CN102585434A - Sound-attenuating and wear-resistant polyformaldehyde material and preparation method thereof - Google Patents

Sound-attenuating and wear-resistant polyformaldehyde material and preparation method thereof Download PDF

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Publication number
CN102585434A
CN102585434A CN2012100041144A CN201210004114A CN102585434A CN 102585434 A CN102585434 A CN 102585434A CN 2012100041144 A CN2012100041144 A CN 2012100041144A CN 201210004114 A CN201210004114 A CN 201210004114A CN 102585434 A CN102585434 A CN 102585434A
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China
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noise reduction
wear
polyformaldehyde material
reduction wear
resisting polyformaldehyde
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CN102585434B (en
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徐东
徐永
周兵
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Xu Dong
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深圳市科聚新材料有限公司
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/04—Particle-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92514—Pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92561—Time, e.g. start, termination, duration or interruption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone

Abstract

The invention provides a sound-attenuating and wear-resistant polyformaldehyde material. The material comprises the following components in percentage by weight: 55 to 75 percent of polyformaldehyde resin, 5 to 10 percent of low density polyethylene, 3 to 10 percent of toughening agent, 10 to 20 percent of polytetrafluoroethylene, 2 to 5 percent of compatilizer, 0.2 to 0.4 percent of antioxidant, 0.2 to 0.6 percent of lubricating agent and 0.2 to 0.6 percent of aldehyde absorbing agent. The invention also provides a method for preparing the sound-attenuating and wear-resistant polyformaldehyde material. The sound-attenuating and wear-resistant polyformaldehyde material has high strength, dimensional stability, creep resistance, fatigue resistance, and high self-lubricating property, sound-attenuating property and wear resistance; and the preparation method for the material is simple, convenient to operate, high in benefit, low in cost and suitable for industrial production.

Description

A kind of noise reduction wear-resisting polyformaldehyde material and preparation method thereof
Technical field
The invention belongs to technical field of polymer materials, be specifically related to a kind of noise reduction wear-resisting polyformaldehyde material and preparation method thereof.
Background technology
A kind of as in the five large-engineering plastics of POM (polyoxymethylene) resin is one of most widely used polymkeric substance, belongs to the thermoplasticity crystalline polymer, do not contain side chain, high-density, and high crystallization linear polymer has the excellent comprehensive performance.
Polyoxymethylene is a kind of smooth surface, glossiness hard and fine and close material, can be in-40～100 ℃ of TRs life-time service.Its wear resistance and self lubricity are also superior than most engineering plastics, and bending stretch intensity is high, and water-absorbent is little, dimensional stabilizing, and high rigidity, creep resistance, fatigue resistance is high, is particularly suitable for making gear and bearing.
But POM is used in those oilness, wearability, rigidity and dimensional stability is required on the mechanical part of relatively stricter slip and rolling, and noise is big, and frictional coefficient is big, and material property needs further to improve.
Summary of the invention
Technical problem to be solved by this invention is to overcome the defective of prior art, and a kind of noise reduction wear-resisting polyformaldehyde material and preparation method thereof is provided.
The present invention is achieved in that a kind of noise reduction wear-resisting polyformaldehyde material, and it comprises the following component according to weight percent:
Polyoxymethylene resin 55～75%;
New LDPE (film grade) 5～10%;
Toughner 3～10%;
Tetrafluoroethylene 10～20%;
Compatilizer 2～5%;
Oxidation inhibitor 0.2～0.4%;
Lubricant 0.2～0.6%;
Inhale aldehyde agent 0.2～0.6%.
And, a kind of noise reduction wear-resisting polyformaldehyde preparation methods, it comprises the steps:
Prescription by above-mentioned noise reduction wear-resisting polyformaldehyde material takes by weighing each component;
Said polyoxymethylene resin, new LDPE (film grade), toughner and compatilizer are mixed, get original mixture;
With said tetrafluoroethylene, oxidation inhibitor, lubricant and the agent of suction aldehyde, mix with said original mixture, get mixture;
Said mixture is melt extruded, and granulation obtains said noise reduction wear-resisting polyformaldehyde material.
