CN103756268A - Polyimide fiber enhanced PBT (Polybutylece Terephthalate) composite material and preparation method thereof - Google Patents
Polyimide fiber enhanced PBT (Polybutylece Terephthalate) composite material and preparation method thereof Download PDFInfo
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- CN103756268A CN103756268A CN201310746804.1A CN201310746804A CN103756268A CN 103756268 A CN103756268 A CN 103756268A CN 201310746804 A CN201310746804 A CN 201310746804A CN 103756268 A CN103756268 A CN 103756268A
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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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—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
- B29C2948/9258—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a polyimide fiber enhanced PBT (Polybutylece Terephthalate) composite material and a preparation method thereof. The polyimide fiber enhanced PBT composite material is composed of the following components in percentage by weight: 10%-60% of PBT, 1.0-30% of low-shrinkage fillers, 1.0-10% of a compatilizer, 1.0%-60% of polyimide fibers, 1.0%-10% of a toughening agent and 1.0-10% of other auxiliary agents. The low-shrinkage fillers are selected from one or more of ABS (Acrylonitrile Butadiene Styrene), AS (Acrylonitrile Styrene), PC (Polycarbonate) andmontmorillonoid and the like. According to the polyimide fiber enhanced PBT composite material, the low-temperature resisting performance of the composite material can be effectively improved; the warping rate of a product is improved and the product is halogen-free and flame-retarding and can be widely applied to automobile parts and electric equipment products.
Description
Technical field
The present invention relates to polymeric material field, relate in particular to a kind of polyimide fiber and strengthen PBT matrix material and preparation method thereof.
Technical background
PBT is a kind of crystalline thermoplastic polyester, and after moulding, the shrinking percentage of resulting product is large, and low-temperature flexibility is poor, adopts fibre-reinforced PBT matrix material, and due to the anisotropy of Fiber Distribution, warpage rate is high.Polyimide fiber is a kind of high-performance special fiber, tensile strength can with glass fibre, aramid fiber even carbon fiber match in excellence or beauty, its life-time service temperature is-200～300 ℃, has excellent electrical insulation capability and self-extinguishing simultaneously.The PBT matrix material that adopts polyimide fiber to strengthen, not only can make the tensile strength of goods, heat-drawn wire improve, and its impact property is also greatly improved simultaneously, especially obvious under low temperature.Because PBT and PI material itself just have good flame retardant properties, be aided with halogen-free flame retardants, just can meet ROHS standard; Under alkaline condition, bi-material also can be degraded, and can well reclaim raw material monomer.Therefore the PBT matrix material that, polyimide fiber strengthens is a kind of excellent environment-friendly materials.
Summary of the invention
The invention provides that a kind of resistance to low temperature is good, warpage rate is low, PBT matrix material and the preparation method of halogen-free environmental simultaneously.
For solving the technical problem of prior art, the technical solution used in the present invention is, the PBT matrix material that a kind of polyimide fiber strengthens is composed of the following components by weight percentage:
PBT：30～60%；
Low contraction filler: 10～20%;
Compatilizer: 1.0～10%;
Polyimide fiber: 30～60%;
Toughner: 0%～10%;
Other auxiliary agents: 0%～5%;
Described low contraction filler comprises that polymer carrier is if ABS, AS, PC, PET or mineral filler are as one or more of polynite.
Above-mentioned polyimide fiber strengthens PBT matrix material, and described polyimide fiber is self-produced PI fiber, take ODA and PMDA as raw material, by solution polycondensation, form, then through de-list, deaeration, wet-spinning, hot imide by changing processing, obtain PI fiber.Prepared PI tensile strength of fiber is 1.0～2.5GPa, and tensile modulus is 100～150GPa.
Described compatilizer is one or more of SMA of maleic anhydride grafted ABS, glycidyl methacrylate graft.
Described toughner be maleic anhydride stem grafting polyolefin elastomerics, maleic anhydride graft terpolymer EP rubber, glycidyl methacrylate graft POE and glycidyl methacrylate graft PEDM one or more, the percentage of grafting of maleic anhydride or glycidyl methacrylate is 1%～20%
Described fire retardant is halogen-free flame retardants, comprises one or more of phosphorus flame retardant, borate etc.
Described other auxiliary agents comprise oxidation inhibitor, lubricant, coupling agent.Oxidation inhibitor is one or more of suffocated amine antioxidant, Hinered phenols antioxidant and phosphite ester kind antioxidant; Lubricant is one or more of calcium stearate, Zinic stearas, illiteracy dawn ester type waxes; Coupling agent is one or more of silane coupling agent, titanate coupling agent.
