CN106496786A - Heavy metal standard sample and preparation method thereof in a kind of PP wood mouldings - Google Patents
Heavy metal standard sample and preparation method thereof in a kind of PP wood mouldings Download PDFInfo
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- CN106496786A CN106496786A CN201610938381.7A CN201610938381A CN106496786A CN 106496786 A CN106496786 A CN 106496786A CN 201610938381 A CN201610938381 A CN 201610938381A CN 106496786 A CN106496786 A CN 106496786A
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- heavy metal
- standard sample
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- metal standard
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to heavy metal standard sample and preparation method thereof in Wood-plastic material technical field, more particularly to a kind of PP wood mouldings.Heavy metal standard sample in a kind of PP wood mouldings, it is characterised in that comprising following components：The wood powder of 100 mesh：8% 20%；PP plastics：70%-85%；Compatilizer：3% 6%；Coupling agent：1.5%-3%；Antioxidant：0.3% 0.8%；Lubricant：2% 5%；Above each component and be 100%.As can be seen from the above technical solutions, the present invention has advantages below：PP wood mouldings heavy metal standard sample obtained in this formula is prepared with existing plastic processing equipment, sample preparation is rapidly completed, sample possesses superior uniformity and stability.And finally using air cooling method pelletizing, solve the problems, such as that common water-cooled heavy metal loss and sample moisture increase, be particularly the blank that the domestic heavy metal standard sample field filled up by the sample.
Description
Technical field
The present invention relates to heavy metal standard sample and its preparation in Wood-plastic material technical field, more particularly to a kind of PP wood mouldings
Method.
Background technology
Recently as the economic prolonged expansion developed rapidly with population, the exhausted and ring increasingly of global resources is occurred in that
It is increasingly serious that border is polluted, and the forest reserves are deficient and white pollution problems are especially prominent, force people to the life residing for oneself
Environment and product used are put forward higher requirement.The appearance of wood plastic composite exactly solves the maximally effective side of problem above
One of method, has constantly been applied to Furniture manufacturing at present, gradually replaces the market share of conventional wooden furniture.
The production and application recycled plastic of Wood plastic furniture, heavy metal are recycled easily by waste and scrap and are enriched to product
In.The auxiliary agents such as the complex lead salt stabilizer in addition adding in production process, including the dyestuff for colouring, also result in wood moulding man
In tool product, content of beary metal is higher.Heavy metal can not be biodegradable, on the contrary but can under the biological magnification of food chain,
The enrichment of thousands of Radix Achyranthis Bidentatae ground, finally enters human body.Which can occur strong interaction with protein and enzyme etc. in human body, make it
Lose activity, it is also possible in some organs of human body accumulate, cause chronic poisoning.For example, the brain cell of lead harm people, causes
Cancer mutagenesis etc.；Hydrargyrum directly sinks to liver, big cerebral nerve vision is destroyed and big；Chromium can cause numb limbs and tense tendons, psychological problem；Cadmium
Cause cardiovascular and cerebrovascular disease and renal dysfunction.
In order to strengthen China's Wood plastic furniture production quality control and foreign trade, related testing result accurate
Property require increasingly improve.Setting up has the preparation of card wood moulding base material class standard sample, rational evaluate definite value system, and using having
Card wood moulding base material class standard material carries out the Quality Control supervision of routine testing, is reasonably avoiding test in laboratory risk, with positive
Directive function.Standard sample system of the gradual perfection China to heavy metal composition in Wood plastic furniture detection field.Disclosure satisfy that state
The stereotyped command such as interior and American-European is required to the detection of heavy metal in Wood plastic furniture, to ensureing health and preserving the ecological environment,
Significant.
Domestic HJ 2540-2015《Environmental labelling product technical requirements wood plastic product》To solvable in wood moulding base material and coating
Go out heavy metal and make restriction, GB/T 24137-2009《Wood-plastic decorative board》With GB/T 24508-2009《Wood-plastic floor》Only to applying
The leachable heavy metal of layer is defined.All total metalses in product are not carried out with limitation requirement, and furniture wood moulding material both at home and abroad
In material heavy metal analysis using standard sample have not been reported.We are studied to heavy metal in Wood plastic furniture, and are ground
Make the standard sample that quick detection uses very necessary.
Content of the invention
In order to solve above-mentioned technical problem, an object of the present invention is to provide a kind of uniformity and stability is more preferable
Heavy metal standard sample in PP wood mouldings, the second object of the present invention are to provide a kind of preparation of heavy metal standard sample in PP wood mouldings
Method.
