CN109721929A - A kind of PP composite material and its preparation method and application - Google Patents
A kind of PP composite material and its preparation method and application Download PDFInfo
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- CN109721929A CN109721929A CN201811545265.4A CN201811545265A CN109721929A CN 109721929 A CN109721929 A CN 109721929A CN 201811545265 A CN201811545265 A CN 201811545265A CN 109721929 A CN109721929 A CN 109721929A
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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
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such 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
- C08L2205/03—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
Abstract
The invention discloses a kind of PP composite materials, it is prepared by polypropylene, elastomer, short glass fiber, add-on type liquid silicon rubber, initiator, scratch resistance liniment, compatilizer, antioxidant and other auxiliary agents, it is blended again with polypropylene fusion after add-on type liquid silicon rubber and short glass fiber are mixed, the extremely low gloss of product surface is obtained, good flexible touch is attained by from vision and tactile.The tensile strength for preparing PP composite material of the invention simultaneously is up to 23MPa or more, and bending modulus is up to 1600MPa or more, and Izod notched impact strength is up to 25 KJ/m2More than, there is fabulous rigidity-toughness balanced, can be widely applied to various fields, be specifically for use in fascia, auxiliary fasia console, in the automotive upholsteries product such as door-plate.
Description
Technical field
The invention belongs to polymeric material fields, and in particular to a kind of PP composite material and preparation method thereof and answer
With.
Background technique
In recent years, not only to meet peace to meet demands, the Trimming Design for Motor Vehicle such as consumer's pursuit comfort, beautiful and environment-friendly
Full performance also requires the feeling for allowing car to realize comfortable by aesthetics design.Polypropylene abundance, cheap,
It is easy to process, have many advantages, such as excellent mechanical performance and chemical-resistance, becomes the maximum polymerization of dosage in automobile interior exterior decorations
Object has been widely used in the products such as instrument board, auxiliary fasia console, door-plate, column, threshold.Traditional polypropylene material category
In rigid plastics sense, the product of injection molding gives very hard feeling, the sense for making a kind of texture of consumer poor, of low grade
Feel, in order to improve the comfort class of inside gadget, manufacturer often surface can by spraying rubberbase paint or leather cladding etc. come
Realize sense of touch and resilience, promote the comfort of interior trim with this, but this processing method can exist increased costs, complex procedures,
The disadvantages of processing efficiency is low, intensity is undesirable especially sprays and also will cause problem of environmental pollution, therefore is also difficult to carry out
It promotes.
Summary of the invention
Based on this, the present invention provides a kind of PP composite material, the PP composite material is by polypropylene, elasticity
Body, be chopped removing fiber, add-on type liquid silicon rubber, initiator, scratch resistance liniment, compatilizer, antioxidant, other auxiliary agents preparation and
At add-on type liquid silicon rubber is blended with polypropylene fusion, assigns the good soft feeling of PP composite material and resilience.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of PP composite material is prepared according to parts by weight by following components:
Further, the polypropylene is the group of one or both of atactic copolymerized polypropene, block copolymerization polypropylene
It closes, for the polypropylene at 230 DEG C, the melt flow rate (MFR) under the conditions of 2.16kg is 10~70g/10min.
Further, the elastomer is one of ethylene-octene copolymer (POE), ethylene-butene copolymer or two
The combination of kind.
Preferably, the length of the short glass fiber is 5~15mm, and diameter is 4~25 μm.
Preferably, the viscosity of the add-on type liquid silicon rubber is 50~100PaS.
Further, the scratch resistance liniment be one or both of silicone master batch, erucyl amide and combine.
Further, the antioxidant includes primary antioxidant and auxiliary antioxidant, and the primary antioxidant is four [β-(3,5-
Di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (antioxidant 1010), the auxiliary antioxidant is three [2,4- bis- tertiary fourths
Base phenyl] phosphite ester (irgasfos 168)；
The initiator is the combination of one or both of dibenzoyl peroxide, azodiisobutyronitrile；
The compatilizer is polypropylene grafted maleic anhydride, and grafting rate is 1.5~2.0%.
Further, other described auxiliary agents include at least one of antistatic agent, lubricant, light stabilizer, colorant.
Here the selection of other auxiliary agents and dosage do not do specific restriction, can be adjusted as needed.
