CN102391548B - Biodegradable starch-based molybdate gas-phase rust-preventing masterbatch - Google Patents
Biodegradable starch-based molybdate gas-phase rust-preventing masterbatch Download PDFInfo
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- CN102391548B CN102391548B CN 201110262905 CN201110262905A CN102391548B CN 102391548 B CN102391548 B CN 102391548B CN 201110262905 CN201110262905 CN 201110262905 CN 201110262905 A CN201110262905 A CN 201110262905A CN 102391548 B CN102391548 B CN 102391548B
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Abstract
The invention discloses a biodegradable starch-based molybdate gas-phase rust-preventing masterbatch, mainly comprising the following components: molybdate, benzoate, triazole and modified starch. After being granulated and processed by a double-screw granulating machine, the masterbatch can form a degradable gas-phase rust-preventing film and a degradable gas-phase rust-preventing foam pad, so that steel can be prevented from being rusted, and simultaneously no pollution is caused to the environment. The biodegradable starch-based molybdate gas-phase rust-preventing masterbatch can be widely used for long rust prevention of metal materials of weapon equipment and civil steel.
Description
Affiliated technical field
The present invention relates to composition of a kind of biodegradable starch base volatile rust prevention plastic prod master batch and preparation method thereof, belong to the metal rust preventing technical field.
Background technology
The aggravation of the problems such as, resource increasing along with population in the world is increasingly deficient, construct economize on resources, environment harmonious society become developing direction.On June 1st, 2008; the General Office of the State Council issues " selling the notice of using plastic shopping bag about limit production "; become that China is sustainable, a bright spot of recycling economy, this also means, the contradiction between plastic prod and environment protection will cause more and more that people pay close attention to.
In China, plastics year consumption reach more than 4,000 ten thousand tons, wherein the packaging plastics are nearly 1,000 ten thousand tons.In the equipment such as automobile, iron and steel, machinery, electronics and production line are imported and exported transportation, storage process, need especially the volatile rust prevention plastic prods such as gas phase anti-tarnishing film, volatile rust prevention bubble cushion paving is applied in freight container or directly is wrapped in packaged object, thereby stop oxygen and moisture and metal generation chemical reaction to produce corrosion.Generally only have 1 the work-ing life of this class plastic prod to some months, after goods reaches the destination, become very soon rubbish.These volatile rust prevention plastic prods take oil as basic raw material, add the vapour-phase inhibitor that has volatility and certain vapour pressure as mothball, and the applied chemistry synthetic method is produced.Because the volatile of vapour-phase inhibitor, there is document to claim that volatile rust preventive material is ep-type material, but the inhibiter that comprises of material itself can not volatilize fully in fact, and its plastic carrier buries at least 200 years ability at occurring in nature and naturally rots, namely consume the energy and polluted again environment, therefore, just need to produce the degradable product to shorter volatile rust prevention plastic prod of this usage period.Extensive to the research and comparison of bio-degradable plastics both at home and abroad at present, but the research of biodegradable functional plastic also is in blank.
Bio-degradable plastics refers to be decomposed by microorganisms such as the bacterium in soil, sewage, seawater, moulds, finally generates class plastics of the material of environmentally safe.Its DeR process is: at first microorganism is resolved into high-molecular weight polymer the fragment of molecular weight, then further by natural bacterial degradation, digestion, absorption, generates at last the materials such as carbonic acid gas and water.Vapour-phase inhibitor is added in degradable plastics, made by blend or copolymerization process by natural polymer raw material and universal synthetic resins (polyvinyl alcohol, vinylformic acid etc.).Consider the factors such as production cost, operational path environmental-protecting performance, mechanical property; select starch base as the natural polymer raw material; because poly-hydroxy hydrophilic-structure and the polyolefine of starch are incompatible; therefore by micronizing, interpolation solubilizing agent, softening agent, it is carried out modification; modified starch base is mixed with polyolefine, Sodium orthomolybdate gas-like phase anti-rust master batch; enter blend granulation in dual-screw pelletizer, obtain biodegradable gas-phase anti-rust master batch.Can blow various degradable gas phase anti-tarnishing film section products with this master batch.
