CN106349659A - High-efficiency heat-resistant PBT-PP alloy and preparation method thereof - Google Patents
High-efficiency heat-resistant PBT-PP alloy and preparation method thereof Download PDFInfo
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- CN106349659A CN106349659A CN201610718256.5A CN201610718256A CN106349659A CN 106349659 A CN106349659 A CN 106349659A CN 201610718256 A CN201610718256 A CN 201610718256A CN 106349659 A CN106349659 A CN 106349659A
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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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2205/03—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
Abstract
The invention relates to a high-efficiency heat-resistant PBT-PP alloy and a preparation method thereof. The high-efficiency heat-resistant PBT-PP alloy is prepared from the following components in parts by weight: 75 to 90 parts of PBT, 45 to 60 parts of PP, 40 to 50 parts of glass fibers, 10 to 15 parts of compatilizers, 20 to 35 parts of polyetherimide, 5 to 10 parts of surface brightening agents, 1.5 to 2 parts of lubricating agents, and 10 to 15 parts of 2,6-tert-butyl-4-methylphenol. According to the technical scheme, by virtue of reasonable proportions and reasonable combination of various components, not only can the high heat resistance, high mechanical performance, chemical reagent resistance, weather resistance, excellent electrical performance and low water absorption rate be realized, but also the aging resistance is relatively high, the size stability is good, the machinability is remarkable, the warping degree is high, and the surface glossness is high; and moreover, a preparation process is simple, and the cost is low.
Description
Technical field
The invention belongs to new forms of energy and environmental protection and energy saving technical field, more particularly, to a kind of efficient heat-resisting pbt-pp alloy and its
Preparation method.
Background technology
Pbt (polybutylene terephthalate (PBT)) is a kind of thermoplastic engineering plastic of hemicrystalline, and it has high resistance to
Hot, high mechanical property, chemical reagent resistance, weatherability, excellent electrical property and water absorption rate are low.After enhancing modified
Pbt, its mechanical performance is more excellent, is widely used in the electric, field such as automobile, plant equipment.But due to pbt
Molecule chain rigidity is larger, and, to notch sensitive, notch shock is low for it.Pp (polypropylene) be the maximum general-purpose plastics of current consumption it
One, belong to a kind of those semi-crystalline materials, there is light weight, good electrical insulating property, chemical resistance, fatigue durability, thermostability, excellent
Good mechanical property and moulding processability, and price is minimum in general-purpose plastics, thus it is widely used in commercial production
Every field.But pp there is also some shortcomings, black brittleness is big, and resistance to ag(e)ing is bad and dimensional stability is poor.
Do not have a kind of material in existing market and can either meet high thermostability, high mechanical property, chemically-resistant examination
Agent, weatherability, excellent electrical property and water absorption rate are low and can have higher resistance to ag(e)ing, dimensional stability and processability
Energy.
Content of the invention
In view of the problems of prior art, a kind of present invention height with different mechanical property and smooth surface of offer
Efficient heat-resisting pbt-pp alloy of the low warpage of gloss and preparation method thereof.
The technical scheme is that the invention provides a kind of efficient heat-resisting pbt-pp closes
Gold, pbt75～90 weight portion, pp45～60 weight portion, glass fibre 40～50 weight portion, compatilizer 10～15 weight portion, gathers
Etherimide 20～35 weight portion, finishing agent 5～10 weight portion, lubricant 1.5～2 weight portion, 2,6- three-level butyl -4-
Methylphenol 10～15 weight portion.
The invention has the beneficial effects as follows: inventor's early stage has carried out substantial amounts of component and the screening experiment of consumption, unexpected
Discovery, technical scheme can either meet high thermostability, height by the combination of rational proportioning and each component
Mechanical property, chemical reagent resistance, weatherability, excellent electrical property and water absorption rate low and can have higher resistance to ag(e)ing,
Dimensional stability and the significant angularity of processing characteristics and surface smoothness, also have higher surface gloss and warpage simultaneously
Degree, and its preparation process is simple, low cost.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described pbt is 75 weight portions, and described pp is 45 weight portions, and described glass fibre is 40 weight portions, institute
Stating compatilizer is 10 weight portions, and described Polyetherimide is 20 weight portions, and described finishing agent is 5 weight portions, described lubrication
Agent is 1.5 weight portions, and described 2,6- three-level butyl -4- methylphenol is 10 weight portions.
