CN110318259A - A kind of polymer modified bituminous waterproof sheet material and its production technology - Google Patents
A kind of polymer modified bituminous waterproof sheet material and its production technology Download PDFInfo
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- CN110318259A CN110318259A CN201910556603.2A CN201910556603A CN110318259A CN 110318259 A CN110318259 A CN 110318259A CN 201910556603 A CN201910556603 A CN 201910556603A CN 110318259 A CN110318259 A CN 110318259A
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Abstract
The invention belongs to waterproof material technical fields, propose a kind of polymer modified bituminous waterproof sheet material and its production technology, including tire base, the coated layer of modified pitch and separation layer, the raw material of the coated layer of modified pitch is grouped as by the group of following parts by weight: 43~55 parts of pitch, 3~5 parts of SBS, 4~6 parts of polypropylene, 2.5~4 parts of ethylene propylene diene rubber, two 0.7~1.5 part of Sodium lysinate of (lauramide glutamine), 3~5 parts of thio chitosan, 0.5~2 part of polyvinylpyrrolidone, 0.5~1.5 part of sodium alginate, 0.5~2 part of polyphosphoric acids, 0.1~1 part of zinc oxide, 5~13 parts of filler, 0.5~1 part of age resister, 0.5~1 part of ultraviolet absorber, tire base is polyester blank base, separation layer is fine sand separation layer.Through the above technical solutions, solving the problems, such as that the waterproofness of polymer modified bituminous waterproof sheet material, tear resistance be not high in the prior art.
Description
Technical field
The invention belongs to waterproof material technical field, it is related to a kind of polymer modified bituminous waterproof sheet material and its production work
Skill.
Background technique
Polymer modified bituminous waterproof sheet material makees coiled material dip-coat material using modified pitch.Common petroleum drip
Green material is easy the embrittlement that is hardened under cryogenic, and crack, response to temperature is strong, for a long time under by the action of ultraviolet light of solar irradiation, the summer
Season hot mastication so that pyrolysis trickling, expanding with heat and contract with cold repeatedly can cause the variation of pitch internal stress.It is comprehensive in oxygen and ozone etc.
Under effect, the chemical component in pitch constantly changes as a result, oil volatilization before this, the content of asphalt fat glue are reduced, and plasticity declines,
Brittleness increases, and cohesive force lowers, and generates and is cracked and aging.Traditional asphalt waterproof material is difficult to meet buildings waterproof durable
The needs of the time limit add a certain amount of modified-high polymer agent therefore, it is necessary to be modified to pitch in pitch, make pitch certainly
Intrinsic fragile under low temperature of body is split, and the pessimum that high temperature easily trickles is improved.
Polymer modified bituminous waterproof sheet material for railroad bridge bridge floor, highway bridge bridge floor, building roof, tunnel it is anti-
Water, it is therefore, more demanding to the waterproofness, extensibility and tear resistance of polymer modified bituminous waterproof sheet material.But current
Polymer modified bituminous waterproof sheet material waterproofness is bad, tearing, leakage phenomenon easily occurs after a period of use, using effect is not
It is good.
Therefore, it is necessary to design the good polymer modified asphalt waterproof of a kind of simple production process, waterproofness, tear resistance
Coating solves the above problems.
Summary of the invention
The present invention proposes a kind of polymer modified bituminous waterproof sheet material and its production technology, solves high poly- in the prior art
The not high problem of the waterproofness of object modified asphalt waterproof coiled material, tear resistance.
The technical scheme of the present invention is realized as follows:
A kind of polymer modified bituminous waterproof sheet material, including tire base, the coated layer of modified pitch and separation layer, the modification
The raw material of the coated layer of pitch is grouped as by the group of following parts by weight:
43~55 parts of pitch, 3~5 parts of SBS, 4~6 parts of polypropylene, 2.5~4 parts of ethylene propylene diene rubber, two (lauramides
Glutamine) 0.7~1.5 part of Sodium lysinate, 3~5 parts of thio chitosan, 0.5~2 part of polyvinylpyrrolidone, sodium alginate
It is 0.5~1.5 part, 0.5~2 part of polyphosphoric acids, 0.1~1 part of zinc oxide, 5~13 parts of filler, 0.5~1 part of age resister, ultraviolet
0.5~1 part of absorbent.
