CN102030954B - PVC-ABS-EVA alloy material and preparation method thereof - Google Patents
PVC-ABS-EVA alloy material and preparation method thereof Download PDFInfo
- Publication number
- CN102030954B CN102030954B CN 201010576777 CN201010576777A CN102030954B CN 102030954 B CN102030954 B CN 102030954B CN 201010576777 CN201010576777 CN 201010576777 CN 201010576777 A CN201010576777 A CN 201010576777A CN 102030954 B CN102030954 B CN 102030954B
- Authority
- CN
- China
- Prior art keywords
- pvc
- abs
- eva
- alloy material
- mixture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a PVC-ABS-EVA (Polyvinyl Chloride-Acrylonitrile Butadiene Styrene- Ethylene Vinyl Acetate Copolymer) alloy material which comprises the following components in parts by weight of: 60-90 PVC, 3-25 ABS, 2-20 EVA, and 1-5 heat stabilizer. The PVC-ABS-EVA alloy material has not only better bending strength, flexural modulus, tensile strength and the like, but also outstanding impact resistance. Under the common action of the components, the PVC-ABS-EVA alloy material has excellent processability, chemical corrosion resistance, better gloss, colorability, decorative performance, low temperature resistance, thermal stability and lower machine-shaping temperature. A preparation method of the PVC-ABS-EVA alloy material comprises the step of mixing the components by stage to make the components mix fully, and is suitable for industrial production with simple process, easy control and low cost.
Description
Technical field
The invention belongs to modified plastics alloy field, particularly a kind of PVC-ABS-EVA alloy material and preparation method thereof.
Background technology
The most basic requirements of outdoor goods such as air conditioner housing, grass-remover, fiber cable cross connection box are to support weather and the bad working environment that is subjected to drastic change.It will have waterproof airsetting knot, waterproof and dustproof, insect-pest and the plague of rats, characteristics that the shock resistance damage capability is strong.Therefore, the casing outside requires than higher aspects such as waterproof, protection against the tide, dustproof, anticollision infringement, the insect-pest plagues of rats; Its inboard requires very high to temperature, humidity control.Traditional metal cabinet because its poor performance aspect waterproof airsetting knot is eliminated gradually, becomes the trend place in this field to mould Dai Gangyi.
PVC (polyvinyl chloride) resin is one of the highest general purpose material of present cost performance because of functions such as excellent chemical stability, wear resistance, mechanical property, electrical insulating property, self-extinguishing, the goods transparency, heat insulation, noise eliminations.But its structural defective, cause the poor heat stability, ageing resistance of PVC goods weak (be subjected to light, heat, oxygen do the time spent degrade easily, decomposition and reaction such as crosslinked), and shortcoming such as easy embrittlement makes its processing difficulties when being hit, and is not suitable for making structured material, thereby has influenced its application.
ABS (acrylonitrile-butadiene-styrene (ABS)) is a kind of shock resistance, heat-resisting, the wear-resisting and all good thermoplastic resins of processing characteristics, be widely used in fields such as automobile, electronic apparatus, light industry household electrical appliances and building, but limited further widening of its Application Areas because of deficiency such as not fire-retardant, that thermotolerance is relatively poor, cost is higher.
EVA (ethylene-vinyl acetate copolymer) properties-correcting agent not only has good heat, light stability and low-temperature performance etc., and can improve Drawing abillity and weathering resistance effectively.But, in polyvinyl chloride resin, only use EVA as properties-correcting agent, resulting modified PVC tensile strength of material and heat-drawn wire are on the low side, and chemical resistant properties is also relatively poor.
Summary of the invention
The purpose of the embodiment of the invention is to overcome the above-mentioned deficiency of prior art, and provide a kind of and have good processing properties and resistance to low temperature, and the strong PVC-ABS-EVA alloy material of shock resistance.
And, the preparation method of above-mentioned PVC-ABS-EVA alloy material.
In order to realize the foregoing invention purpose, technical scheme of the present invention is as follows:
A kind of PVC-ABS-EVA alloy material comprises the recipe ingredient of following parts by weight:
Divinyl segment content 50～70% among the described ABS, the median size of divinyl rubber phase≤0.18 μ m; Vinyl acetate segment content among the described EVA is 30%～60%.
