CN108752879A - A kind of multiple-effect PBT modified plastics and preparation method - Google Patents
A kind of multiple-effect PBT modified plastics and preparation method Download PDFInfo
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- CN108752879A CN108752879A CN201810601862.8A CN201810601862A CN108752879A CN 108752879 A CN108752879 A CN 108752879A CN 201810601862 A CN201810601862 A CN 201810601862A CN 108752879 A CN108752879 A CN 108752879A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/382—Boron-containing compounds and nitrogen
- C08K2003/385—Binary compounds of nitrogen with boron
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
Abstract
The invention discloses a kind of multiple-effect PBT modified plastics and preparation methods, are modified plastics preparing technical field.The multiple-effect PBT modified plastics includes following parts by weight ingredient：58 parts of PBT, 18 parts of polytetrafluoroethylene (PTFE), 10 parts of glass microballoon master batch, 3 parts of alumina, 2 parts of antioxidant, 10 parts of heat filling, 2 parts of halogen-free flame retardants, 4 parts of alkali-free glass fibre, 4 parts of toughener of low temperature modification, 10 parts of acid glycidyl ester.Using PBT as carrier, hollow glass micropearl is added in preparation process, reduce density, dielectric constant and the electrical conductivity of PBT material, and use halogen-free flame retardants, the PBT material fire prevention degree and physical property of preparation are improved, and reach the high-performance environment-friendly modified PBT of the environmental requirement of non-halogen non-phosphate, meet industry utilization；And manufactured PBT tensile strengths, bending strength, impact strength are promoted.
Description
Technical field
The present invention relates to a kind of multiple-effect PBT modified plastics and preparation methods, specially modified plastics preparing technical field.
Background technology
Polybutylene terephthalate (PBT) (English name PolybutyleneTerephthalate, abbreviation PBT) is milky
It is translucent to arrive opaque, crystalline thermoplastic polyester.It is with excellent electrical property, high-fire resistance, toughness, fatigue durability, certainly
Lubrication, low-friction coefficient, weatherability, water absorption rate are low, various physical property (including electrical property) are still kept in wet environment, and be molded
Property is good, pretends and is widely used in automobile, electronic apparatus component for engineering plastics.With high molecular fire retardant Materials and answer
It is continuously improved with the continuous demand expanded with the mankind to living environment in field, there is multiple fire-retardant effectiveness (gas phase, cohesion phase resistance
Combustion), the research of novel green fire-retardant FRW and flame-retarded technology of efficient, low cigarette, low toxicity be increasingly subject to extensive concern.It is halogenated
Flame-retardant system will be utilized high-new flame-retarded technology and further be modified to adapt to modern environmental requirement, otherwise will be in the near future
It suffers from eliminating；And non-halogenated flame-retarding system Nano type fire retardant, expansion type flame retardant, phosphorus flame retardant, super fine magnesium hydroxide hinder
Exploitation and the application for firing agent, Inorganic Boron flame retardant, organic boron flame retardant and silicone flame retardant are fire-retardant as 2l centuries
The most active research field of agent.Therefore it needs to work out a kind of high-performance environment-friendly modified PBT for meeting industry and utilizing.
Invention content
The purpose of the present invention is to provide a kind of multiple-effect PBT modified plastics and preparation methods.
To achieve the above object, the present invention provides the following technical solutions：A kind of multiple-effect PBT modified plastics includes following weight
Part ingredient：55-60 parts of PBT, 15-20 parts of polytetrafluoroethylene (PTFE), 6-12 parts of glass microballoon master batch, 2-5 parts of alumina, antioxidant 2-3
Part, 2-5 parts of toughener of 8-12 parts of heat filling, 1-3 parts of halogen-free flame retardants, 2-6 parts of alkali-free glass fibre, low temperature modification, acid contracting
8-12 parts of water glyceride.
