CN103421335A - Harmless processing method of waste liquid crystal and plastic wood product prepared by waste liquid crystal - Google Patents
Harmless processing method of waste liquid crystal and plastic wood product prepared by waste liquid crystal Download PDFInfo
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- CN103421335A CN103421335A CN2012101513034A CN201210151303A CN103421335A CN 103421335 A CN103421335 A CN 103421335A CN 2012101513034 A CN2012101513034 A CN 2012101513034A CN 201210151303 A CN201210151303 A CN 201210151303A CN 103421335 A CN103421335 A CN 103421335A
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- waste liquid
- liquid crystal
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- waste
- plastic wood
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92923—Calibration, after-treatment or cooling zone
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention provides a harmless processing method of waste liquid crystal and a plastic wood product prepared by the waste liquid crystal. In the method, the waste liquid crystal as a bulking agent is added into raw materials for preparation of a plastic wood sectional material, and the plastic wood sectional material prepared by the waste liquid crystal is obtained by uniform mixing, blending, extrusion for granulation and extrusion for molding. Through use of the method, a plurality of types of liquid crystal and a mixture thereof can be simultaneously processed, and the method has strong applicability and low processing temperature, and solves the energy consumption problem of waste liquid crystal processing; at the same time, the method does not lead to liquid crystal decomposition so as to avoid the generation of toxic and hazardous compounds; and in the method, the waste liquid crystal as the bulking agent is added into plastic wood sectional material production, on the premise of no reduction of the performance of the plastic wood sectional material, the raw material cost of the plastic wood sectional material is reduced to a certain extent, waste materials are changed into things of value, and reasonable and effective implementation of the recycling of the waste liquid crystal is realized.
Description
Technical field
The present invention relates to the recycling of electron wastes, particularly relate to the brilliant method for innocent treatment of a kind of waste liquid and the brilliant system of waste liquid is moulded Wood products.
Background technology
Liquid-crystal display has the advantages such as electromagnetic-radiation-free, long lifetime, passive demonstration and less energy-consumption than CRT monitor, progressively replace CRT monitor, enters into common people family.Along with popularizing fast of liquid-crystal display, the liquid-crystal display of scrapping in a large number becomes the important component part of waste electric products gradually, and the resource utilization of consequent ecological environment problem and waste liquid crystal display causes people's extensive concern.Usually, the recycling treatment of waste liquid crystal display comprises and simply disassembling and each parts are independently recycled.
Liquid crystal is as the nucleus of liquid-crystal display, be generally organic compound mixture (mixed liquid crystal formed by biphenyls liquid crystal, cyclohexanes liquid crystal etc.), its complicated components and contain cyano group, fluorine, bromine, chlorine etc. and may produce the group of harm to environment.As deal with improperly easily environment, and then dangerous to human health.
At present, the processing mode of waste liquid crystalline substance is mainly pyrolytic decomposition (decomposition temperature is generally more than 900 ℃), but this treatment process energy consumption is high, with and process in liquid crystal monomer can recurring structure fracture, produce the aromatics such as phenol, benzoic acids and aldehyde, ketone, these poisonous and hazardous pyrolysis organic gass may cause serious pollution to environment.
Summary of the invention
For addressing the above problem, the present invention aims to provide the brilliant method for innocent treatment of a kind of waste liquid and the brilliant system of waste liquid is moulded Wood products.The method can be processed polytype liquid crystal and composition thereof simultaneously, and suitability is strong, and treatment temp is low, has solved the brilliant energy consumption problem of processing of waste liquid; Simultaneously, due to the decomposition temperature for the treatment of temp in the method lower than liquid crystal, thereby can not cause liquid crystal to decompose the generation of having avoided the poisonous and harmful compound; And in the method, using the waste liquid crystalline substance as weighting agent, join in the production of plastic-wood section, do not reduce the raw materials cost that to a certain degree reduces plastic-wood section under the prerequisite of plastic-wood section performance, turn waste into wealth, rationally effectively realized the recycling to the waste liquid crystalline substance.The brilliant system of the waste liquid that the method makes is moulded Wood products (plastic-wood section) and is had good physicals.
