CN101434741A - Easy-mould high impact resistance regenerative PET/GF material special for automobile inner decoration member - Google Patents
Easy-mould high impact resistance regenerative PET/GF material special for automobile inner decoration member Download PDFInfo
- Publication number
- CN101434741A CN101434741A CNA2008102435036A CN200810243503A CN101434741A CN 101434741 A CN101434741 A CN 101434741A CN A2008102435036 A CNA2008102435036 A CN A2008102435036A CN 200810243503 A CN200810243503 A CN 200810243503A CN 101434741 A CN101434741 A CN 101434741A
- Authority
- CN
- China
- Prior art keywords
- mass parts
- regenerative pet
- pet
- impact resistance
- easy
- Prior art date
- 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.)
- Pending
Links
Abstract
The invention relates to a special high-impact reproduced PET/GF automotive upholstery material that is shaped easily, which comprises the following components according to mass portions: 55 portions to 80 portions of reproduced PET, 15 portions to 35 portions of GF, 5 portions to 10 portions of toughening agents, 1.0 portion to 3.0 portions of antioxidants, 0.2 portion to 0.7 portion of nucleating agents and 0.75 portion of chain extenders. A preparation method thereof comprises the following steps: (1) the reproduced PET goes through drying treatment; (2) after being dried, the reproduced PET is stirred and mixed with the chain extenders, the antioxidants and the nucleating agents to obtain a premix compound I; (3) the premix compound I is extruded into particles with a twin screw extruder under the vacuum condition and the obtained particles are dried; (4) after being dried, the particles are stirred and mixed with the toughening agents; (5) a premix compound II is obtained; and (6) the premix compound II is extruded into particles with a twin screw extruder under the vacuum condition and continuous long glass fibers are added through a glass fiber feeding mouth simultaneously. The PET/GF composite material obtained can be crystallized and shaped fast, has relatively high impact performance, high strength and low cost and is applicable to the production of automotive upholstery.
Description
Technical field
The present invention relates to a kind of easy-formation high impact resistance regenerative PET/GF automobile inner fitting special-purpose material.
Background technology
PET (polyethylene terephthalate) material crystallization rate is low, moulding process technology controlling and process complexity, and the cycle is long, and the degree of crystallinity temperature influence is big, and work range is narrow, and above shortcoming has greatly limited it and has used as engineering plastics.And because PET molecular structure decision, under the situation of suction chance heat, be easy to degrade, cause performances such as its heat, mechanics to descend greatly, this point especially shows on the regenerative PET material, because regenerated PET is through repeatedly processing, the brand-new PET material of various aspects of performance all descends a lot, and particularly impelling strength only has 20～30% of brand-new material.
Few about easy-formation high impact resistance regenerative PET/GF (glass fibre) composite study both at home and abroad at present, the product that is used for automotive upholstery still less.With PET material engineering plastic mainly is to solve its moulding processability and improve impelling strength two aspects.
Mainly be to add chainextender and nucleator aspect the forming property that improves material.Nucleator is many with nanoparticle, but the addition of this kind nucleator is more, the mechanical property of material is had certain influence, and price is higher.Chainextender is based on tetramethylolmethane more efficiently, and this kind chainextender consumption is wayward, and the excessive a little PET that causes easily is crosslinked in a large number, be difficult to extrude, and the damage screw rod.Normally add elastomeric grafts aspect toughness reinforcing, this method can significantly improve the impelling strength of PET.
Comprehensively it seems, the domestic so far matured product that does not still have easy-formation high impact resistance regenerative PET/GF automobile inner fitting special-purpose material, existing technological method processing condition complexity, modified effect especially shaping processability can improve not obvious.
Summary of the invention
The present invention will solve be exactly present regenerative PET/GF composite material forming process-cycle long, crystallization is inhomogeneous, mechanical property is low and existing high impact resistance regenerative PET/GF Composite Preparation exists complex process, inefficient problem provide a kind of easy-formation high impact resistance regenerative PET/GF automobile inner fitting special-purpose material.
