CN107915897A - A kind of preparation method of high-modulus polypropylene composites - Google Patents
A kind of preparation method of high-modulus polypropylene composites Download PDFInfo
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- CN107915897A CN107915897A CN201610874802.4A CN201610874802A CN107915897A CN 107915897 A CN107915897 A CN 107915897A CN 201610874802 A CN201610874802 A CN 201610874802A CN 107915897 A CN107915897 A CN 107915897A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92552—Frequency
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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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
- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
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Abstract
The present invention relates to plant fiber filled modified polypropylene technical field, especially a kind of preparation method of high-modulus polypropylene composites；The mass fraction composition of the plant fiber filled modified polypropylene composite material is as follows：60 80 parts of acrylic resin, mesh number for the mesh of 150 mesh ~ 300 0.2 ~ 0.4 part of 1 ~ 2 part of 1 ~ 3 part of 2 ~ 5 parts of 25 ~ 35 parts of plant fiber powder, compatilizer, coupling agent, white oil, calcium stearate.The method have the advantages that be blended using the acrylic resin of the very big trade mark of two kinds of performance differences, and use plant fiber the mechanical property for the composite material prepared is big as reinforcing agent, modulus is high, enhances the application value of product.
Description
Technical field
The invention belongs to plant fiber filled modified polypropylene technical field, and in particular to and a kind of high-modulus plant fiber/
The preparation method of PP composite material.
Background technology
Traditional fibre reinforced composites are fine by polypropylene fibre, glass fibre, aromatic polyamide fibre or carbon
The chemical fibres such as dimension composition, they are usually present the problems such as big, cost is high, environment easy to pollute of consuming energy.Natural plants are fine
It is to make reinforcing material with natural plant fibre to tie up composite material, and resin makees a kind of composite material of matrix；Natural plant fibre has
There are strength and stiffness inexpensive, recyclable, degradable, renewable, and that there is general fiber, and proportion is smaller, than strong
Degree, specific stiffness are higher；Relatively low as the composite material price of enhancing base using natural plant fibre, density is small, intensity is good, hot
Can be excellent.
But can make strengthen base natural plant fibre species it is very much, cellulose fibre mainly have timber, cotton fiber,
Bamboo fibre etc.；Stalk fiber mainly has straw, straw, cornstalk etc..Due to the skill of existing plant fiber enhancing composite material
Art deficiency, traditional reinforcing material is compared with glass fibre, carbon fiber, inorganic filler etc., natural plant fibre enhancing composite wood
The mechanical properties such as the impact strength of material, tensile strength, bending strength do not reach application requirement.Number of patent application
201210393261.5《A kind of Plant fiber wood-plastic composite material and preparation method thereof》.These preparation methods do not solve well
Certainly composite material interface is weak, the technical problem such as poor compatibility, and plant fiber enhancing effect is not notable.Number of patent application
201510968817.2《A kind of high-strength polypropylene glass fiber composite material and preparation method thereof》, glass fibre reinforced composite material grinds
It is thorough to study carefully comparison, excellent product performance, but material hot property is poor, not environmentally etc..
Present invention adds two kinds of trade mark polypropylene material BX3900 and B8101 and plant fiber, adjusts proportions
The performance of modified resin can be optimized, so as to prepare a kind of modulus height, plant fiber/polypropylene composite materials material of high mechanical properties
Material.Bending modulus is higher, and rigidity is bigger, wider suitable for the manufacture of close instrument, application range.
The content of the invention
The present invention overcomes deficiency of the prior art, there is provided and the plant fiber that a kind of cost is low, environmentally friendly, mechanical property is good/
PP composite material, to substitute talcum powder/PP composite material currently on the market.In order to solve the above technical problems, this
It is as follows to invent the technical solution used：
By weight, formula is as follows for its raw material components：Different 60-80 parts of trade mark acrylic resins, 25 ~ 35 parts of plant fiber powder
(mesh number is the mesh of 150 mesh ~ 300), 2 ~ 5 parts of compatilizer, 1 ~ 3 part of coupling agent, 1 ~ 2 part of white oil, 0.2 ~ 0.4 part of calcium stearate.
A kind of preparation method of high-modulus polypropylene composites of the present invention, its method include with
Lower step：
（1）By plant fiber powder be placed in baking oven 60 DEG C of drying 24 it is small when.Then it is standby that 25 ~ 35 parts of plant fiber powder are weighed
With；
（2）Weigh 60 ~ 80 parts of two kinds of trade mark acrylic resins, 2 ~ 5 parts of compatilizers, 1 ~ 3 part of coupling agent, 1 ~ 2 part of white oil, tristearin
Sour 0.2 ~ 0.4 part of calcium, while add step（1）In plant fiber powder, be blended 3 times in high mixer, every time about 10s；
（3）By step（2）Resulting material adds double screw extruder, in 170 ~ 180 DEG C of temperature, 260 ~ 300r/min of rotating speed, master
Feeding frequency 7-9HZ, side feeding frequency 0HZ process conditions under be granulated, it is multiple to prepare plant fiber/polypropylene of the present invention
Condensation material.
