CN104880378A - Method for measuring copper content in copper-containing master batch for copper root removal dripper - Google Patents
Method for measuring copper content in copper-containing master batch for copper root removal dripper Download PDFInfo
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- CN104880378A CN104880378A CN201510236980.XA CN201510236980A CN104880378A CN 104880378 A CN104880378 A CN 104880378A CN 201510236980 A CN201510236980 A CN 201510236980A CN 104880378 A CN104880378 A CN 104880378A
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Abstract
The invention provides a method for measuring copper content in copper-containing master batch for a copper root removal dripper. A dissolving-precipitation separation method is adopted, distilled water and decahydronaphthalene and/or tetrahydronaphthalene are adopted as a solvent, the master batch is dissolved under heating conditions, a solution is layered, wherein the distilled water is at the lower part, tetrahydronaphthalene and/or decahydronaphthalene are/is at the upper part, polyethylene contained in the master batch is at the upper layer, the copper with relatively high density and a small amount of insoluble inorganic matter fall in the distilled water at the lower layer or at the bottom of a flask, and the copper content can be obtained through a formula. According to the method, the copper content in the copper-containing master batch can be correctly measured, and the method is concise and feasible, and the cost is low, and the method can be used for a production process and product quality control.
Description
Technical field
The invention belongs to tenor and measure field, especially relate to a kind of copper that measures and to dispel the method for copper content in root water dropper cupric masterbatch.
Background technology
Copper is a kind of metallic chemical element, is also the necessary a kind of trace element of human body, and copper is also one of mankind's metal of finding the earliest, is the widely used a kind of metals of the mankind, belongs to heavy metal.There are some researches show, heavy metal copper is not only the indispensable element of plant growth, can interact with the organic acid of plant secretion again and produce bivalent cupric ion, reach when copper ion accumulated concentrations or when certain limit is interval, coercive inhibiting effect will be produced to crop especially root growth.
Drip irrigation below the surface is one of irrigation technique of economizing on water most in current world wide, it has plurality of advantages, having become one of canonical form of micro irrigation technology application, is the drip irrigation product of new generation representing the future of agriculture development of water saving irrigation trend, will lead China's agricultural water-saving irrigation development new direction.The core parts of drip irrigation below the surface are buried douches, but grow because of the hydrotropism of plant roots, the hair root of crop can be made to enter the weeper of douche, result in blockage, and for addressing this problem, copper root water dropper of dispelling is developed and designs.
The copper number of copper content in root water dropper cupric masterbatch of dispelling then directly affects the production capacity of injection machine.Therefore set up a kind of detection method being suitable for copper content in low cost, the succinctly easy cupric masterbatch of enterprise's use, contribute to enterprise and carry out production technology and end product quality control, and relevant detection method not yet has clear and definite bibliographical information so far.
Summary of the invention
The invention provides a kind of copper that measures to dispel the method for copper content in root water dropper cupric masterbatch, the method can copper content in Accurate Determining masterbatch, is suitable for enterprise for the production of the control of technique and quality control.
The technical solution used in the present invention is:
Measure copper to dispel the method for copper content in root water dropper cupric masterbatch, comprise the steps:
S1: the cupric masterbatch taking certain mass with analytical balance, obtains quality m
0;
S2: get a clean flask, first add distilled water, then add naphthane and/or decahydronaphthalene, be placed in one by cupric masterbatch, under nitrogen protection state, heating for dissolving forms limpid solution;
S3: allow the clear solution Temperature fall generated, is dissolved in the material cooling in naphthane and/or decahydronaphthalene, crystallization forms precipitation, take out sediment, dry with distilled water cleaning final vacuum, obtains quality m
1;
S4: the massfraction calculating copper in cupric masterbatch according to following formula:
S5: repeat step S1-S4, replicate determination many groups, obtains mean value and be copper content in masterbatch.
As preferred embodiments of the present invention, the cupric masterbatch quality added: naphthane and/or decahydronaphthalene volume: distilled water volume=1-2g:30-60ml:30-50ml.
As preferred embodiments of the present invention, in S2, heating for dissolving temperature is 130-135 DEG C.
The method is applicable to cupric masterbatch and comprises poly situation.
In a kind of embodiment be more preferably, described tygon is high density polyethylene.
In order to ensure the accuracy measured, the method is particularly useful for the situation of copper content 38%-42% in cupric masterbatch.
