CN109651703A - A kind of fire-retardant hollow plastic building template of superficial layer foaming - Google Patents
A kind of fire-retardant hollow plastic building template of superficial layer foaming Download PDFInfo
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- CN109651703A CN109651703A CN201811507291.8A CN201811507291A CN109651703A CN 109651703 A CN109651703 A CN 109651703A CN 201811507291 A CN201811507291 A CN 201811507291A CN 109651703 A CN109651703 A CN 109651703A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G9/00—Forming or shuttering elements for general use
- E04G9/10—Forming or shuttering elements for general use with additional peculiarities such as surface shaping, insulating or heating, permeability to water or air
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0085—Use of fibrous compounding ingredients
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/009—Use of pretreated compounding ingredients
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
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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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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2433/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2433/10—Homopolymers or copolymers of methacrylic acid esters
- C08J2433/12—Homopolymers or copolymers of methyl methacrylate
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/34—Silicon-containing compounds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/08—Ingredients agglomerated by treatment with a binding agent
Abstract
The invention belongs to building template technical fields, propose a kind of fire-retardant hollow plastic building template of superficial layer foaming, including core material and the foam surface layer for being coated on the core surfaces, the foam surface layer is grouped as by the group of following parts by weight: 90~120 parts of polypropylene of colour recycling, 5~25 parts of short carbon fiber, 5~30 parts of polyethylene octene elastomer, 10~60 parts of talcum powder, 0.02~0.5 part of crystallization nucleating agent, 1.5~10 parts of calcium stearate, 20~30 parts of silane coupling agent, 1.5~3 parts of polypropylene foaming agent, 1~5 part of polymethyl methacrylate, 3~5 parts of cagelike silsesquioxane, 0.2~10 part of 3- glycidyl ether oxypropyltrimethoxysilane, 5~10 parts of brominated epoxy resin, 1~3 part of polyethylene glycol, polyethyleneimine 0. 5~2 parts, 0.5~1.5 part of carboxymethyl cellulose.The present invention solve the problems, such as in the prior art plastic building template easily absorb heat deformation, flame retardant effect is poor, bending elastic modulus is poor.
Description
Technical field
The invention belongs to building template technical fields, are related to a kind of fire-retardant hollow plastic building template of superficial layer foaming.
Background technique
Building template is a kind of auxiliary material for being widely used in building trade, it is made by design requirement, makes coagulation scholar
Structure, component are shaped by defined position, geometric dimension, keep its correct position, and it is white heavy and act on to bear building template
External loads thereon.Traditional building template uses timber, steel.Since the scarcity of timber resources and people are to the guarantor of forest
Shield is so that plank sheathing has been gradually backed out.Steel form can satisfy the needs of building, but since steel and cement have good parent
And property, it corrodes in addition, steel form demoulds difficulty after construction, needs to coat one layer of release agent before construction every time, brings construction numerous
It is trivial.In addition, steel form in reuse easily by collision deformation so that the cement surface being poured very out-of-flatness, needs again
It is secondary to carry out smooth modification with cement, increase workload.A kind of recent also New Type Architecture Mode for using bamboo as raw material, it
That first bamboo is cut into slices to weave into curtain shape, then again adhesive laminate, be surface-treated.But due to the hydrophilic spy of bamboo itself
Sign, after a number of uses, waterproof layer is destroyed, and still cannot overcome deformation, damage due to caused by after dampness.
Plastic building template is that fibrous high strength plastics are that raw material is once extruded by technique in the molten state
The template of type, it has, and simple process, light weight, low in cost, stripping result is good, good water-retaining property, can reuse, easily transfer
The advantages that installation and it is popular, can replace traditional timber, steel building template, have vast potential for future development.
But existing plastic building template summer heat absorption is seriously, surface temperature has seriously affected material up to 80 DEG C or more
The performance of material, and after injection concrete, it can generate heat during concrete setting, thermal energy expands with heat and contract with cold after being forwarded to template
And rise and rise mould, cause metope out-of-flatness, meanwhile, flame retardant effect is poor, and bending elastic modulus is poor, influence using.
Based on the above reasons, there is an urgent need to provide one kind to reduce heat absorption, thermal insulation, anti-flammability, the plastics that elasticity is good
Building template.
Summary of the invention
The present invention proposes a kind of fire-retardant hollow plastic building template of superficial layer foaming, solves plastics in the prior art and builds
Building mould easily absorbs heat, and deformation, flame retardant effect be poor, problem of bending elastic modulus difference.
The technical scheme of the present invention is realized as follows:
A kind of fire-retardant hollow plastic building template of superficial layer foaming, including core material and the hair for being coated on the core surfaces
Steep superficial layer.
As further technical solution, the foam surface layer is grouped as by the group of following parts by weight:
90~120 parts of polypropylene of colour recycling, it is 5~25 parts of short carbon fiber, 5~30 parts of polyethylene octene elastomer, sliding
10~60 parts of mountain flour, 0.02~0.5 part of crystallization nucleating agent, 1.5~10 parts of calcium stearate, 20~30 parts of silane coupling agent, poly- third
1.5~3 parts of alkene foaming agent, 1~5 part of polymethyl methacrylate, 3~5 parts of cagelike silsesquioxane, 3- glycidol ether oxygroup
0.2~10 part of propyl trimethoxy silicane, 5~10 parts of brominated epoxy resin, 1~3 part of polyethylene glycol, polyethyleneimine 0.5~2
Part, 0.5~1.5 part of carboxymethyl cellulose.
