POF与PE、PVC收缩膜物理性能优劣比较

Comparison of the physical properties of POF with PE and PVC

1.成本 POF比重0.92,厚度最薄0.012mm,实际单位成本较低. PE比重0.92,厚度最薄0.03以上,实际单位成本较高. PVC比重1.4,厚度最薄0.02mm,实际单位成本较高.

1., the cost POF is 0.92, the thickness is the thinnest 0.012mm, the actual unit cost is lower. The PE proportion is 0.92, the thickness is the thinnest 0.03, the actual unit cost is higher. The PVC proportion is 1.4, the thickness is the thinnest 0.02mm, the actual unit cost is higher.

2.物性 POF薄而韧,厚度均匀,防潮性佳,质地柔软.抗拉强度高,耐撕裂强度大,收缩率可调.因LLDPE存在,耐揉搓性更好. PE厚而韧,厚度均匀,防潮性佳,质地柔软.耐撕裂强度低于POF,但远高于PVC,收缩率可调性差.耐揉搓性不如POF. PVC厚而脆,厚薄不均,防潮性差,质地硬脆.强度低,收缩率低,耐揉搓性差.

2. properties of the POF thin and tough, uniform thickness, good moisture resistance, soft texture. High tensile strength, tear strength, shrinkage rate adjustable. Due to the existence of LLDPE, rubbing endurance better. PE thick and tough, uniform thickness, good moisture resistance, soft texture. Tear strength is lower than POF, but far higher than PVC, shrinkage of poor adjustability. Rubbing endurance than POF. PVC thick and brittle, uneven thickness, moisture resistance, hard brittle. Low strength, low shrinkage, rubbing endurance is poor.

3.耐寒等物性 POF耐寒性极优,-50℃不硬不脆,不易破裂,可用于冷冻食品包装.收缩包装后, -50℃--95℃被包装物长期存放,稳定不变.有静电和防雾处理,不易污染灰尘,可保持产品清洁亮丽.PE 耐寒性特优,冬天或冷冻后,不发硬,不脆化,因此运输不易破裂.有静电消除处理,不易染尘,可保持产品清洁. PVC耐寒性极劣,冬天或冷冻后会发生脆化,因此运输中易破裂.收缩包装愈久,收缩会愈紧,被包装物变形.无静电消除处理,易沾染灰尘,令产品污染模糊.

3. cold physical cold POF excellent, -50 C not hard brittle, not easy to break, can be used for frozen food packaging. Packaging, -50 --95 DEG C to be packaged stored for a long time, stable. Electrostatic and anti fog treatment, easily contaminated dust, can keep clean and bright.PE resistant products the cold winter excellent, or frozen, not hard, not brittle, so transportation is not easy to break. Electrostatic elimination, not easy to dust, can keep the product clean. PVC cold resistance is extremely bad, embrittlement will winter or frozen, so transport shrink packaging longer cracking. That will shrink more tightly packaged deformation. No static elimination, easy to dust pollution, make the product fuzzy.