The advantage that the present invention has and good effect are: what copper provided by the invention copper content testing method in root water dropper cupric masterbatch of dispelling adopted is dissolving-precipitation separation.Lamination is there is in distilled water and naphthane and/or decahydronaphthalene because of the otherness of insoluble and density, wherein distilled water is in below, solvent up, masterbatch to be dissolved at a certain temperature in solvent but can not to be dissolved in distilled water, such tygon just stays in a solvent, the copper that density is larger drops in flask lower floor distilled water or drag with a small amount of inorganics being insoluble to solvent, the method can be correct mensuration cupric masterbatch in the content of copper, and method is succinctly easy, with low cost, can be used for production process technology and production quality control.
Embodiment
Below in conjunction with specific embodiment, the solution of the present invention is further detailed, surveys the content of copper in the cupric masterbatch of a certain batch, replicate determination 5 groups, be designated as parallel group of 1-5.
This water dropper formula is by high density polyethylene, and copper powder and a small amount of inorganics form.
Parallel group 1:
1. weigh with the cupric masterbatch that analytical balance takes certain mass, obtain quality m
0=1.112 grams;
2. the amount of trying to please is the quartzy Erlenmeyer flask one of 100ml, in flask, first add the distilled water of 30ml, in flask, add 30ml tetrahydrochysene naphtho-again pass into nitrogen protection, flask is placed in heat collecting type constant temperature blender with magnetic force, cupric masterbatch is also placed in one by constant temperature after oil bath is heated to 135 DEG C, dissolves completely after the limpid solution of formation stop heating (this process is carried out in fuming cupboard) until masterbatch;
3. allow the clear solution Temperature fall generated, the high density polyethylene cooling in solution, crystallization form precipitation, take out polyethylene precipitate thing, with distilled water cleaning polyethylene precipitate thing, and vacuum drying at 80 DEG C, weigh to obtain quality m
1=0.670 gram.
Parallel group 2:
1. weigh with the cupric masterbatch that analytical balance takes certain mass, obtain quality m
0=1.329 grams;
2. the amount of trying to please is the quartzy Erlenmeyer flask one of 100ml, in flask, first add the distilled water of 30ml, in flask, add 40ml tetrahydrochysene naphtho-again pass into nitrogen protection, flask is placed in heat collecting type constant temperature blender with magnetic force, cupric masterbatch is also placed in one by constant temperature after oil bath is heated to 135 DEG C, dissolves completely after the limpid solution of formation stop heating (this process is carried out in fuming cupboard) until masterbatch;
3. allow the clear solution Temperature fall generated, the high density polyethylene cooling in solution, crystallization form precipitation, take out polyethylene precipitate thing, with distilled water cleaning polyethylene precipitate thing, and vacuum drying at 80 DEG C, weigh to obtain quality m
1=0.787 gram.
Parallel group 3:
1. weigh with the cupric masterbatch that analytical balance takes certain mass, obtain quality m
0=1.553 grams;
2. the amount of trying to please is the quartzy Erlenmeyer flask one of 100ml, the sealing of 50ml tetrahydrochysene naphtho-is added in flask, flask is placed in heat collecting type constant temperature blender with magnetic force, cupric masterbatch is also placed in one by constant temperature after oil bath is heated to 135 DEG C, dissolves completely after the limpid solution of formation stop heating (this process is carried out in fuming cupboard) until masterbatch;
3. allow the clear solution Temperature fall generated, the high density polyethylene cooling in solution, crystallization form precipitation, take out polyethylene precipitate thing, with distilled water cleaning polyethylene precipitate thing, and vacuum drying at 80 DEG C, weigh to obtain quality m
1=0.962 gram.
Parallel group 4:
1. weigh with the cupric masterbatch that analytical balance takes certain mass, obtain quality m
0=1.710 grams;
2. the amount of trying to please is the quartzy Erlenmeyer flask one of 100ml, in flask, first add the distilled water of 30ml, in flask, add 55ml tetrahydrochysene naphtho-again pass into nitrogen protection, flask is placed in heat collecting type constant temperature blender with magnetic force, cupric masterbatch is also placed in one by constant temperature after oil bath is heated to 135 DEG C, dissolves completely after the limpid solution of formation stop heating (this process is carried out in fuming cupboard) until masterbatch;
3. allow the clear solution Temperature fall generated, the high density polyethylene cooling in solution, crystallization form precipitation, take out polyethylene precipitate thing, with distilled water cleaning polyethylene precipitate thing, and vacuum drying at 80 DEG C, weigh to obtain quality m
1=1.062 grams.
