CN109703146A - A kind of engineering plastic alloy composite plastic template and preparation method thereof - Google Patents
A kind of engineering plastic alloy composite plastic template and preparation method thereof Download PDFInfo
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- CN109703146A CN109703146A CN201811615389.5A CN201811615389A CN109703146A CN 109703146 A CN109703146 A CN 109703146A CN 201811615389 A CN201811615389 A CN 201811615389A CN 109703146 A CN109703146 A CN 109703146A
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Abstract
The present invention provides a kind of " engineering plastic alloy composite shutterings " and preparation method thereof.Foam polyvinyl chloride is obtained into foamed core material by foaming technique；Again by foam polyvinyl chloride core material and engineering plastic alloy coextrusion mold, directly obtaining by two surface layers is engineering plastics；The engineering plastic alloy layer and foam polyvinyl chloride sandwich layer directly merge, and the two contact interface forms alloy-layer；Without adhesive layer, it is the engineering plastic bed of material that plate of the invention, which ultimately forms two outer surfaces, is two engineering plastic alloy layers for being close to surface layer on the inside of surface layer；Sandwich layer is the five-layer structure of polyvinyl chloride foam layer.Engineering plastic alloy foaming plate of the invention, it is low to solve conventional panels intensity, temperature tolerance is poor, impact strength is low, the problem of poor fire, with stronger bending elastic modulus and higher impact strength, it is poor to solve the problems, such as that traditional architecture template rigidity toughness cannot synchronize raising, material temperature tolerance；Simple production process of the present invention, it is environmentally friendly.
Description
Technical field
The present invention relates to a kind of engineering plastic alloy composite plastic templates and preparation method thereof.
Background technique
The Chinese festiva scale of capital construction is 18,000,000,000,000, and wherein template is about 500,000,000,000, consumes 16,000,000,000 squares of wooden building moulds every year
Plate, cuts down 20,000,000 mu of forests year, however this part timber only passes through and reforms within 4 months building waste, the huge environmental protection of China
Under pressure, we join in new material industry, using can do building template with the plastics of circulation and stress.
In construction projects, form work engineering is the important component of concrete formation, as lead programmer, form work engineering
It is also the important content of detail design.The quality of form work engineering not only influences project progress, also determines reinforced concrete works
The quality of structure.The mainstream of building template is plank sheathing and glued wooden template currently on the market, and the glue used is containing formaldehyde
High pollution object；Plank number of turnover little waste resource, occupies the 97% of the market share.
Plastic formwork is a kind of environment protecting and power-saving pattern plate, convenient and efficient using plastic formwork, meet various construction need
The civilized construction requirement that, can be realized " four sections, one environmental protection ", therefore, before composite plastic building shuttering has wide application
Scape.
Plastics do not absorb water, and can accomplish clear water engineering；The characteristic of environment-protective circulating recycling, has exactly been bonded the big of Environmental Protection in China
Trend, therefore more than the 300 hundred million yuan of development & production plastic formworks of investment of China's dispersion over the past several decades.
Plastic formwork has the following problems on the market: product rigidity intensity low (bending elastic modulus), shrinkage are big, cause
Deformation and spillage, poor fire, fire incident take place frequently, product weatherability is poor and confrontation construction site complexity use environment performance
Difference, easy to break, material temperature tolerance difference causes concrete body ripple glaze occur, and it is limited to eventually lead to marketing.
Existing plastic building template in the prior art is mainly the following；Hard PVC foam plate, pp are hollow
Its performance parameter of plastic building template two major classes is as follows:
Performance comparison table
By comparing above, the composite shuttering properties of product of engineering plastics ABS alloy clamping PVC core layer of the invention are big
Amplitude is promoted, and especially bending elastic modulus and impact strength increases substantially, and shrinkage is small, good flame resistance, and temperature tolerance improves
For concrete temperature in the curing process close to 70 degree, the temperature tolerance of engineering plastic materials 90-110 degree can keep plate constant afterwards
It is soft.
