Shanghai Daoqin Plastics Co., Ltd.

         Raw Materials and formulation (quality 份)

        沥青 40-65 additives 5-25 SBS 5-30

         increase viscous agent 2-25 filler 10-30

        组 separation effect/influence and adjustment

        1, 沥青

        沥青 延 degree and wax content for bonding property can has important effect/influence, remove requirements in 25℃时 延 degree large 于100cm处, wax amount more, 否则会直接 effect/influence bonding property. in addition, solvent understanding degree has effect/influence, use in 不应含 has more 沥青质 and carbon and machine 械杂质, ensure viscous agent bonding property.

        2, SBS

         use SBS modified 沥青时, and SBS mixed solvent property comparison important. mixed solvent property good, is selection and melt 指数适 in SBS modified more 理想. SBS is styrene (S) and butadiene (B) copolymer, its in butadiene is soft 段, is versus;两端 styrene (S) is hard 段, it poly formed material crosslinked 区域. ratio/proportion (S/B) different, for bonding property can has effect/influence.

        3, increase viscous agent

        (1)松香

        松香 separation structure in has can and type good versus hydrogen 化菲核, also has high property 羧基, therefore for elastomer has good versus property. increase viscous relatively good, due to resin acid in has di 键, solid reaction property high, unstable, easy oxidation.

        (2)萜烯 resin

         as is increase viscous agent use poly resin main/primary is a-蒎烯 or?-蒎烯 resin, its solvent understanding property and versus property and 松香, especially is high soft resin for separation quality more dispersion property polymer/macromolecule combined material versus property, and SBS沥青 still can very good versus 容, and versus ratio, resin increase viscous property 稍差, its resistant oxygen property good, heat resistant property excellent 良.

        (3)石油 resin

         aromatic resin and SBS versus property 差, generally as is increase viscous agent use. can as is increase viscous agent main/primary is aliphatic resin, its increase viscous 效果不如松香 and resin.

         comprehensive bonding property can, high low temperature property can and cost factors, most good selection and resin mixed combined increase viscous system. mixed combined increase viscous system in scope/range inner, increase viscous 效果随 increase viscous agent use amount increase improve/increase, ultra- 出此 scope/range, its increase viscous 效果并不 obvious, but also modified 沥青胶 viscous agent resistant thermal properties will to effect/influence.

        4, filler

         most good selection surface treatment active property filler. is active property filler pellets surface can and polymer/macromolecule combined formed crosslinked structure, its in strip/profile separation 子链受 to force 时, can through crosslinked will force dispersion to other separation 子链;若 its in strip/profile fracture, other can 照样起 function, 而不致马 upper and full 体, can improve/increase modified force property can.

         made methods

         made process in will add hot water, will water rear 沥青计 amount add 入搅拌罐, again add additives rear rise temperature 至180-210℃, add SBS搅拌60-90min, make SBS完 full melt 化, can will and SBS mixed combined material through abrasion promote SBS melt 化; belt/tape SBS melt rear, again add increase viscous agent 搅拌30min, most rear add filler uniform, is viscous modified 沥青胶 viscous agent.

         property can evaluation

        自 viscous modified 沥青胶 viscous agent is production modified anti water important raw materials. it tool has strong/high degree high, elongation large, bonding property good, low temperature flexible excellent, can and, 施工方便 fast and other advantages. viscous agent not only is 覆面材 material and between adhesion 层, can long time maintain bonding property can, is and between force absorption 层. 当屋面因应 force generate 裂缝时, adhesion tool has can property and versus 当 延展 property, can through 自身形变缓冲 or absorption 屋面应 force, decrease/reduce deformation for 覆面材 material effect/influence, from can long use lifespan and solution 传统卷材 use difficult issues.