Summary of the invention
The objective of the invention is to study a kind of biodegradable starch-based molybdate gas-phase rust-preventing.
This master batch mainly is comprised of molybdate, benzoate, 124 Triazole and treated starch etc., can be made into degradable gas phase anti-tarnishing film, degradable volatile rust prevention bubble pad, degradable volatile rust prevention mould of plastics etc. through processing, and each percentage composition content is:
Wherein the making method of treated starch is: get 30 parts of cornstarch, dry 24h under 100 ℃, with WZJ-6J type vibration type ultramicro disintegrator micronizing 60min, sample is crossed 300 mesh sieves, add while stirring coupling agent trieline base silane and linking agent Trisodium trimetaphosphate, the consumption of trieline base silane and Trisodium trimetaphosphate is 2%～3% of W-Gum quality, after reaction 30min, and termination reaction.
Each component total amount is 100%.
Embodiment 1: get 30 parts of cornstarch, dry 24h under 100 ℃, with WZJ-6J type vibration type ultramicro disintegrator micronizing 60min, sample is crossed 300 mesh sieves, add while stirring coupling agent trieline base silane 2%～3%, linking agent Trisodium trimetaphosphate 2%～3%, after reaction 30min, termination reaction.With 30 parts of treated starch and molybdates, 20 parts of benzoates, 2 parts of reactions of 124 Triazole add 8 parts, softening agent after stirring 15min under 80 ℃, and 8 parts of tougheners stir after 30min to cooling, and mixture is entered granulation in dual-screw pelletizer, obtain the milk yellow master batch.
Embodiment 2: get the master batch 80% in embodiment 1, talcum powder 10% is blow molded into degradable starch base molybdate series gas-phase antirusting film take polyethylene as carrier, directly uses.
Embodiment 3: get the master batch 80% in embodiment 1, talcum powder 10% is blow molded into degradable starch base molybdate series volatile rust prevention bubble pad take polyethylene as carrier, directly use.
The rustless property of above-described embodiment is verified by following test.
1, static powder accelerated test
This test is used for the volatile rust prevention effect of checking embodiment.This testing apparatus is seen accompanying drawing 1.
The test explanation: degradable volatile rust prevention plastic prod master batch 2 grams, degradable gas-phase antirusting film, bubble pad consumption are 200cm
2, aqueous solution 200ml contains respectively HCO
3 -, SO
4 2-, Cl
-1000mg/L, 2500mg/L, 1500mg/L, (50mm * 25mm * 2mm) processes by standard method and is placed in device, and bath temperature is set to 40 ℃, and be 7 days experimental period with metal testing plate.
With the comparative example of embodiment contrast be: do not adopt the volatile rust prevention product.
Test-results is as follows:
| Metal testing plate | The A3 steel | 45 steel | 20 steel | Tool steel |
| Embodiment 1 | Light is rustless | Light is rustless | Light is rustless | Light is rustless |
| Embodiment 2 | Light is rustless | Light is rustless | Light is rustless | Light is rustless |
| |
Light is rustless | Light is rustless | Light is rustless | Light is rustless |
| Comparative example | Serious corrosion | Serious corrosion | Serious corrosion | Serious corrosion |
2, mechanicl test
This test is used for the mechanical property of checking embodiment.Tensile strength, elongation at break with XL-100A tension testing machine and the desk-top thickness indicator working sample of CH-1 type.
