CN103146159B - A kind of heat-resisting thickening reinforced composite of waste PET and preparation technology thereof - Google Patents
A kind of heat-resisting thickening reinforced composite of waste PET and preparation technology thereof Download PDFInfo
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- CN103146159B CN103146159B CN201310092292.1A CN201310092292A CN103146159B CN 103146159 B CN103146159 B CN 103146159B CN 201310092292 A CN201310092292 A CN 201310092292A CN 103146159 B CN103146159 B CN 103146159B
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- heat
- waste pet
- reinforced composite
- preparation technology
- resisting
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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
- B29C48/25—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
- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- 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
- B29C2948/92885—Screw or gear
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses the heat-resisting thickening reinforced composite of a kind of waste PET and preparation technology thereof, the raw materials of matrix material comprises waste PET material, nucleator, composite chainextender, toughner, toughener, dispersion agent and oxidation inhibitor, when preparing the heat-resisting thickening reinforced composite of waste PET, the first blend that waste PET material and toughner mix adds from main spout, nucleator, composite chainextender, dispersion agent and oxidation inhibitor add from the powder side feeding that main spout is other, toughener adds from the side spout extruding pusher side, by the feed way of this uniqueness, a small amount of Powdered auxiliary agent can be made to mix with major ingredient, improve the quality of finished-product material.Waste PET of the present invention heat-resisting thickening reinforced composite preparation technology technique is simple, is easy to realize industrialization, and waste PET heat-resisting thickening reinforced composite crystallization rate is fast, the high and excellent in mechanical performance of heat resisting temperature.
Description
Technical field
The present invention relates to industrial chemicals and recycle the heat-resisting thickening reinforced composite in field, particularly a kind of waste PET and preparation technology thereof.
Background technology
Polyethylene terephthalate is formed by terephthalic acid and oxalic acid polycondensation, be commonly referred to polyester or PET, in recent years, PET by a large amount of for making packing bottle, and the environmental pollution that disposable PET packing bottle causes after being dropped is day by day serious, cause worldwide concern.Reclaim waste PET bottle and not only can reduce environmental pollution, and can economize on resources, but, waste PET bottle is heated and easily degrades in the recovery course of processing, its molecular chain generation fracture causes molecular weight significantly to reduce, defects such as making it there is limiting viscosity coefficient low, stability of flow is poor, the demoulding is difficult, product impact property is poor, can not meet service requirements.Waste PET and various auxiliary agent are normally added by main spout by the modification preparation technology of waste PET material of the prior art, because auxiliary agent content is few, and are Powdered, cannot mix with waste PET, therefore, can affect the quality of the product of preparation.
Summary of the invention
The object of the invention is to waste PET to be mixed with auxiliary agent for the existing waste PET modification preparation technology described in background technology, cause the problem that quality of item is poor, a kind of heat-resisting thickening reinforced composite of waste PET and the preparation technology thereof that can solve foregoing problems are provided.
Realize object technical scheme of the present invention as follows:
A preparation technology for the heat-resisting thickening reinforced composite of waste PET, it comprises the following steps:
Step 1, preparation following raw materials according:
Step 2, by pulverizing cleaned waste PET major ingredient dry 5 hours at 120 DEG C;
Step 3, the waste PET of drying in step 2 and toughner are put into stirrer high speed and stirred evenly obtained first blend;
Step 4, dispersion agent, chainextender, nucleator and oxidation inhibitor are put into the blended 3-6min of high-speed mixer, obtained second blend;
Step 5, the first blend added and becomes owner of in spout, second blend is added in the powder side spout of becoming owner of and spout installing additional, then toughener is moved in the side spout of twin screw extruder side, forcing machine each district temperature is set at 220-280 DEG C, extrusion moulding.
Described nucleator comprises mineral-type nucleator and organic nucleator.
Described nucleator is composite nucleator, and it comprises TMC-328 multiamide compounds, talcum powder and nano silicon.
Described toughner is one or both in maleic anhydride grafts or methyl propenoic acid glycidyl fat grafts.
Described toughener is for carry out surface-treated glass fibre with silane coupling agent.
Described dispersion agent is ethylene bis stearic acid amide.
Described oxidation inhibitor is heat-resistance type oxidation inhibitor P262.