On the one hand, the brilliant method for innocent treatment of a kind of waste liquid provided by the invention comprises the following steps:
(1) take each component by following parts by weight: 0.1～2 part of 5～10 parts of 0.5～1.5 part, 0.5～3.5 part of 3～7 parts, 55～60 parts of plant fiber powders, waste liquid crystalline substance, coupling agent, oxidation inhibitor, the talcum powder of 30～40 parts of waste or used plastics, drying and toner, fully mix 8～25 minutes to mixing in high-speed mixer, make compound;
(2) compound is used to the twin screw extruder melt blending, extruding pelletization, processing temperature is 150～200 ℃, rotating speed is 140～200 rev/mins, makes and moulds the Wood products pellet;
(3) will mould the Wood products pellet and add in forcing machine and carry out extrusion moulding, make plastic-wood section.
Join the waste liquid crystalline substance as weighting agent in the raw materials for production of plastic-wood section in step (1), to a certain degree reduce the raw materials cost of plastic-wood section under the prerequisite that does not reduce the plastic-wood section performance.Liquid crystal has good mobility, it typically is the one-dimensional chain structure, and main chain has certain flexibility.Preferably, the waste liquid crystalline substance is one or more in polyphenyl methane amide, PPTA, polybenzothiozole, polyphenyl even azoles.
Source and the kind of waste or used plastics are not limit.Preferably, waste or used plastics is selected from one or more in polyethylene, polypropylene, polyvinyl chloride, polystyrene, acrylonitrile-butadiene-styrene (ABS) and polycarbonate.
The powder of dry plant fiber powder for obtaining through drying treatment.Preferably, the water ratio of dry plant fiber powder is 2～10%.
Preferably, coupling agent is selected from titanic acid ester or silane coupling agent.More preferably, silane coupling agent is selected from hexamethyldisilazane, hexamethyldisiloxane, vinyl three (methoxy ethoxy) silane or vinyltrimethoxy silane.
Preferably, oxidation inhibitor is selected from one or more in 4-methyl-6-tert-butylphenol, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester and 2,6 ditertiary butyl p cresol.
On the other hand, the invention provides the brilliant system of a kind of waste liquid and mould Wood products, meter comprises following component by weight: 0.1～2 part of 5～10 parts of 0.5～1.5 part, 0.5～3.5 part of 3～7 parts, 55～60 parts of plant fiber powders, waste liquid crystalline substance, coupling agent, oxidation inhibitor, the talcum powder of 30～40 parts of waste or used plastics, drying and toner.
Preferably, the waste liquid crystalline substance is one or more in polyphenyl methane amide, PPTA, polybenzothiozole, polyphenyl even azoles.
Source and the kind of waste or used plastics are not limit.Preferably, waste or used plastics is selected from one or more in polyethylene, polypropylene, polyvinyl chloride, polystyrene, acrylonitrile-butadiene-styrene (ABS) and polycarbonate.
Dry plant fiber powder is for also pulverizing through drying treatment the powder made.Preferably, the water ratio of dry plant fiber powder is 2～10%.
Preferably, coupling agent is selected from titanic acid ester or silane coupling agent.More preferably, silane coupling agent is selected from hexamethyldisilazane, hexamethyldisiloxane, vinyl three (methoxy ethoxy) silane or vinyltrimethoxy silane.
Preferably, oxidation inhibitor is selected from one or more in 4-methyl-6-tert-butylphenol, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester and 2,6 ditertiary butyl p cresol.
The brilliant method for innocent treatment of a kind of waste liquid provided by the invention and the brilliant system of waste liquid are moulded Wood products, have following beneficial effect:
(1) the inventive method can be processed polytype liquid crystal and composition thereof simultaneously, and suitability is strong, and treatment temp is low, has solved the brilliant energy consumption problem of processing of waste liquid;
(2) decomposition temperature of liquid crystal generally is greater than 230 ℃, in the inventive method treatment temp lower than the decomposition temperature of liquid crystal, thereby can not cause liquid crystal to decompose having avoided the generation of poisonous and harmful compound;
(3) join the waste liquid crystalline substance as weighting agent in the inventive method in the production of plastic-wood section, do not reduce the raw materials cost that to a certain degree reduces plastic-wood section under the prerequisite of plastic-wood section performance, turn waste into wealth, rationally effectively realized the recycling to the waste liquid crystalline substance.
