CN105504739A - Halogen-free flame-retardant ABS/PC alloy resin and preparation method thereof - Google Patents
Halogen-free flame-retardant ABS/PC alloy resin and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a halogen-free flame-retardant ABS/PC alloy resin, which is prepared from the following raw materials by weight: 60-85 parts of polycarbonate, 15-40 parts of an acrylonitrile-styrene-butadiene copolymer, 1-10 parts of a LLDPE grafted maleic anhydride resin, 5-25 parts of a flame-retardant agent, 0.1-1.0 part of an antioxidant, 0.1-0.8 part of a lubricant, and 0.1-2.5 parts of other aids. Compared with the resin in the prior art, the resin of the present invention has characteristics of low cost, reasonable ratio, scientificity, practicality and the like, further has advantages of effective tensile property improving, effective flexural property improving, effective impact performance improving, material processability improving, jet efflux improving, melt strength increasing, product internal stress reducing, heat resistance improving, material cost reducing, polycarbonate melt viscosity reducing, polycarbonate processability improving, and reduction of the sensitivity of the product internal stress and the product impact strength on the product thickness, and is suitable for injection molding. In addition, the used flame-retardant agent has characteristics of no halogen, low toxicity, and environmental protection.
Description
Technical field
The present invention relates to technical field of polymer materials, particularly a kind of halogen-free flame retardant ABS/PC alloy resin and preparation method thereof.
Background technology
PC transparency is good, and thermotolerance is high, good light stability, good stability of the dimension, be the best engineering plastics of toughness, but it is to notch sensitive, and product internal stress is large, and melt viscosity is high, poor fluidity, difficult forming, greatly limit its application.By these shortcomings can be overcome with the alloying of other plastics, thus expand its range of application.ABS resin is a kind of interchangeable heat plastic resin with excellent impact resistance and good moulding processability, and it has higher performance/cost ratio, be easy to plating, mechanical workout, good stability of the dimension, but its thermotolerance and weathering resistance poor.
The ABS resin normally vinyl cyanide of polyhutadiene, phenylethene grafted copolymer and styrene-acrylonitrile is dissociated the mixture of multipolymer (SAN).Wherein vinyl cyanide, phenylethene grafted copolymer are grafted on polybutadiene rubber, provide the compatibilized interface of polybutadiene rubber and SAN interlaminar resin, define stable two phase structure.
On microcosmic, grafted polybutadiene is mutually in disperse phase, and san copolymer is mutually in external phase.Microcosmic (or submicroscopic) phase separation structure that this large small scale is suitable, two-phase advantage separately can be given full play to, over-all properties is very excellent, have that intensity is high, good toughness, be easy to the features such as machine-shaping, thus at present ABS resin has become one of most widely used macromolecular material, and at automobile, electrically, weaving, the field such as chemical industry and general merchandise be obtained for and apply widely.
Particularly in recent years, China's ABS resin consumption market center of gravity progressively carries out strategic shift to industries such as automobile, electronics, building materials, medicine equipments.In addition the difference of application scenario, condition, environment, also all proposes higher requirement to the physicals, chemical property, processing characteristics, product cost etc. of material.Along with the continuous expansion of ABS resin range of application, its thermotolerance, weathering resistance are poor, and mechanical property and the flame retardant properties also shortcoming such as not ideal enough also highlight day by day.Thus the focus that high performance modified ABS resin has become people's concern is developed.
Polymer blending be realize macromolecular material high performance, become more meticulous, the important channel of functionalization and Developing New Variety.Countries in the world expand large quantifier elimination for polyblend in recent decades.ABS resin alloy has also developed into tens present kinds from initial two kind ABS/PVC and ABS/PC.Above a few joint content in this book just relevant discussion has been carried out to the flame-retarded technology of ABS resin, alloying process, Functionalization and compounding technology.By these modifications, make ABS resin achieve high performance, functionalization, customizations, its alloy have also been obtained in fields such as automobile, electronics, precision instrument, office equipment, wrapping material, material of construction and applies widely.
But be not any two kinds of plastics intermingling materials that can be had use value by blended formation.Molecular level mutual tolerance can be reached after two kinds of completely compatible polymkeric substance are mixing, thus form phase structure, as PS/PPO etc.The performance of this blend has the comprehensive effect of two kinds of polymer performances additions, but seldom has innovation, and do not have the improvement in performance broken through, industrial application is limited; After completely inconsistent two kinds of polymer blendings, in system, each component of polymer is agglomerated together independently, and its contact interface is very little, and as PA/ABS etc., performance, the particularly physical and mechanical properties of this blend each side are very poor, also do not have industrial application value; And between compatible and incompatible be half compatible state.
