CN105153650A - Combination pump impeller and making method thereof - Google Patents
Combination pump impeller and making method thereof Download PDFInfo
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- CN105153650A CN105153650A CN201510411858.1A CN201510411858A CN105153650A CN 105153650 A CN105153650 A CN 105153650A CN 201510411858 A CN201510411858 A CN 201510411858A CN 105153650 A CN105153650 A CN 105153650A
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Abstract
The invention relates to a combination pump impeller and a making method thereof. The combination pump impeller comprises an engineering plastic substrate formed by using polyester fibers, an elastomer formed by using a thermoplastic polymer, and a compatilizer, the compatilizer interpenetrates through the engineering plastic substrate to carry out polymerization in order to form a high-strength composite netted structure, the engineering plastic substrate is polytrimethylene terephthalate, the elastomer is selected from one or two of a thermoplastic polyester elastomer and a polyolefin elastomer, and the compatilizer is an ethylene-vinyl acetate copolymer, so the combination pump impeller has high mechanical strength and good stability, and effectively solves the electrochemical corrosion problem.
Description
Technical field
The present invention relates to a kind of matrix material, specifically, is a kind of high-strength composite pump impeller and manufacture method thereof of being applicable to manufacture impeller of sea water pump.
Background technology
Water pump is a kind of rotating machinery being used for pumping various different liqs, the operating reliability of water pump and work-ing life to a certain extent with by the liquid medium pumped to water pump overcurrent impeller the extent of corrosion that adopts relevant, but correctly to accomplish that the material selecting water pump impeller is very difficult.Especially the material of impeller of sea water pump, more can run into many difficulties.As the ideal material of impeller of sea water pump, not only should have very high corrosion resistance, but also very good casting manufacturability and machining property should be had.In addition, it also should have certain availability and economy.
Factor main as follows should be considered: the economy etc. of impeller material physical strength, corrosion resistance nature, electrochemical corrosion resistant intensity, sherardizing steel performance and material when selecting water pump impeller manufactured materials.Consider the specific works condition of sea-water pump, seawater is a kind of corrosive medium, all have corrodibility, and corrosion speed is also larger to most of alloy and metal.Simultaneously, seawater is the electrolytic solution with certain electroconductibility, when different metals or alloy contact in the seawater, because metal or alloy have different electropotentials in the seawater, the effect of primary cell will be produced, thus the metal making electropotential lower or alloy produce dissolving, so should be specifically noted that above-mentioned erosion resistance and the characteristic of electrochemical corrosion resistant in the seawater.
Generally, the material that the impeller of water pump adopts is by several as follows: 1, cast iron, because of abundance of originating, low price and be employed in the preparation of water pump, but, in actual applications, cast iron (involved is general cast iron here, do not comprise some cast alloy iron) as the pump impeller material directly pumping seawater, there is certain use limitation, found the corrosion phenomena that CAST IRON SEAWATER pump and cast iron impeller material produce and adverse consequences after investigating in sea water corrosion test and to coastal waters and oceangoing vessel, 2, steel and stainless steel, also the material as impeller of sea water pump is frequently used to, especially stainless steel, wherein, formula body stainless steel difficult to understand corrosion in the seawater very faint, even if also demonstrate good solidity to corrosion under conditions of high flow rate, but steel and stainless utilization are also subject to certain restrictions, except some stainless price problem, also have other some reasons, as for castability, the technics comparing of cast steel is complicated, for the part that some structural shape is comparatively complicated, cast steel cannot complete, in addition, Monel metal be acknowledged as at present as corrosion resistant material, but for impeller shaping of complicated shape, condemnation factor is quite high, 3, copper alloy, the pump case of existing a lot of sea-water pump and impeller brass alloys and bell metal are prepared from, these above-mentioned materials have good work-ing life and mechanical property, but other metallic element a lot of must be added as tin, zinc, lead, nickel, chromium etc. in brass alloys or bell metal, must consider whether it can produce strong potential corrosion problem in this electrolytic solution of seawater, 4, plastics, as everyone knows, a lot of plastics are had to have very excellent corrosion resistance and stability in the seawater, the water pump impeller for pumping the corrosive liquid comprising seawater is manufactured with plastics replacement metal, bring great economical effectiveness not only can to the manufacture of pump, and the behaviour in service index of pump can be made to improve.In general the major advantage of plastics is that quality is light, has superior chemical stability and machine-shaping property, compares metal and have better corrosion resistance nature, but the intensity of general plastics is not as good as metal, affects its result of use.Existing nylon plastic (polyamide-based plastics) makes pump impeller peculiar to vessel, but its intensity and some metallographic phase are than still having a certain distance.
Summary of the invention
Main purpose of the present invention is to provide a kind of combination pump impeller and manufacture method thereof, and it has high mechanical strength and satisfactory stability performance, effectively solves galvanic corrosion problems, thus significantly improves the durability of combination pump impeller.
