CN109705451A - A kind of preparation method using fiber reinforced polypropylene strength composite materials - Google Patents
A kind of preparation method using fiber reinforced polypropylene strength composite materials Download PDFInfo
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- CN109705451A CN109705451A CN201711009499.2A CN201711009499A CN109705451A CN 109705451 A CN109705451 A CN 109705451A CN 201711009499 A CN201711009499 A CN 201711009499A CN 109705451 A CN109705451 A CN 109705451A
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Abstract
The invention belongs to field of composite material preparation more particularly to a kind of preparation methods using fiber reinforced polypropylene strength composite materials.Composite material produced by the present invention has excellent interfacial combined function, and fiber content is high, can be arranged with continuously-directional, which can prepare thermoplastic composite sheet material products by heat pressing process, and product has excellent mechanical property and intensity designability.
Description
Technical field
The invention belongs to field of composite material preparation more particularly to a kind of use fiber reinforced polypropylene strength composite materials
Preparation method.
Background technique
Polyacrylic crystallinity is high, compound with regular structure, thus has excellent mechanical property.Mechanical Properties of PP it is absolute
Value is higher than polyethylene, but still falls within relatively low kind in a plastic material, and tensile strength only can reach 30MPa or slightly higher water
It is flat.The biggish polypropylene of isotactic index tensile strength with higher, but with the raising of isotactic index, the impact strength of material has
Declined, but is no longer changed after dropping to a certain numerical value.Temperature and loading speed influence polyacrylic toughness very big.Work as temperature
When higher than glass transition temperature, it is in brittle fracture lower than glass transition temperature, and impact value is substantially that impact failure, which is in ductile rupture,
Degree decline.Loading speed is improved, the temperature that ductile rupture can be made to change to brittle fracture rises.Polypropylene has excellent bending resistance
Bent fatigability, product at normal temperature bent 106 times without damage.
Reinforced polypropylene (reinforced polypropylene) is polypropylene and glass fibre or organic fiber, stone
The mixture of cotton or inorganic filler (talcum powder, calcium carbonate).It generallys use and glass fibre, powder additives or elastomer is added
Method PP is modified.30% glass fibre, which is added, so that shrinking percentage is dropped to 0.7%.Homopolymer type and copolymer type
PP material all has excellent resistance to water soak, antiacid caustic corrosion, antilysis.However, it is to aromatic hydrocarbon (such as benzene) solvent, chlorine
Changing hydrocarbon (carbon tetrachloride) solvent etc. does not have resistance.PP also still has inoxidizability at high temperature not as PE.General industry
Contain 10~30% fiber in glass fiber reinforced polypropylene.Due to containing glass fibre and have good heat resistance and
Dimensional stability.Reinforced polypropylene mainly includes automobile fan, air-conditioning fan, water purification mainly for the manufacture of various machine components
Device filter flask can be used for all kinds of household appliance appearance parts substitution ABS, HIPS in electrical apparatus industry, be widely used in refrigerator top cover, base plate of air conditioner,
Pediluvium apparatus etc..But the Properties of Polypropylene that the method for existing fiber reinforced polypropylene obtains is not able to satisfy actual demand still, and
And production efficiency is low.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of using fiber reinforced polypropylene high strength composite
Preparation method.
In order to realize the above method, the preparation side provided by the invention using fiber reinforced polypropylene strength composite materials
Method, specifically includes the following steps:
Step 1, in parts by weight proportion are 15 parts of -20 parts of rubber elastomers, 55 parts of -60 parts of paraffin, 3 parts of -5 parts of KH-550 silane
Coupling agent weighs each raw material；It is melted under the conditions of being placed in 200-210 DEG C, obtains modified plastics melt；Proportion weighs in parts by weight
After mixing, obtained composite fibre beam is equal with the speed of 0.5-1.0r/s for 50-60 parts of glass fibres and 30-40 parts of boron fibres
It is even that continuous frictioning processing 1-1.5h and is carried out by the dipping tank wire drawing containing molten resin, obtain the continuous fiber of modified plastics
Beam.