Noise reduction wear-resisting polyformaldehyde material provided by the invention; Through adopting the rationally composite of polyoxymethylene resin, new LDPE (film grade), toughner, tetrafluoroethylene, compatilizer, oxidation inhibitor, lubricant and the agent of suction aldehyde; Guaranteed that material has HS, dimensional stabilizing, creep resistance, fatigue proof performance; Simultaneously, also have excellent self-lubricating, noise reduction and wear resistance.In addition, the starting material of its use all are the environmentally-friendly sanitary levels, and the material of preparation contacts with human body can not cause any harmful material.Further, this noise reduction wear-resisting polyformaldehyde preparation methods adopts the technology of the disposable completion of mixing reaction extruding pelletization, and its preparation method technology is simple, and is easy to operate, high efficiency, and cost is low, is suitable for suitability for industrialized production.
Description of drawings
Fig. 1 is the schema of the noise reduction wear-resisting polyformaldehyde material preparation method of the embodiment of the invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
A kind of noise reduction wear-resisting polyformaldehyde material of the embodiment of the invention, it comprises the following component according to weight percent:
Polyoxymethylene resin 69%;
New LDPE (film grade) 7%;
Toughner 5%;
Tetrafluoroethylene 15%;
Compatilizer 3%;
Oxidation inhibitor 0.3%;
Lubricant 0.2～0.6%;
Inhale aldehyde agent 0.2～0.6%.
Wherein, preferably, said polyoxymethylene resin is the copoly type polyoxymethylene, and specific density is 1.40～1.43, produces trade names M90 like skies company.
Said new LDPE (film grade) is preferably specific density 0.91～0.929, and molecular weight is 10～500,000 Vilaterm, produces like China Petrochemical Industry, and trade names LDPE 7042.Through adding new LDPE (film grade), make the noise of material when highly rotating reduce.
Described toughner is preferably TPUE (TPU), more preferably is polyether-type TPU, and hardness is 70～95A.Like German BASF production, trade names are 1185A.
Said tetrafluoroethylene is preferably lower molecular weight micro powder type tetrafluoroethylene, about 150 orders of powder, and like Daikin production, trade names are L-5.Add lower molecular weight micro mist tetrafluoroethylene, the frictional coefficient of polyoxymethylene further reduces, and wearability improves.
Said compatilizer is Injecatable EVA Copolymer (EVA), and vinyl acetate between to for plastic (VA) resin content is 25～50%.Produce VA content 35%, the EVA of trade names 40W like E.I.Du Pont Company.
Said oxidation inhibitor is the composite of four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester primary antioxidant and three (2, the 4-di-t-butyl) phenyl-phosphite auxiliary anti-oxidant.As select for use Ciba company to produce, trade names are respectively Irganox1010 and Irganox168.Further, the mass ratio of four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and three (2, the 4-di-t-butyl) phenyl-phosphite is 2: 1.
Said lubricant is the vinyl bis-stearamides, produces like company of salon, and trade names EBS 120.The vinyl bis-stearamides not only has good external lubrication effect, and has good internal lubrication effect, can improve the flowability and the release property of material in the processing, thereby has improved the output of noise reduction wear-resisting polyformaldehyde materials processed, has reduced energy consumption.
The agent of said suction aldehyde is long carbochain carboxylic acid calcium salt, and buff powder is produced trade names CAV102 like Clariant company.
See also Fig. 1, show a kind of noise reduction wear-resisting polyformaldehyde preparation methods of the embodiment of the invention, this method comprises the steps:
S01: the prescription by above-mentioned noise reduction wear-resisting polyformaldehyde material takes by weighing each component;
S02: said polyoxymethylene resin, new LDPE (film grade), toughner and compatilizer are mixed, get original mixture;
S03: with said tetrafluoroethylene, oxidation inhibitor, lubricant and the agent of suction aldehyde, mix, get mixture with said original mixture;
S04: said mixture is melt extruded, and granulation obtains said noise reduction wear-resisting polyformaldehyde material.
Among the step S01, all material weighings are accurate, are accurate to 0.001 kilogram.Each component preferred content in said noise reduction wear-resisting polyformaldehyde material and the prescription and kind in order to practice thrift length, repeat no more at this as stated.
Step S02 is specially, and pours said polyoxymethylene resin, new LDPE (film grade), toughner and compatilizer into whipping device, mixes, and gets original mixture.