Another object of the present invention is to provide a kind of combination pump impeller and manufacture method thereof, it is applicable to impeller of sea water pump, traditional metal alloy is replaced by plastics composite, the corrosion resistance nature of impeller material, electrochemical corrosion resistant intensity and sherardizing steel performance are improved, effectively prevents pump impeller to be corroded in corrosive Seawater.
Another object of the present invention is to provide a kind of combination pump impeller and manufacture method thereof, its engineering plastics matrix formed by ethylene-vinyl acetate copolymer (EVA) polymeric polyester fibrid and the elastomerics that formed of thermoplastic polymer, make whole system have high physical strength and satisfactory stability in the seawater.
Another object of the present invention is to provide a kind of combination pump impeller and manufacture method thereof, it introduces nano-filled dose with the paradigmatic structure of strengthening material, improves modulus in flexure and the robustness of product.
Another object of the present invention is to provide a kind of combination pump impeller and manufacture method thereof, thermoplastic polyester elastomer (TPEE), polyolefin elastomer (POE) intert at Poly(Trimethylene Terephthalate) (PTT) middle formation reticulated structure by ethylene-vinyl acetate copolymer by it, thus obtain stable structure system, meanwhile, ethylene-vinyl acetate copolymer also can improve the toughness of combination pump impeller.
For reaching above object, combination pump impeller provided by the invention comprises the engineering plastics matrix that polyester fiber is formed; The elastomerics that thermoplastic polymer is formed; And compatilizer, described elastomerics is interspersed in the composite mesh structure forming high strength in described engineering plastics matrix for polymerization by described compatilizer, wherein, described engineering plastics matrix is Poly(Trimethylene Terephthalate), what described elastomerics was chosen is in thermoplastic polyester elastomer, polyolefin elastomer one or both, described compatilizer is ethylene-vinyl acetate copolymer.
According to embodiments of the invention, described combination pump impeller comprises auxiliary and assisted reaction agent further, described auxiliary is for the paradigmatic structure of assisted and strengthened described combination pump impeller, described assisted reaction agent is for being compound in by described auxiliary in described engineering plastics matrix and described elastomerics, wherein, described auxiliary is nano-filled dose, and described assisted reaction agent is methacryloxypropyl silane and titanate coupling agent.
According to embodiments of the invention, described nano-filled dose choose be nanoclay, nano-calcium carbonate, nano silicon, nano-aluminium oxide, nano zine oxide nano titanium oxide one or more.
According to embodiments of the invention, the mixture of described nano-filled dose of selection nano zine oxide and nano titanium oxide, the blending ratio of described nano zine oxide and nano titanium oxide is 1: 2.
According to embodiments of the invention, described combination pump impeller comprises additives further, for strengthening the stability of described combination pump impeller, structural strength and use properties, one or more of what described additives were chosen is stablizer, softening agent and stablizer, wherein, described stablizer is polycarboimide(PCD) stablizer, and described softening agent is diisononyl adipate, and described anti-aging agent is nickel dibutyl dithiocarbamate.
According to embodiments of the invention, the material composition composition of described combination pump impeller, counts: Poly(Trimethylene Terephthalate) is 10 ~ 70 parts by weight; Thermoplastic polyester elastomer is 0 ~ 35 part; Polyolefin elastomer is 0 ~ 30 part; Ethylene-vinyl acetate copolymer is 1 ~ 15 part; Methacryloxypropyl silane is 0 ~ 5 part; Nano-filled dose is 0 ~ 15 part; Titanate coupling agent is 0 ~ 5 part; Softening agent is 0 ~ 5 part; Stablizer 0 ~ 2 part; And 0 ~ 2 part, anti-aging agent.
According to embodiments of the invention, the material composition composition of described combination pump impeller, counts: Poly(Trimethylene Terephthalate) is 30 ~ 50 parts by weight; Thermoplastic polyester elastomer is 20 ~ 35 parts; Polyolefin elastomer is 15 ~ 30 parts; Ethylene-vinyl acetate copolymer is 3 ~ 8 parts; Methacryloxypropyl silane is 1 ~ 3 part; Nano-filled dose is 4 ~ 12 parts; Titanate coupling agent is 1 ~ 4 part; Softening agent is 1 ~ 4 part; Stablizer 0.5 ~ 1 part; And 0.5 ~ 1 part, anti-aging agent.
The manufacture method of combination pump impeller, it comprises step:
(a) by engineering plastics matrix, elastomerics dispersing and mixing in compatilizer, obtain substrate mixture, wherein, described engineering plastics matrix is Poly(Trimethylene Terephthalate), what described elastomerics was chosen is in thermoplastic polyester elastomer, polyolefin elastomer one or both, described compatilizer is ethylene-vinyl acetate copolymer;
(b) modification auxiliary, described auxiliary is nano-filled dose, and linked reaction is occurred for titanate coupling agent and nano-filled dose, makes described nano-filled dose to be coated in described titanate coupling agent, obtains auxiliary mixture;
C () is introduced and is assisted mixture and additives in described substrate mixture, obtain mixture by graft polymerization reaction heating; And
D described mixture melt extrudes by (), and obtain combination pump impeller by injection moulding.
