CN101838420A - Solid energy saving screw cleaning agent - Google Patents
Solid energy saving screw cleaning agent Download PDFInfo
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- CN101838420A CN101838420A CN 201010161532 CN201010161532A CN101838420A CN 101838420 A CN101838420 A CN 101838420A CN 201010161532 CN201010161532 CN 201010161532 CN 201010161532 A CN201010161532 A CN 201010161532A CN 101838420 A CN101838420 A CN 101838420A
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Abstract
The invention provides a solid energy saving screw cleaning agent which can prepare non-corrosive and non-abrasive energy saving screw cleaning material. The raw material formula of the cleaning agent is as follows by weight percentage: 40-60% of matrix resin, 30%-40% of modified powder and 10-20% of auxiliary agent, and the sum of the weight percentage of all the components is 100%; the auxiliary agent is a cleaning surface, a surface active agent, a lubricating agent, a forming agent and a blowing activator; the raw material formula of the modified powder is as follows by weight percentage: 83-97% of inorganic powder, 2.0-8.0% of dispersing agent and 1.0-5.0% of coupling agent. According to the proportion of the formula, the matrix resin, the prepared modified powder, the cleaning agent, the surface active agent, the lubricating agent, the forming agent and the blowing activator are added into a high-speed mixer, and then are extruded and formed by an extruder to obtain the solid screen cleaning agent.
Description
Technical field
The present invention relates to technical field of polymer materials, be specifically related to a kind of development of solid energy saving screw cleaning agent.
Background technology
Plastics light weight, inexpensive, easy processing, performance are good, various in style, are one of materials very important in the modern society.In the plastic working process, more or less all can have raw material to accumulate in the processor, like this in colour changing, will cause the waste and the environmental pollution of raw material when operation such as reloading.Along with the increase year by year of plastics output, this situation is also more for serious.Purging method in the past, cleaning performance are all not really desirable, more powerless to the cleaning of carbon distribution especially, and the consumption of more human and material resources is all arranged simultaneously.At present solid screw cleaning agent commonly used all has certain limitation at aspects such as cleaning efficiency, environmental protection, costs on the China market, as the resin clean-out system of comparatively environmental protection, is difficult to clean to the positions such as dead angle, slit of screw cylinder, and cleaning efficiency is low; And added the screw cleaning agent of organic solvent, there is environmental pollution problems though improved cleaning efficiency; Those also make corresponding mechanical surface produce wearing and tearing when cleaning screw cylinder by adding the screw cleaning agent of abrasive.Present stage is domestic almost also not to have effect solid screw cleaning agent product preferably, and employed solid screw cleaning agent mainly is an imported product.
Summary of the invention
[0003] the invention provides a kind of solid energy saving screw cleaning agent, by selecting to have the resin of excellent compatibility as matrix, screening is also added the clean-out system, tensio-active agent, lubricant, whipping agent, blowing promotor etc. of certain proportioning, by the forcing machine extruding pelletization, prepare the energy saving screw cleaning material of non-aggressive, non-abrasive property.
[0004]Above-mentioned purpose is achieved through the following technical solutions:
The weight percent of the composition of raw materials of solid energy saving screw cleaning agent of the present invention is: 40～60% matrix resin, 30～40% modified powder, 10～20% auxiliary agent, and each component weight percent sum is 100%; Described auxiliary agent is clean-out system, tensio-active agent, lubricant, whipping agent, blowing promotor; The weight percent of the composition of raw materials of described modified powder is: 83-97% inorganic powder, 2.0-8.0% dispersion agent, 1.0-5.0% coupling agent; Described inorganic powder directly is 1250 orders-5000 order.
