CN107189215A - A kind of flame-retardant wood-plastic and preparation method thereof - Google Patents

A kind of flame-retardant wood-plastic and preparation method thereof Download PDF

Info

Publication number
CN107189215A
CN107189215A CN201710516464.1A CN201710516464A CN107189215A CN 107189215 A CN107189215 A CN 107189215A CN 201710516464 A CN201710516464 A CN 201710516464A CN 107189215 A CN107189215 A CN 107189215A
Authority
CN
China
Prior art keywords
parts
flame
retardant
plastic
wood
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710516464.1A
Other languages
Chinese (zh)
Inventor
方晓钟
肖磊
马岩
姚红焱
高威威
贾红滢
徐民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Guofeng Wood Plastic Technology Co Ltd
Original Assignee
Anhui Guofeng Wood Plastic Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Guofeng Wood Plastic Technology Co Ltd filed Critical Anhui Guofeng Wood Plastic Technology Co Ltd
Priority to CN201710516464.1A priority Critical patent/CN107189215A/en
Publication of CN107189215A publication Critical patent/CN107189215A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/10Homopolymers or copolymers of propene
    • C08L23/12Polypropene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2217Oxides; Hydroxides of metals of magnesium
    • C08K2003/222Magnesia, i.e. magnesium oxide
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24Acids; Salts thereof
    • C08K3/26Carbonates; Bicarbonates
    • C08K2003/265Calcium, strontium or barium carbonate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/32Phosphorus-containing compounds
    • C08K2003/321Phosphates
    • C08K2003/322Ammonium phosphate
    • C08K2003/323Ammonium polyphosphate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/002Physical properties
    • C08K2201/003Additives being defined by their diameter
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

A kind of flame-retardant wood-plastic, it is characterised in that the flame-retardant wood-plastic component is constituted by weight is:90 110 parts of polypropylene (PP), 50 70 parts of wood powder, 33 36 parts of expansion type flame retardant, 56 parts of synergist, 48 parts of compatilizer, 8 11 parts of coupling agent, CaCO310 15 parts, 8 12 parts of lubricant, 35 parts of plasticizer, 67 parts of toughener.Wood moulding of the present invention is aided with various auxiliary agents using wood powder, polypropylene, expansion type flame retardant as primary raw material, and the composite obtained by preparation has preferable fire retardation, and excellent in mechanical performance can be widely applied to interior decoration.