Further, described pbt intrinsic viscosity is 0.8-1.3dl/g.
Further, described compatilizer is eva and/or eva-g-mah.
Further, described finishing agent is linear low density polyethylene (LLDPE).
Beneficial effect using such scheme is: can be preferably as finishing agent using linear low density polyethylene (LLDPE)
Improve the surface brightness of efficient heat-resisting pbt-pp alloy, and its cost performance is higher.
The present invention also provides a kind of preparation method of above-mentioned efficient heat-resisting pbt-pp alloy, and the method adopts following steps:
(1) pbt75～90 weight portion, pp45～60 weight portion, glass fibre 40～50 weight portion, compatilizer 10～15 weight are weighed
Part, Polyetherimide 20～35 weight portion, finishing agent 5～10 weight portion, lubricant 1.5～2 weight portion, 2,6- three-level fourths
Base -4- methylphenol 10～15 weight portion, and each component is positioned in high-speed mixer, mix homogeneously at ambient temperature；
(2) mixture produced in step (1) is sent in double screw extruder, control extrusion temperature to be 190-230 DEG C, screw speed
For 200-500 rev/min, extruder the 4th humidity province add glass fibre 40～50 weight portion, through melt blending extrude,
Tie rod, obtains fiberglass reinforced pbt/pp alloy after water cooled, dry, pelletizing.
Beneficial effect using such scheme is: the efficient heat-resisting pbt-pp alloy using said method preparation disclosure satisfy that
High thermostability, high mechanical property, chemical reagent resistance, weatherability, excellent electrical property and water absorption rate are low and can have relatively
High resistance to ag(e)ing, dimensional stability and the significant angularity of processing characteristics and surface smoothness, also have higher table simultaneously
Face glossiness and angularity, and its preparation process is simple, manufacturing cost is lower, and production efficiency is higher, disclosure satisfy that high-volume
The demand producing.
Specific embodiment
Hereinafter the principle and feature of the present invention is described, example is served only for explaining the present invention, is not intended to limit
Determine the scope of the present invention.
The invention provides a kind of efficient heat-resisting pbt-pp alloy, pbt75～90 weight portion, pp45～60 weight portion, glass
Glass fiber 40～50 weight portion, compatilizer 10～15 weight portion, Polyetherimide 20～35 weight portion, finishing agent 5～10
Weight portion, lubricant 1.5～2 weight portion, 2,6- three-level butyl -4- methylphenol 10～15 weight portion.
The invention has the beneficial effects as follows: inventor's early stage has carried out substantial amounts of component and the screening experiment of consumption, unexpected
Discovery, technical scheme can either meet high thermostability, height by the combination of rational proportioning and each component
Mechanical property, chemical reagent resistance, weatherability, excellent electrical property and water absorption rate low and can have higher resistance to ag(e)ing,
Dimensional stability and the significant angularity of processing characteristics and surface smoothness, also have higher surface gloss and warpage simultaneously
Degree, and its preparation process is simple, low cost.
To be introduced below by specific embodiment.
Embodiment 1
A kind of efficient heat-resisting pbt-pp alloy, including following weight portion: described pbt is 75 weight portions, described pp is 45 weights
Amount part, described glass fibre is 40 weight portions, and described compatilizer is 10 weight portions, and described Polyetherimide is 20 weight portions, institute
Stating finishing agent is 5 weight portions, and described lubricant is 1.5 weight portions, and described 2,6- three-level butyl -4- methylphenol is 10 weights
Amount part.