It is another object of the present invention to provide a kind of preparation methods of above-mentioned PP composite material, including following step
It is rapid:
(1) add-on type liquid silicon rubber and short glass fiber high-speed stirred are weighed according to the proportion, by liquid silastic object
Reason is coated on the surface of short glass fiber, obtains modified glass-fiber；
(2) it weighs polypropylene, elastomer, initiator, scratch resistance liniment, compatilizer, antioxidant, other auxiliary agents according to the proportion
High speed is blended, and forms uniform mixed material；
(3) the uniform mixed material is added in the main hopper of extruder, while weighs modified glass according to the proportion
Fiber is added in the side feed hopper of extruder, by melting extrusion, is granulated, PP composite material is made；Wherein extruder
Extrusion temperature be 200~220 DEG C, screw speed be 350~400r/min, vacuum degree be -0.06~-0.08MPa.
Third object of the present invention is that providing above-mentioned PP composite material is being used to prepare automotive upholstery product
In application, PP composite material of the invention have excellent mechanical property, have both certain rigidity and excellent toughness, it is extremely low
Glossiness, good sense of touch, high-dimensional stability can directly obtain the product of low gloss, good sense of touch, nothing by injection molding
It need to carry out secondary operation or spraying, it is simple process, easy to operate, it is at low cost, meet the theory of environmentally protective development, it is very suitable
It shares in fascia, auxiliary fasia console, the automotive upholsteries product such as door-plate.
Compared with prior art, the invention has the following advantages:
1, add-on type liquid silicon rubber is that have siloxanes to make the low of base polymer and silicon-hydrogen bond containing with poly- containing vinyl
Polysiloxanes is vulcanization crosslinking agent, and under the action of platinum catalyst, the elastomer with network structure is formed by addition reaction,
With excellent elastic, extremely low hardness, heat-resistant aging and excellent in weather, soft-touch is comfortable, can be processed into high quality
Fabricated product, the present invention utilize add-on type liquid silicon rubber various characteristics, it is poly- to improve by being blended with polypropylene fusion
The texture of propylene.
2, short glass fiber surface is adsorbed onto short glass fiber moistened surface using add-on type liquid silicon rubber,
During melt extrusion, the exposed vinyl to short glass fiber surface, under the action of initiator, polypropylene segment with
Graft reaction occurs for the add-on type liquid silicon rubber of ethenyl blocking, and add-on type liquid silicon rubber is mutually twined with polypropylene molecular chain
Knot, two-phase reaches the state of dissolving each other, to reduce the surface hardness of composite material, enhances soft sense of touch, assigns PP composite material
Fabulous soft feeling, preferable resilience, furthermore can also improve the impact resistance of material, furthermore add-on type liquid silicon rubber one end
Short glass fiber is connected, the other end connects polypropylene segment, improves glass fibre and polypropylene interfacial adhesion, significantly mentions multiple
The mechanical property of condensation material.
3, PP composite material material of the invention has excellent mechanical property, has both certain rigid and good tough
Property, extremely low glossiness, good sense of touch, high-dimensional stability can directly obtain low gloss, good sense of touch by injection molding
Product, it is simple process, easy to operate without carrying out secondary operation or spraying, it is at low cost, meet the reason of environmentally protective development
It reads, can be widely applied in the automobile interior decorations such as instrument board, auxiliary fasia console, door-plate, column, threshold.
Specific embodiment
To facilitate the understanding of the present invention, below in conjunction with specific embodiments to invention is more fully described.But
It is that the invention can be realized in many different forms, however it is not limited to embodiments described herein.On the contrary, providing
The purpose of these embodiments is to make to make the present disclosure more fully understandable.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
It should be noted that reagent employed in following embodiment and comparative example is commercial product.
Embodiment 1
(1) it weighs 2 parts of add-on type liquid silicon rubbers to stir in high speed machine with 15 parts of short glass fibers, by liquid silicon rubber
Glue physics coats the surface of short glass fiber, obtains modified glass-fiber；
(2) 66 parts of block copolymerization polypropylenes, 15 parts of POE, 2 parts of polypropylene grafted maleic anhydrides, 0.5 part of peroxidating two are weighed
Benzoyl, 1 part of silicone master batch, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168,0.5 part of calcium stearate are put into high-speed mixer
High speed is blended, and forms uniform mixed material；
(3) the uniform mixed material is added in the main hopper of extruder, while weighed modified made from step (1)
Short glass fiber is added in side feed hopper, by melting extrusion, is granulated, PP composite material is made；Wherein extruder
Extrusion temperature be 200 DEG C, screw speed 400r/min, vacuum degree be -0.06MPa.