The blend being main raw material with PC and ABS resin is a kind of important engineering plastic alloy, this material has good shaping flowing property, can be used for the goods of shaping big area and complexity, there is good low-temperature impact-resistant performance, higher heat-drawn wire and good light stability.But there is the shortcoming of poor compatibility in the simple blend of PC/ABS.Relatively, PC is 9.8 (cal/cm to SAN solubility parameter in PC and ABS
3)
0.5, SAN is 9.3-9.6 (cal/cm
3)
0.5the consistency of SAN and PC is better, but, polyhutadiene in PC and ABS is difficult to compatible, can cause weak connection, physicals is declined between them, although its two-phase is not exclusively compatible, but control phase structure by various ways in mixing process, reach finely divided, this have the blend polymer that better consistency exists again microcosmic (or submicroscopic) phase separation structure and then can obtain unique composite attribute.In this finely divided system, often kind of polymkeric substance still carries intrinsic function, plays respective characteristic, and its over-all properties again more each component property is significantly increased, therefore the blend polymer attention of this non-homogeneous phase, becomes the main flow of development blend polymer.
Summary of the invention
One is the object of the present invention is to provide to overcome the deficiencies in the prior art, halogen-free flame retardant ABS/PC alloy resin with good mechanical property and processing characteristics and preparation method thereof.
For achieving the above object, the present invention realizes by the following technical solutions:
A kind of halogen-free flame retardant ABS/PC alloy resin, is formed by the proportioning raw materials of following parts by weight: polycarbonate 60 ~ 85 parts, acrylonitrile-butadiene-styrene copolymer 15 ~ 40 parts, LLDPE grafted maleic anhydride resin 1 ~ 10 part, fire retardant 5 ~ 25 parts, 0.1 ~ 1.0 part, oxidation inhibitor, lubricant 0.1 ~ 0.8 part and other auxiliary agent 0.1 ~ 2.5 part.
Described acrylonitrile-butadiene-styrene copolymer is formed by the proportioning raw materials of following parts by weight: styrene content 30 ~ 65 parts, acrylonitrile content 20 ~ 35 parts, butadiene content 10 ~ 50 parts, ABS acrylonitrile-butadiene-styrene copolymer is letex polymerization or mass polymerization.
Described fire retardant is one or more in Resorcinol two banks fat or red phosphorus.
Described oxidation inhibitor is that four [β-(3,5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester and (2,4-di-tert-butyl-phenyl) tris phosphite are joined and mixed.
Described lubricant is ethylene bis stearamide.
Other described auxiliary agent is that processing aid, releasing agent, photostabilizer, toughner or tinting material are wherein a kind of.
A kind of preparation method of halogen-free flame retardant ABS/PC alloy resin, completes according to the following steps:
(1) raw material is taken by weight ratio;
(2) LLDPE grafted maleic anhydride resin is first prepared: enter twin screw extruder by after acrylonitrile-butadiene-styrene copolymer, polyethylene, maleic anhydride, initiator, stearic acid Homogeneous phase mixing, complete processing is as follows: one district's temperature 150 ~ 175 DEG C from spout to die head, two district's temperature 155 ~ 175 DEG C, three district's temperature 165 ~ 170 DEG C, four district's temperature 165 ~ 170 DEG C, five district's temperature 155 ~ 165 DEG C; The residence time is 1 ~ 3 minute, and engine speed is 350 revs/min, and pressure is 10 ~ 16Mpa;
(3) twin screw extruder is entered by after polycarbonate, acrylonitrile-butadiene-styrene copolymer, LLDPE grafted maleic anhydride resin, oxidation inhibitor, lubricant and other auxiliary agent Homogeneous phase mixing, complete processing is as follows: one district's temperature 215 ~ 240 DEG C from spout to die head, two district's temperature 215 ~ 255 DEG C, three district's temperature 235 ~ 255 DEG C, four district's temperature 235 ~ 250 DEG C, five district's temperature 235 ~ 250 DEG C, six district's temperature 222 ~ 240 DEG C; The residence time is 1.5 ~ 2.5 minutes, engine speed 350 ~ 500 revs/min, and pressure is 10 ~ 16Mpa;
(4) cooling in cooling tower, drying is entered after extruding, cooling time is 5 ~ 15min, the ring mould of regulation is selected according to processing requirement, wherein Steam pressure control is between 3 ~ 7Pa, and temperature controls between 50 ~ 90 DEG C, should pay close attention to the change of pelleting temperature and pressure in compressed granulate process the moment, grasp inlet amount, its input speed is 2.5 ~ 3.5t/h, avoids nodulizer to operate at full capacity, and then pelletizing gets product;
(5) finished product put into packing scale and pack after weighing, before packaging, packing scale is calibrated, inspection by sampling is carried out to finished product simultaneously, and inspection finished appearance, packing should be stopped if any abnormal, then whether the check tag date is correct, whether Package and label is consistent, prevents finished product and label, outer packaging from not meeting the generation of event.
