CN105199307A - Stably modified polyformaldehyde material and preparation method thereof - Google Patents
Stably modified polyformaldehyde material and preparation method thereof Download PDFInfo
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- CN105199307A CN105199307A CN201510581483.3A CN201510581483A CN105199307A CN 105199307 A CN105199307 A CN 105199307A CN 201510581483 A CN201510581483 A CN 201510581483A CN 105199307 A CN105199307 A CN 105199307A
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Abstract
The invention discloses a stably modified polyformaldehyde material. The stably modified polyformaldehyde material is prepared from the following raw materials in parts by weight: 62 to 85 parts of polyformaldehyde, 5 to 9 parts of carbon black, 4 to 13 parts of triethanolamine, 3 to 9 parts of dicyandiamide, 4 to 8 parts of ammonium molybdate, 2 to 10 parts of triphenyl phosphate, 3 to 8 parts of methyl stearate, 2 to 9 parts of 2-hydroxy-4-methoxybenzophenone, 3 to 10 parts of calcium hydroxide, 2 to 6 parts of magnesium carbonate, 3 to 9 parts of zinc sulfate, 2 to 7 parts of organic titanium, 3 to 8 parts of urea, 2 to 7 parts of tourmaline and 1 to 5 parts of antioxidant. The invention further discloses a preparation method of the stably modified polyformaldehyde material. According to the polyformaldehyde material prepared by using the preparation method, the range of the heat resistant temperature is 123 to 135 DEG C, the tensile strength is 76 to 96 MPa after being irradiated by a 1000h xenon lamp, the notch impact strength is 8.6 to 10.3 KJ/m<2>, and the polyformaldehyde material has the advantages of good heat resistance and aging resistance and good stability and is suitable for a larger applicable range.
Description
Technical field
The present invention relates to polymeric material field, particularly a kind of polyformaldehyde material and preparation method thereof of stabilizing modification.
Background technology
Polyoxymethylene (POM) has excellent mechanical property, electrical property, wearability, resistance to fatigue and resistance to corrosive chemicals, self-lubricating property is particularly outstanding, specific tenacity and specific rigidity are close to metal, it is the ideal material substituting the nonferrous metal and alloys such as copper, aluminium, zinc at present, there is the title of " metals in plastics ", the fields such as automobile, machinofacture, precision instrument, electronic apparatus, military project can be widely used in.But, because polyoxymethylene molecular backbone chain exists more weak ehter bond, under light, heat effect, easily generate free radical and take off Formaldehyde decomposition, oxidation of formaldehyde formic acid promotes the carrying out of thermal decomposition process further, so weathering resistance is poor, easily degrade in outdoor application for a long time and make material property deterioration, impelling strength and elongation at break significantly decline.
Summary of the invention
The technical problem solved is: in order to solve the problem of traditional polyformaldehyde material poor stability, provide polyformaldehyde material of a kind of stabilizing modification and preparation method thereof.
Technical scheme: in order to solve the problem, the invention provides a kind of polyformaldehyde material of stabilizing modification, be prepared from by the feed composition of following parts by weight: polyoxymethylene 62 ~ 85 parts, carbon black 5 ~ 9 parts, trolamine 4 ~ 13 parts, Dyhard RU 100 3 ~ 9 parts, ammonium molybdate 4 ~ 8 parts, triphenylphosphate 2 ~ 10 parts, methyl stearate 3 ~ 8 parts, ESCALOL 567 2 ~ 9 parts, 3 ~ 10 parts, calcium hydroxide, 2 ~ 6 parts, magnesiumcarbonate, 3 ~ 9 parts, zinc sulfate, organic titanium 2 ~ 7 parts, 3 ~ 8 parts, urea, strange 2 ~ 7 parts, ice stone and 1 ~ 5 part, oxidation inhibitor.
Preferably, the polyformaldehyde material of described a kind of stabilizing modification, is prepared from by the feed composition of following parts by weight: polyoxymethylene 62 ~ 80 parts, carbon black 5 ~ 8 parts, trolamine 4 ~ 9 parts, Dyhard RU 100 3 ~ 7 parts, ammonium molybdate 4 ~ 8 parts, triphenylphosphate 2 ~ 9 parts, methyl stearate 3 ~ 7 parts, ESCALOL 567 2 ~ 9 parts, 3 ~ 8 parts, calcium hydroxide, 2 ~ 6 parts, magnesiumcarbonate, 3 ~ 8 parts, zinc sulfate, organic titanium 2 ~ 7 parts, 3 ~ 6 parts, urea, strange 2 ~ 6 parts, ice stone and 1 ~ 3 part, oxidation inhibitor.
