CN102010582B - Method for manufacturing plastic template by recycled modified polyethylene terephthalate bottle materials - Google Patents
Method for manufacturing plastic template by recycled modified polyethylene terephthalate bottle materials Download PDFInfo
- Publication number
- CN102010582B CN102010582B CN2010105514639A CN201010551463A CN102010582B CN 102010582 B CN102010582 B CN 102010582B CN 2010105514639 A CN2010105514639 A CN 2010105514639A CN 201010551463 A CN201010551463 A CN 201010551463A CN 102010582 B CN102010582 B CN 102010582B
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- Prior art keywords
- polyethylene terephthalate
- terephthalate bottle
- district
- plastic mould
- prepares
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B29C2948/92885—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
Abstract
The invention relates to a method for manufacturing a plastic template by recycled modified polyethylene terephthalate (PET) bottle materials, which comprises the following steps of: adding 15 to 22 weight parts of thermoplastic vulcanizate (TPV), 3 to 6 weight parts of ethylene/ethyl acrylate (EEA), 0.5 to 0.9 weight part of pentaerythrityl tetrakis[beta-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionate], 0.3 to 0.6 weight part of tri(1,2,2,6,6-pentamethyl-4-piperidyl) phosphite ester and 0.6 to 1.2 weight parts of rutile type titanium dioxide into 70 to 80 weight parts of recycled PET bottle materials serving as basic raw materials, and performing crushing, drying, mixing, extrusion, die-pressing, cooling and forming processes to manufacture the plastic template. Compared with a wooden template, the plastic template manufactured by the method has the characteristics of strong compressive strength, high resistance to impact, water absorption resistance, rot resistance, long service life and the like; and the method is applied in the fields of cement-cast floor templates, cement-cast bridge construction templates and the like.
Description
Technical field
The present invention relates to the preparation method of plastic mould, a kind of specifically modification polyethylene terephthalate bottle reclaimed material prepares the method for plastic mould.
Background technology
Polyethylene terephthalate (PET) is a kind of high crystallinity polymer; Have heat resisting temperature height, good, wear-resistant, the excellent characteristics of chemical resistance of creep resistant; Be widely used in fields such as synthon, electrical equipment, packing bottle, film, particularly obtained very widespread use in the drink pack industry.Adopt the PET bottle to be used for packings such as mineral water, soda pop, nectar, tea drink, have advantages such as good barrier property, intensity height, acid and alkali-resistance, cost are low, safety in utilization height, its consumption occupies first of the plastic food packing bottle.Because mostly the PET bottle is disposable use, along with abandoning in a large number of various PET packing bottle, the wasting of resources that causes thus and white pollution problems are serious day by day.At present, reclaim the waste PET bottle major part and be used to produce polyester staple fiber, added value is on the low side, and market demand day hastened towards saturation, how more effectively to utilize this resource of waste PET bottle, has become domestic and international research and development focus.The PET bottle reclaimed material is carried out modification, be used to extrude or inject and be processed into the high-performance plastic material products and become one of approach of giving priority to.Owing to have that crystallization velocity is slow, processing temperature is higher, shaping cycle is long, yield rate is low in the PET bottle reclaimed material course of processing, process behind the product shortcomings such as fragility is big, impact property difference.Therefore, how to improve the crystallization velocity of PET bottle reclaimed material effectively, shorten the machine-shaping cycle, improve the goods shock resistance, preparation high-performance, plastic alloy material have cheaply caused material engineering area research personnel's concern and attention.
In recent years; Some researchists adopt capacity increasing modifying or nucleater modified technology to improve resistance to impact shock, crystallization velocity and the processing characteristics of PET both at home and abroad; As to adopt maleic anhydride graft thermoplastic olefin class elastomerics be compatilizer; Improve the alternate interface cohesive action of PET/PC blend two, improve crystal property and the processing characteristics of PET, improve the impact resistance of PET/PC blend; And for example, adopting the PET bottle reclaimed material is body material, and metallocene linear-low density polyethylene (m-LLDPE) is a toughening material, and ethylene-octene copolymer (POE) is a compatilizer, and lanthanum trioxide is a nucleator, the preparation plastic pipe; For another example; With the PET bottle reclaimed material is basic raw material; Add styrene-butadiene-styrene block copolymer (SBS), maleic anhydride graft styrene-ethylene-butadiene-styrene block copolymer (SEBS-g-MAH), yellow soda ash, antioxidant 1010, the preparation water shoot.Retrieval number of patents document and the RP of publishing, it is basic raw material that Shang Weijian adopts polyethylene terephthalate bottle reclaimed material (PET bottle reclaimed material), thermoplasticity EPDM dynamic perduren (TPV) is a toughening material; Ethylene-ethyl acrylate copolymer (EEA) is a compatilizer; Add four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, three (1,2; 2; 6,6-pentamethyl--4-piperidyl) phosphorous acid ester, Rutile type Titanium Dioxide, adopt pulverize, dry, mix, extrude, the report of mold pressing, cooling, setting prepared plastic mould.
