CN1439674A - Polyvinyl chloride reinforcing and tougheness improving modifier and preparation and application thereof - Google Patents
Polyvinyl chloride reinforcing and tougheness improving modifier and preparation and application thereof Download PDFInfo
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- CN1439674A CN1439674A CN 03117483 CN03117483A CN1439674A CN 1439674 A CN1439674 A CN 1439674A CN 03117483 CN03117483 CN 03117483 CN 03117483 A CN03117483 A CN 03117483A CN 1439674 A CN1439674 A CN 1439674A
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Abstract
A strengthening and toughening modifier for preparing the polyvinyl chloride/nano inorganic particle composition is prepared from nano inorganic particles, polyvinyl chloride resin, coupling agent, stabilizer and disperser through vibrating ball grinding. Its product features high uniformity of nano particles, good interface compatibility between resin and particles, and high interface adhesion and impact and tension performance.
Description
One, technical field
The present invention relates to polymer processing field, saying so in more detail belongs to the properties-correcting agent that improves the polyvinyl chloride (PVC) RESINS mechanical property.The invention still further relates to the preparation method of properties-correcting agent, and with the matrix material of properties-correcting agent preparation.
Two, background technology
Polyvinyl chloride (PVC) RESINS is as one of five big resins for universal use, and its output is only second to polyethylene.At present, polyvinyl chloride (PVC) RESINS application and consumption structure are based on hard product, and world's polyvinyl chloride hard goods are used and consumption accounts for more than 65%.Growth along with national economy, country widelys popularize and uses chemical building material, the ratio of boardy product improves constantly in the PVC goods, and polrvinyl chloride product transforms to tubing, pipe fitting, hardware, hard bottle and section bar direction from soft goods such as electric wire, cable, leatheroid, plastic shoes, flooring laminates; Especially chemical building material demand growth such as tubing, sheet material, section bar are rapid.
The production of polyvinyl chloride resin has abundant raw material resources, and the resource that consumes petroleum is few, is good energy-conservation novel material, occupies an important position in the development of the national economy and development.The PVC building materials can not only substitute traditional construction material in a large number, as steel and timber; But also have energy-saving material-saving, protection ecological, improve living environment, improve building function with quality, reduce structural weight per square meter, the superiority such as convenient of constructing.At present consumption every year of material of construction, the market annual requirement was big with 10% speed increase.More and more higher to the requirement of the use properties of polyvinyl chloride simultaneously.
The application of unmodified polyvinyl chloride (PVC) RESINS has than obvious defects: shock resistance is relatively poor, and the breach resistance to impact shock of pure hard PVC has only 2-3KJ/m
2, belong to hard brittle material; Particularly low-temperature flexibility is poor, becomes fragile very easily embrittlement when being hit along with temperature reduces rapid hardening; The plasticizer migration of flexible PVC is bigger, embrittlement easily in the use.This has restricted further widening of PVC material range of application greatly.
PVC is carried out tough-increased and reinforced modification research, and exploitation high-strength and high ductility PVC intermingling material becomes the thing that numerous businessmans are dreamed of in order to replace some traditional engineering materials and existing engineering plastics.At first, people adopt the rubber elastomer toughened modified polyvinyl chloride.Although the elastic body toughening modification can obtain comparatively ideal toughness, can damage the intensity and the rigidity of material, heat-drawn wire also decreases, even the processing fluidity deterioration, and cost is also higher.
Along with the widespread use with plastics of developing rapidly of plastics industry, the filling-modified technology of plastics obtains people's attention day by day.In polymkeric substance, pass through to add various mineral filler composite moldings, not only can reduce the cost of goods greatly, and can significantly improve some performances of plastics, as mechanical property, thermal characteristics, electrical property, wear resisting property, ageing-resistant performance and dimensional stability, thereby give material new characteristic, to satisfy the needs of different purposes.For this reason, numerous scientific research personnel and mechanism drop into a large amount of financial resources and material resources, inorganic filler-toughened modification problem is carried out exploratory development, in the hope of when guaranteeing to improve PVC material shock resistance, do not reduce its tensile strength, rigidity, processing fluidity and heat-drawn wire, even improve these performances.