Described PBT limiting viscosity is 0.8～1.0dl/g, and melt temperature is 225～240 ℃.
A kind of polyimide fiber strengthens PBT matrix material, specifically comprises the following steps:
(1) PBT, low contraction filler, compatilizer, toughner etc. are added to high speed mixer, splash into after dispersed oil, mix 5～10min.
(2), other auxiliary agents are added to high speed mixer, continue to mix 5～10min at high mixer with step (1) gained mixture, obtain blend material.
(3) add twin screw extruder to melt extrude blend material, temperature is 180～240 ℃, and twin screw length-to-diameter ratio is 36～56, and engine speed is 100～600rmp; At spout, add polyimide fiber simultaneously.
The present invention has following advantage:
1) effectively raise the low-temperature performance of PBT matrix material, reduced the warpage rate of goods;
2) halogen-free flameproof, protection of the environment;
3) the made PBT matrix material recovery of can degrading.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The embodiment of the present invention provides a kind of polyimide fiber to strengthen the preparation method of PBT matrix material, and each component is as follows by mass percentage:
PBT：10～60%；
Low contraction filler: 10～20%;
Compatilizer: 1.0～10%;
Polyimide fiber: 30～60%;
Toughner: 0%～10%;
Other auxiliary agents: 0%～5%;
Wherein, low contraction filler comprises that polymer carrier is if ABS, AS, PC, PET or mineral filler are as one or more of polynite; Described polyimide fiber is self-produced PI fiber, take ODA and PMDA as raw material, by solution polycondensation, form, then through de-list, deaeration, wet-spinning, hot imide by changing processing, obtain PI fiber.Prepared PI tensile strength of fiber is 1.0～2.5GPa, and modulus is 100～150GPa; Compatilizer is one or more of SMA of maleic anhydride grafted ABS, glycidyl methacrylate graft; Toughner is: maleic anhydride stem grafting polyolefin elastomerics, maleic anhydride graft terpolymer EP rubber, glycidyl methacrylate graft POE and glycidyl methacrylate graft PEDM one or more, the percentage of grafting of maleic anhydride or glycidyl methacrylate is 1%～20%; Fire retardant is halogen-free flame retardants, comprises one or more of phosphorus flame retardant, silicate etc.; Other auxiliary agents comprise oxidation inhibitor, lubricant and coupling agent etc.Oxidation inhibitor is one or more of Hinered phenols antioxidant, suffocated amine antioxidant and phosphite ester kind antioxidant; Lubricant is one or more of calcium stearate, Zinic stearas, illiteracy dawn ester type waxes, coupling agent be silane coupling agent, titanate coupling agent etc. one or more; PBT limiting viscosity is 0.8～1.0dl/g, and melt temperature is 225～240 ℃.
A kind of polyimide fiber strengthens PBT matrix material, specifically comprises the following steps:
(1) PBT, low contraction filler, compatilizer, toughner etc. are added to high speed mixer, splash into after dispersed oil, mix 5～10min;
(2), other auxiliary agents are added to high speed mixer, at high mixer, mix 5～10min with step (1) gained mixture, obtain blend material;
(3) add twin screw extruder to melt extrude blend material, temperature is 180～240 ℃, and twin screw length-to-diameter ratio is 36～56, and engine speed is 100～600rmp; At spout, add polyimide fiber simultaneously;
(4) cooling rear pelletizing screening;
(5) resulting materials obtains tensile strength, flexural strength, modulus in flexure, simply supported beam notched Izod impact strength according to standard GB/T1040, GB9341, GB/T1043 respectively, and fire-retardant rank obtains 3.2mm flame retardant properties according to UL94 standard.
Comparative example: pure PBT resin property
Embodiment 1:
By following mass ratio, take each component:
PBT：50%；
Low contraction filler: 19%, be respectively PC:5%, polynite: 14%; ,
Compatilizer is glycidyl methacrylate graft ABS:5%;
Polyimide fiber: 20%;
Toughner is maleic anhydride graft POE:5%;
Oxidation inhibitor 1098:0.2%;
Lubricant OP wax: 0.3%;
Coupling agent KH550:0.5%;
Through high speed mixer and Screw Extrusion granulation, 180 ℃ of expressing technique Wei Yi district temperature, two 190 ℃ of district's temperature, three 200 ℃ of district's temperature, four 210 ℃ of district's temperature, five 210 ℃ of district's temperature, six 200 ℃ of district's temperature, seven 180 ℃ of district's temperature, eight 180 ℃ of district's temperature, 240 ℃ of head temperatures, vacuum tightness 0.02Mpa, screw speed 460rpm.
