antioxidant 1076, 1,330 0.5 parts, oxidation inhibitor, 0.5 part of irgasfos 168, 0.5 part of oxidation inhibitor DSTDP, 0.5 part of plasticizer phthalic acid dibutylester, 0.5 part of softening agent epoxyoleic acid butyl ester, 0.5 part of processing aid polyethylene wax, 1 part of 0.5 part of processing aid oxidized polyethlene wax and processing aid Palmiticacid join in high mixer successively, fully mix after 1min, then by 60 parts of mixture and Co-polypropylene and/or homo-polypropylene from main spout charging, simultaneously again by 10 parts of short glass fibers of handling well from the charging of side spout, in forcing machine, melt blending is extruded jointly, tie rod pelletizing.Cross water cooling, dry up the moisture on material strip surface, then pelletizing.Its melt temperature is set as follows: 180 DEG C of first paragraphs, 180 DEG C of second segments, the 3rd section 190 DEG C, the 4th section 200 DEG C, the 5th section 210 DEG C, the 6th section 200 DEG C, the 7th section 200 DEG C, the 8th section 210 DEG C, the 9th section 210 DEG C, the tenth section 215 DEG C, 215 DEG C of head temperatures.
In the present embodiment, Co-polypropylene is the Co-polypropylene that the melting index under 230 DEG C, 2.16KG test condition is 10～80g/10min, is preferably the Co-polypropylene that melting index is 30～50g/10min; Described homo-polypropylene is the homo-polypropylene that the melting index under 230 DEG C, 2.16KG test condition is 5～50g/10min, is preferably the homo-polypropylene that melting index is 20～30g/10min.
To the material of the present invention obtaining by embodiment 2, by material being carried out to initial stage basic physical properties confirmation, heat oxygen aging resistance experimental verification, by the evaluation comparison of following experiment, confirm the performance (material of the present invention is newly filled a prescription hereinafter referred to as Jinzhou) of material of the present invention:
1. the initial stage basic physical properties comparison with external equivalent material by embodiment 2, table 4 result shows: the initial performance of the material that embodiment 2 obtains is better than external equivalent material.
Table 4
；
2. thermooxidizing test: test conditions: 150 DEG C;
Test batten is put into the thermo-oxidative ageing case of air inerchange, and Temperature Setting is 150 DEG C, until batten termination test while there is efflorescence carries out testing after status adjustment 24h under RT condition.
Newly fill a prescription (product that embodiment 2 obtains) and the performance test of analogous material abroad by Jinzhou, result shows: the performance in each stage of the trial target of new formula is all better than external equivalent material.
Table 5
；
3. the Jinzhou flame retardant properties testing experiment of newly filling a prescription:
Table 6
。
Embodiment 3
By 0.5 part of 10 parts of the polypropylene of glycidyl acrylate grafting, 40 parts of fire retardant Melamine Polyphosphate, 0.5 part of antioxidant 1010,0.5 part of softening agent epoxyoleic acid butyl ester and processing aid Indonesia stearic acid, join successively in high mixer, fully mix after 10min, then by mixture and Co-polypropylene and/or homo-polypropylene, 40 parts from main spout charging, simultaneously again by 30 parts of short glass fibers of handling well from the charging of side spout, in forcing machine, melt blending is extruded jointly, tie rod pelletizing.Its melt temperature is set as follows: 200 DEG C of first paragraphs, 210 DEG C of second segments, the 3rd section 210 DEG C, the 4th section 220 DEG C, the 5th section 220 DEG C, the 6th section 210 DEG C, the 7th section 210 DEG C, the 8th section 230 DEG C, the 9th section 230 DEG C, the tenth section 225 DEG C, 225 DEG C of head temperatures.
In the present embodiment, Co-polypropylene is the Co-polypropylene that the melting index under 230 DEG C, 2.16KG test condition is 10～80g/10min, is preferably the Co-polypropylene that melting index is 30～50g/10min; Described homo-polypropylene is the homo-polypropylene that the melting index under 230 DEG C, 2.16KG test condition is 5～50g/10min, is preferably the homo-polypropylene that melting index is 20～30g/10min.