The disclosed polyvinyl chloride of prior art strengthens plasticized modifier, and basal component includes polyvinyl chloride (PVC) RESINS, inorganic nano-filler and auxiliary agent three parts.Inorganic nano-filler is often selected lime carbonate, the mineral filler of silicon-dioxide isopolarity for use.Because the nanoparticle specific surface area is big, the surface energy height, surfactivity is big, is easy to form coacervate, adds to disperse inhomogeneously in the resin, and aggregate forms focal point of stress easily, does not reach to strengthen toughness reinforcing effect.For nanoparticle is dispersed in the polyvinyl chloride (PVC) RESINS, strengthen interface compatibility, form the good interface clinging power between polyvinyl chloride (PVC) RESINS and the inorganic nano-filler, must adopt appropriate means that modification is carried out on the inorganic nano-filler surface and handle.
Prior art adopts coupling agent to carry out surface modification more.Coupling agent commonly used mainly contains tensio-active agents such as silane coupling agent, titanate coupling agent, aluminate coupling agent and lipid acid.Usually contain a few class character group different in the molecule of coupling agent, can be used for improving the consistency between inorganic nano-filler and the polymkeric substance, strengthen the interfacial interaction of filling compound system with effect.Also can adopt coating technology that inorganic nano-filler is carried out surface modification, promptly utilize the organic or inorganic thing at inorganic nano-particle surface deposition one deck coating layer, to change its surface properties.Also can adopt the mechanochemical reaction modification in addition, promptly in the physical pulverization process, utilize the effect of mechanical stress that particle surface is activated, changing its surface crystal structure and physical chemistry structure, thereby reach the purpose of surface modification.
More than several the methods that modification is handled are carried out on the inorganic nano-filler surface, can improve polyvinyl chloride (PVC) RESINS to a certain extent and combine with the interface of inorganic nano-filler, the properties-correcting agent that makes can be used for the preparation of matrix material.But complex procedures, and the dispersion effect of nanometer aggregate is bad, the active inorganic nano-filler in the properties-correcting agent is limited to the modified effect of matrix resin, and is not obvious to the intensity of polyvinyl chloride, tough property improvement.
Three, summary of the invention
The present invention is directed to the deficiency of the existing modification technology of inorganic nano-particle and proposed a kind of polyvinyl chloride enhancing plasticized modifier by power chemical treatment preparation, and disclose the preparation method of this properties-correcting agent, and the polyvinyl chloride nano matrix material of using this properties-correcting agent preparation.
Polyvinyl chloride disclosed in this invention strengthens plasticized modifier, is to make after the power chemical treatment by being equipped with good polyvinyl chloride (PVC) RESINS, inorganic nano-filler and auxiliary agent.
The power chemical treatment can be vibration, also can be the pure mill of high velocity air powder, preferred vibration.In the chemically treated process of power, mechanical force such as the impact that the resonance mill between inorganic nano-filler and the polymkeric substance produces, shearing, friction, the inorganic nano-particle aggregate is disperseed, crystalline network, crystal formation etc. change, can increase in the system, temperature raises, and impels that particle melts, thermolysis, generation radical or ion, has strengthened the inorganic nano-particle surfactivity; And resin under the impact of bead, is not to rupture immediately owing to have toughness preferably, but the stress relaxation of going ahead of the rest, the back produces distortion, and splitting of chain takes place then, forms free radical.The result of power chemical action has caused the inorganic nano-particle physical adsorption or has been grafted on resin surface.The power chemical treatment has the advantages that ultra-fine dispersion of inorganic nano-particle aggregate and inorganic nano-particle surface modification are united two into one, and has therefore simplified production technique greatly, has reduced the production cost of properties-correcting agent.
