CN105295228A - Macromolecule plastic casing material of rice transplanter and preparation method of macromolecule plastic casing material - Google Patents

Abstract

The invention discloses a macromolecule plastic casing material of a rice transplanter. The material is prepared from, by weight, 2-3 parts of polyimide, 3-4 parts of carbon nano-tubes, 40-50 parts of sulfoxide chloride, 3-5 parts of N, N-dimethyl formamide, 100-120 parts of ethidene diamine, 16-20 parts of melamine, 36-40 parts of formalin with the concentration ranging from 35% to 37%, 170-200 parts of polyvinyl chloride, 20-30 parts of sulfuric acid with the concentration ranging from 75 wt% to 80 wt%, 30-40 parts of nitric acid with the concentration ranging from 95 wt% to 98 wt%, 2-3 parts of polyaspartic acid, 10-14 parts of glyceryl tristearate, 1-2 parts of urea, 3-4 parts of potassium titanate, 4-6 parts of magnesium hydroxide and 30-37 parts of kieselguhr. A plastic casing is high in surface strength, great in acid and alkali resistance, good in solarization resistance, not prone to being corroded and long in service life.

Description

A kind of rice transplanter high molecule plastic sheating material and preparation method thereof

Technical field

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

The present invention is achieved by the following technical solutions:

A kind of rice transplanter high molecule plastic sheating material, it is made up of the raw material of following weight parts:

The formalin 36-40 of polyimide 2-3, carbon nanotube 3-4, sulfur oxychloride 40-50, DMF 3-5, quadrol 100-120, trimeric cyanamide 16-20,35-37%, the nitric acid 30-40 of sulfuric acid 20-30,95-98wt% of polyvinyl chloride 170-200,75-80wt%, poly aspartic acid 2-3, Tristearoylglycerol 10-14, urea 1-2, potassium titanate 3-4, magnesium hydroxide 4-6, diatomite 30-37.

A preparation method for described rice transplanter high molecule plastic sheating 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) joined in 6-8 times of deionized water by above-mentioned polyimide, stir, add poly aspartic acid, insulated and stirred 3-5 minute at 70-75 DEG C, secure satisfactory grades sub-solution;

(3) join in macromolecular solution by above-mentioned filter cake, 100-200 rev/min is stirred 10-16 minute, dehydration, vacuum-drying 10-13 hour at 80-90 DEG C, and secure satisfactory grades sub-acidifying carbon nanotube;

(4) above-mentioned sulfur oxychloride is mixed with DMF, stir, add above-mentioned polymer acid carbon nano tube, 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) get the 20-30% of above-mentioned Tristearoylglycerol weight, the 6-10% of polyvinyl chloride weight, mix, add amination carbon nanotube, raised temperature is 65-70 DEG C, drips urea, adds magnesium hydroxide after dropwising, stir, obtain pre-treatment amination carbon nanotube;

(7) by the formalin of above-mentioned trimeric cyanamide, 35-37%, the mixing of pre-treatment 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;

(8) 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;

Plastic casing surface strength of the present invention is high, and resistance to acids and bases is strong, and Sun-proof is good, not perishable, long perfomance life.

Embodiment

A kind of rice transplanter high molecule plastic sheating material, it is made up of the raw material of following weight parts:

The formalin 36 of polyimide 2, carbon nanotube 3, sulfur oxychloride 40, DMF 3, quadrol 100, trimeric cyanamide 16,35%, polyvinyl chloride 170, the sulfuric acid 20 of 75wt%, the nitric acid 30 of 95wt%, poly aspartic acid 2, Tristearoylglycerol 10, urea 1, potassium titanate 3, magnesium hydroxide 4, diatomite 30.

A preparation method for described rice transplanter high molecule plastic sheating 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) joined in 6 times of deionized waters by above-mentioned polyimide, stir, add poly aspartic acid, insulated and stirred 3 minutes at 70 DEG C, secure satisfactory grades sub-solution;

(3) join in macromolecular solution by above-mentioned filter cake, 100 revs/min are stirred 10 minutes, dehydration, vacuum-drying 10 hours at 80 DEG C, and secure satisfactory grades sub-acidifying carbon nanotube;

(4) above-mentioned sulfur oxychloride is mixed with DMF, stir, add above-mentioned polymer acid carbon nano tube, 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) get 20% of above-mentioned Tristearoylglycerol weight, 6% of polyvinyl chloride weight, mix, add amination carbon nanotube, raised temperature is 65 DEG C, drips urea, adds magnesium hydroxide, stir, obtain pre-treatment amination carbon nanotube after dropwising;

(7) by above-mentioned trimeric cyanamide, 35% formalin, pre-treatment 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;

(8) 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: 23.2MPa;

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 (%)-8.3;

Extension at break velocity of variation (%)-7.8.

Claims (2)

1. a rice transplanter high molecule plastic sheating material, is characterized in that, it is made up of the raw material of following weight parts:

The formalin 36-40 of polyimide 2-3, carbon nanotube 3-4, sulfur oxychloride 40-50, DMF 3-5, quadrol 100-120, trimeric cyanamide 16-20,35-37%, the nitric acid 30-40 of sulfuric acid 20-30,95-98wt% of polyvinyl chloride 170-200,75-80wt%, poly aspartic acid 2-3, Tristearoylglycerol 10-14, urea 1-2, potassium titanate 3-4, magnesium hydroxide 4-6, diatomite 30-37.

2. a preparation method for rice transplanter high molecule plastic sheating 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) joined in 6-8 times of deionized water by above-mentioned polyimide, stir, add poly aspartic acid, insulated and stirred 3-5 minute at 70-75 DEG C, secure satisfactory grades sub-solution;

(3) join in macromolecular solution by above-mentioned filter cake, 100-200 rev/min is stirred 10-16 minute, dehydration, vacuum-drying 10-13 hour at 80-90 DEG C, and secure satisfactory grades sub-acidifying carbon nanotube;

(4) above-mentioned sulfur oxychloride is mixed with DMF, stir, add above-mentioned polymer acid carbon nano tube, 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) get the 20-30% of above-mentioned Tristearoylglycerol weight, the 6-10% of polyvinyl chloride weight, mix, add amination carbon nanotube, raised temperature is 65-70 DEG C, drips urea, adds magnesium hydroxide after dropwising, stir, obtain pre-treatment amination carbon nanotube;

(7) by the formalin of above-mentioned trimeric cyanamide, 35-37%, the mixing of pre-treatment 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;

(8) 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.