Description

A kind of flame-retardant wood-plastic and preparation method thereof
Technical field
The present invention relates to co-extrusion wood plastic composite production field, it is related to the production technology field of fire proofing, specifically Say it is a kind of anti-flammability wood plastic composite and preparation method thereof.
Background technology
Wood plastic composite is the material that a class covers that wide, product category is more, morphosis is various, with excellent resistance to Water and decay resistance and the advantages of can be recycled.It greatly embodies China's development " recycling economy " and builds " section The theory of about type society ", greatly develops this ep-type material, both beneficial to protecting forest resources and petroleum resources, can be again The large-scale comprehensive of waste or used plastics and abandoned biomass resource utilizes and opens up new road.Wood plastic composite is mainly used in knot The relatively low field of structure performance requirement, such as pallet, packing case, automotive trim base material, bed board, landscape garden industry, account for wood moulding The 75% of compound articles for use total amount.All it is combustible material yet with natural fiber and various polymer, therefore composite is very Easily burning, is unable to self-extinguishment after catching fire, belongs to inflammable class material, this makes it be restricted in application process, therefore wood moulding Composite needs to carry out flame retardant treatment when in use.
Expansion type flame retardant is the new type compound fire retardant that recent domestic is widely paid close attention to, and it is based on nitrogen, phosphorus, carbon Composition is wanted, without halogen, antimony oxide is not used yet for synergist, its system itself has synergy, meets following fire retardant Research and development direction.Material containing expansion type flame retardant can generate carbonaceous froth bed in burning, play heat-insulated, oxygen barrier, suppression Cigarette, it is antidrip the effects such as, with excellent fire resistance.
The content of the invention
It is an object of the invention to provide a kind of flame-retardant wood-plastic and preparation method thereof, the wood moulding is with wood powder and hybrid resin, swollen Swollen type fire retardant is primary raw material, is aided with various auxiliary agents, the composite obtained by preparation has preferable fire retardation, mechanical property Can be superior, it can be widely applied to interior decoration.
The present invention solves technical problem and adopted the following technical scheme that:
A kind of flame-retardant wood-plastic and preparation method thereof, it is characterised in that the flame-retardant wood-plastic component is constituted by weight is:It is poly- 90-110 parts of propylene (PP), 50-70 parts of wood powder, 33-36 parts of expansion type flame retardant, 5-6 parts of synergist, 4-8 parts of compatilizer, coupling 8-11 parts of agent, CaCO310-15 parts, 8-12 parts of lubricant, 3-5 parts of plasticizer, 6-7 parts of toughener.
Further, the resin is that PP is 90-110 parts
Further, PP resin meltings index is 3g/10min.
Further, the wood powder is that fineness is 150 mesh, is 50-70 parts.
Further, the expansion type flame retardant is APP (APP) and pentaerythrite (PER) with 2:1 mixture, be 33-36 parts
Further, the synergist is MgO, expansible graphite (EG), SiO2Mixture, is 5-6 parts
Further, (MgO), m (EG), m (SiO2) between proportioning be 1: 4: 3-1:6:5
Further, the compatilizer is that maleic acid matches somebody with somebody graft polypropylene (PP-g-MAH/St)
Further, the maleic acid matches somebody with somebody grafted polypropylene graft rate 2.5%
Further, the coupling agent is silane coupler or the one or more mixtures of aluminate coupling agent.
Further, the lubricant is Tissuemat E, zinc stearate with 3:2 ratio is obtained by mixing.
Further, the plasticizer is cedar wood oil.
Further, the toughener is dendroid haloflex.
A kind of flame-retardant wood-plastic preparation method, is carried out as follows:
1) by wood powder, CaCO3, resin, expansion type flame retardant, synergist, lubricant, compatilizer, coupling agent, plasticizer, Toughener, is sequentially added in mixer and stirs in order, and a component is added at intervals of two minutes, and mixer whole process stirring does not stop, All add and continued to stir 10 minutes after material;105 DEG C of mixing temperature, mixing speed is 750rpm;
2) material after above-mentioned stirring is placed into 6-8h under confined conditions, places 30-50 DEG C of temperature.
3) it will require that the premix 2) obtained is put into screw extruder, extrusion obtains flame-retardant wood-plastic composite material.Cone The screw speed of shape double screw extruder is 30r/min, and barrel temperature is 170 DEG C, and die temperature is 160-180 DEG C.
Compared with the prior art, the present invention has the beneficial effect that:
Wood plastic composite of the present invention, by adding synergist, increases the fire retardation of material.
The present invention is aided with various auxiliary agents using wood powder and hybrid resin, expansion type flame retardant as primary raw material, obtained by preparation Composite has preferable fire retardation, and excellent in mechanical performance can be widely applied to interior decoration.
Embodiment
Properties of product are detected:1) physical property and mechanical property, are detected by GB/T 17657-1999.2) fire protecting performance:Oxygen Index method, tests with reference to GB/T2406.1-2008 and GB/T2406.1-2009 correlation technique.Prepared by this method Wood plastic composite, its excellent physical properties are fire-retardant efficient, asepsis environment-protecting.Fire retardant performance reaches GB 8624-2006《Build Build material and product burns grading performance》Specified in fire-retardant C grades or B grade of requirement, physical and mechanical property reaches GB11718- 2009 regulations are required.
Embodiment 1:
Raw material:
60 parts of wood powder, CaCO310 parts, 100 parts of resin, 33 parts of expansion type flame retardant, 5 parts of synergist, 8 parts of lubricant, phase Hold 4.8 parts of agent, 8 parts of coupling agent, 4 parts of plasticizer, 6 parts of toughener
Wherein, the resin is that PP resin melting indexes are 3g/10min;The wood powder is that fineness is 150 mesh,;It is described swollen Swollen type fire retardant is APP (APP) and pentaerythrite (PER) with 2:1 mixture;;The synergist is MgO:Inflatable stone Ink:SiO2=1:5:5;The compatilizer is that maleic acid matches somebody with somebody graft polypropylene (PP-g-MAH/St), grafting rate 2.5%;The idol It is silane coupler or the one or more mixtures of aluminate coupling agent to join agent;;The lubricant is Tissuemat E, zinc stearate With 3:2 ratio mixing;The plasticizer is cedar wood oil;The toughener is dendroid haloflex.
Preparation method:
1) by wood powder, CaCO3, resin, expansion type flame retardant, synergist, lubricant, compatilizer, coupling agent, plasticizer, Toughener, is sequentially added in mixer and stirs in order, and a component is added at intervals of two minutes, and mixer whole process stirring does not stop, All add and continued to stir 10 minutes after material;105 DEG C of mixing temperature, mixing speed is 750rpm;
2) material after above-mentioned stirring is placed into 6h under confined conditions, places 40 DEG C of temperature.
3) it will require that the premix 2) obtained is put into screw extruder, extrusion obtains flame-retardant wood-plastic composite material.Cone The screw speed of shape double screw extruder is 30r/min, and barrel temperature is 170 DEG C, and die temperature is 160 DEG C.
Embodiment 2:
Raw material:
50 parts of wood powder, CaCO313 parts, 90 parts of resin, 35 parts of expansion type flame retardant, 5.5 parts of synergist, 10 parts of lubricant, 7 parts of compatilizer, 10 parts of coupling agent, 3 parts of plasticizer, 6.5 parts of toughener.
Wherein, the resin is that PP resin melting indexes are 3g/10min;The wood powder is that fineness is 150 mesh,;It is described swollen Swollen type fire retardant is APP (APP) and pentaerythrite (PER) with 2:1 mixture;;The synergist is MgO:Inflatable stone Ink:SiO2=1:4:3;The compatilizer is that maleic acid matches somebody with somebody graft polypropylene (PP-g-MAH/St), grafting rate 2.5%;The idol It is silane coupler or the one or more mixtures of aluminate coupling agent to join agent;The lubricant is Tissuemat E and zinc stearate With 3:2 ratio mixing;The plasticizer is cedar wood oil;The toughener is dendroid haloflex.
Preparation method:
1) by wood powder, CaCO3, resin, expansion type flame retardant, synergist, lubricant, compatilizer, coupling agent, plasticizer, Toughener, is sequentially added in mixer and stirs in order, and a component is added at intervals of two minutes, and mixer whole process stirring does not stop, All add and continued to stir 10 minutes after material;105 DEG C of mixing temperature, mixing speed is 750rpm;
2) material after above-mentioned stirring is placed into 7h under confined conditions, places 30 DEG C of temperature.
3) it will require that the premix 2) obtained is put into screw extruder, extrusion obtains flame-retardant wood-plastic composite material.Cone The screw speed of shape double screw extruder is 30r/min, and barrel temperature is 170 DEG C, and die temperature is 170 DEG C.
Embodiment 3:
Raw material:
70 parts of wood powder, CaCO315 parts, 110 parts of resin, 36 parts of expansion type flame retardant, 6 parts of synergist, 10 parts of lubricant, phase Hold 7 parts of agent, 10 parts of coupling agent, 3 parts of plasticizer, 7 parts of toughener.
Wherein, the resin is that PP resin melting indexes are 3g/10min;The wood powder is that fineness is 150 mesh,;It is described swollen Swollen type fire retardant is APP (APP) and pentaerythrite (PER) with 2:1 mixture;;The synergist is MgO:Inflatable stone Ink:SiO2=1:6:5;The compatilizer is that maleic acid matches somebody with somebody graft polypropylene (PP-g-MAH/St), grafting rate 2.5%;The idol It is silane coupler or the one or more mixtures of aluminate coupling agent to join agent;The lubricant is Tissuemat E and zinc stearate With 3:2 ratio mixing;The plasticizer is cedar wood oil;The toughener is dendroid haloflex.
Preparation method:
1) by wood powder, CaCO3, resin, expansion type flame retardant, synergist, lubricant, compatilizer, coupling agent, plasticizer, Toughener, is sequentially added in mixer and stirs in order, and a component is added at intervals of two minutes, and mixer whole process stirring does not stop, All add and continued to stir 10 minutes after material;105 DEG C of mixing temperature, mixing speed is 750rpm;
2) material after above-mentioned stirring is placed into 8h under confined conditions, places temperature 50 C.
3) it will require that the premix 2) obtained is put into screw extruder, extrusion obtains flame-retardant wood-plastic composite material.Cone The screw speed of shape double screw extruder is 30r/min, and barrel temperature is 170 DEG C, and die temperature is 180 DEG C.
The performance test results are as shown in the table:
Sample prepared by above-described embodiment 1,2,3 is tailored into the platelet of standard, then using oxygen index measurer HC-2 Oxygen index (OI) is carried out to flame-retardant wood-plastic material respectively with horizontal vertical burning analyzer CZF-3 and combustibility is determined, oxygen index (OI) 36%-60%, horizontal vertical combustibility is without catching fire, and cigarette is light, and flame retardant effect is good.
Sample prepared by above-described embodiment 1,2,3 tailors growth 110mm, width 10mm, thickness 2.5mm standard platelet, so Afterwards using tester for elongation, impact specimen machine, tensile figure, Impact Index, draw speed is 2mm/min.
Table 1
Fire retardant performance reaches GB 8624-2006《Construction material and product burns grading performance》Specified in fire-retardant C Level or B grades of requirements, physical and mechanical property reach the requirement of GB11718-2009 regulations.
In above example, unless otherwise noted, its component is prior art products purchased in market.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art It may be appreciated other embodiment.