Adopt the polyvinyl chloride of mechanochemical method preparation to strengthen plasticized modifier, its component auxiliary agent generally includes coupling agent, and stablizer has better effect in order to make auxiliary agent, generally also contains dispersion agent.The preferred version of the material component of properties-correcting agent, its essentially consist comprises: polyvinyl chloride (PVC) RESINS, inorganic nano-filler, coupling agent, stablizer, dispersion agent.The consumption of polyvinyl chloride (PVC) RESINS is the 15-85% (weight) of polyvinyl chloride (PVC) RESINS and the total consumption of inorganic nano-filler; The consumption of inorganic nano-filler is the 15-85% (weight) of polyvinyl chloride (PVC) RESINS and the total consumption of inorganic nano-filler; The consumption of coupling agent is the 0.5-2.0% (weight) of inorganic nano-filler consumption, and the consumption of stablizer is the 3.0-10% (weight) of used for polyvinyl-chloride resin amount; The consumption of dispersion agent is the 10-20% (weight) of material total amount.
The polyvinyl chloride (PVC) RESINS that polyvinyl chloride strengthens in the plasticized modifier mainly is that inorganic nano-filler is played dispersion, coating, bonding effect.In the present invention, polyvinyl chloride (PVC) RESINS is except having above effect, and also the effect at the power chemistry issues subchain fracture estranged, causes that molecular weight reduces, formation has the lower molecular weight polyvinyl chloride of self-plasticization function, thereby has improved the processing fluidity of polyvinyl chloride composite materials.Simultaneously, molecular chain generation part crosslinking reaction.Little crosslinking structure that crosslinking reaction causes helps to improve resistance to impact shock and other performance of filling matrix resin again.
Filler among the present invention mainly is an inorganic nano-filler, as nanometer grade calcium carbonate talcum, barite, kaolin and silicon-dioxide etc.The particle dia of inorganic nano-filler is 10nm-100nm.Inorganic nano-filler is filled the performances such as mechanical property, heat resisting temperature and dimensional stability that matrix resin can obviously improve matrix resin.Absorb airborne moisture because polar group is contained on the inorganic nano-filler surface easily, therefore before using mineral filler, mineral filler must be carried out drying treatment.
The coupling agent that adopts among the present invention is selected from silane, titanic acid ester, aluminic acid ester, tensio-active agent and lipid acid.Can be wherein a kind of, also can be wherein two or more.The polar group generation surface infiltration on the water-wet side of coupling agent and Nano filling top layer and chemical bonding effect, make the good phase interface bounding force of formation between polyvinyl chloride (PVC) RESINS and the inorganic nano-filler, played coupling agent and inorganic nano-filler has been carried out the effect of surface modification.
The stablizer that adopts among the present invention is selected from organic tin, one package stabilizer etc.Function of stabilizer is to prevent in the vibration treating processes polyvinyl chloride thermolysis, the degraded of rising and causing owing to temperature, and then causes the reduction of material use properties.
The dispersion agent that adopts among the present invention is selected from acetone, dehydrated alcohol etc.The effect of dispersion agent is that coupling agent is dispersed in the material; Simultaneously, in the vibration process, play the effect of cooling, heat radiation.
Polyvinyl chloride disclosed by the invention strengthens plasticized modifier, its preparation method is earlier by to certainty ratio coupling agent being dissolved in the dispersion agent, again dispersion agent and polyvinyl chloride (PVC) RESINS, stablizer and inorganic nano-filler are mixed, afterwards the material that mixes is carried out the power chemical treatment.The power chemical treatment method has methods such as mechanical vibration, high velocity air pulverising mill, preferentially selects mechanical vibration power chemical treatment method, is about to the good material of compounding and adds in the vibratory milling device, and the steel ball in the vibration device and the mass ratio of material are 10-15: 1.
With the polyvinyl chloride nano matrix material of above-mentioned properties-correcting agent and the preparation of matrix polyvinyl chloride (PVC) RESINS, the consumption of properties-correcting agent is 3.0-10% (weight) in matrix material, and the consumption of polyvinyl chloride (PVC) RESINS is 90-97% (weight).Polyvinyl chloride enhancing plasticized modifier with the present invention's preparation joins in the polyvinyl chloride (PVC) RESINS, can significantly improve the resistance to impact shock and the tensile strength of polyvinyl chloride.The contriver adopts the matrix material test specimen impact fracture of scanning electronic microscope observation with the present invention's preparation, find that clearly inorganic nano-particle is homodisperse between polyvinyl chloride external phase, consistency is good, has formed firm interfacial adhesion, and inorganic nano-particle is wrapped in the polyvinyl chloride.