Step 2 is determined the continuous tow that modified plastics coats by canoe in flat metal die surface
To arrangement, speed of wrap 0.5-1.0r/s；Using hot press under the conditions of 195-200 DEG C, 15-20MPa hot pressing 20-
25min；It then cools to room temperature, is cut with cutting machine, the assorted fibre containing plastic clad for obtaining oriented alignment is thin
Piece.
Step 3, by PP pellet and EVA with parts by weight proportion for 75 parts of -85 parts: 15 parts of -25 parts of ingredients, the ingredient is mixed
Mixing extrusion obtains acrylic resin thin slice in mill；Again by the modified plastics cladding assorted fibre thin slice of preparation and polypropylene tree
Rouge thin slice spacer stack passes through mold hot pressing 35-40min at 205-210 DEG C, 15-20MPa；It then cools to room temperature, obtains
Using fiber reinforced polypropylene high strength composite.
Remarkable result of the invention.
Composite material produced by the present invention has excellent interfacial combined function, and fiber content is high, can continuously determine
To arrangement, which can prepare thermoplastic composite sheet material products by heat pressing process, and product has excellent mechanical property
With intensity designability.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.
Embodiment 1.
Using the preparation method of fiber reinforced polypropylene strength composite materials, specifically includes the following steps:
Step 1, in parts by weight proportion are 16 parts of rubber elastomers, 58 parts of paraffin, 4 parts of KH-550 silane coupling agents weigh each original
Material；It is melted under the conditions of being placed in 205 DEG C, obtains modified plastics melt；Proportion weighs 58 parts of glass fibres and 32 parts in parts by weight
After mixing, obtained composite fibre beam is drawn with the speed of 0.6r/s uniformly through the dipping tank containing molten resin boron fibre
Silk, and continuous frictioning processing 1.3h is carried out, obtain the continuous tow of modified plastics.
Step 2 is determined the continuous tow that modified plastics coats by canoe in flat metal die surface
To arrangement, speed of wrap 0.7r/s；Using hot press under the conditions of 198 DEG C, 17MPa hot pressing 23min；It is subsequently cooled to room
Temperature is cut with cutting machine, obtains the assorted fibre thin slice containing plastic clad of oriented alignment.
Step 3, by PP pellet and EVA with parts by weight proportion for 80 parts: 20 part ingredients, which is kneaded in kneading machine
Extrusion obtains acrylic resin thin slice；Again by the modified plastics cladding assorted fibre thin slice of preparation and acrylic resin thin slice interval
Lamination passes through mold hot pressing 38min at 208 DEG C, 27MPa；It then cools to room temperature, obtains high using fiber reinforced polypropylene
Strength composite materials.
Embodiment 2.
Using the preparation method of fiber reinforced polypropylene strength composite materials, specifically includes the following steps:
Step 1, in parts by weight proportion are 20 parts of rubber elastomers, 55 parts of paraffin, 5 parts of KH-550 silane coupling agents weigh each original
Material；It is melted under the conditions of being placed in 210 DEG C, obtains modified plastics melt；Proportion weighs 60 parts of glass fibres and 30 parts in parts by weight
After mixing, obtained composite fibre beam is drawn with the speed of 1.0r/s uniformly through the dipping tank containing molten resin boron fibre
Silk, and continuous frictioning processing 1.5h is carried out, obtain the continuous tow of modified plastics.
Step 2 is determined the continuous tow that modified plastics coats by canoe in flat metal die surface
To arrangement, speed of wrap 0.5r/s；Using hot press under the conditions of 200 DEG C, 20MPa hot pressing 20min；It is subsequently cooled to room
Temperature is cut with cutting machine, obtains the assorted fibre thin slice containing plastic clad of oriented alignment.
Step 3, by PP pellet and EVA with parts by weight proportion for 75 parts: 25 part ingredients, which is kneaded in kneading machine
Extrusion obtains acrylic resin thin slice；Again by the modified plastics cladding assorted fibre thin slice of preparation and acrylic resin thin slice interval
Lamination passes through mold hot pressing 35min at 205 DEG C, 15MPa；It then cools to room temperature, obtains high using fiber reinforced polypropylene
Strength composite materials.
Embodiment 3.