The polypropylene material that embodiment 3 obtains with implement 1 and 2 to carry out identical experiment, the indices in its mechanical property is all higher than external equivalent material more than 10%, and can reach V0 level flame retardant properties.
Embodiment 4
By 20 parts of the polypropylene of glycidyl acrylate grafting, fire retardant (comprises 5 parts of Melamine Polyphosphate, 5 parts of 5 parts of halogen-free environment-friendly flame-proof agent JLS-PNP series and phosphoric acid ester) 15 parts, 1.0 parts of antioxidant 1010s, 1.0 parts of antioxidant 1076s, 1.0 parts of irgasfos 168s, 1.0 parts of oxidation inhibitor DSTDP, softening agent (comprises 0.5 part of diisobutyl phthalate, 0.5 part of dibutyl phthalate, 0.5 part of 0.5 part of diisobutyl phthalate and epoxyoleic acid butyl ester) 2 parts and processing aid (comprise N, 0.5 part of N '-ethylene bis stearamide, 0.5 part of polyethylene wax, 0.5 part of oxidized polyethlene wax, 1 part of 0.5 part of Indonesia's stearic acid and Palmiticacid) 3 parts, join successively in high mixer, fully mix after 8min, then by 90 parts of mixture and Co-polypropylene and/or homo-polypropylene from main spout charging, simultaneously again by 25 parts of short glass fibers of handling well from the charging of side spout, in forcing machine, melt blending is extruded jointly, tie rod pelletizing.Its melt temperature is set as follows: 200 DEG C of first paragraphs, 210 DEG C of second segments, the 3rd section 210 DEG C, the 4th section 220 DEG C, the 5th section 220 DEG C, the 6th section 210 DEG C, the 7th section 210 DEG C, the 8th section 230 DEG C, the 9th section 230 DEG C, the tenth section 225 DEG C, 225 DEG C of head temperatures.
In the present embodiment, Co-polypropylene is the Co-polypropylene that the melting index under 230 DEG C, 2.16KG test condition is 10～80g/10min, is preferably the Co-polypropylene that melting index is 30～50g/10min; Described homo-polypropylene is the homo-polypropylene that the melting index under 230 DEG C, 2.16KG test condition is 5～50g/10min, is preferably the homo-polypropylene that melting index is 20～30g/10min.
The polypropylene material that embodiment 4 obtains with implement 1 and 2 to carry out identical experiment, the indices in its mechanical property is all higher than external equivalent material more than 10%, and can reach V0 level flame retardant properties.
Claims (4)
1. high-heat-resisting glass-fiber strengthens a production method for halogen-free polypropylene flame redardant, it is characterized in that processing step is as follows:
By 5.0 parts of maleic anhydride inoculated polypropylenes, 30 parts of fire retardant Melamine Polyphosphate, 1.0 parts of antioxidant 1010s, 1,330 1.0 parts, oxidation inhibitor, 1.0 parts of oxidation inhibitor DSTP, 1.0 parts of irgasfos 168s, 0.2 part of plasticizer phthalic acid diisobutyl ester and processing aid N, 4.0 parts of N '-ethylene bis stearamides, join successively in high mixer, fully mix after 5min, then by 50 parts of mixture and Co-polypropylene and/or homo-polypropylene from main spout charging, simultaneously again by 20 parts of short glass fibers of handling well from the charging of side spout, in forcing machine, melt blending is extruded jointly, tie rod pelletizing, its melt temperature is set as follows: 200 DEG C of first paragraphs, 210 DEG C of second segments, the 3rd section 210 DEG C, the 4th section 220 DEG C, the 5th section 220 DEG C, the 6th section 210 DEG C, the 7th section 210 DEG C, the 8th section 230 DEG C, the 9th section 230 DEG C, the tenth section 225 DEG C, 225 DEG C of head temperatures.