The polyvinyl chloride that the invention provides a kind of novelty strengthens the power chemical preparation technology of plasticized modifier, properties-correcting agent is in preparation process, polyvinyl chloride (PVC) RESINS and inorganic nano-particle aggregate are under the effect of power chemistry, generate living radical and active ion, free radical grafting reaction and physical adsorption take place, inorganic nano-particle is dispersed in the polyvinyl chloride (PVC) RESINS, and form good phase interface bounding force between the polyvinyl chloride (PVC) RESINS, played the inorganic nano-particle aggregate is disperseed and inorganic nano-particle carried out the effect of surface modification, directly inorganic nano-particle is carried out surface modification with elder generation with coupling agent, and then add method filling-modified in the polyvinyl chloride to and compare, the method applied in the present invention is simple to operate, it is more obvious for shock resistance and the tensile property effect of improving polyvinyl chloride matrix resin that low cost of manufacture, the polyvinyl chloride of preparation strengthen plasticized modifier.
Polyvinyl chloride of the present invention strengthens the plasticized modifier technology; mechanical property and processing characteristicies such as intensity with the polyvinyl chloride composite materials of properties-correcting agent provided by the invention preparation, toughness have not only been improved effectively; and in the production process of properties-correcting agent; saved the employed all kinds of SOLVENTS of prior art; protected environment; also simplify production technique simultaneously greatly, reduced product cost.These positively effects that the present invention is obtained all are because the present invention has implemented the result that the power chemical treatment is brought to the material component of properties-correcting agent.By implementing the thought that the power chemical treatment prepares polyvinylchloride modifier, is main inventive point of the present invention to the material component of properties-correcting agent, also is the maximum contribution that the present invention makes the polyvinylchloride modifier technology, also is the place that the applicant seeks to protect.
Four, embodiment
Embodiment 1
Adopt SG-5 type polyvinyl chloride (PVC) RESINS, the silicon-dioxide of median size 15nm is as inorganic nano-filler, and the weight ratio of polyvinyl chloride and nano silicon is 60/40.Coupling agent is selected silane coupling agent for use, and dehydrated alcohol is a dispersion agent.Stablizer is selected thiol organotin for use.The consumption of coupling agent is 1% (weight) of nano silicon consumption, and the consumption of stablizer organotin is 3% (weight) of used for polyvinyl-chloride resin amount.Nanometer SiO
2Dry earlier, be mixed together evenly standby with polyvinyl chloride, stablizer then.According to above proportioning, coupling agent is disperseed with dehydrated alcohol, and pour this solution the compound of polyvinyl chloride (PVC) RESINS, inorganic nano-particle and stablizer into, mix.Carry out vibration in the material adding vibromill that compounding is good.The material in the vibromill and the weight ratio of steel ball are 1: 15, and the control rotating speed is at 900rpm.Make polyvinyl chloride through abundant vibration reaction and strengthen plasticized modifier 1.The polyvinyl chloride of preparation is strengthened plasticized modifier 13 parts of polyvinyl chloride (PVC) RESINS blend with parts by weight 97 by weight, make matrix material.As can be seen, polyvinyl chloride strengthens plasticized modifier 1 and has significantly improved impact resistance of polyvinyl chloride and tensile strength from subordinate list.
Embodiment 2
Adopt SG-5 type polyvinyl chloride (PVC) RESINS, the lime carbonate of median size 60nm is as inorganic nano-filler, and the weight ratio of polyvinyl chloride and nano-calcium carbonate is 20/80.Coupling agent is selected titanate coupling agent for use, and dehydrated alcohol is a dispersion agent.Stablizer is selected thiol organotin for use.The consumption of coupling agent is 1% of a nano-calcium carbonate consumption, and the consumption of stablizer organotin is 3% of a used for polyvinyl-chloride resin amount.Distribution is with embodiment 1.Carry out vibration in the material adding vibromill that compounding is good.The material of vibromill and the weight ratio of steel ball are 1: 15, and the control rotating speed is at 900rpm.Make polyvinyl chloride through abundant vibration reaction and strengthen plasticized modifier 2.The polyvinyl chloride of preparation is strengthened plasticized modifier 28 parts of polyvinyl chloride (PVC) RESINS blend with parts by weight 92 by weight, make matrix material.As can be seen, polyvinyl chloride strengthens the tensile strength that plasticized modifier 2 has significantly improved polyvinyl chloride composite materials from subordinate list.