As further technical solution, the core material is grouped as by the group of following parts by weight:
90~120 parts of polypropylene of black recycling, 15~25 parts of long carbon fiber, 4,4'- dimaleoyl imino diphenyl-methanes 2
~5 parts, 3~10 parts of ethylene propylene diene rubber-maleic anhydride grafts, 3~10 parts of polypropylene-maleic anhydride graft, stearic acid
1.5~10 parts of calcium, 20~30 parts of silane coupling agent, 5~10 parts of epoxy resin, 2~5 parts of poloxamer.
As further technical solution, the foam surface layer is grouped as by the group of following parts by weight:
100 parts of polypropylene of colour recycling, 15 parts of short carbon fiber, 15 parts of polyethylene octene elastomer, 35 parts of talcum powder, knot
0.3 part of brilliant nucleating agent, 6 parts of calcium stearate, 25 parts of silane coupling agent, 2.5 parts of polypropylene foaming agent, polymethyl methacrylate 3
Part, 4 parts of cagelike silsesquioxane, 5 parts of 3- glycidyl ether oxypropyltrimethoxysilane, 7 parts of brominated epoxy resin, poly- second
2 parts of glycol, 1.3 parts of polyethyleneimine, 1 part of carboxymethyl cellulose.
As further technical solution, the core material is grouped as by the group of following parts by weight:
100 parts of polypropylene of black recycling, 20 parts of long carbon fiber, 4,4'- 3 parts of dimaleoyl imino diphenyl-methanes, ternary
6 parts of EP rubbers-maleic anhydride grafts, 6 parts of polypropylene-maleic anhydride graft, 17 parts of calcium stearate, silane coupling agent 25
Part, 7 parts of epoxy resin, 3 parts of poloxamer.
As further technical solution, the partial size of the talcum powder 50% is 1~3 μm.
As further technical solution, the length of the short carbon fiber is 10~50 μm.
As further technical solution, the length of the long carbon fiber is 100~200 μm.
A kind of preparation method of the fire-retardant hollow plastic building template of superficial layer foaming, comprising the following steps:
S1, colour recycling polypropylene is heated to 165 DEG C, it is spare；
S2, brominated epoxy resin is heated to 70~80 DEG C, polyethylene glycol, polyethyleneimine, carboxymethyl cellulose is added,
Mixed emulsion is obtained after stirring 40min, mixed emulsion is coated to short carbon fiber surface, is dried, the short carbon fiber that obtains that treated
Dimension, it is spare；
S3, by polyethylene octene elastomer, talcum powder, calcium stearate, silane coupling agent, polymethyl methacrylate,
175 DEG C are heated to after cagelike silsesquioxane, the mixing of 3- glycidyl ether oxypropyltrimethoxysilane, obtains pre-composition
One, it is spare；
S4, black recycling polypropylene is heated to 165 DEG C, it is spare；
S5, epoxy resin is heated to 75~85 DEG C, poloxamer is added and adds water after mixing evenly, obtained after stirring 30min
To mixed emulsion, mixed emulsion is coated to long carbon fiber surface, is dried, the long carbon fiber that obtains that treated；
S6, by 4,4'- dimaleoyl imino diphenyl-methane, ethylene propylene diene rubber-maleic anhydride grafts, polypropylene-
185 DEG C are heated to after maleic anhydride grafts, calcium stearate, silane coupling agent mixing, obtains pre-composition two, it is spare；
S7, it the obtained pre-composition two of the step S5 long carbon fiber that obtains that treated, step S6 is added to step S5 obtains
To black recycling polypropylene in, extrusion molding obtains core material；
S8, it the obtained pre-composition one of the step S2 short carbon fiber that obtains that treated, step S3 is added to step S2 obtains
The colored recycling polypropylene arrived, is added crystallization nucleating agent, polypropylene foaming agent, is evenly distributed on step S7 after mixing and obtains
Core surfaces, send obtained to mold, foaming superficial layer foaming material；
The material of superficial layer that S9, step S8 are obtained foaming through cooling, cut after export, obtain the fire-retardant of superficial layer foaming
Hollow plastic building template.
As further technical solution, each component parts by weight in step S1~S3 are as follows:
90~120 parts of polypropylene of colour recycling, it is 5~25 parts of short carbon fiber, 5~30 parts of polyethylene octene elastomer, sliding
10~60 parts of mountain flour, 1.5~10 parts of calcium stearate, 20~30 parts of silane coupling agent, 1~5 part of polymethyl methacrylate, cage type
3~5 parts of silsesquioxane, 0.2~10 part of 3- glycidyl ether oxypropyltrimethoxysilane, brominated epoxy resin 5~10
Part, 1~3 part of polyethylene glycol, 0.5~2 part of polyethyleneimine, 0.5~1.5 part of carboxymethyl cellulose；
Each component parts by weight in step S4~S7 are as follows: 90~120 parts of polypropylene of black recycling, 15~25 parts of long carbon fiber,
4,4'- 2~5 parts of dimaleoyl imino diphenyl-methanes, 3~10 parts of ethylene propylene diene rubber-maleic anhydride grafts, polypropylene-
3~10 parts of maleic anhydride grafts, 1.5~10 parts of calcium stearate, 20~30 parts of silane coupling agent, 5~10 parts of epoxy resin, pool
2~5 parts of Luo Shamu；
Crystallization nucleating agent, polypropylene foaming agent parts by weight in step S8 are as follows: 0.02~0.5 part of crystallization nucleating agent, polypropylene
1.5~3 parts of foaming agent.
