It is applied to water-soluble film, the system of water-soluble film that wet-laying overlays on waterproof roll
Preparation Method and waterproof roll
Technical field
The present invention relates to field of waterproof materials, a kind of be applied to the thin, water soluble that wet-laying overlays on waterproof roll
Film, the preparation method of water-soluble film and waterproof roll.
Background technology
Water-soluble film is mainly used in medicine, medicament, cement packing or for textile industry, specialty is for waterproof at present
The water-soluble film of coiled material and the product of specific aim exploitation, still the most targetedly production development.
Existing wet-laying overlays waterproof roll two kinds of versions, and one is one layer of isolating membrane, and isolating membrane is tear-off
Structure, in work progress, needs first to be torn by isolating membrane, sprinkles cement flour the most again, could subsequent construction.Another kind is surface
Covering sand, but coiled material own wt is big, cost of transportation increases, and carries load relatively big during construction, and this product bonding sizing material essence
Directly contact with the external world, make the aging quickening of sizing material, and can not really protect bonding sizing material to exempt from outside contamination.
The wet-laying employing present invention application overlays waterproof roll, it is possible to the use making up existing two kinds of product forms lacks
Fall into.
Summary of the invention
The present invention be directed to waterproof roll application and dissolve for this situation water soluble film one side, it is provided that side targetedly
Case.It is an object of the invention to provide a kind of water-soluble film, this water-soluble film can be in the situation touching concrete moisture
Lower rapid solution, it is ensured that concrete contacts and produce reactive bonding with bonding sizing material.Utilize the wet-laying manufactured by the present invention pre-
Paving waterproof roll is integral type form, during construction, is fixed by coiled material and can carry out follow-up concrete pouring construction.Reduce work
People constructs complexity, reduces the generation of building waste, and improves processing convenient transport.
Meanwhile, the present invention also provides for the preparation method of this water-soluble film and includes the waterproof volume of this water-soluble film
Material.
The technical scheme is that and a kind of be applied to the water-soluble film that wet-laying overlays on waterproof roll, by following heavy
Amount percent composition is prepared from:
PVA (polyvinyl alcohol) 60-85wt%, plasticizer: 1-5wt%, surfactant 5-10wt%, dispersant: 0.3-
3wt%, mineral pellet 5-40wt%, each component sum is 100wt%.
It is further preferred that be prepared from by following parts by weight of component:
PVA70-82wt%, plasticizer: 3-4wt%, surfactant 5.5-9wt%, dispersant: 0.3-0.5wt%, ore deposit
Thing pellet 7-21wt%.
Being applied in the water-soluble film that wet-laying overlays on waterproof roll above-mentioned, described PVA is partial alcoholysis type
PVA。
Be applied in the water-soluble film that wet-laying overlays on waterproof roll above-mentioned, described PVA model be 17-88,
20-88、24-88。
Being applied in the water-soluble film that wet-laying overlays on waterproof roll above-mentioned, described plasticizer is glycerol, gathers
Ethylene glycol 400, caprolactam, polyethylene glycol 200, ethylene glycol.
It is applied in the water-soluble film that wet-laying overlays on waterproof roll above-mentioned, described surfactant sodium dodecyl
Base sodium sulfate, dodecyl sodium sulfate, dodecylbenzene sodium sulfonate.
Being applied in the water-soluble film that wet-laying overlays on waterproof roll above-mentioned, described dispersant is water paint
Dispersant, for alkylbenzenesulfonate, polyacrylate, poly-methyl acrylate one or more.Such as sodium alkyl benzene sulfonate,
Sodium polyacrylate, sodium polymethacrylate.
Be applied in the water-soluble film that wet-laying overlays on waterproof roll above-mentioned, described mineral pellet be calcic,
The mineral pellet of silicon or aluminium element, such as: triple superphosphate, metakaolin, silicon dioxide, fine particle calcium carbonate one or more;Fine particle calcium carbonate is lightweight carbon
Acid calcium, triple superphosphate is ground calcium carbonate;Described mineral pellet particle diameter is between 100 mesh-2000 mesh.
