CN104371267A - Automotive weatherable polyformaldehyde blend and preparation method thereof - Google Patents
Automotive weatherable polyformaldehyde blend and preparation method thereof Download PDFInfo
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- CN104371267A CN104371267A CN201410238180.7A CN201410238180A CN104371267A CN 104371267 A CN104371267 A CN 104371267A CN 201410238180 A CN201410238180 A CN 201410238180A CN 104371267 A CN104371267 A CN 104371267A
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Abstract
The invention discloses an automotive weatherable polyformaldehyde blend and a preparation method thereof. The blend is prepared from the following raw materials in percent by weight: 80-98% of polyoxymethylene resin, 0.1-5% of a benzotriazole ultraviolet ray absorber, 0.1-5% of a hindered-amine light stabilizer, 0.1-5% of a light screening agent, 0.1-5% of an acid absorption agent, 0.1-5% of an anti-oxidant, and 0.1-5% of a lubricant. The preparation method of the weatherable polyformaldehyde blend comprises: weighing the raw materials according to the above weight percentages, mixing in a high-speed mixer for 2-5 min, and discharging the material; and performing extrusion granulation on the uniformly-mixed raw materials by a double-screw extruder. Through compounding of the light screening agent, the ultraviolet ray absorber and the light stabilizer, the ultraviolet-ageing-resistant performance of polyformaldehyde is synergically improved. The prepared weatherable polyformaldehyde blend possesses good mechanical properties, and still keeps excellent comprehensive performances after being subjected to long-term accelerating action of multiple ageing factors.
Description
Technical field
The present invention relates to a kind of automobile weathering resistance polyoxymethylene blends and preparation method thereof, be specifically related to the resistance to ultraviolet of a kind of automobile and heat oxygen aging resistance polyoxymethylene mixture and preparation method thereof, belong to functional modification technology and the preparation field of engineering plastics.
Background technology
Polyoxymethylene is a kind of engineering plastics of excellent property, because have high specific tenacity and rigidity, excellent corrosion resistant, wear-resisting, self-lubricating and creep-resistant property, be widely used in electric, mechanical, the field such as instrument, daily light industry, automobile, building materials, agricultural.But weather resistance is poor, easily by ultraviolet degradation during outdoor life-time service, be easy to continuous print piptonychia aldehyde reaction occurs under hot oxygen effect, cause material property deterioration even to be lost efficacy, significantly limit polyoxymethylene and further apply.Therefore the ageing-resistant modification carrying out polyoxymethylene is needed.
On polyoxymethylene molecular backbone chain, two adjacent oxygen atoms have stronger activation to methylene radical hydrogen atom, cause polyoxymethylene melt-processed and use in have obvious depolymerization tendency, particularly heat and oxygen work under the very easily chain rupture of its macromole, thermostability is poor.For the thermo-oxidative ageing modification of polyoxymethylene, multiselect polymeric amide and polyimide based resin be thermo-stabilizer, adopt the free radical that generates in various hindered phenolic antioxidant seizure system or adopt various containing nitrogen compound such as Dyhard RU 100, urea, trimeric cyanamide etc. catch formaldehyde.Such as E.I.Du Pont Company for thermo-stabilizer, improves the thermostability of Toughening of POM by TPU Elastomer with poly-carbodiimide high-temperature polymer.MIT has selected that heat-drawn wire is high, impact characteristics and the excellent special engineering plastics of processing fluidity gather the properties-correcting agent of pentanedioic acid imide as polyoxymethylene, also improves other performance while improve thermal characteristics.
The photodegradation of polyoxymethylene can form hydroxyl and carbonyl on its molecular chain, and along with the increase of carbonyl concentration, the ability that polyoxymethylene absorbs UV-light strengthens, and causes more splitting of chain.The light being directed to polyoxymethylene is stablized aging, and Nano-class zinc oxide and carbon black effectively can slow down the photodegradation process of polyoxymethylene.Such as E.I.Du Pont Company releases Ashlene R190H and the Ashlene R190H2 of Celon UV902, Ashley Polymer Company that Delrin527UV, Hoechst Celanese company releases, and is all in POM, add UV light absorber to prevent the weather resistant kind of ultraviolet induction POM weather stain.As can be seen here, the another focus that weathering resistance has become POM study on the modification is improved.