The present invention is using principle and has the beneficial effect that
1, in the present invention, the raw material and preparation method of specific proportion are all that inventor pays a large amount of painstaking effort researchs and obtains,
Each component in entire formula cooperates, and plays the role of being mutually improved and cooperate with, so that in the waterproof roll of preparation
Not only hardness is high, rigidity is good, intensity is high, the elasticity of flexure is good, good flame resistance for empty plastic building template, but also thermal insulation is good, surface
Thermal energy is not passed on, and is unlikely to deform, and material property is not influenced, practical.
2, in the present invention, by foaming to superficial layer, surface forms uniformly fine and closely woven micro-bubble, and thermal coefficient is low, energy
Enough transmitting for effectively preventing surface heat energy, influence the performance of building template by heat absorption, are unlikely to deform, therefore, enhance and build
The durability of building mould extends the service life of building template, solves the hollow plastic building template of the prior art and easily absorbs heat
The industry problems of deformation.
3, in the present invention, colored recycling polypropylene is selected on hollow plastic formwork surface, the absorption of sunlight can be reduced, into one
Step reduces surface heat absorption, and plastic formwork surface is avoided to absorb heat, and the temperature of plastic formwork is high and influences performance；Core material selects black to return
Pinching propylene, reduces production cost, and assembly is convenient.
4, in the present invention, brominated epoxy resin, polyethylene glycol, polyethyleneimine and carboxymethyl cellulose carry out carbon fiber
Surface treatment, improves dispersibility of the carbon fiber in melt polypropylene, carbon fiber forms three-dimensional order in melt polypropylene
Structure, so that the mechanical properties such as the tensile strength of plastic formwork, bending strength are improved, meanwhile, brominated epoxy resin molecule knot
Contain bromo element in structure, there is cagelike silsesquioxane and other component compatibilities in self-extinguishment, with formula, significantly improve plastics
The flame retardant property of template.
5, in the present invention, polymethyl methacrylate, cagelike silsesquioxane, 3- glycydoxy trimethoxy
Base silane cooperates, and forms Inorganic-Organic Hybrid Material, make the tensile strength of plastic formwork, bending strength, etc. mechanical properties
It improving, hardness is high, rigidity is good, meanwhile, layer of silicon dioxide film is formed when cagelike silsesquioxane is thermally decomposed, it can be effective
Continuing for oxidation process is prevented, with brominated epoxy resin in formula and other component compatibilities, significantly improves plastic formwork
Flame retardant property.
6, be added separately in black and colored recycling polypropylene by the different auxiliary agents of specific proportion, thus make core material and
Superficial layer meets template different parts to the difference of material requirements, be added in core material 4,4'- dimaleoyl imino diphenyl-methane,
Ethylene propylene diene rubber-maleic anhydride grafts, polypropylene-maleic anhydride graft etc. increase the toughness of core material, epoxy resin,
The addition of poloxamer improves the dispersibility of carbon fiber in the melt, keeps long carbon fiber and calcium stearate, silane coupling agent mutual
Compatibility enhances intensity of the core material as skeleton.
7, compared with plank sheathing in the prior art and bamboo slab rubber, hollow plastic building template any surface finish of the invention,
Demoulding is easy, and solves the problems, such as to be both needed to brushing release agent, hollow plastic building template weight of the invention before plank sheathing is applied
Amount is light, and recoverable value is high, and at low cost, the number of turnover reaches 50 times or more, can be greatly reduced while ensuring the construction quality
The problem of overall cost, it is low to efficiently solve the plank sheathing number of turnover, serious waste of resources.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
Existing hollow plastic building template, including core material and the material layer for being coated on core surfaces, such hollow plastic
Although material building template has good mechanical performance, still, due to building template in summer in use, heat absorption is serious, surface temperature
Degree is high, has seriously affected the performance of material, and after injection concrete, can generate heat during concrete setting, thermal energy is forwarded to
Occur expanding with heat and contract with cold and acting the mould that rises after template, causes metope out-of-flatness, meanwhile, the number of turnover is few, and template service life is short, this hair
Bright by foaming to the material layer for being coated on core surfaces, surface forms micro-bubble, forms the thermal insulation layer of foaming, is protecting
While demonstrate,proving building template mechanical strength, thermal insulation is good, influences the performance of building template by heat absorption, is unlikely to deform, and enhances
The durability of building template, the number of turnover is high, extends the service life of building template, solves and build mould in the prior art
Plate easily absorbs heat the industry problems of deformation.