Preferably, the polyformaldehyde material of described a kind of stabilizing modification, is prepared from by the feed composition of following parts by weight: polyoxymethylene 78 parts, carbon black 7 parts, trolamine 8 parts, Dyhard RU 100 6 parts, ammonium molybdate 6 parts, triphenylphosphate 8 parts, methyl stearate 5 parts, ESCALOL 567 6 parts, 7 parts, calcium hydroxide, 4 parts, magnesiumcarbonate, 7 parts, zinc sulfate, organic titanium 3 parts, 4 parts, urea, strange 3 parts, ice stone and 2 parts, oxidation inhibitor.
Preferably, described oxidation inhibitor is triglycol-two-3-(the 3-tertiary butyl-4 hydroxyl-5 aminomethyl phenyl) propionic ester.
The preparation method of the polyformaldehyde material of described a kind of stabilizing modification, comprises the following steps:
Step one: take raw material according to certainweight number;
Step 2: add in high-speed mixer by each raw material in step one, blended 10 ~ 20min, obtains blend composition;
Step 3: blend composition is added in twin screw extruder, setting each regional temperature is: 150 ~ 160 DEG C, a district, two 180 ~ 200 DEG C, districts, three 190 ~ 210 DEG C, districts, four 180 ~ 190 DEG C, districts, five 170 ~ 180 DEG C, districts; Screw speed is 50 ~ 120rpm, extruding pelletization;
Step 4: particle granulation in step 3 formed is placed in injection moulding machine, with 38 ~ 70MPa pressure, carries out injection moulding at 190 DEG C, namely obtains required polyformaldehyde material after cooling.
Preferably, in described step 3, in twin screw extruder, set each regional temperature is: 160 DEG C, a district, two 190 DEG C, districts, three 200 DEG C, districts, four 185 DEG C, districts, five 170 DEG C, districts; Described screw speed is 80rpm.
Preferably, in described step one, the parts by weight of each raw material are: polyoxymethylene 78 parts, carbon black 7 parts, trolamine 8 parts, Dyhard RU 100 6 parts, ammonium molybdate 6 parts, triphenylphosphate 8 parts, methyl stearate 5 parts, ESCALOL 567 6 parts, 7 parts, calcium hydroxide, 4 parts, magnesiumcarbonate, 7 parts, zinc sulfate, organic titanium 3 parts, 4 parts, urea, strange 3 parts, ice stone and 2 parts, oxidation inhibitor.
The present invention has following beneficial effect: the heat resisting temperature scope of the polyformaldehyde material prepared by the present invention is 123 ~ 135 DEG C; The postradiation tensile strength of 1000h xenon lamp is 76 ~ 96MPa, and notched Izod impact strength is 8.6 ~ 10.3KJ/m
2, show good resistance toheat and ageing-resistant performance, stability is better, is applicable to larger range of application.
Embodiment
In order to understand the present invention further, below in conjunction with embodiment, invention preferred embodiment is described, but should be appreciated that these describe just for further illustrating the features and advantages of the present invention, instead of limiting to the claimed invention.
Embodiment 1
A polyformaldehyde material for stabilizing modification, is prepared from by the feed composition of following parts by weight: polyoxymethylene 62 parts, carbon black 5 parts, trolamine 4 parts, Dyhard RU 100 3 parts, ammonium molybdate 4 parts, triphenylphosphate 2 parts, methyl stearate 3 parts, ESCALOL 567 2 parts, 3 parts, calcium hydroxide, 2 parts, magnesiumcarbonate, 3 parts, zinc sulfate, organic titanium 2 parts, 3 parts, urea, strange 2 parts, ice stone and 1 part, oxidation inhibitor.
Wherein, described oxidation inhibitor is triglycol-two-3-(the 3-tertiary butyl-4 hydroxyl-5 aminomethyl phenyl) propionic ester.
The preparation method of above-mentioned polyformaldehyde material, comprises the following steps:
Step one: take raw material according to certainweight number;
Step 2: add in high-speed mixer by each raw material in step one, blended 10min, obtains blend composition;
Step 3: blend composition is added in twin screw extruder, setting each regional temperature is: 150 DEG C, a district, two 180 DEG C, districts, three 190 DEG C, districts, four 180 DEG C, districts, five 170 DEG C, districts; Screw speed is 50rpm, extruding pelletization;
Step 4: particle granulation in step 3 formed is placed in injection moulding machine, with 38MPa pressure, carries out injection moulding at 190 DEG C, namely obtains required polyformaldehyde material after cooling.