The product attribute of obtained alloy resin is as follows: IZOD shock strength 32kJ/m
2, tensile modulus 2850Mpa, tensile stress at break 48Mpa, heat-drawn wire 94 DEG C.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention has with low cost, reasonable ratio, method is easy, the features such as science is practical, effectively raise tensile property, bending property, and impact property, and improve Drawing abillity, improve jet flow, improve melt strength, reduce the internal stress of goods, improve thermotolerance, be suitable for injection molding, reduce the cost of material and the melt viscosity of polycarbonate simultaneously, improve the processing characteristics of polycarbonate, minimizing goods internal stress and goods shock strength are to the susceptibility of products thickness, the fire retardant that the present invention simultaneously uses has Halogen, low toxicity, environmental protection, good flame retardant effect is served to the present invention, there is the value extensively promoted.
Embodiment
Below the specific embodiment of the present invention is further illustrated:
Embodiment one
A kind of halogen-free flame retardant ABS/PC alloy resin, formed by the proportioning raw materials of following parts by weight: polycarbonate 60 parts, acrylonitrile-butadiene-styrene copolymer 15 parts, LLDPE grafted maleic anhydride resin 2 parts, fire retardant 5 parts, 0.2 part, oxidation inhibitor, lubricant 0.2 part and other auxiliary agent 0.2 part, described acrylonitrile-butadiene-styrene copolymer is formed by the proportioning raw materials of following parts by weight: styrene content 30 parts, acrylonitrile content 20 parts, butadiene content 10 parts, ABS acrylonitrile-butadiene-styrene copolymer is letex polymerization or mass polymerization.
Above-mentioned fire retardant is Resorcinol two banks fat.
Above-mentioned oxidation inhibitor is that four [β-(3,5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester and (2,4-di-tert-butyl-phenyl) tris phosphite mix according to the ratio of weight ratio 1:2.
Above-mentioned lubricant is ethylene bis stearamide.
Other above-mentioned auxiliary agent is that processing aid, releasing agent, photostabilizer, toughner or tinting material are wherein a kind of.
A kind of preparation method of halogen-free flame retardant ABS/PC alloy resin, completes according to the following steps:
(1) raw material is taken by weight ratio;
(2) LLDPE grafted maleic anhydride resin is first prepared: enter twin screw extruder by after acrylonitrile-butadiene-styrene copolymer, polyethylene, maleic anhydride, initiator, stearic acid Homogeneous phase mixing, complete processing is as follows: one district's temperature 150 ~ 175 DEG C from spout to die head, two district's temperature 155 ~ 175 DEG C, three district's temperature 165 ~ 170 DEG C, four district's temperature 165 ~ 170 DEG C, five district's temperature 155 ~ 165 DEG C; The residence time is 1 ~ 3 minute, and engine speed is 350 revs/min, and pressure is 10 ~ 16Mpa;
(3) twin screw extruder is entered by after polycarbonate, acrylonitrile-butadiene-styrene copolymer, LLDPE grafted maleic anhydride resin, oxidation inhibitor, lubricant and other auxiliary agent Homogeneous phase mixing, complete processing is as follows: one district's temperature 215 ~ 240 DEG C from spout to die head, two district's temperature 215 ~ 255 DEG C, three district's temperature 235 ~ 255 DEG C, four district's temperature 235 ~ 250 DEG C, five district's temperature 235 ~ 250 DEG C, six district's temperature 222 ~ 240 DEG C; The residence time is 1.5 ~ 2.5 minutes, engine speed 350 ~ 500 revs/min, and pressure is 10 ~ 16Mpa;
(4) cooling in cooling tower, drying is entered after extruding, cooling time is 5 ~ 15min, the ring mould of regulation is selected according to processing requirement, wherein Steam pressure control is between 3 ~ 7Pa, and temperature controls between 50 ~ 90 DEG C, should pay close attention to the change of pelleting temperature and pressure in compressed granulate process the moment, grasp inlet amount, its input speed is 2.5 ~ 3.5t/h, avoids nodulizer to operate at full capacity, and then pelletizing gets product;
(5) finished product put into packing scale and pack after weighing, before packaging, packing scale is calibrated, inspection by sampling is carried out to finished product simultaneously, and inspection finished appearance, packing should be stopped if any abnormal, then whether the check tag date is correct, whether Package and label is consistent, prevents finished product and label, outer packaging from not meeting the generation of event.