Summary of the invention
Crystallization velocity is slow, shaping cycle is long in order to overcome in the PET bottle reclaimed material course of processing, process behind the product defectives such as fragility is big, impact property difference, the invention provides the method that a kind of PET bottle reclaimed material prepares plastic mould.Present method is a basic raw material with the PET bottle reclaimed material; Add TPV, EEA, four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, three (1,2; 2; 6,6-pentamethyl--4-piperidyl) phosphorous acid ester, Rutile type Titanium Dioxide, through pulverize, dry, mix, extrude, mold pressing, cooling, setting processes form.The plastic mould of this method preparation is compared with wood template, have ultimate compression strength height, impact resistance good, do not absorb water, characteristics such as without putrefaction, long service life, be applicable to fields such as floor cement casting template, bridge construction cement casting template.
In order to realize that the technical scheme that the object of the invention adopts is:
Material and prescription
Polyethylene terephthalate (PET) bottle reclaimed material 70～80 weight parts, thermoplasticity EPDM dynamic perduren (TPV) 15～22 weight parts, ethylene-ethyl acrylate copolymer (EEA) 3～6 weight parts; Four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 0.5～0.9 weight part, three (1; 2,2,6; 6-pentamethyl--4-piperidyl) phosphorous acid ester 0.3～0.6 weight part, Rutile type Titanium Dioxide 0.6～1.2 weight part.
The preparation method
After will reclaiming PET bottle dusting and impurity, place crusher, be ground into the reclaimed materials fragment about 2.5mm * 2.5mm; Fragment is put into the constant temperature air dry oven, 155 ± 1 ℃ of control loft drier temperature, behind the dry 5h, weighing places impeller; Control stirrer rotating speed 500r/min, 102 ± 1 ℃ of temperature add TPV, EEA, four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, three (1 after measuring successively; 2,2,6; 6-pentamethyl--4-piperidyl) phosphorous acid ester and Rutile type Titanium Dioxide mix 8min, stir into compound; Compound is placed parallel dual-screw extruding machine; Control twin screw extruder barrel temperature: 195～200 ℃ in I district, 212～217 ℃ in II district, 228～233 ℃ in III district, 242～249 ℃ in IV district, 256～262 ℃ in V district, 262～265 ℃ in VI district, 261～264 ℃ of die heads, extrusion plasticizing agglutination material; The glue material is placed compression molding forming machine, 252～255 ℃ of control compression molding forming machine die temperatures, clamp time 5min is pressed into the sheet material that thickness is 13～15mm, behind naturally cooling 30 min, keeps flat setting and forms plastic mould.
The Shore D hardness of TPV of the present invention is 60, density is 0.92g/cm
3
The quality percentage composition of ethyl propenoate accounts for 20% of ethylene-ethyl acrylate copolymer quality percentage composition among the EEA of the present invention.
The invention has the beneficial effects as follows: 1. adopting TPV is toughening material, and the PET bottle reclaimed material is carried out blending and modifying, makes that crystallization velocity is accelerated in the PET bottle reclaimed material molding process, and shaping cycle shortens, and snappiness improves; 2. adopting EEA is compatilizer; PET bottle reclaimed material and TPV co-mixing system are carried out interface modification; Improve the alternate consistency of PET and TPV two, improved the alternate interfacial adhesion of PET bottle reclaimed material and TPV two, increased substantially the notched Izod impact strength and the elongation at break of PET/TPV sheet material; 3. adopt the plastic mould of present method preparation, compare with wood template, have ultimate compression strength height, impact resistance good, do not absorb water, characteristics such as without putrefaction, long service life, be applicable to fields such as floor cement casting template, bridge construction cement casting template.
Embodiment
Embodiment 1
After will reclaiming PET bottle dusting and impurity, place crusher, be ground into the reclaimed materials fragment about 2.5mm * 2.5mm; Fragment is put into the constant temperature air dry oven, and 155 ℃ of control loft drier temperature are behind the dry 5h; Take by weighing dried PET bottle reclaimed material fragment 75Kg and place impeller; Control stirrer rotating speed 500r/min, 102 ℃ of temperature add Shore D hardness and are 60, density is 0.92g/cm successively
3TPV 19Kg, the quality percentage composition that adds ethyl propenoate accounts for EEA 4.5Kg, four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 0.7 Kg, three (1 of ethylene-ethyl acrylate copolymer quality percentage composition 20%; 2; 2,6,6-pentamethyl--4-piperidyl) phosphorous acid ester 0.45 Kg, Rutile type Titanium Dioxide 0.9 Kg; Mix 8min, stir into compound; Compound is placed parallel dual-screw extruding machine, control twin screw extruder barrel temperature: 198 ℃ in I district, 215 ℃ in II district, 230 ℃ in III district, 246 ℃ in IV district, 260 ℃ in V district, 263 ℃ in VI district, 262 ℃ of die heads, extrusion plasticizing agglutination material; The glue material is placed compression molding forming machine, 254 ℃ of control compression molding forming machine die temperatures, mold pressing 5min is pressed into the sheet material that thickness is 14mm, behind naturally cooling 30 min, keeps flat setting and forms plastic mould.
