CN108752743A - A kind of Long Glass Fiber Reinforced PP Composite and preparation method thereof - Google Patents
A kind of Long Glass Fiber Reinforced PP Composite and preparation method thereof Download PDFInfo
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- CN108752743A CN108752743A CN201810579967.8A CN201810579967A CN108752743A CN 108752743 A CN108752743 A CN 108752743A CN 201810579967 A CN201810579967 A CN 201810579967A CN 108752743 A CN108752743 A CN 108752743A
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/06—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
- C08J5/08—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials glass fibres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- Reinforced Plastic Materials (AREA)
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Abstract
A kind of Long Glass Fiber Reinforced PP Composite and preparation method thereof, includes the following steps：First by acrylic resin, PP-g-MAH, EMMA, EAA, polypropylene chain-breaker, antioxidant and mix lubricant, after double screw extruder is plasticized, send to infiltration head and glass fibre melt blending, traction discharging, pelletizing obtains Long Glass Fiber Reinforced PP Composite.This is not easy out the Long Glass Fiber Reinforced PP Composite and preparation method thereof of scattered glass wadding in stirring, by using suitable polypropylene, glass fibre, PP-g-MAH, especially EMMA, EAA and relatively preferably processing technology, it effectively prevents the melting carrier based on polypropylene and coats bad situation to glass fiber bundle, under the premise of not influencing physical property, the processing of Long Glass Fiber Reinforced PP Composite, it is scattered to significantly reduce opening for glass fiber bundle, one progress avoids to form glass floc sedimentation, blocks automatic charging pipeline or feed opening.
Description
Technical field
The present invention relates to a kind of PP composite material, specially a kind of Long Glass Fiber Reinforced PP Composite and its system
Preparation Method particularly relates to a kind of being not easy out scattered glass wadding in stirring.
Background technology
Polypropylene is widely used in building as a kind of light, nontoxic, acid and alkali-resistance, the plastics variety of relative low price,
Traffic, agricultural and industrial circle.However, polypropylene mechanical performance itself is relatively low, need to fill to it using fiber-like
Reinforcement is carried out, is otherwise difficult to meet some to the higher occasion of requirement of mechanical strength.Therefore, machinery is improved by modified method to gather
The intensity of propylene is very necessary.
Really, compared with common glass fiber glass reinforced polypropylene, long glass fiber-reinforced polypropylene has higher intensity, higher
Toughness, however there is also various deficiencies.Such as when injection-molded item, surface easily occur glass disperse not open, surface it is floating
It is fine more serious etc..Due to manufacture relationship, long glass fiber-reinforced polypropylene is the equal of plating a strata after whole beam glass infiltrates
Propylene blended melting object postcooling pelletizing forms.Whether the infiltration of glass beam is uniform, and whether coating whether do by uniform, particle notch
It is crisp, determine whether client glass fiber yarn floc sedimentation easily occurs using roving glass fiber particle when by batch mixing.
When using long glass fiber-reinforced polypropylene toner can be added, the color matching of color kind uses in a big chunk client；Also have very
Multi-user can be proportionally added into matrix acrylic resin or other polypropylene recycling broken material, roving glass fiber is used as masterbatch, to carry
High integral strength.If this when of long glass fiber-reinforced polypropylene infiltration is bad, cladding is bad, the undesirable roving glass fiber particle of notch exists
Glass fiber yarn is easy out scattered when stirring, and forms glass fiber yarn floc sedimentation, frequently can lead to block under the pipeline of automatic feeding device, injection molding machine
Material mouth etc..
Invention content
It is an object of the invention to be directed to long glass fiber-reinforced polypropylene to infiltrate bad, bad, the undesirable length of notch of cladding
Glass fiber yarn is easy out scattered when glass is stirred, and forms glass fiber yarn floc sedimentation, frequently can lead to block the pipeline of automatic feeding device,
Injection molding device feeding-port makes production disruption, and then it is multiple to provide a kind of long glass fiber-reinforced polypropylene being not easy out scattered glass wadding in stirring
Condensation material and preparation method thereof, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides the following technical solutions：A kind of Long Glass Fiber Reinforced PP Composite, it is long
Glass fiber reinforced polypropylene composite material is made of the raw material of following mass parts：
36.5~65 parts of acrylic resin, 5~8 parts of PP-g-MAH, 30~50 parts of glass fibre, EMMA0~2 part, EAA0
~2 parts, 0.1~0.5 part of polypropylene chain-breaker, 0.2~0.5 part of antioxidant, 0.2~0.5 part of lubricant.