And a kind of PVC-ABS-EVA alloy material preparation method comprises the steps:
Take by weighing each component respectively by above-mentioned PVC-ABS-EVA alloy material prescription;
After the PVC component is heated to 50～70 ℃, in the PVC component, add stablizer, mix, form mixture I;
After mixture I is heated to 80～90 ℃, in mixture I, adds ABS, EVA, and mix, form mixtures II;
After mixtures II is heated to 110～130 ℃, stir, cooling is left standstill, and forms mixtures III;
Cooled mixtures III is carried out extruding pelletization, obtain the PVC-ABS-EVA alloy material.
ABS and EVA in the above-mentioned PVC-ABS-EVA alloy material have good synergy, make the PVC-ABS-EVA alloy material not only have performances such as good flexural strength, modulus in flexure, tensile strength, also has outstanding shock resistance, with respect to the PVC material, its impact property is more than doubled.Thermo-stabilizer can be well compatible with other components, can suppress, eliminate asymmetric free radical side chain and active reaction residue on the PVC molecular chain effectively, prevent the degraded that scission of link, disproportionation produce, thereby improve PVC-ABS-EVA alloy material stability, weather resistance and ageing-resistant performance.Acting in conjunction by above-mentioned recipe ingredient, make the PVC-ABS-EVA alloy material have good processing properties, resistance to chemical corrosion, but good glossiness, tinctorial property decorate properties, resistance to low temperature, thermal stability and lower machine-shaping temperature.This PVC-ABS-EVA alloy material preparation method makes each component fully mix by stage by stage each component being mixed, and its operation is simple, easily control, and cost is low, is fit to suitability for industrialized production.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is PVC-ABS-EVA alloy material preparation method preparation technology schematic flow sheet of the present invention;
Fig. 2 is the preferred process flow diagram of PVC-ABS-EVA alloy material preparation method of the present invention shown in Figure 1.
Embodiment
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
The embodiment of the invention provides a kind of PVC-ABS-EVA alloy material with favorable shock resistance, resistance to low temperature, thermal stability and processing characteristics.This PVC-ABS-EVA alloy material comprises the recipe ingredient of following parts by weight:
ABS and EVA in the above-mentioned PVC-ABS-EVA alloy material have good synergy, make the PVC-ABS-EVA alloy material not only have performances such as good flexural strength, modulus in flexure, tensile strength, also has outstanding shock resistance, with respect to the PVC material, its impact property is more than doubled.Thermo-stabilizer can be well compatible with other components, can suppress, eliminate asymmetric free radical side chain and active reaction residue on the PVC molecular chain effectively, prevent the degraded that scission of link, disproportionation produce, thereby improve PVC-ABS-EVA alloy material stability, weather resistance and ageing-resistant performance.Acting in conjunction by above-mentioned recipe ingredient, make the PVC-ABS-EVA alloy material have good processing properties, resistance to chemical corrosion, but good glossiness, tinctorial property decorate properties, resistance to low temperature, thermal stability and lower machine-shaping temperature.
Particularly, above-mentioned PVC is preferably mean polymerisation degree 700～900, and the K value is 55～62 PVC.This preferred PVC type, that can effectively improve the PVC-ABS-EVA alloy material stretches performances such as intensity, shock strength, Young's modulus, and it is better perhaps to improve PVC-ABS-EVA alloy material processing characteristics effectively.
The uniform linear that is in PVC of above-mentioned ABS distributes, be conducive to the raising of tensile strength, EVA is grain pattern and distributes in PVC, and has zone of transition, from the particle to external phase, be the disperse shape, effectively improved the impact-resistance of PVC-ABS-EVA alloy material system.This ABS is preferably divinyl segment content 50～70%, and divinyl rubber phase average particle diameter is less than or equal to the ABS of 0.18 μ m, and this ABS is rubber phase median size 0.15 μ m more preferably.This preferred ABS can improve PVC-ABS-EVA alloy material impact-resistance performance further.This ABS is preferably the high glue ABS grafting powder (high glue powder) that emulsion polymerization is produced.
Above-mentioned EVA can significantly improve the snappiness of PVC-ABS-EVA alloy material owing to have lower second-order transition temperature, and reduces processing temperature.This EVA has lubrication simultaneously, so EVA and PVC consistency relatively low (and certain consistency is arranged again), therefore, this EVA can penetrate between the molecular chain of PVC, weaken attractive interaction between molecular chain, and make PVC molecular chain easier slip and rotation each other when distortion, be unlikely to too to reduce simultaneously the second-order transition temperature (Tg) of PVC again.It is 30%～60% EVA that this EVA is preferably vinyl acetate segment content.This preferred EVA can improve PVC-ABS-EVA alloy material shock resistance further and reduce processing temperature.