Embodiment 1
A kind of fire-retardant hollow plastic building template of superficial layer foaming, including core material and the foaming table for being coated on core surfaces
Surface layer, foam surface layer are grouped as by the group of following parts by weight:
90 parts of polypropylene of colour recycling, 5 parts of short carbon fiber, 5 parts of polyethylene octene elastomer, 10 parts of talcum powder, crystallization
0.02 part of nucleating agent, 1.5 parts of calcium stearate, 20 parts of silane coupling agent, 1.5 parts of polypropylene foaming agent, polymethyl methacrylate 1
Part, 3 parts of cagelike silsesquioxane, 0.2 part of 3- glycidyl ether oxypropyltrimethoxysilane, 5 parts of brominated epoxy resin, gather
1 part of ethylene glycol, 0.5 part of polyethyleneimine, 0.5 part of carboxymethyl cellulose, wherein the partial size of talcum powder 50% is 1~3 μm, short
The length of carbon fiber is 10~50 μm；
Core material is grouped as by the group of following parts by weight:
90 parts of polypropylene of black recycling, 15 parts of long carbon fiber, 4,4'- 2 parts of dimaleoyl imino diphenyl-methanes, ternary second
3 parts of third rubber-maleic anhydride grafts, 3 parts of polypropylene-maleic anhydride graft, 15 parts of calcium stearate, silane coupling agent 20
Part, 5 parts of epoxy resin, 2 parts of poloxamer, wherein the length of long carbon fiber is 100~200 μm.
Preparation method includes the following steps:
S1, colour recycling polypropylene is heated to 165 DEG C, it is spare；
S2, brominated epoxy resin is heated to 70~80 DEG C, polyethylene glycol, polyethyleneimine, carboxymethyl cellulose is added,
Mixed emulsion is obtained after stirring 40min, mixed emulsion is coated to short carbon fiber surface, is dried, the short carbon fiber that obtains that treated
Dimension, it is spare；
S3, by polyethylene octene elastomer, talcum powder, calcium stearate, silane coupling agent, polymethyl methacrylate,
175 DEG C are heated to after cagelike silsesquioxane, the mixing of 3- glycidyl ether oxypropyltrimethoxysilane, obtains pre-composition
One, it is spare；
S4, black recycling polypropylene is heated to 165 DEG C, it is spare；
S5, epoxy resin is heated to 75~85 DEG C, poloxamer is added and adds water after mixing evenly, obtained after stirring 30min
To mixed emulsion, mixed emulsion is coated to long carbon fiber surface, is dried, the long carbon fiber that obtains that treated；
S6, by 4,4'- dimaleoyl imino diphenyl-methane, ethylene propylene diene rubber-maleic anhydride grafts, polypropylene-
185 DEG C are heated to after maleic anhydride grafts, calcium stearate, silane coupling agent mixing, obtains pre-composition two, it is spare；
S7, it the obtained pre-composition two of the step S5 long carbon fiber that obtains that treated, step S6 is added to step S5 obtains
To black recycling polypropylene in, extrusion molding obtains core material；
S8, it the obtained pre-composition one of the step S2 short carbon fiber that obtains that treated, step S3 is added to step S2 obtains
The colored recycling polypropylene arrived, is added crystallization nucleating agent, polypropylene foaming agent, is evenly distributed on step S7 after mixing and obtains
Core surfaces, send obtained to mold, foaming superficial layer foaming material；
The material of superficial layer that S9, step S8 are obtained foaming through cooling, cut after export, obtain the fire-retardant of superficial layer foaming
Hollow plastic building template.
Embodiment 2
A kind of fire-retardant hollow plastic building template of superficial layer foaming, including core material and the foaming table for being coated on core surfaces
Surface layer, foam surface layer are grouped as by the group of following parts by weight:
100 parts of polypropylene of colour recycling, 10 parts of short carbon fiber, 12 parts of polyethylene octene elastomer, 20 parts of talcum powder, knot
0.1 part of brilliant nucleating agent, 3 parts of calcium stearate, 23 parts of silane coupling agent, 2 parts of polypropylene foaming agent, 2 parts of polymethyl methacrylate,
3.5 parts of cagelike silsesquioxane, 2 parts of 3- glycidyl ether oxypropyltrimethoxysilane, 6 parts of brominated epoxy resin, poly- second
1.5 parts of glycol, 0.8 part of polyethyleneimine, 0.7 part of carboxymethyl cellulose, wherein the partial size of talcum powder 50% is 1~3 μm, short
The length of carbon fiber is 10~50 μm；
Core material is grouped as by the group of following parts by weight:
100 parts of polypropylene of black recycling, 18 parts of long carbon fiber, 4,4'- 2.5 parts of dimaleoyl imino diphenyl-methanes, three
5 parts of first EP rubbers-maleic anhydride grafts, 4 parts of polypropylene-maleic anhydride graft, 16 parts of calcium stearate, silane coupling agent
23 parts, 6 parts of epoxy resin, 2.5 parts of poloxamer, wherein the length of long carbon fiber is 100~200 μm.
Preparation method is the same as embodiment 1.