Patent 201210297008.X discloses a kind of high-toughness wear-resistant polyformaldehyde mixture and preparation method thereof, its main purpose improves wear resistance and the toughness of POM, adds a small amount of antioxidant 1010 mainly in order to improve processing stability and conventional use thermostability etc.; Patent 201310189041.5 discloses a kind of modification POM plastic, and it adds a small amount of photomask agent and oxidation inhibitor Main Function solves the problem of POM plastics in consistency, notch sensitivity and crocking resistance etc.; Patent 201010280691.7 discloses a kind of toughened polyoxymethylene blended modifier and preparation method thereof, and its main purpose improves the notched Izod impact strength of POM, improves the toughness of POM, and adding stablizer and lubricant is processibility in order to improve modified blends; The POM weather resistance that these three patents provide and heatproof oxidation performance could not effectively be improved, can not ensure POM material meet stronger Exposure to Sunlight in the summer environment traveling as outdoor in automobile of ultraviolet, compared with the weather resistance of high ambient temperature etc. and heatproof oxidation performance can service requirements.
Patent 201310001207.6 discloses a kind of automotive upholstery illumination aging resisting acetal plastic and preparation method thereof, its main purpose improves the anti-ultraviolet ageing performance of POM, adopt and dissimilar photostabilizer mixing is improved POM with the form of composite modifier, example enumerate built agent different ratios time the POM yellowness index of resistance to xenon lamp aging performance, and the maximum shortcoming of POM to be anti-ultraviolet ageing performance strong, do not mention this aging resistance index test in that patent.The application's patent adopts the compound system of light absorber, photostabilizer and photomask agent three, be not confined to the use of photostabilizer, the type of service of photostabilizer is different from patent 201310001207.6 simultaneously, and improves ultraviolet resistance and the heatproof air aging performance of POM simultaneously.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, there is provided a kind of balancing performance and weather-proof excellent polyoxymethylene blends and preparation method thereof, make the rigidity that modified polyoxymethylene still can keep it good under the long duration of action of multiple aging action, and tensile strength, elongation at break and notched Izod impact strength keep good.
In order to solve the problems of the technologies described above by the following technical solutions: a kind of automobile weathering resistance polyoxymethylene blends, is formed by the preparation of raw material of following weight per-cent: polyformaldehyde resin 80 ~ 98%, Benzotriazole Ultraviolet Stabilizer 0.1 ~ 5%, resistance amine photostabilizer 0.1 ~ 5%, photomask agent 0.1 ~ 5%, acid-acceptor 0.1 ~ 5%, oxidation inhibitor 0.1 ~ 5%, lubricant 0.1 ~ 5%.
Described polyoxymethylene is the multipolymer of trioxymethylene and dioxolane.
Described Benzotriazole Ultraviolet Stabilizer is one or more in 2 ~ (2 ˊ ~ hydroxyl ~ 5 ˊ ~ aminomethyl phenyl) benzotriazoles, 2 ~ (2 ˊ ~ hydroxyl ~ 3 ˊ, the tertiary phenyl of 5 ˊ ~ bis-) ~ 5 ~ chlorination benzotriazole or 2 ~ (2H ~ benzotriazole ~ 2 ~ yl) ~ 6 ~ dodecyl ~ 4 ~ cresols.
Described resistance amine photostabilizer is 2,4,6 ~ tri-(2 ~ hydroxyl ~ 4 ~ n-butoxyphenyl) ~ 1,3,5 s-triazine, succinic acid and (4 ~ hydroxyl ~ 2,2,6, the polymkeric substance of 6 ~ tetramethyl-~ 1 ~ piperidine alcohols) or two (1 ~ octyloxy ~ 2,2,6,6 ~ tetramethyl-piperidyl) one or more in SA ester.