The product attribute of obtained alloy resin is as follows: IZOD shock strength 32kJ/m
2, tensile modulus 2850Mpa, tensile stress at break 48Mpa, heat-drawn wire 94 DEG C.
Embodiment two
A kind of halogen-free flame retardant ABS/PC alloy resin, formed by the proportioning raw materials of following parts by weight: polycarbonate 78 parts, acrylonitrile-butadiene-styrene copolymer 27 parts, LLDPE grafted maleic anhydride resin 5 parts, fire retardant 10 parts, 0.5 part, oxidation inhibitor, lubricant 0.5 part and other auxiliary agent 0.8 part, described acrylonitrile-butadiene-styrene copolymer is formed by the proportioning raw materials of following parts by weight: styrene content 40 parts, acrylonitrile content 23 parts, butadiene content 25 parts, ABS acrylonitrile-butadiene-styrene copolymer is letex polymerization or mass polymerization.
Above-mentioned fire retardant is red phosphorus.
Above-mentioned oxidation inhibitor is that four [β-(3,5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester and (2,4-di-tert-butyl-phenyl) tris phosphite mix according to the ratio of weight ratio 1:2.
Above-mentioned lubricant is ethylene bis stearamide.
Other above-mentioned auxiliary agent is that processing aid, releasing agent, photostabilizer, toughner or tinting material are wherein a kind of.
A kind of preparation method of halogen-free flame retardant ABS/PC alloy resin, completes according to the following steps:
(1) raw material is taken by weight ratio;
(2) LLDPE grafted maleic anhydride resin is first prepared: enter twin screw extruder by after acrylonitrile-butadiene-styrene copolymer, polyethylene, maleic anhydride, initiator, stearic acid Homogeneous phase mixing, complete processing is as follows: one district's temperature 150 ~ 175 DEG C from spout to die head, two district's temperature 155 ~ 175 DEG C, three district's temperature 165 ~ 170 DEG C, four district's temperature 165 ~ 170 DEG C, five district's temperature 155 ~ 165 DEG C; The residence time is 1 ~ 3 minute, and engine speed is 350 revs/min, and pressure is 10 ~ 16Mpa;
(3) twin screw extruder is entered by after polycarbonate, acrylonitrile-butadiene-styrene copolymer, LLDPE grafted maleic anhydride resin, oxidation inhibitor, lubricant and other auxiliary agent Homogeneous phase mixing, complete processing is as follows: one district's temperature 215 ~ 240 DEG C from spout to die head, two district's temperature 215 ~ 255 DEG C, three district's temperature 235 ~ 255 DEG C, four district's temperature 235 ~ 250 DEG C, five district's temperature 235 ~ 250 DEG C, six district's temperature 222 ~ 240 DEG C; The residence time is 1.5 ~ 2.5 minutes, engine speed 350 ~ 500 revs/min, and pressure is 10 ~ 16Mpa;
(4) cooling in cooling tower, drying is entered after extruding, cooling time is 5 ~ 15min, the ring mould of regulation is selected according to processing requirement, wherein Steam pressure control is between 3 ~ 7Pa, and temperature controls between 50 ~ 90 DEG C, should pay close attention to the change of pelleting temperature and pressure in compressed granulate process the moment, grasp inlet amount, its input speed is 2.5 ~ 3.5t/h, avoids nodulizer to operate at full capacity, and then pelletizing gets product;
(5) finished product put into packing scale and pack after weighing, before packaging, packing scale is calibrated, inspection by sampling is carried out to finished product simultaneously, and inspection finished appearance, packing should be stopped if any abnormal, then whether the check tag date is correct, whether Package and label is consistent, prevents finished product and label, outer packaging from not meeting the generation of event.