Described matrix resin be PP, PE, ABS, in one or more mixture; Described inorganic powder is one or several mixtures in lime carbonate, calcium hydroxide, the silicon-dioxide; Described coupling agent is titanic acid ester, aluminic acid ester or silane coupling agent, and described silane coupling agent is hexamethyldisilazane, hexamethyldisiloxane, vinyl three (methoxy ethoxy) silane, aminopropyl triethoxysilane; Described clean-out system is one or more mixtures in trisodium phosphate, sodium polyphosphate, yellow soda ash, water glass, the sodium sulfate; Described tensio-active agent is Sodium dodecylbenzene sulfonate, sodium laurylsulfonate, alkylphenol polyoxyethylene, EO/PO copolymerization tensio-active agent or fatty alcohol-polyoxyethylene ether; Described lubricant is stearic acid, Metallic stearates, paraffin, polyethylene wax or Poly Propylene Wax, and described Metallic stearates is as sodium stearate, strontium stearate, calcium stearate or Zinic stearas; Described whipping agent is one or more in sodium bicarbonate, Cellmic C 121, the p-toluene sulfonylsemicarbazide; Described blowing promotor is one or more in zinc oxide, zinc acetate, the zinc carbonate; In described dispersion agent desugar condensation sodium lignosulfonate, triethyl hexyl phosphoric acid, the fatty acid polyglycol ester one or more.
Concrete preparation process is as follows:
(1) modified powder preparation: inorganic powder oven dry under 110 ℃～150 ℃ is made its moisture content≤2%; Add dispersion agent by above-mentioned formula rate, mix 10～15min in high-speed mixer, add coupling agent then in proportion, with the 20～30min that mixes of inorganic powder, discharging is modified powder after mixing in high-speed mixer;
(2) screw cleaning agent preparation: will respectively the mixture of matrix resin, modified powder and clean-out system, tensio-active agent, lubricant, whipping agent, blowing promotor be added high-speed mixer by formula rate, high-speed mixing 5～30min postcooling to temperature is lower than 55 ℃ with bottom discharge under 70 ℃～120 ℃ condition, makes premix compound special; Preblend is promptly obtained the solid screw cleaning agent with extruder for shaping.
Wherein the described forcing machine of step (2) is that unit or conical double screw extruder are extruded in the two rank of parallel double-screw extruder, single screw rod; The extruder barrel temperature is 145～205 ℃, and die head temperature is 155～195 ℃, extrude product through extrude, cool off, dry, draw, cut into desired product.
Improve the action principle of mixture system consistency by cleaning, infiltration and the solubility promoter of tensio-active agent, the position that the general clean-out system such as dead angle, slit that makes the screw rod cleaning material be penetrated into screw cylinder apace is difficult to arrive, screw rod is cleaned up, avoid occurring repeatedly in process of production the residual of color and material, shorten scavenging period greatly, enhance productivity.Owing to adopt the cleaning and the non-aggressive cleaning material of non-abrasive property, therefore can not produce residual, etch, spot corrosion or wearing and tearing to machine, do not damage equipment.This screw cleaning agent is not only finished the conversion of all kinds of organic-inorganic pigment fast material-saving, can also clean the residual rotten resin, degradative resin and the resin carbonation thing that stick on screw rod, barrel and the die head synchronously, thereby enhance productivity greatly.Be widely used in material conversion, the color conversion of plastic cement industry in injection moulding, extrusion.
Remarkable advantage of the present invention:
1, economical and practical: the raw material that solid energy saving screw cleaning agent of the present invention adopts is common on the market chemical feedstocks, low price (costing an arm and a leg of imported product) and cleaning resin demand are energy-conservation more than 50%, only need a small amount of this screw cleaning agent can carry out fast and effectively cleaning, can not waste expensive resin.
2, convenient and swift: solid energy saving screw cleaning agent of the present invention cleans quick, compare with traditional purging method, cleaning process is saved time more than 80%, once cleans just can clean up, with the machine annesl, change material and clean and drop to stoppage time minimumly, improved production efficiency greatly.
3, be easy to use: solid energy saving screw cleaning agent of the present invention is easy to use, and does not need the special training to the operator, does not have hidden cost, does not need the temperature or the screw rod of machine are adjusted.
4, performance safety: solid energy saving screw cleaning agent of the present invention is non-abrasive property, nontoxic, free of contamination product, does not contain heavy metal, and the peculiar smell that can not occur in the cleaning process is safe for machine and operator.
5, convenient transportation: the proterties of solid energy saving screw cleaning agent of the present invention is a solid, has very big advantage in transportation.Because liquid product requirement in transportation at present is very strict, exists very big inconvenience on the import and export problem, solid phase prod has then significantly reduced this trouble on the one hand.
Embodiment
Below be concrete case study on implementation of the present invention, further describe the present invention, but the present invention be not limited only to this.