Easy-formation high impact resistance regenerative PET of the present invention/GF automobile inner fitting special-purpose material comprises following component:
(1) regenerative PET (polyethylene terephthalate) 55～80 mass parts;
(2) GF (glass fibre) 15～35 mass parts;
(3) toughner 5～10 mass parts;
(4) oxidation inhibitor 1.0～3.0 mass parts;
(5) nucleator 0.2～0.7 mass parts;
(6) chainextender 0.75 mass parts.
Above-mentioned regenerative PET is the pulverizing material of PET goods such as Coke bottle.
Above-mentioned GF is an alkali-free glass fiber.
Above-mentioned oxidation inhibitor is antioxidant 1010, the two mixture with arbitrary proportion of oxidation inhibitor JC-1225.
Above-mentioned nucleator is organic layered silicate.
Above-mentioned chainextender is any one in 2,2 ' dimethylol propionic acid (DMPA), glycerol (glycerine), the polyglycerol acrylate;
Above-mentioned toughner is SEBS-GMA (graft copolymer of hydrogenated styrene-butadiene-styrene multipolymer and glycidyl methacrylate), POE-GMA (graft copolymer of POE and glycidyl methacrylate), EPDM-GMA (graft copolymer of terpolymer EP rubber and glycidyl methacrylate), E-MA-GMA (ethylene-propylene acetoacetic ester-glycidyl methacrylate triblock copolymer), hydroxy silicon oil, the mixture of any one in the polyether silicone oil or more than one arbitrary proportions.
Preparation method of the present invention comprises the steps:
1) regenerative PET is carried out drying treatment, make its water content be lower than 1%;
2) exsiccant regenerative PET and chainextender, oxidation inhibitor, nucleator were mixed under 800～1200 rev/mins rotating speed 3～5 minutes, get premix compound I;
3) with premix compound I through twin screw extruder extruding pelletization under vacuum condition, and with the gained pellet at 90 ℃ of following vacuum-drying 5～6h;
4) exsiccant pellet and toughner were mixed under 300～500 rev/mins rotating speed 2～3 minutes;
5) under 800～1200 rev/mins rotating speed, continued to mix 5～8 minutes, obtain premix compound II;
6) with premix compound II through twin screw extruder extruding pelletization under vacuum condition, simultaneously add the successive long glass fibres at the glass spout.
Above-mentioned steps 1) be at 90 ℃ of following vacuum-drying 5～6h.
The PET/GF matrix material crystalline forming that the present invention obtains is fast, has higher impact resistance, and intensity is big, and cost is low, can be used for the production of automotive interior part.
After testing, adopt easy-formation high impact resistance regenerative PET/GF automobile inner fitting special-purpose material that prescription of the present invention and technology makes can be when 80 ℃ of die temperatures, pressurize is rapid shaping under the condition of 12s cooling time, and the performance of resulting product is as follows with this understanding:
Ash content 15～35%
Izod notched Izod impact strength 100～250J/m
Tensile strength 60～90MPa
Bending strength 70～140MPa
Embodiment
Comparative Examples
Get the raw materials ready by following prescription:
(1) regenerative PET 75 mass parts
(2) GF 25 mass parts
The exsiccant regenerative PET is continuous through twin screw extruder extruding pelletization under vacuum condition, add the successive long glass fibres at the glass spout simultaneously.
Prepared PP Pipe Compound is when 80 ℃ of die temperatures, and pressurize is injection molding under the condition of 12s cooling time, and it is as follows to record the performance of goods with this understanding:
Ash content 24.2%
Izod notched Izod impact strength 21J/m
Tensile strength 80MPa
Bending strength 106MPa
Embodiment 1
Get the raw materials ready by following prescription:
(1) regenerative PET 65 mass parts;
(2) GF 25 mass parts;
(3) POE-GMA/ polyether silicone oil (3:1) 10 mass parts;
(4) 1010/JC-1225 (3:1) 1.0 mass parts;
(5) organic layered silicate 0.5 mass parts;
(6) DMPA 0.75 mass parts.