Claims (7)

1. a kind of flame-retardant wood-plastic, it is characterised in that the flame-retardant wood-plastic component is constituted by weight is:Polypropylene (PP) 90-110 Part, 50-70 parts of wood powder, 33-36 parts of expansion type flame retardant, 5-6 parts of synergist, 4-8 parts of compatilizer, 8-11 parts of coupling agent, CaCO310-15 parts, 8-12 parts of lubricant, 3-5 parts of plasticizer, 6-7 parts of toughener.
2. a kind of flame-retardant wood-plastic according to claim 1, it is characterised in that the resin is that PP is 90-110 parts.
3. a kind of flame-retardant wood-plastic according to claim 1, it is characterised in that the PP resin meltings index is 3g/ 10min。
4. a kind of flame-retardant wood-plastic according to claim 1, it is characterised in that the expansion type flame retardant is APP And pentaerythrite (PER) is with 2 (APP):1 mixture.
5. a kind of flame-retardant wood-plastic according to claim 1, it is characterised in that the synergist is MgO, expansible graphite (EG), SiO2Mixture.
6. a kind of flame-retardant wood-plastic according to claim 1, it is characterised in that the lubricant is Tissuemat E, firmly Resin acid zinc is with 3:2 ratio is obtained by mixing.
7. a kind of flame-retardant wood-plastic preparation method, it is characterised in that carry out as follows:
1) by wood powder, CaCO3, resin, expansion type flame retardant, synergist, lubricant, compatilizer, coupling agent, plasticizer, toughness reinforcing Agent, sequentially adds in mixer and stirs in order, a component is added at intervals of two minutes, mixer whole process stirring does not stop, in whole Add and continued to stir 10 minutes after material;105 DEG C of mixing temperature, mixing speed is 750rpm;
2) material after above-mentioned stirring is placed into 6-8h under confined conditions, places 30-50 DEG C of temperature.
3) it will require that the premix 2) obtained is put into screw extruder, extrusion obtains flame-retardant wood-plastic composite material.Taper is double The screw speed of screw extruder is 30r/min, and barrel temperature is 170 DEG C, and die temperature is 160-180 DEG C.
CN201710516464.1A 2017-06-29 2017-06-29 A kind of flame-retardant wood-plastic and preparation method thereof Pending CN107189215A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710516464.1A CN107189215A (en) 2017-06-29 2017-06-29 A kind of flame-retardant wood-plastic and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710516464.1A CN107189215A (en) 2017-06-29 2017-06-29 A kind of flame-retardant wood-plastic and preparation method thereof