Embodiment 1
The oven dry under 120 ℃ of 1250 order 4.65kg lime carbonate is made its moisture content≤2%, add 0.25kg desugar condensation sodium lignosulfonate, in high-speed mixer, mix 10～15min, add the 0.1kg titanate coupling agent again, mix 20～30min in high-speed mixer, discharging generates modified powder after mixing.
Modified powder and the 1.5kg auxiliary agent (wherein auxiliary agent contains trisodium phosphate 0.2kg, sodium polyphosphate 0.1kg, Sodium dodecylbenzene sulfonate 0.3kg, sodium stearate 0.3, Cellmic C 121 0.3, zinc oxide 0.3) of 5kgPP resin, 3.5kg are added high-speed mixer, high-speed mixing 20min postcooling to temperature is lower than 55 ℃ with bottom discharge under 90 ℃ condition, makes premix compound special.Preblend is promptly obtained required solid screw cleaning agent with the parallel double-screw extruder extrusion moulding.The extruder barrel temperature is 145～205 ℃, and die head temperature is 155～195 ℃, extrude product through extrude, cool off, dry, draw, cut into desired product.
Embodiment 2
Calcium hydroxide oven dry under 120 ℃ of 2500 order 9.0kg is made its moisture content≤2%, add 6.0kg triethyl hexyl phosphoric acid, in high-speed mixer, mix 10～15min, add the 4kg aluminate coupling agent again, mix 20～30min in high-speed mixer, discharging generates modified powder after mixing.
The auxiliary agent (wherein auxiliary agent contains 0.1kg yellow soda ash, 0.1kg sodium sulfate, 0.1kg sodium laurylsulfonate, 0.1kg alkylphenol polyoxyethylene, 0.3kg polyethylene wax, 0.2kg sodium bicarbonate, 0.1kg zinc acetate) of 6kgPE resin, 3kg modified powder and 1kg is added high-speed mixer, high-speed mixing 20min postcooling to temperature is lower than 55 ℃ with bottom discharge under 90 ℃ condition, makes premix compound special.Preblend is promptly obtained required solid screw cleaning agent with the parallel double-screw extruder extrusion moulding.The extruder barrel temperature is 145～205 ℃, and die head temperature is 155～195 ℃, extrude product through extrude, cool off, dry, draw, cut into desired product.
Embodiment 3
Silicon-dioxide oven dry under 120 ℃ of 3000 order 8.7kg is made its moisture content≤2%, add the 0.8kg fatty acid polyglycol ester, in high-speed mixer, mix 10～15min, add 0.5kg hexamethyldisilazane coupling agent again, mix in high-speed mixer and stir 30min, discharging generates modified powder after mixing.
The auxiliary agent (wherein auxiliary agent contains 0.3kg water glass, 0.3kgEO/PO copolymerization tensio-active agent, 0.3kg fatty alcohol-polyoxyethylene ether, 0.5kg paraffin, 0.3kg sodium bicarbonate, 0.2kg p-toluene sulfonylsemicarbazide, 0.1kg zinc carbonate) of 4kgABS resin, 4kg modified powder and 2kg is added high-speed mixer, high-speed mixing 20min postcooling to temperature is lower than 55 ℃ with bottom discharge under 90 ℃ condition, makes premix compound special.Preblend is promptly obtained required solid screw cleaning agent with the parallel double-screw extruder extrusion moulding.The extruder barrel temperature is 145～205 ℃, and die head temperature is 155～195 ℃, extrude product through extrude, cool off, dry, draw, cut into desired product.
Embodiment 4
Carry out embodiment 1 according to same steps as, the technical indicator of the solid energy saving screw cleaning agent of producing sees Table 1, according to plumbous among standard GB/Z21274-2007, mercury, the detection method of cadmium is to plumbous in the clean-out system, mercury, the content of cadmium detects, data show that the solid energy saving screw cleaning agent that the present invention makes has energy-saving and emission-reduction, environment-protecting asepsis, screw rod is not caused advantages such as chemical corrosion, fundamentally solve traditional method and be difficult to clean to the dead angle of screw cylinder, positions such as slit, cleaning efficiency, clean shortcomings such as cost height, can be widely used in injection-moulding device, extrusion equipment, blow moulding equipment, plastic cement production every field such as plastic uptake equipment have vast market prospect.