Embodiment 3
A kind of fire-retardant hollow plastic building template of superficial layer foaming, including core material and the foaming table for being coated on core surfaces
Surface layer, foam surface layer are grouped as by the group of following parts by weight:
100 parts of polypropylene of colour recycling, 15 parts of short carbon fiber, 15 parts of polyethylene octene elastomer, 35 parts of talcum powder, knot
0.3 part of brilliant nucleating agent, 6 parts of calcium stearate, 25 parts of silane coupling agent, 2.5 parts of polypropylene foaming agent, polymethyl methacrylate 3
Part, 4 parts of cagelike silsesquioxane, 5 parts of 3- glycidyl ether oxypropyltrimethoxysilane, 7 parts of brominated epoxy resin, poly- second
2 parts of glycol, 1.3 parts of polyethyleneimine, 1 part of carboxymethyl cellulose, wherein the partial size of talcum powder 50% is 1~3 μm, short carbon fiber
The length of dimension is 10~50 μm；
Core material is grouped as by the group of following parts by weight:
100 parts of polypropylene of black recycling, 20 parts of long carbon fiber, 4,4'- 3 parts of dimaleoyl imino diphenyl-methanes, ternary
6 parts of EP rubbers-maleic anhydride grafts, 6 parts of polypropylene-maleic anhydride graft, 17 parts of calcium stearate, silane coupling agent 25
Part, 7 parts of epoxy resin, 3 parts of poloxamer, wherein the length of long carbon fiber is 100~200 μm.
Preparation method is the same as embodiment 1.
Embodiment 4
A kind of fire-retardant hollow plastic building template of superficial layer foaming, including core material and the foaming table for being coated on core surfaces
Surface layer, foam surface layer are grouped as by the group of following parts by weight:
110 parts of polypropylene of colour recycling, 20 parts of short carbon fiber, 25 parts of polyethylene octene elastomer, 48 parts of talcum powder, knot
0.4 part of brilliant nucleating agent, 8 parts of calcium stearate, 28 parts of silane coupling agent, 2.8 parts of polypropylene foaming agent, polymethyl methacrylate 4
Part, 4.5 parts of cagelike silsesquioxane, 8 parts of 3- glycidyl ether oxypropyltrimethoxysilane, 9 parts of brominated epoxy resin, gather
2.5 parts of ethylene glycol, 1.5 parts of polyethyleneimine, 1.3 parts of carboxymethyl cellulose, wherein the partial size of talcum powder 50% is 1~3 μm,
The length of short carbon fiber is 10~50 μm；
Core material is grouped as by the group of following parts by weight:
110 parts of polypropylene of black recycling, 15~25 parts of long carbon fiber, 4,4'- dimaleoyl imino diphenyl-methanes 2~5
Part, 3~10 parts of ethylene propylene diene rubber-maleic anhydride grafts, 3~10 parts of polypropylene-maleic anhydride graft, calcium stearate
1.5~10 parts, 20~30 parts of silane coupling agent, 5~10 parts of epoxy resin, 2~5 parts of poloxamer, wherein the length of long carbon fiber
Degree is 100~200 μm.
Preparation method is the same as embodiment 1.
Embodiment 5
A kind of fire-retardant hollow plastic building template of superficial layer foaming, including core material and the foaming table for being coated on core surfaces
Surface layer, foam surface layer are grouped as by the group of following parts by weight:
120 parts of polypropylene of colour recycling, 25 parts of short carbon fiber, 30 parts of polyethylene octene elastomer, 60 parts of talcum powder, knot
0.5 part of brilliant nucleating agent, 10 parts of calcium stearate, 30 parts of silane coupling agent, 3 parts of polypropylene foaming agent, polymethyl methacrylate 5
Part, 5 parts of cagelike silsesquioxane, 10 parts of 3- glycidyl ether oxypropyltrimethoxysilane, 10 parts of brominated epoxy resin, gather
3 parts of ethylene glycol, 2 parts of polyethyleneimine, 1.5 parts of carboxymethyl cellulose, wherein the partial size of talcum powder 50% is 1~3 μm, short carbon
The length of fiber is 10~50 μm；
Core material is grouped as by the group of following parts by weight:
120 parts of polypropylene of black recycling, 25 parts of long carbon fiber, 4,4'- 5 parts of dimaleoyl imino diphenyl-methanes, ternary
10 parts of EP rubbers-maleic anhydride grafts, 10 parts of polypropylene-maleic anhydride graft, 20 parts of calcium stearate, silane coupling agent
30 parts, 10 parts of epoxy resin, 5 parts of poloxamer, wherein the length of long carbon fiber is 100~200 μm.
Preparation method is the same as embodiment 1.
Comparative example 1
A kind of hollow plastic building template, including core material and the superficial layer for being coated on core surfaces, superficial layer is by following heavy
The group of amount part is grouped as:
100 parts of polypropylene of colour recycling, 15 parts of short carbon fiber, 15 parts of polyethylene octene elastomer, 35 parts of talcum powder, firmly
6 parts of resin acid calcium, 25 parts of silane coupling agent, 3 parts of polymethyl methacrylate, 4 parts of cagelike silsesquioxane, 3- glycidyl ether oxygen
5 parts of base propyl trimethoxy silicane, 7 parts of brominated epoxy resin, 2 parts of polyethylene glycol, 1.3 parts of polyethyleneimine, carboxymethyl cellulose
1 part of element, wherein the partial size of talcum powder 50% is 1~3 μm, and the length of short carbon fiber is 10~50 μm；
Core material is grouped as by the group of following parts by weight:
100 parts of polypropylene of black recycling, 20 parts of long carbon fiber, 4,4'- 3 parts of dimaleoyl imino diphenyl-methanes, ternary
6 parts of EP rubbers-maleic anhydride grafts, 6 parts of polypropylene-maleic anhydride graft, 17 parts of calcium stearate, silane coupling agent 25
Part, 7 parts of epoxy resin, 3 parts of poloxamer, wherein the length of long carbon fiber is 100~200 μm.