Embodiment 2:
After will reclaiming PET bottle dusting and impurity, place crusher, be ground into the reclaimed materials fragment about 2.5mm * 2.5mm; Fragment is put into the constant temperature air dry oven, and 154 ℃ of control loft drier temperature are behind the dry 5h; Take by weighing dried PET bottle reclaimed material fragment 72Kg and place impeller; Control stirrer rotating speed 500r/min, 101 ℃ of temperature add Shore D hardness and are 60, density is 0.92g/cm successively
3TPV17Kg, the quality percentage composition that adds ethyl propenoate accounts for EEA 3.5Kg, four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 0.6 Kg, three (1 of ethylene-ethyl acrylate copolymer quality percentage composition 20%; 2; 2,6,6-pentamethyl--4-piperidyl) phosphorous acid ester 0.35 Kg, Rutile type Titanium Dioxide 0.7 Kg; Mix 8min, stir into compound; Compound is placed parallel dual-screw extruding machine, control twin screw extruder barrel temperature: 195 ℃ in I district, 217 ℃ in II district, 228 ℃ in III district, 249 ℃ in IV district, 258 ℃ in V district, 264 ℃ in VI district, 261 ℃ of die heads, extrusion plasticizing agglutination material; The glue material is placed compression molding forming machine, 252 ℃ of control compression molding forming machine die temperatures, mold pressing 5min is pressed into the sheet material that thickness is 13mm, behind naturally cooling 30 min, keeps flat setting and forms plastic mould.
Embodiment 3:
After will reclaiming PET bottle dusting and impurity, place crusher, be ground into the reclaimed materials fragment about 2.5mm * 2.5mm; Fragment is put into the constant temperature air dry oven, and 156 ℃ of control loft drier temperature are behind the dry 5h; Take by weighing dried PET bottle reclaimed material fragment 78Kg and place impeller; Control stirrer rotating speed 500r/min, 103 ℃ of temperature add Shore D hardness and are 60, density is 0.92g/cm successively
3TPV 20Kg, the quality percentage composition that adds ethyl propenoate accounts for EEA 5.5Kg, four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 0.8 Kg, three (1 of ethylene-ethyl acrylate copolymer quality percentage composition 20%; 2; 2,6,6-pentamethyl--4-piperidyl) phosphorous acid ester 0.55 Kg, Rutile type Titanium Dioxide 1.1 Kg; Mix 8min, stir into compound; Compound is placed parallel dual-screw extruding machine, control twin screw extruder barrel temperature: 200 ℃ in I district, 217 ℃ in II district, 233 ℃ in III district, 245 ℃ in IV district, 260 ℃ in V district, 265 ℃ in VI district, 263 ℃ of die heads, extrusion plasticizing agglutination material; The glue material is placed compression molding forming machine, 255 ℃ of control compression molding forming machine die temperatures, mold pressing 5min is pressed into the sheet material that thickness is 15mm, behind naturally cooling 30 min, keeps flat setting and forms plastic mould.
Claims (7)
1. a modification polyethylene terephthalate bottle reclaimed material prepares the method for plastic mould, it is characterized in that:
Material and prescription
Polyethylene terephthalate bottle reclaimed material 70～80 weight parts, thermoplasticity EPDM dynamic perduren 15～22 weight parts, ethylene-ethyl acrylate copolymer 3～6 weight parts; Four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 0.5～0.9 weight part, three (1; 2,2,6; 6-pentamethyl--4-piperidyl) phosphorous acid ester 0.3～0.6 weight part, Rutile type Titanium Dioxide 0.6～1.2 weight part;
The preparation method
1) will reclaim polyethylene terephthalate bottle dusting and impurity after, place crusher to be ground into fragment, put into the constant temperature air dry oven, the temperature and the time of drying of control constant temperature air dry oven, carry out drying;
2) weighing of dried recovery polyethylene terephthalate bottle fragment is placed impeller, control impeller rotating speed, temperature and churning time add thermoplasticity EPDM dynamic perduren, ethylene-ethyl acrylate copolymer, four [β-(3 after measuring successively; The 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, three (1; 2,2,6; 6-pentamethyl--4-piperidyl) phosphorous acid ester, Rutile type Titanium Dioxide mix into compound;
3) compound is placed parallel dual-screw extruding machine, control twin screw extruder barrel temperature, extrusion plasticizing agglutination material;
4) the glue material is placed the compression molding forming machine mould, control compression molding forming machine die temperature and clamp time are pressed into sheet material, form plastic mould through naturally cooling, setting.