Wherein, the length of Long Glass Fiber Reinforced PP Composite is 12mm~13mm.Acrylic resin be at 230 DEG C,
Melt index under 2.16kg is 25g/10min~80g/10min.The grafting rate of PP-g-MAH is 0.6%~0.8%.Glass
Fiber is the LFT alkali-free glass fibre direct rovings that filament diameter is 16~17 μm.The MI of EMMA is 15g/10min,
MMA contents are 18%.The MI of EAA is 35g/10min, and AA contents are 18%.
Polypropylene chain-breaker is peroxide.Glass fibre is the alkali-free glass fibre being surface-treated through silane coupling agent.
Antioxidant is antioxidant 1010,168,1076, at least one of 245；Lubricant be polyethylene wax, ethylene bis stearamide,
At least one of calcium stearate, zinc stearate.
The present invention also provides a kind of preparation methods of Long Glass Fiber Reinforced PP Composite, include the following steps：
Step 1)：First acrylic resin, PP-g-MAH, EMMA, EAA, polypropylene chain-breaker, antioxidant and lubricant are mixed
It closes, into double screw extruder, is output to infiltration head；
Step 2)：Continuous glass-fiber ancillary equipment machine so that per beam glass itself not from distortion, and even up and step on directly so that
After glass beam can be opened uniformly, into infiltration head；
Step 3)：For glass fibre after infiltration head cladding, it is multiple to obtain long glass fiber-reinforced polypropylene for traction discharging, pelletizing
Condensation material removes the long fine particle to fall short of specifications, the glass fiber yarn wadding that removal is likely to occur enters finished product after vibrating screen
Storehouse obtains Long Glass Fiber Reinforced PP Composite after mixing.
Wherein, in the step 1), the mixing velocity of batch mixer is 300 turns/min, incorporation time 3min；Twin-screw squeezes
The processing temperature for going out machine is 200 DEG C~220 DEG C, and engine speed is 200rpm~400rpm, vacuum degree >=0.08MPa.Infiltration machine
The temperature of head is 220 DEG C~240 DEG C.
In the step 2), the hauling speed needs of auxiliary machinery are corresponding with the engine speed in step 1).
In the step 3), vibrating screen is the straight line dual-axis vibration sieve that aperture is 8mm.
Compared with prior art, the beneficial effects of the invention are as follows：
The PP composite material of the present invention is by using suitable polypropylene, glass fibre, PP-g-MAH, especially
EMMA, EAA and relatively preferably processing technology effectively prevent the melting carrier based on polypropylene to glass fiber bundle cladding not
Good situation significantly reduces glass under the premise of not influencing physical property, the processing of Long Glass Fiber Reinforced PP Composite
Opening for fibre bundle is scattered, and a progress avoids to form glass floc sedimentation, blocks automatic charging pipeline or feed opening.And there is following spy
Point：
1, the related thermoplastic plastics used, all have compared with high fluidity, low processing temperature, are easily dispersed, be easy to coat
Glass fibre.
2, using glass beam " releive --- even up " ancillary equipment machine so that per beam glass itself not from distorting, and draw
It is flat to step on directly so that glass beam can be opened uniformly.
3, the bonding force for increasing acrylic resin using EMMA, EAA makes polypropylene and its melted material coat more glass
Closely.
4, by vibrating screen after pelletizing, the long fine particle to fall short of specifications is further removed, the glass that removal is likely to occur
Silk wadding.
Specific implementation mode
The embodiment of the present invention is will be detailed below, but embodiment of the present invention is not limited thereto.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts,
It shall fall within the protection scope of the present invention.
A kind of Long Glass Fiber Reinforced PP Composite is made of raw material in parts by mass：
36.5~65 parts of acrylic resin；5~8 parts of PP-g-MAH；30~50 parts of glass fibre；EMMA0~2 part；EAA0
~2 parts；0.1~0.5 part of polypropylene chain-breaker；0.2~0.5 part of antioxidant；0.2~0.5 part of lubricant.