Wherein, described step (b) comprises step further:
(b.1) nano-filled dose of pre-treatment, is dissolved in the titanate coupling agent of respective quality in a small amount of toluene solvant, and nano-filled dose that adds respective quality part is at room temperature stirred 10-30min;
(b.2) be warming up to 90 DEG C, continue to stir 30min, make titanate coupling agent and nano-filled dose that coupled action occur; And
(b.3) remove unnecessary solvent and by nano-filled dose of coated for coupling agent drying, obtain described auxiliary mixture.
Wherein, described auxiliary mixture be nano-filled dose is carried out chemistry modification coated, the elastomerics that the described nano-filled dose of engineering plastics matrix and described two kinds of thermoplastic polyester elastomers formed with described Poly(Trimethylene Terephthalate) and polyolefin elastomer are formed has better compatible role, titanate coupling agent has undersaturated double bond and can carry out graft reaction with described elastomerics, and after being conducive to modification nano-filled dose is dispersed in described substrate mixture.
Wherein, described step (d) comprises step:
(d.1) described mixture is added in twin screw extruder carry out melt blending, extrude, cool and granulation, obtain composite plastic particle; And
(d.2) described composite plastic particle is added injection moulding machine, send to injection molding machine nozzle through injection moulding rotary screw, and carry out pressurize, form described combination pump impeller, be applicable in impeller of sea water pump.
Wherein, in the manufacture method of described combination pump impeller, comprise the steps:
I () will put in high-speed mixer with Poly(Trimethylene Terephthalate), thermoplastic polyester elastomer, polyolefin elastomer, ethylene-vinyl acetate copolymer and methacryloxypropyl silane by proportioning, 900 ~ 1000 revs/min are stirred 5 ~ 10min, obtain described substrate mixture;
(ii) described substrate mixture is heated to 70 ~ 80 DEG C, adds the described auxiliary mixture of respective quality part, softening agent, anti-aging agent and stablizer, continue stirring 10 ~ 20min, obtain described mixture;
(iii) described mixture is added in twin screw extruder carry out melt blending, extrude, cool, granulation, the blending extrusion temperature of twin screw extruder is: 170 ~ 180 DEG C, a district, two 180 ~ 190 DEG C, districts, three 190 ~ 200 DEG C, districts, four 200 ~ 210 DEG C, districts, five 210 ~ 220 DEG C, districts, head 210 ~ 230 DEG C; Screw speed 180 ~ 220r/min, obtains described composite plastic particle; And
(iv) described plastic pellet is added injection moulding machine, send to injection molding machine nozzle through injection moulding rotary screw, wherein, described screw speed is 80 ~ 120r/min, nozzle temperature is arranged on 250 ~ 280 DEG C, and injection pressure is 70 ~ 80Mpa, and carries out pressurize, dwell time is 45 ~ 50 seconds, the shaping combination pump impeller preparing high strength.
Embodiment
Below describe and realize the present invention for disclosing the present invention to enable those skilled in the art.Preferred embodiment in below describing only as an example, it may occur to persons skilled in the art that other apparent modification.
Combination pump impeller of the present invention comprises the engineering plastics matrix that polyester fiber is formed; The elastomerics that thermoplastic polymer is formed; And compatilizer, described elastomerics is interspersed in described engineering plastics matrix and forms high strength ground composite mesh structure for polymerization by described compatilizer, wherein, described engineering plastics matrix is Poly(Trimethylene Terephthalate) (PTT), what described elastomerics was chosen is in thermoplastic polyester elastomer (TPEE), polyolefin elastomer (POE) one or both, described compatilizer is ethylene-vinyl acetate copolymer (EVA).
Wherein, described Poly(Trimethylene Terephthalate) (PTT) is a kind of polyester tencel of excellent performance, is able to be formed by terephthalic acid (PTA) and 1,3-PD (PDO) polycondensation.Main chain is the saturated linear molecular composition that rigidity phenyl ring and flexible fatty alcohol couple together by each repeating unit, the height geometrical regularity of molecule and rigid element make whole system have high physical strength, outstanding chemical reagent resistance, thermotolerance, and PTT symmetrical configuration, meet the requirement of closely piling up, be applicable to the engineering plastics matrix as combination pump impeller, met the requirement of strength of pump impeller.
Wherein, described thermoplastic polyester elastomer (TPEE) is the segmented copolymer containing the hard section of polyester and polyester soft segment, wherein polyester soft segment and uncrystallized polyester form the hard section partial crystallization of amorphous phase polyester and form crystalline domains, play physical crosslinking point.TPEE has the elasticity of rubber and the intensity of engineering plastics; Give its elasticity, make it as rubber for soft section; Hard section gives its processing characteristics, makes it as plastics; With rubber phase ratio, it has better processing characteristics and longer work-ing life; Compared with engineering material, there is feature that intensity is high equally, and snappiness and dynamic properties better.TPEE has splendid oil-proofness, at room temperature the most of polar liquid chemical mediator of ability (as acid, alkaloid compound).