Exsiccant regenerative PET and DMPA, 1010, organic layered silicate were mixed under 900 rev/mins rotating speed 5 minutes, this Preblend is through twin screw extruder extruding pelletization under vacuum condition, and dry.Exsiccant pellet and POE-GMA/ polyether silicone oil mixture were mixed under 300 rev/mins rotating speed 3 minutes, under 1200 rev/mins rotating speed, continued to mix 7 minutes, through twin screw extruder extruding pelletization under vacuum condition, add the successive long glass fibres at the glass spout simultaneously.
Prepared PP Pipe Compound is when 80 ℃ of die temperatures, and pressurize is injection molding under the condition of 12s cooling time, and it is as follows to record the performance of goods with this understanding:
Ash content 23.3%
Izod notched Izod impact strength 153J/m
Tensile strength 65MPa
Bending strength 72MPa
Embodiment 2
Get the raw materials ready by following prescription:
(1) regenerative PET 65 mass parts;
(2) GF 25 mass parts;
(3) SEBS-GMA/ hydroxy silicon oil (3:1) 10 mass parts;
(4) 1010/JC-1225 (1:1) 2.0 mass parts;
(5) organic layered silicate 0.5 mass parts;
(6) DMPA 0.75 mass parts.
Exsiccant regenerative PET and DMPA, 1010, JC-1225, organic layered silicate were mixed under 800 rev/mins rotating speed 3 minutes, this Preblend is through twin screw extruder extruding pelletization under vacuum condition, and dry.Exsiccant pellet and SEBS-GMA/ hydroxy silicon oil mixture were mixed under 400 rev/mins rotating speed 2 minutes, under 1000 rev/mins rotating speed, continued to mix 6 minutes, through twin screw extruder extruding pelletization under vacuum condition, add the successive long glass fibres at the glass spout simultaneously.
Prepared PP Pipe Compound is when 80 ℃ of die temperatures, and pressurize is injection molding under the condition of 12s cooling time, and it is as follows to record the performance of goods with this understanding:
Ash content 23.8%
Izod notched Izod impact strength 203J/m
Tensile strength 71MPa
Bending strength 89MPa
Embodiment 3
Get the raw materials ready by following prescription:
(1) regenerative PET 65 mass parts;
(2) GF 25 mass parts;
(3) E-MA-GMA/EPDM-GMA (3:1) 10 mass parts;
(4) 1010/JC-1225 (2:1) 3.0 mass parts;
(5) organic layered silicate 0.7 mass parts;
(6) glycerine 0.75 mass parts.
Exsiccant regenerative PET and DMPA, 1010, JC-1225, organic layered silicate were mixed under 1000 rev/mins rotating speed 5 minutes, this Preblend is through twin screw extruder extruding pelletization under vacuum condition, and dry.Exsiccant pellet and E-MA--GMA/EPDM-GMA mixture were mixed under 300 rev/mins rotating speed 3 minutes, under 800 rev/mins rotating speed, continued to mix 5 minutes, through twin screw extruder extruding pelletization under vacuum condition, add the successive long glass fibres at the glass spout simultaneously.
Prepared PP Pipe Compound is when 80 ℃ of die temperatures, and pressurize is injection molding under the condition of 12s cooling time, and it is as follows to record the performance of goods with this understanding:
Ash content 24.3%
Izod notched Izod impact strength 241J/m
Tensile strength 70MPa
Bending strength 86MPa
Embodiment 4
Get the raw materials ready by following prescription:
(1) regenerative PET 70 mass parts;
(2) GF 25 mass parts;
(3) SEBS-GMA/ hydroxy silicon oil (3:1) 5 mass parts;
(4) 1010/JC-1225 (1:1) 2.0 mass parts;
(5) organic layered silicate 0.5 mass parts;
(6) DMPA 0.75 mass parts.
Exsiccant regenerative PET and DMPA, 1010, JC-1225, organic layered silicate were mixed under 900 rev/mins rotating speed 4 minutes, this Preblend is through twin screw extruder extruding pelletization under vacuum condition, and dry.Exsiccant pellet and SEBS-GMA/ hydroxy silicon oil mixture were mixed under 300 rev/mins rotating speed 2 minutes, under 800 rev/mins rotating speed, continued to mix 8 minutes, through twin screw extruder extruding pelletization under vacuum condition, add the successive long glass fibres at the glass spout simultaneously.
