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SBS modified asphalt high-self-adhesive waterproof coiled material and its preparing process

A technology of self-adhesive waterproof membrane and modified asphalt, which is applied in the direction of building insulation materials, other chemical processes, building components, etc. Solve problems such as low bonding strength, achieve the effects of shortening production time, increasing uniformity, and good low-temperature flexibility

Inactive Publication Date: 2006-07-19
余建国
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of SBS modified asphalt high self-adhesive waterproof membrane and its production process, solve the technical problems of poor self-adhesive layer bonding performance and low bonding strength of self-adhesive waterproof membrane; also solve self-adhesive waterproof The coil production process takes a long time and the production cost is high

Method used

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  • SBS modified asphalt high-self-adhesive waterproof coiled material and its preparing process
  • SBS modified asphalt high-self-adhesive waterproof coiled material and its preparing process
  • SBS modified asphalt high-self-adhesive waterproof coiled material and its preparing process

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Embodiment Construction

[0042] 1. Selection of self-adhesive waterproof membrane material

[0043] 1. Selection of asphalt: According to the composition of crude oil and the content of paraffin, asphalt can be divided into paraffin-based asphalt, asphalt-based asphalt and mixed asphalt. Pitch-based pitch is petroleum pitch mainly composed of alicyclic hydrocarbons and aromatic hydrocarbons, that is, naphthenic pitch. In order to increase the stability of SBS dissolved in asphalt and the cohesiveness of the self-adhesive layer, cycloalkyl 90# or 100# alkyl asphalt is generally selected for self-adhesive coils. Its content is 35-40% of the total material usage.

[0044] 2. Selection of adhesive SBS: choose linear type, S / B=40 / 50, molecular weight 9-110,000, non-oil-extended SBS, namely: styrene-butadiene-styrene block copolymer with weak thermoplasticity body. Generally, SBS with a block ratio (S / B) of 40:60 is selected in summer, and SBS with a block ratio (S / B) of 30:70 is preferred in winter. SB...

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Abstract

The adhesive waterproof coil material consists of alkyl asphalt, adhesive SBS, plasticizer naphthene base oil, stuffing calcium carbonate and composite tackifier of coumarone resin and terpene resin. It has the composition of: alkyl asphalt 35-40 wt%, adhesive SBS 10-13 wt%, naphthene base oil 3-5 wt%, stuffing 39-42 wt% and composite tackifier 5-13 wt%. It has high adhesion strength, and the production process has low power consumption, short time and low cost.

Description

(1) Technical field [0001] The invention relates to a waterproof coiled material and its production process, in particular to a modified asphalt self-adhesive waterproof coiled material and its production process. (2) Background technology [0002] The existing modified asphalt self-adhesive waterproofing membrane generally contains the following components in its formula: 1) modified asphalt; 2) binder; 3) plasticizer; 4) filler, 5) other additives. Generally, natural binders such as rosin and modified rosin are added to the modified asphalt formula. The direct consequence is that the self-adhesive layer of the self-adhesive waterproof membrane has poor adhesion and low initial adhesion. The adhesiveness can only be increased by increasing the proportion of modified asphalt, which increases the cost and the adhesive effect is not good. The existing process for producing modified asphalt self-adhesive waterproofing membrane: the adhesive is treated with a colloid mill for 5...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08K3/26C09K3/18
Inventor 余建国宁宝柱李志敏樊永宁
Owner 余建国
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