2. modification polyethylene terephthalate bottle reclaimed material according to claim 1 prepares the method for plastic mould, and the Shore D hardness that it is characterized in that described thermoplasticity EPDM dynamic perduren is 60, density is 0.92g/cm
3
3. modification polyethylene terephthalate bottle reclaimed material according to claim 1 prepares the method for plastic mould, it is characterized in that the quality percentage composition of ethyl propenoate in the described ethylene-ethyl acrylate copolymer accounts for ethylene-ethyl acrylate copolymer quality percentage composition 20%.
4. modification polyethylene terephthalate bottle reclaimed material according to claim 1 prepares the method for plastic mould, and the temperature that it is characterized in that described constant temperature air dry oven is 155 ± 1 ℃, time of drying 5h.
5. modification polyethylene terephthalate bottle reclaimed material according to claim 1 prepares the method for plastic mould, and the rotating speed that it is characterized in that described impeller is 500r/min, and 102 ± 1 ℃ of temperature mix time 8min.
6. modification polyethylene terephthalate bottle reclaimed material according to claim 1 prepares the method for plastic mould, it is characterized in that described parallel dual-screw extruding machine barrel temperature is 195～200 ℃ in I district, 212～217 ℃ in II district, 228～233 ℃ in III district, 242～249 ℃ in IV district, 256～262 ℃ in V district, 262～265 ℃ in VI district, 261～264 ℃ of die heads.
7. modification polyethylene terephthalate bottle reclaimed material according to claim 1 prepares the method for plastic mould, it is characterized in that described compression molding forming machine die temperature is 252～255 ℃, clamp time 5min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105514639A CN102010582B (en) | 2010-11-20 | 2010-11-20 | Method for manufacturing plastic template by recycled modified polyethylene terephthalate bottle materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105514639A CN102010582B (en) | 2010-11-20 | 2010-11-20 | Method for manufacturing plastic template by recycled modified polyethylene terephthalate bottle materials |
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| Publication Number | Publication Date |
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| CN102010582A CN102010582A (en) | 2011-04-13 |
| CN102010582B true CN102010582B (en) | 2012-11-14 |
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| CN2010105514639A Expired - Fee Related CN102010582B (en) | 2010-11-20 | 2010-11-20 | Method for manufacturing plastic template by recycled modified polyethylene terephthalate bottle materials |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268175A (en) * | 2011-05-28 | 2011-12-07 | 福建师范大学 | Method for preparing plastic bench by utilizing biaxially oriented polyethylene glycol terephthalate tangle film reclaimed material |
| CN102321348B (en) * | 2011-07-13 | 2012-12-26 | 福建师范大学 | Method for preparing plastic tray from three-layer composite film recycled material |
| CN102532829B (en) * | 2012-02-03 | 2013-07-03 | 福建师范大学 | Method for preparing high-temperature resistant plastic pipes for transferring hot spring |
| CN112743737A (en) * | 2020-12-29 | 2021-05-04 | 江苏道达复合材料科技有限公司 | PET product processing system and processing method thereof |
| US20230060016A1 (en) * | 2021-08-03 | 2023-02-23 | Duraflex Hong Kong Limited | Recycled polyethylene terephthalate composition |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4895899A (en) * | 1987-12-23 | 1990-01-23 | Uniroyal Chemical Company, Inc. | Impact resistant polyethylene terephthalate/polycarbonate/polyethylene graft copolymer blends |
| CN101519523A (en) * | 2009-04-02 | 2009-09-02 | 中国科学院长春应用化学研究所 | High-toughness polyethylene glycol terephthalate alloy material and preparation method thereof |
-
2010
- 2010-11-20 CN CN2010105514639A patent/CN102010582B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4895899A (en) * | 1987-12-23 | 1990-01-23 | Uniroyal Chemical Company, Inc. | Impact resistant polyethylene terephthalate/polycarbonate/polyethylene graft copolymer blends |
| CN101519523A (en) * | 2009-04-02 | 2009-09-02 | 中国科学院长春应用化学研究所 | High-toughness polyethylene glycol terephthalate alloy material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李桂娟等.EPDM增韧PET的研究.《工程塑料应用》.2004,第32卷(第10期),17-19. * |
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