2. high-heat-resisting glass-fiber strengthens a production method for halogen-free polypropylene flame redardant, it is characterized in that processing step is as follows:
By 3.0 parts of maleic anhydride inoculated polypropylenes, 10 parts of fire retardant JLS-PNP series, 10 parts of fire retardant phosphoric acid ester, 0.5 part of antioxidant 1010, 0.5 part of antioxidant 1076, 1,330 0.5 parts, oxidation inhibitor, 0.5 part of irgasfos 168, 0.5 part of oxidation inhibitor DSTDP, 0.5 part of plasticizer phthalic acid dibutylester, 0.5 part of softening agent epoxyoleic acid butyl ester, 0.5 part of processing aid polyethylene wax, 1 part of 0.5 part of processing aid oxidized polyethlene wax and processing aid Palmiticacid join in high mixer successively, fully mix after 1min, then by 60 parts of mixture and Co-polypropylene and/or homo-polypropylene from main spout charging, simultaneously again by 10 parts of short glass fibers of handling well from the charging of side spout, in forcing machine, melt blending is extruded jointly, tie rod pelletizing, crosses water cooling, dries up the moisture on material strip surface, then pelletizing, its melt temperature is set as follows: 180 DEG C of first paragraphs, 180 DEG C of second segments, the 3rd section 190 DEG C, the 4th section 200 DEG C, the 5th section 210 DEG C, the 6th section 200 DEG C, the 7th section 200 DEG C, the 8th section 210 DEG C, the 9th section 210 DEG C, the tenth section 215 DEG C, 215 DEG C of head temperatures.
3. high-heat-resisting glass-fiber strengthens a production method for halogen-free polypropylene flame redardant, it is characterized in that processing step is as follows:
By 10 parts of the polypropylene of glycidyl acrylate grafting, 40 parts of fire retardant Melamine Polyphosphate, 0.5 part of antioxidant 1010, 0.5 part of 0.5 part of softening agent epoxyoleic acid butyl ester and processing aid Indonesia stearic acid, join successively in high mixer, fully mix after 10min, then by mixture and Co-polypropylene and/or homo-polypropylene, 40 parts from main spout charging, simultaneously again by 30 parts of short glass fibers of handling well from the charging of side spout, in forcing machine, melt blending is extruded jointly, tie rod pelletizing, its melt temperature is set as follows: 200 DEG C of first paragraphs, 210 DEG C of second segments, the 3rd section 210 DEG C, the 4th section 220 DEG C, the 5th section 220 DEG C, the 6th section 210 DEG C, the 7th section 210 DEG C, the 8th section 230 DEG C, the 9th section 230 DEG C, the tenth section 225 DEG C, 225 DEG C of head temperatures.
4. high-heat-resisting glass-fiber strengthens a production method for halogen-free polypropylene flame redardant, it is characterized in that processing step is as follows:
By 20 parts of the polypropylene of glycidyl acrylate grafting, 5 parts of Melamine Polyphosphate, 5 parts of halogen-free environment-friendly flame-proof agent JLS-PNP series, 5 parts of phosphoric acid ester, 1.0 parts of antioxidant 1010s, 1.0 parts of antioxidant 1076s, 1.0 parts of irgasfos 168s, 1.0 parts of oxidation inhibitor DSTDP, 0.5 part of diisobutyl phthalate, 0.5 part of dibutyl phthalate, 0.5 part of diisobutyl phthalate, 0.5 part of epoxyoleic acid butyl ester, N, 0.5 part of N '-ethylene bis stearamide, 0.5 part of polyethylene wax, 0.5 part of oxidized polyethlene wax, 1 part of 0.5 part of Indonesia's stearic acid and Palmiticacid, join successively in high mixer, fully mix after 8min, then by 90 parts of mixture and Co-polypropylene and/or homo-polypropylene from main spout charging, simultaneously again by 25 parts of short glass fibers of handling well from the charging of side spout, in forcing machine, melt blending is extruded jointly, tie rod pelletizing, its melt temperature is set as follows: 200 DEG C of first paragraphs, 210 DEG C of second segments, the 3rd section 210 DEG C, the 4th section 220 DEG C, the 5th section 220 DEG C, the 6th section 210 DEG C, the 7th section 210 DEG C, the 8th section 230 DEG C, the 9th section 230 DEG C, the tenth section 225 DEG C, 225 DEG C of head temperatures.
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| CN103030876B (en) * | 2012-12-24 | 2016-05-18 | 江苏金发科技新材料有限公司 | Low gloss damage resistant glass strengthens PP composite and preparation method thereof |
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