Publications (1)

Publication Number Publication Date
CN107189215A true CN107189215A (en) 2017-09-22

Family

ID=59881087

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710516464.1A Pending CN107189215A (en) 2017-06-29 2017-06-29 A kind of flame-retardant wood-plastic and preparation method thereof

Country Status (1)

Country Link
CN (1) CN107189215A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107488357A (en) * 2017-09-26 2017-12-19 苏州卫刚木包装制品有限公司 A kind of high resiliency flame-retardant wood-plastic packaging material and preparation method thereof
CN108384267A (en) * 2018-03-23 2018-08-10 金陵科技学院 A kind of Polypropylene wood-plastic composite material and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102181166A (en) * 2011-04-14 2011-09-14 浙江工商大学 High-efficiency flame retardant wood plastics composite and preparation method thereof
CN106084851A (en) * 2016-07-29 2016-11-09 安徽国风木塑科技有限公司 A kind of Wood plastic wall board and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102181166A (en) * 2011-04-14 2011-09-14 浙江工商大学 High-efficiency flame retardant wood plastics composite and preparation method thereof
CN106084851A (en) * 2016-07-29 2016-11-09 安徽国风木塑科技有限公司 A kind of Wood plastic wall board and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107488357A (en) * 2017-09-26 2017-12-19 苏州卫刚木包装制品有限公司 A kind of high resiliency flame-retardant wood-plastic packaging material and preparation method thereof
CN108384267A (en) * 2018-03-23 2018-08-10 金陵科技学院 A kind of Polypropylene wood-plastic composite material and preparation method thereof

Similar Documents

Publication Publication Date Title
CN103554626B (en) A kind of fretting map polyethylene based wood-plastic composite material and preparation method thereof
CN102617915B (en) Anti-mildew halogen-free flame-retardant smoke-suppression wood-plastic composite material and preparation method thereof
CN104327530B (en) Preparation method of flame-retardant and antistatic wood-plastic composite material
CN103113677B (en) Halogen-free flame-retardant anti-mildew composite and preparation method thereof
CN100419018C (en) Swell type combustion-proof glass fiber reinforced polypropylene composite material and its preparation method
CN105061829B (en) A kind of preparation method of aluminium hydroxide flame-retardant glue
CN102924939B (en) Waste tire rubber powder-filled plastic wood profile and preparation method thereof
CN104250388B (en) A kind of rubber-plastic foamed insulation material compositions of flame retardant type NBR/CPVC
CN106084851A (en) A kind of Wood plastic wall board and preparation method thereof
CN102604346A (en) Biodegradable polylactic acid-starch flame retardant composite material and preparation method thereof
CN107189215A (en) A kind of flame-retardant wood-plastic and preparation method thereof
CN103483676B (en) Halogen-free flameproof linear low density polyethylene material and preparation method thereof
CN107129702A (en) A kind of flame-retardant wood-plastic phase change composite material
CN102408642A (en) Flame retardant micro-foamed all plastic wood-like material and its preparation method
CN109593297A (en) A kind of co-extrusion halogen-free flame-retardant wood moulding material and preparation method thereof
CN107778638A (en) A kind of halogen-free flame-retardant ultra-high molecular weight polyvinyl material and preparation method thereof
CN103509313B (en) A kind of toughness reinforcing expanded material reclaiming ABS and preparation method thereof
CN103073775B (en) Preparation method for environment-friendly anti-flaming anti-static polyethylene pipeline
CN106750998A (en) A kind of novel flame-retardant PP foam material and preparation method thereof
CN101469082B (en) Halogen-free flame-retardant wood-plastic composite material and preparation thereof
CN101704982B (en) Flame-retardant high impact polystyrene compound and preparation method thereof
CN103059389A (en) Environment-friendly flame-retardant antistatic polyethylene pipeline
CN106497109A (en) A kind of poly styrene composite material and preparation method thereof
KR20110007703A (en) Polyethylene/wood flour/clay nanocomposite
CN103059390B (en) A kind of preparation method of halogen-free flameproof PE pipe

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20170922

RJ01 Rejection of invention patent application after publication