Embodiment 2
A polyformaldehyde material for stabilizing modification, is prepared from by the feed composition of following parts by weight: polyoxymethylene 85 parts, carbon black 9 parts, trolamine 13 parts, Dyhard RU 100 9 parts, ammonium molybdate 8 parts, triphenylphosphate 10 parts, methyl stearate 8 parts, ESCALOL 567 9 parts, 10 parts, calcium hydroxide, 6 parts, magnesiumcarbonate, 9 parts, zinc sulfate, organic titanium 7 parts, 8 parts, urea, strange 7 parts, ice stone and 5 parts, oxidation inhibitor.
Wherein, described oxidation inhibitor is triglycol-two-3-(the 3-tertiary butyl-4 hydroxyl-5 aminomethyl phenyl) propionic ester.
The preparation method of above-mentioned polyformaldehyde material, comprises the following steps:
Step one: take raw material according to certainweight number;
Step 2: add in high-speed mixer by each raw material in step one, blended 20min, obtains blend composition;
Step 3: blend composition is added in twin screw extruder, setting each regional temperature is: 160 DEG C, a district, two 200 DEG C, districts, three 210 DEG C, districts, four 190 DEG C, districts, five 180 DEG C, districts; Screw speed is 120rpm, extruding pelletization;
Step 4: particle granulation in step 3 formed is placed in injection moulding machine, with 70MPa pressure, carries out injection moulding at 190 DEG C, namely obtains required polyformaldehyde material after cooling.
Embodiment 3
A polyformaldehyde material for stabilizing modification, is prepared from by the feed composition of following parts by weight: polyoxymethylene 74 parts, carbon black 7 parts, trolamine 8 parts, Dyhard RU 100 6 parts, ammonium molybdate 6 parts, triphenylphosphate 6 parts, methyl stearate 5 parts, ESCALOL 567 5 parts, 6 parts, calcium hydroxide, 4 parts, magnesiumcarbonate, 6 parts, zinc sulfate, organic titanium 4 parts, 5 parts, urea, strange 4 parts, ice stone and 3 parts, oxidation inhibitor.
Wherein, described oxidation inhibitor is triglycol-two-3-(the 3-tertiary butyl-4 hydroxyl-5 aminomethyl phenyl) propionic ester.
The preparation method of above-mentioned polyformaldehyde material, comprises the following steps:
Step one: take raw material according to certainweight number;
Step 2: add in high-speed mixer by each raw material in step one, blended 15min, obtains blend composition;
Step 3: blend composition is added in twin screw extruder, setting each regional temperature is: 155 DEG C, a district, two 190 DEG C, districts, three 195 DEG C, districts, four 185 DEG C, districts, five 175 DEG C, districts; Screw speed is 70rpm, extruding pelletization;
Step 4: particle granulation in step 3 formed is placed in injection moulding machine, with 54MPa pressure, carries out injection moulding at 190 DEG C, namely obtains required polyformaldehyde material after cooling.
Embodiment 4
A polyformaldehyde material for stabilizing modification, is prepared from by the feed composition of following parts by weight: polyoxymethylene 78 parts, carbon black 7 parts, trolamine 8 parts, Dyhard RU 100 6 parts, ammonium molybdate 6 parts, triphenylphosphate 8 parts, methyl stearate 5 parts, ESCALOL 567 6 parts, 7 parts, calcium hydroxide, 4 parts, magnesiumcarbonate, 7 parts, zinc sulfate, organic titanium 3 parts, 4 parts, urea, strange 3 parts, ice stone and 2 parts, oxidation inhibitor.
Wherein, described oxidation inhibitor is triglycol-two-3-(the 3-tertiary butyl-4 hydroxyl-5 aminomethyl phenyl) propionic ester.
The preparation method of above-mentioned polyformaldehyde material, comprises the following steps:
Step one: take raw material according to certainweight number;
Step 2: add in high-speed mixer by each raw material in step one, blended 20min, obtains blend composition;
Step 3: blend composition is added in twin screw extruder, setting each regional temperature is: 160 DEG C, a district, two 190 DEG C, districts, three 200 DEG C, districts, four 185 DEG C, districts, five 170 DEG C, districts; Screw speed is 80rpm, extruding pelletization;
Step 4: particle granulation in step 3 formed is placed in injection moulding machine, with 55MPa pressure, carries out injection moulding at 190 DEG C, namely obtains required polyformaldehyde material after cooling.
