CN103980652A - Chain-extension waste and old electric appliance casing ABS plastic and preparation method thereof - Google Patents

Chain-extension waste and old electric appliance casing ABS plastic and preparation method thereof Download PDF

Info

Publication number
CN103980652A
CN103980652A CN201410168353.2A CN201410168353A CN103980652A CN 103980652 A CN103980652 A CN 103980652A CN 201410168353 A CN201410168353 A CN 201410168353A CN 103980652 A CN103980652 A CN 103980652A
Authority
CN
China
Prior art keywords
waste
abs plastic
old
abs
chain
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.)
Granted
Application number
CN201410168353.2A
Other languages
Chinese (zh)
Other versions
CN103980652B (en
Inventor
李迎春
王嘉
李洁
王文生
杜拴丽
贺茂勇
宋晶晶
马星慧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
North University of China
Original Assignee
North University of China
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by North University of China filed Critical North University of China
Priority to CN201410168353.2A priority Critical patent/CN103980652B/en
Publication of CN103980652A publication Critical patent/CN103980652A/en
Application granted granted Critical
Publication of CN103980652B publication Critical patent/CN103980652B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/12—Making granules characterised by structure or composition
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • 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
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • 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
    • B29C2948/92514—Pressure
    • 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
    • B29C2948/92561—Time, e.g. start, termination, duration or interruption
    • 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
    • B29C2948/92838—Raw material pre-treatment, e.g. drying or cleaning

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

The invention relates to the technical field of high-molecular material, and concretely relates to a chain-extension waste and old electric appliance casing ABS plastic and a preparation method thereof, and the chain-extension waste and old electric appliance casing ABS plastic comprises the following raw materials by weight: 100 parts of waste and old ABS and 0.1-0.9 parts of epoxy resin. The chain-extension waste and old electric appliance casing ABS plastic employs epoxy resin as a chain extender, the prepared chain-extension waste and old electric appliance casing ABS plastic has good mechanical property and processing performance, the waste and old ABS plastic has obviously increased impact performance, stretching performance and bending property, processing property of the material is improved, and the product strength is increased.