In order to realize foregoing invention purpose, following technical scheme is present invention employs：
Heavy metal standard sample in a kind of PP wood mouldings, it is characterised in that comprising following components：The wood powder of 100 mesh：8%-
20%；PP plastics：70%-85%；Compatilizer：3%-6%；Coupling agent：1.5%-3%；Antioxidant：0.3%-0.8%；Profit
Lubrication prescription：2%-5%；Above each component and be 100%.
Preferably：The wood powder of 100 mesh：8%-20%；AP03B type PP plastics：70-85%；Compatilizer：3%-
6%；Antioxidant：0.3%-0.8%；Lubricant：2%-5%；Coupling agent：1.5%-3%；Lead stearate：On a small quantity；Stearic acid
Cadmium：On a small quantity；Sodium chromate：On a small quantity；Cinnabar：On a small quantity；Above each component and be 100%.
Preferably：The chemical combination material that four kinds of elements are introduced is lead stearate, stearic acid cadmium, sodium chromate, sulfur
Change hydrargyrum, it is 10-5000mg/kg to prepare heavy metal standard sample lead, cadmium, hydrargyrum, the concentration range of chromium.
Preferably：The compatilizer be maleic anhydride graft PP, maleic anhydride grafting PE one or two mix
Close.
Preferably：The coupling agent be aluminate coupling agent, titanate coupling agent, one kind of silane coupler or
Multiple mixing.
Preferably：The antioxidant is antioxidant 1010, the mixing of irgasfos 168.
Preferably：The lubricant is Tissuemat E, stearic acid, zinc stearate, one kind of calcium stearate or many
The mixing that plants.
The preparation method of heavy metal standard sample in a kind of PP wood mouldings, it is characterised in that comprise the following steps：
A. wood powder, PP plastics, coupling agent are mixed and are heated to 60 DEG C for 800 revs/min in high-speed mixer, plus
Enter compatilizer, antioxidant, lubricant and the lead stearate for measuring, cadmium stearate, sodium chromate, cinnabar, mix and add
To 80 DEG C, continuous heating stirs 1 hour to heat；
B. mixed material is carried out melting extrusion pelletize with double-screw extruding pelletizing machine, using air-cooled stripping, enters pelletizing
Machine pelletizing, carries out four times and extrudes repeatedly micelles, and prilling temperature control is between 170 DEG C -220 DEG C；
C. final extrusion micelle is cooled to room temperature, heavy metal standard sample in PP wood mouldings is obtained, granule is cylindric.
As can be seen from the above technical solutions, the present invention has advantages below：This is prepared with existing plastic processing equipment
PP wood mouldings heavy metal standard sample obtained in formula, is rapidly completed sample preparation, and sample possesses superior uniformity and stability.
And finally using air cooling method pelletizing, solve the problems, such as that common water-cooled heavy metal loss and sample moisture increase, particularly
The blank in the domestic heavy metal standard sample field filled up by the sample.
Description of the drawings
Fig. 1 is lead element test spectrogram in standard sample of the invention.
Fig. 2 is cadmium element test spectrogram in standard sample of the invention.
Fig. 3 is chromium test spectrogram in standard sample of the invention.
Fig. 4 is mercury element test spectrogram in standard sample of the invention.
Specific embodiment
Embodiment 1：
In the present invention, PP plastics add as resin matrix in the PP wood mouldings that appropriate wood powder, heavy metal target substance make
Heavy metal standard sample, with gross weight as 3kg, design lead, cadmium, hydrargyrum, the concentration of chromium are respectively：300mg/kg、150mg/
As a example by the formula of kg, 300mg/kg, 300mg/kg (concentration range is 10-5000mg/kg), heavy metal mark in PP wood mouldings
Quasi- sample includes：
The wood powder of 100 mesh：300g；AP03B type PP plastics：2400g；Compatilizer：120g；Coupling agent：63g；Antioxidant：
18g；Lubricant：90g；Lead stearate：3.1g；Stearic acid cadmium：2.6g；Sodium chromate：2.6g；Cinnabar：0.96g.
Using PP wood mouldings heavy metal standard sample obtained in this formula, possess and superior possess superior uniformity and stable
Property, base material coupling in detection technique is solved the problems, such as, the blank of heavy metal standard sample in China's wood moulding can be filled up.
In the present invention, compatilizer is maleic anhydride graft PP, one or more mixing of maleic anhydride grafting PE.