It is corresponding to be changed to step S8: S8, the premix for obtaining the step S2 short carbon fiber that obtains that treated, step S3
Object one is added to the colored recycling polypropylene that step S2 is obtained, and is coated in the core surfaces that step S7 is obtained after mixing, squeezes
It forms out, obtains material after molding, remaining step is the same as embodiment 1.
Comparative example 2
A kind of hollow plastic building template, including core material and the superficial layer for being coated on core surfaces, superficial layer is by following heavy
The group of amount part is grouped as:
100 parts of polypropylene of colour recycling, 15 parts of short carbon fiber, 15 parts of polyethylene octene elastomer, 35 parts of talcum powder, knot
0.3 part of brilliant nucleating agent, 6 parts of calcium stearate, 25 parts of silane coupling agent, 2.5 parts of polypropylene foaming agent, polymethyl methacrylate 3
Part, 4 parts of cagelike silsesquioxane, 5 parts of 3- glycidyl ether oxypropyltrimethoxysilane, 7 parts of brominated epoxy resin, poly- second
2 parts of glycol, 1.3 parts of polyethyleneimine, 1 part of carboxymethyl cellulose, wherein the partial size of talcum powder 50% is 1~3 μm, short carbon fiber
The length of dimension is 10~50 μm；
Core material is grouped as by the group of following parts by weight:
100 parts of polypropylene of black recycling, 20 parts of long carbon fiber, 4,4'- 3 parts of dimaleoyl imino diphenyl-methanes, ternary
6 parts of EP rubbers-maleic anhydride grafts, 6 parts of polypropylene-maleic anhydride graft, 17 parts of calcium stearate, silane coupling agent 25
Part, 7 parts of epoxy resin, 3 parts of poloxamer, wherein the length of long carbon fiber is 100~200 μm.
Corresponding to delete step S2, remaining step is the same as embodiment 1.
Comparative example 3
A kind of hollow plastic building template, including core material and the superficial layer for being coated on core surfaces, superficial layer is by following heavy
The group of amount part is grouped as:
100 parts of polypropylene of colour recycling, 15 parts of short carbon fiber, 15 parts of polyethylene octene elastomer, 35 parts of talcum powder, knot
0.3 part of brilliant nucleating agent, 25 parts of silane coupling agent, 2.5 parts of polypropylene foaming agent, 7 parts of brominated epoxy resin, gathers by 6 parts of calcium stearate
2 parts of ethylene glycol, 1.3 parts of polyethyleneimine, 1 part of carboxymethyl cellulose, wherein the partial size of talcum powder 50% is 1~3 μm, short carbon
The length of fiber is 10~50 μm；
Core material is grouped as by the group of following parts by weight:
100 parts of polypropylene of black recycling, 20 parts of long carbon fiber, 4,4'- 3 parts of dimaleoyl imino diphenyl-methanes, ternary
6 parts of EP rubbers-maleic anhydride grafts, 6 parts of polypropylene-maleic anhydride graft, 17 parts of calcium stearate, silane coupling agent 25
Part, 7 parts of epoxy resin, 3 parts of poloxamer, wherein the length of long carbon fiber is 100~200 μm.
The corresponding polymethyl methacrylate by step S3, cagelike silsesquioxane, 3- glycidol ether oxygroup third
5 parts of base trimethoxy silane deletions, remaining step is the same as embodiment 1.
The hollow plastic building template prepared to Examples 1 to 5 and comparative example 1~3 performs the following performance tests:
1, tensile strength test: according to GB/T 1040.2-2006 " the measurement part 2 of plastic tensile performance: molding and
The experimental condition of extrusion molding plastics " specified in test method, the tensile strength of test sample；
2, bending strength is tested: according to test side specified in GB/T 9341-2008 " measurement of plastics bending property "
Method, the respectively bending modulus of the bending strength of test sample, sample in 23 DEG C of bending modulus and sample under 50 DEG C of illumination；
3, anti-flammability is tested: being tested according to specified in GB/T 8625-2005-T " Test method of difficultflammability for building materials "
Method, the flame retardant property of test sample；
4, impact resistance test: according to GB/T 1043.1-2008 " the measurement part 1 of plastics simple beam impact property:
Non-instrument impact test " specified in test method, the impact value of test sample；
5, hardness test: according to specified in GB/T 3398.2-2008 " plastic hardness measures part 2: Rockwell hardness "
Test method, the Rockwell hardness of test sample；
6, thermal insulation property is tested: according to GB/T 13475-2008 " the measurement calibration and protective hot of insulation steady state heat transfer property
Case method " specified in test method, the thermal conductivity of test sample.