Wherein, it is 25g/10min~80g/10min that acrylic resin, which is the melt index under 230 DEG C, 2.16kg,；PP-
The grafting rate of g-MAH is 0.6%~0.8%；Glass fibre is that the LFT alkali-free glass fibres that filament diameter is 16~17 μm are straight
Connect roving；EMMA is that MI is 15g/10min, and MMA contents are 18%；EAA is that MI is 35g/10min, and AA contents are 18%.
Polypropylene chain-breaker is peroxide.Antioxidant be antioxidant 1010,168,1076,245, at least one of.
Lubricant is at least one of polyethylene wax, ethylene bis stearamide, calcium stearate, zinc stearate.
The present invention also provides a kind of preparation methods of Long Glass Fiber Reinforced PP Composite, include the following steps：First will
Acrylic resin, PP-g-MAH, EMMA, EAA, polypropylene chain-breaker, antioxidant and lubricant mix in proportion, are squeezed through twin-screw
After going out machine plasticizing, send to infiltration head and glass fibre melt blending, traction discharging, pelletizing obtains long glass fiber-reinforced polypropylene
Composite material.
The specific steps are：
Step 1) first mixes acrylic resin, PP-g-MAH, EMMA, EAA, polypropylene chain-breaker, antioxidant and lubricant
It closes, into double screw extruder, is output to infiltration head；
Step 2) continuous glass-fiber ancillary equipment machine so that per beam glass itself not from distortion, and even up and step on directly so that glass
After fine beam can be opened uniformly, into infiltration head；
For step 3) glass fibre after infiltration head cladding, it is compound to obtain long glass fiber-reinforced polypropylene for traction discharging, pelletizing
Material removes the long fine particle to fall short of specifications, the glass fiber yarn wadding that removal is likely to occur enters finished bin after vibrating screen,
Long Glass Fiber Reinforced PP Composite is obtained after mixing
Wherein, in the step 1), the mixing velocity of batch mixer is 300 turns/min, incorporation time 3min；Twin-screw squeezes
The processing temperature for going out machine is 200 DEG C~220 DEG C, and engine speed is 200rpm~400rpm, vacuum degree >=0.08MPa.Infiltration machine
The temperature of head is 220 DEG C~240 DEG C.
In the step 2), the hauling speed needs of auxiliary machinery are corresponding with the engine speed in step 1).
In the step 3), vibrating screen is the straight line dual-axis vibration sieve that aperture is 8mm.
Embodiment 1：
A kind of Long Glass Fiber Reinforced PP Composite is made of the raw material of following mass parts：
36.5 parts of acrylic resin；8 parts of PP-g-MAH；50 parts of glass fibre；EMMA2 parts；EAA2 parts；Polypropylene chain rupture
0.5 part of agent；0.5 part of antioxidant；0.5 part of lubricant.
Step 1-1) by 36.5 parts of acrylic resins, 8 parts of PP-g-MAH, 2 parts of EMMA, 2 parts of EAA, 0.5 part of polypropylene chain rupture
Twin-screw extrusion is added from main spout by being mixed after mixing in agent, 0.5 part of antioxidant and 0.5 part of lubricant
Machine is output to infiltration head；
Step 2-1) correspondingly, corresponding step (1-1), is by continuous glass-fiber ancillary equipment machine so that 50 parts of glass
Itself evens up and steps on directly not from distortion, into infiltration head；
Step 3-1) for glass fibre after infiltration head cladding, it is multiple to obtain long glass fiber-reinforced polypropylene for traction discharging, pelletizing
Condensation material removes the long fine particle to fall short of specifications, the glass fiber yarn wadding that removal is likely to occur enters finished product after vibrating screen
Storehouse obtains Long Glass Fiber Reinforced PP Composite after mixing.
Embodiment 2：
A kind of Long Glass Fiber Reinforced PP Composite is made of the raw material of following mass parts：
62.5 parts of acrylic resin；PP-g-MAH5 parts；30 parts of glass fibre；EMMA2 parts；EAA2 parts；Polypropylene chain-breaker
0.1 part；0.2 part of antioxidant；0.2 part of lubricant.