Prepared PP Pipe Compound is when 80 ℃ of die temperatures, and pressurize is injection molding under the condition of 12s cooling time, and it is as follows to record the performance of goods with this understanding:
Ash content 24.1%
Izod notched Izod impact strength 125J/m
Tensile strength 80MPa
Bending strength 99MPa
Embodiment 5
Get the raw materials ready by following prescription:
(1) regenerative PET 65 mass parts;
(2) GF 25 mass parts;
(3) SEBS-GMA 10 mass parts;
(4) 1010/JC-1225 (2:1) 3.0 mass parts;
(5) organic layered silicate 0.5 mass parts;
(6) polyglycerol acrylate 0.75 mass parts.
Exsiccant regenerative PET and polyglycerol acrylate, 1010, JC-1225, organic layered silicate were mixed under 800 rev/mins rotating speed 3 minutes, this Preblend is through twin screw extruder extruding pelletization under vacuum condition, and dry.Exsiccant pellet and SEBS-GMA were mixed under 300 rev/mins rotating speed 2 minutes, under 900 rev/mins rotating speed, continued to mix 6 minutes, through twin screw extruder extruding pelletization under vacuum condition, add the successive long glass fibres at the glass spout simultaneously.
Prepared PP Pipe Compound is when 80 ℃ of die temperatures, and pressurize is injection molding under the condition of 12s cooling time, and it is as follows to record the performance of goods with this understanding:
Ash content 24.2%
Izod notched Izod impact strength 225J/m
Tensile strength 79MPa
Bending strength 117MPa
Embodiment 6
Get the raw materials ready by following prescription:
(1) regenerative PET 65 mass parts;
(2) GF 25 mass parts;
(3) hydroxy silicon oil 10 mass parts;
(4) 1010/JC-1225 (1:2) 3.0 mass parts;
(5) organic layered silicate 0.5 mass parts;
(6) polyglycerol acrylate 0.75 mass parts.
Exsiccant regenerative PET and polyglycerol acrylate, 1010, JC-1225, organic layered silicate were mixed under 1200 rev/mins rotating speed 5 minutes, this Preblend is through twin screw extruder extruding pelletization under vacuum condition, and dry.Exsiccant pellet and hydroxy silicon oil were mixed under 500 rev/mins rotating speed 3 minutes, under 1200 rev/mins rotating speed, continued to mix 8 minutes, through twin screw extruder extruding pelletization under vacuum condition, add the successive long glass fibres at the glass spout simultaneously.
Prepared PP Pipe Compound is when 80 ℃ of die temperatures, and pressurize is injection molding under the condition of 12s cooling time, and it is as follows to record the performance of goods with this understanding:
Ash content 24.1%
Izod notched Izod impact strength 112J/m
Tensile strength 73MPa
Bending strength 87MPa
Embodiment 7
Get the raw materials ready by following prescription:
(1) regenerative PET 60 mass parts;
(2) GF 30 mass parts;
(3) hydroxy silicon oil 10 mass parts;
(4) 1010/JC-1225 (1:2) 3.0 mass parts;
(5) organic layered silicate 0.5 mass parts;
(6) polyglycerol acrylate 0.75 mass parts.
Exsiccant regenerative PET and polyglycerol acrylate, 1010, JC-1225, organic layered silicate were mixed under 1000 rev/mins rotating speed 3 minutes, this Preblend is through twin screw extruder extruding pelletization under vacuum condition, and dry.Exsiccant pellet and SEBS-GMA were mixed under 500 rev/mins rotating speed 3 minutes, under 1000 rev/mins rotating speed, continued to mix 5 minutes, through twin screw extruder extruding pelletization under vacuum condition, add the successive long glass fibres at the glass spout simultaneously.