Implement the heat-resisting thickening reinforced composite of waste PET that above-mentioned preparation technology obtains, its component and ratio of weight and number as follows:
Described nucleator is composite nucleator, and it comprises TMC-328 multiamide compounds, talcum powder and nano silicon; Described toughner is one or both in maleic anhydride grafts or methyl propenoic acid glycidyl fat grafts; Described toughener is for carry out surface-treated glass fibre with silane coupling agent; Described dispersion agent is ethylene bis stearic acid amide; Described oxidation inhibitor is heat-resistance type oxidation inhibitor P262.
The heat-resisting thickening reinforced composite of waste PET of the present invention adds chainextender when producing, the molecular weight of PET is increased, viscosity strengthens, by adding toughness and the intensity of toughner and toughener raising material, shortening the shaping cycle of material by adding nucleator, improving the physical and mechanical propertiess such as the goods transparency, surface luster, tensile strength, rigidity, heat-drawn wire, shock resistance, creep resistance, by adding oxidation inhibitor, suppress or delay oxidation or the autoxidation process of goods, improve the quality of goods.Present invention employs unique feed way, the first blend that waste PET and toughner mix adds from main spout, the second blend that dispersion agent, chainextender, nucleator and oxidation inhibitor form is added from the side spout of main spout side, toughener is moved in the side spout of twin screw extruder side, by this feed way, avoid a small amount of Powdered auxiliary agent and mixed with resin inequality.Waste PET of the present invention heat-resisting thickening reinforced composite preparation technology processing mode is easy, machine-shaping cycle time, and its resistance toheat and molecular weight improve and have excellent mechanical property, and achieves and utilize the circulationization of waste PET.
Embodiment
Detailed illustrating is carried out to the specific embodiment of the present invention below:
Embodiment 1
A preparation technology for the heat-resisting thickening reinforced composite of waste PET, it comprises the following steps:
Step 1, preparation following raw materials according:
Step 2, by pulverizing cleaned waste PET major ingredient dry 5 hours at 120 DEG C;
Step 3, the waste PET of drying in step 2 and toughner are put into stirrer high speed and stirred evenly obtained first blend;
Step 4, dispersion agent, chainextender, nucleator and oxidation inhibitor are put into the blended 3-6min of high-speed mixer, obtained second blend;
Step 5, the first blend added and becomes owner of in spout, second blend is added in the powder side spout of becoming owner of and spout installing additional, then toughener is moved in the side spout of twin screw extruder side, forcing machine each district temperature is set at 220-280 DEG C, extrusion moulding.
In the step 5 of such scheme, district's temperature of forcing machine is at 245-255 DEG C, and two district's temperature are 255-265 DEG C, three district's temperature are 265-275 DEG C, and four district's temperature are 275-280 DEG C, and five district's temperature are 265-275 DEG C, six district's temperature are 255-265 DEG C, and seven district's temperature are 250-260 DEG C.
In such scheme, the screw speed of forcing machine: 100-400r/min, main feeding rotating speed: 20-40r/min, powder side feeding rotating speed: 3-15r/min, side feeding rotating speed: 5-40r/min.
Implement the heat-resisting thickening reinforced composite of waste PET that above-mentioned preparation technology obtains, its component and ratio of weight and number as follows:
Nucleator described in such scheme is composite nucleator, and it comprises TMC-328 multiamide compounds, talcum powder and nano silicon; Described toughner is one or both in maleic anhydride grafts or methyl propenoic acid glycidyl fat grafts; Described toughener is for carry out surface-treated glass fibre with silane coupling agent; Described dispersion agent is ethylene bis stearic acid amide; Described oxidation inhibitor is heat-resistance type oxidation inhibitor P262.
Embodiment 2
The heat-resisting thickening reinforced composite of the waste PET adopting the preparation technology of embodiment 1 to obtain, its component and ratio of weight and number as follows:
Embodiment 3
The heat-resisting thickening reinforced composite of the waste PET adopting the preparation technology of embodiment 1 to obtain, its component and ratio of weight and number as follows:
List is below the material modified performance comparison of waste PET prepared by the detection data of this embodiment and prior art, and these detection data can reflect the performance of the heat-resisting thickening reinforced composite of waste PET of the present invention intuitively:
As can be seen from the above table, the heat-resisting thickening reinforced composite of waste PET that waste PET of the present invention heat-resisting thickening reinforced composite preparation technology obtains, melt flow index is low, viscosity is high, and tensile strength is high, and shock-resistant ability is strong, flexural strength is high, HDT (heat-drawn wire) is high, and the various aspects of performance index of waste PET heat-resisting thickening reinforced composite, all apparently higher than waste PET modified composite material of the prior art, is more suitable for industrialized production and application.
