Overview
High Transparency GPPS is a versatile thermoplastic polymer derived from styrene monomer. It is characterized by its glass-like clarity, making it ideal for applications where visual appeal is critical. Unlike impact-modified polystyrene (HIPS), GPPS lacks rubber additives, preserving its transparency but reducing impact resistance. As a cost-effective material, it is widely used in injection molding and extrusion processes. Its ease of processing and compatibility with food-contact regulations further enhance its popularity in packaging and consumer goods industries.
Physical and Chemical Properties
GPPS exhibits a refractive index of 1.59, closely matching that of glass, which contributes to its optical clarity. Its rigidity is measured by a tensile modulus of 3,000–3,500 MPa, though it becomes brittle below its glass transition temperature (100°C). Chemically, GPPS is resistant to water, alcohols, and dilute acids but dissolves in solvents like toluene or acetone. It degrades under prolonged UV exposure, often requiring stabilizers for outdoor use. Thermal stability is limited, with decomposition beginning around 300°C.
Main Applications
The primary use of High Transparency GPPS is in food packaging, including clamshell containers, cups, and cutlery, where FDA compliance is essential. Its clarity also suits medical applications like Petri dishes and labware. In electronics, GPPS forms light-diffusing panels for LED fixtures. Specialty grades with enhanced UV resistance are employed in point-of-purchase displays and cosmetic packaging. Emerging uses include 3D printing filaments for prototyping.
Safety and Storage
GPPS is generally recognized as safe for food contact but must meet regional standards like FDA 21 CFR or EU 10/2011. Processing fumes may irritate respiratory systems; adequate ventilation is required. Storage recommendations include keeping pellets in moisture-proof bags below 30°C to prevent clumping. Prolonged exposure to sunlight can cause yellowing, so opaque packaging is advised for long-term storage. Fire safety measures are critical due to its flammable nature.
B2B Procurement Guide
Industrial buyers should specify optical properties, such as haze (<2%) and light transmission (>90%), when sourcing GPPS. Food-grade certifications (e.g., NSF, ISO 10993) are mandatory for packaging applications. Bulk pricing typically applies for orders above 20 metric tons, with discounts for consistent quarterly purchases. Key suppliers include INEOS Styrolution, Trinseo, and local Asian manufacturers. Sample testing for thermal stability and processability is recommended before large orders.
Related Manufacturers
- 主营：改性助剂、相溶剂、增韧剂、接枝料、丁晴橡胶粉、各类粉末、流变剂、油性水性液体橡胶、液体丁腈、液体丁苯、液体三元乙丙、液体丁基、SBS英全化学、液体顺丁/聚丁二烯、溶剂TPU、聚丁二烯橡胶RB系列
- 主营：聚烯烃、机械仪器、工业壳体、升级透明聚丙烯
- 主营：F20-03、m90-44、m90-45、PC-1100、pom100p、pom500p、pom900p、云天化pom、宝理pom、旭化成pom、杜邦pom、巴斯夫pa66、杜邦pa66、聚甲醛原料、聚丙烯pp、埃克森美孚POE、美国苏威PPSU、科思创PC、沙伯基础PC、李长荣聚丙烯、路博润TPU、埃克森ldpe、巴塞尔ldpe、韩华ldpe、日本三菱pom
- 主营：PVDF、PVDF彩色料、PFA、FEP、PTFE、PEEK、PEI、PSU、PCTFE、ECTFE、PES
- 主营：POM 100P、PA66杜邦系列、POM 500P 杜邦、PC 2805科思创、PA66旭化成、沙比克pmmap20mh、Hips、PMMA、PMMA 20HR、Tpu、Pa46、Pa66、Hdpe、Ldpe、Poe、Eva、Lcp、Pbt、PP、Abs、Asa、Pctg、Para、PEEK
- 主营：Pa66、通用塑料、工程塑料、聚丙烯、聚乙烯、POM、聚甲醛、亚克力、弹性体、EVA、PP、PC、LDPE、LLDPE、TPE、TPEE、TPU、PC/ABS、粉料、GPPS、HDPE、PBT、SEBS、PETG、PA12
- 主营：ABS、PC、POM、TPU、PP、LCP、PBT、PMMA、Pom100p、Pom900p、Pom500p、M90-44、F20-03、ABS747、ABS757、PEEK、PVDF、PPSU、PPA、PARA、PCTG、PA9T、Pa12、COC
- 主营：pc、pps、PTFE
- 主营：POM、PA66、PC、Pom100p、Pom500p、Pom900p、Pom100t、M90-44、F20-03、ABS747、abs757、TPU、美国杜邦pom、日本旭化成pom、日本宝理pom、ASA、COC、PEEK、PVDF、PCTG、PCTA、PA612、Pa6t、Pa9t
- 主营：PP、POM、pc、PA66、POE、ABS、PPS、PBT、PA6
- 主营：tpu、Eva、Pom、Pa66、Lcp、Pa6t、Pa9t、Pa6、Poe、Hdpe、Ldpe、Lldpe、Pc、Hips、Pbt、Pctg、Pc/abs、Abs、pp、Ppsu、Pps、Para、Tpee、Pa612、Pa12
- 主营：高透明、改性塑料
- 主营：液体橡胶、塑料增韧剂、相容剂、透光材料、溶剂型TPU、橡胶粉末、英全SBS、聚丁二烯橡胶RB系列、可发性聚苯乙烯EPS、改性TPU
- 主营：pa66、pom赛钢、TPU原料、PA6尼龙、瑞士EMS原料、杜邦pom、宝理pom、旭化成pom、巴斯夫pa66、科思创TPU、PC/ABS、聚丙烯pp、PA6T、日本宝理PPS、TPV、PBT、TPU1185A10、PC540、M90-44、F20-03、POM100P、杜邦pom500p、德瑞灵pom、埃克森美孚poe、聚碳酸酯PC
- 主营：胶黏剂、增硬剂、接枝料、gppsn1841h、通用料、液体橡胶、相容剂、pa尼龙粉、溶剂型TPU、透明Tpu
- 主营：EPS粒子、相容剂、增韧剂、液体橡胶、粉末丁腈橡胶、功能助剂、工程塑料、部分通用塑料