Above-mentioned EVA and the interaction of ABS, can effectively improve consistency and perviousness on the above-mentioned PVC-ABS-EVA alloy material recipe ingredient three interface, make that the phase farmland is less on the interface of ternary system, the interface is fuzzyyer, be evenly distributed, exist mutually and run through, the linear that is beneficial to tensile strength plays a role in same system with the rubber particles structure that is beneficial to impact, resists toughness indexs such as intensity and fracture rate elongation thereby improve the PVC-ABS-EVA alloy material.
The existence of above-mentioned thermal stabilizer component makes the PVC-ABS-EVA alloy material possess outside the above-mentioned good characteristic, can also effectively improve PVC-ABS-EVA alloy material stability, weather resistance and ageing-resistant performance.This is because the most important reason of PVC degraded is deoxygenated hydrogen.Conjugated double bond appears in the continuation along with the dehydrochlorination process, and the light absorbing wavelength of polymkeric substance changes, and begins colour developing when 6 or 7 polyene structures occurring in a conjugated system, PVC molecular absorption UV-light, thus present yellow.Produce hydrogenchloride in this reaction process and can reach 0.1%.Along with the conjugated double bond number increases, the degradation rate aggravation, the absorb light wavelength change, the color of PVC also deepens gradually, deep yellow, reddish-brown is until complete blackening.
In order to remedy the major defect of PVC homopolymer and multipolymer to greatest extent, the hydrogenchloride that discharges with the polyvinyl chloride resin thermolysis in need reaching with the stablizer absorption is as the scavenging agent of hydrogenchloride; Or with the free radical generation addition reaction of unsettled polyene structure, generation; Or as oxidation inhibitor; Or change the polyenoid sequential structure to stop color and luster variation, molecular rupture and crosslinked.Stablizer must have good compatiblely with the PVC system, can not damage the aesthetic feeling of material system integral body, and should have and regulate lubricated performance.Therefore, above-mentioned thermo-stabilizer is preferably one or more of Methyl stannum mercaptide, Bis(lauroyloxy)dioctyltin, double isooctyl mercaptoacetate dioctyltin.
Further, above-mentioned PVC-ABS-EVA alloy material also comprises the recipe ingredient of following parts by weight:
0.1～2 part in oxidation inhibitor
0.1～2 part of UV light absorber
1～10 part of processing aid.
Therefore, above-mentioned PVC-ABS-EVA alloy material preferably includes the recipe ingredient of following parts by weight:
Further, in the screening formulation of above-mentioned PVC-ABS-EVA alloy material, be that 100, ABS and EVA gross weight are 7～20 parts in weight in the PVC-ABS-EVA alloy material recipe ingredient, more preferably 15 parts.At this moment, prepared PVC-ABS-EVA alloy material best performance, specific performance is stated in the table 2 shown in the embodiment 1 to 6 as follows.
Particularly, the existence of above-mentioned antioxidant component makes the PVC-ABS-EVA alloy material possessing outside the above-mentioned good characteristic, also has good antioxygen property, further the stability of Reinforced PVC-ABS-EVA alloy material.Wherein, this oxidation inhibitor preferably includes main anti-oxidant and auxiliary antioxidant, and the quality optimization of this main anti-oxidant and auxiliary antioxidant is 1: 2.Wherein, main anti-oxidant is preferably β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecanol ester, and its molecular weight is 530.86g/mol, trade(brand)name IRGANOX1076; Auxiliary antioxidant is preferably three (2,4-di-tert-butyl-phenyl) phosphorous acid ester, and molecular weight is 646.9g/mol, trade(brand)name IRGANOX168, and Switzerland Ciba company produces.Like this, by primary antioxidant and auxiliary antioxidant and other component actings in conjunction, improved the antioxidant property of PVC-ABS-EVA alloy material effectively.
The existence of above-mentioned UV light absorber component makes the PVC-ABS-EVA alloy material possessing outside the above-mentioned good characteristic, also has good weathering resistance, ageing resistance.Wherein, this UV light absorber is preferably benzotriazole compound, as one or more of UV234, UV944, UV327.
Above-mentioned processing aid is preferably one or more in methyl methacrylate and butyl acrylate copolymer, low molecular weight polyethylene, lubricant, the fire retardant.Wherein, when selecting fire retardant for use in the processing aid, this fire retardant makes the PVC-ABS-EVA alloy material possessing outside the above-mentioned good characteristic, also has good flame retardant property.This fire retardant be as can being antimonous oxide, certainly, also can adopt other fire retardant of this area to substitute, as halogenated flame retardant etc.Lubricant can be the wax class.