| The sample title | Thickness of sample/mm | Tensile strength/Mpa | Elongation at break/% |
| The degradable gas phase anti-tarnishing film | 0.8 | 63 | 221 |
| Degradable volatile rust prevention bubble pad | 0.8 | 72 | 235 |
3, biodegradation test
Adopt soil to bury method, will be embedded in after sample drying in slowly drained soil, during test, temperature remains on 25～30 ℃, regularly sample is taken out from soil, observes the degraded situation, calculation sample rate of weight loss, the mechanical property of check sample.After soil buried 90 days, coarse, hole phenomenon appearred in its sample surfaces.The proper mass of gas phase anti-tarnishing film and volatile rust prevention bubble pad is respectively 20.51g and 20.63g.
| Soil buries time/d | Quality after degraded/(film/pad) g | Tensile strength/(film/pad) Mpa |
| 10 | 19.86/19.99 | 60/72 |
| 20 | 19.45/19.53 | 58/68 |
| 30 | 19.25/19.16 | 52/49 |
| 45 | 16.37/15.29 | 35/28 |
| 60 | 12.54/10.99 | 21/17 |
| 90 | 9.26/8.78 | 3/0 |
[0026]Comprehensive above-mentioned test, the major advantage of this product is:
1. a kind of biodegradable starch base volatile rust prevention plastic prod master batch processing flexibly, can be through being processed to form the products such as biodegradable gas-phase antirusting film, biodegradable volatile rust prevention plastic blister pad, biodegradable volatile rust prevention mould.
2. this product is Green Product.Its composition is mainly molybdate, benzoate, 124 Triazole and treated starch, belongs to environmental friendly product.
Description of drawings
Fig. 1: static powder acceleration test apparatus figure.The 1-water bath with thermostatic control; The 2-aqueous solution; The 3-800ml beaker; 4-volatile rust prevention product; The 5-seal interface; The 6-metal testing plate.
Claims (1)
1. biodegradable starch-based molybdate gas-phase rust-preventing, its each composition quality per-cent is:
Wherein the making method of treated starch is: get 30 parts of cornstarch, dry 24h under 100 ℃, with WZJ-6J type vibration type ultramicro disintegrator micronizing 60min, sample is crossed 300 mesh sieves, add while stirring coupling agent trieline base silane and linking agent Trisodium trimetaphosphate, the consumption of trieline base silane and Trisodium trimetaphosphate is 2%～3% of W-Gum quality, after reaction 30min, and termination reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110262905 CN102391548B (en) | 2011-09-07 | 2011-09-07 | Biodegradable starch-based molybdate gas-phase rust-preventing masterbatch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110262905 CN102391548B (en) | 2011-09-07 | 2011-09-07 | Biodegradable starch-based molybdate gas-phase rust-preventing masterbatch |
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| Publication Number | Publication Date |
|---|---|
| CN102391548A CN102391548A (en) | 2012-03-28 |
| CN102391548B true CN102391548B (en) | 2013-06-19 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102702610B (en) * | 2012-05-22 | 2015-10-14 | 青岛鑫盈鑫包装材料有限公司 | One is not containing nitrous acid salt form anti-rust master batch manufacture method |
| CN104761786B (en) * | 2014-12-26 | 2016-08-10 | 青岛科技大学 | A kind of phytic acid type gas-phase anti-rust master batch and its preparation method and application |
| CN113930004B (en) * | 2021-12-17 | 2022-03-04 | 河北环宸科技有限公司 | Transparency modifier for gas-phase anti-rust film |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1288215B (en) * | 1960-07-25 | 1969-01-30 | Yawata Iron & Steel Co | Process for the production of anti-corrosion coatings |
| CN101643127A (en) * | 2009-06-20 | 2010-02-10 | 金福东 | Biodegradable gasified rust-proof bubble film and manufacturing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5247535A (en) * | 1975-10-15 | 1977-04-15 | Nippon Steel Corp | Process for forming rusttproofing underlayer on metallic articles |
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2011
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1288215B (en) * | 1960-07-25 | 1969-01-30 | Yawata Iron & Steel Co | Process for the production of anti-corrosion coatings |
| CN101643127A (en) * | 2009-06-20 | 2010-02-10 | 金福东 | Biodegradable gasified rust-proof bubble film and manufacturing method thereof |
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