As further technical solution, the raw material of the coated layer of modified pitch is grouped as by the group of following parts by weight:
50 parts of pitch, 4 parts of SBS, 5 parts of polypropylene, 3.3 parts of ethylene propylene diene rubber, two (lauramide glutamine) rely ammonia
1.1 parts of sour sodium, 4 parts of thio chitosan, 1.3 parts of polyvinylpyrrolidone, 1 part of sodium alginate, 1.2 parts of polyphosphoric acids, zinc oxide
0.5 part, 8 parts of filler, 0.8 part of age resister, 0.7 part of ultraviolet absorber.
As further technical solution, the pitch is 90# pitch, and the polypropylene is random polypropylene.
As further technical solution, the filler is one of dicalcium powder, talcum powder, silica flour or a variety of any
The mixing of ratio, fineness are 400 mesh~2000 mesh.
As further technical solution, the age resister is N- phenyl-N`- cyclohexyl p-phenylenediamine, described ultraviolet
Absorbent is 2,4-DihydroxyBenzophenone.
As further technical solution, the tire base is polyester blank base, and the separation layer is fine sand separation layer.
As further technical solution, in the fine sand separation layer, the diameter of fine sand is 0.1~0.2mm.
A kind of production technology of polymer modified bituminous waterproof sheet material, comprising the following steps:
S1. according to the composition of raw materials of the above-mentioned coated layer of modified pitch, it is spare to weigh each component；
S2. pitch is preheated to 100~130 DEG C, the pitch after being preheated；
S3. SBS, polypropylene and ethylene propylene diene rubber are added in the pitch after the preheating obtained to step S2, is warming up to 180
~200 DEG C are stirred 3~4 hours, and just mixing is obtained；
S4. into the first mixing that step S3 is obtained be added two (lauramide glutamine) Sodium lysinates, thio chitosan,
Polyvinylpyrrolidone, sodium alginate, polyphosphoric acids, zinc oxide, 180~200 DEG C insulated and stirred 1 hour, obtain mixture；
S5. the obtained mixture of step S4 is crossed after colloid mill is ground 2~3 times and filler, age resister, UV absorption is added
Agent is stirred 1 hour at 170~190 DEG C, obtains modified pitch, is kept the temperature spare；
S6. at 160~180 DEG C, the modified pitch that step S5 is obtained is coated in the upper and lower surface of tire base, obtains two
Face is coated with the tire base of the coated layer of modified pitch；
S7. the upper and lower surface coating isolation of the tire base of the coated layer of modified pitch is coated in the two sides that step S6 is obtained
Layer, is formed, is cooled down, obtain a kind of polymer modified bituminous waterproof sheet material.
It the working principle of the invention and has the beneficial effect that
1, in the present invention, the solubles content of the polymer modified bituminous waterproof sheet material of preparation is higher, and solubles content is high
Up to 3454g/m2；Heat resistance is more preferable, 140 DEG C, 2h it is fricton-tight, trickling, drippage；Impermeability is more preferable, and impermeability is
0.3Map, 120min ne-leakage and anti-pierceability is good impermeable, tensile property is good, and maximum peak pulling force (vertically and horizontally) is up to 872N/
Cm, elongation percentage are up to 73.5%, and tear resistance is good, and tearing strength is up to 786N, illustrates high-polymer modified pitch of the invention
The high temperature resistance of waterproof roll is good, and tensile strength is high, and impermeability and tear resistance are good, substantially increases being applicable in for material
Range and service life, the effective waterproofness and tear-proof for solving polymer modified bituminous waterproof sheet material in the prior art
Property aspect existing defects the problem of, have a good application prospect.
2, in the present invention, random polypropylene, ethylene propylene diene rubber are added in the composition of raw materials of the coated layer of modified pitch, significantly
Improve the heat-resisting quantity and stretching, tear resistance of waterproof roll.Random polypropylene be blended with ethylene propylene diene rubber after in modification
In there is good intersolubility between reticular structure, with pitch in pitch, can by pitch-coating in the network architecture so that
Waterproof roll has good tensile strength and elongation percentage and tear resistance, meanwhile, random polypropylene is in modified pitch
Molecular structure is saturated mode, has good stability, this improves the heat resistances of waterproof roll.