Summary of the invention
The present invention provides a kind of " engineering plastic alloy composite shutterings " and preparation method thereof.By foaming technique by polychlorostyrene
Ethylene foams to obtain foamed core material；Again by composite molding in foam polyvinyl chloride core material and engineering plastic alloy coextruding die, directly
It obtains being engineering plastics by two surface layers, sandwich layer is the engineering plastic alloy composite plastic template of foam polyvinyl chloride sandwich layer；Institute
It states engineering plastic alloy layer and foam polyvinyl chloride sandwich layer directly merges, the two contact interface forms alloy-layer；Without binder
Layer, it is the engineering plastic bed of material that plate of the invention, which ultimately forms two outer surfaces, and being close to inside is two engineering plastic alloy layers, core
Layer is the five-layer structure of polyvinyl chloride foam layer.Engineering plastic alloy foaming plate of the invention, solves conventional panels intensity
Low, temperature tolerance is poor, and impact strength is low, the problem of poor fire, has stronger bending elastic modulus and stronger impact strength,
It is poor to solve the problems, such as that traditional architecture template rigidity toughness cannot synchronize raising, material temperature tolerance, and simple production process, it is right
It is environmental-friendly.
Further, inventor also found, is separately added into ABS and PVC material, is mentioned by two kinds of auxiliary agents of specific proportion
The combined strength bination of high two kinds of materials improves adhesion strength, and inner core material and surfacing is made to meet template different performance
Demand.Further, the auxiliary agent that specific components are added in the first auxiliary agent increases the toughness of inner core, and fiber can increase elasticity modulus
Reduce cost；The compatibility and weatherability for improving surface layer are added in second auxiliary agent, and in order to improve dispersibility and processing stream
The surface that 2-4- toluene-2,4-diisocyanate is capable of further modification fiber is added in dynamic property, to improve it in the material
Dispersibility keeps the quality of plastic formwork uniform.
Specific scheme is as follows:
A kind of engineering plastic alloy composite plastic template for plastic building template, the engineering plastic alloy compound die
Plate includes that two layers of engineering plastic flitch layer is surface layer, and polyvinyl chloride foam layer is sandwich layer, and the engineering plastic flitch layer clamping is described poly-
Vinyl chloride foamed core layer, it is characterised in that: the engineering plastic alloy composite shuttering, by by foam polyvinyl chloride core material and work
Engineering plastics two-shipper co-extrusion, direct combination are obtained by the composite construction of two layers of engineering plastic flitch layer clamping foam polyvinyl chloride sandwich layer,
By cooling and shaping, the as described engineering plastic alloy complex architectural template；
The engineering plastics of the engineering plastic alloy composite shuttering be extrusion-grade ABS engineering plastics or ABS PVC alloy
Engineering plastics；The ABS engineering plastics or ABS PVC alloy engineering plastics be virgin material or salvage material；
The foam polyvinyl chloride core material of the engineering plastic alloy composite shuttering is hard PVC；Its model polychlorostyrene
Ethylene SG-5 or SG-7, or the polyvinyl chloride mixing material using recycling secondary use；
There is contact between the two in compound extruded in the surface layer of the engineering plastic alloy composite shuttering and the direct mould of sandwich layer
Interface, contact interface be the not specific ABS of component PVC alloy-layer, and the contact interface do not contain binder.
Further, the ABS or ABS PVC alloy be suitble to extrusion molding extrusion grade material, further, institute
State ABS or ABS PVC alloy material be PC ABS or CPE ABS etc..
Further, the polyvinyl chloride hard PVC foam sandwich layer include: PVC, it is calcium carbonate stabilizer, in-lubricant, outer
Lubricant, ACR processing aid, foaming control agent, initiator, organic foaming agent and inorganic foaming agent；Further, the polychlorostyrene
Ethylene hard PVC foamed core layer includes, by mass component content meter: PVC100 parts, 8-50 parts of calcium carbonate powder, and organic foaming agent
0.2-1 parts, 0.1-1 parts of inorganic foaming agent, 3-5 parts of three salt lead sulfate of stabilizer, disalt press lead phosphate 1-3,1-3 parts of organotin,
0.5-2 parts of epoxidized soybean oil, 2 parts of epoxy-ester, ACR1-4 parts, G160.1-0.5 parts of highly-efficient lubricant, 1-4 parts of CPE, initiator
0.2-1 parts and 2-6 parts of foaming control agent.