Described photomask agent is one or more of titanium dioxide, zinc oxide or carbon black.
Described acid-acceptor is one or more of Dyhard RU 100 or trimeric cyanamide.
Described oxidation inhibitor is one or more of Hinered phenols antioxidant, suffocated amine antioxidant or phosphite kind antioxidant.
Described lubricant be stearic an alkali metal salt, silicone oil or imido one or more.
Described weathering resistance polyoxymethylene blends preparation technology is:
(1) polyoxymethylene is prepared against at being placed in air dry oven 80 ~ 90 DEG C and is used for dry 3 ~ 5 hours;
(2) percentage ratio takes raw material and even in high-speed mixer and mixing by weight;
(3) material mixed is added twin screw extruder by hopper, extruding pelletization, processing temperature is 150 ~ 200 DEG C, and screw speed is 200 ~ 400rpm;
(4) the weather-proof polyoxymethylene granulate of preparation to be put at air dry oven 80 ~ 100 DEG C dry 3 ~ 5 hours, finally obtain product.
Beneficial effect of the present invention is: by the polyformaldehyde material of composite obtained a kind of excellent performance of multiple weather-proof properties-correcting agent, through 1000 hours 340nm fluorescent ultraviolet lamp simulation aging after, stretching strength retentivity >90%, elongation at break conservation rate >50%, shock strength conservation rate >70%; After 120 DEG C of baking oven thermo-oxidative ageings of 1000 hours, stretching strength retentivity >95%, elongation at break conservation rate >85%, shock strength conservation rate >80%.Excellent combination property, can meet the application requiring of polyoxymethylene in the industry such as automobile, precision optical machinery.The present invention utilizes twin screw extruder to adopt the preparation technology of blending and modifying, simply effectively, is beneficial to operation, is easy to large-scale production.The present invention adopts the composite of photomask agent, UV light absorber and photostabilizer, the collaborative anti-ultraviolet ageing performance improving polyoxymethylene.Wherein photomask agent is the first line of defence, and its mode of action is uv reflectance; Light absorber is second defence line, and its mode of action is to enter the ultraviolet radiation absorption of goods, and is converted into harmless luminous energy; Last photostabilizer is three lines of defence, eliminates, stop causing two free radicals generated because of ultraviolet photooxidation reaction, thus the ultra-violet resistance of matrix can be significantly improved.The present invention adopts the composite of oxidation inhibitor and acid-acceptor, the collaborative heatproof air aging performance improving polyoxymethylene.Utilize stablizer to catch the free radical produced in system, formaldehyde and formic acid, improve capturing efficiency to reach the effect of heat oxygen aging resistance.The present invention effectively utilizes the synergy between antiaging agent, avoid the antagonistic action between antiaging agent, make the modified more similar modified composite material of ageing-resistant polyoxymethylene have more excellent performance, adding of Simultaneous Stabilization agent, make the processing stability of material better, and balancing performance.
Embodiment
Embodiment 1
A kind of weather-proof polyoxymethylene blends, forms by the preparation of raw material of following weight percent:
Polyformaldehyde resin 97.1 %
Benzotriazole Ultraviolet Stabilizer 0.5 %
Resistance amine photostabilizer 0.5 %
Photomask agent A 1%
Acid-acceptor 0.4 %
Oxidation inhibitor 0.3%
Lubricant 0.2%
Each component of said ratio is placed in mixing machine and fully mixes 3 ~ 5 minutes, then mixture is passed through twin screw extruder extruding pelletization.Processing temperature 150 ~ 175 DEG C, screw speed 300rpm, puts into baking oven with 80 DEG C of dryings 3 hours by obtained weather-proof polyoxymethylene granulate, finally obtains product.