3, in the present invention, two (lauramide glutamine) lysines are added in the composition of raw materials of the coated layer of modified pitch
Sodium, polyvinylpyrrolidone, sodium alginate significantly improve the waterproofness of waterproof roll.Two (lauramide glutamine) rely
Propylhomoserin sodium has double-hydrophilic, double hydrophobicitys, and surface tension is very low, can penetrate into pitch and SBS, with polyvinylpyrrolidine
Ketone, sodium alginate cooperate, and significantly improve the compatibility of SBS and pitch, meanwhile, two (lauramide glutamine) rely ammonia
Sour sodium and polyvinylpyrrolidone, sodium alginate have good film forming, form one layer of fine and close oil on waterproof roll surface
Film, so that waterproof roll has good waterproofness, it is waterproof in 0.3MPa, 120min, and impermeable, reality after perforation
Border using effect is good.
4, in the present invention, thio chitosan, polyphosphoric acids, zinc oxide are added in the composition of raw materials of the coated layer of modified pitch,
It cooperates with components other in formula, significantly improves heat resistance, tensile property and the tear resistance of waterproof roll.Sulfydryl shell
Glycan and matrix pitch and SBS have occurred cross-linking reaction, and polyphosphoric acids and zinc oxide cooperation, promote cross-linking reaction into
Row, so that the phase separation in the form of chemical bond of the boundary layer of SBS and pitch, boundary layer is more stable, and this improves waterproof rolls
Thermal stability, tensile property and tear resistance.
5, the present invention in, after first pitch is preheated in the preparation process of modified pitch again with SBS, random polypropylene, ternary
EP rubbers adds two (lauramide glutamine) Sodium lysinates, sulfydryl shell after mixing 3~4 hours at the beginning of 180~200 DEG C poly-
Sugar, polyvinylpyrrolidone, sodium alginate, polyphosphoric acids, zinc oxide grind 2~3 times by colloid mill after mixing and add again
Enter filler, N- phenyl-N`- cyclohexyl p-phenylenediamine, 2,4-DihydroxyBenzophenone, is stirred 1 hour at 170~190 DEG C, so that
What each component mixed in formula is more uniform, and boundary layer is more stable, and modified pitch is coated to polyester blank base upper and lower surface
Waterproof roll heat resistance, draftability, waterproofness and the tear resistance prepared afterwards is good, is suitble to promote the use of.
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.
Embodiment 1
A kind of polymer modified bituminous waterproof sheet material, including tire base, the coated layer of modified pitch and separation layer, modified pitch
The raw material of coated layer is grouped as by the group of following parts by weight:
43 parts of 90# pitch, 3 parts of SBS, 4 parts of random polypropylene, 2.5 parts of ethylene propylene diene rubber, two (lauramide glutamy
Amine) 0.7 part of Sodium lysinate, 3 parts of thio chitosan, 0.5 part of polyvinylpyrrolidone, 0.5 part of sodium alginate, polyphosphoric acids 0.5
Part, 0.1 part of zinc oxide, 5 parts of filler, 0.5 part of p-phenylenediamine of N- phenyl-N`- cyclohexyl, 0.5 part of 2,4-DihydroxyBenzophenone,
Wherein, filler is dicalcium powder, and fineness is 400~2000 mesh, and tire base is polyester blank base, separation layer be fine sand every
Absciss layer,
Its production technology the following steps are included:
S1. according to the composition of raw materials of the above-mentioned coated layer of modified pitch, it is spare to weigh each component；
S2. 90# pitch is preheated to 100~130 DEG C, the pitch after being preheated；
S3. SBS, random polypropylene and ethylene propylene diene rubber, heating are added in the pitch after the preheating obtained to step S2
It is stirred 3~4 hours to 180~200 DEG C, obtains just mixing；
S4. into the first mixing that step S3 is obtained be added two (lauramide glutamine) Sodium lysinates, thio chitosan,
Polyvinylpyrrolidone, sodium alginate, polyphosphoric acids, zinc oxide, 180~200 DEG C insulated and stirred 1 hour, obtain mixture；
S5. the obtained mixture of step S4 is crossed after colloid mill is ground 2~3 times and filler, N- phenyl-N`- cyclohexyl is added
P-phenylenediamine, 2,4-DihydroxyBenzophenone stir 1 hour at 170~190 DEG C, obtain modified pitch, keep the temperature spare；
S6. at 160~180 DEG C, the modified pitch that step S5 is obtained is coated in the upper and lower surface of tire base, obtains two
Face is coated with the tire base of the coated layer of modified pitch；
S7. fine sand is uniformly sprinkled upon the two sides that step S6 is obtained be coated with the coated layer of modified pitch tire base it is upper
Lower surface applies, then is formed, is cooled down, and a kind of polymer modified bituminous waterproof sheet material is obtained.
