防水片材挤出机
弹性体(SBS)改性沥青防水卷材、塑性体(APP)改性沥青防水卷材是以聚酯胎或玻纤胎为胎基，沥青复合胎柔性防水卷材是以沥青为基料，以两种材料复合为胎体，采用的复合胎大多数是化纤破布与高碱玻纤网格布复合而成，不易浸涂、耐霉菌、耐水性、耐久性差，故使用寿命短，主要用于一些临时建筑或设防等级要求不高的场合。标准明确规定除SBS卷材外，其它任何改性沥青、胎基和上表面材料制成的沥青防水卷材，均不得冠以“SBS”卷材。防水片材挤出机
一、包装标识。以上三种材料单从外观来看，没有太大区别，因此首先要看包装、标识是否规范。标志上必须注明：生产厂名、商标、产品标记、生产日期或批号、生产许可证号、贮存与运输注意事项，缺一不可。每卷卷材均应标记，且要严格按***标准规定的顺序标记。同时，要注意卷材的贮存期一般不超过一年。 二、看胎基。可以通过用手撕开卷材边缘的方法，来判断胎基是否与标记一致，是否完全浸透，满足标准规定的要求。胎基不能有未浸透的白色痕迹或浅***点。聚酯胎用手极难撕裂和拉断，沥青和胎基亲和性好，而沥青复合胎卷材往往易撕开，撕开就可以观察出胎基情况了。 三、通过物理性能检测判定。裁剪0.8m的卷材按标准进行物理力学性能的检测，达到标准要求即为合格产品。高分子防水卷材通常分: JL1型：三元乙丙橡胶类防水片材是以三元乙丙橡胶为主要材料制成的均质防水片材，是国际上公认的***次防水材料，其特点是：弹性高、延伸性好、耐天候性能优越，是***工程的材料。 JL2型：橡胶（橡塑）共混防水片材，是由橡胶与塑料或橡胶与橡胶共混而成的防水片材，是仅次于三元乙丙类防水片材的防水材料，其特点是柔韧性好、粘着性、耐天候仅次于三元乙丙类片材。 JS2型：均质树脂类防水片材主体材料为EVA，其特点是耐水性能强，耐臭氧好，适于恶劣环境下施工，其焊接性能好的特点在地铁等地下工程中成为材料。 JF2型：非硫化橡塑共混防水片材，主体材料为橡胶与塑料、橡胶与橡胶共混而成，压延后只需常温停放即可，生产效率高。性能相对差一些。 FS2型:聚乙烯丙纶卷材具有抗渗透能力强、抗拉强度高、低温柔性好、线胀系数小、易粘接、摩擦系数大、稳定性好、***、变形适应能力强、适应温度范围宽、使用寿命长、耐腐蚀、耐霉烂、耐穿刺等良好的综合技术性能。
选择购买防水片材挤出机时，同样必须注意产品标记内容是否符合标准要求,签订合同时，要注明执行标准、分类、规格尺寸等。
Waterproof sheet extrusion.
Elastomer (SBS) modified asphalt waterproofing materials, plastic body (APP) modified asphalt waterproof coiled material is polyester tires or fiberglass base, asphalt compound tyres base makings, flexible waterproofing materials in asphalt is tire body with two kinds of composite material, composed mostly of chemical fiber cloth with high alkali glass fiber grid cloth composite, dip coating, mildew resistance, water resistance, durability is poor, so the service life is short, it is mainly used for some temporary buildings or fortification level requirement is not high.The standard clearly stipulates that the asphalt waterproof rolling material made of any modified asphalt, tire base and upper surface material shall not be labeled as "SBS" in addition to SBS coil.
I. packaging identification.The above three materials are not very different from the appearance, so the first thing to look at is the packaging and must be indicated on the logo: production name, mark, product mark, production date or batch number, production license number, storage and transportation precauti***.Each coil shall be marked and marked in strict accordance with national the same time, note that the storage period of the coil is generally not more than one year.Look at the fetal can be used to determine whether the matrix is c***istent with the mark, whether it is fully saturated and meets the requirements of the standard.The fetus should not he unsaturated white marks or light spots.Polyester tyres are very hard to tear and break, and the asphalt and foetus he good affinity. However, the asphalt composite tire is easy to tear open, and the love of the foetus can be observed.3. Determination through physical performance test.The material with 0.8m cutting is tested according to the standard physical and mechanical properties, and the standard requirement is the qualified product.Polymer waterproof coiled material usually points: jumpers JL1 type: epdm rubber waterproof sheet material is epdm as the main materials of homogeneous waterproof sheet, is internationally recognized high-grade waterproofing material, its features are: high elasticity, good extensibility and weather resistance superior performance, is the first selection of key project materials.JL2 type: rubber (plastics) blend waterproof sheet, is made up of rubber and plastic or rubber and rubber blend of waterproof sheet, is second only to epdm waterproof sheet of waterproof material, its characteristic is flexibility, viscosity, good resistance to weather after class epdm sheet.JS2 type: homogeneous resins waterproof sheet subject to EVA material, characterized by strong water resistance, good resistance to ozone, suitable for bad environment c***truction, the good welding performance characteristics in underground engineering such as the subway become the preferred material.JF2 type: non-vulcanized rubber and plastic waterproof sheet material, the main material is rubber and plastic, rubber and rubber are mixed together, the pressure is only after the normal temperature park, the production efficiency is high.The performance is relatively poor.FS2 type: polyethylene polypropylene fiber coil with strong penetration resistance, high tensile strength, good low temperature flexibility, linear expansion coefficient is ***all, easy to adhesion, friction coefficient, good stability, non-toxic, deformation adaptable, adapt to the wide temperature range, long service life, corrosion resistance, resistance to mildew, good durability tingling and comprehensive technical performance.
When choosing to purchase, it is also necessary to pay attention to whether the product labeling content meets the standard requirements, and when signing the contract, the standard, classification and size of the product should be specified.