CN103242621B - Modified POM (polyoxymethylene) plastic - Google Patents
Modified POM (polyoxymethylene) plastic Download PDFInfo
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- CN103242621B CN103242621B CN201310189041.5A CN201310189041A CN103242621B CN 103242621 B CN103242621 B CN 103242621B CN 201310189041 A CN201310189041 A CN 201310189041A CN 103242621 B CN103242621 B CN 103242621B
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Abstract
The invention relates to the field of plastic, in particular to modified POM (polyoxymethylene) plastic. The plastic comprises the following components in parts by weight: 40-80 parts of POM, 10-20 parts of PP (propene polymer), 5-10 parts of compatilizer, 5-8 parts of graphite, 1-3 parts of photomask agent, and 0.2-0.5 part of antioxygen. The modified POM plastic provided by the invention aims at solving the problems of compatibility, notch sensitivity and crocking resistance of the POM plastic in the prior art.
Description
Technical field
The present invention relates to plastic applications, particularly a kind of modification POM plastic.
Background technology
Polyoxymethylene (POM) has unique mechanical property, fabulous resistance to fatigue, good heat, electrical property and wear resistance, less creep properties, preferably size and chemical stability, is widely used in automobile, the industry such as electric.But, it also comes with some shortcomings part, its molecular chain structure is simply regular and spherulite size is large, cause and consistency between other polymkeric substance very poor, and notch sensitivity is large, impelling strength is low, poor heat resistance, frictional coefficient are larger, and these shortcomings significantly limit the range of application of POM in every field.Therefore need to carry out toughness reinforcing, wear-resisting modification to POM, to improve its notched Izod impact strength, improve its friction and wear behavior.Usually add the elastomerics such as urethane, rubber to improve its impact resistance, but elastomerics reduces the over-all properties of material while improving POM toughness.Therefore, the modification POM developing a kind of over-all properties good is necessary.
Summary of the invention
The object of the present invention is to provide a kind of modification POM plastic, to solve the problem of POM plastic in consistency, notch sensitivity and crocking resistance etc. in prior art.Technical scheme is as follows:
A kind of modification POM plastic, composed of the following components with weight part number scale:
POM 40-80 part
PP 10-20 part
Compatilizer 5-10 part
Graphite 5-8 part
Photomask agent 1-3 part
Oxidation inhibitor 0.2-0.5 part
Described compatilizer is PP-g-ST or PP-g-MAH.
Described graphite is through through surface grafting process.
Described surface is directly treated to: react after graphite, hexanolactam, water, acetic acid mixing under High Temperature High Pressure.
Described photomask agent is zinc oxide or titanium dioxide.
Described oxidation inhibitor is described oxidation inhibitor is four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester, β-(4-hydroxy phenyl-3,5-di-t-butyl) the positive octadecanol ester of propionic acid, 2,6-ditertbutylparacresol or 4,4 '-thiobis (the 6-tertiary butyl-3-(methyl) phenol).
The present invention is just blended with POM with polypropylene (PP), and PP has good mechanical property, and its tensile strength is good, shock resistance is good, particularly notched Izod impact hits, and these features and POM form complementation, and the POM after PP blending and modifying has better mechanical property and moulding processability; Graphite is through surface grafting process, good dispersion in PP/POM co-mixing system, the blended of graphite adds, serve enhancement on the one hand, abrasion loss is reduced, and graphite also serves the effect of lubricant on the other hand, in friction process, graphite is easy on flour milling, form one deck transfer film, so also can reduce wear.
Embodiment
In order to better understand and implement, describe the present invention in detail below in conjunction with embodiment.
Autoclave is put into by after hexanolactam 10 parts, 5 parts, graphite, 1 part, water, acetic acid 0.1 part mixing, obtained by the graphite of grafting process.
Embodiment 1
By POM 40 parts, PP 10 parts, compatilizer PP-g-ST5 part, through 5 parts, the graphite of grafting process, 1 part, photomask agent zinc oxide, oxidation inhibitor four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester 0.2 part, be pre-mixed in high-speed mixer, then extruded by parallel double-screw mixing extruder, cooling granulation.
Embodiment 2
By POM 55 parts, PP 13 parts, Compatibilizer PP-g-MAH 6 parts, through 6 parts, the graphite of grafting process, photomask agent titanium dioxide 2 parts, oxidation inhibitor β-(4-hydroxy phenyl-3,5-di-t-butyl) the positive octadecanol ester of propionic acid 0.3 part, be pre-mixed in high-speed mixer, then extruded by parallel double-screw mixing extruder, cooling granulation.
