CN104072970A - High-heat-resistance flame-retardant PC alloy material and preparation method thereof - Google Patents
High-heat-resistance flame-retardant PC alloy material and preparation method thereof Download PDFInfo
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- CN104072970A CN104072970A CN201410337171.3A CN201410337171A CN104072970A CN 104072970 A CN104072970 A CN 104072970A CN 201410337171 A CN201410337171 A CN 201410337171A CN 104072970 A CN104072970 A CN 104072970A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
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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
- B29C48/25—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
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92561—Time, e.g. start, termination, duration or interruption
-
- 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
-
- 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 relates to a high-heat-resistance flame-retardant PC alloy material. The high-heat-resistance flame-retardant PC alloy material is characterized by comprising the following components by weight percent: 55-70 percent of PC resin, 18-25 percent of ACS resin, 10-20 percent of phenethylene-acrylonitrile-N-Phenylmaleimide-cyclopentene copolymer, 0.5-1.5 percent of a lubricant and 0.6-1.0 percent of an anti-oxidant. Compared with the prior art, the high-heat-resistance flame-retardant PC alloy material adopts PC resin and ACS resin as basic resin, innovatively adopts SAN resin containing N-Phenylmaleimide group as synergetic flame-retardant resin to provide a nitrogen source, gives the chlorine-nitrogen synergetic flame-retardant effect into full play, and overcomes the shortcomings that traditional PC resin has relatively poor heat resistance and mechanical property under the premise of not adding any special flame retardants.
Description
Technical field
The invention belongs to modified-high polymer field, be specifically related to a kind of high-temp resistant fire-retarding PC alloy material, and the preparation method of this PC alloy material.
Background technology
Polycarbonate (hereinafter to be referred as PC), when having outstanding impelling strength and the good transparency, dimensional stability and comprehensive mechanical property, also has use temperature wide ranges, resistance to creep, the good characteristics such as weather-proof, nontoxic.Acrylonitrile-butadiene-styrene copolymer (hereinafter to be referred as ABS) is that a kind of intensity is high, good toughness, be easy to thermoplastics type's Polymer Materials ' Structure of machine-shaping.PC/ABS combines the excellent properties of PC and ABS, be applied in now every field, but due to the loss of properties on aging of ABS material self, do not there is flame retardant resistance, application aspect fire-retardant need to be added a large amount of fire retardants and reach flame retardant effect, has increased complicacy and the cost of materials processing.Current modal fire retardation PC/ABS is that halogen is fire retardation PC/ABS and phosphorus series non-halogen fire retardation PC/ABS.But halogenated flame retardant add the mechanical property that membership reduces material greatly, and can produce to be fuming during burning and sharply increase, corrosion processing equipment; Next is phosphorus flame retardant, and this fire retardant can reduce mechanical property and the thermal characteristics of PC.Because general phosphorus fire retardant high-temperature stability is very poor, under normal temperature, be liquid, add inconvenience and also easily separate out material surface.
ACS resin is acrylonitrile, chlorinatedpolyethylene, cinnamic terpolymer.ACS resin adopts saturated CPE rubber to substitute the undersaturated polybutadiene rubber in ABS resin, although similar to ABS aspect physical properties, at aspects such as flame retardant properties, weathering resistance, anti-dust electrostatic deposition and thermal metamorphisms, be better than ABS.To dust, electrostatic precipitation has intrinsic resistibility to ACS, and it is that all shells are the highest by fire retardancy in moulding material.By the comprehensive premium properties of the two of PC and ACS resin alloy, in performance, form complementaryly, it had both had thermotolerance, dimensional stability and the mechanical property of PC, had again the advantages such as good processing fluidity, flame retardant resistance.
As the publication No. Chinese patent application < < high flame retardant polycarbonate alloy material that is CN103497497A and preparation method thereof > > discloses the PC alloy material that is added with ACS, ACS is added on the flame retardant properties that has improved to a certain extent this material, but owing to adding quantitative limitation, and the fire retardancy of single flame retardance element is limited, the fire-retardant performance of this material is also also unsatisfactory, especially after having added the ACS of 20% weight percent, the flame retardant rating of material is still UL94V-2 grade.
Styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes multipolymer is a kind of high heat resistance modified additive, consistency, the Heat stability is good of it and various resins, and nontoxic.In PC-ACS matrix resin, add this material, can improve on the one hand the resistance toheat of resin, can improve on the one hand the flame retardant resistance of resin.Chlorine element and the carboxyl in PC that it produces in nitrogen element and ACS when material combustion can form fire-retardant synergy, thereby reduce the use of fire retardant, have both reduced cost, have kept again the good mechanical properties of PC alloy resin.