Embodiment 5
A polyformaldehyde material for stabilizing modification, is prepared from by the feed composition of following parts by weight: polyoxymethylene 80 parts, carbon black 8 parts, trolamine 9 parts, Dyhard RU 100 7 parts, ammonium molybdate 8 parts, triphenylphosphate 9 parts, methyl stearate 7 parts, ESCALOL 567 8 parts, 8 parts, calcium hydroxide, 5 parts, magnesiumcarbonate, 8 parts, zinc sulfate, organic titanium 7 parts, 6 parts, urea, strange 6 parts, ice stone and 3 parts, oxidation inhibitor.
Wherein, described oxidation inhibitor is triglycol-two-3-(the 3-tertiary butyl-4 hydroxyl-5 aminomethyl phenyl) propionic ester.
The preparation method of above-mentioned polyformaldehyde material, comprises the following steps:
Step one: take raw material according to certainweight number;
Step 2: add in high-speed mixer by each raw material in step one, blended 15min, obtains blend composition;
Step 3: blend composition is added in twin screw extruder, setting each regional temperature is: 160 DEG C, a district, two 190 DEG C, districts, three 200 DEG C, districts, four 185 DEG C, districts, five 170 DEG C, districts; Screw speed is 70rpm, extruding pelletization;
Step 4: particle granulation in step 3 formed is placed in injection moulding machine, with 40MPa pressure, carries out injection moulding at 190 DEG C, namely obtains required polyformaldehyde material after cooling.
Performance test
Below for carrying out performance test to the polyformaldehyde material prepared by the various embodiments described above, refer to following table:
Experimental result shows, and compared to common polyformaldehyde material, after the heat resisting temperature of the polyformaldehyde material prepared by the present invention and 1000h xenon lamp irradiate, Mechanics Performance Testing is all better than common polyformaldehyde material.The heat resisting temperature scope of the polyformaldehyde material prepared by the present invention is 123 ~ 135 DEG C; The postradiation tensile strength of 1000h xenon lamp is 76 ~ 96MPa, and notched Izod impact strength is 8.6 ~ 10.3KJ/m
2, show good resistance toheat and ageing-resistant performance, stability is better, is applicable to larger range of application.
The foregoing is only the specific embodiment of the present invention; but these are the simple description to mentality of designing of the present invention; instead of the restriction to mentality of designing of the present invention, any do not exceed mentality of designing of the present invention combination, increase or amendment, all fall into protection scope of the present invention.
Claims (7)
1. a polyformaldehyde material for stabilizing modification, is characterized in that: be prepared from by the feed composition of following parts by weight: polyoxymethylene 62 ~ 85 parts, carbon black 5 ~ 9 parts, trolamine 4 ~ 13 parts, Dyhard RU 100 3 ~ 9 parts, ammonium molybdate 4 ~ 8 parts, triphenylphosphate 2 ~ 10 parts, methyl stearate 3 ~ 8 parts, ESCALOL 567 2 ~ 9 parts, 3 ~ 10 parts, calcium hydroxide, 2 ~ 6 parts, magnesiumcarbonate, 3 ~ 9 parts, zinc sulfate, organic titanium 2 ~ 7 parts, 3 ~ 8 parts, urea, strange 2 ~ 7 parts, ice stone and 1 ~ 5 part, oxidation inhibitor.
2. the polyformaldehyde material of a kind of stabilizing modification according to claim 1, is characterized in that: be prepared from by the feed composition of following parts by weight: polyoxymethylene 62 ~ 80 parts, carbon black 5 ~ 8 parts, trolamine 4 ~ 9 parts, Dyhard RU 100 3 ~ 7 parts, ammonium molybdate 4 ~ 8 parts, triphenylphosphate 2 ~ 9 parts, methyl stearate 3 ~ 7 parts, ESCALOL 567 2 ~ 9 parts, 3 ~ 8 parts, calcium hydroxide, 2 ~ 6 parts, magnesiumcarbonate, 3 ~ 8 parts, zinc sulfate, organic titanium 2 ~ 7 parts, 3 ~ 6 parts, urea, strange 2 ~ 6 parts, ice stone and 1 ~ 3 part, oxidation inhibitor.
3. the polyformaldehyde material of a kind of stabilizing modification according to claim 1, is characterized in that: be prepared from by the feed composition of following parts by weight: polyoxymethylene 78 parts, carbon black 7 parts, trolamine 8 parts, Dyhard RU 100 6 parts, ammonium molybdate 6 parts, triphenylphosphate 8 parts, methyl stearate 5 parts, ESCALOL 567 6 parts, 7 parts, calcium hydroxide, 4 parts, magnesiumcarbonate, 7 parts, zinc sulfate, organic titanium 3 parts, 4 parts, urea, strange 3 parts, ice stone and 2 parts, oxidation inhibitor.