Wherein, described polyolefin elastomer (POE) structure is similar to terpolymer EP rubber (EPDM), and therefore POE also can have the excellent properties such as ageing-resistant, resistance to ozone, resistant to chemical media.By being cross-linked POE, the heat resisting temperature of material is enhanced, and tension set reduces, and the Main Mechanical such as tensile strength, tear strength all has significant improvement.
Preferably, what described elastomerics was chosen is thermoplastic polyester elastomer (TPEE) and polyolefin elastomer (POE), by described two kinds of elastomeric synergies, be applicable to improve the described tensile strength of combination pump impeller and the performance of resistance to impact shock.
Wherein, described ethylene-vinyl acetate copolymer (EVA) is nontoxic, tasteless, and grease resistance, acid and alkali corrosion, have higher elasticity and toughness, low temperature performance excellent, also can play the effect of expanding material.Adding of EVA makes PTT, POE and TPEE mechanical property be greatly improved, this is because EVA and PTT, POE and TPEE have good consistency, by ethylene-vinyl acetate copolymer, thermoplastic polyester elastomer (TPEE), polyolefin elastomer (POE) are interted in the middle polymerization of Poly(Trimethylene Terephthalate) (PTT), make three form the structure of interspersed network very well, obtain a kind of stable structure system.In addition, EVA also can improve the toughness of material, and meanwhile, ethylene-vinyl acetate copolymer also can improve the toughness of matrix material, is conducive to the use of combination pump impeller.Thus the engineering plastics matrix formed by ethylene-vinyl acetate copolymer (EVA) polymeric polyester fibrid and the elastomerics that formed of thermoplastic polymer, make whole system have high physical strength and satisfactory stability in the seawater.
Described combination pump impeller comprises auxiliary and assisted reaction agent further, described auxiliary is for the paradigmatic structure of assisted and strengthened described combination pump impeller, described assisted reaction agent is for being compound in by described auxiliary in described engineering plastics matrix and described elastomerics, wherein, described auxiliary is nano-filled dose, described assisted reaction agent is methacryloxypropyl silane and titanate coupling agent, described methacryloxypropyl silane is for nano-filled dose of increase, engineering plastics matrix and elastomeric consistency, described titanate coupling agent is for improving the nano-filled dose of dispersiveness in organic system.
Wherein, described nano-filled dose choose be nanoclay, nano-calcium carbonate, nano silicon, nano-aluminium oxide, nano zine oxide nano titanium oxide one or more.Described nano-filled dose can the paradigmatic structure of strengthening material, improves the performance such as modulus in flexure, robustness, tensile strength, ductility, shear strength, shock resistance, ultimate compression strength of product, also can reduce production cost.
Preferably, the mixture of described nano-filled dose of selection nano zine oxide and nano titanium oxide, the blending ratio of described nano zine oxide and nano titanium oxide is 1: 2.
Wherein, described methacryloxypropyl silane is able to there is consistency better by described nano-filled dose with described engineering plastics matrix and described elastomerics, described nano-filled dose can be made to disperse better in PTT, TPEE and POE simultaneously.Simultaneously, because TPEE hot water resistance is poor, in the present invention will with EVA TPEE, POE interted in PTT, to form reticulated structure time, add its unsaturated site of methacryloxypropyl silane grafting, whole combination pump impeller body cording is made to have satisfactory stability in the seawater, be applicable to impeller of sea water pump, traditional metal alloy is replaced by plastics composite, the corrosion resistance nature of impeller material, electrochemical corrosion resistant intensity and sherardizing steel performance are improved, effectively prevents pump impeller to be corroded in corrosive Seawater.
Wherein, described titanate coupling agent is for thermal plastic polymer and dry filler, there is good coupling effect, titanate coupling agent replaces traditional silane coupling agent in the present invention, interfacial state between effective change inorganics (the present invention refers to nano-filled dose) and organism, improves the dispersiveness of inorganics in organic system and anti-settling.This kind of coupling agent can use general formula: ROO (4-n) Ti (OX-R ' Y) n (n=2,3) to represent; Wherein RO-is hydrolyzable lower alkyloxy, can react, thus reach the object of chemical coupling with mineral surfaces hydroxyl; OX-can be carboxyl, alkoxyl group, sulfonic group, phosphorus base etc., carries out physics or Chemical bond with polymer base-material.Compared with silane series coupling agent, titanate coupling agent price is more cheap, is that coupling agent has again the multiple efficacies such as dispersion agent, adhesive accelerant, curing catalysts, linking agent, rust-preventive agent and fire retardant concurrently.