The present invention also provides above-mentioned PVC-ABS-EVA alloy material preparation method, and its technical process as shown in Figure 1.This method comprises the steps:
S1: take by weighing each component respectively by PVC-ABS-EVA alloy material prescription;
S2: after the PVC component is heated to 50～70 ℃, in the PVC component, add stablizer, mix, form mixture I;
S3: after mixture I is heated to 80～90 ℃, in mixture I, adds ABS, EVA, and mix, form mixtures II;
S4: after mixtures II is heated to 110～130 ℃, stir, cooling is left standstill, and forms mixtures III;
S5: cooled mixtures III is carried out extruding pelletization, obtain the PVC-ABS-EVA alloy material.
This PVC-ABS-EVA alloy material preparation method makes each component fully mix by stage by stage each component being mixed, and its operation is simple, easily control, and cost is low, is fit to suitability for industrialized production.
Particularly, in the above-mentioned PVC-ABS-EVA alloy material preparation method S1 step, this PVC-ABS-EVA alloy material, the recipe ingredient of the parts by weight that comprise is:
In the above-mentioned PVC-ABS-EVA alloy material preparation method S2 step, the temperature that the PVC component is heated is preferably 60 ℃, and the PVC component is mixed preferably with stabilizer component and mixed in homogenizer, and the time of its mixing is preferably 1～3min.This PVC component is mixed to such an extent that step is preferably with stabilizer component: earlier the PVC component is added in the homogenizer, be heated to 60 ℃ then, and the adding stabilizer component makes both abundant mixing under the high rotating speed of 750～900r/min, and bring into play stablizer to the stabilization of PVC.
In the above-mentioned PVC-ABS-EVA alloy material preparation method S3 step, the temperature that mixture I is heated is preferably 80 ℃.
Further, when in mixture I, adding ABS, EVA, also can add 0.1～2 part antioxidant in the mixture I.Under the high rotating speed of 750～900r/min, mix 2～4min fully then.
Further, the temperature of mixture preferably is heated to 100～110 ℃, more preferably 100 ℃, and add 0.1～2 part UV light absorber and 1～10 part processing aid.Under the high rotating speed of 700～850r/min, mix 2～4min fully then, form mixtures II.
In the above-mentioned PVC-ABS-EVA alloy material preparation method S4 step, the temperature that mixtures II is heated is preferably 125 ℃, and mixes 5～10min under the slow speed of revolution of 300～450r/min fully.Mixtures III after will heating then preferably changes in the cold mixer and cools off.When being cooled to below 40 ℃, mixtures III can being got rid of from cold mixer, and be left standstill.
In the above-mentioned PVC-ABS-EVA alloy material preparation method S5 step, the mixture extruding pelletization preferably adopts the twin screw extruder extruding pelletization, is CTE-35 (L-D=48) twin screw extruder as the model of producing by Nanjing Ke Ya company.This extrusion temperature is preferably 150～180 ℃, and the rotating speed of twin screw extruder screw rod is preferably 180～220 rev/mins.
From the above, above-mentioned PVC-ABS-EVA alloy material preparation method preferably includes following steps, and its process flow sheet is shown in 2:
S1: take by weighing each component respectively by PVC-ABS-EVA alloy material prescription; Wherein, the parts by weight recipe ingredient of PVC-ABS-EVA alloy material is as follows:
S2: the PVC component is joined in the homogenizer, and after being heated to 60 ℃, in the PVC component, add stablizer, under the high rotating speed of 800～900r/min, mix 1～3min, form mixture I;
S3: after mixture I is heated to 80 ℃, in mixture I, add ABS, EVA and oxidation inhibitor, and under the high rotating speed of 750～900r/min, mix 2～4min, after continuing again to be heated to 100 ℃, add UV light absorber and processing aid, under the high rotating speed of 700～850r/min, mix 2～4min fully then, form mixtures II
S4: mixtures II is heated to 125 ℃, and after mixing 5～10min under the slow speed of revolution of 300～450r/min, mixtures III is changed in the cold mixer from homogenizer cool off.When being cooled to below 40 ℃, mixtures III being got rid of from cold mixer, and left standstill;
S5: cooled mixtures III is sent into the twin screw extruder from the spout of twin screw extruder, and it is 150～180 ℃ at extrusion temperature, the rotating speed of twin screw extruder screw rod is to carry out extruding pelletization under the condition of 180～220r/min, obtains the PVC-ABS-EVA alloy material.
