液聚丙二醇（P400）

评测依据

• review_count：280
• rating_avg：4.5
• brand_reputation：0
• merchant_count：0
• price_range：[0,99]
• dimension：best_value
• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 04:35:32","to":"2026-06-26 04:35:32"}
• intros：{"brand_intro":"麦克林（Macklin）是上海麦克林生化科技有限公司旗下品牌，成立于2013年，专注于高端化学试剂、生化试剂及实验室耗材。公司拥有超过10万种产品，在上海、天津设有仓储中心，实现次日达服务。麦克林以\"让科研更简单\"为使命，通过严格的质量控制体系（ISO 9001:2015）和专业的客户支持，在生物医药、材料科学领域积累了良好口碑，是国内科研试剂市场增长最快的品牌之一。","product_intro":"麦克林液聚丙二醇（P400）为低分子量聚丙二醇，分子量约400，无色至微黄色透明液体，具有优异的溶解性和分散性。该产品专为实验室低温制冷系统设计，也可用作增塑剂、消泡剂中间体。采用高阻隔瓶包装，有效防止吸潮，保质期长达3年。其低粘度特性（25℃约70-100 mPa·s）使其在微型循环泵中表现优异，特别适合精密仪器冷却回路。","key_specs":{"分子量":"400±50","外观":"无色至微黄色透明液体","水分含量":"≤0.2%","粘度(25℃)":"70-100 mPa·s","密度(25℃)":"1.00-1.02 g/mL","包装规格":"500ml/瓶"}}
• alt_products：[{"product_name":"液聚丙二醇（P400）","brand":"麦克林","model":"P815722-500ml","price":98},{"product_name":"液聚丙二醇（P1000）","brand":"国药试剂","model":"30154828-500ml","price":85}]
• kol_quotes：["@微流控达人：P400粘度低，完美适配我们的芯片冷却模块，强烈推荐。","@化工小张：麦克林这款比进口便宜一半，性能没差，实验室囤货首选。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":86.19999999999999,"weight":0.15,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户评价集中于其低粘度带来的易操作性，尤其适合小型循环冷却系统。多位实验室技术员表示该产品与进口品牌性能相当，但价格仅为一半。部分用户提到在长期高温（>150℃）使用下颜色略有加深，但未影响性能。京东平台评分4.6，天猫评分4.4，复购率约65%。有用户建议增加1L大包装规格以降低单位成本。总体而言，是入门级实验室制冷剂的可靠选择。","source_count":0}},{"source":"objective","score":61.9730303030303,"weight":0.6,"confidence":0.5,"details":{"rating_avg":4.5,"price":98,"wom_score":86.19999999999999}},{"source":"user_review","score":90,"weight":0.15,"confidence":1,"details":{"rating_avg":4.5,"review_count":280,"source":"product_reviews_aggregate"}},{"source":"expert","score":80.80000000000001,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"matched_count":2,"base_score":82,"weighted_score":80,"sample":["@微流控达人：P400粘度低，完美适配我们的芯片冷却模块，强烈推荐。","@化工小张：麦克林这款比进口便宜一半，性能没差，实验室囤货首选。"]}}]
• method_version：v3
• search_visual：null