CN106519592A - Engineering plastic with high surface and high performance and preparing method thereof - Google Patents
Engineering plastic with high surface and high performance and preparing method thereof Download PDFInfo
- Publication number
- CN106519592A CN106519592A CN201610669267.9A CN201610669267A CN106519592A CN 106519592 A CN106519592 A CN 106519592A CN 201610669267 A CN201610669267 A CN 201610669267A CN 106519592 A CN106519592 A CN 106519592A
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- high performance
- engineering plastics
- high surface
- performance engineering
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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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/24—Crystallisation aids
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to an engineering plastic with high surface and high performance and preparing method thereof. The composite material comprises 30%-70% of PBT (polybutylece terephthalate) resin, 5%-15% of PETG (polyethylene terephthalate glycol), 5%-10% of LCP (liquid crystal polymer), 20%-50% of alkali-free glass fiber, 1%-5% of flexibilizer, 0.1%-1% of antioxidant, 0.1%-1% of UV (ultraviolet), 0.1%-1% of lubricant, 0.1%-1% of a coupling reagent, and 1%-3% of carbon black master batches. By adding PETG (polybutylece terephthalate), the surface of the prepared material is enabled to be smooth and free of floating fibers. By adding a liquid crystal polymer, the degree of crystallinity and the heat distortion temperature of the material are increased. The preparing method comprises the steps of after putting PBT (polybutylece terephthalate), PETG (polyethylene terephthalate glycol), LCP (liquid crystal polymer) and auxiliaries according to a certain proportion into a high mixing machine to mix for 2-5 min, firstly pouring the mixture into a main feeding opening of a twin-screw extruder, then making a glass fiber enter the twin-screw extruder from a glass fiber opening or a side feeding opening, extruding the glass fiber by the twin-screw for bar stretching, and finally carrying out water cooling, air drying and grain-sized dicing, wherein the temperature in the granulation process should be controlled at 180-240 DEG C, and the screw rotation speed should be controlled at 300-400 RPM. The engineering plastic with high surface and high performance has the advantages of being good in mechanical properties, smooth in surface, free of floating fiber, resistant to heat and weather and the like, and is applicable to the fields of automobile parts and, mechanical parts and the like.
Description
Technical field
The present invention relates to polyester material field, more particularly, to a kind of high surface high performance engineering plastics and its preparation side
Method.
Background technology
It is poly- stupid dioctyl phthalate butanediol ester (PBT) is had excellent mechanical performance, fatigue strength, excellent electric property and
Dimensional stability, relatively low water absorption rate, which has been widely used in the fields such as automobile, mechanical industry, electronic apparatus, precision instrument.
But some product requirement performances are high, content of glass fiber is high and product is big, complex structure, surface requirements it is very high when, it appears
It is unable to do what one wishes.Market has some materials to make article surface qualified by improving mobility, but while sacrifices the mechanical property of material
Can, especially toughness can be low.
The content of the invention
For solving the above problems, the present invention proposes a kind of high surface high performance engineering plastics and preparation method thereof.
The technical solution adopted in the present invention is：A kind of high surface high performance engineering plastics, which is by following percentage by weight
Raw material make：PBT resin 30%-70%；PETG5%-15%；LCP5%-15%；Toughener 1%-5%；Glass fibre
20%-50%；Antioxidant 0.1%-1%；UV absorbent 0.1%-1%；Lubricant 0.1%-1%；Coupling agent 0.1%-
1%；Black masterbatch 1%-3%.
Further, the relative viscosity of the PBT resin is 0.7-1.0.
Further, the PETG resins replace part in PET resin for a kind of with 1,4- cyclohexanedimethanols (CHDM)
Ethylene glycol, carries out the polyester that modification by copolymerization is obtained, and is a kind of armorphous copolyester.
Further, described LCP is Liquid crystalline copolyester polymer.
Further, described compatilizer is ethylene-acrylate-glycidyl acrylate terpolymer.
Further, alkali-free glass fibre of the described glass fibre for diameter 6um-17um.
Further, described lubricant is silicon-acrylic resin copolymer.
Further, described coupling agent is silane coupler.
The invention further relates to the preparation method of a kind of high surface high performance engineering plastics described above, its mistake for preparing
Journey be PBT, PETG, LCP and each auxiliary agent are put into into high mixer mixing 2-5 minutes in constant weight ratio first after pour twin screw into
Extruder main spout, then glass fibre is entered into double screw extruder, Jing twin-screw extrusions from glass fiber opening or side spout
Last water cooled, the air-dried, pelletizing of tie rod, the temperature in its whole granulation process should be controlled at 180-240 DEG C, and screw speed is controlled
In 300-400RPM.
Compared with prior art, which has the advantages that the present invention：
1st, by adding copolyester PETG, which is armorphous material, slow down the crystalline rate of PBT.Other PETG's
Fusing point is relatively low, and relatively low melt viscosity being capable of more preferable sized glass fibres in process.It is final obtained multiple
Condensation material surface gloss is high, fine without floating.
2nd, the materials hot deformation temperature reduced as PETG is added can be offset by adding polyester type liquid crystal polymer,
LCP can get certain compatilizer effect and nucleator effect simultaneously.
3rd, it is used as lubricant by adding silicon-acrylic copolymer, adding for each filler in mixture can be greatly improved
Work mobility, reduces coefficient of friction, improves dispersion effect and later stage material injection processing characteristics.
4th, the weather resistance of material is improve by adding antioxidant and UV absorbent, can meet the open air of product
Use requirement.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with embodiment, to this
It is bright to be further elaborated, it should be appreciated that specific embodiment described herein only to explain the present invention, and
It is not used in the restriction present invention.
Embodiment 1
Using the raw material of following weight proportion：
The good raw material of above-mentioned weight proportion is added separately to be sufficiently mixed in high mixer after 4 minutes and is discharged, then will
The material for mixing is inserted in extruder by the main feed mouth of double screw extruder, and glass fibre is added by side feeding machine.Finally
Water cooled, air-dried, pelletize, so as to composite is obtained, its temperature in whole granulation process should be controlled at 180～230 DEG C,
Screw speed is controlled in 360RPM.
Embodiment 2
Using the raw material of following weight proportion：
The good raw material of above-mentioned weight proportion is added separately to be sufficiently mixed in high mixer after 4 minutes and is discharged, then will
The material for mixing is inserted in extruder by the main feed mouth of double screw extruder, and glass fibre is added by side feeding machine.Finally
Water cooled, air-dried, pelletize, so as to composite is obtained, its temperature in whole granulation process should be controlled at 180～230 DEG C,
Screw speed is controlled in 360RPM.
Embodiment 3
Using the raw material of following weight proportion：
The good raw material of above-mentioned weight proportion is added separately to be sufficiently mixed in high mixer after 4 minutes and is discharged, then will
The material for mixing is inserted in extruder by the main feed mouth of double screw extruder, and glass fibre is added by side feeding machine.Finally
Water cooled, air-dried, pelletize, so as to composite is obtained, its temperature in whole granulation process should be controlled at 180～230 DEG C,
Screw speed is controlled in 360RPM.
Comparative example 1
Using the raw material of following weight proportion：
The good raw material of above-mentioned weight proportion is added separately to be sufficiently mixed in high mixer after 4 minutes and is discharged, then will
The material for mixing is inserted in extruder by the main feed mouth of double screw extruder, and glass fibre is added by side feeding machine.Finally
Water cooled, air-dried, pelletize, so as to composite is obtained, its temperature in whole granulation process should be controlled at 180～230 DEG C,
Screw speed is controlled in 360RPM.
Comparative example 2
Using the raw material of following weight proportion：
The good raw material of above-mentioned weight proportion is added separately to be sufficiently mixed in high mixer after 4 minutes and is discharged, then will
The material for mixing is inserted in extruder by the main feed mouth of double screw extruder, and glass fibre is added by side feeding machine.Finally
Water cooled, air-dried, pelletize, so as to composite is obtained, its temperature in whole granulation process should be controlled at 180～230 DEG C,
Screw speed is controlled in 360RPM.
Embodiment 1 to embodiment 3 and comparative example 1 obtained into comparative example 2 each composite is surveyed by standard respectively
It is fixed.
Correlated performance such as table 1
Wherein, tensile strength presses 527 standard tests of ISO, and bending strength presses 178 standard tests of ISO, notch impact strength
3521 standard tests of ISO are pressed in ISO 179-1 standard tests, shrinkage factor, and heat distortion temperature presses IS075 standard testings, article surface
Situation is molded after an automobile air flow meter shell product by client and is judged.
Embodiment described above is only that the preferred embodiment of the present invention is described, not the structure to the present invention
Think and scope is defined.On the premise of without departing from design concept of the present invention, technology of this area ordinary person to the present invention
Various modifications and improvement that scheme is made, all should drop into protection scope of the present invention, in the technology that the present invention is claimed
Hold, all recorded in detail in the claims.
Claims (9)
1. a kind of high surface high performance engineering plastics, which is made up of the raw material of following percentage by weight：PBT resin 30%-70%；
PETG5%-15%；LCP5%-15%；Toughener 1%-5%；Glass fibre 20%-50%；Antioxidant 0.1%-1%；It is ultraviolet
Light absorbers 0.1%-1%；Lubricant 0.1%-1%；Coupling agent 0.1%-1%；Black masterbatch 1%-3%.
2. high surface high performance engineering plastics according to claim 1, it is characterised in that：The PBT resin is glued relatively
Spend for 0.7-1.0.
3. high surface high performance engineering plastics according to claim 1, it is characterised in that：The PETG resins for it is a kind of with
1st, 4- cyclohexanedimethanols (CHDM) replace part ethylene glycol in PET resin, carry out the polyester that modification by copolymerization is obtained, and are a kind of non-
Crystal formation copolyesters.
4. high surface high performance engineering plastics according to claim 1, it is characterised in that：Described LCP is copolyesters liquid
Crystalline polymer.
5. high surface high performance engineering plastics according to claim 1, it is characterised in that：Described compatilizer be ethylene-
Acrylate-Acrylic ethylene oxidic ester terpolymer.
6. high surface high performance engineering plastics according to claim 1, it is characterised in that：Described glass fibre is diameter
The alkali-free glass fibre of 6um-17um.
7. high surface high performance engineering plastics according to claim 1, it is characterised in that：Described lubricant is silicon-the third
Olefin(e) acid resin copolymer.
8. high surface high performance engineering plastics according to claim 1, it is characterised in that：Described coupling agent is silane idol
Connection agent.
9. a kind of preparation method of the high surface high performance engineering plastics as described in claim 1-8, it is characterised in that：Its preparation
Process be PBT, PETG, LCP and each auxiliary agent are put into into high mixer mixing 2-5 minutes in constant weight ratio first after pour into it is double
Screw Extrusion owner's spout, then glass fibre is entered into double screw extruder, Jing twin screw from glass fiber opening or side spout
Last water cooled, the air-dried, pelletizing of extrusion tie rod, the temperature in its whole granulation process should be controlled at 180-240 DEG C, screw speed
Control is in 300-400RPM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610669267.9A CN106519592A (en) | 2016-08-15 | 2016-08-15 | Engineering plastic with high surface and high performance and preparing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610669267.9A CN106519592A (en) | 2016-08-15 | 2016-08-15 | Engineering plastic with high surface and high performance and preparing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN106519592A true CN106519592A (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610669267.9A Pending CN106519592A (en) | 2016-08-15 | 2016-08-15 | Engineering plastic with high surface and high performance and preparing method thereof |
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| Country | Link |
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| CN (1) | CN106519592A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107383797A (en) * | 2017-07-18 | 2017-11-24 | 上海日之升科技有限公司 | A kind of high-rigidity and low-warpage polyester composite and preparation method thereof |
| CN109337386A (en) * | 2018-10-23 | 2019-02-15 | 新钻塑料科技（上海）有限公司 | A kind of super dry and comfortable thermoplastic elastomer composite material and preparation method thereof of the super dumb light in surface |
| CN110041667A (en) * | 2019-03-29 | 2019-07-23 | 苏州威瑞成新材料有限公司 | Heat-resisting highly crystalline enhancing PBT/LCP alloy material of one kind and preparation method thereof |
| CN111995844A (en) * | 2020-09-07 | 2020-11-27 | 黎明职业大学 | Heat-conducting and insulating PBT/PETG composite material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1990544A (en) * | 2005-12-28 | 2007-07-04 | 上海日之升新技术发展有限公司 | High heat-proof reinforced polybutylene terephthalate composition |
| CN104693697A (en) * | 2013-12-05 | 2015-06-10 | 上海杰事杰新材料(集团)股份有限公司 | High-strength flame-retardant PBT/LCP composite material and preparation method thereof |
-
2016
- 2016-08-15 CN CN201610669267.9A patent/CN106519592A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1990544A (en) * | 2005-12-28 | 2007-07-04 | 上海日之升新技术发展有限公司 | High heat-proof reinforced polybutylene terephthalate composition |
| CN104693697A (en) * | 2013-12-05 | 2015-06-10 | 上海杰事杰新材料(集团)股份有限公司 | High-strength flame-retardant PBT/LCP composite material and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107383797A (en) * | 2017-07-18 | 2017-11-24 | 上海日之升科技有限公司 | A kind of high-rigidity and low-warpage polyester composite and preparation method thereof |
| CN109337386A (en) * | 2018-10-23 | 2019-02-15 | 新钻塑料科技（上海）有限公司 | A kind of super dry and comfortable thermoplastic elastomer composite material and preparation method thereof of the super dumb light in surface |
| CN110041667A (en) * | 2019-03-29 | 2019-07-23 | 苏州威瑞成新材料有限公司 | Heat-resisting highly crystalline enhancing PBT/LCP alloy material of one kind and preparation method thereof |
| CN111995844A (en) * | 2020-09-07 | 2020-11-27 | 黎明职业大学 | Heat-conducting and insulating PBT/PETG composite material and preparation method thereof |
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Application publication date: 20170322 |