CN103937066A - Flame-retardant bast fiber-plastic composite material, and preparation method thereof - Google Patents
Flame-retardant bast fiber-plastic composite material, and preparation method thereof Download PDFInfo
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- CN103937066A CN103937066A CN201410044458.7A CN201410044458A CN103937066A CN 103937066 A CN103937066 A CN 103937066A CN 201410044458 A CN201410044458 A CN 201410044458A CN 103937066 A CN103937066 A CN 103937066A
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- retardant
- fire retardant
- bast fiber
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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
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
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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
- C08L2201/02—Flame or fire retardant/resistant
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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)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a polyolefin bast fiber-plastic composite material with excellent flame resistance, and a preparation method thereof. The polyolefin bast fiber-plastic composite material comprises following main ingredients, polyolefin resin, bast fiber, a modified phosphorus and nitrogen intumescent flame retardant, a compatilizer, an appropriate amount of a filling material, and a processing auxiliary agent. According to the preparation method, the ingredients above are mixed uniformly; and an obtained mixture is subjected to granulation using an extruder. The polyolefin bast fiber-plastic composite material with excellent flame resistance can be used for preparing a plurality of sheet materials and sectional materials.
Description
Technical field
The present invention relates to field of high polymer material processing, be specially a kind of fire-retardant kenaf-plastics composite and preparation method thereof.
Background technology
The development of macromolecular material is advanced by leaps and bounds in recent decades, and the processing modified of macromolecular material grows up in order to meet the particular requirements such as automobile, electrical equipment, communication, high-grade instrument.Single macromolecular material is often because certain some defect is difficult to meet the demands.And will make its performance increase substantially by carrying out modification with other macromolecular materials or packing material, meet different requirements.For example in macromolecular material, add the mineral filler such as calcium carbonate, talcum powder, both can reduce costs, can improve again the rigidity of material.In recent years a class advanced composite material recently is both at home and abroad surging forward in some years, replace the mineral filler such as calcium carbonate, talcum powder with natural biologic material exactly, it is mainly wood powder, with polyethylene, polypropylene and polyvinyl chloride, add suitable processing aid, then through the plastic processings such as extruding, mold pressing, injection molding, the sheet material of producing or section bar, can be for industries such as building materials, furniture, logistics packagings, Here it is Wood-plastic material.And natural flaxen fiber has suitable length-to-diameter ratio, be similar to glass, can provide better mechanics enhancement than wood powder to plastics, and flaxen fiber resource is extensive, as flax, sisal hemp, jute, hemp, ramie etc., there is prospect widely.
Chinese patent CN101177507A introduces a kind of method that breakings material and polyolefine are prepared matrix material, first starting material flax base material and polyolefin substrate are carried out respectively to pre-treatment, first flax base material is carried out to removal of impurities, cleaning and refinement, after refinement, carry out drying treatment, make water ratio reach 1 ± 0.5%, then carry out surface treatment, polyolefin substrate is carried out to removal of impurities simultaneously, cleaning and pulverizing, again flax base material after treatment is mixed with polyolefin substrate, the ratio of mixture that fiber crops are moulded is 70~30%: 30~70%, after mix and blend, use respectively single screw rod or double-screw extruding pelletizing, last moulding.
Chinese patent CN101229700A introduces a kind of kenaf-plastics composite sheet material method for making, kenaf-plastics composite sheet material is made up of two-layer fibrilia modified plastic layer, flaxen fiber cloth reinforced plastic layer, and between two-layer fibrilia modified plastic layer, mold pressing has flaxen fiber cloth reinforced plastic layer; Fibrilia modified plastic layer mixes calendering by modified plastics particle, flaxen fiber, Interfacial compatibilization agent and forms; The flaxen fiber cloth mold pressing that flaxen fiber cloth reinforced plastic layer was processed by plastic pellet and some layers of silane coupling agent forms.
But polyolefine material and flaxen fiber material in numb moulding are all easy burnings, in order to give the flame retardant resistance of kenaf-plastics composite, can add fire retardant, for example halogenide or halogenide/ANTIMONY TRIOXIDE SB 203 99.8 PCT.Although halogenide or halogenide/ANTIMONY TRIOXIDE SB 203 99.8 PCT flame retarding efficiency are high, the amount of being fuming is large, and the hydrogen halide of generation is toxic, has therefore limited use.Halogen-free flameproof is the trend of current flame-retarded technology development, and halogen-free flame retardants mainly contains oxyhydroxide, P-N type, silicon-containing compound etc.Oxyhydroxide is mainly aluminium hydroxide, magnesium hydroxide.Oxyhydroxide is poor efficiency fire retardant, in order to reach certain flame retardant properties, must add a large amount of oxyhydroxide, and this will cause the decline of material property.The flame retarding efficiency of silicon-containing compound neither be very high.Expanding fire retardant in P-N type fire retardant, flame retarding efficiency is higher, is suitable for the matrix material that natural biologic material is filled.