Further preferably, the multiple-effect PBT modified plastics includes following parts by weight ingredient：PBT58 parts, polytetrafluoroethylene (PTFE)
18 parts, 10 parts of glass microballoon master batch, 3 parts of alumina, 2 parts of antioxidant, 10 parts of heat filling, 2 parts of halogen-free flame retardants, alkali-free glass it is fine
4 parts of dimension, 4 parts of toughener of low temperature modification, 10 parts of acid glycidyl ester.
Preferably, the halogen-free flame retardants is phosphorous-nitrogen system bittern-free fire retardant.
Preferably, the low temperature modification toughener is styrene butadiene acrylate or E.I.Du Pont Company's rubber.
Preferably, the heat filling is one or two kinds of combinations of boron nitride or silicon carbide.
A kind of preparation method of multiple-effect PBT modified plastics：Step 1: it is dry, raw material is weighed first, in accordance with weight,
It weighs PBT to be put into drying machine, in 100 DEG C -120 DEG C dry 2-4h, it is spare to obtain dry PBT resin；
It is put into drying machine Step 2: weighing alkali-free glass fibre, dry 2-4h, obtains dry nothing at 95-100 DEG C
Alkali containing glass fibre is spare；
Step 3: mixing, by polytetrafluoroethylene (PTFE), glass microballoon master batch, alumina, antioxidant, heat filling, halogen-free flameproof
Agent, low temperature modification toughener, acid glycidyl ester sequentially add in high mixer, add the PBT resin and step of step 1 drying
The alkali-free glass fibre of rapid two drying mixes 25- under the conditions of rotating speed is 400-500 turns/min, temperature is 150 DEG C -170 DEG C
30min obtains mixture；
Step 4: molding：The mixture that step 3 obtains is put into melt blending in double screw extruder, melt blending
Rotating speed is that 200-300 turns/min, and the melt pressure of melt blending is 5MPa-10MPpa, and last blend composition is from double screw extruder
Outlet squeezes out, then successively through being cooled and shaped and cutting is prepared into modified PBT material.
Preferably, the machine barrel of double screw extruder is divided into the areas 1-6 in the step four, 1 area's temperature is 215 DEG C -225
DEG C, 2 area's temperature be 250 DEG C -235 DEG C, 3 area's temperature are 235 DEG C -245 DEG C, 4 area's temperature are 230 DEG C -235 DEG C, 5 area's temperature are
245 DEG C -255 DEG C, 6 area's temperature be 255 DEG C -265 DEG C.
Compared with prior art, beneficial effects of the present invention are as follows：Using PBT as carrier, it is added in preparation process hollow
Glass microballoon reduces density, dielectric constant and the electrical conductivity of PBT material, and uses halogen-free flame retardants, the PBT materials of preparation
Material fire prevention degree and physical property are improved, and reach the high-performance environment-friendly modified PBT of the environmental requirement of non-halogen non-phosphate, meet production
Industry utilizes；And manufactured PBT tensile strengths, bending strength, impact strength are promoted.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with the embodiment of the present invention, it is clear that retouched
The embodiment stated is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to the present invention
The range of protection.
Embodiment 1
A kind of preparation method of multiple-effect PBT modified plastics：Step 1: it is dry, raw material is weighed first, in accordance with weight,
It weighs 55 parts of PBT to be put into drying machine, in 100 DEG C of dry 2h, it is spare to obtain dry PBT resin；
It is put into drying machine Step 2: weighing 2 parts of alkali-free glass fibre, dry 2-4h, obtains dry nothing at 95 DEG C
Alkali containing glass fibre is spare；
Step 3: mixing, filling out 15 parts of polytetrafluoroethylene (PTFE), 6 parts of glass microballoon master batch, 2 parts of alumina, 2 parts of antioxidant, heat conduction
8 parts of material, 1 part of halogen-free flame retardants, 2 parts of toughener of low temperature modification, 8 parts of acid glycidyl ester sequentially add in high mixer, add
The PBT resin of step 1 drying and the alkali-free glass fibre of step 2 drying are rotating speed is 400 turns/min, temperature is 150 DEG C of items
25min is mixed under part, obtains mixture；
Step 4: molding：The mixture that step 3 obtains is put into melt blending in double screw extruder, melt blending
Rotating speed is 200 turns/min, and the melt pressure of melt blending is 5MPa, and last blend composition is exported from double screw extruder and squeezed out, so
Afterwards successively through being cooled and shaped and cutting is prepared into modified PBT material.