Among the step S03,, join in the mixing tank with said original mixture and to mix tetrafluoroethylene, oxidation inhibitor, lubricant and the agent of suction aldehyde, up to evenly, mixture.
Step S04 is specially, and the mixture that mixes is put into the loading hopper of twin screw extruder, through melt extruding granulation; Complete processing is following: 140～170 ℃ of twin screw extruder one district's temperature, and 160～175 ℃ of two district's temperature, 175～190 ℃ of three district's temperature, 170～190 ℃ of four district's temperature, 175～190 ℃ of heads, the residence time 2～3min, pressure are 12～18MPa.
The noise reduction wear-resisting polyformaldehyde material that the embodiment of the invention provides; Add auxiliary agent through choose reasonable, obtain the material of excellent combination property, it not only has HS, dimensional stabilizing, creep resistance, fatigue proof superperformance; Also have excellent self-lubricating, noise reduction and wear resistance.Additive therefor is commercially available, and production cost is low, and said noise reduction wear-resisting polyformaldehyde material produce technology is simple, easily control.The noise reduction wear-resisting polyformaldehyde material that obtains is suitable for making demanding slip and rolling machine parts, for example gear and bearing etc. very much.
Below embodiment through concrete prescription and preparation method above-mentioned noise reduction wear-resisting polyformaldehyde material and preparation method thereof is described.
Embodiment 1:
The component and the weight percentage thereof of the noise reduction wear-resisting polyformaldehyde material of present embodiment are:
Polyoxymethylene resin 69%;
New LDPE (film grade) 7%;
Toughner 5%;
Tetrafluoroethylene 15%;
Compatilizer 3%;
Oxidation inhibitor 0.3%;
Lubricant 0.2～0.6%;
Inhale aldehyde agent 0.2～0.6%.
Wherein, polyoxymethylene resin is copoly type POM, and skies company produces, trade names M90; New LDPE (film grade) is selected specific density 0.91～0.929 for use, and China Petrochemical Industry produces, and trade names LDPE 7042; Toughner thermoplastic elastomer TPU selects polyether-type for use, hardness 85A, and German BASF production, trade names are 1185A; Tetrafluoroethylene is selected micro powder type for use, powder 150 orders, and Daikin production, trade names are L-5; Compatilizer is selected the EVA resin for use, VA content 35%, and E.I.Du Pont Company produces, trade names 40W; Oxidation inhibitor is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, and three (2, the 4-di-t-butyl) phenyl-phosphite selects for use Ciba company to produce, and trade names are respectively Irganox1010 and Irganox168; Lubricant is the vinyl bis-stearamides, and company of salon produces, and trade names EBS 120.Inhale the aldehyde agent and be long carbochain carboxylic acid calcium salt, buff powder, Clariant company produces, trade names CAV102.
S11: the prescription according to above-mentioned noise reduction wear-resisting polyformaldehyde material takes by weighing each component;
S12: polyoxymethylene resin, new LDPE (film grade), toughner and compatilizer weighed up pour whisking appliance into, stir, original mixture;
S13: with tetrafluoroethylene, oxidation inhibitor, lubricant and the agent of suction aldehyde, mix, pour whisking appliance into and stir with said original mixture;
S14: the material that mixes is joined in the hopper of twin screw extruder, through melt blending, extruding pelletization obtains said noise reduction wear-resisting polyformaldehyde material.Wherein, each heating region temperature setting of screw rod is respectively: district's temperature: 165 ℃; Two districts: 175 ℃; Three districts: 185 ℃; Four districts: 180 ℃; Head: 180 ℃; The residence time 1～2min.Pressure is 14MPa.
Comparative Examples 1:
The component of the compound polyformaldehyde material of present embodiment and weight percentage thereof are:
Polyoxymethylene resin 76%;
Toughner 5%;
Tetrafluoroethylene 15%;
Compatilizer 3%;
Oxidation inhibitor 0.3%;
Lubricant 0.2～0.6%;
Inhale aldehyde agent 0.2～0.6%.