The Chinese patent application that is CN101570639 as publication number discloses a kind of flame-retardant wood-plastic composite and preparation method thereof, and the expansion type flame retardant adopting is by weight being made up of melamine pyrophosphate salt or polyphosphoric acid melamine salt, the starch of 1~8 part, the molecular sieve of 0.5~3 part and the zinc borate of 1~10 part of 18~22 parts.The expansion type flame retardant that the fire retardant adopting in the Chinese patent application that and for example publication number is CN101143952 is made up of ammonium polyphosphate and starch.These technology provide the method to wood plastic composite fire-retardant finish preferably.But also there is the shortcomings such as the easy moisture absorption, bad dispersibility in P-N type expanding fire retardant.
Summary of the invention
The invention provides a kind of fire-retardant kenaf-plastics composite and preparation method thereof, utilize the P-N type expanding fire retardant through modification, the polyolefine fiber crops moulding material that preparation flame retardant properties is good.
Specifically, the present invention realizes by following scheme:
The polyolefine fiber crops moulding material that flame retardant properties is good, its composition mainly comprises: polyolefin resin, flaxen fiber, P-N type expanding fire retardant, compatilizer, appropriate filler and processing aid.
Polyolefin resin is polyethylene or polypropylene.Flaxen fiber is the staple fibre of making as flax, sisal hemp, jute, hemp, ramie etc., can be one wherein, can be also mixture, and through surface treatment.P-N type expanding fire retardant is the product through modification, and method of modifying can be physical blending, also can be by the method for polymerization.Compatilizer is maleic anhydride grafts.Processing aid is lubricant, oxidation inhibitor etc.
Polyolefin resin is polyethylene or polypropylene, is commercially available or recovery particle.
Flaxen fiber is the staple fibre of making as flax, sisal hemp, jute, hemp, ramie etc., can be one wherein, can be also mixture.Flaxen fiber should have certain length-to-diameter ratio, and preferably length-to-diameter ratio is at 10-20, and length is below 5mm.Surface-treated with silane.
It is acid source that P-N type expanding fire retardant is selected ammonium polyphosphate or phosphoric acid etc., and tetramethylolmethane etc. are carbon source, and trimeric cyanamide is source of the gas.P-N type expanding fire retardant carries out modification, reduces the affinity of moisture absorption, increase and resin.The method of modification can be Physical, can be also chemical method.As Physical: ammonium polyphosphate, tetramethylolmethane, trimeric cyanamide and EVA, mixing granulation.Chemical method: ammonium polyphosphate tetramethylolmethane, trimeric cyanamide and water mix, and then add polypropylene and initiator, add and carry out polyreaction, react complete, drying and crushing.
Compatilizer is polyethylene maleic anhydride grafts, polypropylene maleic anhydride grafts etc.
Filler is preferentially selected talcum powder.
Lubricant is stearates or stearic amide.
Oxidation inhibitor is 1010,168 or its combination.
Embodiment
The object of the invention is a kind of fire-retardant kenaf-plastics composite and preparation method thereof.Be embodiment below, can further understand technical solution of the present invention by them.But the present invention does not limit to so, every of the present invention being equal to or equivalent transformation,, all in protection scope of the present invention.
Embodiment 1:
Ammonium polyphosphate 50kg, tetramethylolmethane 25kg, trimeric cyanamide 25kg and EVA50kg add mixing kettle to mix, and then add that single screw rod or twin screw extruder are extruded, granulation, and prilling temperature is controlled at 90-120 DEG C.
Embodiment 2:
Ammonium polyphosphate 50kg, tetramethylolmethane 25kg, trimeric cyanamide 25kg and 100kg water add reactor, add 10kg sodium acrylate, 100g benzoyl peroxide, and then high-speed stirring, and be warmed up to 90-100 DEG C, reaction 3-5 hour, dry, pulverizing.
Embodiment 3:
Flax fiber 70kg adds homogenizer, when temperature is raised to 95-100 DEG C, adds 300g silane coupling agent, cool to 40-50 DEG C, then add 400g Lubricate EBS and 200g stearic acid, fire retardant 30kg in embodiment 1,5kg talcum powder, 30kg polyethylene, 10kg polyethylene maleic anhydride graft compatilizer, 100g antioxidant 1010,200g oxidation inhibitor mixes, with double-screw extruding pelletizing, extruder temperature is 120-160 DEG C of left and right.