Embodiment 2
A kind of efficient heat-resisting pbt-pp alloy, including following weight portion: described pbt is 80 weight portions, described pp is 50 weights
Amount part, described glass fibre is 45 weight portions, and described compatilizer is 13 weight portions, and described Polyetherimide is 25 weight portions, institute
Stating finishing agent is 8 weight portions, and described lubricant is 1.8 weight portions, and described 2,6- three-level butyl -4- methylphenol is 12 weights
Amount part.
Embodiment 3
A kind of efficient heat-resisting pbt-pp alloy, including following weight portion: described pbt is 90 weight portions, described pp is 60 weights
Amount part, described glass fibre is 50 weight portions, and described compatilizer is 15 weight portions, and described Polyetherimide is 35 weight portions, institute
Stating finishing agent is 10 weight portions, and described lubricant is 2 weight portions, and described 2,6- three-level butyl -4- methylphenol is 15 weights
Amount part.Wherein, described pbt intrinsic viscosity is 0.8-1.3dl/g, and described compatilizer is eva and/or eva-g-mah, passes through
The pbt of above-mentioned content and compatilizer can preferably increase the mechanical property of whole efficient heat-resisting pbt-pp alloy, simultaneously described
Finishing agent is linear low density polyethylene (LLDPE), and polyethylene plus individual more cheap, cost performance is higher, can reduce and be manufactured into
This, simultaneously its to heighten effect for efficient heat-resisting pbt-pp alloy surface brightness more significantly.
Comparative example 1
Described Polyetherimide replaces with propylene-glycol ethyl ether, and described propylene-glycol ethyl ether be 30 weight portions remaining all with enforcement
Example 1 is identical.
Comparative example 2
Compared with comparative example 1, do not have in comparative example two interpolation 2,6- three-level butyl -4- methylphenol and finishing agent its
Yu Jun is same as Example 1.
Comparative example 3
The weight portions such as described Polyetherimide are replaced with polyvinyl butyral resin, remaining is all same as Example 1.
Measure of merit
Measure respectively above-described embodiment and comparative example preparation efficient heat-resisting pbt-pp alloy be added in culturing pool to
The clean-up effect of water quality in pond, and respectively cod clearance and heavy metal copper ion concentration are measured.
The test condition of described tensile strength (mpa) is 50mm/min, and the test condition of described bending strength (mpa) is
2mm/min, the test condition of described notch impact strength and shrinkage factor is carried out at being 23 DEG C, and the test condition of described glossiness is
60 ° of angles.
Test result is as shown in table 1.
Table 1
Can be seen that compared with comparative example 1-3 according to the data in table 1, the pbt/pp alloy of present invention preparation has height
The low characteristic of gloss, warpage.The mechanical property of material increased, and material remains low warpage properties, and lustrous surface also has
Improved, the glossiness of material significantly improves；The present invention provides the glossiness highest of material, and warpage is minimum.Obtained by the present invention
High glaze, low warp glass fiber strengthen efficient heat-resisting pbt-pp alloy material and can be widely applied to the industries such as automobile, household electrical appliances, special
It is not applied to and there is the product that high gloss and low warpage require.
The present invention also provides a kind of preparation method of above-mentioned efficient heat-resisting pbt-pp alloy, and the method adopts following steps:
(1) pbt75～90 weight portion, pp45～60 weight portion, glass fibre 40～50 weight portion, compatilizer 10～15 weight are weighed
Part, Polyetherimide 20～35 weight portion, finishing agent 5～10 weight portion, lubricant 1.5～2 weight portion, 2,6- three-level fourths
Base -4- methylphenol 10～15 weight portion, and each component is positioned in high-speed mixer, mix homogeneously at ambient temperature；
(2) mixture produced in step (1) is sent in double screw extruder, control extrusion temperature to be 190-230 DEG C, screw speed
For 200-500 rev/min, extruder the 4th humidity province add glass fibre 40～50 weight portion, through melt blending extrude,
Tie rod, obtains fiberglass reinforced pbt/pp alloy after water cooled, dry, pelletizing.