In the present invention, coupling agent is aluminate coupling agent, titanate coupling agent, mixes for one or more of silane coupler
Close.
The optimization of compatilizer and coupling agent is used, and is improved the compatibility of wood powder and PP plastics, is made both in extrusion molding
Smoothly combine in journey, and effectively improve the uniformity that each object element of knowing clearly spreads in the substrate.
In the present invention, antioxidant improves the antioxygenic property of material, meets the stability of standard sample.Antioxidant is
Antioxidant 1010, the mixing of irgasfos 168.
In the present invention, lubricant reduces the frictional force between material and plant equipment, so as to reduce the abrasion of equipment,
Improve the processing flowability of material, improve the dispersibility of each target substance.Lubricant is Tissuemat E, maleic anhydride grafting
Tissuemat E, one or more of chlorinated polyethylene with stearic acid, zinc stearate, one or more of calcium stearate of mixing.
The present invention also provides a kind of preparation method of PP wood mouldings heavy metal standard sample, and the preparation method includes following step
Suddenly：
Wood powder, PP plastics, coupling agent are mixed and be heated to 60 DEG C for 800 revs/min in high-speed mixer, is added
Compatilizer, antioxidant, lubricant and the lead stearate for measuring, cadmium stearate, sodium chromate, cinnabar, mix and heat
To 80 DEG C, continuous heating stirs 1 hour；
Mixed material is carried out melting extrusion pelletize with double-screw extruding pelletizing machine, using air-cooled stripping, pelleter is entered
Pelletizing, carries out four times and extrudes repeatedly micelles, and prilling temperature control is between 170 DEG C -220 DEG C；
Final extrusion micelle is cooled to room temperature, heavy metal standard sample in PP wood mouldings is obtained, granule is cylindric.
Heavy metal standard sample in wood moulding produced above is tested：
1. sample is prepared
2. instrument and equipment：710 Inductively coupled plasma optical emission spectrometers of ICP-OES, CEM microwave dissolvers
3. reagent and standard solution：
Nitric acid：Top pure grade, hydrogen peroxide：Top pure grade, pure water
Lead single element standard solution：1000 μ g/mL of China National Measuring Science Research Inst., GBW08619
Chromium single element standard solution：1000 μ g/mL of China National Measuring Science Research Inst., GBW08614
Cadmium single element standard solution：1000 μ g/mL of China National Measuring Science Research Inst., GBW08612
Hydrargyrum single element standard solution：1000 μ g/mL of China National Measuring Science Research Inst., GBW08617
Above single element standard solution is configured to 5 points of hybrid working curve standards with 5% salpeter solution stepwise dilution molten
Liquid,
It is lead chromium cadmium respectively：0.5,1,2,5,10；Hydrargyrum 0.05,0.1,0.5,1,2
Sample (0.1～0.2) g is weighed, 0.1mg is accurate to, is placed in micro-wave diminishing pot, add 8mL nitric acid and 2mL
30% hydrogen peroxide.
Politef lid is covered, overcoat is tightened, is placed in and is cleared up in instrument chamber, program is cleared up in operation, treat that pressurized tank is cooled down
To room temperature,
Digestion solution is transferred in 50mL volumetric flasks, politef inwall is washed with water and lid (3～4) is secondary, will washing
Liquid is incorporated in volumetric flask, is diluted with water to scale.
If solution is not limpid or has precipitation to produce, filters, retain filtrate to be measured.Reagent blank experiment is done simultaneously.
Operation instrument being guided according to ICP-OES operations, examination with computer being carried out after instrument stabilizer, first test curve standard is molten
Liquid, rear test sample solution.
When the quality of sample, digestion solution volume and the coefficient of dilution before input resolution, instrument is calculated automatically clears up front sample
Content of beary metal.
Sample test uniformity data is as follows
Lead element test data (unit：mg/kg)
Cadmium element test data (unit：mg/kg)
Chromium test data (unit：mg/kg)
Mercury element test data (unit：mg/kg)
It should be pointed out that above example is only the representative example of the present invention.The present invention can also have many deformations.Every
According to any simple modification, equivalent variations and modification that the essence of the present invention makees above example, it is considered as belonging to this
The protection domain of invention.
Claims (8)
1. heavy metal standard sample in a kind of PP wood mouldings, it is characterised in that comprising following components：The wood powder of 100 mesh：8%-
20%；PP plastics：70%-85%；Compatilizer：3%-6%；Coupling agent：1.5%-3%；Antioxidant：0.3%-0.8%；Profit
Lubrication prescription：2%-5%；Above each component and be 100%.