Embodiment 3
Adopt SG-5 type polyvinyl chloride (PVC) RESINS, the lime carbonate of median size 60nm is as inorganic nano-filler, and the weight ratio of polyvinyl chloride and nano-calcium carbonate is 40/60.Coupling agent is selected titanate coupling agent for use, and dehydrated alcohol is a dispersion agent.Stablizer is selected thiol organotin for use.The consumption of coupling agent is 1% of a nano-calcium carbonate consumption, and the consumption of stablizer organotin is 3% of a used for polyvinyl-chloride resin amount.Distribution is with embodiment 1.Carry out vibration in the material adding vibromill that compounding is good, the material of vibromill and the weight ratio of steel ball are 1: 15, and the control rotating speed is at 900rpm.Make polyvinyl chloride through abundant vibration reaction and strengthen plasticized modifier 3.The polyvinyl chloride of preparation is strengthened plasticized modifier 38 parts of polyvinyl chloride (PVC) RESINS blend with parts by weight 92 by weight, make matrix material.As can be seen, polyvinyl chloride strengthens plasticized modifier 3 and has significantly improved impact resistance of polyvinyl chloride and tensile strength from subordinate list.
Embodiment 4
Adopt SG-5 type polyvinyl chloride (PVC) RESINS, the lime carbonate of median size 60nm is as inorganic nano-filler, and the weight ratio of polyvinyl chloride and nano-calcium carbonate is 60/40.Coupling agent is selected titanate coupling agent for use, and dehydrated alcohol is a dispersion agent.Stablizer is selected thiol organotin for use.The consumption of coupling agent is 1% of a nano-calcium carbonate consumption, and the consumption of stablizer organotin is 3% of a used for polyvinyl-chloride resin amount.Distribution is with embodiment 1.Carry out vibration in the material adding vibromill that compounding is good, the material of vibromill and the weight ratio of steel ball are 1: 15, and the control rotating speed is at 900rpm.Make polyvinyl chloride through abundant vibration reaction and strengthen plasticized modifier 4.The polyvinyl chloride of preparation is strengthened plasticized modifier 48 parts of polyvinyl chloride (PVC) RESINS blend with parts by weight 92 by weight, make matrix material.As can be seen, polyvinyl chloride strengthens plasticized modifier 4 and has significantly improved impact resistance of polyvinyl chloride and tensile strength from subordinate list.
Embodiment 5
Adopt SG-5 type polyvinyl chloride (PVC) RESINS, the lime carbonate of median size 60nm is as inorganic nano-filler, and the weight ratio of polyvinyl chloride and nano-calcium carbonate is 20/80.Coupling agent is selected titanate coupling agent for use, and dehydrated alcohol is a dispersion agent.Stablizer is selected the lead salt one package stabilizer for use.The consumption of coupling agent is 1% of a nano-calcium carbonate consumption, and the consumption of stablizer organotin is 3% of a used for polyvinyl-chloride resin amount.Distribution is with embodiment 1.Carry out vibration in the material adding vibromill that compounding is good, the material of vibromill and the weight ratio of steel ball are 1: 15, and the control rotating speed is at 900rpm.Make polyvinyl chloride through abundant vibration reaction and strengthen plasticized modifier 5.The polyvinyl chloride of preparation is strengthened plasticized modifier 5 10 parts of polyvinyl chloride (PVC) RESINS blend with parts by weight 90 by weight, make matrix material.As can be seen, polyvinyl chloride strengthens plasticized modifier 5 and has significantly improved impact resistance of polyvinyl chloride, does not influence its tensile strength from subordinate list.