The product attribute of obtained alloy resin is as follows: IZOD shock strength 32kJ/m
2, tensile modulus 2850Mpa, tensile stress at break 48Mpa, heat-drawn wire 94 DEG C.
Embodiment three
A kind of halogen-free flame retardant ABS/PC alloy resin, formed by the proportioning raw materials of following parts by weight: polycarbonate 72 parts, acrylonitrile-butadiene-styrene copolymer 35 parts, LLDPE grafted maleic anhydride resin 8 parts, fire retardant 18 parts, 0.8 part, oxidation inhibitor, lubricant 0.6 part and other auxiliary agent 1.5 parts, described acrylonitrile-butadiene-styrene copolymer is formed by the proportioning raw materials of following parts by weight: styrene content 52 parts, acrylonitrile content 30 parts, butadiene content 30 parts, ABS acrylonitrile-butadiene-styrene copolymer is letex polymerization or mass polymerization.
Above-mentioned fire retardant is the mixture of Resorcinol two banks fat and red phosphorus.
Above-mentioned oxidation inhibitor is that four [β-(3,5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester and (2,4-di-tert-butyl-phenyl) tris phosphite mix according to the ratio of weight ratio 1:2.
Above-mentioned lubricant is ethylene bis stearamide.
Other above-mentioned auxiliary agent is that processing aid, releasing agent, photostabilizer, toughner or tinting material are wherein a kind of.
A kind of preparation method of halogen-free flame retardant ABS/PC alloy resin, completes according to the following steps:
(1) raw material is taken by weight ratio;
(2) LLDPE grafted maleic anhydride resin is first prepared: enter twin screw extruder by after acrylonitrile-butadiene-styrene copolymer, polyethylene, maleic anhydride, initiator, stearic acid Homogeneous phase mixing, complete processing is as follows: one district's temperature 150 ~ 175 DEG C from spout to die head, two district's temperature 155 ~ 175 DEG C, three district's temperature 165 ~ 170 DEG C, four district's temperature 165 ~ 170 DEG C, five district's temperature 155 ~ 165 DEG C; The residence time is 1 ~ 3 minute, and engine speed is 350 revs/min, and pressure is 10 ~ 16Mpa;
(3) twin screw extruder is entered by after polycarbonate, acrylonitrile-butadiene-styrene copolymer, LLDPE grafted maleic anhydride resin, oxidation inhibitor, lubricant and other auxiliary agent Homogeneous phase mixing, complete processing is as follows: one district's temperature 215 ~ 240 DEG C from spout to die head, two district's temperature 215 ~ 255 DEG C, three district's temperature 235 ~ 255 DEG C, four district's temperature 235 ~ 250 DEG C, five district's temperature 235 ~ 250 DEG C, six district's temperature 222 ~ 240 DEG C; The residence time is 1.5 ~ 2.5 minutes, engine speed 350 ~ 500 revs/min, and pressure is 10 ~ 16Mpa;
(4) cooling in cooling tower, drying is entered after extruding, cooling time is 5 ~ 15min, the ring mould of regulation is selected according to processing requirement, wherein Steam pressure control is between 3 ~ 7Pa, and temperature controls between 50 ~ 90 DEG C, should pay close attention to the change of pelleting temperature and pressure in compressed granulate process the moment, grasp inlet amount, its input speed is 2.5 ~ 3.5t/h, avoids nodulizer to operate at full capacity, and then pelletizing gets product;
(5) finished product put into packing scale and pack after weighing, before packaging, packing scale is calibrated, inspection by sampling is carried out to finished product simultaneously, and inspection finished appearance, packing should be stopped if any abnormal, then whether the check tag date is correct, whether Package and label is consistent, prevents finished product and label, outer packaging from not meeting the generation of event.
The product attribute of obtained alloy resin is as follows: IZOD shock strength 32kJ/m
2, tensile modulus 2850Mpa, tensile stress at break 48Mpa, heat-drawn wire 94 DEG C.