Using the preparation method of fiber reinforced polypropylene strength composite materials, specifically includes the following steps:
Step 1, in parts by weight proportion are 20 parts of rubber elastomers, 55 parts of paraffin, 3 parts of KH-550 silane coupling agents weigh each original
Material；It is melted under the conditions of being placed in 200 DEG C, obtains modified plastics melt；Proportion weighs 60 parts of glass fibres and 30 parts in parts by weight
After mixing, obtained composite fibre beam is drawn with the speed of 0.5r/s uniformly through the dipping tank containing molten resin boron fibre
Silk, and continuous frictioning processing 1.5h is carried out, obtain the continuous tow of modified plastics.
Step 2 is determined the continuous tow that modified plastics coats by canoe in flat metal die surface
To arrangement, speed of wrap 0.5r/s；Using hot press under the conditions of 200 DEG C, 20MPa hot pressing 25min；It is subsequently cooled to room
Temperature is cut with cutting machine, obtains the assorted fibre thin slice containing plastic clad of oriented alignment.
Step 3, by PP pellet and EVA with parts by weight proportion for 85 parts: 15 part ingredients, which is kneaded in kneading machine
Extrusion obtains acrylic resin thin slice；Again by the modified plastics cladding assorted fibre thin slice of preparation and acrylic resin thin slice interval
Lamination passes through mold hot pressing 40min at 210 DEG C, 20MPa；It then cools to room temperature, obtains high using fiber reinforced polypropylene
Strength composite materials.
Use fiber reinforced polypropylene high strength composite mechanics properties testing that above-mentioned 3 embodiments obtain as a result,
It is shown in Table 1.
The polypropylene high strength composite mechanics properties testing result that 13 embodiments of table obtain.
Claims (4)
1. a kind of preparation method using fiber reinforced polypropylene strength composite materials, which is characterized in that specifically include following step
It is rapid:
Step 1, in parts by weight proportion are 15 parts of -20 parts of rubber elastomers, 55 parts of -60 parts of paraffin, 3 parts of -5 parts of KH-550 silane
Coupling agent weighs each raw material；It is melted under the conditions of being placed in 200-210 DEG C, obtains modified plastics melt；Proportion weighs in parts by weight
After mixing, obtained composite fibre beam is equal with the speed of 0.5-1.0r/s for 50-60 parts of glass fibres and 30-40 parts of boron fibres
It is even that continuous frictioning processing 1-1.5h and is carried out by the dipping tank wire drawing containing molten resin, obtain the continuous fiber of modified plastics
Beam；
The continuous tow that modified plastics coats is oriented row in flat metal die surface by canoe by step 2
Cloth, speed of wrap 0.5-1.0r/s；Using hot press under the conditions of 195-200 DEG C, 15-20MPa hot pressing 20-25min；So
After be cooled to room temperature, cut with cutting machine, obtain the assorted fibre thin slice containing plastic clad of oriented alignment；
Step 3, by PP pellet and EVA with parts by weight proportion for 75 parts of -85 parts: 15 parts of -25 parts of ingredients, the ingredient is in kneading machine
Middle mixing extrusion obtains acrylic resin thin slice；The modified plastics of preparation is coated into assorted fibre thin slice again and acrylic resin is thin
Piece spacer stack passes through mold hot pressing 35-40min at 205-210 DEG C, 15-20MPa；It then cools to room temperature, is used
Fiber reinforced polypropylene high strength composite.
2. using the preparation method of fiber reinforced polypropylene strength composite materials as described in claim 1, which is characterized in that tool
Body the following steps are included:
Step 1, in parts by weight proportion are 16 parts of rubber elastomers, 58 parts of paraffin, 4 parts of KH-550 silane coupling agents weigh each original
Material；It is melted under the conditions of being placed in 205 DEG C, obtains modified plastics melt；Proportion weighs 58 parts of glass fibres and 32 parts in parts by weight
After mixing, obtained composite fibre beam is drawn with the speed of 0.6r/s uniformly through the dipping tank containing molten resin boron fibre
Silk, and continuous frictioning processing 1.3h is carried out, obtain the continuous tow of modified plastics；
The continuous tow that modified plastics coats is oriented row in flat metal die surface by canoe by step 2
Cloth, speed of wrap 0.7r/s；Using hot press under the conditions of 198 DEG C, 17MPa hot pressing 23min；It then cools to room temperature, uses
Cutting machine is cut, and the assorted fibre thin slice containing plastic clad of oriented alignment is obtained；
Step 3, by PP pellet and EVA with parts by weight proportion for 80 parts: 20 part ingredients, ingredient mixing extrusion in kneading machine
Obtain acrylic resin thin slice；Again by the modified plastics cladding assorted fibre thin slice and acrylic resin thin slice spacer stack of preparation
By mold at 208 DEG C, 27MPa hot pressing 38min；It then cools to room temperature, obtains high-intensitive using fiber reinforced polypropylene
Composite material.
