CN105295230A - Anti-corrosion rice transplanter plastic shell material and preparation method thereof - Google Patents

Abstract

The invention discloses an anti-corrosion rice transplanter plastic shell material which is prepared from, by weight, 27-30 parts of coarse whiting, 2-4 parts of monopotassium phosphate, 3-4 parts of carbon nano tubes, 40-50 parts of thionyl chloride, 3-5 parts of N,N-dimethyl formamide, 100-120 parts of quadrol, 16-20 parts of melamine, 2.6-3 parts of locust bean gum, 36-40 parts of 35-37% formalin, 170-200 parts of polyvinyl chloride, 20-30 parts of 75-80 wt% of sulfuric acid, 30-40 parts of 95-98 wt% of nitric acid, 0.8-1 part of methyl heptenone 1-2,2-methyl-4-Isothiazolin-3-ketone, 2-3 parts of 2-octyl-2H-isothiazol-3-one, 1-2 parts of sodium diacetate, 7-10 parts of salatrim and 0.1-0.2 part of sp80. A group on the modified carbon nano tube surface and amidogen in melamine resin can form a hydrogen bond or other active interactions, so that the heat-resisting stability of a composite material is improved, and the finished product structural stability strength can be improved.

Description

A kind of anticorrosion rice transplanter plastic housing material and preparation method thereof

Technical field

The present invention relates to rice transplanter technical field, particularly relate to a kind of anticorrosion rice transplanter plastic housing material and preparation method thereof.

Background technology

Carbon nanotube has excellent mechanical property and self lubricity, as packing material, be scattered in PVC base system if can all hook, and form good interface compatibility between energy and PVC base system, then effectively can improve mechanical property and the frictional behaviour of PVC base system.But, due to the surface energy of carbon nanotube and specific surface area large, cause carbon nanotube easily to be reunited; Meanwhile, carbon nano tube surface presents very strong nonpolar, makes it be insoluble to any solvent and polymkeric substance.Therefore, in order to improve the dispersiveness of carbon nanotube in polymeric matrix, strengthening the interface compatibility between carbon nanotube and polymeric matrix, needing to introduce functional group in carbon nano tube surface, improving carbon nano tube surface active.

At present, the research about functionalization is a lot, mainly concentrates on the impact of carbon nanotube for polymer architecture and macro property.Much research is also own verified, the functionalization of carbon nanotube, effectively can introduce organo-functional group in carbon nano tube surface, reduce the surface energy of carbon nanotube, improve the agglomeration of carbon nanotube, improve the dispersiveness of carbon nanotube in polymeric matrix, strengthen interfacial adhesion between the two.

Summary of the invention

The object of the invention is exactly the defect in order to make up prior art, provides a kind of anticorrosion rice transplanter plastic housing material and preparation method thereof.

The present invention is achieved by the following technical solutions:

A kind of anticorrosion rice transplanter plastic housing material, it is made up of the raw material of following weight parts:

The formalin 36-40 of water-ground limestone 27-30, potassium primary phosphate 2-4, carbon nanotube 3-4, sulfur oxychloride 40-50, DMF 3-5, quadrol 100-120, trimeric cyanamide 16-20, Viscogum BE 2.6-3,35-37%, the nitric acid 30-40 of sulfuric acid 20-30,95-98wt% of polyvinyl chloride 170-200,75-80wt%, Sulcatone 1-2, MIT 0.8-1, octylisothiazolinone 2-3, sodium Diacetate 1-2, short and long-chain acyl triglyceride molecules 7-10, sp800.1-0.2.

A preparation method for described anticorrosion rice transplanter plastic housing material, comprises the following steps:

(1) nitric acid of the sulfuric acid of above-mentioned 75-80wt%, 95-98wt% is mixed, stir, add carbon nanotube, sonic oscillation 2-3 hour in the water bath with thermostatic control of 50-60 DEG C, add system weight 8-10 deionized water dilution doubly, insulation leaves standstill, after solution layering, discard supernatant liquid, by lower floor's solution suction filtration, obtain filter cake;

(2) by above-mentioned octylisothiazolinone, Sulcatone mixing, stir, join in compound weight 4-6 dehydrated alcohol doubly, insulated and stirred 5-7 minute at 40-50 DEG C, add the 20-30% of above-mentioned short and long-chain acyl triglyceride molecules weight, be stirred to normal temperature, obtain anticorrosion alcohol liquid;

(3) above-mentioned sodium Diacetate is joined in 6-10 times of water, add sp80, stir, mix with above-mentioned anticorrosion alcohol liquid, MIT, 70-100 rev/min is stirred 4-6 minute, adds the 10-12% of above-mentioned polyvinyl chloride weight, be sent in the oil bath of 140-146 DEG C, insulated and stirred 17-20 minute, discharging cools, mix with above-mentioned filter cake, stir, underpressure distillation removing ethanol, dehydration, vacuum-drying 10-13 hour at 80-90 DEG C, obtains anticorrosion acidifying carbon nanotube;