Embodiment 2
(1) it weighs 5 parts of add-on type liquid silicon rubbers to stir in high speed machine with 30 parts of short glass fibers, by liquid silicon rubber
Glue physics coats the surface of short glass fiber, obtains modified glass-fiber；
(2) 40 parts of block copolymerization polypropylenes, 20 parts of POE, 5 parts of polypropylene grafted maleic anhydrides, 1 part of two isobutyl of azo are weighed
Nitrile, 1.5 parts of silicone master batch, 0.2 part of antioxidant 1010,0.2 part of irgasfos 168,0.5 part of calcium stearate are put into high-speed mixer
High speed is blended, and forms uniform mixed material；
(3) the uniform mixed material is added in the main hopper of extruder, while weighed modified made from step (1)
Short glass fiber is added in side feed hopper, by melting extrusion, is granulated, PP composite material is made；Wherein extruder
Extrusion temperature be 220 DEG C, screw speed 380r/min, vacuum degree be -0.08MPa.
Embodiment 3
(1) it weighs 3 parts of add-on type liquid silicon rubbers to stir in high speed machine with 20 parts of short glass fibers, by liquid silicon rubber
Glue physics coats the surface of short glass fiber, obtains modified glass-fiber；
(2) 34 parts of block copolymerization polypropylenes, 20 parts of atactic copolymerized polypropenes, 20 parts of POE, 3 parts of polypropylene grafted horses are weighed
Come acid anhydrides, 0.75 part of dibenzoyl peroxide, 1.5 parts of silicone master batch, 0.2 part of antioxidant 1010,0.2 part of irgasfos 168,0.75
Part calcium stearate, 1 part of colorant, 0.5 part of antistatic agent, 0.25 part of light stabilizer are put into the blending of high-speed mixer high speed, shape
At uniform mixed material；
(3) the uniform mixed material is added in the main hopper of extruder, while weighed modified made from step (1)
Short glass fiber is added in side feed hopper, by melting extrusion, is granulated, PP composite material is made；Wherein extruder
Extrusion temperature be 210 DEG C, screw speed 350r/min, vacuum degree be -0.07MPa.
Embodiment 4
(1) it weighs 5 parts of add-on type liquid silicon rubbers to stir in high speed machine with 25 parts of short glass fibers, by liquid silicon rubber
Glue physics coats the surface of short glass fiber, obtains modified glass-fiber；
(2) 42 parts of block copolymerization polypropylenes, 25 parts of POE, 3 parts of polypropylene grafted maleic anhydrides, 0.75 part of peroxidating are weighed
Dibenzoyl, 1.5 parts of silicone master batch, 0.5 part of erucyl amide, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168,0.75 part it is hard
Resin acid calcium is put into the blending of high-speed mixer high speed, forms uniform mixed material；
(3) the uniform mixed material is added in the main hopper of extruder, while weighed modified made from step (1)
Short glass fiber is added in side feed hopper, by melting extrusion, is granulated, PP composite material is made；Wherein extruder
Extrusion temperature be 220 DEG C, screw speed 400r/min, vacuum degree be -0.08MPa.
Comparative example 1
(1) 42 parts of block copolymerization polypropylenes, 25 parts of POE, 5 parts of add-on type liquid silicon rubbers, 3 parts of polypropylene grafted horses are weighed
Come acid anhydrides, 0.75 part of dibenzoyl peroxide, 1.5 parts of silicone master batch, 0.5 part of erucyl amide, 0.1 part of antioxidant 1010,0.1 part
Irgasfos 168,0.75 part of calcium stearate are put into the blending of high-speed mixer high speed, form uniform mixed material；
(2) the uniform mixed material is added in the main hopper of extruder, while weighs 25 parts of short glass fibers
It is added in side feed hopper, by melting extrusion, is granulated, PP composite material is made；Wherein the extrusion temperature of extruder is