Embodiment 6
Adopt SG-5 type polyvinyl chloride (PVC) RESINS, the lime carbonate of median size 60nm is as inorganic nano-filler, and the weight ratio of polyvinyl chloride and nano-calcium carbonate is 30/70.Coupling agent is selected titanate coupling agent for use, and dehydrated alcohol is a dispersion agent.Stablizer is selected the lead salt one package stabilizer for use.The consumption of coupling agent is 1% of a nano-calcium carbonate consumption, and the consumption of stablizer organotin is 3% of a used for polyvinyl-chloride resin amount.Distribution is with embodiment 1.Carry out vibration in the material adding vibromill that compounding is good, the material of vibromill and the weight ratio of steel ball are 1: 15, and the control rotating speed is at 900rpm.Make polyvinyl chloride through abundant vibration reaction and strengthen plasticized modifier 6.The polyvinyl chloride of preparation is strengthened plasticized modifier 68 parts of polyvinyl chloride (PVC) RESINS blend with parts by weight 92 by weight, make matrix material.As can be seen, polyvinyl chloride strengthens plasticized modifier 6 and has significantly improved the polyvinyl chloride composite materials shock resistance from subordinate list, and tensile strength slightly improves.
Embodiment 7
Adopt SG-5 type polyvinyl chloride (PVC) RESINS, the lime carbonate of median size 60nm is as inorganic nano-filler, and the weight ratio of polyvinyl chloride and nano-calcium carbonate is 40/60.Coupling agent is selected titanate coupling agent for use, and dehydrated alcohol is a dispersion agent.Stablizer is selected the lead salt one package stabilizer for use.The consumption of coupling agent is 1% of a nano-calcium carbonate consumption, and the consumption of stablizer organotin is 3% of a used for polyvinyl-chloride resin amount.Distribution is with embodiment 1.Carry out vibration in the material adding vibromill that compounding is good, the material of vibromill and the weight ratio of steel ball are 1: 15, and the control rotating speed is at 900rpm.Make polyvinyl chloride through abundant vibration reaction and strengthen plasticized modifier 7.The polyvinyl chloride of preparation is strengthened plasticized modifier 75 parts of polyvinyl chloride (PVC) RESINS blend with parts by weight 95 by weight, make matrix material.As can be seen, polyvinyl chloride strengthens plasticized modifier 7 and has significantly improved impact resistance of polyvinyl chloride and tensile strength from subordinate list.
Embodiment 8
Adopt SG-5 type polyvinyl chloride (PVC) RESINS, the lime carbonate of median size 60nm is as inorganic nano-filler, and the weight ratio of polyvinyl chloride and nano-calcium carbonate is 50/50.Coupling agent is selected titanate coupling agent for use, and dehydrated alcohol is a dispersion agent.Stablizer is selected the lead salt one package stabilizer for use.The consumption of coupling agent is 1% of a nano-calcium carbonate consumption, and the consumption of stablizer organotin is 3% of a used for polyvinyl-chloride resin amount.Distribution is with embodiment 1.Carry out vibration in the material adding vibromill that compounding is good, the material of vibromill and the weight ratio of steel ball are 1: 15, and the control rotating speed is at 900rpm.Make polyvinyl chloride and strengthen plasticized modifier 8.The polyvinyl chloride of preparation is strengthened plasticized modifier 88 parts of polyvinyl chloride (PVC) RESINS blend with parts by weight 92 by weight, make matrix material.As can be seen, polyvinyl chloride strengthens plasticized modifier 8 and has significantly improved impact resistance of polyvinyl chloride and tensile strength from subordinate list.
Embodiment 9
Adopt SG-5 type polyvinyl chloride (PVC) RESINS, the lime carbonate of median size 60nm is as inorganic nano-filler, and the weight ratio of polyvinyl chloride and nano-calcium carbonate is 80/20.Coupling agent is selected titanate coupling agent for use, and dehydrated alcohol is a dispersion agent.Stablizer is selected the lead salt one package stabilizer for use.The consumption of coupling agent is 1% of a nano-calcium carbonate consumption, and the consumption of stablizer organotin is 3% of a used for polyvinyl-chloride resin amount.Distribution is with embodiment 1.Carry out vibration in the material adding vibromill that compounding is good, the material of vibromill and the weight ratio of steel ball are 1: 15, and the control rotating speed is at 900rpm.Make polyvinyl chloride through abundant vibration reaction and strengthen plasticized modifier 9.The polyvinyl chloride of preparation is strengthened plasticized modifier 9 10 parts of polyvinyl chloride (PVC) RESINS blend with parts by weight 90 by weight, make matrix material.As can be seen, polyvinyl chloride strengthens plasticized modifier 9 and has significantly improved impact resistance of polyvinyl chloride and tensile strength from subordinate list.