It is applied in the water-soluble film that wet-laying overlays on waterproof roll above-mentioned, the thickness of described water-soluble film
For 0.1mm-0.3mm.Such as 0.2,0.3,0.1mm.
The invention also discloses the above-mentioned wet-laying that is applied to and overlay the preparation method of the water-soluble film on waterproof roll, tool
Body is: be added to the water unlatching stirring by PVA, is warming up to 80 DEG C-90 DEG C, after PVA is completely dissolved, adds plasticiser, surface
Activating agent, it is the 18wt%-20wt% hydrosol that solids level concentration is made in stirring.Then add dispersant and mineral pellet, stirring
And filter;Finally it is cast, obtains water-soluble film after drying.
Meanwhile, the invention also discloses a kind of waterproof roll, described waterproof roll includes from top to bottom setting gradually
Water soluble film layer as above, the adhesive glue bed of material, HDPE film or HDPE sheet material.
In above-mentioned waterproof roll, described water soluble film layer is dissolved for one side.
Beneficial effects of the present invention is as follows:
For the water-soluble film of the present invention, have employed PVA, plasticizer, surfactant, dispersant, mineral particle
Material is combined, and distributing homogeneity is good, and PVA effectively can be divided into many little dissolving regions by mineral pellet, can improve
The solute effect of film;Specifically, when contact with moisture to water-soluble film, mineral pellet is inorganic constituents, has very well with water
Phase absorption and wettability, promote water to contact with it, and guide moisture to enter inside film, this increase the molten of water-soluble film
Solving, even if dissolving for one side, its dissolution velocity is also quickly.
The mineral pellet of water-soluble film, in the solidification process of concrete, can participate in curing reaction, accelerates water
The decomposition of soluble film and dissolving.
For specifically, in use, carry out is the dissolving of a two process to the water-soluble film of the present invention
Process;Guarantee that water-soluble film has sufficiently fast dissolution velocity, make concrete contact with the bonding sizing material of coiled material, produce response type
Bonding.
PVA, plasticizer, surfactant, dispersant, the consumption of mineral pellet can improve the mechanical strength of film so that it is
Can be suitably used for, on existing coiled material production equipment, producing, promote on a large scale to enable.
For the waterproof roll of the present invention, have employed the water-soluble film of the present invention, instead of original antiseized every
After film or mineral pellet are covered on bonding sizing material when construction, concreting after above, be by one of thin film
The course of dissolution that two processes are carried out simultaneously.After being completely dissolved, mixed earth contacts with bonding sizing material, forms reactive bonding.Execute
Work is simple, shipping storage is convenient for production.
Accompanying drawing explanation
Fig. 1 is the structural representation of the waterproof roll of the embodiment of the present invention 1;
Fig. 2 is the test instrunment structure chart of the one side dissolving speed of the present invention;
Fig. 3 is the schematic diagram of the peel test of the present invention.
When Fig. 4 is the present invention and contact with moisture, moisture contacts situation with film.
Detailed description of the invention
Below in conjunction with detailed description of the invention, technical scheme is described in further detail, but do not constitute right
Any restriction of the present invention.
Specific embodiment 1:
Step 1: thin, water soluble film preparation: be added to the water unlatching stirring by PVA, slowly heats up, is warming up to 80 DEG C-90
DEG C, after PVA is completely dissolved, adds plasticizer, surfactant, stir, making concentration is that 18wt%-20wt% is water-soluble
Glue.Then add dispersant and mineral pellet, stir.Filter, by granule in the PVA not being completely dissolved, auxiliary agent and powder body
Bigger removing.
Step 2: film forming, hydrosol step 1 prepared uses the tape casting to produce, dry, film forming.