Embodiment 2
A kind of weather-proof polyoxymethylene blends, forms by the preparation of raw material of following weight percent:
Polyformaldehyde resin 95.8 %
Benzotriazole Ultraviolet Stabilizer 0.6 %
Resistance amine photostabilizer 0.6 %
Photomask agent A 2 %
Acid-acceptor 0.5 %
Oxidation inhibitor 0.3 %
Lubricant 0.2%
Each component of said ratio is placed in mixing machine and fully mixes 3 ~ 5 minutes, then mixture is passed through twin screw extruder extruding pelletization.Processing temperature 150 ~ 175 DEG C, screw speed 300rpm, puts into baking oven with 80 DEG C of dryings 3 hours by obtained weather-proof polyoxymethylene granulate, finally obtains product.
Embodiment 3
A kind of weather-proof polyoxymethylene blends, forms by the preparation of raw material of following weight percent:
Polyformaldehyde resin 95.2%
Benzotriazole Ultraviolet Stabilizer 0.8 %
Resistance amine photostabilizer 0.8 %
Photomask agent B 2 %
Acid-acceptor 0.5 %
Oxidation inhibitor 0.5%
Lubricant 0.2 %
Each component of said ratio is placed in mixing machine and fully mixes 3 ~ 5 minutes, then mixture is passed through twin screw extruder extruding pelletization.Processing temperature 150 ~ 175 DEG C, screw speed 300rpm, puts into baking oven with 80 DEG C of dryings 3 hours by obtained weather-proof polyoxymethylene granulate, finally obtains product.
Embodiment 4
A kind of weather-proof polyoxymethylene blends, forms by the preparation of raw material of following weight percent:
Polyformaldehyde resin 94.3%
Benzotriazole Ultraviolet Stabilizer 0.8 %
Resistance amine photostabilizer 0.6 %
Photomask agent B 3 %
Acid-acceptor 0.6 %
Oxidation inhibitor 0.4 %
Lubricant 0.3 %
Each component of said ratio is placed in mixing machine and fully mixes 3 ~ 5 minutes, then mixture is passed through twin screw extruder extruding pelletization.Processing temperature 150 ~ 175 DEG C, screw speed 300rpm, puts into baking oven with 80 DEG C of dryings 3 hours by obtained weather-proof polyoxymethylene granulate, finally obtains product.
By the weather-proof polyformaldehyde material drying obtained by embodiment 1 ~ 4, be injection molded into iso standard print, test its mechanical property.
Ultraviolet ageing testing standard: ISO 4892 ~ 3 340nm ultraviolet lamp simulates aging 1000h;
Thermo-oxidative ageing testing standard: ASTM ~ D3045 oven temperature 120 DEG C, 1000h.
The aging front performance of the weather-proof modified polyformaldehyde material of test result case as each in table 1 ~ 2(and the pure material similar nature of polyoxymethylene, therefore unified numerical value)
Table 1 ultraviolet ageing results of property compares
| Tensile strength/MPa | Elongation at break/% | Shock strength/KJ/m 3 | |
| Before aging | 56.3 | 35.4 | 7.8 |
| After embodiment 1(is aging) | 55.3 | 29.4 | 5.5 |
| After embodiment 2(is aging) | 54.3 | 30.8 | 5.8 |
| After embodiment 3(is aging) | 54.1 | 28.4 | 6.2 |
| After embodiment 4(is aging) | 53.4 | 29.6 | 6.5 |
Table 2 thermal-oxidative aging property results contrast
| Tensile strength/MPa | Elongation at break/% | Shock strength/KJ/m 3 | |
| Before aging | 56.3 | 35.4 | 7.8 |
| After embodiment 1(is aging) | 61.4 | 30.2 | 6.1 |
| After embodiment 2(is aging) | 60.7 | 31.4 | 6.4 |
| After embodiment 3(is aging) | 62.4 | 29.4 | 5.7 |
| After embodiment 4(is aging) | 62.1 | 29.1 | 5.8 |
As can be seen from embodiment 1 ~ 4, after ultraviolet ageing, matrix material stretching strength retentivity >90%, elongation at break conservation rate >50%, shock strength conservation rate >70%; After thermo-oxidative ageing, stretching strength retentivity >95%, elongation at break conservation rate >85%, shock strength conservation rate >80%.The weather-proof polyoxymethylene blended modifier product that the present invention obtains, its ultraviolet aging resistance and thermal-oxidative aging property are significantly improved.