Wherein, polyoxymethylene resin is copoly type POM, and skies company produces, trade names M90; Toughner thermoplastic elastomer TPU selects polyether-type for use, hardness 85A, and German BASF production, trade names are 1185A; Tetrafluoroethylene is selected micro powder type for use, powder 150 orders, and Daikin production, trade names are L-5; Compatilizer is selected the EVA resin for use, VA content 35%, and E.I.Du Pont Company produces, trade names 40W; Oxidation inhibitor is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, and three (2, the 4-di-t-butyl) phenyl-phosphite selects for use Ciba company to produce, and trade names are respectively Irganox1010 and Irganox168; Lubricant is the vinyl bis-stearamides, and company of salon produces, and trade names EBS 120.Inhale the aldehyde agent and be long carbochain carboxylic acid calcium salt, buff powder, Clariant company produces, trade names CAV102.
S101: the prescription according to above-mentioned noise reduction wear-resisting polyformaldehyde material takes by weighing each component;
S102: polyoxymethylene resin, toughner and compatilizer weighed up pour whisking appliance into, stir, original mixture;
S103: with tetrafluoroethylene, oxidation inhibitor, lubricant and the agent of suction aldehyde, mix, pour whisking appliance into and stir with said original mixture;
S104: the material that mixes is joined in the hopper of twin screw extruder, through melt blending, extruding pelletization obtains said noise reduction wear-resisting polyformaldehyde material.Wherein, each heating region temperature setting of screw rod is respectively: district's temperature: 165 ℃; Two districts: 175 ℃; Three districts: 185 ℃; Four districts: 180 ℃; Head: 180 ℃; The residence time 1～2min.Pressure is 14MPa.
Comparative Examples 2:
The component of the compound polyformaldehyde material of present embodiment and weight percentage thereof are:
Polyoxymethylene resin 84%;
New LDPE (film grade) 7%;
Toughner 5%;
Compatilizer 3%;
Oxidation inhibitor 0.3%;
Lubricant 0.2～0.6%;
Inhale aldehyde agent 0.2～0.6%.
Wherein, polyoxymethylene resin is copoly type POM, and skies company produces, trade names M90; New LDPE (film grade) is selected specific density 0.91～0.929 for use, and China Petrochemical Industry produces, and trade names LDPE 7042; Toughner thermoplastic elastomer TPU selects polyether-type for use, hardness 85A, and German BASF production, trade names are 1185A; Compatilizer is selected the EVA resin for use, VA content 35%, and E.I.Du Pont Company produces, trade names 40W; Oxidation inhibitor is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, and three (2, the 4-di-t-butyl) phenyl-phosphite selects for use Ciba company to produce, and trade names are respectively Irganox1010 and Irganox168; Lubricant is the vinyl bis-stearamides, and company of salon produces, and trade names EBS 120.Inhale the aldehyde agent and be long carbochain carboxylic acid calcium salt, buff powder, Clariant company produces, trade names CAV102.
S201: the prescription according to above-mentioned noise reduction wear-resisting polyformaldehyde material takes by weighing each component;
S202: polyoxymethylene resin, new LDPE (film grade), toughner and compatilizer weighed up pour whisking appliance into, stir, original mixture;
S203: with oxidation inhibitor, lubricant and the agent of suction aldehyde, mix, pour whisking appliance into and stir with said original mixture;
S204: the material that mixes is joined in the hopper of twin screw extruder, through melt blending, extruding pelletization obtains compound polyformaldehyde material.Wherein, each heating region temperature setting of screw rod is respectively: district's temperature: 165 ℃; Two districts: 175 ℃; Three districts: 185 ℃; Four districts: 180 ℃; Head: 180 ℃; The residence time 1～2min.Pressure is 14MPa.
Comparative Examples 3:
The component of the compound polyformaldehyde material of present embodiment and weight percentage thereof are:
Polyoxymethylene resin 91%;
Toughner 5%;
Compatilizer 3%;
Oxidation inhibitor 0.3%;
Lubricant 0.2～0.6%;
Inhale aldehyde agent 0.2～0.6%.
Wherein, polyoxymethylene resin is copoly type POM, and skies company produces, trade names M90; Toughner thermoplastic elastomer TPU selects polyether-type for use, hardness 85A, and German BASF production, trade names are 1185A; Compatilizer is selected the EVA resin for use, VA content 35%, and E.I.Du Pont Company produces, trade names 40W; Oxidation inhibitor is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, and three (2, the 4-di-t-butyl) phenyl-phosphite selects for use Ciba company to produce, and trade names are respectively Irganox1010 and Irganox168; Lubricant is the vinyl bis-stearamides, and company of salon produces, and trade names EBS 120.Inhale the aldehyde agent and be long carbochain carboxylic acid calcium salt, buff powder, Clariant company produces, trade names CAV102.