Description

Chain extension waste electrical equipment shell ABS plastic and preparation method thereof
Technical field
The present invention relates to technical field of polymer materials, specifically a kind of chain extension waste electrical equipment shell ABS plastic and preparation method thereof.
Background technology
ABS plastic is a kind of interchangeable heat plastic resin with good impact performance and good moulding processability, and ABS plastic is because its over-all properties is remarkable, machine-shaping is convenient and have wide range of applications and obtain fast development.Waste electrical equipment amount of plastic grows with each passing day at present; at these electric appliance casings, by ABS plastic in plastics, occupy larger specific gravity; so scientificlly and effectively reclaim and utilize waste and old ABS plastic; not only can be used as the new forms of energy of 21 century; and be protection of the environment, the effective means that realizes Sustainable development, be an important content of developing a circular economy.
ABS is after life-time service, be subject to the impact of environment for use, there is to a certain degree aging, and the technological processs such as the fragmentation in removal process, extruding pelletization, injection moulding also can further be accelerated its weathering process, wherein for ABS provides the rubber phase degree of aging of toughness more obvious, so the toughness of waste and old ABS declines by a big margin.Therefore, be necessary to take measures to end or slow down the aging of waste and old ABS in removal process.
Summary of the invention
The present invention, in order to end or to slow down the aging of waste and old ABS in removal process, provides a kind of chain extension waste electrical equipment shell ABS plastic and preparation method thereof.
The present invention is achieved by the following technical solutions: chain extension waste electrical equipment shell ABS plastic, it is to be made by the raw material of following weight part, 100 parts of waste and old ABS, 0.1～0.9 part of epoxy resin.
Those skilled in the art, except adopting preparation method of the present invention, by conventional extruding and pelletizing process, can obtain chain extension waste electrical equipment shell ABS plastic of the present invention.
Through performance test, its notched Izod impact strength of waste and old ABS of recovery is 1.56 kJ/m 2left and right, tensile strength is 13.92MPa left and right, and flexural strength is 39.16 MPa left and right, and modulus in flexure is 1591.66MPa left and right.By formula of the present invention, adopting chainextender---after the extruding and pelletizing process of epoxy resin and routine, finished product is injection molded into standard testing batten by injection moulding machine, its notched Izod impact strength is at least 1.5kJ/m 2, tensile strength is at least 13MPa, and flexural strength is at least 39 MPa, and modulus in flexure is at least 1500MPa.
Further, the preparation method of described chain extension waste electrical equipment shell ABS plastic, the steps include:
(1) broken worn-out ABS, takes raw material by weight ratio;
(2) waste and old ABS puts into the baking oven vacuum-drying 8h that 80 ℃, pressure are 0.09MPa; Epoxy resin is put into the baking oven vacuum-drying 8h that 30 ℃, pressure are 0.09MPa;
(3) the waste and old ABS after step (2) is processed is evenly mixed and adds twin screw extruder with epoxy resin, extrusion temperature is 190～230 ℃, and rear cooling, drying-granulating is extruded in discharging, gets product.
But by preparation method of the present invention, finished product is injection molded into standard testing batten by injection moulding machine, its notched Izod impact strength is at least 5 kJ/m 2, tensile strength is at least 19MPa, and flexural strength is at least 64 MPa, and modulus in flexure is at least 2450MPa.
Chain extension waste electrical equipment shell ABS plastic of the present invention, employing epoxy resin is chainextender, the waste and old ABS plastic of chain extension of preparation has good mechanical property and processing characteristics, impact property, tensile property and the bending property of waste and old ABS plastic are all significantly improved, and Drawing abillity improves, improved product strength.
Embodiment
performance test
Impact experiment is tested by GB/T184-89, and testing apparatus is the XJU-22 shock-testing machine of Chengde trier limited liability company.
Stretching experiment is tested by GB/T1040-92, and testing apparatus is the CMT6104 microcomputer controlled electronic universal testing machine that materiology company limited is newly thought carefully by Shenzhen.
Crooked experiment is tested by GB/T9341-2000, and testing apparatus is the CMT6104 microcomputer controlled electronic universal testing machine that materiology company limited is newly thought carefully by Shenzhen.
every part of embodiment 1(is 1kg)
The preparation method of described chain extension waste electrical equipment shell ABS plastic, the steps include:
(1) broken worn-out ABS, takes waste and old ABS 100kg, epoxy resin 0.1 kg;
(2) waste and old ABS puts into the baking oven vacuum-drying 8h that 80 ℃, pressure are 0.09MPa; Epoxy resin is put into the baking oven vacuum-drying 8h that 30 ℃, pressure are 0.09MPa;
(3) the waste and old ABS after step (2) is processed is evenly mixed and adds twin screw extruder with epoxy resin, extrusion temperature is 210 ℃, and rear cooling, drying-granulating is extruded in discharging, gets product.
Its results of property is in Table 1.
every part of embodiment 2(is 1kg)
The preparation method of described chain extension waste electrical equipment shell ABS plastic, the steps include:
(1) broken worn-out ABS, takes waste and old ABS 100 kg, epoxy resin 0.5 kg;
(2) waste and old ABS puts into the baking oven vacuum-drying 8h that 80 ℃, pressure are 0.09MPa; Epoxy resin is put into the baking oven vacuum-drying 8h that 30 ℃, pressure are 0.09MPa;
(3) the waste and old ABS after step (2) is processed is evenly mixed and adds twin screw extruder with epoxy resin, extrusion temperature is 230 ℃, and rear cooling, drying-granulating is extruded in discharging, gets product.
Its results of property is in Table 1.
every part of embodiment 3(is 1kg)
The preparation method of described chain extension waste electrical equipment shell ABS plastic, the steps include:
(1) broken worn-out ABS, takes waste and old ABS 100 kg, epoxy resin 0.9 kg;
(2) waste and old ABS puts into the baking oven vacuum-drying 8h that 80 ℃, pressure are 0.09MPa; Epoxy resin is put into the baking oven vacuum-drying 8h that 30 ℃, pressure are 0.09MPa;
(3) the waste and old ABS after step (2) is processed is evenly mixed and adds twin screw extruder with epoxy resin, extrusion temperature is 190 ℃, and rear cooling, drying-granulating is extruded in discharging, gets product.
Its results of property is in Table 1.
The end properties comparison that table 1 makes by the preparation method of each embodiment
Project Embodiment 1 Embodiment 2 Embodiment 3 Blank
Waste and old ABS 100 100 100 100
Epoxy resin 0.1 0.5 0.9 -
Notched Izod impact strength (kJ/m 2） 5.39 7.33 6.97 1.56
Tensile strength (MPa) 19.48 24.16 43.73 13.92
Flexural strength (MPa) 64.62 68.37 72.21 39.16
Modulus in flexure (MPa) 2459.95 2471.08 2550.18 1591.66

Claims (2)

1. chain extension waste electrical equipment shell ABS plastic, is characterized in that, it is to be made by the raw material of following weight part, 100 parts of waste and old ABS, 0.1～0.9 part of epoxy resin.
2. the preparation method of chain extension waste electrical equipment shell ABS plastic as claimed in claim 1, is characterized in that, the steps include:
(1) broken worn-out ABS, takes raw material by weight ratio;
(2) waste and old ABS puts into the baking oven vacuum-drying 8h that 80 ℃, pressure are 0.09MPa; Epoxy resin is put into the baking oven vacuum-drying 8h that 30 ℃, pressure are 0.09MPa;
(3) the waste and old ABS after step (2) is processed is evenly mixed and adds twin screw extruder with epoxy resin, extrusion temperature is 190～230 ℃, and rear cooling, drying-granulating is extruded in discharging, gets product.
CN201410168353.2A 2014-04-25 2014-04-25 Chain extension waste electrical equipment shell ABS plastic and preparation method thereof Expired - Fee Related CN103980652B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410168353.2A CN103980652B (en) 2014-04-25 2014-04-25 Chain extension waste electrical equipment shell ABS plastic and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410168353.2A CN103980652B (en) 2014-04-25 2014-04-25 Chain extension waste electrical equipment shell ABS plastic and preparation method thereof