Claims (9)
1. a preparation technology for the heat-resisting thickening reinforced composite of waste PET, is characterized in that: it comprises the following steps:
Step 1, preparation following raw materials according:
Step 2, by pulverizing cleaned waste PET major ingredient dry 5 hours at 120 DEG C;
Step 3, the waste PET of drying in step 2 and toughner are put into stirrer high speed and stirred evenly obtained first blend;
Step 4, dispersion agent, chainextender, nucleator and oxidation inhibitor are put into the blended 3-6min of high-speed mixer, obtained second blend;
Step 5, the first blend added and becomes owner of in spout, second blend is added in the powder side spout of becoming owner of and spout installing additional, then toughener is moved in the side spout of twin screw extruder side, forcing machine each district temperature is set at 220-280 DEG C, extrusion moulding;
Described nucleator is composite nucleator, and it comprises TMC-328 multiamide compounds, talcum powder and hydrophobic nano silicon;
Described chainextender comprises pyromellitic acid anhydride 0.2-0.5 part, Tetra hydro Phthalic anhydride 0.1-0.5 part, ADR-4370S0.2 part.
2. the preparation technology of the heat-resisting thickening reinforced composite of waste PET according to claim 1, is characterized in that: described toughner is one or both in maleic anhydride grafts or methyl propenoic acid glycidyl fat grafts.
3. the preparation technology of the heat-resisting thickening reinforced composite of waste PET according to claim 1, is characterized in that: described toughener is for carry out surface-treated glass fibre with silane coupling agent.
4. the preparation technology of the heat-resisting thickening reinforced composite of waste PET according to claim 1, is characterized in that: described dispersion agent is ethylene bis stearic acid amide.
5. the preparation technology of the heat-resisting thickening reinforced composite of waste PET according to claim 1, is characterized in that: described oxidation inhibitor is heat-resistance type oxidation inhibitor P262.
6. the preparation technology of the heat-resisting thickening reinforced composite of waste PET according to claim 1, it is characterized in that: in step 5, one district's temperature of forcing machine is at 245-255 DEG C, two district's temperature are 255-265 DEG C, three district's temperature are 265-275 DEG C, and four district's temperature are 275-280 DEG C, and five district's temperature are 265-275 DEG C, six district's temperature are 255-265 DEG C, and seven district's temperature are 250-260 DEG C.
7. the preparation technology of the heat-resisting thickening reinforced composite of waste PET according to claim 1, it is characterized in that: the screw speed of forcing machine: 100-400r/min, main feeding rotating speed: 20-40r/min, powder side feeding rotating speed: 3-15r/min, side feeding rotating speed: 5-40r/min.
8. implement the claims the heat-resisting thickening reinforced composite of waste PET that the preparation technology described in 1 obtains, it is characterized in that: its component and ratio of weight and number as follows:
9. the heat-resisting thickening reinforced composite of waste PET according to claim 8, it is characterized in that: described nucleator is composite nucleator, it comprises TMC-328 multiamide compounds, talcum powder and nano silicon; Described toughner is one or both in maleic anhydride grafts or methyl propenoic acid glycidyl fat grafts; Described toughener is for carry out surface-treated glass fibre with silane coupling agent; Described dispersion agent is ethylene bis stearic acid amide; Described oxidation inhibitor is heat-resistance type oxidation inhibitor P262.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310092292.1A CN103146159B (en) | 2013-03-22 | 2013-03-22 | A kind of heat-resisting thickening reinforced composite of waste PET and preparation technology thereof |
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| CN201310092292.1A CN103146159B (en) | 2013-03-22 | 2013-03-22 | A kind of heat-resisting thickening reinforced composite of waste PET and preparation technology thereof |
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| CN103146159A CN103146159A (en) | 2013-06-12 |
| CN103146159B true CN103146159B (en) | 2016-02-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107974058A (en) * | 2017-12-12 | 2018-05-01 | 广东工业大学 | A kind of composite polyester material based on recycled PET and preparation method thereof |
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| CN103305958A (en) * | 2013-06-27 | 2013-09-18 | 郑州大学 | Method for producing ribbon-like filaments through waste PET (polyethylene terephthalate) |
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| CN111978686B (en) * | 2020-08-25 | 2022-12-20 | 广州大学 | Regenerated polyester material and preparation method thereof |
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| CN113402859A (en) * | 2021-07-13 | 2021-09-17 | 惠州莹光塑胶颜料有限公司 | Tackifying PET (polyethylene terephthalate) master batch and preparation method thereof |
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