Embodiment 2:
By following mass ratio, take each component:
PBT：40%；
Low contraction filler: 19%, respectively, AS:5%, polynite: 14%; ,
Compatilizer is glycidyl methacrylate graft ABS:5%
Polyimide fiber: 30%
Toughner is maleic anhydride graft POE:5%
Antioxidant 1076: 0.2%;
Lubricant: OP wax 0.3%;
Coupling agent KH560:0.5%
Preparation process, with embodiment 1, is not repeated in this description at this.
Embodiment 3:
By following mass ratio, take each component:
PBT：30%；
Low contraction filler is polynite: 19%;
Compatilizer is glycidyl methacrylate graft ABS:5%;
Polyimide fiber: 40%;
Toughner is maleic anhydride graft POE:5%;
Be respectively oxidation inhibitor 1098:0.2%;
Lubricant OP wax: 0.3%;
Coupling agent NDZ-311:0.5%;
Preparation process is identical with embodiment 1, is not repeated in this description.
Embodiment 4:
By following mass ratio, take each component:
PBT：30%；
Low contraction filler: 9%, be respectively ABS:4%, polynite: 5%; Compatilizer is maleic anhydride grafted ABS: 5%;
Polyimide fiber: 50%;
Toughner is maleic anhydride graft EPDM:5%;
Oxidation inhibitor 1098:0.2%;
Lubricant OP wax: 0.3%;
Coupling agent NDZ-201:0.5%;
Preparation process is identical with embodiment 1, is not repeated in this description.
Embodiment 5:
By following mass ratio, take each component:
PBT：20%；
Low contraction filler: 9%, be respectively PC:4%, polynite: 5%;
Compatilizer is glycidyl methacrylate graft ABS:5%;
Polyimide fiber: 60%;
Toughner is maleic anhydride graft POE:5%;
Oxidation inhibitor 1098:0.2%;
Lubricant OP wax: 0.3%;
Coupling agent KH550:0.5%;
Preparation process is identical with embodiment 1, is not repeated in this description.
The Performance Detection of above 5 embodiment is as shown in the table:
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention,
All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. polyimide fiber strengthens a PBT matrix material, it is characterized in that, by weight percentage, composed of the following components:
PBT：1%～80%；
Low contraction filler: 1%～20%,
Compatilizer: 1%～10%,
Polyimide fiber: 30～60%,
Toughner: 0%～10%,
Other auxiliary agents: 0%～5%.
Described low contraction filler is that polymer carrier is if ABS, AS, PC, PE or mineral filler are as one or more of polynite.
2. polyimide fiber according to claim 1 strengthens PBT matrix material, it is characterized in that, described polyimide fiber is self-produced PI fiber, take ODA and PMDA as raw material, by solution polycondensation, form, then through de-list, deaeration, wet-spinning, hot-imide processing, obtain PI fiber, prepared PI tensile strength of fiber 1.0～2.5GPa, tensile modulus 100～150GPa.
3. polyimide fiber according to claim 1 strengthens PBT matrix material, it is characterized in that, described compatilizer is KH550, one or more of the SMA of maleic anhydride grafted ABS, glycidyl methacrylate graft.
4. polyimide fiber according to claim 1 strengthens PBT matrix material, it is characterized in that, described toughner is: maleic anhydride stem grafting polyolefin elastomerics, maleic anhydride graft terpolymer EP rubber, glycidyl methacrylate graft POE and glycidyl methacrylate graft EPDM one or more, the percentage of grafting of maleic anhydride or glycidyl methacrylate is 1%～20%.
5. polyimide fiber according to claim 1 strengthens PBT matrix material, it is characterized in that, described fire retardant is halogen-free flame retardants, for phosphorous flame-retardant or boratory one or more.
6. polyimide fiber according to claim 1 strengthens PBT matrix material, it is characterized in that, described other auxiliary agents comprise oxidation inhibitor, lubricant, coupling agent etc.; Oxidation inhibitor is one or more of suffocated amine antioxidant, Hinered phenols antioxidant and phosphite ester kind antioxidant; Lubricant is one or more of calcium stearate, Zinic stearas, illiteracy dawn ester type waxes, and coupling agent is one or more of silane coupling agent, titanate coupling agent.
7. polyimide fiber according to claim 1 strengthens PBT matrix material, it is characterized in that, described PBT limiting viscosity is 0.8～1.0dl/g, and melt temperature is 225～240 ℃.