In the pre-mixing process of above-mentioned S1～S4 step, in view of the self attributes of various raw materials and synergistic effect each other, the embodiment of the invention has adopted segmented mode to add raw material.When material is warmed up to rapidly under the high speed shear effect when setting, as 125 ℃, PVC particle deliquescing gradually expands, and produces gelation to a certain degree, makes the material that fusing point is lower, and as lubricant etc., fusing is infiltrated or is attached on the PVC surface.Simultaneously, various raw materials are under the high speed shear effect, and particle is refinement gradually, and surface energy sharply increases, and absorption makes the PVC particle become gradually greatly on the PVC surface again then, and material obtains preliminary gelation and dispersion effect preferably.The dry blend that is obtained by above-mentioned steps has bigger apparent density, and the flow capacity of material is strengthened, and is conducive to carry, and obtains higher extrusion efficiency.And cooling off below 40 ℃, the apparent density of dry blend will further become greatly, be conducive to the blend extruding pelletization of step operation down.
Now prescription and the preparation method with concrete PVC-ABS-EVA alloy material is example, and the present invention is further elaborated.
Embodiment 1
The prescription of PVC-ABS-EVA alloy material sees Table 1.Wherein, stablizer is Methyl stannum mercaptide, oxidation inhibitor is 0.1 part β-(3, the 5-di-tert-butyl-hydroxy phenyl) three (2 of propionic acid octadecanol ester and 0.2 part, the 4-di-tert-butyl-phenyl) phosphorous acid ester, UV light absorber is that UV light absorber is UV234, and processing aid is methyl methacrylate and butyl acrylate copolymer (ACR401) and antimonous oxide mixture.
Its preparation method is as follows:
S1: take by weighing each component respectively by PVC-ABS-EVA alloy material prescription in the table 1;
S2: the PVC component is joined in the homogenizer, and after being heated to 60 ℃, in the PVC component, add stablizer, under the high rotating speed of 850r/min, mix 3min, form mixture I;
S3: after mixture I is heated to 80 ℃, in mixture I, adds ABS, EVA and oxidation inhibitor, and under the high rotating speed of 800r/min, mix 4min, form mixture I '; Continue again under the high rotating speed of 800r/min stirs, to add UV light absorber and processing aid, and mix 3min formation mixtures II;
S4: mixtures II is heated to 125 ℃, and after mixing 8min under the slow speed of revolution of 380r/min, mixtures III is changed in the cold mixer from homogenizer cool off.When being cooled to below 40 ℃, mixtures III being discharged from cold mixer, and leave standstill;
S5: cooled mixtures III is sent into the twin screw extruder from the spout of twin screw extruder, and it is 160 ℃ at extrusion temperature, the rotating speed of twin screw extruder screw rod is to carry out extruding pelletization under the condition of 200r/min, obtains the PVC-ABS-EVA alloy material.
Embodiment 2
The prescription of PVC-ABS-EVA alloy material sees Table 1.Wherein, stablizer is Methyl stannum mercaptide, oxidation inhibitor is 0.1 part β-(3, the 5-di-tert-butyl-hydroxy phenyl) three (2 of propionic acid octadecanol ester and 0.2 part, the 4-di-tert-butyl-phenyl) phosphorous acid ester, UV light absorber is that UV light absorber is UV234, and processing aid is methyl methacrylate and butyl acrylate copolymer (ACR401) and antimonous oxide mixture.
Its preparation method such as embodiment 1.
Embodiment 3 to embodiment 6 prescription sees Table 1, and the correlated performance by the PVC-ABS-EVA alloy material of embodiment 1～6 preparation sees Table 2 accordingly.
Embodiment 7
The component of the parts by weight of PVC-ABS-EVA alloy material is: the PVC of K value=55～59 is 60 parts, divinyl segment content 50%, and the ABS of rubber phase median size 0.15 μ m is 25 parts, the content of vinyl acetate (VAC) segment is that 60% EVA is 2 parts.The Bis(lauroyloxy)dioctyltin thermo-stabilizer is 5 parts.