3. using the preparation method of fiber reinforced polypropylene strength composite materials as described in claim 1, which is characterized in that tool
Body the following steps are included:
Step 1, in parts by weight proportion are 20 parts of rubber elastomers, 55 parts of paraffin, 5 parts of KH-550 silane coupling agents weigh each original
Material；It is melted under the conditions of being placed in 210 DEG C, obtains modified plastics melt；Proportion weighs 60 parts of glass fibres and 30 parts in parts by weight
After mixing, obtained composite fibre beam is drawn with the speed of 1.0r/s uniformly through the dipping tank containing molten resin boron fibre
Silk, and continuous frictioning processing 1.5h is carried out, obtain the continuous tow of modified plastics；
The continuous tow that modified plastics coats is oriented row in flat metal die surface by canoe by step 2
Cloth, speed of wrap 0.5r/s；Using hot press under the conditions of 200 DEG C, 20MPa hot pressing 20min；It then cools to room temperature, uses
Cutting machine is cut, and the assorted fibre thin slice containing plastic clad of oriented alignment is obtained；
Step 3, by PP pellet and EVA with parts by weight proportion for 75 parts: 25 part ingredients, ingredient mixing extrusion in kneading machine
Obtain acrylic resin thin slice；Again by the modified plastics cladding assorted fibre thin slice and acrylic resin thin slice spacer stack of preparation
By mold at 205 DEG C, 15MPa hot pressing 35min；It then cools to room temperature, obtains high-intensitive using fiber reinforced polypropylene
Composite material.
4. using the preparation method of fiber reinforced polypropylene strength composite materials as described in claim 1, which is characterized in that tool
Body the following steps are included:
Step 1, in parts by weight proportion are 20 parts of rubber elastomers, 55 parts of paraffin, 3 parts of KH-550 silane coupling agents weigh each original
Material；It is melted under the conditions of being placed in 200 DEG C, obtains modified plastics melt；Proportion weighs 60 parts of glass fibres and 30 parts in parts by weight
After mixing, obtained composite fibre beam is drawn with the speed of 0.5r/s uniformly through the dipping tank containing molten resin boron fibre
Silk, and continuous frictioning processing 1.5h is carried out, obtain the continuous tow of modified plastics；
The continuous tow that modified plastics coats is oriented row in flat metal die surface by canoe by step 2
Cloth, speed of wrap 0.5r/s；Using hot press under the conditions of 200 DEG C, 20MPa hot pressing 25min；It then cools to room temperature, uses
Cutting machine is cut, and the assorted fibre thin slice containing plastic clad of oriented alignment is obtained；
Step 3, by PP pellet and EVA with parts by weight proportion for 85 parts: 15 part ingredients, ingredient mixing extrusion in kneading machine
Obtain acrylic resin thin slice；Again by the modified plastics cladding assorted fibre thin slice and acrylic resin thin slice spacer stack of preparation
By mold at 210 DEG C, 20MPa hot pressing 40min；It then cools to room temperature, obtains high-intensitive using fiber reinforced polypropylene
Composite material.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114908449A (en) * | 2022-05-31 | 2022-08-16 | 张家港锦亿化纤有限公司 | Production method of high-imitation silk polyester fiber |
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2017
- 2017-10-25 CN CN201711009499.2A patent/CN109705451A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114908449A (en) * | 2022-05-31 | 2022-08-16 | 张家港锦亿化纤有限公司 | Production method of high-imitation silk polyester fiber |
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Application publication date: 20190503 |
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