Embodiment 3
By POM 70 parts, PP 16 parts, compatilizer PP-g-ST8 part, through 7 parts, the graphite of grafting process, 2 parts, photomask agent zinc oxide, oxidation inhibitor 2,6 ditertiary butyl p cresol 0.4 part, be pre-mixed in high-speed mixer, then extruded by parallel double-screw mixing extruder, cooling granulation.
Embodiment 4
By POM 80 parts, PP 20 parts, Compatibilizer PP-g-MAH 10 parts, through 8 parts, the graphite of grafting process, photomask agent titanium dioxide 3 parts, oxidation inhibitor 4,4 '-thiobis (the 6-tertiary butyl-3-(methyl) phenol) 0.5 part, be pre-mixed in high-speed mixer, then extruded by parallel double-screw mixing extruder, cooling granulation.
Test previous embodiment 1-4 products obtained therefrom, obtains as shown in the results summarized in table 1.Wherein notched Izod impact strength presses GB/T1043-1993 test; Tensile property presses GB/T1040-1992 test, and draw speed is 10mm/min; Bending property presses GB/T9341-2000 test, and test speed is 2mm/min, and polishing machine presses GB/T3960-1983 test.
Table 1
The foregoing is only preferred embodiment of the present invention, do not limit the present invention, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, all drop in protection scope of the present invention.
Claims (3)
1. a modification POM plastic, is characterized in that, composed of the following components with weight parts:
POM 50-80 part
PP 10-20 part
Compatilizer 5-10 part
Graphite 5-8 part
Photomask agent 1-3 part
Oxidation inhibitor 0.2-0.5 part; Described compatilizer is PP-g-ST or PP-g-MAH; Described graphite is through surface grafting process, and described surface grafting is treated to: react after graphite, hexanolactam, water, acetic acid mixing under High Temperature High Pressure.
2. a kind of modification POM plastic according to claim 1, is characterized in that, described photomask agent is zinc oxide or titanium dioxide.
3. a kind of modification POM plastic according to claim 1, it is characterized in that, described oxidation inhibitor is four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester, β-(4-hydroxy phenyl-3,5-di-t-butyl) the positive octadecanol ester of propionic acid, 2,6-ditertbutylparacresol or 4,4'-thiobis (the 6-tertiary butyl-3-(methyl) phenol).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310189041.5A CN103242621B (en) | 2013-05-21 | 2013-05-21 | Modified POM (polyoxymethylene) plastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310189041.5A CN103242621B (en) | 2013-05-21 | 2013-05-21 | Modified POM (polyoxymethylene) plastic |
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| Publication Number | Publication Date |
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| CN103242621A CN103242621A (en) | 2013-08-14 |
| CN103242621B true CN103242621B (en) | 2015-03-04 |
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| CN201310189041.5A Active CN103242621B (en) | 2013-05-21 | 2013-05-21 | Modified POM (polyoxymethylene) plastic |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103709513B (en) * | 2013-12-26 | 2016-05-11 | 苏州万图明电子软件有限公司 | A kind of polyformaldehyde and Composite Modification for Polypropylene plastics |
| CN111118645A (en) * | 2020-01-03 | 2020-05-08 | 西安交通大学 | Preparation method of ultrahigh-strength polyformaldehyde fiber |
| CN111152432B (en) * | 2020-01-13 | 2022-03-11 | 默帝珂环保设备(上海)有限公司 | Production process of plastic chain of mud scraper |
| CN112646271A (en) * | 2020-12-21 | 2021-04-13 | 江苏岚智橡塑材料有限公司 | PP/POM alloy material and preparation method thereof |
| CN112831123A (en) * | 2021-01-06 | 2021-05-25 | 江苏岚智橡塑材料有限公司 | Flame-retardant PP/POM alloy material and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1239605C (en) * | 2003-12-18 | 2006-02-01 | 云南云天化股份有限公司 | Copolymerized formol/polyolefine or copolymerized olefine elastomeric composite modified material and its preparation |
| CN101205347A (en) * | 2006-12-20 | 2008-06-25 | 上海日之升新技术发展有限公司 | Preparation of high-ductility polyformaldehyde material with excellent comprehensive properties |
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