Preferably, the machine barrel of double screw extruder is divided into the areas 1-6 in the step four, 1 area's temperature is 215 DEG C -225
DEG C, 2 area's temperature be 250 DEG C -235 DEG C, 3 area's temperature are 235 DEG C -245 DEG C, 4 area's temperature are 230 DEG C -235 DEG C, 5 area's temperature are
245 DEG C -255 DEG C, 6 area's temperature be 255 DEG C -265 DEG C.
Embodiment 2
A kind of preparation method of multiple-effect PBT modified plastics：Step 1: it is dry, raw material is weighed first, in accordance with weight,
It weighs 60 parts of PBT to be put into drying machine, in 120 DEG C of dry 4h, it is spare to obtain dry PBT resin；
It is put into drying machine Step 2: weighing 6 parts of alkali-free glass fibre, dry 4h, obtains dry alkali-free at 100 DEG C
Glass fibre is spare；
Step 3: mixing, by 20 parts of polytetrafluoroethylene (PTFE), 12 parts of glass microballoon master batch, 5 parts of alumina, 3 parts of antioxidant, heat conduction
12 parts of filler, 3 parts of halogen-free flame retardants, 5 parts of toughener of low temperature modification, 12 parts of acid glycidyl ester sequentially add in high mixer, then
The alkali-free glass fibre of PBT resin and step 2 drying that step 1 drying is added is 500 turns/min, temperature 170 in rotating speed
25-30min is mixed under the conditions of DEG C, obtains mixture；
Step 4: molding：The mixture that step 3 obtains is put into melt blending in double screw extruder, melt blending
Rotating speed is 300 turns/min, and the melt pressure of melt blending is 10MPpa, and last blend composition is exported from double screw extruder and squeezed out,
Then successively through being cooled and shaped and cutting is prepared into modified PBT material.
Preferably, the machine barrel of double screw extruder is divided into the areas 1-6 in the step four, 1 area's temperature is 215 DEG C -225
DEG C, 2 area's temperature be 250 DEG C -235 DEG C, 3 area's temperature are 235 DEG C -245 DEG C, 4 area's temperature are 230 DEG C -235 DEG C, 5 area's temperature are
245 DEG C -255 DEG C, 6 area's temperature be 255 DEG C -265 DEG C.
Embodiment 1
A kind of preparation method of multiple-effect PBT modified plastics：Step 1: it is dry, raw material is weighed first, in accordance with weight,
It weighs 58 parts of PBT to be put into drying machine, in 110 DEG C of dry 3h, it is spare to obtain dry PBT resin；
It is put into drying machine Step 2: weighing 5 parts of alkali-free glass fibre, dry 3h, obtains dry alkali-free at 98 DEG C
Glass fibre is spare；
Step 3: mixing, by 18 parts of polytetrafluoroethylene (PTFE), 10 parts of glass microballoon master batch, 4 parts of alumina, 2.5 parts of antioxidant, lead
10 parts of hot filler, 2 parts of halogen-free flame retardants, 4 parts of toughener of low temperature modification, 10 parts of acid glycidyl ester sequentially add in high mixer,
The alkali-free glass fibre of the PBT resin and step 2 drying that add step 1 drying is that 450 turns/min, temperature are in rotating speed
28min is mixed under the conditions of 160 DEG C, obtains mixture；
Step 4: molding：The mixture that step 3 obtains is put into melt blending in double screw extruder, melt blending
Rotating speed is 250 turns/min, and the melt pressure of melt blending is 8MPpa, and last blend composition is exported from double screw extruder and squeezed out, so
Afterwards successively through being cooled and shaped and cutting is prepared into modified PBT material.