Further, the polyvinyl chloride hard PVC foam sandwich layer further includes that mass percentage helps for the first of 1-9%
The quality group of agent, first auxiliary agent becomes:
The wood fibre that 2-5 millimeter of length or 40-100 parts of glass fibre
Further, the engineering plastics surface layer includes the second auxiliary agent that mass percentage is 2-6%, and described second helps
The quality group of agent becomes:
A method of the template is prepared, each raw material of engineering plastic flitch layer is put into high mixer mixing 15-20 together
Minute, it dries 75 degree 20 minutes, is squeezed out subsequently into the subsidiary engine (calling subsidiary engine in the following text) of double screw extruder；
High mixer is added in each raw material of polyvinyl chloride hard PVC foam sandwich layer, is mixed 20-40 minutes, then arrives
In conical double-screw host (calling host in the following text) extruder, melt is advanced to by institute by the screw rod of the conical double screw extruder
The runner that host changes is stated, enters mold into distributor；Engineering plastics and auxiliary agent are added in slave, the pair is then passed through
Melt is advanced to distributor by subsidiary engine screw rod, then enters mold cavity by the distributor, in the mold cavity, work
Engineering plastics alloy material is evenly dispersed to PVC foam material surface, and the material after the distributor processes enters mold mouth
Foaming completes the continuously shaped of the template by dragger by being continuously formed, cooling down and cutting into sizing version.
Further, the host is divided into five sections between the outlet of the head of the feed inlet and the extruder, wherein
The distribution of the temperature are as follows: the first 180 DEG C of bringing-up section；Second 170 DEG C of bringing-up section；170 DEG C of third bringing-up section；4th bringing-up section
160℃；5th 160 DEG C of bringing-up section；The slave is divided into five sections between the outlet of the head of the feed inlet and the extruder,
The wherein distribution of the temperature are as follows: the first 210 DEG C of bringing-up section；Second 200 DEG C of bringing-up section；180 DEG C of third bringing-up section；4th heating
170 DEG C of section；5th 170 DEG C of bringing-up section；The technological temperature of the main and auxiliaries can carry out micro- according to material and actual demand
It adjusts.
Further, the skin depth of the engineering plastic alloy composite shuttering by adjusting subsidiary engine and host rotating ratio
Value is adjusted, and the skin depth is 0.2-2 millimeters.
Further, the integral thickness of the engineering plastic alloy composite shuttering is 12-55 millimeters, preferably 15-16 milli
Rice or 18 millimeters.
The invention has the following beneficial effects:
1, by two-shipper co-extrusion that engineering plastics ABS and foaming PVC is compound, production technology is simplified, reduces and is produced into
This；
2, by the way that corresponding auxiliary agent is added in ABS and PVC, be further formed PVC ABS alloy interface improve ABS and
PVC interface binding power eliminates adhesive layer to improve the mechanical strength of combination, avoids interlayer caused by bending stress wrong
Position；
3, increase the elasticity modulus of inner core in the first auxiliary agent, the second auxiliary agent improves the intensity and weatherability on surface layer；
4, the glass fibre in inner core can be improved the binding force between two layers at interface as connection bridge, interior
Long glass fibres in core improves the bending strength of sandwich layer；
5,2, the 4- toluene-2,4-diisocyanate in auxiliary agent is added, the surface of glass fibre can be modified, further
Improve dispersibility of the glass fibre in plastic melt.
Composite plastic building shuttering is prepared in the present invention, has good mechanical performance, meets the requirement of construction material,
And simple process and low cost is easy to be mass produced.
Specific embodiment
The present invention will be described in more detail below by specific embodiment, but protection scope of the present invention not by
It is limited to embodiment.
