涤纶产业链可以简化为炼化-芳烃-PTA-聚酯涤纶，下游主要用于纺织行业。我国 PX 产能增长缓慢，对外依存度高，国内供应商以中石油、中石化为主，国外主要从韩国、日本等亚洲国家进口，长期以来供应商享有很强的定价权，占据产业链利润大头。我国 PTA 产能在 09-12 年大扩张，带来了严重的产能过剩，15年以来行业自发去产能，不少 PTA 装臵停车停产，市场竞争格局明显改善。下游聚酯涤纶也经过了较长的调整周期，12-15 年间江浙地区部分成本较高的中小企业停产破产、退出市场，行业逐渐走出低迷期，近两年产能利用率维持较高水平。

Flat glass commonly comes in a sheet form and is produced in a flat state. These glass components are mainly used in the construction, automotive, solar glass, and other end-use industries. Flat glass components are used in windows, doors, facades, decorations, windshields, partitions, electronic equipment, interior fittings, and furniture. It is manufactured by the float glass process.

The global nitric acid market is expected to be primarily driven by increasing use of fertilizers. The maximum amount of nitric acid is consumed in producing ammonium nitrate and calcium ammonium nitrate (CAN). However, use of ammonium nitrate is declining in Europe as well as other parts of the world because of concerns relating to nitrate groundwater contamination and changes in agricultural subsidy policies. Urea is emerging as one of the main nitrogen fertilizers, which is less costly, contains more nitrogen, and does not have many safety issues.

涤纶长丝产量占化纤总产量 60%以上，品种主要有 POY、DTY、FDY 等，产业链条为“原油-石脑油-PX-PTA-聚酯-涤纶长丝-纺织”，上游涉及石化产品 PX、 PTA 等，下游应用主要为服装、产业用纺织品和装饰领域纺织品等。 

PTFE is a polymer composed of carbon and fluorine. PTFE has a straight, long carbon backbone to which the fluorine atoms are bonded. The carbon backbone is protected by the electron cloud of fluorine atoms that form a uniform helical sheath. Therefore, it forms strong bonds, and the non-polarity of PTFE makes it extremely inert and thermally stable.

我们整理了 64 家石化上市公司 2017 年中报，2017H1实现营收 2.47万亿元，同比增长33.59%；实现归属于上市公司的净利润 504 亿元，同比增长 195%，表现抢眼。2017Q2石化上市公司营收 1.24 万亿元，环比增长 1.77%，实现归属于上市公司净利润226.31亿元，环比下降18.6%；剔除大体量的石油石化后，石化公司2017Q2实现归属于上市公司的净利润 51.97 亿元，环比下降 5.14%。

Polystyrene (PS) foam was initially used as a rubber replacement and as a coating to protect metal, wood, and other similar materials. However, with the invention of polyurethane (PU), the scope of application of polymer foam extended to the furniture and automotive industries. The invention of injection molding, twin screw foam, and other extrusion techniques led to a further increase in the spectrum of applications in which it can be used.

The demand for absorbent hygiene products such as sanitary napkins, tampons, and menstrual cups is significantly increasing among individual users. Sanitary napkins are contributing majority of the market share followed by menstrual cup and tampons. However, menstrual cups are observed to be one of the fastest growing feminine hygiene products, which is used for menstrual protection and can be used as a substitute for sanitary pads and tampons. Due to lack of proper awareness and other legal issues, menstrual cup usage has become restricted to a few developed countries.

在下半年确定性较强的安全环保约束下，部分供需格局向好的子行业仍有望维持景气，如受益地产后周期的纯碱、PVC，汽车产业链的炭黑、橡胶助剂，纺织服装产业链的聚酯、粘胶等。

CNT is tube-shaped material made of carbon, with diameters varying from less than 1 nm to 50 nm. It is in the form of a graphite layer that has continuous unbroken hexagonal mesh with carbon molecules at the edges of hexagons. CNTs can be made in various structures, with different lengths, thicknesses, and number of layers. These variations provide CNTs different electrical characteristics despite being made of same graphite sheet. These characteristics allow CNTs to be used as either metals or semiconductors.