Embodiment 2
A kind of polymer modified bituminous waterproof sheet material, including tire base, the coated layer of modified pitch and separation layer, modified pitch
The raw material of coated layer is grouped as by the group of following parts by weight:
55 parts of 90# pitch, 5 parts of SBS, 6 parts of random polypropylene, 4 parts of ethylene propylene diene rubber, two (lauramide glutamy
Amine) 1.5 parts of Sodium lysinate, 5 parts of thio chitosan, 2 parts of polyvinylpyrrolidone, 1.5 parts of sodium alginate, 2 parts of polyphosphoric acids, oxygen
1 part of zinc of change, 13 parts of filler, 1 part of p-phenylenediamine of N- phenyl-N`- cyclohexyl, 1 part of 2,4-DihydroxyBenzophenone,
Wherein, filler is talcum powder, and fineness is 400~2000 mesh, and tire base is polyester blank base, separation layer be fine sand every
Absciss layer,
Its production technology is the same as embodiment 1.
Embodiment 3
A kind of polymer modified bituminous waterproof sheet material, including tire base, the coated layer of modified pitch and separation layer, modified pitch
The raw material of coated layer is grouped as by the group of following parts by weight:
48 parts of 90# pitch, 3.5 parts of SBS, 4.5 parts of random polypropylene, 3 parts of ethylene propylene diene rubber, two (lauramide paddy ammonia
Amide) 1 part of Sodium lysinate, 3.5 parts of thio chitosan, 1.1 parts of polyvinylpyrrolidone, 0.8 part of sodium alginate, polyphosphoric acids 1
Part, 0.4 part of zinc oxide, 7 parts of filler, 0.7 part of p-phenylenediamine of N- phenyl-N`- cyclohexyl, 0.6 part of 2,4-DihydroxyBenzophenone,
Wherein, filler is talcum powder, and fineness is 400~2000 mesh, and tire base is polyester blank base, separation layer be fine sand every
Absciss layer,
Its production technology is the same as embodiment 1.
Embodiment 4
A kind of polymer modified bituminous waterproof sheet material, including tire base, the coated layer of modified pitch and separation layer, modified pitch
The raw material of coated layer is grouped as by the group of following parts by weight:
52 parts of 90# pitch, 4.5 parts of SBS, 5.5 parts of random polypropylene, 3.5 parts of ethylene propylene diene rubber, two (lauramide paddy
Glutamine) 1.3 parts of Sodium lysinate, 4.5 parts of thio chitosan, 1.5 parts of polyvinylpyrrolidone, 1.2 parts of sodium alginate, poly phosphorus
1.5 parts of acid, 0.7 part of zinc oxide, 10 parts of filler, 0.9 part of p-phenylenediamine of N- phenyl-N`- cyclohexyl, 2,4-DihydroxyBenzophenone
0.8 part,
Wherein, filler is silica flour, and fineness is 400~2000 mesh, and tire base is polyester blank base, separation layer be fine sand every
Absciss layer,
Its production technology is the same as embodiment 1.
Embodiment 5
A kind of polymer modified bituminous waterproof sheet material, including tire base, the coated layer of modified pitch and separation layer, modified pitch
The raw material of coated layer is grouped as by the group of following parts by weight:
50 parts of 90# pitch, 4 parts of SBS, 5 parts of random polypropylene, 3.3 parts of ethylene propylene diene rubber, two (lauramide glutamy
Amine) 1.1 parts of Sodium lysinate, 4 parts of thio chitosan, 1.3 parts of polyvinylpyrrolidone, 1 part of sodium alginate, 1.2 parts of polyphosphoric acids,
0.5 part of zinc oxide, 8 parts of filler, 0.8 part of p-phenylenediamine of N- phenyl-N`- cyclohexyl, 0.7 part of 2,4-DihydroxyBenzophenone,
Wherein, filler is talcum powder, and fineness is 400~2000 mesh, and tire base is polyester blank base, separation layer be fine sand every
Absciss layer,
Its production technology is the same as embodiment 1.