Step 3: load onto on coil production line by the water-soluble film that step 2 prepares, installs production method and traditional preventing
The applying method of the antiseized isolating membrane of water coiled material is consistent, substantially, i.e. the present invention is replaced antiseized isolating membrane, carries out producing i.e.
Can.According to the production line of water cooling, Colophonium drop temperature is turned down, and cooling water is closed.
Waterproof roll includes the adhesive glue bed of material, HDPE film HDPE sheet material, and the material that above-mentioned step 2 prepares is pasted in bonding
Compound layer surface.
Water soluble film layer 3 that the waterproof roll obtained includes from top to bottom setting gradually, the adhesive glue bed of material 2, HDPE film
HDPE sheet material 1, the thickness of water soluble film layer is 0.2mm, concrete such as Fig. 1.Be can be seen that by Fig. 4, when contact with moisture is to water-soluble
During property thin film, mineral pellet 4 is inorganic constituents, has good phase absorption and wettability with water 5, promotes water 5 to contact with it, and draws
Water guide divides inside entrance film, this increases the dissolving of water soluble film layer 3, even if dissolving for one side, its dissolution velocity is also very
Fast.
Each component is specific as follows:
PVA:78g (PVA24-88)
Plasticizer: 3.7g (glycerol)
Dispersant: 0.3g (polyacrylate)
Surfactant: 6g (dodecylbenzene sodium sulfonate)
Mineral pellet: 12g (fine particle calcium carbonate, 1000 mesh)
Embodiment 2
Method is substantially the same with embodiment 1, and different places is:
Each component is specific as follows:
PVA:82g (PVA24-88)
Plasticizer: 4g (glycerol)
Dispersant: 0.3g (poly-methyl acrylate)
Surfactant: 6g (sodium lauryl sulphate)
Mineral pellet: 7.7g (triple superphosphate, 2000 mesh)
Embodiment 3
Method is substantially the same with embodiment 1, and different places is:
Each component is specific as follows:
PVA:70g (PVA17-88)
Plasticizer: 3g (PEG400)
Dispersant: 0.4g (alkylbenzenesulfonate)
Surfactant: 5.6g (dodecyl sodium sulfate)
Mineral pellet: 21g (metakaolin, 1000 mesh)
Embodiment 4
Method is substantially the same with embodiment 1, and different places is:
Each component is specific as follows:
PVA:75g (PVA24-88)
Plasticizer: 3.3g (glycerol)
Dispersant: 0.3g (poly-methyl acrylate)
Surfactant: 9g (sodium lauryl sulphate)
Mineral pellet: 12.4g (triple superphosphate, 2000 mesh)
Comparative example 1
Step 1: thin, water soluble film preparation: be added to the water unlatching stirring by PVA, slowly heats up, is warming up to 80 DEG C-90
DEG C, after PVA is completely dissolved, adds plasticizer, surfactant, stir, making concentration is that 18wt%-20wt% is water-soluble
Glue.Filter, by removing bigger for granule in the PVA not being completely dissolved, auxiliary agent and powder body.
Step 2: film forming, hydrosol step 1 prepared uses the tape casting to produce, dry, film forming.
Step 3: load onto on coil production line by the water-soluble film that step 2 prepares, installs production method and traditional preventing
The applying method of the antiseized isolating membrane of water coiled material is consistent, substantially, i.e. the present invention is replaced antiseized isolating membrane, carries out producing i.e.
Can.According to the production line of water cooling, Colophonium drop temperature is turned down, and cooling water is closed.
Each component is specific as follows:
PVA:78g (PVA24-88)
Plasticizer: 3.7g (glycerol)
Surfactant: 6g (dodecylbenzene sodium sulfonate)
Application test:
1, existing still do not have the deliquescent method of testing of formal water-soluble film due to domestic, applies for the present invention, borrows
Mirror Zhuzhou Lan Hai packing Co., Ltd. company standard Q/CAZU001-2010 content, designs following experimental technique, with checking
The one side dissolving speed of the present invention.