(4) above-mentioned sulfur oxychloride is mixed with DMF, stir, add above-mentioned anticorrosion acidifying carbon nanotube, insulated and stirred 20-24 hour in the water-bath of 70-75 DEG C, washs reaction product anhydrous tetrahydro furan, suction filtration, vacuum-drying, obtains chloride carbon nanotube;

(5) mixed with quadrol by above-mentioned chloride carbon nanotube, insulated and stirred 46-50 hour in the oil bath of 100-105 DEG C, washs reaction product methylene dichloride and dehydrated alcohol, suction filtration, vacuum-drying successively, obtains amination carbon nanotube;

(6) by the formalin of trimeric cyanamide, 35-37%, the mixing of amination carbon nanotube, insulated and stirred 10-20 minute at 70-75 DEG C, adjustment PH is 8-9, insulation reaction 2-3 hour, be placed in the vacuum drying oven of 30-35 DEG C, regulate PH to be 5-6 with citric acid after dewatering, in the baking oven of 50-60 DEG C, solidify 7-8 hour, obtain carbon nano-tube modification melmac;

(7) mixed with each raw material of residue by above-mentioned carbon nano-tube modification melmac, stir, send into twin screw extruder and melt extrude, the product extruded, through circulator bath cooling and pelletizing, to obtain final product.

Advantage of the present invention is:

First the present invention adopts nitration mixture process carbon nanotube, introduces oxy radical, the Hyarogen-bonding between carbon nanotube can be made to strengthen, and reduces the winding state of carbon nanotube, improves its dispersiveness; Then through amination treatment, the surface energy of carbon nanotube can be reduced, eliminate its surface charge, improve the dispersive ability of carbon nanotube, increase the interface binding power of itself and matrix; And by modified carbon nanotube and trimeric cyanamide, formalin copolymerization melmac, the group of modified carbon nano tube surface can form hydrogen bond and other polar interaction with the amino in melmac, thus improve the heat-resistant stability of matrix material, play promoter action for improving finished product structure stability_intensity;

Present invention adds 2 methylisothiazolinones, octylisothiazolinone, sodium Diacetate etc., effectively raise the preservative property of finished plastic shell, improve over-all properties.

Embodiment

A kind of anticorrosion rice transplanter plastic housing material, it is made up of the raw material of following weight parts:

The formalin 36 of water-ground limestone 27, potassium primary phosphate 2, carbon nanotube 3, sulfur oxychloride 40, DMF 3, quadrol 100, trimeric cyanamide 16, Viscogum BE 2.6,35%, polyvinyl chloride 170, the sulfuric acid 20 of 75wt%, the nitric acid 30 of 95wt%, Sulcatone 1,2 methylisothiazolinone 0.8, octylisothiazolinone 2, sodium Diacetate 1, short and long-chain acyl triglyceride molecules 7, sp800.1.

A preparation method for described anticorrosion rice transplanter plastic housing material, comprises the following steps:

(1) nitric acid of the sulfuric acid of above-mentioned 75wt%, 95wt% is mixed, stir, add carbon nanotube, sonic oscillation 2 hours in the water bath with thermostatic control of 50 DEG C, add the deionized water dilution of system weight 8 times, insulation leaves standstill, after solution layering, discard supernatant liquid, by lower floor's solution suction filtration, obtain filter cake;

(2) by above-mentioned octylisothiazolinone, Sulcatone mixing, stir, join in the dehydrated alcohol of compound weight 4 times, insulated and stirred 5 minutes at 40 DEG C, adds 20% of above-mentioned short and long-chain acyl triglyceride molecules weight, is stirred to normal temperature, obtains anticorrosion alcohol liquid;

(3) above-mentioned sodium Diacetate is joined in 6 times of water, add sp80, stir, mix with above-mentioned anticorrosion alcohol liquid, 2 methylisothiazolinones, 70 revs/min are stirred 4 minutes, add 10% of above-mentioned polyvinyl chloride weight, be sent in the oil bath of 140 DEG C, insulated and stirred 17 minutes, discharging cools, mix with above-mentioned filter cake, stir, underpressure distillation removing ethanol, dehydration, vacuum-drying 10 hours at 80 DEG C, obtains anticorrosion acidifying carbon nanotube;

(4) above-mentioned sulfur oxychloride is mixed with DMF, stir, add above-mentioned anticorrosion acidifying carbon nanotube, in the water-bath of 70 DEG C, insulated and stirred 20 hours, washs reaction product anhydrous tetrahydro furan, suction filtration, vacuum-drying, obtains chloride carbon nanotube;