S301: the prescription according to above-mentioned noise reduction wear-resisting polyformaldehyde material takes by weighing each component;
S302: polyoxymethylene resin, toughner and compatilizer weighed up pour whisking appliance into, stir, original mixture;
S303: with oxidation inhibitor, lubricant and the agent of suction aldehyde, mix, pour whisking appliance into and stir with said original mixture;
S304: the material that mixes is joined in the hopper of twin screw extruder, through melt blending, extruding pelletization obtains said compound polyformaldehyde material.Wherein, each heating region temperature setting of screw rod is respectively: district's temperature: 165 ℃; Two districts: 175 ℃; Three districts: 185 ℃; Four districts: 180 ℃; Head: 180 ℃; The residence time 1～2min.Pressure is 14MPa
With the particle of accomplishing as stated above in 100 ℃ convection oven dry 3～6 hours in advance, and then the particulate material that drying is good carried out the injection molding sample preparation on injector, and the injection mold temperature control is at 100 ℃.
Performance test:
Tensile strength is tested by GB/T 1040 standards, and specimen types is an II type sample, batten size (mm): 115 (length) * (6 ± 0.4) (middle parallel portion width) * 2 (thickness), draw speed is 200mm/min.The noise test is tested according to treasured reason POM noise testing standard, and specimen types is two hollow rings, circle diameter 30mm, hollow diameter 10mm, annulus thickness 1.5mm, two annulus contact area 6.3cm 2, two annulus and together during test, following annulus is skies M90, and last annulus is for needing test specimens, and upward annulus is fixed during test, following annulus rotation, the rotation condition is: surface pressure 4.9 * 10 -2MPa, rotating speed 2.4cm/s, time 10min.Friction testing is tested according to treasured reason POM friction testing standard, and specimen types is two hollow rings, circle diameter 25.6mm, hollow diameter 20mm, annulus thickness 15mm, two annulus contact area 2.0cm 2, two annulus and together during test, following annulus is skies M90, and last annulus is for needing test specimens, and upward annulus is fixed during test, following annulus rotation, the rotation condition is: surface pressure 5.8 * 10 -2MPa, rotating speed 15cm/s, time 24h.
The foregoing description 1 is as shown in table 1 respectively with the performance of the noise reduction wear-resisting polyformaldehyde material of Comparative Examples 1～3 preparation.
Table 1
Form Embodiment 1 Comparative Examples 1 Comparative Examples 2 Comparative Examples 3
Tensile strength (MPa) 52 53 52 56
Elongation at break (%) 62 56 86 75
Frequency noise (decibel DB) 33 62 35 65
Frictional coefficient (μ) 0.23 0.21 0.38 0.36
Wear volume (* 10 -3?mm 3/N·KM) 6.8 6.9 38.5 39.1
Can find out that by last table polyformaldehyde material has oilness and wear resistance preferably, behind the interpolation LDPE; The noise that material produces in running obviously reduces, and the polyoxymethylene noise decibel that does not add LDPE is 65, added LDPE after; Noise drops to 33 decibels from 65 decibels, add PTFE after, the frictional coefficient of material obviously descends; Frictional dissipation reduces down, drops to 0.21 from the frictional coefficient 0.36 of unmodified resin, and frictional dissipation drops to 6.8 from 39.1.In fields such as some machineries, industry, the gear that polyoxymethylene is made, products such as bearing are in use carrying out the high speed rotation always; It is little that this just makes that material must satisfy noise, and frictional coefficient is low, and the is wear-resistant requirement of Denging; Through in common polyoxymethylene resin, adding new LDPE (film grade) and PTFE micro mist, carry out the modification blend, the noise that can reduce polyoxymethylene greatly produces; Frictional coefficient and frictional dissipation further reduce, and obtain noise reduction wear-resisting polyformaldehyde material, to satisfy the demand in market.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. a noise reduction wear-resisting polyformaldehyde material is characterized in that, it comprises the following component according to weight percent:
Polyoxymethylene resin 55～75%;
New LDPE (film grade) 5～10%;
Toughner 3～10%;
Tetrafluoroethylene 10～20%;
Compatilizer 2～5%;
Oxidation inhibitor 0.2～0.4%;
Lubricant 0.2～0.6%;
Inhale aldehyde agent 0.2～0.6%.