Described combination pump impeller comprises additives further, for strengthening the stability of described combination pump impeller, structural strength and use properties, one or more of what described additives were chosen is stablizer, softening agent and stablizer, wherein, described stablizer is polycarboimide(PCD) stablizer, for the resistant to hydrolysis performance improving described combination pump impeller, described softening agent is diisononyl adipate, and described anti-aging agent is nickel dibutyl dithiocarbamate.
Described combination pump impeller by Poly(Trimethylene Terephthalate) (PTT), thermoplastic polyester elastomer (TPEE), polyolefin elastomer (POE), ethylene-vinyl acetate copolymer (EVA), methacryloxypropyl silane, nano-filled dose, titanate coupling agent and additives are composited, there is high mechanical strength and satisfactory stability performance, effective solution galvanic corrosion problems, thus significantly improve the durability of combination pump impeller.
The material composition composition of described combination pump impeller, counts: Poly(Trimethylene Terephthalate) (PTT) is 10 ~ 70 parts by weight; Thermoplastic polyester elastomer (TPEE) is 0 ~ 35 part; Polyolefin elastomer (POE) is 0 ~ 30 part; Ethylene-vinyl acetate copolymer (EVA) is 1 ~ 15 part; Methacryloxypropyl silane is 0 ~ 5 part; Nano-filled dose is 0 ~ 15 part; Titanate coupling agent is 0 ~ 5 part; Softening agent is 0 ~ 5 part; Stablizer 0 ~ 2 part; And 0 ~ 2 part, anti-aging agent.
Preferably, the material composition composition of described combination pump impeller, counts: Poly(Trimethylene Terephthalate) (PTT) is 30 ~ 50 parts by weight; Thermoplastic polyester elastomer (TPEE) is 20 ~ 35 parts; Polyolefin elastomer (POE) is 15 ~ 30 parts; Ethylene-vinyl acetate copolymer (EVA) is 3 ~ 8 parts; Methacryloxypropyl silane is 1 ~ 3 part; Nano-filled dose is 4 ~ 12 parts; Titanate coupling agent is 1 ~ 4 part; Softening agent is 1 ~ 4 part; Stablizer 0.5 ~ 1 part; And 0.5 ~ 1 part, anti-aging agent.
That is, a kind of combination pump impeller manufacture method provided by the invention, it comprises step:
(a) by engineering plastics matrix, elastomerics dispersing and mixing in compatilizer, obtain substrate mixture, wherein, described engineering plastics matrix is Poly(Trimethylene Terephthalate), what described elastomerics was chosen is in thermoplastic polyester elastomer, polyolefin elastomer one or both, described compatilizer is ethylene-vinyl acetate copolymer;
(b) modification auxiliary, described auxiliary is nano-filled dose, and linked reaction is occurred for titanate coupling agent and nano-filled dose, makes described nano-filled dose to be coated in described titanate coupling agent, obtains auxiliary mixture;
C () is introduced and is assisted mixture and additives in described substrate mixture, obtain mixture by graft polymerization reaction heating; And
D described mixture melt extrudes by (), and obtain combination pump impeller by injection moulding.
Wherein, described step (b) comprises step further:
(b.1) nano-filled dose of pre-treatment, is dissolved in the titanate coupling agent of respective quality in a small amount of toluene solvant, and nano-filled dose that adds respective quality part is at room temperature stirred 10-30min;
(b.2) be warming up to 90 DEG C, continue to stir 30min, make titanate coupling agent and nano-filled dose that coupled action occur; And
(b.3) remove unnecessary solvent and by nano-filled dose of coated for coupling agent drying, obtain described auxiliary mixture.
Wherein, described step (d) comprises step:
(d.1) described mixture is added in twin screw extruder carry out melt blending, extrude, cool and granulation, obtain composite plastic particle; And
(d.2) described composite plastic particle is added injection moulding machine, send to injection molding machine nozzle through injection moulding rotary screw, and carry out pressurize, form described combination pump impeller, be applicable in impeller of sea water pump.
Wherein, in the manufacture method of described combination pump impeller, comprise the steps:
I () will put in high-speed mixer with Poly(Trimethylene Terephthalate), thermoplastic polyester elastomer, polyolefin elastomer, ethylene-vinyl acetate copolymer and methacryloxypropyl silane by proportioning, 900 ~ 1000 revs/min are stirred 5 ~ 10min, obtain described substrate mixture;
(ii) described substrate mixture is heated to 70 ~ 80 DEG C, adds the described auxiliary mixture of respective quality part, softening agent, anti-aging agent and stablizer, continue stirring 10 ~ 20min, obtain described mixture;
(iii) described mixture is added in twin screw extruder carry out melt blending, extrude, cool, granulation, the blending extrusion temperature of twin screw extruder is: 170 ~ 180 DEG C, a district, two 180 ~ 190 DEG C, districts, three 190 ~ 200 DEG C, districts, four 200 ~ 210 DEG C, districts, five 210 ~ 220 DEG C, districts, head 210 ~ 230 DEG C; Screw speed 180 ~ 220r/min, obtains described composite plastic particle; And
(iv) described plastic pellet is added injection moulding machine, send to injection molding machine nozzle through injection moulding rotary screw, wherein, described screw speed is 80 ~ 120r/min, nozzle temperature is arranged on 250 ~ 280 DEG C, and injection pressure is 70 ~ 80Mpa, and carries out pressurize, dwell time is 45 ~ 50 seconds, the shaping combination pump impeller preparing high strength.