Embodiment four
A kind of halogen-free flame retardant ABS/PC alloy resin, formed by the proportioning raw materials of following parts by weight: polycarbonate 85 parts, acrylonitrile-butadiene-styrene copolymer 40 parts, LLDPE grafted maleic anhydride resin 10 parts, fire retardant 25 parts, 1.0 parts, oxidation inhibitor, lubricant 0.8 part and other auxiliary agent 2.5 parts, described acrylonitrile-butadiene-styrene copolymer is formed by the proportioning raw materials of following parts by weight: styrene content 65 parts, acrylonitrile content 35 parts, butadiene content 50 parts, ABS acrylonitrile-butadiene-styrene copolymer is letex polymerization or mass polymerization.
Above-mentioned fire retardant is the mixture of Resorcinol two banks fat and red phosphorus.
Above-mentioned oxidation inhibitor is that four [β-(3,5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester and (2,4-di-tert-butyl-phenyl) tris phosphite mix according to the ratio of weight ratio 1:2.
Above-mentioned lubricant is ethylene bis stearamide.
Other above-mentioned auxiliary agent is that processing aid, releasing agent, photostabilizer, toughner or tinting material are wherein a kind of.
A kind of preparation method of halogen-free flame retardant ABS/PC alloy resin, completes according to the following steps:
(1) raw material is taken by weight ratio;
(2) LLDPE grafted maleic anhydride resin is first prepared: enter twin screw extruder by after acrylonitrile-butadiene-styrene copolymer, polyethylene, maleic anhydride, initiator, stearic acid Homogeneous phase mixing, complete processing is as follows: one district's temperature 150 ~ 175 DEG C from spout to die head, two district's temperature 155 ~ 175 DEG C, three district's temperature 165 ~ 170 DEG C, four district's temperature 165 ~ 170 DEG C, five district's temperature 155 ~ 165 DEG C; The residence time is 1 ~ 3 minute, and engine speed is 350 revs/min, and pressure is 10 ~ 16Mpa;
(3) twin screw extruder is entered by after polycarbonate, acrylonitrile-butadiene-styrene copolymer, LLDPE grafted maleic anhydride resin, oxidation inhibitor, lubricant and other auxiliary agent Homogeneous phase mixing, complete processing is as follows: one district's temperature 215 ~ 240 DEG C from spout to die head, two district's temperature 215 ~ 255 DEG C, three district's temperature 235 ~ 255 DEG C, four district's temperature 235 ~ 250 DEG C, five district's temperature 235 ~ 250 DEG C, six district's temperature 222 ~ 240 DEG C; The residence time is 1.5 ~ 2.5 minutes, engine speed 350 ~ 500 revs/min, and pressure is 10 ~ 16Mpa;
(4) cooling in cooling tower, drying is entered after extruding, cooling time is 5 ~ 15min, the ring mould of regulation is selected according to processing requirement, wherein Steam pressure control is between 3 ~ 7Pa, and temperature controls between 50 ~ 90 DEG C, should pay close attention to the change of pelleting temperature and pressure in compressed granulate process the moment, grasp inlet amount, its input speed is 2.5 ~ 3.5t/h, avoids nodulizer to operate at full capacity, and then pelletizing gets product;
(5) finished product put into packing scale and pack after weighing, before packaging, packing scale is calibrated, inspection by sampling is carried out to finished product simultaneously, and inspection finished appearance, packing should be stopped if any abnormal, then whether the check tag date is correct, whether Package and label is consistent, prevents finished product and label, outer packaging from not meeting the generation of event.
The product attribute of obtained alloy resin is as follows: IZOD shock strength 32kJ/m
2, tensile modulus 2850Mpa, tensile stress at break 48Mpa, heat-drawn wire 94 DEG C.
Claims (8)
1. halogen-free flame retardant ABS/PC alloy resin, it is characterized in that, formed by the proportioning raw materials of following parts by weight: polycarbonate 60 ~ 85 parts, acrylonitrile-butadiene-styrene copolymer 15 ~ 40 parts, LLDPE grafted maleic anhydride resin 1 ~ 10 part, fire retardant 5 ~ 25 parts, 0.1 ~ 1.0 part, oxidation inhibitor, lubricant 0.1 ~ 0.8 part and other auxiliary agent 0.1 ~ 2.5 part.
2. a kind of halogen-free flame retardant ABS/PC alloy resin according to claim 1, it is characterized in that, described acrylonitrile-butadiene-styrene copolymer is formed by the proportioning raw materials of following parts by weight: styrene content 30 ~ 65 parts, acrylonitrile content 20 ~ 35 parts, butadiene content 10 ~ 50 parts, ABS acrylonitrile-butadiene-styrene copolymer is letex polymerization or mass polymerization.