220 DEG C, screw speed 400r/min, vacuum degree is -0.06MPa.
Comparative example 2
(1) 42 parts of block copolymerization polypropylenes, 25 parts of POE, 3 parts of polypropylene grafted maleic anhydrides, 0.75 part of peroxidating are weighed
Dibenzoyl, 1.5 parts of silicone master batch, 0.5 part of erucyl amide, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168,0.75 part it is hard
Resin acid calcium is put into the blending of high-speed mixer high speed, forms uniform mixed material；
(2) the uniform mixed material is added in the main hopper of extruder, while weighs 25 parts of short glass fibers
It is added in side feed hopper, by melting extrusion, is granulated, PP composite material is made；Wherein the extrusion temperature of extruder is
220 DEG C, screw speed 400r/min, vacuum degree is -0.06MPa.
By the main physical index of PP composite material made from above-described embodiment 1~4 and comparative example 1~2 according to phase
Close examination criteria test, tensile strength, elongation at break, bending strength, bending modulus, Izod notched impact be strong, shore
Hardness, glossiness, scratch resistance, sense of touch, examination criteria are as shown in table 1 with testing result:
Table 1: the main physical index of the PP composite material of Examples 1 to 4 and comparative example 1~2
The present invention suitably matches raw material, add-on type liquid silicon rubber, elastomer, glass fibre by selection, obtains
Product there is more soft sense of touch, obtain the extremely low gloss of product surface, be attained by from vision and tactile good
Flexible touch.
Fiberglass surfacing is soaked using add-on type liquid silicon rubber, fiberglass surfacing is adsorbed onto, in melting extrusion
In the process, the exposed vinyl to glass surface, under the action of initiator, the liquid silicon of polypropylene segment and ethenyl blocking
Graft reaction occurs for rubber, and liquid silastic is intertwine with each other with polypropylene molecular chain, and two-phase reaches the state of dissolving each other, to reduce multiple
The surface hardness of condensation material enhances soft sense of touch, assigns the fabulous soft feeling of PP composite material, preferable resilience, furthermore
The impact resistance of material can also be improved, furthermore add-on type liquid silicon rubber one end connects glass fibre, and the other end connects polypropylene
Segment improves glass fibre and polypropylene interfacial adhesion, significantly proposes the mechanical property of composite material.
The tensile strength for preparing PP composite material of the invention is up to 23MPa or more, and bending modulus is up to 1600MPa
More than, Izod notched impact strength is up to 25KJ/m2More than, there is fabulous rigidity-toughness balanced, while there is good scratch resistance
Wiping property, lower gloss can be widely applied to various fields, is specifically for use in fascia, auxiliary fasia console, the vapour such as door-plate
In interior gadget product.
Soft sense of touch PP composite material simple process and low cost prepared by the present invention, is processed and formed at one time, is suitable for
Industrialize continuous production, great development and application prospect.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of PP composite material, which is characterized in that be prepared according to parts by weight by following components:
40 ~ 66 parts of polypropylene,
15 ~ 25 parts of elastomer,
15 ~ 30 parts of short glass fiber,
2 ~ 5 parts of add-on type liquid silicon rubber,
0.5 ~ 1 part of initiator,
1 ~ 2 part of scratch resistance liniment,
2 ~ 5 parts of compatilizer,
0.2 ~ 0.4 part of antioxidant,
0 ~ 2.5 part of other auxiliary agents.
2. PP composite material as described in claim 1, which is characterized in that the polypropylene be atactic copolymerized polypropene,
The combination of one or both of block copolymerization polypropylene, melt flows speed of the polypropylene at 230 DEG C, under the conditions of 2.16kg
Rate is 10 ~ 70g/10min.
3. PP composite material as described in claim 1, which is characterized in that the elastomer be ethylene-octene copolymer,
The combination of one or both of ethylene-butene copolymer.
4. PP composite material as described in claim 1, which is characterized in that the length of the short glass fiber be 5 ~
15mm, diameter are 4 ~ 25 μm.
5. PP composite material as described in claim 1, which is characterized in that the viscosity of the add-on type liquid silicon rubber
For 50 ~ 100PaS.
6. PP composite material as described in claim 1, which is characterized in that the scratch resistance liniment is silicone master batch, erucic acid
The combination of one or both of amide.