The following is embodiment, embodiment 1
Combination pump impeller material composition forms proportioning:
The manufacture method of described combination pump impeller, comprises the steps:
(1) pre-treatment is carried out by nano-filled dose, the titanate coupling agent of respective quality is dissolved in a small amount of toluene solvant, nano-filled dose that adds respective quality part is at room temperature stirred 10min, be warming up to 90 DEG C, continue to stir 30min, ensure that titanate coupling agent, with nano-filled dose, coupled action occurs, remove unnecessary solvent and by coated for coupling agent nano-filled thing drying, obtain auxiliary mixture;
(2) put in high-speed mixer by proportioning by PTT, POE, TPEE, EVA and methacryloxypropyl silane, 1000 revs/min are stirred 8min, obtain substrate mixture;
(3) described substrate mixture is heated to 70 DEG C, adds the auxiliary mixture of respective quality part, softening agent, anti-aging agent and stablizer, continue to stir 15min, obtain mixture;
(4) described mixture is added in twin screw extruder carry out melt blending, extrude, cool, granulation, the blending extrusion temperature of twin screw extruder is: 170 DEG C, a district, two 180 DEG C, districts, three 190 DEG C, districts, four 205 DEG C, districts, five 210 DEG C, districts, head 220 DEG C; Screw speed 210r/min, obtains composite plastic particle; And
(5) described composite plastic particle is added injection moulding machine, send to injection molding machine nozzle through injection moulding rotary screw (screw speed is: 100r/min), nozzle temperature is arranged on 250 DEG C, injection pressure is: 70Mpa, and carry out pressurize, dwell time is: 45 seconds, forms the combination pump impeller prepared by above-mentioned materials, is applicable to briny environment.
Embodiment 2
Combination pump impeller material composition forms proportioning:
The manufacture method of described combination pump impeller, comprises the steps:
(1) pre-treatment is carried out by nano-filled dose, the titanate coupling agent of respective quality is dissolved in a small amount of toluene solvant, nano-filled dose that adds respective quality part is at room temperature stirred 20min, be warming up to 90 DEG C, continue to stir 30min, ensure that titanate coupling agent, with nano-filled dose, coupled action occurs, remove unnecessary solvent and by coated for coupling agent nano-filled thing drying, obtain auxiliary mixture;
(2) put in high-speed mixer by proportioning by PTT, POE, TPEE, EVA and methacryloxypropyl silane, 900 revs/min are stirred 9min, obtain substrate mixture;
(3) described substrate mixture is heated to 75 DEG C, adds the auxiliary mixture of respective quality part, softening agent, anti-aging agent and stablizer, continue to stir 15min, obtain mixture;
(4) described mixture is added in twin screw extruder carry out melt blending, extrude, cool, granulation, the blending extrusion temperature of twin screw extruder is: 175 DEG C, a district, two 180 DEG C, districts, three 195 DEG C, districts, four 205 DEG C, districts, five 210 DEG C, districts, head 220 DEG C; Screw speed 200r/min, obtains composite plastic particle; And
(5) described composite plastic particle is added injection moulding machine, send to injection molding machine nozzle through injection moulding rotary screw (screw speed is: 120r/min), nozzle temperature is arranged on 260 DEG C, injection pressure is: 75Mpa, and carry out pressurize, dwell time is: 45 seconds, forms the combination pump impeller prepared by above-mentioned materials, is applicable to briny environment.
Embodiment 3
Combination pump impeller material composition forms proportioning:
The manufacture method of described combination pump impeller, comprises the steps:
(1) pre-treatment is carried out by nano-filled dose, the titanate coupling agent of respective quality is dissolved in a small amount of toluene solvant, nano-filled dose that adds respective quality part is at room temperature stirred 15min, be warming up to 90 DEG C, continue to stir 30min, ensure that titanate coupling agent, with nano-filled dose, coupled action occurs, remove unnecessary solvent and by coated for coupling agent nano-filled thing drying, obtain auxiliary mixture;
(2) put in high-speed mixer by proportioning by PTT, POE, TPEE, EVA and methacryloxypropyl silane, 1100 revs/min are stirred 5min, obtain substrate mixture;
(3) described substrate mixture is heated to 80 DEG C, adds the auxiliary mixture of respective quality part, softening agent, anti-aging agent and stablizer, continue to stir 15min, obtain mixture;
(4) described mixture is added in twin screw extruder carry out melt blending, extrude, cool, granulation, the blending extrusion temperature of twin screw extruder is: 180 DEG C, a district, two 185 DEG C, districts, three 195 DEG C, districts, four 205 DEG C, districts, five 210 DEG C, districts, head 220 DEG C; Screw speed 200r/min, obtains composite plastic particle; And
(5) described composite plastic particle is added injection moulding machine, send to injection molding machine nozzle through injection moulding rotary screw (screw speed is: 100r/min), nozzle temperature is arranged on 270 DEG C, injection pressure is: 80Mpa, and carry out pressurize, dwell time is: 45 seconds, forms the combination pump impeller prepared by above-mentioned materials, is applicable to briny environment.