Embodiment 1
High mixer will be put into together with ABS and the second auxiliary agent for accounting for its mass percent 6% to mix 20 minutes, it is 75 degree 20 dry
Minute, it is squeezed out subsequently into the subsidiary engine (calling subsidiary engine in the following text) of double screw extruder；
By SG-5100 parts of polyvinyl chloride, 40 parts of calcium carbonate powder, 1 part of organic foaming agent, 1 part of inorganic foaming agent, stabilizer
Three 5 parts of salt lead sulfates, disalt pressure lead phosphate 3,2 parts of epoxidized soybean oil, 2 parts of epoxy-ester, ACR4 parts, highly-efficient lubricant G160.5
Part, 4 parts of CPE, 6 parts of 1 part of initiator and foaming control agent and 9% the first auxiliary agent for accounting for above-mentioned raw materials total amount are added high mixed
Machine is mixed 40 minutes, then arrives in conical double-screw host (calling host in the following text) extruder, is squeezed by the conical double-screw
Melt is advanced to the runner that the host changes by the screw rod of machine out, enters mold into distributor；Engineering plastics and auxiliary agent are added
Enter into secondary double screw extruder, melt is then advanced to by distributor by the secondary subsidiary engine screw rod, then passes through described point
Orchestration enters mold cavity, and in the mold cavity, engineering plastic alloy material is evenly dispersed to PVC foam material table
Face, the material after the distributor processes enter the foaming of mold mouth, and into sizing version, sizing, cooling and cutting pass through traction
Machine completes the continuously shaped of the template.
The host is divided into five sections between the outlet of the head of the feed inlet and the extruder, wherein the temperature
Distribution are as follows: the first 180 DEG C of bringing-up section；Second 170 DEG C of bringing-up section；170 DEG C of third bringing-up section；4th 160 DEG C of bringing-up section；Slender acanthopanax
160 DEG C of hot arc；The slave is divided into five sections between the outlet of the head of the feed inlet and the extruder, wherein the temperature
Distribution are as follows: the first 210 DEG C of bringing-up section；Second 200 DEG C of bringing-up section；180 DEG C of third bringing-up section；4th 170 DEG C of bringing-up section；5th
170 DEG C of bringing-up section, the screw speed is 260r/min.
The quality group of first auxiliary agent becomes:
The quality group of second auxiliary agent becomes:
The integral thickness of the obtained engineering plastic alloy composite PVC foaming formwork is 15 millimeters, the skin depth
It is 0.5 millimeter.
Embodiment 2
High mixer will be put into together with ABS and the second auxiliary agent for accounting for its mass percent 2% to mix 15 minutes, it is 75 degree 20 dry
Minute, it is squeezed out subsequently into the subsidiary engine (calling subsidiary engine in the following text) of double screw extruder；
By SG-5100 parts of polyvinyl chloride, 28 parts of calcium carbonate powder, 0.2 part of organic foaming agent, 0.1 part of inorganic foaming agent, surely
Determine 3 parts of three salt lead sulfate of agent, disalt presses lead phosphate 1, and 0.5 part of epoxidized soybean oil, 2 parts of epoxy-ester, ACR1 parts, highly-efficient lubricant
G160.1 parts, CPE1 parts, 2 parts of 0.2 part of initiator and foaming control agent and 2% the first auxiliary agent for accounting for above-mentioned raw materials total amount
High mixer is added, is mixed 20 minutes, then arrives in conical double-screw host (calling host in the following text) extruder, pass through the taper
Melt is advanced to the runner that the host changes by the screw rod of double screw extruder, enters mold into distributor；By engineering plastics
It is added in secondary double screw extruder with auxiliary agent, melt is then advanced to by distributor by the secondary subsidiary engine screw rod, is then led to
It crosses the distributor and enters mold cavity, in the mold cavity, engineering plastic alloy material is evenly dispersed to PVC foam
Material surface, the material after the distributor processes enter the foaming of mold mouth, and into sizing version, sizing, cooling and cutting are led to
It crosses dragger and completes the continuously shaped of the template.
The host is divided into five sections between the outlet of the head of the feed inlet and the extruder, wherein the temperature
Distribution are as follows: the first 180 DEG C of bringing-up section；Second 175 DEG C of bringing-up section；172 DEG C of third bringing-up section；4th 165 DEG C of bringing-up section；Slender acanthopanax
160 DEG C of hot arc；The slave is divided into five sections between the outlet of the head of the feed inlet and the extruder, wherein the temperature
Distribution are as follows: the first 210 DEG C of bringing-up section；Second 200 DEG C of bringing-up section；180 DEG C of third bringing-up section；4th 170 DEG C of bringing-up section；5th
170 DEG C of bringing-up section, the screw speed is 260r/min.
The quality group of first auxiliary agent becomes:
The quality group of second auxiliary agent becomes:
The integral thickness of the obtained engineering plastic alloy composite PVC foaming formwork is 15 millimeters, the skin depth
It is 0.5 millimeter.