4. the polyformaldehyde material of a kind of stabilizing modification according to claim 1, is characterized in that: described oxidation inhibitor is triglycol-two-3-(the 3-tertiary butyl-4 hydroxyl-5 aminomethyl phenyl) propionic ester.
5. a preparation method for the polyformaldehyde material of a kind of stabilizing modification as claimed in claim 1, is characterized in that: comprise the following steps:
Step one: take raw material according to certainweight number;
Step 2: add in high-speed mixer by each raw material in step one, blended 10 ~ 20min, obtains blend composition;
Step 3: blend composition is added in twin screw extruder, setting each regional temperature is: 150 ~ 160 DEG C, a district, two 180 ~ 200 DEG C, districts, three 190 ~ 210 DEG C, districts, four 180 ~ 190 DEG C, districts, five 170 ~ 180 DEG C, districts; Screw speed is 50 ~ 120rpm, extruding pelletization;
Step 4: particle granulation in step 3 formed is placed in injection moulding machine, with 38 ~ 70MPa pressure, carries out injection moulding at 190 DEG C, namely obtains required polyformaldehyde material after cooling.
6. the preparation method of the polyformaldehyde material of a kind of stabilizing modification according to claim 5, is characterized in that: in described step 3, and in twin screw extruder, set each regional temperature is: 160 DEG C, a district, two 190 DEG C, districts, three 200 DEG C, districts, four 185 DEG C, districts, five 170 DEG C, districts; Described screw speed is 80rpm.
7. the preparation method of the polyformaldehyde material of a kind of stabilizing modification according to claim 5, is characterized in that: in described step one, the parts by weight of each raw material are: polyoxymethylene 78 parts, carbon black 7 parts, trolamine 8 parts, Dyhard RU 100 6 parts, ammonium molybdate 6 parts, triphenylphosphate 8 parts, methyl stearate 5 parts, ESCALOL 567 6 parts, 7 parts, calcium hydroxide, 4 parts, magnesiumcarbonate, 7 parts, zinc sulfate, organic titanium 3 parts, 4 parts, urea, strange 3 parts, ice stone and 2 parts, oxidation inhibitor.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107459760A (en) * | 2017-09-21 | 2017-12-12 | 上海中镭新材料科技有限公司 | A kind of polyformaldehyde material and preparation method thereof |
| CN109082069A (en) * | 2018-09-21 | 2018-12-25 | 佛山市禅城区诺高环保科技有限公司 | A kind of preparation method of thermal oxidation stability type polyformaldehyde |
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| CN102993626A (en) * | 2012-08-22 | 2013-03-27 | 广东威林工程塑料有限公司 | Anti-inflaming reinforced and toughened POM (polyformaldehyde) composite and preparation method thereof |
| CN103613902A (en) * | 2013-11-25 | 2014-03-05 | 大连路阳科技开发有限公司 | Heat-conducting friction-resistant polyformaldehyde composite material and preparation method thereof |
| CN104341710A (en) * | 2014-10-27 | 2015-02-11 | 开封龙宇化工有限公司 | Wear-resistant antistatic composite material for electronic device parts and preparation method thereof |
-
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- 2015-09-14 CN CN201510581483.3A patent/CN105199307A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102993626A (en) * | 2012-08-22 | 2013-03-27 | 广东威林工程塑料有限公司 | Anti-inflaming reinforced and toughened POM (polyformaldehyde) composite and preparation method thereof |
| CN103613902A (en) * | 2013-11-25 | 2014-03-05 | 大连路阳科技开发有限公司 | Heat-conducting friction-resistant polyformaldehyde composite material and preparation method thereof |
| CN104341710A (en) * | 2014-10-27 | 2015-02-11 | 开封龙宇化工有限公司 | Wear-resistant antistatic composite material for electronic device parts and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107459760A (en) * | 2017-09-21 | 2017-12-12 | 上海中镭新材料科技有限公司 | A kind of polyformaldehyde material and preparation method thereof |
| CN107459760B (en) * | 2017-09-21 | 2019-09-27 | 上海中镭新材料科技有限公司 | A kind of polyformaldehyde material and preparation method thereof |
| CN109082069A (en) * | 2018-09-21 | 2018-12-25 | 佛山市禅城区诺高环保科技有限公司 | A kind of preparation method of thermal oxidation stability type polyformaldehyde |
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