3. a kind of halogen-free flame retardant ABS/PC alloy resin according to claim 4, is characterized in that, described fire retardant is one or more in Resorcinol two banks fat or red phosphorus.
4. a kind of halogen-free flame retardant ABS/PC alloy resin according to claim 1, it is characterized in that, described oxidation inhibitor is four [β-(3,5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester and (2,4-di-tert-butyl-phenyl) tris phosphite join and mix.
5. a kind of halogen-free flame retardant ABS/PC alloy resin according to claim 1, is characterized in that, described lubricant is ethylene bis stearamide.
6. a kind of halogen-free flame retardant ABS/PC alloy resin according to claim 1, is characterized in that, other described auxiliary agent is that processing aid, releasing agent, photostabilizer, toughner or tinting material are wherein a kind of.
7. the preparation method of a kind of halogen-free flame retardant ABS/PC alloy resin according to claim 1, is characterized in that, complete according to the following steps:
(1) raw material is taken by weight ratio;
(2) LLDPE grafted maleic anhydride resin is first prepared: enter twin screw extruder by after acrylonitrile-butadiene-styrene copolymer, polyethylene, maleic anhydride, initiator, stearic acid Homogeneous phase mixing, complete processing is as follows: one district's temperature 150 ~ 175 DEG C from spout to die head, two district's temperature 155 ~ 175 DEG C, three district's temperature 165 ~ 170 DEG C, four district's temperature 165 ~ 170 DEG C, five district's temperature 155 ~ 165 DEG C; The residence time is 1 ~ 3 minute, and engine speed is 350 revs/min, and pressure is 10 ~ 16Mpa;
(3) twin screw extruder is entered by after polycarbonate, acrylonitrile-butadiene-styrene copolymer, LLDPE grafted maleic anhydride resin, oxidation inhibitor, lubricant and other auxiliary agent Homogeneous phase mixing, complete processing is as follows: one district's temperature 215 ~ 240 DEG C from spout to die head, two district's temperature 215 ~ 255 DEG C, three district's temperature 235 ~ 255 DEG C, four district's temperature 235 ~ 250 DEG C, five district's temperature 235 ~ 250 DEG C, six district's temperature 222 ~ 240 DEG C; The residence time is 1.5 ~ 2.5 minutes, engine speed 350 ~ 500 revs/min, and pressure is 10 ~ 16Mpa;
(4) cooling in cooling tower, drying is entered after extruding, cooling time is 5 ~ 15min, the ring mould of regulation is selected according to processing requirement, wherein Steam pressure control is between 3 ~ 7Pa, and temperature controls between 50 ~ 90 DEG C, should pay close attention to the change of pelleting temperature and pressure in compressed granulate process the moment, grasp inlet amount, its input speed is 2.5 ~ 3.5t/h, avoids nodulizer to operate at full capacity, and then pelletizing gets product;
(5) finished product put into packing scale and pack after weighing, before packaging, packing scale is calibrated, inspection by sampling is carried out to finished product simultaneously, and inspection finished appearance, packing should be stopped if any abnormal, then whether the check tag date is correct, whether Package and label is consistent, prevents finished product and label, outer packaging from not meeting the generation of event.
8. the preparation method of a kind of halogen-free flame retardant ABS/PC alloy resin according to claim 7, is characterized in that, the product attribute of obtained alloy resin is as follows: IZOD shock strength 32kJ/m
2, tensile modulus 2850Mpa, tensile stress at break 48Mpa, heat-drawn wire 94 DEG C.
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| CN107189327A (en) * | 2017-06-14 | 2017-09-22 | 陈丽 | A kind of high impact plastic material and preparation method thereof |
| CN108410115A (en) * | 2018-03-31 | 2018-08-17 | 安徽路明光电科技有限公司 | A kind of fire-retardant lampshades of LED and preparation method thereof |
| CN113478669A (en) * | 2021-07-13 | 2021-10-08 | 威海金七星新材料有限公司 | High-strength material, auxiliary walking device made of high-strength material, production equipment and method |
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| CN108410115A (en) * | 2018-03-31 | 2018-08-17 | 安徽路明光电科技有限公司 | A kind of fire-retardant lampshades of LED and preparation method thereof |
| CN113478669A (en) * | 2021-07-13 | 2021-10-08 | 威海金七星新材料有限公司 | High-strength material, auxiliary walking device made of high-strength material, production equipment and method |
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