2. noise reduction wear-resisting polyformaldehyde material according to claim 1 is characterized in that said polyoxymethylene resin is the copoly type polyoxymethylene, and specific density is 1.40～1.43.
3. noise reduction wear-resisting polyformaldehyde material according to claim 1 is characterized in that new LDPE (film grade) is a specific density 0.91～0.929, and molecular weight is 10～500,000 Vilaterm.
4. noise reduction wear-resisting polyformaldehyde material according to claim 1 is characterized in that said toughner is TPUE.
5. noise reduction wear-resisting polyformaldehyde material according to claim 1 is characterized in that said tetrafluoroethylene is a low molecular weight polytetrafluoroethylene.
6. noise reduction wear-resisting polyformaldehyde material according to claim 1 is characterized in that said compatilizer is an Injecatable EVA Copolymer, and vinyl acetate resin content is 25～50%.
7. noise reduction wear-resisting polyformaldehyde material according to claim 1; It is characterized in that said oxidation inhibitor is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and three (2; The 4-di-t-butyl) mixture of phenyl-phosphite; The mass ratio of said four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and three (2, the 4-di-t-butyl) phenyl-phosphite is 2: 1.
8. noise reduction wear-resisting polyformaldehyde material according to claim 1 is characterized in that said lubricant is the vinyl bis-stearamides, and the agent of said suction aldehyde is long carbochain carboxylic acid calcium salt.
9. noise reduction wear-resisting polyformaldehyde preparation methods, it comprises the steps:
Prescription by the arbitrary described noise reduction wear-resisting polyformaldehyde material of claim 1～8 takes by weighing each component;
Said polyoxymethylene resin, new LDPE (film grade), toughner and compatilizer are mixed, get original mixture;
With said tetrafluoroethylene, oxidation inhibitor, lubricant and the agent of suction aldehyde, mix with said original mixture, get mixture;
Said mixture is melt extruded, and granulation obtains said noise reduction wear-resisting polyformaldehyde material.
10. noise reduction wear-resisting polyformaldehyde preparation methods according to claim 9 is characterized in that, the said processing condition that melt extrude are: 140～170 ℃ of district's temperature; 160～175 ℃ of two district's temperature; 175～190 ℃ of three district's temperature, 170～190 ℃ of four district's temperature, 175～190 ℃ of heads; The residence time 2～3min, pressure are 12～18MPa.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102888076A (en) * 2012-11-05 2013-01-23 科创聚合物(苏州)有限公司 Preparation process of self-lubricating wear-resistant injection molding molybdenum disulfide polyformaldehyde
CN102888075A (en) * 2012-11-05 2013-01-23 科创聚合物(苏州)有限公司 Preparation process of toughened filled polyformaldehyde with function of preventing buckling deformation
CN102898772A (en) * 2012-11-05 2013-01-30 科创聚合物(苏州)有限公司 Polyformaldehyde with high abrasion resistance and preparation technology thereof
CN103435966A (en) * 2012-12-19 2013-12-11 安徽科聚新材料有限公司 Polyformaldehyde material and preparation method thereof
CN103937148A (en) * 2014-05-12 2014-07-23 云南云天化股份有限公司 Polyformaldehyde resin composition and preparation method thereof
CN103937149A (en) * 2014-04-02 2014-07-23 宁国市华晟塑胶制品有限公司 Method for using polyformaldehyde homopolymer
CN104212119A (en) * 2013-05-30 2014-12-17 上海杰事杰新材料(集团)股份有限公司 Hot-water resistance polyformaldehyde composition and preparation method thereof
CN106939115A (en) * 2017-03-30 2017-07-11 桑德（天津）再生资源投资控股有限公司 A kind of preparation method of noise elimination lubricating function material
CN109912923A (en) * 2019-02-21 2019-06-21 浙江中达精密部件股份有限公司 A kind of wear-resisting polyformaldehyde material and preparation method thereof