Summary of the invention
For deficiency of the prior art, the invention provides a kind of high-temp resistant fire-retarding PC alloy material, solved traditional fire retardation PC resin resistance toheat, the poor shortcoming of mechanical property, the present invention provides the preparation method of this PC alloy material simultaneously.
The present invention is achieved through the following technical solutions:
A high-temp resistant fire-retarding PC alloy material, is characterized in that comprising the component of following weight per-cent:
As preferably, described PC resin is bisphenol A-type PC resin, middle low viscosity, and melt flow rate (MFR) is 15-20g/10min (300 ℃/1.2kg);
The melt flow rate (MFR) of described ACS resin is 18-25g/10min (220 ℃/10kg), described ACS resin adopts mass polymerization preparation, before process for devolatilization, added rare earth calcium zinc composite thermal stabilizer and carried out thermostabilization processing, chlorinated polyethylene rubber content is 15～25%;
The weight-average molecular weight of described styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes multipolymer is 22000-26000;
Described lubricant is pentaerythritol ester;
Described oxidation inhibitor is the compound of B215 and 412S.
As preferably, in described styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes multipolymer, N-phenylmaleimide weight percent content is 20～25%, and cyclopentenes weight percent content is 10～15%.
As preferably, described styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes Copolymer Melts flow rate is 20-30g/10min.
A preparation method for high-temp resistant fire-retarding PC alloy, is characterized in that, comprises the steps:
(1) PC, ACS, styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes multipolymer drying and processing in advance;
(2) get PC, ACS, styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes multipolymer, lubricant and oxidation inhibitor, mix;
(3) raw material of mixing is put into forcing machine extruding pelletization;
(4), through tie rod, cooling, pelletizing, finally obtains finished product.
As preferably, in described step (1) PC, ACS, styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes multipolymer in advance after drying and processing three's moisture content below 0.02%.
As preferably, in described step (2), raw material and auxiliary agent are put into high mixer mixes and discharging, rotating speed is that 1000rpm mixing time is 5-10 minute.
As preferably, in described step (3), described forcing machine is parallel dual-screw extruding machine, the length-to-diameter ratio of the screw rod of described twin screw extruder is 36, the rotating speed of screw machine is 150-300rpm, between each section of extruder temperature controlled and is 160-245 ℃, and residence time 1-2 minute.
As preferably, in described twin screw extruder, feeding section temperature is 160-190 ℃, and melt zone temperature is 200-240 ℃, and homogenizing zone temperature is 235-245 ℃, and head temperature is 235-245 ℃
Compared with prior art, the present invention has following beneficial effect:
The present invention adopts PC, ACS resin as matrix resin, adopt styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes multipolymer as functional heat-proof modifier, make a kind of high-temp resistant fire-retarding PC alloy, retaining on the basis of the original good mechanical property of PC resin, avoiding adopting traditional phosphoric acid ester halogen-free flame retardants to cause the defect that plasticization effect causes product resistance toheat to decline to a great extent.
Utilize the nitrogen element of styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes multipolymer and the chlorine element in ACS resin, the cooperative flame retardant effect between the carboxyl in PC resin, guaranteeing additionally not add under the condition of fire retardant, product flame retardant rating can reach V-0 level, simplified formula and the technique that is mixed, further reduced production costs.
High-temp resistant fire-retarding PC composition provided by the present invention adopts the styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes multipolymer (hereinafter to be referred as SAN resin) of stating containing N-phenylmaleimide group to provide source of the gas as synergistic flame-retarded resin, given full play to chloro-phosphorus-nitrogen coordinated fire-retardant effect, slow down flame transmission speed, improve the flame retardant properties of PC material.The composite use of oxidation inhibitor B900 and 412S, can effectively suppress high temperature xanthochromia.Gained heat-resistant fireproof PC composition flame retardant properties is good, and heat-drawn wire is high, and comprehensive mechanical property is good, and cost is moderate.Product can be widely used in the fields such as electronics, electrical equipment, communication, instrument, illumination.
Embodiment
Below in conjunction with embodiment, the present invention is described further.
PC-1 selects the PC115 (melt flow rate (MFR)=15g/10min) of Taiwan Qi Mei company.
PC-2 selects 2405 (melt flow rate (MFR)=20g/10min) of Bayer A.G.
The general purpose grade ACS that ACS-1 selects Ningbo Oceanking Chemical Development Co., Ltd. to produce, chlorinated polyethylene rubber content is 15%, melt flow rate (MFR) is 25g/10min.
The general purpose grade ACS that ACS-2 selects Ningbo Oceanking Chemical Development Co., Ltd. to produce, chlorinated polyethylene rubber content is 25%, melt flow rate (MFR) is 18g/10min.
Styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes multipolymer that SAN-1 selects Ningbo Oceanking Chemical Development Co., Ltd. to produce, weight-average molecular weight is about 22000g/mol, N-phenylmaleimide content is 25%, and cyclopentenes content is 15%, melt flow rate (MFR)=30g/10min.
Styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes multipolymer that SAN-2 selects Ningbo Oceanking Chemical Development Co., Ltd. to produce, weight-average molecular weight is about 26000g/mol, N-phenylmaleimide content is 20%, and cyclopentenes content is 10%, melt flow rate (MFR)=20g/10min.
SAN-3 is selected from the 80HF of LG, melt flow rate (MFR)=24g/10min.
Lubricant is selected the husky PETS of U.S. dragon.
Oxidation inhibitor is selected B215, the 412S of Tianjin Li Anlong.
The formula of embodiment 1-8 and comparative example 1-4 is in Table 1.
Table 1 formula
In upper table, the preparation method of embodiment 1-4 follows these steps to carry out:
1,120 ℃ of dry 6h of PC resin, ACS resin and styrene-acrylonitrile-N-phenylmaleimide-dry 4h of 80 ℃ of cyclopentenes multipolymers;
2, take by weight ratio PC, ACS, styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes multipolymer, oxidation inhibitor and lubricant; Above-mentioned raw materials and auxiliary agent are put into high mixer with the discharging in 10 minutes of 1000rpm high-speed mixing;
3, the raw material of mixing is put into parallel dual-screw extruding machine extruding pelletization.The length-to-diameter ratio of twin screw extruder used is 36, and the rotating speed of screw machine is 150rpm, and between each section of extruder temperature controlled and be 160-235 ℃, 2 minutes residence time, wherein feeding section is 160 ℃, and melt zone is 200 ℃, and homogenizing zone is 235 ℃, and head is 235 ℃.
4,, through tie rod, cooling, pelletizing, finally obtains finished product.
In upper table, the preparation method of embodiment 5-8 follows these steps to carry out:
1,120 ℃ of dry 6h of PC resin, ACS resin and styrene-acrylonitrile-N-phenylmaleimide-dry 4h of 80 ℃ of cyclopentenes multipolymers;
2, take by weight ratio PC, ACS, styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes multipolymer, oxidation inhibitor and lubricant; Above-mentioned raw materials and auxiliary agent are put into high mixer with the discharging in 10 minutes of 1000rpm high-speed mixing;
3, the raw material of mixing is put into parallel dual-screw extruding machine extruding pelletization.The length-to-diameter ratio of twin screw extruder used is 36, and the rotating speed of screw machine is 300rpm, and between each section of extruder temperature controlled and be 190-245 ℃, 1 minute residence time, wherein feeding section is 190 ℃, and melt zone is 240 ℃, and homogenizing zone is 245 ℃, and head is 245 ℃
4,, through tie rod, cooling, pelletizing, finally obtains finished product.
In upper table, the preparation of comparative example is with reference to above step.
Halogen-free flame retardant PC composition prepared by each embodiment and comparative example is injection molded into standard batten by standard size and carries out various performance tests, and testing method is as shown in table 2, and test result is as shown in table 3.
Table 2 performance test methods
| Performance | Testing method | Condition |
| Izod notched Izod impact strength | ISO180 | 3.2mm，23℃ |
| Tensile strength | ISO527 | 3.2mm，50mm/min |
| Flexural strength | ISO178 | 3.2mm，2mm/min |
| Heat-drawn wire | ISO75 | 6.4mm，1.82MPa |
| Flame retardant rating | UL-94 | 3.2mm |
| Oxygen index | GB/T2406 | ? |
Table 3 the performance test results
As can be seen from Table 3: add common SAN very little to the raising of the flame retardant properties of PC/ACS alloy, can only reach V-1 level, oxygen index 23%, heat-drawn wire is lower; And add styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes multipolymer as heat-resisting additive, can effectively improve the heat-drawn wire of PC/ACS resin alloy.By the multipolymer of SAN and N-phenylmaleimide-cyclopentenes and the blend of PC/ACS alloy, can improve the resistance toheat of PC/ACS alloy on the one hand, on the one hand can synergistic flame-retarded resin, source nitrogen is provided when material combustion, form chloro-phosphorus-nitrogen coordinated fire-retardant effect with the chlorine element in ACS, do not adding under the prerequisite of combustion inhibitor special, making the flame retardant rating of PC alloy material reach V-0 level, oxygen index is brought up to more than 30%.Owing to there is no to add in addition special-purpose fire retardant, the mechanical property of material has obtained good maintenance, and has simplified formula and the technique that is mixed, and further reduces production costs.