The power chemical modification compares properties-correcting agent shock strength (J/m) tensile strength (MPa) PVC 54.9 53.8 coupling agent treatment SiO to the influence of polyvinyl chloride composite materials mechanical property
234.0 60.8 CaCO that are untreated
360.8 49.6 modifier, 1 59.6 63.1 modifier, 2 67.6 60.9 modifier, 3 72.4 61.0 modifier, 4 85.0 60.3 modifier, 5 73.1 53.8 modifier, 6 87.2 54.6 modifier, 7 82.8 56.1 modifier, 8 80.4 59.2 modifier 9 69.6 54.8
Claims (10)
1, a kind of polyvinyl chloride strengthens plasticized modifier, and basal component comprises polyvinyl chloride (PVC) RESINS, inorganic nano-filler and auxiliary agent, it is characterized in that the good component materials of compounding is through the exertin chemical treatment.
2, polyvinyl chloride as claimed in claim 1 strengthens plasticized modifier, it is characterized in that described auxiliary agent comprises coupling agent, stablizer and dispersion agent.
3, polyvinyl chloride as claimed in claim 2 strengthens plasticized modifier, the consumption that it is characterized in that polyvinyl chloride (PVC) RESINS is the 15-85% (weight) of polyvinyl chloride (PVC) RESINS and inorganic nano-particle filler total amount, the consumption of inorganic nano-filler is the 15-85% (weight) of polyvinyl chloride (PVC) RESINS and the total consumption of inorganic nano-filler, the consumption of coupling agent is the 0.5-2.0% (weight) of inorganic nano-filler, the consumption of stablizer is the 3.0-10% (weight) of used for polyvinyl-chloride resin amount, and the consumption of dispersion agent is the 10-20% (weight) of material total amount.
4, strengthen plasticized modifier as claim 1 or 2 or 3 described polyvinyl chloride, it is characterized in that inorganic nano level filler is that median size is the inorganic particulate of 10nm-100nm, inorganic nano-particle is selected from nanometer grade calcium carbonate, talcum, barite, kaolin and silicon-dioxide.
5, strengthen plasticized modifier as claim 2 or 3 described polyvinyl chloride, it is characterized in that coupling agent is selected from titanic acid ester, aluminic acid ester, silane, tensio-active agent and lipid acid.
6, strengthen plasticized modifier as claim 2 or 3 described polyvinyl chloride, it is characterized in that stablizer is selected from organic tin, one package stabilizer.
7, strengthen plasticized modifier as claim 2 or 3 described polyvinyl chloride, it is characterized in that dispersion agent is selected from acetone, dehydrated alcohol.
8, the arbitrary polyvinyl chloride in the claim 1 to 7 strengthens the preparation method of plasticized modifier, after it is characterized in that coupling agent being disperseed with dispersion agent in given ratio, mix with polyvinyl chloride (PVC) RESINS, inorganic nano level filler and stablizer again, afterwards the material that mixes is carried out the power chemical treatment, the inorganic nano-particle aggregate is disperseed, polyvinyl chloride (PVC) RESINS generation splitting of chain, polyvinyl chloride (PVC) RESINS and inorganic nano-particle produce physical adsorption and chemical graft.
9, polyvinyl chloride as claimed in claim 8 strengthens the preparation method of plasticized modifier, it is characterized in that the material that mixes is inserted in the vibration mill device mode with vibration carries out the power chemical treatment, after fully vibration is reacted, promptly make polyvinyl chloride and strengthen plasticized modifier, the steel ball in the vibration device and the mass ratio of material are 10-15: 1.
10, strengthen the polyvinyl chloride nano matrix material of plasticized modifier preparation with the arbitrary polyvinyl chloride in the claim 1 to 7, the consumption that it is characterized in that properties-correcting agent in the matrix material is 3.0-10% (weight), the consumption of polyvinyl chloride (PVC) RESINS is 90-97% (weight), the component materials that proportioning is good is fully mediated in kneader, extrudes then to make in forcing machine.
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