Using said method preparation efficient heat-resisting pbt-pp alloy disclosure satisfy that high thermostability, high mechanical property,
Chemical reagent resistance, weatherability, excellent electrical property and water absorption rate low and can have higher resistance to ag(e)ing, dimensional stability and
The significant angularity of processing characteristics and surface smoothness, also have higher surface gloss and angularity simultaneously, and its system
Standby process is simple, manufacturing cost is lower, and production efficiency is higher, disclosure satisfy that the demand of production in enormous quantities.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of efficient heat-resisting pbt-pp alloy it is characterised in that include following weight portion component: pbt75～90 weight portion,
Pp45～60 weight portion, glass fibre 40～50 weight portion, compatilizer 10～15 weight portion, Polyetherimide 20～35 weight
Part, finishing agent 5～10 weight portion, lubricant 1.5～2 weight portion, 2,6- three-level butyl -4- methylphenol 10～15 weight
Part.
2. efficient heat-resisting pbt-pp alloy according to claim 1 is it is characterised in that described pbt is 75 weight portions, described
Pp is 45 weight portions, and described glass fibre is 40 weight portions, and described compatilizer is 10 weight portions, and described Polyetherimide is 20 weights
Amount part, described finishing agent is 5 weight portions, and described lubricant is 1.5 weight portions, described 2,6- three-level butyl -4- methylbenzene
Phenol is 10 weight portions.
3. efficient heat-resisting pbt-pp alloy according to claim 1 is it is characterised in that described pbt intrinsic viscosity is
0.8-1.3dl/g.
4. efficient heat-resisting pbt-pp alloy according to claim 1 it is characterised in that described compatilizer be eva and/or
eva-g-mah.
5. efficient heat-resisting pbt-pp alloy according to claim 1 it is characterized in that, described finishing agent is line style
Low Density Polyethylene.
6. the preparation method of the efficient heat-resisting pbt-pp alloy described in a kind of any one according to claim 1 to 5, its feature exists
In the method adopts following steps: (1) weighs pbt75～90 weight portion, pp45～60 weight portion, glass fibre 40～50 weight
Amount part, compatilizer 10～15 weight portion, Polyetherimide 20～35 weight portion, finishing agent 5～10 weight portion, lubricant
1.5～2 weight portions, 2,6- three-level butyl -4- methylphenol 10～15 weight portion, and each component is positioned over high-speed mixer
Interior, mix homogeneously at ambient temperature；(2) mixture produced in step (1) is sent in double screw extruder, control extrusion
Temperature is 190-230 DEG C, and screw speed is 200-500 rev/min, adds glass fibre 40～50 in extruder the 4th humidity province
Weight portion, through melt blending extrusion, tie rod, obtains fiberglass reinforced pbt/pp alloy after water cooled, dry, pelletizing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610718256.5A CN106349659A (en) | 2016-08-24 | 2016-08-24 | High-efficiency heat-resistant PBT-PP alloy and preparation method thereof |
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| CN201610718256.5A CN106349659A (en) | 2016-08-24 | 2016-08-24 | High-efficiency heat-resistant PBT-PP alloy and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104592722A (en) * | 2015-02-03 | 2015-05-06 | 上海日之升新技术发展有限公司 | High-luster low-warpage glass fiber reinforced PBT/PP (Polybutylene Terephthalate/Polypropylene) alloy and preparation method thereof |
| CN104672882A (en) * | 2015-03-05 | 2015-06-03 | 安徽科聚新材料有限公司 | Glass fiber reinforced halogen-free flame retardant PC (polycarbonate)/PEI (polyetherimide) composite material and preparation method thereof |
-
2016
- 2016-08-24 CN CN201610718256.5A patent/CN106349659A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104592722A (en) * | 2015-02-03 | 2015-05-06 | 上海日之升新技术发展有限公司 | High-luster low-warpage glass fiber reinforced PBT/PP (Polybutylene Terephthalate/Polypropylene) alloy and preparation method thereof |
| CN104672882A (en) * | 2015-03-05 | 2015-06-03 | 安徽科聚新材料有限公司 | Glass fiber reinforced halogen-free flame retardant PC (polycarbonate)/PEI (polyetherimide) composite material and preparation method thereof |
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