Parallel group 5:
1. weigh with the cupric masterbatch that analytical balance takes certain mass, obtain quality m
0=1.946 grams;
2. the amount of trying to please is the quartzy Erlenmeyer flask one of 100ml, in flask, first add the distilled water of 30ml, in flask, add 60ml tetrahydrochysene naphtho-again pass into nitrogen protection, flask is placed in heat collecting type constant temperature blender with magnetic force, cupric masterbatch is also placed in one by constant temperature after oil bath is heated to 135 DEG C, dissolves completely after the limpid solution of formation stop heating (this process is carried out in fuming cupboard) until masterbatch;
3. allow the clear solution Temperature fall generated, the high density polyethylene cooling in solution, crystallization form precipitation, take out polyethylene precipitate thing, with distilled water cleaning polyethylene precipitate thing, and vacuum drying at 80 DEG C, weigh to obtain quality m
1=1.187 grams.
Calculate parallel group 1 according to formula, 2,3,4, the massfraction of copper in 5 cupric masterbatch:
Measurement result sees the following form 1.As can be known from the results of Table 1, the content of copper in this method energy Accurate Determining cupric masterbatch, its mean relative deviation (RSD) is 2.38%, illustrates that this method measures precision higher.
The each parallel group of measurement result of table 1
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (6)
1. measure copper to dispel the method for copper content in root water dropper cupric masterbatch, it is characterized in that: comprise the steps:
S1: the cupric masterbatch taking certain mass with analytical balance, obtains quality m
0;
S2: get a clean flask, first add distilled water, then add naphthane and/or decahydronaphthalene, be placed in one by cupric masterbatch, under nitrogen protection state, heating for dissolving forms limpid solution;
S3: allow the clear solution Temperature fall generated, is dissolved in the material cooling in naphthane and/or decahydronaphthalene, crystallization forms precipitation, take out sediment, dry with distilled water cleaning final vacuum, obtains quality m
1;
S4: the massfraction calculating copper in cupric masterbatch according to following formula:
S5: repeat step S1-S4, replicate determination many groups, obtains mean value and be copper content in masterbatch.
2. method according to claim 1, is characterized in that: the cupric masterbatch quality added: naphthane and/or decahydronaphthalene volume: distilled water volume=1-2g:30-60ml:30-50ml.
3. method according to claim 1 and 2, is characterized in that: in S2, and heating for dissolving temperature is 130-135 DEG C.
4. method according to claim 3, is characterized in that: the method is applicable to cupric masterbatch and comprises poly situation.
5. method according to claim 4, is characterized in that: described tygon is high density polyethylene.
6. method according to claim 5, is characterized in that: the method is applicable to the situation of copper content 38%-42% in cupric masterbatch.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022001227A1 (en) * | 2020-07-03 | 2022-01-06 | 江苏亨通精工金属材料有限公司 | Test method for copper content of plastic particles from dry-type copper wire granulator |
Citations (3)
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| DE4404309A1 (en) * | 1994-02-11 | 1995-08-17 | Polster Schlageter Klaus | Investigation of precipitation of materials from, or solution in, liquids |
| CN102169074A (en) * | 2010-12-28 | 2011-08-31 | 东莞市中鼎检测技术有限公司 | Method for detecting heavy metal elements in metal coating |
| CN104089844A (en) * | 2014-07-16 | 2014-10-08 | 安徽鑫科新材料股份有限公司 | Method for measuring content of oil in scrap copper |
-
2015
- 2015-05-08 CN CN201510236980.XA patent/CN104880378B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4404309A1 (en) * | 1994-02-11 | 1995-08-17 | Polster Schlageter Klaus | Investigation of precipitation of materials from, or solution in, liquids |
| CN102169074A (en) * | 2010-12-28 | 2011-08-31 | 东莞市中鼎检测技术有限公司 | Method for detecting heavy metal elements in metal coating |
| CN104089844A (en) * | 2014-07-16 | 2014-10-08 | 安徽鑫科新材料股份有限公司 | Method for measuring content of oil in scrap copper |
Non-Patent Citations (4)
| Title |
|---|
| 张梅 等: "《分析化学》", 30 August 2014 * |
| 王正熙 等: "《高分子材料剖析方法与应用》", 31 January 2009 * |
| 陈南勋 等: "《理化分析测试指南 非金属材料部分 高聚物材料分析技术手册》", 31 December 1988 * |
| 齐贵亮 等: "《塑料成型物料配制工》", 31 January 2010 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022001227A1 (en) * | 2020-07-03 | 2022-01-06 | 江苏亨通精工金属材料有限公司 | Test method for copper content of plastic particles from dry-type copper wire granulator |
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