Comparative example 1
A kind of polymer modified bituminous waterproof sheet material, including tire base, the coated layer of modified pitch and separation layer, modified pitch
The raw material of coated layer is grouped as by the group of following parts by weight:
50 parts of 90# pitch, 4 parts of SBS, two 1.1 parts of Sodium lysinate of (lauramide glutamine), 4 parts of thio chitosan,
1.3 parts of polyvinylpyrrolidone, 1 part of sodium alginate, 1.2 parts of polyphosphoric acids, 0.5 part of zinc oxide, 8 parts of filler, N- phenyl-N`-
0.8 part of cyclohexyl p-phenylenediamine, 0.7 part of 2,4-DihydroxyBenzophenone,
Wherein, filler is talcum powder, and fineness is 400~2000 mesh, and tire base is polyester blank base, separation layer be fine sand every
Absciss layer,
Corresponding in its production technology to delete random polypropylene, ethylene propylene diene rubber in step S2, remaining step is the same as real
Apply example 1.
Comparative example 2
A kind of polymer modified bituminous waterproof sheet material, including tire base, the coated layer of modified pitch and separation layer, modified pitch
The raw material of coated layer is grouped as by the group of following parts by weight:
It is 50 parts of 90# pitch, 4 parts of SBS, 5 parts of random polypropylene, 3.3 parts of ethylene propylene diene rubber, 4 parts of thio chitosan, more
1.2 parts of polyphosphoric acid, 0.5 part of zinc oxide, 8 parts of filler, 0.8 part of p-phenylenediamine of N- phenyl-N`- cyclohexyl, 2,4- dihydroxy hexichol
0.7 part of ketone,
Wherein, filler is talcum powder, and fineness is 400~2000 mesh, and tire base is polyester blank base, separation layer be fine sand every
Absciss layer,
It is corresponding by (lauramide glutamine) Sodium lysinate, polyvinylpyrrolidine two in step S4 in its production technology
Ketone, sodium alginate are deleted, remaining step is the same as embodiment 1.
Comparative example 3
A kind of polymer modified bituminous waterproof sheet material, including tire base, the coated layer of modified pitch and separation layer, modified pitch
The raw material of coated layer is grouped as by the group of following parts by weight:
50 parts of 90# pitch, 4 parts of SBS, 5 parts of random polypropylene, 3.3 parts of ethylene propylene diene rubber, two (lauramide glutamy
Amine) 1.1 parts of Sodium lysinate, 1.3 parts of polyvinylpyrrolidone, 1 part of sodium alginate, 8 parts of filler, N- phenyl-N`- cyclohexyl is to benzene
0.8 part of diamines, 0.7 part of 2,4-DihydroxyBenzophenone,
Wherein, filler is talcum powder, and fineness is 400~2000 mesh, and tire base is polyester blank base, separation layer be fine sand every
Absciss layer,
Corresponding in its production technology to delete thio chitosan, polyphosphoric acids, zinc oxide in step S4, remaining step is same
Embodiment 1.
Each component parts by weight are seen below in the composition of raw materials of the coated layer of modified pitch in Examples 1 to 5 and comparative example 1~3
Table:
Each component parts by weight in the composition of raw materials of the coated layer of modified pitch in 1 Examples 1 to 5 of table and comparative example 1~3
Note :-indicate no this item
Thickness, appearance inspection are carried out to polymer modified bituminous waterproof sheet material prepared by Examples 1 to 5 and comparative example 1~3
It looks into, inspection result is polymer modified bituminous waterproof sheet material surfacing, non-porous prepared by Examples 1 to 5 and comparative example 1~3
Hole lacks side and breach, and the sample color of fine sand is consistent with epigranular and is closely adhered to coiled material surface, and wound web material rolls closely,
End face is neat, and thickness >=4.5mm meets factory index.