The every performance index of table 1 solid high-efficiency energy saving screw cleaning agent
Claims (6)
1. solid energy saving screw cleaning agent, it is characterized in that: the weight percent of the composition of raw materials of described clean-out system is: 40～60% matrix resin, 30～40% modified powder, 10～20% auxiliary agent, each component weight percent sum is 100%; Described auxiliary agent is clean-out system, tensio-active agent, lubricant, whipping agent, blowing promotor; The weight percent of the composition of raw materials of described modified powder is: 83-97% inorganic powder, 2.0-8.0% dispersion agent, 1.0-5.0% coupling agent.
2. solid energy saving screw cleaning agent according to claim 1 is characterized in that: described inorganic powder directly is 1250 orders-5000 order.
3. solid energy saving screw cleaning agent according to claim 1 is characterized in that: described matrix resin be PP, PE, ABS, in one or more mixture; Described inorganic powder is one or several mixtures in lime carbonate, calcium hydroxide, the silicon-dioxide; Described coupling agent is titanic acid ester, aluminic acid ester or silane coupling agent; Described clean-out system is one or more mixtures in trisodium phosphate, sodium polyphosphate, yellow soda ash, water glass, the sodium sulfate; Described tensio-active agent is Sodium dodecylbenzene sulfonate, sodium laurylsulfonate, alkylphenol polyoxyethylene, EO/PO copolymerization tensio-active agent or fatty alcohol-polyoxyethylene ether; Described lubricant is stearic acid, Metallic stearates, paraffin, polyethylene wax or Poly Propylene Wax; Described whipping agent is one or more in sodium bicarbonate, Cellmic C 121, the p-toluene sulfonylsemicarbazide; Described blowing promotor is one or more in zinc oxide, zinc acetate, the zinc carbonate; In described dispersion agent desugar condensation sodium lignosulfonate, triethyl hexyl phosphoric acid, the fatty acid polyglycol ester one or more.
4. solid energy saving screw cleaning agent according to claim 1 is characterized in that: described silane coupling agent is hexamethyldisilazane, hexamethyldisiloxane, vinyl three (methoxy ethoxy) silane, aminopropyl triethoxysilane; Described Metallic stearates is as sodium stearate, strontium stearate, calcium stearate or Zinic stearas.
5. preparation technology as claim 1,2,3 or 4 described solid energy saving screw cleaning agents, it is characterized in that: concrete steps are as follows:
(1) modified powder preparation: inorganic powder oven dry under 110 ℃～150 ℃ is made its moisture content≤2%; Press formula rate and add dispersion agent, mix 10～15min in high-speed mixer, add coupling agent then in proportion, mix 20～30min with inorganic powder in high-speed mixer, discharging is modified powder after mixing;
(2) screw cleaning agent preparation: will respectively the mixture of matrix resin, modified powder and clean-out system, tensio-active agent, lubricant, whipping agent, blowing promotor be added high-speed mixer by formula rate, high-speed mixing 5～30min postcooling to temperature is lower than 55 ℃ with bottom discharge under 70 ℃～120 ℃ condition, makes premix compound special; Preblend is promptly obtained the solid screw cleaning agent with extruder for shaping.
6. the preparation technology of solid energy saving screw cleaning agent according to claim 5 is characterized in that: the described forcing machine of step (2) is that unit or conical double screw extruder are extruded in the two rank of parallel double-screw extruder, single screw rod; The extruder barrel temperature is 145～205 ℃, and die head temperature is 155～195 ℃, extrude product through extrude, cool off, dry, draw, cut into desired product.
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| CN2010101615325A CN101838420B (en) | 2010-05-04 | 2010-05-04 | Solid energy saving screw cleaning agent |
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| CN2010101615325A CN101838420B (en) | 2010-05-04 | 2010-05-04 | Solid energy saving screw cleaning agent |
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| CN101838420A true CN101838420A (en) | 2010-09-22 |
| CN101838420B CN101838420B (en) | 2012-05-30 |
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| CN2010101615325A Expired - Fee Related CN101838420B (en) | 2010-05-04 | 2010-05-04 | Solid energy saving screw cleaning agent |
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