Embodiment
The following stated is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also are considered as protection scope of the present invention.
Embodiment mono-
The brilliant method for innocent treatment of a kind of waste liquid comprises the following steps:
(1) take each component by following parts by weight: 35 parts, waste polyethylene plastics, drying process after 0.3 part of water ratio be 2% brilliant 5 parts of 55 parts of plant fiber powders, waste liquid, 2.5 parts of hexamethyldisiloxane, 1.5 parts of 4-methyl-6-tert-butylphenols, 8 parts of talcum powder and toner, fully mix 10 minutes to mixing in high-speed mixer, make compound;
(2) compound is used to the twin screw extruder melt blending, extruding pelletization, processing temperature is 150 ℃, rotating speed is 180 rev/mins, makes and moulds the Wood products pellet;
(3) will mould the Wood products pellet and add in forcing machine and carry out extrusion moulding, and make the brilliant system of waste liquid and mould the Wood products plastic-wood section.
Embodiment bis-
The brilliant method for innocent treatment of a kind of waste liquid comprises the following steps:
(1) take each component by following parts by weight: 40 parts, waste polyethylene plastics, drying process after 2 parts of water ratio be 5% brilliant 7 parts of 55 parts of plant fiber powders, waste liquid, 0.5 part, vinyl three (methoxy ethoxy) silane, 0.5 part of three [2.4-di-tert-butyl-phenyl] phosphorous acid ester, 5 parts of talcum powder and toners, fully mix 8 minutes to mixing in high-speed mixer, make compound;
(2) compound is used to the twin screw extruder melt blending, extruding pelletization, processing temperature is 200 ℃, rotating speed is 140 rev/mins, makes and moulds the Wood products pellet;
(3) will mould the Wood products pellet and add in forcing machine and carry out extrusion moulding, and make the brilliant system of waste liquid and mould the Wood products plastic-wood section.
Embodiment tri-
The brilliant method for innocent treatment of a kind of waste liquid comprises the following steps:
(1) take each component by following parts by weight: 30 parts of waste polypropylene plastics, drying process after 3.5 parts of water ratio be 10% 60 parts of plant fiber powders, 3 parts, the mixture of waste liquid crystalline substance, vinyltrimethoxy silanes, 2,0.1 part of 1 part of 6-ditertbutylparacresol, 10 parts of talcum powder and toner, fully mix 25 minutes to mixing in high-speed mixer, make compound;
(2) compound is used to the twin screw extruder melt blending, extruding pelletization, processing temperature is 160 ℃, rotating speed is 155 rev/mins, makes and moulds the Wood products pellet;
(3) will mould the Wood products pellet and add in forcing machine and carry out extrusion moulding, and make the brilliant system of waste liquid and mould the Wood products plastic-wood section.
Claims (10)
1. the brilliant method for innocent treatment of waste liquid, is characterized in that, comprises the following steps:
(1) take each component by following parts by weight: 0.1～2 part of 5～10 parts of 0.5～1.5 part, 0.5～3.5 part of 3～7 parts, 55～60 parts of plant fiber powders, waste liquid crystalline substance, coupling agent, oxidation inhibitor, the talcum powder of 30～40 parts of waste or used plastics, drying and toner, fully mix 8～25 minutes to mixing in high-speed mixer, make compound;
(2) by described compound twin screw extruder melt blending, extruding pelletization, processing temperature is 150～200 ℃, rotating speed is 140～200 rev/mins, makes and moulds the Wood products pellet;
(3) the described Wood products pellet of moulding is added in forcing machine and carries out extrusion moulding, make plastic-wood section.
2. the method for claim 1, is characterized in that, in step (1), described waste liquid crystalline substance is one or more in polyphenyl methane amide, PPTA, polybenzothiozole, polyphenyl even azoles.
3. the method for claim 1, is characterized in that, in step (1), described waste or used plastics is selected from one or more in polyethylene, polypropylene, polyvinyl chloride, polystyrene, acrylonitrile-butadiene-styrene (ABS) and polycarbonate.
4. the method for claim 1, is characterized in that, in step (1), the water ratio of the plant fiber powder of described drying is 2～10%.