Preferably, the machine barrel of double screw extruder is divided into the areas 1-6 in the step four, 1 area's temperature is 215 DEG C -225
DEG C, 2 area's temperature be 250 DEG C -235 DEG C, 3 area's temperature are 235 DEG C -245 DEG C, 4 area's temperature are 230 DEG C -235 DEG C, 5 area's temperature are
245 DEG C -255 DEG C, 6 area's temperature be 255 DEG C -265 DEG C.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of multiple-effect PBT modified plastics, it is characterised in that：The PBT modified plastics includes following parts by weight ingredient：PBT
55-60 parts, 15-20 parts of polytetrafluoroethylene (PTFE), 6-12 parts of glass microballoon master batch, 2-5 parts of alumina, 2-3 parts of antioxidant, heat filling 8-
12 parts, 1-3 parts of halogen-free flame retardants, 2-6 parts of alkali-free glass fibre, low temperature modification 2-5 parts of toughener, acid glycidyl ester 8-12
Part.
2. a kind of multiple-effect PBT modified plastics according to claim 1, it is characterised in that：The multiple-effect PBT modified plastics
Including following parts by weight ingredient：58 parts of PBT, 18 parts of polytetrafluoroethylene (PTFE), 10 parts of glass microballoon master batch, 3 parts of alumina, antioxidant 2
Part, 4 parts of toughener of 10 parts of heat filling, 2 parts of halogen-free flame retardants, 4 parts of alkali-free glass fibre, low temperature modification, acid glycidyl ester
10 parts.
3. a kind of multiple-effect PBT modified plastics according to claim 1, it is characterised in that：The halogen-free flame retardants is phosphorus nitrogen
It is halogen-free flame retardants.
4. a kind of multiple-effect PBT modified plastics according to claim 1, it is characterised in that：The low temperature modifies toughener
For styrene butadiene acrylate or E.I.Du Pont Company's rubber.
5. a kind of multiple-effect PBT modified plastics according to claim 1, it is characterised in that：The heat filling is nitridation
One or two kinds of combinations of boron or silicon carbide.
6. a kind of preparation method of multiple-effect PBT modified plastics, it is characterised in that：Specifically preparation process is：
Step 1: it is dry, raw material is weighed first, in accordance with weight, PBT is weighed and is put into drying machine, at 100 DEG C -120 DEG C
Dry 2-4h, it is spare to obtain dry PBT resin；
It is put into drying machine Step 2: weighing alkali-free glass fibre, dry 2-4h, obtains dry alkali-free glass at 95-100 DEG C
Glass fiber is spare；
Step 3: mixing, by polytetrafluoroethylene (PTFE), glass microballoon master batch, alumina, antioxidant, heat filling, halogen-free flame retardants, low
Temperature modification toughener, acid glycidyl ester sequentially add in high mixer, and PBT resin and the step 2 for adding step 1 drying are dry
Dry alkali-free glass fibre mixes 25-30min under the conditions of rotating speed is 400-500 turns/min, temperature is 150 DEG C -170 DEG C, obtains
To mixture；
Step 4: molding：The mixture that step 3 obtains is put into melt blending in double screw extruder, the rotating speed of melt blending
Turn/min for 200-300, the melt pressure of melt blending is 5MPa-10MPpa, and last blend composition is exported from double screw extruder
It squeezes out, then successively through being cooled and shaped and cutting is prepared into modified PBT material.