Embodiment 3
By CPE put into high mixer together with ABS and the second auxiliary agent for accounting for its mass percent 4% and mix 20 minutes, dry 75
Degree 20 minutes is squeezed out subsequently into the subsidiary engine (calling subsidiary engine in the following text) of double screw extruder；
By SG-7100 parts of polyvinyl chloride, 35 parts of calcium carbonate powder, 1 part of organic foaming agent, 1 part of inorganic foaming agent, stabilizer
Three 5 parts of salt lead sulfates, 2 parts of lead phosphate of disalt pressure, 1 part of epoxidized soybean oil, 2 parts of epoxy-ester, ACR2 parts, highly-efficient lubricant G160.5
Part, 3 parts of CPE, 4 parts of 1 part of initiator and foaming control agent and 5% the first auxiliary agent for accounting for above-mentioned raw materials total amount are added high mixed
Machine is mixed 40 minutes, then arrives in conical double-screw host (calling host in the following text) extruder, is squeezed by the conical double-screw
Melt is advanced to the runner that the host changes by the screw rod of machine out, enters mold into distributor；Engineering plastics and auxiliary agent are added
Enter into secondary double screw extruder, melt is then advanced to by distributor by the secondary subsidiary engine screw rod, then passes through described point
Orchestration enters mold cavity, and in the mold cavity, engineering plastic alloy material is evenly dispersed to PVC foam material table
Face, the material after the distributor processes enter the foaming of mold mouth, and into sizing version, sizing, cooling and cutting pass through traction
Machine completes the continuously shaped of the template.
The host is divided into five sections between the outlet of the head of the feed inlet and the extruder, wherein the temperature
Distribution are as follows: the first 180 DEG C of bringing-up section；Second 170 DEG C of bringing-up section；170 DEG C of third bringing-up section；4th 160 DEG C of bringing-up section；Slender acanthopanax
160 DEG C of hot arc；The slave is divided into five sections between the outlet of the head of the feed inlet and the extruder, wherein the temperature
Distribution are as follows: the first 210 DEG C of bringing-up section；Second 200 DEG C of bringing-up section；188 DEG C of third bringing-up section；4th 175 DEG C of bringing-up section；5th
170 DEG C of bringing-up section, the screw speed is 260r/min.
The quality group of first auxiliary agent becomes:
The quality group of second auxiliary agent becomes:
The integral thickness of the obtained engineering plastic alloy composite PVC foaming formwork is 15 millimeters, the skin depth
It is 0.5 millimeter.
Embodiment 4
By CPE put into high mixer together with ABS and the second auxiliary agent for accounting for its mass percent 4% and mix 20 minutes, dry 75
Degree 20 minutes is squeezed out subsequently into the subsidiary engine (calling subsidiary engine in the following text) of double screw extruder；
By SG-7100 parts of polyvinyl chloride, 40 parts of calcium carbonate powder, 1 part of organic foaming agent, 1 part of inorganic foaming agent, stabilizer
Three 5 parts of salt lead sulfates, 3 parts of lead phosphate of disalt pressure, 2 parts of epoxidized soybean oil, 2 parts of epoxy-ester, ACR4 parts, highly-efficient lubricant G160.5
Part, 4 parts of CPE, 6 parts of 1 part of initiator and foaming control agent and 6% the first auxiliary agent for accounting for above-mentioned raw materials total amount are added high mixed
Machine is mixed 40 minutes, then arrives in conical double-screw host (calling host in the following text) extruder, is squeezed by the conical double-screw
Melt is advanced to the runner that the host changes by the screw rod of machine out, enters mold into distributor；Engineering plastics and auxiliary agent are added
Enter into secondary double screw extruder, melt is then advanced to by distributor by the secondary subsidiary engine screw rod, then passes through described point
Orchestration enters mold cavity, and in the mold cavity, engineering plastic alloy material is evenly dispersed to PVC foam material table
Face, the material after the distributor processes enter the foaming of mold mouth, and into sizing version, sizing, cooling and cutting pass through traction
Machine completes the continuously shaped of the template.