Polyethylene 30kg,
Embodiment 4:
Fire retardant changes the fire retardant of preparation in embodiment 2 into, and other are with embodiment 3.
Embodiment 5:
Polyethylene changes polypropylene into, and compatilizer changes polypropylene maleic anhydride graft compatilizer into, but extruder temperature changes 150-180 DEG C into, and other are with embodiment 3.
Embodiment 6:
Polyethylene changes polypropylene into, and compatilizer changes polypropylene maleic anhydride graft compatilizer into, but extruder temperature changes 150-180 DEG C into, and other are with embodiment 4.
? | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
Tensile strength MPa | 28 | 30 | 39 | 35 |
Modulus in flexure MPa | 3020 | 2980 | 3950 | 3720 |
Notched Izod impact strength (KJ/m2) | 11 | 12 | 19 | 17 |
Oxygen index | 31 | 33 | 33 | 32 |
Note: tensile strength detects according to ASTM D6110 according to ASTM D790, notched Izod impact strength according to ASTM D2863, modulus in flexure according to ASTM D638, oxygen index.
Claims (10)
1. the good polyolefine fiber crops moulding material of flame retardant properties, its composition mainly comprises: polyolefin resin, flaxen fiber, P-N type expanding fire retardant, compatilizer, appropriate filler and processing aid.
2. according to claim 1, polyolefin resin is polyethylene or polypropylene, is commercially available or recovery particle.
3. according to claim 1, flaxen fiber is the staple fibre of making as flax, sisal hemp, jute, hemp, ramie etc., can be one wherein, can be also mixture, and through surface treatment.
4. according to claim 1, flaxen fiber should have certain length-to-diameter ratio, and preferably length-to-diameter ratio is at 10-20, and length is below 5mm.Surface-treated with silane.
5. according to claim 1, it is acid source that P-N type expanding fire retardant is selected ammonium polyphosphate or phosphoric acid etc., and tetramethylolmethane etc. are carbon source, and trimeric cyanamide is source of the gas.
6. according to claim 1, P-N type expanding fire retardant carries out modification, reduces the affinity of moisture absorption, increase and resin.The method of modification can be Physical, can be also chemical method.
7. according to claim 1, compatilizer is polyethylene maleic anhydride grafts, polypropylene maleic anhydride grafts etc.
8. according to claim 1, filler is preferentially selected talcum powder.
9. according to claim 1, lubricant is stearates or stearic amide.
10. according to claim 1, oxidation inhibitor is 1010,168 or its combination.
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CN201410044458.7A CN103937066A (en) | 2014-01-24 | 2014-01-24 | Flame-retardant bast fiber-plastic composite material, and preparation method thereof |
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CN201410044458.7A CN103937066A (en) | 2014-01-24 | 2014-01-24 | Flame-retardant bast fiber-plastic composite material, and preparation method thereof |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016207870A1 (en) * | 2015-06-26 | 2016-12-29 | Moles Technology, A.S. | Method of production of fireproof polymer additive, fireproof polymer |
CN106977774A (en) * | 2017-04-27 | 2017-07-25 | 许超群 | A kind of preparation method of lightweight PE wood plastic composites |
JP2019520467A (en) * | 2016-04-16 | 2019-07-18 | モビチェム エス.アール.オー. | Process for producing fireproof impregnated material for construction, fireproof impregnated material and use thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101418099A (en) * | 2008-12-02 | 2009-04-29 | 上海金发科技发展有限公司 | Natural fiber reinforcement halogen-free flame retardant polypropylene composite material and preparation method thereof |
-
2014
- 2014-01-24 CN CN201410044458.7A patent/CN103937066A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101418099A (en) * | 2008-12-02 | 2009-04-29 | 上海金发科技发展有限公司 | Natural fiber reinforcement halogen-free flame retardant polypropylene composite material and preparation method thereof |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016207870A1 (en) * | 2015-06-26 | 2016-12-29 | Moles Technology, A.S. | Method of production of fireproof polymer additive, fireproof polymer |
JP2019520467A (en) * | 2016-04-16 | 2019-07-18 | モビチェム エス.アール.オー. | Process for producing fireproof impregnated material for construction, fireproof impregnated material and use thereof |
CN106977774A (en) * | 2017-04-27 | 2017-07-25 | 许超群 | A kind of preparation method of lightweight PE wood plastic composites |
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Application publication date: 20140723 |