The polymer modified bituminous waterproof sheet material prepared to Examples 1 to 5 and comparative example 1~3 performs the following performance tests:
1, heat resistance: according to GB/T 328.11-2007, " the 11st part of building waterproof coil test method: asphalt waterproofing is rolled up
Material heat resistance " specified in test method, the heat resistance of test sample；
2, solubles content: according to GB/T 328.26-2007, " the 26th part of building waterproof coil test method: pitch is anti-
Water coiled material solubles content (dip-coat material content) " specified in test method, the solubles content of test sample；
3, pulling force and elongation percentage: according to GB/T 328.8-2007, " the 8th part of building waterproof coil test method: pitch is anti-
Water coiled material tensile property " specified in test method, the maximum peak pulling force and elongation percentage of test sample,
4, low temperature flexibility: by " the 14th part of building waterproof coil test method: asphalt waterproofing volume GB/T 328.14-2007
Material low temperature flexibility " specified in test method, the low temperature flexibility of test sample；
5, impermeability: " the 10th part of building waterproof coil test method: pitch and high score GB/T 328.10-2007 is pressed
Sub- waterproof roll impermeability " specified in test method, the impermeability of test sample；
6, it anti-pierceability: by test method specified in GB/T 12953-2003 " chlorinated polyethylene waterproof roll ", uses
After punching instrument perforates sample, waterproof test is carried out to sample using perforation waterproof test device, the anti-of test sample is worn
Permeability；
7, tearing strength: by " the 18th part of building waterproof coil test method: asphalt waterproofing volume GB/T 328.18-2007
Material tear resistance (nail rod method) " specified in test method, the tearing strength of test sample；
Test result see the table below:
Polymer modified bituminous waterproof sheet material the performance test results prepared by 2 Examples 1 to 5 of table and comparative example 1~3
As can be seen from the above table, compared with waterproof roll prepared by comparative example 1~3, prepared by the embodiment of the present invention 1~5
Polymer modified bituminous waterproof sheet material solubles content it is higher, solubles content is up to 3454g/m2；Heat resistance is more preferable,
140 DEG C, 2h it is fricton-tight, trickling, drippage；Impermeability is more preferable, impermeability 0.3Map, 120min ne-leakage and anti-pierceability
Good impermeable, tensile property is good, and maximum peak pulling force (vertically and horizontally) is up to 872N/cm, and elongation percentage is up to 73.5%, tear resistance
Good, tearing strength is up to 786N, illustrates that the high temperature resistance of polymer modified bituminous waterproof sheet material of the invention is good, tensile strength
Height, impermeability and tear resistance are good, substantially increase the scope of application and service life of material, effective to solve now
Have in technology in terms of the waterproofness of polymer modified bituminous waterproof sheet material and tear resistance the problem of existing defects.Wherein, implement
The raw material proportioning and preparation method of example 5 are that more preferably technical solution, waterproof roll performance obtained are best relatively by the present invention.
Compared with waterproof roll prepared by embodiment 5, the heat resistance of waterproof roll prepared by comparative example 1, is torn at tensile strength
Resistance to spalling is poor, is not added with random polypropylene, ethylene propylene diene rubber in the composition of raw materials of the coated layer of the modified pitch of comparative example 1, says
Bright random polypropylene and ethylene propylene diene rubber cooperate, and significantly improve the heat-resisting quantity and stretching, tear resistance of waterproof roll, this
It is good in having between reticular structure, with pitch in modified pitch after being blended due to random polypropylene with ethylene propylene diene rubber
Intersolubility, can be by pitch-coating in the network architecture, so that waterproof roll has good tensile strength and elongation percentage
And tear resistance, meanwhile, random polypropylene molecular structure in modified pitch is saturated mode, there is good stability, because
This, improves the heat resistance of waterproof roll.
Compared with waterproof roll prepared by embodiment 5, the waterproofness of waterproof roll prepared by comparative example 2 is poor, comparative example 2
Be not added in the composition of raw materials of the coated layer of modified pitch two (lauramide glutamine) Sodium lysinates, polyvinylpyrrolidone,
Sodium alginate illustrates the addition of two (lauramide glutamine) Sodium lysinates, polyvinylpyrrolidone, sodium alginate, significantly
The waterproofness of waterproof roll is improved, this is because two (lauramide glutamine) Sodium lysinates tool double-hydrophilic, double hydrophobic
Property, surface tension is very low, can penetrate into pitch and SBS, cooperates with polyvinylpyrrolidone, sodium alginate, shows
It writes and improves the compatibility of SBS and pitch, meanwhile, two (lauramide glutamine) Sodium lysinates and polyvinylpyrrolidone,
Sodium alginate has good film forming, one layer of fine and close oil film is formed on waterproof roll surface, so that waterproof roll has
Have good waterproofness, it is waterproof in 0.3MPa, 120min, and perforation after it is impermeable, practical effect is good.