The host is divided into five sections between the outlet of the head of the feed inlet and the extruder, wherein the temperature
Distribution are as follows: the first 180 DEG C of bringing-up section；Second 170 DEG C of bringing-up section；170 DEG C of third bringing-up section；4th 160 DEG C of bringing-up section；Slender acanthopanax
160 DEG C of hot arc；The slave is divided into five sections between the outlet of the head of the feed inlet and the extruder, wherein the temperature
Distribution are as follows: the first 210 DEG C of bringing-up section；Second 200 DEG C of bringing-up section；180 DEG C of third bringing-up section；4th 170 DEG C of bringing-up section；5th
170 DEG C of bringing-up section, the screw speed is 260r/min.
The quality group of first auxiliary agent becomes:
The quality group of second auxiliary agent becomes:
The integral thickness of the obtained engineering plastic alloy composite PVC foaming formwork is 15 millimeters, the skin depth
It is 0.5 millimeter.
Embodiment 5-8, technological parameter correspond respectively to embodiment 1-4, the difference is that, do not add in embodiment 5-8
Add the first auxiliary agent and the second auxiliary agent, other process conditions are identical with embodiment 1-4.
Comparative example
The PVC skinning template bought on the market, PVC co-extrusion template, the hollow template of Pp.
By comparing above, auxiliary agent of the invention is not added, coextruded layer associativity is slightly poor, and performance difference is not under product room temperature
Greatly.But product modulus is greatly lowered under conditions of 70 DEG C.Analysis the reason is as follows that: ABS is three component materials wherein AS group
It is point incompatible with PVC material, so ABS and PVC sandwich layer is the compatible material of out-phase, because of the contact position interface of sandwich layer and cortex
Dispersed associativity it is poor, cause cohesive force to reduce, at high temperature, the temperature tolerance of sandwich layer is poor, and material retractility becomes larger, and interface is viscous
Knot property difference causes material interface to generate sliding, therefore modulus is greatly lowered.
It is because of bad adhesion in the reduction of room temperature impact strength, material property advantage not can be good at complementation, cause to inhale
Receiving energy reduces.
Because the one side temperature of web contact cement is high, but the temperature in one layer of outside is low, compares under conditions of 70 degree
Temperature tolerance temperature spread is larger, therefore outside cortical material intensity is higher, keeps higher impact and elongation at break, so by force
It spends higher.Therefore first the second auxiliary agent of auxiliary agent of the invention is beneficial to properties of product raising.
Table 2
Compare description 1:
Had by the impact strength and bending elastic modulus of engineering plastic alloy co-extrusion PVC foam plate visible in table 1 big
Amplitude improves, and has reached harmonious raising, has optimized properties of product.
Compare description 2；
Bending elastic modulus under conditions of 70 DEG C keeps higher level.It has been even more than traditional PVC foam plate
With the performance under pp hollow board material room temperature.
Compare description 3:
Temperature tolerance, since the temperature tolerance of product subsurface improves, the product two resistance to temp effects relatively high in intensity
Good cortex is swept along down, and bending elastic modulus has obtained harmonious collocation at high temperature, changes traditional PVC foam plate, is impacted
Intensity is low, and temperature tolerance is poor, leads to the problem of bending elastic modulus is greatly lowered at high temperature, and changes the hollow serial mould of pp
Although plate impact strength is high, temperature tolerance is poor, the relatively low problem of whole modulus.
Compare description 4:
Product solves the problems, such as fire-retardant relative to pp.The effect that can be functioned well as from anti-flammability from breath of PVC.
Product provided by the invention obtains great raising, this hair in tensile strength, bending strength and bending modulus
Bright toughness of products is good, and intensity is high, is unlikely to deform, and board cost of the present invention is cheap, is suitable for various building boards.
It is other relatively to describe:
Associated material of the invention compares.The comparison tested by foregoing invention is added total in the material component of sandwich layer
The glass fibre or wood fibre of the 5%-15% of component can properly increase the elasticity of flexure high-modulus of product, but right
It is influenced in plate overall performance little.