Embodiment 5
The automobile weathering resistance polyoxymethylene blends of the present embodiment, formed by the preparation of raw material of following weight per-cent: trioxymethylene and dioxolane resin 80%, 2 ~ (2 ˊ ~ hydroxyl ~ 5 ˊ ~ aminomethyl phenyl) benzotriazole 5%, 2,4,6 ~ tri-(2 ~ hydroxyl ~ 4 ~ n-butoxyphenyl) ~ 1,3,5 Strinoline %, titanium dioxide 2.5%, Dyhard RU 100 0.1%, Hinered phenols antioxidant 3%, stearic an alkali metal salt 4.4%.
The weathering resistance polyoxymethylene blends preparation technology of the present embodiment is:
(1) trioxymethylene and dioxolane resin copolymer are placed in air dry oven, within dry 3 ~ 5 hours at 80 ~ 90 DEG C, prepare against and use;
(2) percentage ratio takes raw material and even in high-speed mixer and mixing by weight;
(3) material mixed is added twin screw extruder by hopper, extruding pelletization, processing temperature is 170 ~ 200 DEG C, and screw speed is 200 ~ 400rpm;
(4) the weather-proof polyoxymethylene granulate of preparation to be put at air dry oven 80 ~ 100 DEG C dry 3 ~ 5 hours, finally obtain product.
Embodiment 6
The automobile weathering resistance polyoxymethylene blends of the present embodiment, formed by the preparation of raw material of following weight per-cent: trioxymethylene and dioxolane resin 93 %, 2 ~ (2 ˊ ~ hydroxyl ~ 3 ˊ, the tertiary phenyl of 5 ˊ ~ bis-) ~ 5 ~ chlorination benzotriazole 0.2%, succinic acid and (4 ~ hydroxyl ~ 2,2,6, the polymkeric substance 0.1% of 6 ~ tetramethyl-~ 1 ~ piperidine alcohols, zinc oxide 1.9 %, trimeric cyanamide 3%, suffocated amine antioxidant 0.2%, silicone oil 1.6%.
The weathering resistance polyoxymethylene blends preparation technology of the present embodiment is:
(1) trioxymethylene and dioxolane resin copolymer are placed in air dry oven, within dry 3 ~ 5 hours at 80 ~ 90 DEG C, prepare against and use;
(2) percentage ratio takes raw material and even in high-speed mixer and mixing by weight;
(3) material mixed is added twin screw extruder by hopper, extruding pelletization, processing temperature is 170 ~ 200 DEG C, and screw speed is 200 ~ 400rpm;
(4) the weather-proof polyoxymethylene granulate of preparation to be put at air dry oven 80 ~ 100 DEG C dry 3 ~ 5 hours, finally obtain product.
Embodiment 7
The automobile weathering resistance polyoxymethylene blends of the present embodiment, formed by the preparation of raw material of following weight per-cent: trioxymethylene and dioxolane resin 90%, 2 ~ (2H ~ benzotriazole ~ 2 ~ yl) ~ 6 ~ dodecyl ~ 4 ~ cresols 1%, two (1 ~ octyloxy ~ 2,2,6,6 ~ tetramethyl-piperidyl) SA ester 1%, carbon black 5%, trimeric cyanamide 1%, phosphite kind antioxidant 0.5%, silicone oil and imide 1.5%.
The weathering resistance polyoxymethylene blends preparation technology of the present embodiment is:
(1) trioxymethylene and dioxolane resin copolymer are placed in air dry oven, within dry 3 ~ 5 hours at 80 ~ 90 DEG C, prepare against and use;
(2) percentage ratio takes raw material and even in high-speed mixer and mixing by weight;
(3) material mixed is added twin screw extruder by hopper, extruding pelletization, processing temperature is 170 ~ 200 DEG C, and screw speed is 200 ~ 400rpm;
(4) the weather-proof polyoxymethylene granulate of preparation to be put at air dry oven 80 ~ 100 DEG C dry 3 ~ 5 hours, finally obtain product.