A kind of preparation method of high-modulus polypropylene composites of the present invention, has the following advantages：
1st, polypropylene composites of the present invention be the plant fiber powder used as raw material, density is low,
Derive from a wealth of sources and be easy to get and environmentally friendly, cheap, resource can be made reasonably to be develop and useedd, there is significant social value
And economic value；
2nd, polypropylene/composite material of plant fiber density that prepared by the present invention is small and has good mechanical performance, heat resistance,
It can be applied to light weight material in automobile to achieve energy-saving and emission reduction purposes, reduce environmental pollution；
3rd, polypropylene/composite material of plant fiber of the present invention a step can be completed in double screw extruder, prepare work
Skill is simple and easily operated, is adapted to large-scale industrial production；
4th, the present invention, which prepares product, has the characteristics that high-modulus, has very big application value.
Embodiment
Raw material used in embodiment, unless otherwise specified, each component is all parts by weight in embodiment.
Embodiment 1
（1）By powdered rice hulls put in an oven 60 DEG C drying 24 it is small when.Then it is spare that 25 ~ 35 parts of powdered rice hulls are weighed；
（2）Weigh 60 ~ 80 parts of two kinds of trade mark acrylic resins, 2 ~ 5 parts of compatilizers, 1 ~ 3 part of coupling agent, 1 ~ 2 part of white oil, tristearin
Sour 0.2 ~ 0.4 part of calcium, while add step（1）In powdered rice hulls, be blended 3 times in high mixer, every time about 10s；
（3）By step（2）Resulting material adds double screw extruder, in 170 ~ 180 DEG C of temperature, 260 ~ 300r/min of rotating speed, master
Feeding frequency 7-9HZ, side feeding frequency 0HZ process conditions under be granulated, it is multiple to prepare plant fiber/polypropylene of the present invention
Condensation material.
Obtained polypropylene composites in the present embodiment are detected, including impact strength, stretching are by force
Quality index including degree, bending strength, testing result are as follows：
1 polypropylene trade mark BX3900/B8101/ powdered rice hulls of table are 50/30/20 performance detection data
Performance comparison brief summary：
The simply supported beam notch impact strength of obtained polypropylene composites, simply supported beam non-notch in the present embodiment
Weaken though impact strength, tensile strength, bending strength are opposite with virgin pp, bending modulus and melt index are poly- better than pure
Propylene.And compared with PP+20% talcum powder, simply supported beam unnotched impact strength, tensile strength, bending strength, bending modulus compared with
Difference, simply supported beam notch impact strength and melt index are preferable.
Embodiment 2
（1）By powdered rice hulls put in an oven 60 DEG C drying 24 it is small when.Then it is spare that 25 ~ 35 parts of powdered rice hulls are weighed；
（2）Weigh 60 ~ 80 parts of two kinds of trade mark acrylic resins, 2 ~ 5 parts of compatilizers, 1 ~ 3 part of coupling agent, 1 ~ 2 part of white oil, tristearin
Sour 0.2 ~ 0.4 part of calcium, while add step（1）In powdered rice hulls, be blended 3 times in high mixer, every time about 10s；
（3）By step（2）Resulting material adds double screw extruder, in 170 ~ 180 DEG C of temperature, 260 ~ 300r/min of rotating speed, master
Feeding frequency 7-9HZ, side feeding frequency 0HZ process conditions under be granulated, it is multiple to prepare plant fiber/polypropylene of the present invention
Condensation material.
Obtained polypropylene composites in the present embodiment are detected, including impact strength, stretching are by force
Quality index including degree, bending strength, testing result are as follows：
2 polypropylene trade mark BX3900/B8101/ powdered rice hulls of table are 50/20/30 performance detection data
Performance comparison brief summary：
The simply supported beam notch impact strength of obtained polypropylene composites, simply supported beam non-notch in the present embodiment
Impact strength, tensile strength are opposite have been weakened with virgin pp, and bending strength approaches, and bending modulus and melt index are better than pure
Polypropylene.And compared with PP+20% talcum powder, simply supported beam unnotched impact strength, bending strength are poor, simply supported beam notch shock
Intensity, tensile strength, bending modulus approach, and melt index is preferable.
Embodiment 3
（1）By powdered rice hulls put in an oven 60 DEG C drying 24 it is small when.Then it is spare that 25 ~ 35 parts of powdered rice hulls are weighed；
（2）Weigh 60 ~ 80 parts of two kinds of trade mark acrylic resins, 2 ~ 5 parts of compatilizers, 1 ~ 3 part of coupling agent, 1 ~ 2 part of white oil, tristearin
Sour 0.2 ~ 0.4 part of calcium, while add step（1）In powdered rice hulls, be blended 3 times in high mixer, every time about 10s；
（3）By step（2）Resulting material adds double screw extruder, in 170 ~ 180 DEG C of temperature, 260 ~ 300r/min of rotating speed, master
Feeding frequency 7-9HZ, side feeding frequency 0HZ process conditions under be granulated, it is multiple to prepare plant fiber/polypropylene of the present invention
Condensation material.