Because low in core material impact strength itself, in the state that bending elastic modulus is high, continue the mould for improving product
Intensity is measured, overall performance is influenced little.But it can play the role of reducing at low cost.Between the calcium powder and fiber of filling very well
Complementarity, the impact property of product does not reduce, but the cost of material is low.Because sandwich layer softens face Integral bending under 70 degree of high temperature
Modulus in elasticity in bending reduces, and sliding is generated between fiber and PVC material, therefore cannot play fiber prehensile for the raising of intensity
Can, it has little significance.
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it would be recognized that above-mentioned
Description be not considered as limitation of the present invention.The functional aid similar with PVC material about engineering plastics ABS compared with
More, that the present invention focuses on point protection is the ABS of engineering plastics ABS and ABS alloy material and different performance component, PC
ABS, PVC ABS etc..Especially emphasize ABS PVC alloy material be more suitable for when accomplishing that impact property reaches specific numerical value
Plate of the invention.ABS PVC alloy material and PVC sandwich layer interfacial bonding property it is good, flame retardant effect is closed better than the present invention
Golden material fabrication process is complicated, so without the preferred present invention.
Although the present invention has done restriction to sandwich layer PVC material and has been typically chosen polyvinyl chloride SG-5 or SG-7, series, PVC
This hard material foaming technique is formulated also relative maturity to maturation, therefore core material of the invention does not limit uniquely,
But it is preferred that, the PVC material of market recycling, hard plate material, pipeline material plastic-steel door and window material, in its ash content filling proportion of measurement
Afterwards, can be used in mixed way mutually, filling components and ingredient are not limited to calcium powder, calcium powder talcum powder, mica powder clay powder or
Its mixture can reach requirement, to reach the purpose of the present invention.
Therefore the scope of the present invention is mainly limited to building board industry, and main performance is designed for building template.Weight
Point protection is the co-extrusion of engineering plastics ABS and PVC foam；The alloy material of same protection ability based on ABS, for example, PC ABS,
PVC ABS, CPE ABS, as long as POE its alloy material such as ABS can satisfy being total to for extruded material performance requirement and PVC foam
It squeezes, as protection category of the invention.
Claims (9)
1. a kind of engineering plastic alloy composite plastic template, the engineering plastic alloy composite shuttering includes two layers of engineering plastic flitch
Layer is surface layer, and polyvinyl chloride foam layer is sandwich layer, and the surface layer engineering plastic flitch layer clamps the foam polyvinyl chloride sandwich layer,
It is characterized in that:
The engineering plastic alloy composite shuttering, by will be in foam polyvinyl chloride sandwich layer and the engineering plastics two-shipper coextruding die
It is compound, it directly obtains by the composite construction of two layers of engineering plastic flitch layer clamping foam polyvinyl chloride sandwich layer, by cooling and shaping, i.e.,
For the engineering plastic alloy complex architectural template；
The engineering plastics of the engineering plastic alloy composite shuttering are as follows: extrusion-grade ABS engineering plastics or ABS PVC alloy work
Engineering plastics；The ABS engineering plastics or ABS PVC alloy engineering plastics are virgin material or the material that recycling recycling uses；
The foam polyvinyl chloride core material of the engineering plastic alloy composite shuttering is hard PVC；Its model polyvinyl chloride
SG-5 or SG-7, or the polyvinyl chloride mixing material using recycling secondary use；
There is contact circle between the two in compound extruded in the surface layer of the engineering plastic alloy composite shuttering and the direct mould of sandwich layer
Face, contact interface be the not specific ABS of component PVC alloy-layer, and the contact interface do not contain binder.
2. template as described in claim 1, the ABS or ABS PVC alloy be suitble to extrusion molding extrusion grade material,
Further, the ABS or ABS PVC alloy material be PV ABS or CPE ABS etc..
3. template as described in claim 1, the polyvinyl chloride hard PVC foam sandwich layer includes: PVC, calcium carbonate powder, steady
Determine agent, in-lubricant, external lubricant, ACR processing aid, foaming control agent, initiator, organic foaming agent and inorganic foaming agent；
Further, the polyvinyl chloride hard PVC foam sandwich layer includes mass component content meter: PVC100 parts, calcium carbonate powder 8-
50 parts, 0.2-1 parts of organic foaming agent, 0.1-1 parts of inorganic foaming agent, 3-5 parts of three salt lead sulfate of stabilizer, disalt presses lead phosphate 1-
3,1-3 parts of organotin, 0.5-2 parts of epoxidized soybean oil, 2 parts of epoxy-ester, ACR1-4 parts, 0.1-0.5 parts of highly-efficient lubricant G16,
1-4 parts of CPE, 0.2-1 parts of initiator and 2-6 parts of foaming control agent.