Embodiment 4
Combination pump impeller material composition forms proportioning:
The manufacture method of described combination pump impeller, comprises the steps:
(1) pre-treatment is carried out by nano-filled dose, the titanate coupling agent of respective quality is dissolved in a small amount of toluene solvant, nano-filled dose that adds respective quality part is at room temperature stirred 10min, be warming up to 90 DEG C, continue to stir 30min, ensure that titanate coupling agent, with nano-filled dose, coupled action occurs, remove unnecessary solvent and by coated for coupling agent nano-filled thing drying, obtain auxiliary mixture;
(2) put in high-speed mixer by proportioning by PTT, POE, TPEE, EVA and methacryloxypropyl silane, 1000 revs/min are stirred 8min, obtain substrate mixture;
(3) described substrate mixture is heated to 70 DEG C, adds the auxiliary mixture of respective quality part, softening agent, anti-aging agent and stablizer, continue to stir 15min, obtain mixture;
(4) described mixture is added in twin screw extruder carry out melt blending, extrude, cool, granulation, the blending extrusion temperature of twin screw extruder is: 170 DEG C, a district, two 180 DEG C, districts, three 190 DEG C, districts, four 205 DEG C, districts, five 210 DEG C, districts, head 220 DEG C; Screw speed 220r/min, obtains composite plastic particle; And
(5) described composite plastic particle is added injection moulding machine, send to injection molding machine nozzle through injection moulding rotary screw (screw speed is: 90r/min), nozzle temperature is arranged on 280 DEG C, injection pressure is: 80Mpa, and carry out pressurize, dwell time is: 50 seconds, forms the combination pump impeller prepared by above-mentioned materials, is applicable to briny environment.
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and specification sheets; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in claimed scope of the present invention.The protection domain of application claims is defined by appending claims and equivalent thereof.
Claims (10)
1. a combination pump impeller, is characterized in that, comprising:
The engineering plastics matrix that polyester fiber is formed;
The elastomerics that thermoplastic polymer is formed; And
Compatilizer, described elastomerics is interspersed in the composite mesh structure forming high strength in described engineering plastics matrix for polymerization by described compatilizer, wherein, described engineering plastics matrix is Poly(Trimethylene Terephthalate), what described elastomerics was chosen is in thermoplastic polyester elastomer, polyolefin elastomer one or both, described compatilizer is ethylene-vinyl acetate copolymer.
2. combination pump impeller according to claim 1, it comprises auxiliary and assisted reaction agent further, described auxiliary is for the paradigmatic structure of assisted and strengthened described combination pump impeller, described assisted reaction agent is for being compound in by described auxiliary in described engineering plastics matrix and described elastomerics, wherein, described auxiliary is nano-filled dose, and described assisted reaction agent is methacryloxypropyl silane and titanate coupling agent.
3. combination pump impeller according to claim 2, described nano-filled dose choose be nanoclay, nano-calcium carbonate, nano silicon, nano-aluminium oxide, nano zine oxide nano titanium oxide one or more.
4. combination pump impeller according to claim 3, described combination pump impeller comprises additives further, for strengthening the stability of described combination pump impeller, structural strength and use properties, one or more of what described additives were chosen is stablizer, softening agent and stablizer, wherein, described stablizer is polycarboimide(PCD) stablizer, and described softening agent is diisononyl adipate, and described anti-aging agent is nickel dibutyl dithiocarbamate.
5. combination pump impeller according to claim 4, its material composition composition is counted by weight: Poly(Trimethylene Terephthalate) is 10 ~ 70 parts; Thermoplastic polyester elastomer is 0 ~ 35 part; Polyolefin elastomer is 0 ~ 30 part; Ethylene-vinyl acetate copolymer is 1 ~ 15 part; Methacryloxypropyl silane is 0 ~ 5 part; Nano-filled dose is 0 ~ 15 part; Titanate coupling agent is 0 ~ 5 part; Softening agent is 0 ~ 5 part; Stablizer 0 ~ 2 part; And 0 ~ 2 part, anti-aging agent.