Step 1-2) by 62.5 parts of acrylic resins, 5 parts of PP-g-MAH, 2 parts of EMMA, 2 parts of EAA, 0.1 part of polypropylene chain rupture
Twin-screw extrusion is added from main spout by being mixed after mixing in agent, 0.2 part of antioxidant and 0.2 part of lubricant
Machine is output to infiltration head；
Step 2-2) correspondingly, corresponding step step 1-2), it is by continuous glass-fiber ancillary equipment machine so that 30 parts of glass
It is fine itself not distort certainly, and even up and step on directly, into infiltration head；
Step 3-2) for glass fibre after infiltration head cladding, it is multiple to obtain long glass fiber-reinforced polypropylene for traction discharging, pelletizing
Condensation material removes the long fine particle to fall short of specifications, the glass fiber yarn wadding that removal is likely to occur enters finished product after vibrating screen
Storehouse obtains Long Glass Fiber Reinforced PP Composite after mixing.
Comparative example 1：
Difference lies in be not added with EMMA, EAA by its method and embodiment 1 unique.
Comparative example 2：
Difference lies in be not added with EMMA, EAA by its method and embodiment 2 unique.
Its main performance of the polypropylene material of Examples 1 to 2 and comparative example 1~2 and warpage properties comparing result such as 1 institute of table
Show.
The polypropylene material performance comparison result of 1 embodiment of table and comparative example
Note 1：Mixing test uses rotating speed for the mixing machine of 300 turns/min, visual observation after stirring 3 minutes.
It can be seen that from the test data of table 1 synthesis：
Using EMMA, EAA within total amount 4%, the due rigidity of material and toughness will not be significantly affected；
The influence of EMMA, EAA compare the composite wood of low glass fiber content in the influence of the composite material to high glass fiber content
Material influences big；
In the lower composite material of glass fiber content, since glass covered effect is preferable, clad is thicker, therefore does not have
The addition of EMMA, EAA, also will not obviously occur glass fiber yarn wadding open it is scattered；
Therefore, the obtained Long Glass Fiber Reinforced PP Composite that scattered glass wadding is not easy out in stirring of the present invention,
The mechanical performance of original material is not interfered with not only, and the long glass fiber-reinforced polypropylene for efficiently solving high glass fiber content is multiple
Condensation material is also easy to produce glass fiber yarn wadding after stirring use and opens, and forms silk floc sedimentation, further results in the feeding for blocking automatic feeding device
The feed opening of pipe and injection molding machine.
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 (10)
1. a kind of Long Glass Fiber Reinforced PP Composite, the Long Glass Fiber Reinforced PP Composite is by following mass parts
Raw material forms：
36.5~65 parts of acrylic resin, 5~8 parts of PP-g-MAH, 30~50 parts of glass fibre, 0~2 part of EMMA, EAA 0~
2 parts, 0.1~0.5 part of polypropylene chain-breaker, 0.2~0.5 part of antioxidant, 0.2~0.5 part of lubricant.
2. a kind of Long Glass Fiber Reinforced PP Composite according to claim 1, it is characterised in that：The roving glass fiber increases
The length of strong PP composite material is 12mm~13mm, and the glass fibre is the LFT nothings that filament diameter is 16~17 μm
Alkali containing glass fibre direct roving.
3. a kind of Long Glass Fiber Reinforced PP Composite according to claim 1, it is characterised in that：The polypropylene tree
Melt index of the fat under 230 DEG C, 2.16kg is 25g/10min~80g/10min；The grafting rate of the PP-g-MAH is
0.6%~0.8%；The MI of the EMMA is 15g/10min, and MMA contents are 18%；The MI of EAA is 35g/10min, AA contents
It is 18%.
4. a kind of Long Glass Fiber Reinforced PP Composite according to claim 1, it is characterised in that：The polypropylene is disconnected
Chain agent is peroxide.
5. a kind of Long Glass Fiber Reinforced PP Composite according to claim 1, it is characterised in that：Glass fibre is warp
The alkali-free glass fibre of silane coupling agent surface treatment.
6. a kind of Long Glass Fiber Reinforced PP Composite according to claim 1, it is characterised in that：Antioxidant is antioxygen
Agent 1010,168,1076, at least one of 245；Lubricant is polyethylene wax, ethylene bis stearamide, calcium stearate, tristearin
At least one of sour zinc.