4. template as claimed in claim 3, the polyvinyl chloride hard PVC foam sandwich layer further includes that mass percentage is 1-
The quality group of 8% the first auxiliary agent, first auxiliary agent becomes:
。
5. template as described in claim 1, the engineering plastics surface layer includes that second that mass percentage is 2-6% helps
The quality group of agent, second auxiliary agent becomes:
。
6. a kind of method for preparing any one of claim 1-5 template, it is characterised in that: by the various of engineering plastic flitch layer
Raw material puts into high mixer mixing 15-20 minutes together, dry 75 degree 20 minutes, subsequently into double screw extruder subsidiary engine (under
Claim subsidiary engine) it squeezes out；
High mixer is added in each raw material of polyvinyl chloride hard PVC foam sandwich layer, is mixed 20-40 minutes, is then launched and arrive
(calling host in the following text) is squeezed out in conical double screw extruder, melt is advanced to by institute by the screw rod of the conical double screw extruder
The runner for stating host enters back into mold into distributor；Engineering plastics and auxiliary agent are added in secondary double screw extruder, then
Melt is advanced to distributor by the secondary subsidiary engine screw rod, mold cavity is then entered by the distributor, in the mould
In tool type chamber, engineering plastic alloy material is evenly dispersed to PVC foam material surface, the material after the distributor processes
It foams into mold mouth, into sizing version, sizing, cooling and cutting complete the continuously shaped of the template by dragger.
7. method as claimed in claim 6, the host divides between the outlet of the head of the feed inlet and the extruder
It is five sections, wherein the distribution of the temperature are as follows: the first 180 DEG C of bringing-up section；Second 170 DEG C of bringing-up section；170 DEG C of third bringing-up section；
4th 160 DEG C of bringing-up section；5th 160 DEG C of bringing-up section；The slave exports it in the head of the feed inlet and the extruder
Between be divided into five sections, wherein the distribution of the temperature are as follows: the first 210 DEG C of bringing-up section；Second 200 DEG C of bringing-up section；Third bringing-up section 180
℃；4th 170 DEG C of bringing-up section；5th 170 DEG C of bringing-up section；The technological temperature of the main and auxiliaries can be according to material and reality
Demand is finely adjusted.
8. method as claimed in claim 6, the skin depth of the engineering plastic alloy composite shuttering by adjusting subsidiary engine and
The revolving speed ratio of host is adjusted, and the skin depth is 0.2-2 millimeters.
9. method as claimed in claim 6, the integral thickness of the engineering plastic alloy composite shuttering is 12-55 millimeters, excellent
It is selected as 15-16 millimeters or 18 millimeters.
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| CN110733209A (en) * | 2019-09-23 | 2020-01-31 | 江苏远祥新材料有限公司 | engineering plastic and alloy composite plastic template and preparation method thereof |
| CN111016354A (en) * | 2019-10-08 | 2020-04-17 | 东莞市森蓝新材料科技有限公司 | Alloy plastic template and preparation method thereof |
| CN111531995A (en) * | 2020-04-27 | 2020-08-14 | 安徽中氟新材料科技有限公司 | High-strength light board and preparation method thereof |
| CN111660635A (en) * | 2020-04-27 | 2020-09-15 | 安徽中氟新材料科技有限公司 | Composite high-strength plastic template and preparation method thereof |
| CN114474934A (en) * | 2022-03-01 | 2022-05-13 | 合肥华聚微科新材料有限责任公司 | Supercritical foaming micro-nano hole lightweight composite board capable of being used for plastic uptake and preparation process thereof |
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Effective date of registration: 20221109 Address after: No. 106, Boling East Road, Shenzhou Economic Development Zone, Hengshui, Hebei 052800 Patentee after: SHENZHEN ENGINEERING PLASTIC CO.,LTD. Address before: 523000 No.15, Jiuxiang, Hebin East Road, Tangbian community, Liaobu Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN SENLAN NEW MATERIAL TECHNOLOGY Co.,Ltd. |