Hollow plastic building template the performance test results prepared by Examples 1 to 5 and comparative example 1~3 see the table below:
Hollow plastic building template the performance test results prepared by 1 Examples 1 to 5 of table and comparative example 1~3
It can be seen from the data in Table 1 that hollow plastic building template prepared by the embodiment of the present invention 1~5 is in tensile strength,
Bending strength, hardness, anti-flammability etc. achieve great raising, meanwhile, thermal conductivity is substantially reduced, and is illustrated of the invention
Not only hardness is high, bending strength is high for hollow plastic building template, is unlikely to deform, but also hollow plastic building template of the invention is exhausted
Hot good, surface heat energy is not passed on, and material property is not influenced, and is solved the hollow plastic building template of the prior art and is easily absorbed heat deformation
Industry problems.Wherein, the formula of embodiment 3 and preparation method are the present invention more preferably technical solutions relatively, obtained hollow
Plastic building template performance is best.
Compared with comparative example 1, the thermal conductivity of the hollow plastic building template of Examples 1 to 5 preparation is significantly reduced, and is illustrated logical
It crosses and foams to superficial layer, can effectively prevent the transmitting of surface heat energy, influence the performance of building template by heat absorption, it is not variable
Therefore shape enhances the durability of building template, extend the service life of building template.
Compared with comparative example 2, the hollow plastic building template of Examples 1 to 5 preparation is in tensile strength, bending strength, punching
Hit intensity, anti-flammability etc. achieve great raising, explanation, on the one hand, brominated epoxy resin, polyethylene glycol, poly- second
Alkene imines and carboxymethyl cellulose are surface-treated carbon fiber, improve dispersibility of the carbon fiber in melt polypropylene, carbon
Fiber forms ordered 3 D structure in melt polypropylene, to make the mechanical property such as the tensile strength of plastic formwork, bending strength
It can improve, on the other hand, contain bromo element in brominated epoxy resin molecular structure, there are other components in self-extinguishment, with formula
Compatibility significantly improves the flame retardant property of plastic formwork.
Compared with comparative example 3, the hollow plastic building template of Examples 1 to 5 preparation is in tensile strength, bending strength, resistance
Combustion property etc. achieves great raising, explanation, on the one hand, polymethyl methacrylate, cagelike silsesquioxane, 3- contracting
Water glyceryl etheroxypropyltrimethoxysilane cooperates, and Inorganic-Organic Hybrid Material is formed, to make the drawing of plastic formwork
The raising of the mechanical properties such as intensity, bending strength is stretched, material hardness is high, rigidity is good, on the other hand, heated point of cagelike silsesquioxane
Layer of silicon dioxide film is formed when solution, can effectively prevent continuing for oxidation process, and component compatibilities other in formula,
Significantly improve the flame retardant property of plastic formwork.
Hollow plastic building template and plank sheathing in the prior art and bamboo slab rubber performance pair prepared by the embodiment of the present invention 3
Than as follows:
The hollow plastic building template of the invention of table 2 and plank sheathing in the prior art and bamboo slab rubber performance comparison
| Template performance | Hollow plastic building template | Plank sheathing | Bamboo slab rubber |
| Weight (kg/m2) | 8 | 10 | 12 |
| Recoverable value | 30% or more | It is not worth | It is not worth |
| The number of turnover (secondary) | 50-100 | 5 | 8 |
| Square meter amortizes (member/m2) | 1.5 | 8 | 7.8 |
It can be seen from the data in Table 2 that compared with plank sheathing in the prior art and bamboo slab rubber, hollow plastic of the invention
Building template is light-weight, and recoverable value is high, and at low cost, the number of turnover reaches 50 times or more, while ensuring the construction quality
While greatly reducing overall cost, the problem of it is low to efficiently solve the plank sheathing number of turnover, serious waste of resources.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of fire-retardant hollow plastic building template of superficial layer foaming, it is characterised in that: including core material and be coated on the core
The foam surface layer on material surface.
2. a kind of fire-retardant hollow plastic building template of superficial layer foaming according to claim 1, which is characterized in that described
Foam surface layer is grouped as by the group of following parts by weight:
90~120 parts of polypropylene of colour recycling, 5~25 parts of short carbon fiber, 5~30 parts of polyethylene octene elastomer, talcum powder
10~60 parts, 0.02~0.5 part of crystallization nucleating agent, 1.5~10 parts of calcium stearate, 20~30 parts of silane coupling agent, polypropylene hair
1.5~3 parts of infusion, 1~5 part of polymethyl methacrylate, 3~5 parts of cagelike silsesquioxane, 3- glycydoxy
0.2~10 part of trimethoxy silane, 5~10 parts of brominated epoxy resin, 1~3 part of polyethylene glycol, 0.5~2 part of polyethyleneimine,
0.5~1.5 part of carboxymethyl cellulose.
3. a kind of fire-retardant hollow plastic building template of superficial layer foaming according to claim 1 or 2, which is characterized in that
The core material is grouped as by the group of following parts by weight:
90~120 parts of polypropylene of black recycling, 15~25 parts of long carbon fiber, 4,4'- dimaleoyl imino diphenyl-methanes 2~5
Part, 3~10 parts of ethylene propylene diene rubber-maleic anhydride grafts, 3~10 parts of polypropylene-maleic anhydride graft, calcium stearate
1.5~10 parts, 20~30 parts of silane coupling agent, 5~10 parts of epoxy resin, 2~5 parts of poloxamer.