Prepared PP Pipe Compound is when 80 ℃ of die temperatures, and pressurize is injection molding under the condition of 12s cooling time, and it is as follows to record the performance of goods with this understanding:
Ash content 29.0%
Izod notched Izod impact strength 102J/m
Tensile strength 85MPa
Bending strength 126MPa
Embodiment 8
Get the raw materials ready by following prescription:
(1) regenerative PET 60 mass parts;
(2) GF 30 mass parts;
(3) E-MA-GMA/ polyether silicone oil (3:1) 10 mass parts;
(4) 1010/JC-1225 (1:2) 3.0 mass parts;
(5) organic layered silicate 0.5 mass parts;
(6) DMPA 0.75 mass parts.
Exsiccant regenerative PET and DMPA, 1010, JC-1225, organic layered silicate were mixed under 900 rev/mins rotating speed 4 minutes, this Preblend is through twin screw extruder extruding pelletization under vacuum condition, and dry.Exsiccant pellet and E-MA-GMA/ polyether silicone oil were mixed under 300 rev/mins rotating speed 2 minutes, under 900 rev/mins rotating speed, continued to mix 8 minutes, through twin screw extruder extruding pelletization under vacuum condition, add the successive long glass fibres at the glass spout simultaneously.
Prepared PP Pipe Compound is when 80 ℃ of die temperatures, and pressurize is injection molding under the condition of 12s cooling time, and it is as follows to record the performance of goods with this understanding:
Ash content 29.1%
Izod notched Izod impact strength 189J/m
Tensile strength 83MPa
Bending strength 122MPa
Claims (9)
1, a kind of easy-formation high impact resistance regenerative PET/GF automobile inner fitting special-purpose material is characterized in that comprising following component:
(1) regenerative PET 55～80 mass parts;
(2) GF 15～35 mass parts;
(3) toughner 5～10 mass parts;
(4) oxidation inhibitor 1.0～3.0 mass parts;
(5) nucleator 0.2～0.7 mass parts;
(6) chainextender 0.75 mass parts.
2, easy-formation high impact resistance regenerative PET as claimed in claim 1/GF automobile inner fitting special-purpose material is characterized in that described regenerative PET is the pulverizing material of PET goods.
3, easy-formation high impact resistance regenerative PET as claimed in claim 1/GF automobile inner fitting special-purpose material is characterized in that described GF is an alkali-free glass fiber.
4, easy-formation high impact resistance regenerative PET as claimed in claim 1/GF automobile inner fitting special-purpose material is characterized in that described oxidation inhibitor is antioxidant 1010, the two mixture with arbitrary proportion of oxidation inhibitor JC-1225.
5, easy-formation high impact resistance regenerative PET as claimed in claim 1/GF automobile inner fitting special-purpose material is characterized in that described nucleator is organic layered silicate.
6, easy-formation high impact resistance regenerative PET as claimed in claim 1/GF automobile inner fitting special-purpose material is characterized in that described chainextender is any one in 2,2 ' dimethylol propionic acid, glycerol, the polyglycerol acrylate.
7, easy-formation high impact resistance regenerative PET as claimed in claim 1/GF automobile inner fitting special-purpose material is characterized in that described toughner is the mixture of any one or more than one arbitrary proportion in SEBS-GMA, POE-GMA, EPDM-GMA, E-MA-GMA, hydroxy silicon oil, the polyether silicone oil.
8, the preparation method of any described easy-formation high impact resistance regenerative PET/GF automobile inner fitting special-purpose material of claim 1 to 7 is characterized in that comprising the steps:
1) regenerative PET is carried out drying treatment, make its water content be lower than 1%;
2) exsiccant regenerative PET and chainextender, oxidation inhibitor, nucleator were mixed under 800～1200 rev/mins rotating speed 3～5 minutes, get premix compound I;
3) with premix compound I through twin screw extruder extruding pelletization under vacuum condition, and with the gained pellet at 90 ℃ of following vacuum-drying 5～6h;
4) exsiccant pellet and toughner were mixed under 300～500 rev/mins rotating speed 2～3 minutes;
5) under 800～1200 rev/mins rotating speed, continued to mix 5～8 minutes, obtain premix compound II;
6) with premix compound II through twin screw extruder extruding pelletization under vacuum condition, simultaneously adding successive GF at the glass spout is glass fibre.