6. combination pump impeller according to claim 5, its material composition composition is counted by weight: Poly(Trimethylene Terephthalate) is 30 ~ 50 parts; Thermoplastic polyester elastomer is 20 ~ 35 parts; Polyolefin elastomer is 15 ~ 30 parts; Ethylene-vinyl acetate copolymer is 3 ~ 8 parts; Methacryloxypropyl silane is 1 ~ 3 part; Nano-filled dose is 4 ~ 12 parts; Titanate coupling agent is 1 ~ 4 part; Softening agent is 1 ~ 4 part; Stablizer 0.5 ~ 1 part; And 0.5 ~ 1 part, anti-aging agent.
7. a manufacture method for combination pump impeller, is characterized in that, comprises step:
(a) by engineering plastics matrix, elastomerics dispersing and mixing in compatilizer, obtain substrate mixture, wherein, described engineering plastics matrix is Poly(Trimethylene Terephthalate), what described elastomerics was chosen is in thermoplastic polyester elastomer, polyolefin elastomer one or both, described compatilizer is ethylene-vinyl acetate copolymer;
(b) modification auxiliary, described auxiliary is nano-filled dose, and linked reaction is occurred for titanate coupling agent and nano-filled dose, makes described nano-filled dose to be coated in described titanate coupling agent, obtains auxiliary mixture;
C () is introduced and is assisted mixture and additives in described substrate mixture, obtain mixture by graft polymerization reaction heating; And
D described mixture melt extrudes by (), and obtain combination pump impeller by injection moulding.
8. the manufacture method of combination pump impeller according to claim 7, described step (b) comprises step further: nano-filled dose of (b.1) pre-treatment, be dissolved in a small amount of toluene solvant by the titanate coupling agent of respective quality, nano-filled dose that adds respective quality part is at room temperature stirred 10-30min;
(b.2) be warming up to 90 DEG C, continue to stir 30min, make titanate coupling agent and nano-filled dose that coupled action occur; And
(b.3) remove unnecessary solvent and by nano-filled dose of coated for coupling agent drying, obtain described auxiliary mixture.
9. the manufacture method of combination pump impeller according to claim 8, described step (d) comprises step:
(d.1) described mixture is added in twin screw extruder carry out melt blending, extrude, cool and granulation, obtain composite plastic particle; And
(d.2) described composite plastic particle is added injection moulding machine, send to injection molding machine nozzle through injection moulding rotary screw, and carry out pressurize, form described combination pump impeller, be applicable in impeller of sea water pump.
10., according to the manufacture method of described combination pump impeller arbitrary in claim 7 to 9, in described manufacture method, comprise the steps:
I () will put in high-speed mixer with Poly(Trimethylene Terephthalate), thermoplastic polyester elastomer, polyolefin elastomer, ethylene-vinyl acetate copolymer and methacryloxypropyl silane by proportioning, 900 ~ 1000 revs/min are stirred 5 ~ 10min, obtain substrate mixture;
(ii) described substrate mixture is heated to 70 ~ 80 DEG C, adds the described auxiliary mixture of respective quality part, softening agent, anti-aging agent and stablizer, continue stirring 10 ~ 20min, obtain mixture;
(iii) described mixture is added in twin screw extruder carry out melt blending, extrude, cool, granulation, the blending extrusion temperature of twin screw extruder is: 170 ~ 180 DEG C, a district, two 180 ~ 190 DEG C, districts, three 190 ~ 200 DEG C, districts, four 200 ~ 210 DEG C, districts, five 210 ~ 220 DEG C, districts, head 210 ~ 230 DEG C; Screw speed 180 ~ 220r/min, obtains composite plastic particle; And
(iv) described plastic pellet is added injection moulding machine, send to injection molding machine nozzle through injection moulding rotary screw, wherein, described screw speed is 80 ~ 120r/min, nozzle temperature is arranged on 250 ~ 280 DEG C, and injection pressure is 70 ~ 80Mpa, and carries out pressurize, dwell time is 45 ~ 50 seconds, the shaping combination pump impeller preparing high strength.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225217A (en) * | 2008-02-03 | 2008-07-23 | 博罗县长风电子有限公司 | Material for manufacturing computer fan |
| CN103080227A (en) * | 2010-07-13 | 2013-05-01 | 英威达技术有限公司 | High dimensional stability polyester compositions |
| CN103540107A (en) * | 2012-07-16 | 2014-01-29 | 吴祥生 | High anti-shock reinforced flame retardant polybutylene terephthalate (PBT) material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225217A (en) * | 2008-02-03 | 2008-07-23 | 博罗县长风电子有限公司 | Material for manufacturing computer fan |
| CN103080227A (en) * | 2010-07-13 | 2013-05-01 | 英威达技术有限公司 | High dimensional stability polyester compositions |
| CN103540107A (en) * | 2012-07-16 | 2014-01-29 | 吴祥生 | High anti-shock reinforced flame retardant polybutylene terephthalate (PBT) material and preparation method thereof |
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