Its preparation method is as follows:
S1: take by weighing each component respectively by above-mentioned PVC-ABS-EVA alloy material prescription;
S2: the PVC component is joined in the homogenizer, and after being heated to 60 ℃, in the PVC component, add stablizer, under the high rotating speed of 850r/min, mix 3min, form mixture I;
S3: after mixture I is heated to 80 ℃, in mixture I, adds ABS, EVA, and under the high rotating speed of 800r/min, mix 4min, form mixtures II;
S4: mixtures II is heated to 125 ℃, and after mixing 8min under the slow speed of revolution of 380r/min, mixtures III is changed in the cold mixer from homogenizer cool off.When being cooled to below 40 ℃, mixtures III being got rid of from cold mixer, and left standstill;
S5: cooled mixtures III is sent into the twin screw extruder from the spout of twin screw extruder, and it is 150 ℃ at extrusion temperature, the rotating speed of twin screw extruder screw rod is to carry out extruding pelletization under the condition of 220r/min, obtains the PVC-ABS-EVA alloy material.
Embodiment 8
The component of the parts by weight of PVC-ABS-EVA alloy material is: the PVC of K value=60～62 is 90 parts, and divinyl segment content 70%, and average rubber particle size 0.15 μ mABS is 3 parts, the content of vinyl acetate (VAC) segment are that 30% EVA is 20 parts.It is 1 part by 1: 1 Bis(lauroyloxy)dioctyltin of mass ratio and two different thermo-stabilizers of Thiovanic acid.
Its preparation method is as follows:
S1: take by weighing each component respectively by above-mentioned PVC-ABS-EVA alloy material prescription;
S2: the PVC component is joined in the homogenizer, and after being heated to 60 ℃, in the PVC component, add stablizer, under the high rotating speed of 850r/min, mix 3min, form mixture I;
S3: after mixture I is heated to 80 ℃, in mixture I, adds ABS, EVA, and under the high rotating speed of 800r/min, mix 4min, form mixtures II;
S4: mixtures II is heated to 125 ℃, and after mixing 8min under the slow speed of revolution of 380r/min, mixtures III is changed in the cold mixer from homogenizer cool off.When being cooled to below 40 ℃, mixtures III being got rid of from cold mixer, and left standstill;
S5: cooled mixtures III is sent into the twin screw extruder from the spout of twin screw extruder, and it is 150 ℃ at extrusion temperature, the rotating speed of twin screw extruder screw rod is to carry out extruding pelletization under the condition of 220r/min, obtains the PVC-ABS-EVA alloy material.
The prescription of table 1 embodiment 1 to embodiment 6
The PVC-ABS-EVA alloy material correlated performance of table 2 embodiment 1～6 preparation
By last table 1 and table 2 as can be known, because PVC has good flame retardant resistance, being aided with a spot of antimonous oxide is enough to make the PVC-ABS-EVA alloy material to reach fire-retardant V-0 rank.Keeping under the constant situation of oxidation inhibitor, thermo-stabilizer, UV light absorber and other processing aid deal, the mechanical property of PVC-ABS-EVA alloy material, thermal property, low-temperature impact-resistant and weather resistance etc. depend primarily on the K value of polyvinyl chloride resin, and the adding proportion of modifier A BS and EVA.Learnt that by experimental result polyvinyl chloride resin K value is at 60～62 o'clock, PVC-ABS-EVA alloy material over-all properties comprises that tensile strength, shock strength, Young's modulus etc. are higher than the performance that the K value is 55～59 o'clock PVC-ABS-EVA alloy materials; But the latter is because the K value is lower, and namely the glutinous number of resin is lower, and the PVC-ABS-EVA alloy material is mobile better, so processing characteristics is better.
The ABS of different proportionings and EVA properties-correcting agent have remarkably influenced to alloy property in the embodiment of the invention.In above-mentioned 6 formulation examples, with the prepared PVC-ABS-EVA alloy material over-all properties optimum of embodiment 5 prescriptions.ABS and EVA total addition level reach 15%, make the PVC-ABS-EVA alloy material have good balanced mechanical property.EVA can significantly improve the snappiness of PVC owing to have lower second-order transition temperature, and reduces processing temperature, has lubrication simultaneously; ABS is " sea-island " phase structure uniformly in PVC, when being subjected to external force, divinyl among the ABS serves as stress raiser, bring out matrix and produce a large amount of shear zone and crazing, in the grand linear that now shows as, be conducive to the raising of PVC-ABS-EVA alloy material tensile strength and impact property, EVA is grain pattern and distributes in PVC, and there is zone of transition, from the particle to external phase, is the disperse shape, can improve the impact-resistance of PVC-ABS-EVA alloy material, because the interaction of EVA and ABS, the farmland is less mutually on consistency on the raising interface and the interface of perviousness ternary system, and the interface is fuzzyyer, is evenly distributed to exist mutually to run through; Two kinds of compatilizer effect structures play a role in same system jointly.Toughness indexs such as prepared PVC-ABS-EVA alloy material shock strength, tensile strength, fracture rate elongation are more superior so embodiment 5 fills a prescription.