Use for laboratory glass funnel, bell mouth diameter 70mm, ring indexing suction pipe 10ml, take according to embodiment 1 and contrast
Thickness prepared by the formula of example 1 is the circular specimen that the water-soluble film of 0.3mm is cut into diameter 110mm.
Experimental implementation is similar to laboratory filter operation, and its detection operation is such as Fig. 2.The water-soluble film sample cut
Carrying out folding (be first folded in half into semicircle, then be folded in half into sector) by the method for folding of filter paper, (one side is three layers to be then launched into taper
Film part, one side is monofilm part), it is ensured that funnel is dried anhydrous, the water-soluble film test specimens being converted into taper is put into leakage
Bucket makes its smooth inner wall of hopper.Accurately drawing the 10ml water yield with ring indexing suction pipe, the tip of dropper is placed in the top of trilamellar membrane,
Tip and the vertical dimension about 1cm of film.Overboard position is away from film top edge about 1cm.Timing being discharged water by dropper, drips to bell mouth
Go out first to drip stopping timing, draw the time.Thus express the one side dissolution velocity contacted with water of water-soluble film.
Testing through said method, the dissolution velocity of the water-soluble film of the embodiment of the present invention 1 is 8s-12s.
The dissolution velocity of the water-soluble film of the comparative example 1 of the present invention is 16-18s.
By above-mentioned detection it is found that use the formula of the water-soluble film with mineral pellet, its dissolution velocity
It is substantially better than the formula of the water-soluble film not having mineral pellet.
2, with section along waterproof Science and Technology Co., Ltd. product, wet-laying APF-3000 waterproof roll, as application verification.Will
Antiseized isolating membrane on product removes the preparation-obtained water-soluble film of the formula by the embodiment of the present invention 2, and (thickness is
0.3mm) stick, replace antiseized isolating membrane, then according to method described in GB/T23457-2009 carries out cement mortar glass stripping
Experiment.Experimentation is as follows:
According to 5.21 part in GB/T23457-2009, take passages as follows:
Coiled material and cement mortar peel strength test
Cement mortar mix ratio is: strength grade 42.5 Portland cement: medium sand: water=1;2;0.4
Cut the test sample of a size of 300mm × 50mm
Test specimen adhesive surface a size of (100 × 50) mm, goes out the adhesive of test specimen adhesive surface, test specimen is lain in mould
Tool bottom, adhesive surface upward, then by cement mortar mixture import mould, on a vibration table jolt ramming, thickness about 50mm (as
Fig. 3), place in (20 ± 2) DEG C
The 24h demoulding, in standard curing condition maintenance to 7d.
4h placed at (23 ± 2) DEG C by test specimen, is contained in by reinforced cement-mortar board on the fixture of testing machine one end, will be for bonding volume
Material one end overturns in 180 ° of fixtures being clipped in the testing machine other end, makes longitudinal axis and cupping machine and the axle of fixture of test specimen
Line overlaps, such as Fig. 3.Spacing jig is at least 100mm, is not subject to preload.Experiment is carried out in (23 ± 2) DEG C, draw speed
(100±10)mm/min.Record pulling force is until test specimen separates continuously.
Calculating mean peel strength by GB/T328.20-2007, unit is N/mm.
Test taken coiled material sample and should take from same volume coiled material product, then make coiled material experimental sample with water-soluble film
Test, and and contrast with the test result of volume the done sample of coiled material.
Carrying out cement mortar peel strength detection by above said content, acquired results is: thin, water soluble film coiled material sample
For 2.13N/mm, reel material sample is 2.10N/mm.Thus testing result is visible, and water-soluble film of the present invention is applied at coiled material
On, obtain the effect consistent with original product.After illustrating to apply water-soluble film of the present invention, coiled material performance can maintain original effect
And it is unaffected.
Above-described be only presently preferred embodiments of the present invention, all made in the range of the spirit and principles in the present invention appoint
What amendment, equivalent and improvement etc., should be included within the scope of the present invention.