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High polymer modified asphalt, preparation method thereof and high polymer modified asphalt waterproof roll

A technology of polymer modification and modified asphalt, applied in textiles, papermaking, coatings, etc., can solve the problems of high heating temperature, poor material brittle point, poor swelling modifier effect, etc. Low temperature, simple and quick construction, low processing temperature

Inactive Publication Date: 2019-04-26
河南东方雨虹建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, most of the waterproofing membranes used in the market are modified asphalt waterproofing membranes for ordinary railway bridges and culverts, which mainly have the following problems: First, because the processing temperature of the swelling modifier needs to reach about 190 ° C, the special The modified bitumen layer of the modified bitumen waterproofing membrane has the problems of high heating temperature, high energy consumption and poor effect of swelling modifier in the production and preparation process; secondly, the smoke generated by the waterproofing membrane during hot-melt construction The amount is large and pollutes the environment; thirdly, the material brittle point of the modified asphalt waterproof membrane for ordinary railway bridges and culverts is not good, and the low temperature flexibility of the material can only reach about -30°C, which cannot meet the high-speed railway construction in severe cold areas such as the Harbin-Dalian Railway. application

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  • High polymer modified asphalt, preparation method thereof and high polymer modified asphalt waterproof roll
  • High polymer modified asphalt, preparation method thereof and high polymer modified asphalt waterproof roll
  • High polymer modified asphalt, preparation method thereof and high polymer modified asphalt waterproof roll

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preparation example Construction

[0031] The second aspect of the present invention provides the preparation method of above-mentioned high polymer modified asphalt, and this preparation method comprises:

[0032] (1) adding the SBS latex, SIS latex and amorphous α-olefin copolymer to the mixture of the melted smokeless asphalt and epoxy asphalt to swell to obtain the first mixture;

[0033] (2) Mix the first mixture, crosslinking agent, anti-aging agent and inorganic filler uniformly to obtain the polymer modified asphalt.

[0034] According to the present invention, preferably, step (2) is to dissolve the crosslinking agent and anti-aging agent in the first mixture, then add the inorganic filler and stir evenly to obtain the polymer modified asphalt .

[0035] According to the present invention, preferably, in step (1), the swelling temperature is 140-150°C;

[0036] In step (2), the mixing temperature is 150-160°C.

[0037] In the present invention, preferably, in step (1), the swelling time is 2-3 hours...

Embodiment 1

[0048] (1) Preparation of polymer modified asphalt

[0049] At 140-150°C, 15 parts by weight of SBS latex, 12 parts by weight of SIS latex and 6 parts by weight of APAO were added to a mixture of 55 parts by weight of smokeless net odor pitch and 7 parts of epoxy pitch, and then the temperature was maintained at 150°C, after the above modifier is completely swollen, add 3 parts by weight of JN850 triallyl isocyanurate and 3 parts by weight of oily UV absorber PR020-1 and keep the temperature at 155°C, wait until JN850 triallyl After the isocyanurate and UV absorber PR020-1 are completely dissolved, add 6 parts by weight of 400-mesh sericite powder and stir evenly to obtain polymer-modified asphalt.

[0050] (2) Preparation of polymer modified bitumen waterproof membrane

[0051] The polymer-modified asphalt is discharged at 180°C and coated on the upper and lower surfaces of the dipped and squeezed polyester base, respectively, to obtain the first surface asphalt coating laye...

Embodiment 2

[0053] (1) Preparation of polymer modified asphalt

[0054] At 140-150°C, 15 parts by weight of SBS latex, 12 parts by weight of SIS latex and 6 parts by weight of APAO were added to the mixture of 45 parts by weight of smokeless net taste asphalt and 5 parts of epoxy asphalt, and then the temperature was maintained at 150°C, after the above modifier is completely swollen, add 3 parts by weight of JN850 triallyl isocyanurate and 3 parts by weight of oily UV absorber PR020-1 and keep the temperature at 155°C, wait until JN850 triallyl After the isocyanurate and UV absorber PR020-1 are completely dissolved, 11 parts by weight of 200-mesh sericite powder are added and stirred evenly to obtain polymer-modified asphalt.

[0055] (2) Preparation of polymer modified bitumen waterproof membrane

[0056] The preparation method and the thickness of each layer of the polymer-modified asphalt waterproof membrane in this embodiment are the same as those in Embodiment 1.

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Abstract

The invention discloses high polymer modified asphalt, a preparation method thereof and a high polymer modified asphalt waterproof roll. The high polymer modified asphalt is prepared from the following raw materials in parts by weight: 45-60 parts of smokeless odor-removal asphalt, 5-7 parts of epoxy asphalt, 14-16 parts of SBS latex, 12-15 parts of SIS latex, 5-8 parts of an amorphous state alpha-olefin copolymer, 3-7 parts of a cross-linking agent, 3-6 parts of an anti-aging agent and 5-15 parts of an inorganic filler. The prepared high polymer modified asphalt is low in smoke and environment-friendly in the hot melting construction process and has good high temperature resistance, low temperature resistance, weather resistance and high elasticity and fatigue resistance; and the high polymer modified asphalt waterproof roll has excellent bonding force with outer-layer cement mortar and various bonding materials, is suitable for relevant bridge floor projects for railway constructionand is simple and rapid.

Description

technical field [0001] The invention belongs to the technical field of modified asphalt waterproof coiled material, and more specifically relates to a polymer modified asphalt, a preparation method thereof and a polymer modified asphalt waterproof coiled material. Background technique [0002] Asphalt waterproofing membrane refers to a roll material made of asphalt material, tire material and anti-sticking material spread on the surface, also known as linoleum. Commonly used in post-type waterproof layer. Bitumen waterproofing membrane refers to tire membrane and tireless membrane. Any roll-shaped material made of thick paper or glass cloth, asbestos cloth, cotton and linen fabrics and other tire materials impregnated with petroleum asphalt is called tire-shaped roll material; asbestos, rubber powder, etc. are mixed into the asphalt material, and after rolling The resulting roll material is called a rolled roll, that is, a tireless roll. With the wide application of aspha...

Claims

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Application Information

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IPC IPC(8): D06N3/00
CPCD06N3/0036D06N3/0061D06N3/0063D06N2203/08D06N2209/128D06N2209/142D06N2209/1635D06N2209/1692
Inventor 罗伟新刘金景吴士玮田凤兰
Owner 河南东方雨虹建筑材料有限公司
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