2. heavy metal standard sample in a kind of PP wood mouldings according to claim 1, it is characterised in that：The wood powder of 100 mesh：
8%-20%；AP03B type PP plastics：70-85%；Compatilizer：3%-6%；Antioxidant：0.3%-0.8%；Lubricant：2%-
5%；Coupling agent：1.5%-3%；Lead stearate：On a small quantity；Stearic acid cadmium：On a small quantity；Sodium chromate：On a small quantity；Cinnabar：On a small quantity；With
Upper each component and be 100%.
3. heavy metal standard sample in a kind of PP wood mouldings according to claim 2, it is characterised in that：Four kinds of elements draw
The chemical combination material for entering is lead stearate, stearic acid cadmium, sodium chromate, cinnabar, prepares heavy metal standard sample lead, cadmium, hydrargyrum, chromium
The concentration range of element is 10-5000mg/kg.
4. heavy metal standard sample in a kind of PP wood mouldings according to claim 1, it is characterised in that：The compatilizer is horse
Maleic anhydride grafted PP, one or two mixing of maleic anhydride grafting PE.
5. heavy metal standard sample in a kind of PP wood mouldings according to claim 1, it is characterised in that：The coupling agent is aluminum
Acid esters coupling agent, titanate coupling agent, one or more mixing of silane coupler.
6. heavy metal standard sample in a kind of PP wood mouldings according to claim 1, it is characterised in that：The antioxidant is anti-
The mixing of oxygen agent 1010, irgasfos 168.
7. heavy metal standard sample in a kind of PP wood mouldings according to claim 1, it is characterised in that：The lubricant is poly-
Ethylene waxes, stearic acid, zinc stearate, one or more of calcium stearate of mixing.
8. in a kind of PP wood mouldings heavy metal standard sample preparation method, it is characterised in that comprise the following steps：
A. wood powder, PP plastics, coupling agent are mixed and is heated to 60 DEG C for 800 revs/min in high-speed mixer, add phase
Hold agent, antioxidant, lubricant and the lead stearate for measuring, cadmium stearate, sodium chromate, cinnabar, mix and be heated to
80 DEG C, continuous heating stirs 1 hour；
B. mixed material is carried out melting extrusion pelletize with double-screw extruding pelletizing machine, using air-cooled stripping, enters pelleter and cut
Grain, carries out four times and extrudes repeatedly micelles, and prilling temperature control is between 170 DEG C -220 DEG C；
C. final extrusion micelle is cooled to room temperature, heavy metal standard sample in PP wood mouldings is obtained, granule is cylindric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610938381.7A CN106496786A (en) | 2016-10-25 | 2016-10-25 | Heavy metal standard sample and preparation method thereof in a kind of PP wood mouldings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610938381.7A CN106496786A (en) | 2016-10-25 | 2016-10-25 | Heavy metal standard sample and preparation method thereof in a kind of PP wood mouldings |
Publications (1)
| Publication Number | Publication Date |
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| CN106496786A true CN106496786A (en) | 2017-03-15 |
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|---|---|---|---|
| CN201610938381.7A Pending CN106496786A (en) | 2016-10-25 | 2016-10-25 | Heavy metal standard sample and preparation method thereof in a kind of PP wood mouldings |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396702A (en) * | 2013-08-16 | 2013-11-20 | 广东出入境检验检疫局检验检疫技术中心 | Preparation method of heavy metal-containing crayon standard sample for laboratory capability verification |
| CN104062255A (en) * | 2014-06-04 | 2014-09-24 | 北京农业智能装备技术研究中心 | Method and device for detecting heavy metal content in soil based on sample box method |
| CN104479388A (en) * | 2014-12-31 | 2015-04-01 | 广东华慧生环保科技有限公司 | PP wood-plastic composite and preparation method thereof |
-
2016
- 2016-10-25 CN CN201610938381.7A patent/CN106496786A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396702A (en) * | 2013-08-16 | 2013-11-20 | 广东出入境检验检疫局检验检疫技术中心 | Preparation method of heavy metal-containing crayon standard sample for laboratory capability verification |
| CN104062255A (en) * | 2014-06-04 | 2014-09-24 | 北京农业智能装备技术研究中心 | Method and device for detecting heavy metal content in soil based on sample box method |
| CN104479388A (en) * | 2014-12-31 | 2015-04-01 | 广东华慧生环保科技有限公司 | PP wood-plastic composite and preparation method thereof |
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Application publication date: 20170315 |