CN110527244A (en) * 2019-08-26 2019-12-03 上海华合复合材料有限公司 A kind of low warpage, high-dimensional stability exempt from spray POM composite material and preparation method
CN113831680A (en) * 2020-06-24 2021-12-24 合肥杰事杰新材料股份有限公司 Low-shrinkage high-toughness polyformaldehyde composition and preparation method thereof
CN113970821A (en) * 2021-11-17 2022-01-25 长飞光纤光缆股份有限公司 Air-blowing micro cable capable of being used under large duty ratio, and preparation method and application of outer layer of air-blowing micro cable
CN114002794A (en) * 2021-11-17 2022-02-01 长飞光纤光缆股份有限公司 Layer-stranded air-blown micro-cable with high fiber core density, and preparation method and application of outer layer thereof
CN114752264A (en) * 2022-03-30 2022-07-15 连云港天邦科技开发有限公司 Anti-wall-hanging heat-insulation coating material, preparation method and application thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101629008A (en) * 2009-07-07 2010-01-20 中国蓝星（集团）股份有限公司 Polyoxymethylene blending material and preparation method thereof
CN101948606A (en) * 2010-11-02 2011-01-19 华东理工大学 High wear-resistant self-lubrication polyformaldehyde composite material and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101629008A (en) * 2009-07-07 2010-01-20 中国蓝星（集团）股份有限公司 Polyoxymethylene blending material and preparation method thereof
CN101948606A (en) * 2010-11-02 2011-01-19 华东理工大学 High wear-resistant self-lubrication polyformaldehyde composite material and preparation method thereof

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CN102888075A (en) * 2012-11-05 2013-01-23 科创聚合物(苏州)有限公司 Preparation process of toughened filled polyformaldehyde with function of preventing buckling deformation
CN102898772A (en) * 2012-11-05 2013-01-30 科创聚合物(苏州)有限公司 Polyformaldehyde with high abrasion resistance and preparation technology thereof
CN102888076A (en) * 2012-11-05 2013-01-23 科创聚合物(苏州)有限公司 Preparation process of self-lubricating wear-resistant injection molding molybdenum disulfide polyformaldehyde
CN103435966A (en) * 2012-12-19 2013-12-11 安徽科聚新材料有限公司 Polyformaldehyde material and preparation method thereof
CN104212119B (en) * 2013-05-30 2018-04-27 上海杰事杰新材料(集团)股份有限公司 A kind of heat-proof water polyformaldehyde composition and preparation method thereof
CN104212119A (en) * 2013-05-30 2014-12-17 上海杰事杰新材料(集团)股份有限公司 Hot-water resistance polyformaldehyde composition and preparation method thereof
CN103937149A (en) * 2014-04-02 2014-07-23 宁国市华晟塑胶制品有限公司 Method for using polyformaldehyde homopolymer
CN103937148A (en) * 2014-05-12 2014-07-23 云南云天化股份有限公司 Polyformaldehyde resin composition and preparation method thereof
CN103937148B (en) * 2014-05-12 2017-04-05 云南云天化股份有限公司 Polyoxymethylene resin composition and preparation method thereof
CN106939115A (en) * 2017-03-30 2017-07-11 桑德（天津）再生资源投资控股有限公司 A kind of preparation method of noise elimination lubricating function material
CN109912923A (en) * 2019-02-21 2019-06-21 浙江中达精密部件股份有限公司 A kind of wear-resisting polyformaldehyde material and preparation method thereof
CN110527244A (en) * 2019-08-26 2019-12-03 上海华合复合材料有限公司 A kind of low warpage, high-dimensional stability exempt from spray POM composite material and preparation method
CN113831680A (en) * 2020-06-24 2021-12-24 合肥杰事杰新材料股份有限公司 Low-shrinkage high-toughness polyformaldehyde composition and preparation method thereof
CN113970821A (en) * 2021-11-17 2022-01-25 长飞光纤光缆股份有限公司 Air-blowing micro cable capable of being used under large duty ratio, and preparation method and application of outer layer of air-blowing micro cable
CN114002794A (en) * 2021-11-17 2022-02-01 长飞光纤光缆股份有限公司 Layer-stranded air-blown micro-cable with high fiber core density, and preparation method and application of outer layer thereof
CN114752264A (en) * 2022-03-30 2022-07-15 连云港天邦科技开发有限公司 Anti-wall-hanging heat-insulation coating material, preparation method and application thereof

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