Embodiment 8
The automobile weathering resistance polyoxymethylene blends of the present embodiment, formed by the preparation of raw material of following weight per-cent: trioxymethylene and dioxolane resin 83.9%, 2 ~ (2 ˊ ~ hydroxyl ~ 5 ˊ ~ aminomethyl phenyl) benzotriazole 2%, 2,4,6 ~ tri-(2 ~ hydroxyl ~ 4 ~ n-butoxyphenyl) ~ 1,3,5 s-triazine 3%, titanium dioxide and zinc oxide 1%, Dyhard RU 100 5%, Hinered phenols antioxidant 5%, stearic an alkali metal salt 0.1%.
The weathering resistance polyoxymethylene blends preparation technology of the present embodiment is:
(1) trioxymethylene and dioxolane resin copolymer are placed in air dry oven, within dry 3 ~ 5 hours at 80 ~ 90 DEG C, prepare against and use;
(2) percentage ratio takes raw material and even in high-speed mixer and mixing by weight;
(3) material mixed is added twin screw extruder by hopper, extruding pelletization, processing temperature is 170 ~ 200 DEG C, and screw speed is 200 ~ 400rpm;
(4) the weather-proof polyoxymethylene granulate of preparation to be put at air dry oven 80 ~ 100 DEG C dry 3 ~ 5 hours, finally obtain product.
Embodiment 9
The automobile weathering resistance polyoxymethylene blends of the present embodiment, formed by the preparation of raw material of following weight per-cent: trioxymethylene and dioxolane resin 90%, 2 ~ (2 ˊ ~ hydroxyl ~ 3 ˊ, the tertiary phenyl of 5 ˊ ~ bis-) ~ 5 ~ chlorination benzotriazole 0.5%, succinic acid and (4 ~ hydroxyl ~ 2,2,6, the polymkeric substance 2.5% of 6 ~ tetramethyl-~ 1 ~ piperidine alcohols, zinc oxide 0.5%, trimeric cyanamide 0.5%, suffocated amine antioxidant 1%, silicone oil 5%.
The weathering resistance polyoxymethylene blends preparation technology of the present embodiment is:
(1) trioxymethylene and dioxolane resin copolymer are placed in air dry oven, within dry 3 ~ 5 hours at 80 ~ 90 DEG C, prepare against and use;
(2) percentage ratio takes raw material and even in high-speed mixer and mixing by weight;
(3) material mixed is added twin screw extruder by hopper, extruding pelletization, processing temperature is 170 ~ 200 DEG C, and screw speed is 200 ~ 400rpm;
(4) the weather-proof polyoxymethylene granulate of preparation to be put at air dry oven 80 ~ 100 DEG C dry 3 ~ 5 hours, finally obtain product.
Embodiment 10
The automobile weathering resistance polyoxymethylene blends of the present embodiment, formed by the preparation of raw material of following weight per-cent: trioxymethylene and dioxolane resin 85%, 2 ~ (2H ~ benzotriazole ~ 2 ~ yl) ~ 6 ~ dodecyl ~ 4 ~ cresols 2.5%, two (1 ~ octyloxy ~ 2,2,6,6 ~ tetramethyl-piperidyl) SA ester 0.5%, carbon black 4.5%, Dyhard RU 100 and trimeric cyanamide 2%, phosphite kind antioxidant 2.5%, imide 3%.
The weathering resistance polyoxymethylene blends preparation technology of the present embodiment is:
(1) trioxymethylene and dioxolane resin copolymer are placed in air dry oven, within dry 3 ~ 5 hours at 80 ~ 90 DEG C, prepare against and use;
(2) percentage ratio takes raw material and even in high-speed mixer and mixing by weight;
(3) material mixed is added twin screw extruder by hopper, extruding pelletization, processing temperature is 150 ~ 175 DEG C, and screw speed is 200 ~ 400rpm;
(4) the weather-proof polyoxymethylene granulate of preparation to be put at air dry oven 80 ~ 100 DEG C dry 3 ~ 5 hours, finally obtain product.