8. polyimide fiber according to claim 1 strengthens the preparation method of PBT matrix material, comprises the following steps:
(1), by the weight percent of claim 1, take starting material, PBT, low contraction filler, compatilizer, toughner etc. are added to high speed mixer, splash into after dispersed oil, mix 5～10min; (2), other auxiliary agents are added to high speed mixer, continue to mix 5～10min at high mixer with step (1) gained mixture, obtain blend material;
(3) add twin screw extruder to melt extrude blend material, temperature is 180～240 ℃, and twin screw length-to-diameter ratio is 36～56, and engine speed is 100～600rmp; At spout, add polyimide fiber simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310746804.1A CN103756268A (en) | 2013-12-30 | 2013-12-30 | Polyimide fiber enhanced PBT (Polybutylece Terephthalate) composite material and preparation method thereof |
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| CN201310746804.1A CN103756268A (en) | 2013-12-30 | 2013-12-30 | Polyimide fiber enhanced PBT (Polybutylece Terephthalate) composite material and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104231348A (en) * | 2014-10-09 | 2014-12-24 | 常熟万宝新材料科技有限公司 | Preparation method of high-damping composite material containing reinforced polyimide fiber |
| CN108727817A (en) * | 2018-05-21 | 2018-11-02 | 北京化工大学常州先进材料研究院 | A kind of polyimides chopped strand enhancing master batch and preparation method thereof |
| CN109337366A (en) * | 2018-09-28 | 2019-02-15 | 广州聚芳阁服饰有限公司 | A kind of flame retardant nano-materials and its preparation process for garment production |
| CN110283432A (en) * | 2019-05-09 | 2019-09-27 | 南通开普乐工程塑料有限公司 | A kind of low temperature resistant flame retardant enhancing PBT composite and preparation method thereof |
| CN114605785A (en) * | 2021-12-08 | 2022-06-10 | 上海聚威新材料股份有限公司 | High-wear-resistance and high-toughness PBT (polybutylene terephthalate) material for automobile stay cables and preparation method thereof |
| CN116135923A (en) * | 2023-02-28 | 2023-05-19 | 广东联塑科技实业有限公司 | A kind of polyvinyl chloride material and its preparation method and application |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617997A (en) * | 2012-03-30 | 2012-08-01 | 深圳市科聚新材料有限公司 | Glass fiber-reinforced PBT/PET (Polybutylece Terephthalate/Polyethyleneglycol Terephthalate) composite material and preparation method thereof |
-
2013
- 2013-12-30 CN CN201310746804.1A patent/CN103756268A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617997A (en) * | 2012-03-30 | 2012-08-01 | 深圳市科聚新材料有限公司 | Glass fiber-reinforced PBT/PET (Polybutylece Terephthalate/Polyethyleneglycol Terephthalate) composite material and preparation method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104231348A (en) * | 2014-10-09 | 2014-12-24 | 常熟万宝新材料科技有限公司 | Preparation method of high-damping composite material containing reinforced polyimide fiber |
| CN108727817A (en) * | 2018-05-21 | 2018-11-02 | 北京化工大学常州先进材料研究院 | A kind of polyimides chopped strand enhancing master batch and preparation method thereof |
| CN109337366A (en) * | 2018-09-28 | 2019-02-15 | 广州聚芳阁服饰有限公司 | A kind of flame retardant nano-materials and its preparation process for garment production |
| CN109337366B (en) * | 2018-09-28 | 2020-12-18 | 江阴市伊芙特制衣有限公司 | Nano flame-retardant material for clothing production and preparation process thereof |
| CN110283432A (en) * | 2019-05-09 | 2019-09-27 | 南通开普乐工程塑料有限公司 | A kind of low temperature resistant flame retardant enhancing PBT composite and preparation method thereof |
| CN114605785A (en) * | 2021-12-08 | 2022-06-10 | 上海聚威新材料股份有限公司 | High-wear-resistance and high-toughness PBT (polybutylene terephthalate) material for automobile stay cables and preparation method thereof |
| CN114605785B (en) * | 2021-12-08 | 2022-10-04 | 上海聚威新材料股份有限公司 | High-wear-resistance and high-toughness PBT (polybutylene terephthalate) material for automobile stay cables and preparation method thereof |
| CN116135923A (en) * | 2023-02-28 | 2023-05-19 | 广东联塑科技实业有限公司 | A kind of polyvinyl chloride material and its preparation method and application |
| CN116135923B (en) * | 2023-02-28 | 2023-11-28 | 广东联塑科技实业有限公司 | Polyvinyl chloride material and preparation method and application thereof |
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