检测信息(部分)
低密度聚乙烯是什么?
低密度聚乙烯(LDPE)是一种由乙烯单体通过高压自由基聚合工艺制得的塑料材料,具有柔韧性好、耐腐蚀性强的特点。
低密度聚乙烯的主要用途有哪些?
广泛应用于包装薄膜、电线电缆护套、日用品容器、医疗器械及农业覆盖膜等领域。
检测低密度聚乙烯的主要目的是什么?
确保材料性能符合行业标准,评估其加工适用性、安全性和使用寿命,并为质量控制提供数据支持。
检测周期一般需要多久?
常规检测项目通常在5-7个工作日内完成,复杂项目可能延长至10-15个工作日。
检测报告包含哪些内容?
涵盖样品信息、检测方法、结果数据、标准限值对比及结论建议等模块。
检测项目(部分)
- 密度:反映材料单位体积质量,影响产品浮力与机械性能
- 熔融指数:表征材料在熔融状态下的流动特性
- 拉伸强度:测量材料抵抗拉伸破坏的能力
- 断裂伸长率:显示材料延展性和韧性指标
- 维卡软化点:测定材料热变形温度
- 氧化诱导期:评估材料抗热氧化稳定性
- 灰分含量:检测无机物残留量
- 挥发分含量:反映材料中小分子物质含量
- 透光率:衡量透明制品的透光性能
- 雾度:表征材料表面光散射程度
- 介电强度:测试绝缘材料耐电压能力
- 体积电阻率:反映材料导电特性
- 环境应力开裂:评估抗应力腐蚀性能
- 落镖冲击强度:测试薄膜抗冲击性能
- 熔体强度:表征熔体拉伸性能
- 分子量分布:影响材料加工性和力学性能
- 阻燃性能:测定材料防火特性
- 重金属含量:检测有害元素残留
- 卫生指标:验证食品接触材料安全性
- 耐候性:评估户外使用性能保持能力
检测范围(部分)
- 薄膜级LDPE
- 注塑级LDPE
- 电缆料LDPE
- 涂层基材LDPE
- 医用级LDPE
- 食品级LDPE
- 发泡LDPE
- 改性LDPE复合材料
- 高透明LDPE
- 高熔指LDPE
- 耐候型LDPE
- 抗静电LDPE
- 阻燃LDPE
- 交联LDPE
- 填充型LDPE
- 再生LDPE
- 超低密度聚乙烯
- 茂金属LDPE
- 多层共挤LDPE
- 特种功能LDPE
检测仪器(部分)
- 熔体流动速率仪
- 万能材料试验机
- 差示扫描量热仪
- 红外光谱仪
- 凝胶渗透色谱仪
- 热重分析仪
- 紫外可见分光光度计
- 高压液相色谱仪
- 原子吸收光谱仪
- 氧指数测定仪
检测标准(部分)
1.1 This specification covers unpigmented unsupported low-density polyethylene films (hereafter referred to as film or films) from Class 1 polyethylenes per Specification D 4976
Note 18212;The density of a film will not necessarily be equal to the density of a molded plaque from the same resin.
Note 28212;Blends of ethylene/vinylacetate (EVA) with low-density polyethylene may have densities up to 0.929 g/cm3.
1.2 This specification is applicable to homopolymer polyethylene but is not restricted to it. It is applicable to films made from polyethylene copolymers and also applicable to films made from blends of homopolymers and copolymers including ethylene/vinylacetate copolymers.
1.3 The thickness of the films covered by this specification is 100 x03BC;m or less (0.004 in. or less) inclusive. The maximum width of the sheet or layflat is 3.00 m (120 in.).
1.4 This specification does not cover oriented heat-shrinkable films.
1.5 This specification allows for the use of recycled polyethylene film or resin as feedstock in whole or in part as long as all of the requirements of this specification are met and as long as any specific requirements as governed by the producer and end user are also met. (See Note 3.)
Note 38212;Guide D 7209
1.6 This specification defines the levels of the various physical properties from which specifications for specific films may be described. The levels of physical properties required by a film for a given application are selected from Section 6. However Sections 2-5 relating to tolerances shall apply without change to all film falling within the scope indicated by the title and 1.1-1.4.
1.7 This specification covers dimensional tolerances classifications intrinsic quality requirements and test methods. The dimensional tolerances include thickness width and length or yield. Classification defines types classes surfaces and finishes. The intrinsic quality requirements include density workmanship tensile strength heat sealability and odor as well as the classification properties for impact strength coefficient of friction optical properties and surface treatment. A sampling method is included.
1.8 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.9 The following precautionary caveat pertains only to the test methods portion Section 10 of this specification: This standard does not purport to address all of the safety concerns if any associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Note 48212;There is no similar or equivalent ISO specification.

检测优势
检测资质(部分)




检测实验室(部分)
合作客户(部分)





检测报告作用
1、可以帮助生产商识别产品的潜在问题或缺陷,并及时改进生产工艺,保障产品的品质和安全性。
2、可以为生产商提供科学的数据,证明其产品符合国际、国家和地区相关标准和规定,从而增强产品的市场竞争力。
3、可以评估产品的质量和安全性,确保产品能够达到预期效果,同时减少潜在的健康和安全风险。
4、可以帮助生产商构建品牌形象,提高品牌信誉度,并促进产品的销售和市场推广。
5、可以确定性能和特性以及元素,例如力学性能、化学性质、物理性能、热学性能等,从而为产品设计、制造和使用提供参考。
6、可以评估产品是否含有有毒有害成分,以及是否符合环保要求,从而保障产品的安全性。
检测流程
1、中析研究所接受客户委托,为客户提供检测服务
2、客户可选择寄送样品或由我们的工程师进行采样,以确保样品的准确性和可靠性。
3、我们的工程师会对样品进行初步评估,并提供报价,以便客户了解检测成本。
4、双方将就检测项目进行详细沟通,并签署保密协议,以保证客户信息的保密性。在此基础上,我们将进行测试试验.
5、在检测过程中,我们将与客户进行密切沟通,以便随时调整测试方案,确保测试进度。
6、试验测试通常在7-15个工作日内完成,具体时间根据样品的类型和数量而定。
7、出具检测样品报告,以便客户了解测试结果和检测数据,为客户提供有力的支持和帮助。
以上为低密度聚乙烯检测的检测内容,如需更多内容以及服务请联系在线工程师。