The weathering resistance aspect, main and the EVA of alloy material aberration Δ E involved in the present invention, the content of ABS is relevant, after the fluorescent ultraviolet lamp irradiation experiment of product by 10 circulations (240 hours), PVC-ABS-EVA alloy material colour-change Δ E＜1 that embodiment 1 to embodiment 6 is prepared, the PVC-ABS-EVA alloy material possesses stronger ultra-violet radiation resisting ability, especially in embodiment 6 prescriptions, aberration Δ E ≈ 0.5, mainly be because contain the unsaturated component of polyhutadiene among the ABS, be subject to ultraviolet ray " attack ", so the content of ABS is more low, PVC-ABS-EVA alloy material light and thermally stable is more good.
The method flow that above-described embodiment 1 to embodiment 8 provides is simple, processing condition are reasonable, select suitable substance P VC matrix resin, properties-correcting agent and processing aid for use, extrude according to certain mixed, then can make the PVC-ABS-EVA alloy material that possesses excellent weathering resistance, chemical resistant properties, low-temperature impact-resistant and flame retardant properties, have suitability widely.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. PVC-ABS-EVA alloy material comprises the recipe ingredient of following parts by weight:
Divinyl segment content 50～70% among the described ABS, the median size of divinyl rubber phase≤0.18 μ m; Vinyl acetate segment content among the described EVA is 30%～60%; Wherein, the addition of ABS and EVA is 15% of PVC-ABS-EVA alloy material recipe ingredient gross weight;
Described PVC mean polymerisation degree 700～900, the K value of described PVC is 60～62.
2. PVC-ABS-EVA alloy material according to claim 1 is characterized in that:
Described thermo-stabilizer is one or more of Methyl stannum mercaptide, Bis(lauroyloxy)dioctyltin, double isooctyl mercaptoacetate dioctyltin.
3. PVC-ABS-EVA alloy material according to claim 1 is characterized in that: the recipe ingredient that also comprises following parts by weight:
0.1～2 part in oxidation inhibitor
0.1～2 part of UV light absorber
1～10 part of processing aid.
4. PVC-ABS-EVA alloy material according to claim 3, it is characterized in that: described oxidation inhibitor comprises main anti-oxidant and auxiliary antioxidant;
Described UV light absorber is the benzotriazole category powder;
Described processing aid is one or more in methyl methacrylate and butyl acrylate copolymer, low molecular weight polyethylene, the fire retardant.
5. a PVC-ABS-EVA alloy material preparation method comprises the steps:
Take by weighing each component respectively by the prescription in the arbitrary described PVC-ABS-EVA alloy material of claim 1～2;
After the PVC component is heated to 50～70 ℃, in the PVC component, add thermo-stabilizer, mix, form the mixture I;
After the mixture I is heated to 80～90 ℃, in the mixture I, adds ABS, EVA, and mix, form the mixture II;
After the mixture II is heated to 110～130 ℃, stir, cooling is left standstill, and obtains the mixture III;
Cooled mixture III is carried out extruding pelletization, obtain the PVC-ABS-EVA alloy material.
6. PVC-ABS-EVA alloy material preparation method according to claim 5 is characterized in that: adding ABS, EVA in the mixture I when, also be added with 0.1～2 part antioxidant;
The mixture II had been heated to before 110～130 ℃, earlier the mixture II is being heated to 100～110 ℃, adding 0.1～2 part UV light absorber and 1～10 part processing aid this moment.