7. PP composite material as described in claim 1, which is characterized in that the antioxidant includes primary antioxidant and auxiliary
Antioxidant, the primary antioxidant are four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, and the auxiliary is anti-
Oxygen agent is three [2,4- di-tert-butyl-phenyl] phosphite esters；
The initiator is the combination of one or both of dibenzoyl peroxide, azodiisobutyronitrile；
The compatilizer is polypropylene grafted maleic anhydride, and wherein the grafting rate of maleic anhydride is 1.5 ~ 2.0%.
8. PP composite material as described in claim 1, which is characterized in that other described auxiliary agents include antistatic agent, profit
At least one of lubrication prescription, light stabilizer, colorant.
9. such as the preparation method of the described in any item PP composite materials of claim 1 ~ 8, which is characterized in that including following step
It is rapid:
(1) add-on type liquid silicon rubber and short glass fiber high-speed stirred are weighed according to the proportion, by liquid silastic physics packet
The surface for overlaying on short glass fiber, obtains modified glass-fiber；
(2) it weighs polypropylene, elastomer, initiator, scratch resistance liniment, compatilizer, antioxidant, other auxiliary agents high speed according to the proportion
It is blended, forms uniform mixed material；
(3) the uniform mixed material is added in the main hopper of extruder, while weighs modified glass-fiber according to the proportion
It is added in the side feed hopper of extruder, by melting extrusion, is granulated, PP composite material is made；Wherein extruder is crowded
Temperature is 200 ~ 220 DEG C out, and screw speed is 350 ~ 400r/min, and vacuum degree is -0.06 ~ -0.08MPa.
10. as the described in any item PP composite materials of claim 1 ~ 8 are being used to prepare answering in automotive upholstery product
With.
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| CN201811545265.4A CN109721929A (en) | 2018-12-17 | 2018-12-17 | A kind of PP composite material and its preparation method and application |
| CN201911299674.5A CN110951203A (en) | 2018-12-17 | 2019-12-17 | Polypropylene composite material and preparation method thereof |
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| CN201811545265.4A CN109721929A (en) | 2018-12-17 | 2018-12-17 | A kind of PP composite material and its preparation method and application |
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| CN201911299674.5A Pending CN110951203A (en) | 2018-12-17 | 2019-12-17 | Polypropylene composite material and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110964248A (en) * | 2019-11-29 | 2020-04-07 | 苏州润佳高分子材料有限公司 | Soft touch polypropylene composite material for automobile |
| CN113429677A (en) * | 2021-07-21 | 2021-09-24 | 沈阳化工大学 | Preparation method of polypropylene-based thermoplastic elastomer composite material |
| WO2022077864A1 (en) * | 2020-10-12 | 2022-04-21 | 金发科技股份有限公司 | Sprayable polypropylene reinforced composite material with good appearance and preparation method therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540139B (en) * | 2013-07-01 | 2016-05-18 | 江苏天辰新材料股份有限公司 | A kind of liquid silastic and preparation method thereof for high electrical property glass fiber compound material |
| CN105754223A (en) * | 2016-04-22 | 2016-07-13 | 柳州蓓蒂芬科技有限公司 | Carbon fiber reinforced polypropylene composite material |
| CN107501720A (en) * | 2017-08-04 | 2017-12-22 | 广东圆融新材料有限公司 | A kind of polypropylene material and preparation method of the good sense of touch of creep resistant damage resistant low gloss |
| CN108641188A (en) * | 2018-05-25 | 2018-10-12 | 合肥奇呗数字科技有限公司 | A kind of eco-type flame retardant compound being easily recycled |
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- 2018-12-17 CN CN201811545265.4A patent/CN109721929A/en active Pending
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110964248A (en) * | 2019-11-29 | 2020-04-07 | 苏州润佳高分子材料有限公司 | Soft touch polypropylene composite material for automobile |
| WO2022077864A1 (en) * | 2020-10-12 | 2022-04-21 | 金发科技股份有限公司 | Sprayable polypropylene reinforced composite material with good appearance and preparation method therefor |
| CN113429677A (en) * | 2021-07-21 | 2021-09-24 | 沈阳化工大学 | Preparation method of polypropylene-based thermoplastic elastomer composite material |
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Application publication date: 20190507 |