Claims (9)
1. an automobile weathering resistance polyoxymethylene blends, is characterized in that being formed by the preparation of raw material of following weight per-cent:
Polyformaldehyde resin 80 ~ 98%
Benzotriazole Ultraviolet Stabilizer 0.1 ~ 5%
Resistance amine photostabilizer 0.1 ~ 5%
Photomask agent 0.1 ~ 5%
Acid-acceptor 0.1 ~ 5%
Oxidation inhibitor 0.1 ~ 5%
Lubricant 0.1 ~ 5%.
2. a kind of automobile weathering resistance polyoxymethylene blends according to claim 1, is characterized in that described polyformaldehyde resin is the multipolymer of trioxymethylene resin and dioxolane resin.
3. a kind of automobile weathering resistance polyoxymethylene blends according to claim 1, it is characterized in that described Benzotriazole Ultraviolet Stabilizer is one or more in 2 ~ (2 ˊ ~ hydroxyl ~ 5 ˊ ~ aminomethyl phenyl) benzotriazoles, 2 ~ (2 ˊ ~ hydroxyl ~ 3 ˊ, the tertiary phenyl of 5 ˊ ~ bis-) ~ 5 ~ chlorination benzotriazole or 2 ~ (2H ~ benzotriazole ~ 2 ~ yl) ~ 6 ~ dodecyl ~ 4 ~ cresols.
4. a kind of automobile weathering resistance polyoxymethylene blends according to claim 1, it is characterized in that described resistance amine photostabilizer is 2,4,6 ~ tri-(2 ~ hydroxyl ~ 4 ~ n-butoxyphenyl) ~ 1,3,5 s-triazine, succinic acid and (4 ~ hydroxyl ~ 2,2,6, the polymkeric substance of 6 ~ tetramethyl-~ 1 ~ piperidine alcohols) or two (1 ~ octyloxy ~ 2,2,6,6 ~ tetramethyl-piperidyl) one or more in SA ester.
5. a kind of automobile weathering resistance polyoxymethylene blends according to claim 1, is characterized in that described photomask agent is one or more in titanium dioxide, zinc oxide or carbon black.
6. a kind of automobile weathering resistance polyoxymethylene blends according to claim 1, is characterized in that described acid-acceptor is one or more in Dyhard RU 100 or trimeric cyanamide.
7. a kind of automobile weathering resistance polyoxymethylene blends according to claim 1, is characterized in that described oxidation inhibitor is one or more in Hinered phenols antioxidant, suffocated amine antioxidant or phosphite kind antioxidant.
8. a kind of automobile weathering resistance polyoxymethylene blends according to claim 1, is characterized in that described lubricant is one or more in stearic an alkali metal salt, silicone oil or imide.
9. the preparation method of a kind of automobile weathering resistance polyoxymethylene blends according to claim 1 ~ 8 any one, is characterized in that step is as follows:
(1) polyoxymethylene is placed in air dry oven
80 ~ 90 DEG Clower dry 3 ~ 5 hours in order to using;
(2) percentage ratio takes raw material and even in high-speed mixer and mixing by weight;
(3) material mixed is added twin screw extruder by hopper, extruding pelletization, processing temperature is 150 ~ 200 DEG C, and screw speed is 200 ~ 400rpm;
(4) the weather-proof polyoxymethylene granulate of preparation to be put at air dry oven 80 ~ 100 DEG C dry 3 ~ 5 hours, finally obtain product.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107099115A (en) * | 2017-05-16 | 2017-08-29 | 广东盟信塑胶实业有限公司 | A kind of preparation method of photostability antistatic polyoxymethylene material |
| CN109181209A (en) * | 2018-09-30 | 2019-01-11 | 重庆鑫翎创福光电科技股份有限公司 | A kind of polyformaldehyde material composition |