Claims (9)
1. a high-temp resistant fire-retarding PC alloy material, is characterized in that comprising the component of following weight per-cent:
2. a kind of high-temp resistant fire-retarding PC alloy material according to claim 1, is characterized in that, described PC resin is bisphenol A-type PC resin, and melt flow rate (MFR) is 15-20g/10min;
The melt flow rate (MFR) of described ACS resin is 18-25g/10min;
The weight-average molecular weight of described styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes multipolymer is 22000-26000;
Described lubricant is pentaerythritol ester;
Described oxidation inhibitor is the compound of B215 and 412S.
3. a kind of high-temp resistant fire-retarding PC alloy material according to claim 2, it is characterized in that, in described styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes multipolymer, N-phenylmaleimide weight percent content is 20～25%, and cyclopentenes weight percent content is 10～15%.
4. a kind of high-temp resistant fire-retarding PC alloy material according to claim 3, is characterized in that, described styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes Copolymer Melts flow rate is 20-30g/10min.
5. the preparation method of a kind of high-temp resistant fire-retarding PC alloy described in the claims any one, is characterized in that, comprises the steps:
(1) PC, ACS, styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes multipolymer drying and processing in advance;
(2) get PC, ACS, styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes multipolymer, lubricant and oxidation inhibitor, mix;
(3) raw material of mixing is put into forcing machine extruding pelletization;
(4), through tie rod, cooling, pelletizing, finally obtains finished product.
6. a kind of high-temp resistant fire-retarding PC alloy material according to claim 5, it is characterized in that, in described step (1) PC, ACS, styrene-acrylonitrile-N-phenylmaleimide-cyclopentenes multipolymer in advance after drying and processing three's moisture content below 0.02%.
7. a kind of high-temp resistant fire-retarding PC alloy material according to claim 5, is characterized in that, in described step (2), raw material and auxiliary agent is put into high mixer mixes and discharging, and rotating speed is that 1000rpm mixing time is 5-10 minute.
8. a kind of high-temp resistant fire-retarding PC alloy material according to claim 5, it is characterized in that, in described step (3), described forcing machine is parallel dual-screw extruding machine, the length-to-diameter ratio of the screw rod of described twin screw extruder is 36, the rotating speed of screw machine is 150-300rpm, between each section of extruder temperature controlled and is 160-245 ℃, and residence time 1-2 minute.
9. a kind of high-temp resistant fire-retarding PC alloy material according to claim 8, it is characterized in that, in described twin screw extruder, feeding section temperature is 160-190 ℃, and melt zone temperature is 200-240 ℃, homogenizing zone temperature is 235-245 ℃, and head temperature is 235-245 ℃.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382228A (en) * | 2011-09-02 | 2012-03-21 | 宁波镇洋化工发展有限公司 | SAN (styrene-acrylonitrile copolymer) preparation method |
| CN102702660A (en) * | 2012-05-30 | 2012-10-03 | 宁波镇洋化工发展有限公司 | Halogen-free and flame retardant ACS (Acrylonitrile-Chlorinated polyethylene-Styrene)/PC (Poly Carbonate) alloy |
| CN102702639A (en) * | 2012-05-30 | 2012-10-03 | 宁波镇洋化工发展有限公司 | Glass fiber reinforced styrene-acrylonitrile-N-phenylmaleimide-cyclic olefin copolymer compound |
| CN103351588A (en) * | 2013-05-30 | 2013-10-16 | 宁波镇洋化工发展有限公司 | Phosphorus-silicon compounded flame-retardant PC resin |
| CN103497497A (en) * | 2013-09-22 | 2014-01-08 | 安徽科聚新材料有限公司 | High flame retardance polycarbonate (PC) alloy material and preparation method thereof |
-
2014
- 2014-07-15 CN CN201410337171.3A patent/CN104072970B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382228A (en) * | 2011-09-02 | 2012-03-21 | 宁波镇洋化工发展有限公司 | SAN (styrene-acrylonitrile copolymer) preparation method |
| CN102702660A (en) * | 2012-05-30 | 2012-10-03 | 宁波镇洋化工发展有限公司 | Halogen-free and flame retardant ACS (Acrylonitrile-Chlorinated polyethylene-Styrene)/PC (Poly Carbonate) alloy |
| CN102702639A (en) * | 2012-05-30 | 2012-10-03 | 宁波镇洋化工发展有限公司 | Glass fiber reinforced styrene-acrylonitrile-N-phenylmaleimide-cyclic olefin copolymer compound |
| CN103351588A (en) * | 2013-05-30 | 2013-10-16 | 宁波镇洋化工发展有限公司 | Phosphorus-silicon compounded flame-retardant PC resin |
| CN103497497A (en) * | 2013-09-22 | 2014-01-08 | 安徽科聚新材料有限公司 | High flame retardance polycarbonate (PC) alloy material and preparation method thereof |
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| CN104072970B (en) | 2015-10-07 |
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