(5) mixed with quadrol by above-mentioned chloride carbon nanotube, in the oil bath of 100 DEG C, insulated and stirred 46 hours, washs reaction product methylene dichloride and dehydrated alcohol successively, suction filtration, vacuum-drying, obtains amination carbon nanotube;

(6) by trimeric cyanamide, 35% formalin, amination carbon nanotube mixing, insulated and stirred 10 minutes at 70 DEG C, PH is regulated to be 8, insulation reaction 2 hours, be placed in the vacuum drying oven of 30 DEG C, regulate PH to be 5 with citric acid after dewatering, solidify 7 hours in the baking oven of 50 DEG C, obtain carbon nano-tube modification melmac;

(7) mixed with each raw material of residue by above-mentioned carbon nano-tube modification melmac, stir, send into twin screw extruder and melt extrude, the product extruded, through circulator bath cooling and pelletizing, to obtain final product.

Performance test:

Tensile strength: 21.9MPa;

Low temperature brittleness impact temperature (DEG C) :-30 DEG C are passed through;

Fire-retardant rank: V-0;

After 100 DEG C × 240h hot air aging: tensile strength velocity of variation (%)-8.1;

Extension at break velocity of variation (%)-7.5.

Claims (2)

1. an anticorrosion rice transplanter plastic housing material, is characterized in that, it is made up of the raw material of following weight parts:

The formalin 36-40 of water-ground limestone 27-30, potassium primary phosphate 2-4, carbon nanotube 3-4, sulfur oxychloride 40-50, DMF 3-5, quadrol 100-120, trimeric cyanamide 16-20, Viscogum BE 2.6-3,35-37%, the nitric acid 30-40 of sulfuric acid 20-30,95-98wt% of polyvinyl chloride 170-200,75-80wt%, Sulcatone 1-2, MIT 0.8-1, octylisothiazolinone 2-3, sodium Diacetate 1-2, short and long-chain acyl triglyceride molecules 7-10, sp800.1-0.2.

2. a preparation method for anticorrosion rice transplanter plastic housing material as claimed in claim 1, is characterized in that comprising the following steps:

(1) nitric acid of the sulfuric acid of above-mentioned 75-80wt%, 95-98wt% is mixed, stir, add carbon nanotube, sonic oscillation 2-3 hour in the water bath with thermostatic control of 50-60 DEG C, add system weight 8-10 deionized water dilution doubly, insulation leaves standstill, after solution layering, discard supernatant liquid, by lower floor's solution suction filtration, obtain filter cake;

(2) by above-mentioned octylisothiazolinone, Sulcatone mixing, stir, join in compound weight 4-6 dehydrated alcohol doubly, insulated and stirred 5-7 minute at 40-50 DEG C, add the 20-30% of above-mentioned short and long-chain acyl triglyceride molecules weight, be stirred to normal temperature, obtain anticorrosion alcohol liquid;

(3) above-mentioned sodium Diacetate is joined in 6-10 times of water, add sp80, stir, mix with above-mentioned anticorrosion alcohol liquid, MIT, 70-100 rev/min is stirred 4-6 minute, adds the 10-12% of above-mentioned polyvinyl chloride weight, be sent in the oil bath of 140-146 DEG C, insulated and stirred 17-20 minute, discharging cools, mix with above-mentioned filter cake, stir, underpressure distillation removing ethanol, dehydration, vacuum-drying 10-13 hour at 80-90 DEG C, obtains anticorrosion acidifying carbon nanotube;

(4) above-mentioned sulfur oxychloride is mixed with DMF, stir, add above-mentioned anticorrosion acidifying carbon nanotube, insulated and stirred 20-24 hour in the water-bath of 70-75 DEG C, washs reaction product anhydrous tetrahydro furan, suction filtration, vacuum-drying, obtains chloride carbon nanotube;

(5) mixed with quadrol by above-mentioned chloride carbon nanotube, insulated and stirred 46-50 hour in the oil bath of 100-105 DEG C, washs reaction product methylene dichloride and dehydrated alcohol, suction filtration, vacuum-drying successively, obtains amination carbon nanotube;

(6) by the formalin of trimeric cyanamide, 35-37%, the mixing of amination carbon nanotube, insulated and stirred 10-20 minute at 70-75 DEG C, adjustment PH is 8-9, insulation reaction 2-3 hour, be placed in the vacuum drying oven of 30-35 DEG C, regulate PH to be 5-6 with citric acid after dewatering, in the baking oven of 50-60 DEG C, solidify 7-8 hour, obtain carbon nano-tube modification melmac;

(7) mixed with each raw material of residue by above-mentioned carbon nano-tube modification melmac, stir, send into twin screw extruder and melt extrude, the product extruded, through circulator bath cooling and pelletizing, to obtain final product.