Compared with waterproof roll prepared by embodiment 5, the heat resistance of waterproof roll prepared by comparative example 3, draftability and anti-
Lancinating is poor, is not added with thio chitosan, polyphosphoric acids, zinc oxide in the composition of raw materials of the coated layer of the modified pitch of comparative example 3,
The addition for illustrating thio chitosan, polyphosphoric acids, zinc oxide cooperates with components other in formula, significantly improves waterproof
Heat resistance, tensile property and the tear resistance of coiled material, this is because crosslinking has occurred instead in thio chitosan and matrix pitch and SBS
It answers, and polyphosphoric acids and zinc oxide cooperation, the progress of cross-linking reaction is promoted, so that the boundary layer of SBS and pitch is with chemical bond
Form phase separation, boundary layer is more stable, and this improves the thermal stability of waterproof roll, tensile property and tear resistances.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of polymer modified bituminous waterproof sheet material, including tire base, the coated layer of modified pitch and separation layer, feature exist
In the raw material of the coated layer of modified pitch is grouped as by the group of following parts by weight:
43~55 parts of pitch, 3~5 parts of SBS, 4~6 parts of polypropylene, 2.5~4 parts of ethylene propylene diene rubber, two (lauramide paddy ammonia
Amide) 0.7~1.5 part of Sodium lysinate, 3~5 parts of thio chitosan, 0.5~2 part of polyvinylpyrrolidone, sodium alginate 0.5~
1.5 parts, 0.5~2 part of polyphosphoric acids, 0.1~1 part of zinc oxide, 5~13 parts of filler, 0.5~1 part of age resister, ultraviolet absorber
0.5~1 part.
2. a kind of polymer modified bituminous waterproof sheet material according to claim 1, which is characterized in that the modified pitch applies
The raw material of stain layer is grouped as by the group of following parts by weight:
50 parts of pitch, 4 parts of SBS, 5 parts of polypropylene, 3.3 parts of ethylene propylene diene rubber, two (lauramide glutamine) Sodium lysinates
1.1 parts, 4 parts of thio chitosan, 1.3 parts of polyvinylpyrrolidone, 1 part of sodium alginate, 1.2 parts of polyphosphoric acids, zinc oxide 0.5
Part, 8 parts of filler, 0.8 part of age resister, 0.7 part of ultraviolet absorber.
3. a kind of polymer modified bituminous waterproof sheet material according to claim 1, which is characterized in that the pitch is 90#
Pitch, the polypropylene are random polypropylene.
4. a kind of polymer modified bituminous waterproof sheet material according to claim 1, which is characterized in that the filler is coarse whiting
The mixing of one of powder, talcum powder, silica flour or a variety of arbitrary proportions, fineness are 400 mesh~2000 mesh.
5. a kind of polymer modified bituminous waterproof sheet material according to claim 1, which is characterized in that the age resister is
N- phenyl-N`- cyclohexyl p-phenylenediamine, the ultraviolet absorber are 2,4-DihydroxyBenzophenone.
6. a kind of polymer modified bituminous waterproof sheet material according to claim 1, which is characterized in that the tire base is poly-
Zhi Tai base, the separation layer are fine sand separation layer.
7. a kind of polymer modified bituminous waterproof sheet material according to claim 6, which is characterized in that the fine sand separation layer
In, the diameter of fine sand is 0.1~0.2mm.
8. a kind of production technology of polymer modified bituminous waterproof sheet material, which comprises the following steps:
S1. according to the composition of raw materials of the coated layer of modified pitch described in claim 1~7 any one, it is spare to weigh each component；
S2. pitch is preheated to 100~130 DEG C, the pitch after being preheated；
S3. SBS, polypropylene and ethylene propylene diene rubber are added in the pitch after the preheating obtained to step S2, it is warming up to 180~
200 DEG C are stirred 3~4 hours, and just mixing is obtained；
S4. two (lauramide glutamine) Sodium lysinates, thio chitosan, poly- second are added into the first mixing that step S3 is obtained
Alkene pyrrolidone, sodium alginate, polyphosphoric acids, zinc oxide, 180~200 DEG C insulated and stirred 1 hour, obtain mixture；
S5. the obtained mixture of step S4 is crossed after colloid mill is ground 2~3 times and filler, age resister, ultraviolet absorber is added,
It is stirred 1 hour at 170~190 DEG C, obtains modified pitch, kept the temperature spare；
S6. at 160~180 DEG C, the modified pitch that step S5 is obtained is coated in the upper and lower surface of tire base, and it is equal to obtain two sides
Tire base coated with the coated layer of modified pitch；
S7. the upper and lower surface coating separation layer of the tire base of the coated layer of modified pitch is coated in the two sides that step S6 is obtained,
It is formed, cooled down, obtain a kind of polymer modified bituminous waterproof sheet material.
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