7. a kind of preparation method of Long Glass Fiber Reinforced PP Composite according to claim 1, it is characterised in that：Packet
Include following steps：
S1：First acrylic resin, PP-g-MAH, EMMA, EAA, polypropylene chain-breaker, antioxidant and lubricant are mixed in proportion
It closes, into double screw extruder, is output to infiltration head；
S2：Continuous glass-fiber ancillary equipment machine so that per beam glass itself not from distortion, and even up and step on directly so that glass beam can
After uniformly opening, into infiltration head；
S3：For glass fibre after infiltration head cladding, traction discharging, pelletizing obtains Long Glass Fiber Reinforced PP Composite, passes through
After crossing vibrating screen, removes the long fine particle to fall short of specifications, removes the glass fiber yarn wadding being likely to occur into finished bin, be uniformly mixed
After obtain Long Glass Fiber Reinforced PP Composite.
8. a kind of preparation method of Long Glass Fiber Reinforced PP Composite according to claim 7, it is characterised in that：S1
In, the mixing velocity of batch mixer is 300 turns/min, incorporation time 3min；The processing temperature of double screw extruder be 200 DEG C~
220 DEG C, engine speed is 200rpm~400rpm, vacuum degree >=0.08MPa.The temperature for infiltrating head is 220 DEG C~240 DEG C.
9. a kind of preparation method of Long Glass Fiber Reinforced PP Composite according to claim 7, it is characterised in that：S2
In, the hauling speed needs of auxiliary machinery are corresponding with the engine speed in S1.
10. a kind of preparation method of Long Glass Fiber Reinforced PP Composite according to claim 7, it is characterised in that：
In S3, vibrating screen is the straight line dual-axis vibration sieve that aperture is 8mm.
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| CN201810579967.8A CN108752743B (en) | 2018-06-07 | 2018-06-07 | Long glass fiber reinforced polypropylene composite material and preparation method thereof |
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| CN201810579967.8A CN108752743B (en) | 2018-06-07 | 2018-06-07 | Long glass fiber reinforced polypropylene composite material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111171443A (en) * | 2019-12-27 | 2020-05-19 | 合肥圆融新材料有限公司 | Special polypropylene reinforcing material for water pump and preparation method thereof |
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| CN101338051A (en) * | 2008-08-08 | 2009-01-07 | 苏州工业园区和昌电器有限公司 | Long glass fiber reinforced polypropylene material and preparation thereof |
| CN103183894A (en) * | 2011-12-29 | 2013-07-03 | 辽宁辽杰科技有限公司 | Continuous glass fiber reinforced polypropylene resin composite material and preparation method thereof |
| CN103589103A (en) * | 2012-08-14 | 2014-02-19 | 合肥杰事杰新材料股份有限公司 | Long glass fiber reinforced composite polypropylene material, and preparation method and application thereof |
| CN104910517A (en) * | 2015-06-15 | 2015-09-16 | 上海俊尓新材料有限公司 | Bimodally-distributed glass fiber reinforced polypropylene composite material and preparation method thereof |
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2018
- 2018-06-07 CN CN201810579967.8A patent/CN108752743B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338051A (en) * | 2008-08-08 | 2009-01-07 | 苏州工业园区和昌电器有限公司 | Long glass fiber reinforced polypropylene material and preparation thereof |
| CN103183894A (en) * | 2011-12-29 | 2013-07-03 | 辽宁辽杰科技有限公司 | Continuous glass fiber reinforced polypropylene resin composite material and preparation method thereof |
| CN103589103A (en) * | 2012-08-14 | 2014-02-19 | 合肥杰事杰新材料股份有限公司 | Long glass fiber reinforced composite polypropylene material, and preparation method and application thereof |
| CN104910517A (en) * | 2015-06-15 | 2015-09-16 | 上海俊尓新材料有限公司 | Bimodally-distributed glass fiber reinforced polypropylene composite material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111171443A (en) * | 2019-12-27 | 2020-05-19 | 合肥圆融新材料有限公司 | Special polypropylene reinforcing material for water pump and preparation method thereof |
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