Publications (2)

Publication Number Publication Date
CN103980652A true CN103980652A (en) 2014-08-13
CN103980652B CN103980652B (en) 2016-07-06

Family

ID=51272833

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410168353.2A Expired - Fee Related CN103980652B (en) 2014-04-25 2014-04-25 Chain extension waste electrical equipment shell ABS plastic and preparation method thereof

Country Status (1)

Country Link
CN (1) CN103980652B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104327446A (en) * 2014-11-26 2015-02-04 重庆可益荧新材料有限公司 Waste ABS/PP (acrylonitrile butadiene styrene/polypropylene) composite material and preparation method thereof
CN105348720A (en) * 2015-11-13 2016-02-24 安徽广源科技发展有限公司 Recoverable composite plastic used for electric appliance elements
CN111234447A (en) * 2020-03-18 2020-06-05 中北大学 Epoxidized elastomer modified waste ABS plastic and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06298991A (en) * 1993-04-16 1994-10-25 Sumitomo Chem Co Ltd Method for recovering recycling resin
CN101250315A (en) * 2008-03-18 2008-08-27 上海大学 Utilization and processing method for substrate material of waste and old printed circuit board
CN101977949A (en) * 2008-03-28 2011-02-16 巴斯夫公司 Polymeric compositions for plastic strapping

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06298991A (en) * 1993-04-16 1994-10-25 Sumitomo Chem Co Ltd Method for recovering recycling resin
CN101250315A (en) * 2008-03-18 2008-08-27 上海大学 Utilization and processing method for substrate material of waste and old printed circuit board
CN101977949A (en) * 2008-03-28 2011-02-16 巴斯夫公司 Polymeric compositions for plastic strapping

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104327446A (en) * 2014-11-26 2015-02-04 重庆可益荧新材料有限公司 Waste ABS/PP (acrylonitrile butadiene styrene/polypropylene) composite material and preparation method thereof
CN105348720A (en) * 2015-11-13 2016-02-24 安徽广源科技发展有限公司 Recoverable composite plastic used for electric appliance elements
CN111234447A (en) * 2020-03-18 2020-06-05 中北大学 Epoxidized elastomer modified waste ABS plastic and preparation method thereof

Also Published As

Publication number Publication date
CN103980652B (en) 2016-07-06

Similar Documents

Publication Publication Date Title
CN111073239A (en) High-temperature-resistant polylactic acid injection-molded porcelain-like tableware and preparation method thereof
CN104592667B (en) A kind of high flowing, high-impact ASA materials and preparation method thereof
CN109456563B (en) Special material for UHMWPE alloy compatibilization toughening modified polypropylene corrugated pipe and preparation method thereof
CN103980652A (en) Chain-extension waste and old electric appliance casing ABS plastic and preparation method thereof
CN105001638B (en) A kind of high strength polyphenylene sulfide based insulation material and production technology for manufacturing Medium voltage switch or circuit breaker pole
CN115011030A (en) Preparation method for preparing high-performance polypropylene modified material by utilizing reclaimed material
CN104479254A (en) Preparation process of electric ammeter shell material
CN109705506B (en) Flame-retardant HIPS material and preparation method thereof
CN104151712A (en) Low temperature impact toughness resistant PP-R (polypropylene random copolymer) tubular product material and preparation method thereof
CN106543625A (en) A kind of natural fibre reinforced polylactic acid composite material and preparation method thereof
CN114015236A (en) High-strength and high-wear-resistance carbon fiber reinforced polyphenylene sulfide composite material and preparation method thereof
CN107383744B (en) Polypropylene modified material for waste household appliances and preparation method thereof
CN112724514A (en) PP composite material suitable for extruded sheet plastic uptake and preparation method and application thereof
CN103665718B (en) Utilize the method for waste and old thermoplastic elastomer toughening high-impact polystyrene
CN103980647B (en) HIPS/ABS blending and modifying composite and preparation method thereof
CN103059564A (en) Nylon composite material, preparation method and application thereof
CN113292838B (en) Halogen-free low-warpage low-linear-expansion-coefficient extrusion-grade thin-wall flame-retardant polycarbonate composite material and preparation method thereof
CN102558814A (en) Modified polymeric carbon ester material for preparing capacitor housing
CN106496780A (en) Polypropylene material with high heat resistance and high mechanical property, preparation method and application thereof
CN107972224B (en) Low-voltage injection molding method for power capacitor shell
CN109320827B (en) Polyethylene resin suitable for preparing blow molding tray and preparation method and application thereof
CN104292829A (en) Polyamide resin alloy material for processing of lining housing of coffee maker
CN102532847B (en) Modified polycarbonate material for processing locomotive capacitor shell
CN109082065A (en) A kind of white anti-aging ABS modified material of porcelain and preparation method thereof
CN103483788A (en) Composite toughening modification method for polylactic acid based on crystallization control

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160706

Termination date: 20200425