5. the method for claim 1, is characterized in that, in step (1), described coupling agent is selected from titanic acid ester or silane coupling agent.
6. method as claimed in claim 5, is characterized in that, in step (1), described silane coupling agent is selected from hexamethyldisilazane, hexamethyldisiloxane, vinyl three (methoxy ethoxy) silane or vinyltrimethoxy silane.
7. the method for claim 1, is characterized in that, in step (1), described oxidation inhibitor is selected from one or more in 4-methyl-6-tert-butylphenol, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester and 2,6 ditertiary butyl p cresol.
8. the brilliant system of waste liquid is moulded Wood products, it is characterized in that, meter comprises following component by weight: 0.1～2 part of 5～10 parts of 0.5～1.5 part, 0.5～3.5 part of 3～7 parts, 55～60 parts of plant fiber powders, waste liquid crystalline substance, coupling agent, oxidation inhibitor, the talcum powder of 30～40 parts of waste or used plastics, drying and toner.
9. the brilliant system of waste liquid as claimed in claim 8 is moulded the Wood products product, it is characterized in that, described waste liquid crystalline substance is one or more in polyphenyl methane amide, PPTA, polybenzothiozole, polyphenyl even azoles.
10. the brilliant system of waste liquid as claimed in claim 8 is moulded Wood products, it is characterized in that, the water ratio of the plant fiber powder of described drying is 2～10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101513034A CN103421335A (en) | 2012-05-16 | 2012-05-16 | Harmless processing method of waste liquid crystal and plastic wood product prepared by waste liquid crystal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101513034A CN103421335A (en) | 2012-05-16 | 2012-05-16 | Harmless processing method of waste liquid crystal and plastic wood product prepared by waste liquid crystal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103421335A true CN103421335A (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101513034A Pending CN103421335A (en) | 2012-05-16 | 2012-05-16 | Harmless processing method of waste liquid crystal and plastic wood product prepared by waste liquid crystal |
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| CN (1) | CN103421335A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104530739B (en) * | 2015-01-28 | 2016-08-24 | 东北林业大学 | A kind of polyolefin-based wood plastic composite of thermotropic high molecule liquid crystal activeness and quietness |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999610A (en) * | 2006-01-12 | 2007-07-18 | 中国林业科学研究院木材工业研究所 | Wood plastic composite material composection and formed board thereof and their preparation process |
| CN101747639A (en) * | 2008-12-12 | 2010-06-23 | 比亚迪股份有限公司 | Wood plastic composite composition, wood plastic composite and preparation method thereof |
| CN101942140A (en) * | 2010-10-12 | 2011-01-12 | 曾广胜 | Wood plastic composite foaming material and forming process and equipment thereof |
| CN102108213A (en) * | 2010-12-24 | 2011-06-29 | 上海国成塑料有限公司 | Preparation method of wood-plastic compound material with improved strength |
| TW201134564A (en) * | 2010-04-07 | 2011-10-16 | Univ Far East | Method of preparing wood plastic composite containing liquid crystal glass powder |
-
2012
- 2012-05-16 CN CN2012101513034A patent/CN103421335A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999610A (en) * | 2006-01-12 | 2007-07-18 | 中国林业科学研究院木材工业研究所 | Wood plastic composite material composection and formed board thereof and their preparation process |
| CN101747639A (en) * | 2008-12-12 | 2010-06-23 | 比亚迪股份有限公司 | Wood plastic composite composition, wood plastic composite and preparation method thereof |
| TW201134564A (en) * | 2010-04-07 | 2011-10-16 | Univ Far East | Method of preparing wood plastic composite containing liquid crystal glass powder |
| CN101942140A (en) * | 2010-10-12 | 2011-01-12 | 曾广胜 | Wood plastic composite foaming material and forming process and equipment thereof |
| CN102108213A (en) * | 2010-12-24 | 2011-06-29 | 上海国成塑料有限公司 | Preparation method of wood-plastic compound material with improved strength |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104530739B (en) * | 2015-01-28 | 2016-08-24 | 东北林业大学 | A kind of polyolefin-based wood plastic composite of thermotropic high molecule liquid crystal activeness and quietness |
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Application publication date: 20131204 |