7. PVC-ABS-EVA alloy material preparation method according to claim 5, it is characterized in that: described is to adopt twin screw extruder through cooled mixture III extruding pelletization, the extrusion temperature of described mixture is 150～180 ℃, and the rotating speed of described twin screw extruder screw rod is 180～220 rev/mins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010576777 CN102030954B (en) | 2010-12-07 | 2010-12-07 | PVC-ABS-EVA alloy material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010576777 CN102030954B (en) | 2010-12-07 | 2010-12-07 | PVC-ABS-EVA alloy material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102030954A CN102030954A (en) | 2011-04-27 |
| CN102030954B true CN102030954B (en) | 2013-09-11 |
Family
ID=43884443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010576777 Active CN102030954B (en) | 2010-12-07 | 2010-12-07 | PVC-ABS-EVA alloy material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102030954B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103073835B (en) * | 2013-01-05 | 2014-10-01 | 上海瀚氏模具成型有限公司 | Light aging resistant ABS (acrylonitrile butadiene styrene) plastic used for inside decorations of automobile and preparation method thereof |
| CN105647064B (en) * | 2016-03-09 | 2018-02-13 | 广州宏信塑胶工业有限公司 | A kind of weather-proof PVC plastic wallpaper and preparation method thereof |
| CN109294119A (en) * | 2018-09-30 | 2019-02-01 | 康泰塑胶科技集团有限公司 | Anti- mouse and termite sting bad sheath tubing and preparation method thereof |
| TWI828354B (en) * | 2022-10-07 | 2024-01-01 | 南亞塑膠工業股份有限公司 | Pvc resin composition and method for manufacturing pipe having high heat resistance and transparency |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4954546A (en) * | 1986-05-30 | 1990-09-04 | Ciba-Geigy Corporation | PVC resin blend compositions stabilized with lauryltin compounds |
| CN101759953A (en) * | 2008-12-25 | 2010-06-30 | 深圳市科聚新材料有限公司 | Polyacrylonitrile-butadiene-styrene/polyvinyl chloride (ABS/PVC) polymeric material and preparation method thereof |
-
2010
- 2010-12-07 CN CN 201010576777 patent/CN102030954B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4954546A (en) * | 1986-05-30 | 1990-09-04 | Ciba-Geigy Corporation | PVC resin blend compositions stabilized with lauryltin compounds |
| CN101759953A (en) * | 2008-12-25 | 2010-06-30 | 深圳市科聚新材料有限公司 | Polyacrylonitrile-butadiene-styrene/polyvinyl chloride (ABS/PVC) polymeric material and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 何洋等.PVC的共混增韧改性.《高分子材料科学与工程》.2004,第20卷(第6期),第6至7页. * |
| 方敏等.PVC/EVA/ABS共混物结构对其加工行为及性能的影响.《华东化工学院学报》.1993,第19卷(第3期),第327至328页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102030954A (en) | 2011-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101693778B (en) | PVC/ABS blend and pipe thereof | |
| JP5950576B2 (en) | Thermoplastic flame retardant alloy and process for its preparation | |
| CN106397990B (en) | Modified polypropylene material and preparation method thereof | |
| CN102030954B (en) | PVC-ABS-EVA alloy material and preparation method thereof | |
| CN102675776A (en) | High-fluidity high-fire resistance polyvinyl chloride composite material and method for preparing same | |
| EP0927616B1 (en) | Impact-modified poly(vinyl chloride) exhibiting improved low-temperature fusion | |
| CN101759942A (en) | PMMA/PVC polymeric material and preparing method thereof | |
| CN104231431B (en) | A kind of glazed flame-retardant scratch-resistant polypropylene composition and preparation method thereof | |
| CN102030976B (en) | PC-ASA alloy material and preparation method thereof | |
| CN110105738B (en) | Flame-retardant PC/ABS material and preparation method and application thereof | |
| CN111171542B (en) | High CTI flame-retardant polycarbonate alloy material and preparation method and application thereof | |
| CN109294117A (en) | A kind of plum tube and its production technology | |
| CN108641388A (en) | A kind of flame-retardant wood-plastic composite material and preparation method thereof | |
| CN101671470B (en) | Fire-retardant high-ductility composite material and manufacturing method thereof | |
| CN103524919B (en) | A kind of battery cell case polychloroethylene composition and preparation method thereof | |
| CN103073809A (en) | High-impact high-weather-resistance environmental-friendly brominated flame-retardant ASA material and preparation method and application thereof | |
| CN101386704A (en) | Black flame-retardant polycarbonate material for electronic and electric appliance and film or sheet material thereof | |
| CN107163516A (en) | A kind of emergency light high saturating weather-resistance flame-retardant lampshade material and preparation method thereof | |
| CN115353692B (en) | High-weather-resistance black heat-insulation ASA resin and preparation method thereof | |
| CN106366686A (en) | Plastic wood material for manufacturing flame retardant door plank and preparation method of plastic wood | |
| WO2024045258A1 (en) | Wide-width low-temperature impact-resistant and bend-resistant pvc foamed co-extruded sheet and preparation method therefor | |
| CN110423478A (en) | A kind of anti-corrosive properties wood plastic composite and its production technology | |
| CN107325428A (en) | A kind of PVC and preparation method thereof | |
| CN115612224B (en) | Polyvinyl chloride composite material and preparation method thereof | |
| CN101353473A (en) | Highly transparent flame-retardant polycarbonate material, film and sheet material products thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |