CN109135241A - A kind of PC/PBT plastic alloy and preparation method thereof that shock resistance mobility is strong - Google Patents
A kind of PC/PBT plastic alloy and preparation method thereof that shock resistance mobility is strong Download PDFInfo
- Publication number
- CN109135241A CN109135241A CN201810903063.6A CN201810903063A CN109135241A CN 109135241 A CN109135241 A CN 109135241A CN 201810903063 A CN201810903063 A CN 201810903063A CN 109135241 A CN109135241 A CN 109135241A
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- Prior art keywords
- pbt
- plastic alloy
- shock resistance
- strong
- mobility
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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
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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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
Abstract
The invention belongs to modified engineered plastic manufacture fields, relate to a kind of PC/PBT plastic alloy and preparation method thereof that shock resistance mobility is strong, by following material compositing formula in proportion: PC:30~70 part, PBT:30~50 part, compatible toughening agents are as follows: 3~7 parts, lubricant: 0.5~1 part, antioxidant: 0.1~0.4 part, release agent: 0.2~0.5 part.Wherein, one kind of compatible toughening agents KTR-6C, MBS, E/VAC, POE-g-MAH.The PC/PBT plastic alloy that formula provided by the present invention and production method obtain improves the mobility of PC, improves impact strength, and maintain tensile strength and heat resistance.The cheap many of PBT cost of material ratio PC, is reduced the production cost using PC/PBT alloy produced by the present invention, can operate with industrialized production.
Description
Technical field
The invention belongs to modified engineered plastic fields, and in particular to a kind of PC/PBT plastic alloy that shock resistance mobility is strong
And preparation method thereof.
Background technique
PC plastic has high tensile, high impact, high temperature resistant, the excellent transparency, has been widely used in automobile, machine
The fields such as tool, electronic apparatus, finishing, daily necessities；But its mobility is poor, produces to the processing of injection molding very big
It influences, especially when producing the product of big part, is also easy to produce and lacks the problems such as material is reduced with production efficiency, and then it is strong to influence impact
The decline of degree, product qualification rate reduce.PBT is semicrystalline polyester material, since it contains crystalline region, improves chemical resistance corrosion
Ability, and good fluidity, easy processing, but PBT rigidity itself is larger, notch impact strength is lower, dimensional stability is poor.
Since the PBT of part being added in PC, PBT molecule is inserted between PC molecule, keeps the entanglement power between PC molecule big
Big to reduce, the mobile comparison of PC molecule is free, to improve the mobility of PC；PC and PBT blend alloy can mutually more
The deficiency of the two is mended, and PC/PBT alloy has excellent processing fluidity, good shock resistance, chemical-resistant reagent is invaded
Erosion, but due to the characteristic of raw material, there are problems that poor compatibility when being blended.
Acrylate and the Bifunctionalized vinyl elastomer KTR-6C of methylene acid glycidyl ester, can benefits as compatilizer
Improve alloy material compatibility with the interaction between polar functional group.
Methyl Methacrylate-Butadiene-Styrene Copolymer MBS is " core-shell structure copolymer " structure compatible toughening agents, has knot
Structure is controllable, the good feature of toughening effect.
Ethylene/vinyl acetate E/VAC has good impact property, stress crack resistance performance and caking property
Can, it can be used for improving the compatibility of alloy material.
It is strong by introducing that ethylene-octene copolymer grafted maleic anhydride POE-g-MAH belongs to maleic anhydride graft compatilizer
Polar reaction group makes material have high polarity and reactivity, is a kind of polymer interface coupling agent, compatilizer, dispersion
Promotor.Inorganic filler and organic resin compatibility can be improved, improve stretching, the impact strength of product, high filling is realized, reduce
Amount of resin improves rheological performance, improves surface smoothness.
In the selection of compatible toughening agents, according to the characteristic of the above compatible toughening agents, it is contemplated that choose the above compatible toughening
Performance of the agent to improve PC/PBT plastic alloy.
Summary of the invention
The present invention provides a kind of PC/PBT plastic alloy and preparation method thereof that shock resistance mobility is strong, it is intended to solve PC modeling
Expect that poor fluidity, PBT impact strength be not high, when PC/PBT is blended the problem of poor compatibility.
In view of the above problems, the present invention provides a kind of PC/PBT plastic alloy that shock resistance mobility is strong, by
Following components forms by weight ratio: PC:30~70 part, PBT:30~50 part, compatilizer: 3~7 parts, lubricant: 0.5~
1 part, antioxidant: 0.1~0.4 part, release agent: 0.2~0.5 part.
PC and PBT only has the compatible of part, therefore compatilizer has important influence to the performance of blend alloy.Maleic anhydride
Compatilizer is grafted by introducing strongly polar reactive group, makes material that there is high polarity and reactivity, can greatly improve compound
The compatibility of material and the dispersibility of filler, to improve the mechanical strength of composite material.
The compatilizer that the present invention chooses be MBS, POE-g-MAH, E/VAC, one or more of combination.
Meanwhile the present invention provides a kind of preparation methods of PC/PBT plastic alloy that shock resistance mobility is strong, including step
It is rapid:
A. extruding granulator screw zones heating temperature value is first set；
B. various materials are weighed up by formula rate, vertical mixer mixing is added, incorporation time is 10 minutes；
C. pelletizer hopper is added in uniformly mixed material,；
D. start host and feeder, melting extrusion after pelletizer screw zones temperature value reaches standard；
E. water cooled material strip is squeezed out, tie rod, air-dries, obtain required PC/PBT plastic alloy after pelletizing.
Further, the pelletizer are as follows: corotating twin-screw pelletizer；The draw ratio of the screw rod are as follows: 40:1.
More preferably, in step a pelletizer each section of heating temperature value are as follows: 220~245 degree.
A kind of PC/PBT plastic alloy and preparation method thereof that shock resistance mobility is strong provided by the invention, comprising:
(1), the PBT of part is added in PC, the mobility of resulting PC/PBT alloy is strong；
(2) compatilizer selected enables PBT to be uniformly dispersed in PC, improves the compatibility of PC and PBT, from
And achieve the purpose that improve PC mobility；
(3) formula and preparation method gained PC/PBT improve impact strength according to the present invention, and maintain original PC
Tensile strength and heat resistance；
(4) the cheap many of PBT cost of material ratio PC can reduce production cost using PC/PBT alloy produced by the present invention,
Production technology originally is constant, can operate with industrialized production.
Specific embodiment
The present invention is further elaborated below by embodiment:
Embodiment 1:
Material is weighed according to mass fraction ratio: PC:70 parts, PBT:30 parts, KTR-6C:4 parts of compatilizer, lubricant:
0.5 part, antioxidant: 0.2 part, release agent: 0.3 part.Technique are as follows: material mixes 10 minutes, pelletizer each section heating temperature are as follows:
220~245 degree.
Embodiment 2:
Material is weighed according to mass fraction ratio: PC:70 parts, PBT:30 parts, MBS:5 parts of compatilizer, lubricant: 0.5 part,
Antioxidant: 0.2 part, release agent: 0.3 part.Technique are as follows: material mixes 10 minutes, pelletizer each section heating temperature are as follows: 220~
245 degree.
Embodiment 3:
Material is weighed according to mass fraction ratio: PC:70 parts, PBT:30 parts, E/VAC:5 parts of compatilizer, lubricant: 0.5
Part, antioxidant: 0.2 part, release agent: 0.3 part.Technique are as follows: material mixes 10 minutes, pelletizer each section heating temperature are as follows: 220
~245 degree.
Embodiment 4
Material is weighed according to mass fraction ratio: PC:70 parts, PBT:30 parts, POE-g-MAH:5 parts of compatilizer, lubrication
Agent: 0.5 part, antioxidant: 0.2 part, release agent: 0.3 part.Technique are as follows: material mixes 10 minutes, pelletizer each section heating temperature
Degree are as follows: 220~245 degree.
The performance of PC/PBT alloy resulting to above embodiments is tested, and impact strength, tensile strength and melting refer to
Number test result is as follows table:
Can be seen that PC/PBT alloy of the present invention by upper table has the advantages of impact strength is high, good fluidity, and protects
The tensile strength of former PC is held.
To sum up, the above is only that currently preferred several embodiments are not departing from those skilled in the art
Under the premise of the principle of the invention, the changes or modifications that all claims under this invention and specification are done all should belong to this hair
Within the scope of bright patent covers.
Claims (5)
1. a kind of PC/PBT plastic alloy that shock resistance mobility is strong, which is characterized in that by following components by weight ratio and
At: PC:30~70 part, PBT:30~50 part, compatible toughening agents: 3~7 parts, lubricant: 0.5~1 part, antioxidant: 0.1~0.4
Part, release agent: 0.2~0.5 part.
2. a kind of PC/PBT plastic alloy that shock resistance mobility is strong according to claim 1, which is characterized in that described compatible
Toughener is one kind of KTR-6C, MBS, E/VAC, POE-g-MAH.
3. a kind of preparation method for the PC/PBT plastic alloy that shock resistance mobility is strong, which is characterized in that comprising steps of
A. the temperature heat value of extruding granulator screw zones, heat temperature raising are set；
B. various materials are weighed up by formula rate, vertical mixer mixing is added, incorporation time is 10 minutes；
C., uniformly mixed material is added to the hopper of pelletizer；
D. machine screw zones temperature value to be extruded starts host and feeder, melting extrusion after reaching standard；
E. water cooled material strip is squeezed out, tie rod, air-dries, obtain required PC/PBT plastic alloy after pelletizing.
4. a kind of preparation method of PC/PBT plastic alloy that shock resistance mobility is strong according to claim 3, feature
It is, the pelletizer are as follows: corotating twin-screw extruding granulator；The draw ratio of the screw rod are as follows: 40:1.
5. a kind of preparation method of PC/PBT plastic alloy that shock resistance mobility is strong according to claim 3, feature
It is, each section of heating temperature value of pelletizer screw rod in the step a are as follows: 220~245 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810903063.6A CN109135241A (en) | 2018-08-09 | 2018-08-09 | A kind of PC/PBT plastic alloy and preparation method thereof that shock resistance mobility is strong |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810903063.6A CN109135241A (en) | 2018-08-09 | 2018-08-09 | A kind of PC/PBT plastic alloy and preparation method thereof that shock resistance mobility is strong |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073230A (en) * | 2019-12-27 | 2020-04-28 | 会通新材料股份有限公司 | Low-dielectric-constant PC/PBT alloy material and preparation method thereof |
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| CN1789333A (en) * | 2005-12-20 | 2006-06-21 | 苏州市凯米克新材料有限公司 | Environmental-friendly fire-retardant PC/PBT plastic alloy |
| CN1916076A (en) * | 2006-09-07 | 2007-02-21 | 浙江俊尔新材料有限公司 | Frigostabile PC/PBT plastic alloy |
| CN101759985A (en) * | 2008-12-23 | 2010-06-30 | 深圳市科聚新材料有限公司 | Transparent polycarbonate/polybutylece terephthalate alloy and preparation method thereof |
| CN102850746A (en) * | 2012-08-16 | 2013-01-02 | 深圳市科聚新材料有限公司 | Low-luster PC/PBT (polycarbonate/polybutylene terephthalate) alloy material and preparation method thereof |
| CN103772934A (en) * | 2012-10-22 | 2014-05-07 | 黑龙江鑫达企业集团有限公司 | High-impact high-heat-resistance PC/PBT alloy material and preparation technology thereof |
| CN105255149A (en) * | 2015-11-05 | 2016-01-20 | 陕西省石油化工研究设计院 | Low-temperature toughened and reinforced PC/PBT (polycarbonate/polybenzothiazole) alloy material and preparation method thereof |
-
2018
- 2018-08-09 CN CN201810903063.6A patent/CN109135241A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789333A (en) * | 2005-12-20 | 2006-06-21 | 苏州市凯米克新材料有限公司 | Environmental-friendly fire-retardant PC/PBT plastic alloy |
| CN1916076A (en) * | 2006-09-07 | 2007-02-21 | 浙江俊尔新材料有限公司 | Frigostabile PC/PBT plastic alloy |
| CN101759985A (en) * | 2008-12-23 | 2010-06-30 | 深圳市科聚新材料有限公司 | Transparent polycarbonate/polybutylece terephthalate alloy and preparation method thereof |
| CN102850746A (en) * | 2012-08-16 | 2013-01-02 | 深圳市科聚新材料有限公司 | Low-luster PC/PBT (polycarbonate/polybutylene terephthalate) alloy material and preparation method thereof |
| CN103772934A (en) * | 2012-10-22 | 2014-05-07 | 黑龙江鑫达企业集团有限公司 | High-impact high-heat-resistance PC/PBT alloy material and preparation technology thereof |
| CN105255149A (en) * | 2015-11-05 | 2016-01-20 | 陕西省石油化工研究设计院 | Low-temperature toughened and reinforced PC/PBT (polycarbonate/polybenzothiazole) alloy material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073230A (en) * | 2019-12-27 | 2020-04-28 | 会通新材料股份有限公司 | Low-dielectric-constant PC/PBT alloy material and preparation method thereof |
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Application publication date: 20190104 |