9, as method as described in the claim 8, it is characterized in that step 1) is at 90 ℃ of following vacuum-drying 5～6h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102435036A CN101434741A (en) | 2008-12-15 | 2008-12-15 | Easy-mould high impact resistance regenerative PET/GF material special for automobile inner decoration member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102435036A CN101434741A (en) | 2008-12-15 | 2008-12-15 | Easy-mould high impact resistance regenerative PET/GF material special for automobile inner decoration member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101434741A true CN101434741A (en) | 2009-05-20 |
Family
ID=40709384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102435036A Pending CN101434741A (en) | 2008-12-15 | 2008-12-15 | Easy-mould high impact resistance regenerative PET/GF material special for automobile inner decoration member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101434741A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906672B (en) * | 2009-06-05 | 2011-09-21 | 上海市合成纤维研究所 | Device for synthesizing two-component fiber and method thereof |
| CN102417697A (en) * | 2011-09-22 | 2012-04-18 | 东莞上海大学纳米技术研究院 | Waste PET toughening tackifying method and PET pellet prepared by using same |
| CN103131138A (en) * | 2011-11-23 | 2013-06-05 | 合肥杰事杰新材料股份有限公司 | Thermoplastic polyester composition and preparation method thereof |
| CN104086956A (en) * | 2014-07-08 | 2014-10-08 | 彭朕财 | PET(PETG) (poly(ethylene terephthalate)(polyethylene terephthalate glycol)) tackifying and toughening agent |
| CN109867919A (en) * | 2017-12-04 | 2019-06-11 | 广州汽车集团股份有限公司 | Polyethylene terephthalate composite material, product and preparation method |
| CN110499006A (en) * | 2019-08-27 | 2019-11-26 | 武汉融科包装材料有限公司 | Coil of strip protective packaging high-impact plastic-steel endshield material and preparation method thereof |
| CN111072938A (en) * | 2019-12-16 | 2020-04-28 | 浙江恒澜科技有限公司 | Low-melting-point polyester and preparation method thereof |
| CN111187492A (en) * | 2020-02-17 | 2020-05-22 | 深圳市绿环再生资源开发有限公司 | Treatment method of PET waste film doped with metal belt |
| CN112920561A (en) * | 2021-01-27 | 2021-06-08 | 中山市玖裕贸易有限公司 | Glass fiber reinforced PET film regenerated particle composite material and preparation method thereof |
| CN115819938A (en) * | 2023-02-16 | 2023-03-21 | 佛山华新恒丰聚酯包装有限公司 | Reclaimed PET material, preparation method thereof and packaging bottle blank production process |
-
2008
- 2008-12-15 CN CNA2008102435036A patent/CN101434741A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906672B (en) * | 2009-06-05 | 2011-09-21 | 上海市合成纤维研究所 | Device for synthesizing two-component fiber and method thereof |
| CN102417697A (en) * | 2011-09-22 | 2012-04-18 | 东莞上海大学纳米技术研究院 | Waste PET toughening tackifying method and PET pellet prepared by using same |
| CN102417697B (en) * | 2011-09-22 | 2013-01-30 | 东莞上海大学纳米技术研究院 | Waste PET toughening tackifying method and PET pellet prepared by using same |
| CN103131138A (en) * | 2011-11-23 | 2013-06-05 | 合肥杰事杰新材料股份有限公司 | Thermoplastic polyester composition and preparation method thereof |
| CN103131138B (en) * | 2011-11-23 | 2016-05-11 | 合肥杰事杰新材料股份有限公司 | A kind of thermoplastic polyester composition and preparation method thereof |
| CN104086956A (en) * | 2014-07-08 | 2014-10-08 | 彭朕财 | PET(PETG) (poly(ethylene terephthalate)(polyethylene terephthalate glycol)) tackifying and toughening agent |
| CN109867919A (en) * | 2017-12-04 | 2019-06-11 | 广州汽车集团股份有限公司 | Polyethylene terephthalate composite material, product and preparation method |
| CN110499006A (en) * | 2019-08-27 | 2019-11-26 | 武汉融科包装材料有限公司 | Coil of strip protective packaging high-impact plastic-steel endshield material and preparation method thereof |
| CN111072938A (en) * | 2019-12-16 | 2020-04-28 | 浙江恒澜科技有限公司 | Low-melting-point polyester and preparation method thereof |