Obtained polypropylene/composite material of plant fiber in the present embodiment is detected, including impact strength, stretching are by force
Quality index including degree, bending strength, testing result are as follows：
3 polypropylene trade mark BX3900/B8101/ powdered rice hulls of table are 45/25/30 performance detection data
Performance comparison brief summary
The simply supported beam notch impact strength of obtained polypropylene composites, simply supported beam non-notch in the present embodiment
Impact strength, tensile strength are opposite have been weakened with virgin pp, but bending strength, bending modulus, melt index are poly- better than pure
Propylene.And compared with PP+20% talcum powder, simply supported beam unnotched impact strength, bending strength are poor, and simply supported beam notch shock is strong
Degree, tensile strength, bending modulus approach, and melt index is preferable.
Contrasted by 1 ~ 3 testing result of embodiment, polypropylene/composite material of plant fiber performance there are some differences, can be with
For there is the product of different demands；By the way that to polypropylene BX3900, the regulation and control of polypropylene B8101 and powdered rice hulls ratio, can see
It is excellent to go out the properties of plant fiber enhancing modified polypropylene composite material prepared in embodiment 2 and embodiment 3, especially
Bending modulus is particularly pertinent, reaches project standard, there is very big application value, can be used for replacing talcum powder/PP composite materials.
The above, is only the section Example of the present invention, not makees limitation in any form to the present invention, this
Field it will be appreciated by the skilled person that without departing from the scope of the present invention, technology contents are carried out a little change or
Modification, becomes the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, the skill according to the present invention
Any simple modification, equivalent change and modification that art substantially makees above example, belongs to the model of technical solution of the present invention
In enclosing.
Claims (7)
1. a kind of polypropylene composites and preparation method thereof, it is characterised in that a kind of high-modulus plant is fine
The preparation method of dimension/PP composite material：Using plant fiber filled modified polypropylene, it is made up of extrusion by melting compound
Material, by weight, formula is as follows for its raw material components：(mesh number is for 60-80 parts of acrylic resin, 25 ~ 35 parts of plant fiber powder
The mesh of 150 mesh ~ 300), 2 ~ 5 parts of compatilizer, 1 ~ 3 part of coupling agent, 1 ~ 2 part of white oil, 0.2 ~ 0.4 part of calcium stearate.
2. polypropylene composites as claimed in claim 1, it is characterised in that the plant fiber powder is
One kind of powdered rice hulls, straw powder, straw powder or bamboo powder.
3. polypropylene composites as claimed in claim 1, it is characterised in that the compatilizer is maleic acid
Acid anhydride graft polypropylene.
4. polypropylene composites as claimed in claim 1, it is characterised in that the coupling agent is even for silane
Join one kind in agent KH-550, KH-560, KH-570 or wood moulding coupling agent.
5. polypropylene composites as claimed in claim 1, it is characterised in that described two trade mark polypropylene
Resin is B8101 and BX3900.
6. polypropylene composites as claimed in claim 1, it is characterised in that the in-lubricant is white
Oil, external lubricant are calcium stearate.
7. a kind of a kind of any one of claim 1-6 preparation methods of high-modulus polypropylene composites, its
It is characterized in that, comprises the following steps：
（1）By plant fiber powder be placed in baking oven 60 DEG C of drying 24 it is small when；Then it is standby that 25 ~ 35 parts of plant fiber powder are weighed
With；
（2）Weigh 60 ~ 80 parts of two kinds of trade mark acrylic resins, 2 ~ 5 parts of compatilizers, 1 ~ 3 part of coupling agent, 1 ~ 2 part of white oil, tristearin
Sour 0.2 ~ 0.4 part of calcium, while add step（1）In plant fiber powder, be blended 3 times in high mixer, every time about 10s；
（3）By step（2）Resulting material adds double screw extruder, in 170 ~ 180 DEG C of temperature, 260 ~ 300r/min of rotating speed, master
Feeding frequency 7-9HZ, side feeding frequency 0HZ process conditions under be granulated, it is multiple to prepare plant fiber/polypropylene of the present invention
Condensation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610874802.4A CN107915897A (en) | 2016-10-08 | 2016-10-08 | A kind of preparation method of high-modulus polypropylene composites |
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|---|---|---|---|
| CN201610874802.4A CN107915897A (en) | 2016-10-08 | 2016-10-08 | A kind of preparation method of high-modulus polypropylene composites |
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| CN107915897A true CN107915897A (en) | 2018-04-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109749246A (en) * | 2019-03-01 | 2019-05-14 | 苏州宏裕千智能设备科技有限公司 | A kind of environment-friendly type PP edge band and preparation method thereof |
| WO2022014539A1 (en) * | 2020-07-13 | 2022-01-20 | 古河電気工業株式会社 | Cellulose-fiber-reinforced molded resin object and production method therefor |
-
2016
- 2016-10-08 CN CN201610874802.4A patent/CN107915897A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109749246A (en) * | 2019-03-01 | 2019-05-14 | 苏州宏裕千智能设备科技有限公司 | A kind of environment-friendly type PP edge band and preparation method thereof |
| WO2022014539A1 (en) * | 2020-07-13 | 2022-01-20 | 古河電気工業株式会社 | Cellulose-fiber-reinforced molded resin object and production method therefor |
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