7. a kind of preparation method of multiple-effect PBT modified plastics according to claim 6, it is characterised in that：The step
The machine barrel of double screw extruder is divided into the areas 1-6 in four, and 1 area's temperature is 215 DEG C -225 DEG C, 2 area's temperature are 250 DEG C -235 DEG C, 3rd area
Temperature is 235 DEG C -245 DEG C, 4 area's temperature are 230 DEG C -235 DEG C, 5 area's temperature are 245 DEG C -255 DEG C, 6 area's temperature be 255 DEG C -
265℃。
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| CN201810601862.8A CN108752879A (en) | 2018-06-12 | 2018-06-12 | A kind of multiple-effect PBT modified plastics and preparation method |
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| CN201810601862.8A CN108752879A (en) | 2018-06-12 | 2018-06-12 | A kind of multiple-effect PBT modified plastics and preparation method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110804282A (en) * | 2019-11-14 | 2020-02-18 | 福建华塑新材料有限公司 | Modified flat glass fiber reinforced PBT (polybutylene terephthalate) composite material and preparation method thereof |
| CN111138815A (en) * | 2019-12-27 | 2020-05-12 | 江苏沃特特种材料制造有限公司 | Low-dielectric-constant liquid crystal polymer and preparation method thereof |
| CN111393806A (en) * | 2020-03-10 | 2020-07-10 | 深圳市信维通信股份有限公司 | Liquid crystal polyester film and preparation method thereof |
| CN112646326A (en) * | 2019-10-12 | 2021-04-13 | 中国石油化工股份有限公司 | Preparation method of lightweight low-dielectric-constant PBT copolyester master batch and polyester film |
| KR20220026625A (en) * | 2020-08-25 | 2022-03-07 | 주식회사 삼양사 | Thermoplastic resin composition having good low-dielectric property and molded article comprising the same |
| CN115418086A (en) * | 2022-10-09 | 2022-12-02 | 大韩高性能材料(广东)有限公司 | Preparation method and equipment of novel ultralow dielectric resin material |
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| CN102504497A (en) * | 2011-09-28 | 2012-06-20 | 哈尔滨中大型材科技股份有限公司 | Modified PBT material and preparation method thereof |
| CN102786779A (en) * | 2011-05-16 | 2012-11-21 | 山东道恩高分子材料股份有限公司 | High-impact glass fiber reinforced halogen-free flame retardation PBT material |
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Patent Citations (2)
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| CN102786779A (en) * | 2011-05-16 | 2012-11-21 | 山东道恩高分子材料股份有限公司 | High-impact glass fiber reinforced halogen-free flame retardation PBT material |
| CN102504497A (en) * | 2011-09-28 | 2012-06-20 | 哈尔滨中大型材科技股份有限公司 | Modified PBT material and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112646326A (en) * | 2019-10-12 | 2021-04-13 | 中国石油化工股份有限公司 | Preparation method of lightweight low-dielectric-constant PBT copolyester master batch and polyester film |
| CN112646326B (en) * | 2019-10-12 | 2022-08-09 | 中国石油化工股份有限公司 | Preparation method of lightweight low-dielectric-constant PBT copolyester master batch and polyester film |
| CN110804282A (en) * | 2019-11-14 | 2020-02-18 | 福建华塑新材料有限公司 | Modified flat glass fiber reinforced PBT (polybutylene terephthalate) composite material and preparation method thereof |
| CN111138815A (en) * | 2019-12-27 | 2020-05-12 | 江苏沃特特种材料制造有限公司 | Low-dielectric-constant liquid crystal polymer and preparation method thereof |
| CN111393806A (en) * | 2020-03-10 | 2020-07-10 | 深圳市信维通信股份有限公司 | Liquid crystal polyester film and preparation method thereof |
| KR20220026625A (en) * | 2020-08-25 | 2022-03-07 | 주식회사 삼양사 | Thermoplastic resin composition having good low-dielectric property and molded article comprising the same |
| KR102428814B1 (en) * | 2020-08-25 | 2022-08-05 | 주식회사 삼양사 | Thermoplastic resin composition having good low-dielectric property and molded article comprising the same |
| CN115418086A (en) * | 2022-10-09 | 2022-12-02 | 大韩高性能材料(广东)有限公司 | Preparation method and equipment of novel ultralow dielectric resin material |
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Application publication date: 20181106 |