| CN111072938B (en) * | 2019-12-16 | 2022-07-08 | 浙江恒逸石化研究院有限公司 | Low-melting-point polyester and preparation method thereof |
| CN111187492A (en) * | 2020-02-17 | 2020-05-22 | 深圳市绿环再生资源开发有限公司 | Treatment method of PET waste film doped with metal belt |
| CN112920561A (en) * | 2021-01-27 | 2021-06-08 | 中山市玖裕贸易有限公司 | Glass fiber reinforced PET film regenerated particle composite material and preparation method thereof |
| CN115819938A (en) * | 2023-02-16 | 2023-03-21 | 佛山华新恒丰聚酯包装有限公司 | Reclaimed PET material, preparation method thereof and packaging bottle blank production process |
| CN115819938B (en) * | 2023-02-16 | 2023-04-14 | 佛山华新恒丰聚酯包装有限公司 | Reclaimed PET material, preparation method thereof and packaging bottle blank production process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101434741A (en) | Easy-mould high impact resistance regenerative PET/GF material special for automobile inner decoration member | |
| CN101602884B (en) | Heat-resistant polylactic acid composite material and preparation method thereof | |
| CN101195707B (en) | Glass fiber-reinforced nylon 6-polypropylene alloy material | |
| CN109535670B (en) | Full-degradable simulation material and preparation method thereof | |
| CN101580612B (en) | PP/PET alloy material and preparation process thereof | |
| CN113088055A (en) | High-performance polyvinyl alcohol-based composite material and preparation method thereof | |
| CN103342858A (en) | Chopped glass fiber reinforced polypropylene composite material and preparation method and application thereof | |
| CN107652641B (en) | Low-cost bio-based fully-degradable high-permeability membrane and preparation method thereof | |
| CN109456563B (en) | Special material for UHMWPE alloy compatibilization toughening modified polypropylene corrugated pipe and preparation method thereof | |
| CN104530666A (en) | High-temperature-resistant polylactic acid degradable material, high-temperature-resistant polylactic acid injection molded tableware, and preparation methods thereof | |
| CN108676341A (en) | PC/PMMA/PETG ternary-alloy materials and preparation method thereof | |
| CN102952376A (en) | High toughness, low warpage and high fluidity glass fiber reinforced PET/PBT/PC alloy and preparation method thereof | |
| CN103087480A (en) | High-toughness low-warping low-mold temperature glass fiber-reinforced PET/PA6 alloy and preparation method thereof | |
| CN110229497B (en) | Bio-based polyurethane/polylactic acid alloy film blowing material and preparation method thereof | |
| CN114369347B (en) | Degradable flow modification auxiliary agent and preparation method and application thereof | |
| CN113861636B (en) | High-stiffness high-toughness fully-degradable PBAT/PLA resin composition and preparation method thereof | |
| CN104250431A (en) | Low-gloss glass fiber-reinforced PET engineering plastic and manufacturing method thereof | |
| CN104341741A (en) | High performance low cost PET (polyethylene terephthalate)/PBT (polybutylene terephthalate) alloy and preparation method | |
| CN105462064A (en) | Polypropylene/polyethylene/wood fiber composite and preparation method thereof | |
| CN111073254A (en) | Lightweight, low-cost, low-odor and degradable natural fiber reinforced polycarbonate reclaimed material and preparation method thereof | |
| CN100532451C (en) | High impact-resistant reinforced PET composition and method of making the same | |
| CN110229421B (en) | High-temperature-resistant injection molding polypropylene material and preparation method and application thereof | |
| CN113980436A (en) | Modified polyester transparent composite material and preparation method thereof | |
| CN112322001A (en) | Impact-resistant modified PET plastic and preparation method thereof | |
| CN111454571A (en) | Preparation method of glass fiber reinforced PA56/PP alloy material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090520 |