4. a kind of fire-retardant hollow plastic building template of superficial layer foaming according to claim 2, which is characterized in that described
Foam surface layer is grouped as by the group of following parts by weight:
100 parts of polypropylene of colour recycling, 15 parts of polyethylene octene elastomer, 35 parts of talcum powder, crystallizes by 15 parts of short carbon fiber
0.3 part of core agent, 6 parts of calcium stearate, 25 parts of silane coupling agent, 2.5 parts of polypropylene foaming agent, 3 parts of polymethyl methacrylate, cage
4 parts of shape silsesquioxane, 5 parts of 3- glycidyl ether oxypropyltrimethoxysilane, 7 parts of brominated epoxy resin, polyethylene glycol 2
Part, 1.3 parts of polyethyleneimine, 1 part of carboxymethyl cellulose.
5. a kind of fire-retardant hollow plastic building template of superficial layer foaming according to claim 3, which is characterized in that described
Core material is grouped as by the group of following parts by weight:
100 parts of polypropylene of black recycling, 20 parts of long carbon fiber, 4,4'- 3 parts of dimaleoyl imino diphenyl-methanes, EPDM
6 parts of rubber-maleic anhydride grafts, 6 parts of polypropylene-maleic anhydride graft, 17 parts of calcium stearate, 25 parts of silane coupling agent,
7 parts of epoxy resin, 3 parts of poloxamer.
6. a kind of fire-retardant hollow plastic building template of superficial layer foaming according to claim 2, which is characterized in that described
The partial size of talcum powder 50% is 1~3 μm.
7. a kind of fire-retardant hollow plastic building template of superficial layer foaming according to claim 2, which is characterized in that described
The length of short carbon fiber is 10~50 μm.
8. a kind of fire-retardant hollow plastic building template of superficial layer foaming according to claim 3, which is characterized in that described
The length of long carbon fiber is 100~200 μm.
9. a kind of preparation method of the fire-retardant hollow plastic building template of superficial layer foaming, which comprises the following steps:
S1, colour recycling polypropylene is heated to 165 DEG C, it is spare；
S2, brominated epoxy resin is heated to 70~80 DEG C, polyethylene glycol, polyethyleneimine, carboxymethyl cellulose, stirring is added
Mixed emulsion is obtained after 40min, mixed emulsion is coated to short carbon fiber surface, is dried, and the short carbon fiber that obtains that treated is standby
With；
S3, by polyethylene octene elastomer, talcum powder, calcium stearate, silane coupling agent, polymethyl methacrylate, cage type
175 DEG C are heated to after silsesquioxane, the mixing of 3- glycidyl ether oxypropyltrimethoxysilane, obtains pre-composition one, it is standby
With；
S4, black recycling polypropylene is heated to 165 DEG C, it is spare；
S5, epoxy resin is heated to 75~85 DEG C, poloxamer is added and adds water after mixing evenly, is mixed after stirring 30min
Lotion is closed, mixed emulsion is coated to long carbon fiber surface, is dried, the long carbon fiber that obtains that treated；
S6, by 4,4'- dimaleoyl imino diphenyl-methane, ethylene propylene diene rubber-maleic anhydride grafts, polypropylene-Malaysia
185 DEG C are heated to after acid anhydrides graft, calcium stearate, silane coupling agent mixing, obtains pre-composition two, it is spare；
S7, the obtained pre-composition two of the step S5 long carbon fiber that obtains that treated, step S6 is added to what step S5 was obtained
Black recycles in polypropylene, and extrusion molding obtains core material；
S8, the obtained pre-composition one of the step S2 short carbon fiber that obtains that treated, step S3 is added to what step S2 was obtained
Colour recycling polypropylene, is added crystallization nucleating agent, polypropylene foaming agent, is evenly distributed on the core that step S7 is obtained after mixing
The material that superficial layer foaming is obtained to mold, foaming is sent on material surface；
The material of superficial layer that S9, step S8 are obtained foaming through cooling, cut after export, obtain the fire-retardant hollow of superficial layer foaming
Plastic building template.
10. a kind of preparation method of the fire-retardant hollow plastic building template of superficial layer foaming according to claim 9, special
Sign is, each component parts by weight in step S1~S3 are as follows:
90~120 parts of polypropylene of colour recycling, 5~25 parts of short carbon fiber, 5~30 parts of polyethylene octene elastomer, talcum powder
10~60 parts, 1.5~10 parts of calcium stearate, 20~30 parts of silane coupling agent, 1~5 part of polymethyl methacrylate, cage type sesquialter
3~5 parts of siloxanes, 0.2~10 part of 3- glycidyl ether oxypropyltrimethoxysilane, 5~10 parts of brominated epoxy resin, gather
1~3 part of ethylene glycol, 0.5~2 part of polyethyleneimine, 0.5~1.5 part of carboxymethyl cellulose；
Each component parts by weight in step S4~S7 are as follows: 90~120 parts of polypropylene of black recycling, 15~25 parts of long carbon fiber, 4,4'-
2~5 parts of dimaleoyl imino diphenyl-methane, 3~10 parts of ethylene propylene diene rubber-maleic anhydride grafts, polypropylene-maleic
3~10 parts of acid anhydride graft, 1.5~10 parts of calcium stearate, 20~30 parts of silane coupling agent, 5~10 parts of epoxy resin, poloxamer
2~5 parts；
Crystallization nucleating agent, polypropylene foaming agent parts by weight in step S8 are as follows: 0.02~0.5 part of crystallization nucleating agent, polypropylene expanded
1.5~3 parts of agent.
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