| CN109320901A (en) * | 2018-10-25 | 2019-02-12 | 上海奇彩塑胶原料有限公司 | Weather-proof wear-resisting enhanced polyformaldehyde composite material and preparation method thereof |
| CN111004471A (en) * | 2019-11-25 | 2020-04-14 | 安徽华信安全设备有限公司 | Anti-aging safety helmet |
| CN112029226A (en) * | 2020-08-27 | 2020-12-04 | 金发科技股份有限公司 | Polyformaldehyde composition and preparation method and application thereof |
| CN112391028A (en) * | 2020-11-16 | 2021-02-23 | 南京中创智元科技有限公司 | Preparation method of high-temperature-resistant anti-ultraviolet polyformaldehyde engineering plastic |
| WO2022137671A1 (en) * | 2020-12-24 | 2022-06-30 | ポリプラスチックス株式会社 | Polyacetal resin composition |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042551A (en) * | 1988-11-10 | 1990-05-30 | 赫希斯特人造丝公司 | The polyoxymethylene moulding compositions of ultraviolet light stabilized |
| CN1732219A (en) * | 2002-12-26 | 2006-02-08 | 汎塑料株式会社 | Polyacetal resin composition and method for producing same |
| CN103740046A (en) * | 2013-12-31 | 2014-04-23 | 河南能源化工集团研究院有限公司 | Continuous long glass fiber reinforced polyformaldehyde material and preparation method thereof |
-
2014
- 2014-05-28 CN CN201410238180.7A patent/CN104371267A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042551A (en) * | 1988-11-10 | 1990-05-30 | 赫希斯特人造丝公司 | The polyoxymethylene moulding compositions of ultraviolet light stabilized |
| CN1732219A (en) * | 2002-12-26 | 2006-02-08 | 汎塑料株式会社 | Polyacetal resin composition and method for producing same |
| CN103740046A (en) * | 2013-12-31 | 2014-04-23 | 河南能源化工集团研究院有限公司 | Continuous long glass fiber reinforced polyformaldehyde material and preparation method thereof |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107099115B (en) * | 2017-05-16 | 2019-06-07 | 广东盟信塑胶实业有限公司 | A kind of preparation method of photostability antistatic polyoxymethylene material |
| CN107099115A (en) * | 2017-05-16 | 2017-08-29 | 广东盟信塑胶实业有限公司 | A kind of preparation method of photostability antistatic polyoxymethylene material |
| CN109181209A (en) * | 2018-09-30 | 2019-01-11 | 重庆鑫翎创福光电科技股份有限公司 | A kind of polyformaldehyde material composition |
| CN109320901A (en) * | 2018-10-25 | 2019-02-12 | 上海奇彩塑胶原料有限公司 | Weather-proof wear-resisting enhanced polyformaldehyde composite material and preparation method thereof |
| CN111004471A (en) * | 2019-11-25 | 2020-04-14 | 安徽华信安全设备有限公司 | Anti-aging safety helmet |
| WO2022041591A1 (en) * | 2020-08-27 | 2022-03-03 | 金发科技股份有限公司 | Polyoxymethylene composition, preparation method therefor and use thereof |
| CN112029226A (en) * | 2020-08-27 | 2020-12-04 | 金发科技股份有限公司 | Polyformaldehyde composition and preparation method and application thereof |
| CN112391028A (en) * | 2020-11-16 | 2021-02-23 | 南京中创智元科技有限公司 | Preparation method of high-temperature-resistant anti-ultraviolet polyformaldehyde engineering plastic |
| WO2022137671A1 (en) * | 2020-12-24 | 2022-06-30 | ポリプラスチックス株式会社 | Polyacetal resin composition |
| JP2022100492A (en) * | 2020-12-24 | 2022-07-06 | ポリプラスチックス株式会社 | Polyacetal resin composition |
| JP7204727B2 (en) | 2020-12-24 | 2023-01-16 | ポリプラスチックス株式会社 | Polyacetal resin composition |
| KR20230111263A (en) * | 2020-12-24 | 2023-07-25 | 포리프라스틱 가부시키가이샤 | Polyacetal Resin Composition |
| KR102629392B1 (en) | 2020-12-24 | 2024-01-25 | 포리프라스틱 가부시키가이샤 | Polyacetal resin composition |
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