DOTP Wire Plasticizer

Guangdong Xiongxing New Material Co., Ltd. is one of the most reliable manufacturers and suppliers of dotp wire plasticizer in China. Welcome to wholesale high quality products in stock here and get free sample from our factory. Also, custom service is available.

Chemical Name:Dioctyl Terephthalate

Molecular Formula:C₂₄H₃₈O₄

PVC resin

The resin for the production of PVC plastic profiles is polyvinyl chloride resin (PVC), which is a polymer polymerized from vinyl chloride monomers, and its output is second only to PE, ranking second.

PVC resin can be divided into loose type (XS) and compact type (Ⅺ) due to the different dispersants in polymerization. The loose particle size is 0.1-0.2mm, the surface is irregular and porous, it is like a cotton ball, easy to absorb the plasticizer, the compact particle size is less than 0.1mm, the surface is regular, solid, and it is ping pong-shaped, not easy to absorb Plasticizers are currently used more loosely.

PVC can be divided into ordinary grade (toxic PVC) and sanitary grade' (non-toxic PVC). The sanitary grade requires that the content of vinyl chloride (VC) is lower than 10x10-6, which can be used in food and medicine. The synthesis process is different, PVC can be divided into suspension PVC and emulsion PVC. According to the national standard GB/T5761-93 "General Purpose Polyvinyl Chloride Resin Inspection Standard for Suspension Method", the suspension method PVC is divided into PVC-SGl to PVC-SG8Jk resins. The smaller the number, the greater the degree of polymerization and the greater the molecular weight. Larger, the higher the strength, but the more difficult the melt flow, the more difficult the processing. When making specific choices, when making soft products, PVC-SG1, PVC-SG2, and PVC-SG3 are generally used, and a large amount of plasticizer needs to be added. For example, polyvinyl chloride film uses SG-2 resin, and 50 to 80 parts of plasticizer is added. When processing hard products, generally no or very little plasticizer is added, so PVC-SG4, VC-SG5, PVC-SG6, PVC-SG7, PVC-SG8 are used. For example, SG-4 resin is used for PVC hard pipes, SG-5 resin is used for plastic door and window profiles, SG-6 resin is used for rigid transparent sheets, and SG-7 and SG-8 resins are used for rigid foaming profiles. The emulsion PVC paste is mainly used for artificial leather, wallpaper, floor leather and plastic products. The PVC resins produced by some PVC resin manufacturers are classified according to the degree of polymerization (the degree of polymerization is the number of unit chains, and the degree of polymerization multiplied by the molecular weight of the chain is equal to the molecular weight of the polymer), such as the PVC produced by Guangzhou Weilianda Plasticizer Co., Ltd. Resin, the factory products are SK-700; SK-800; SK-1000; SK-1100; SK-1200, etc. The corresponding degree of polymerization of the SG-5 resin is 1000-1100. For the physical and chemical properties of PVC resin, see Chapter 4.

PVC powder is a white powder with a density of 1.35-1.45g/cm3 and an apparent density of 0.4-0.5g/cm3. Depending on the plasticizer content, it can be soft or hard products. Generally, 0-5 parts of plasticizers are hard products, 5-25 parts are semi-hard products, and more than 25 parts are soft products.

PVC is a kind of non-crystalline and polar polymer with high softening temperature and melting temperature. Generally, pure PVC can be plasticized and processed at 160-210~C. Due to the polar bond between macromolecules, PVC can be plasticized. Shows hard and brittle performance. Moreover, the PVC molecule contains chlorine groups. When the temperature reaches 120~C, pure PVC begins to undergo HCl removal reaction, which will cause thermal degradation of PVC. Therefore, various additives must be added during processing to modify and impact the PVC so that it can be processed into useful products.

PVC resin is mainly used to produce all kinds of films (such as daily printing film, industrial packaging film, agricultural greenhouse film and heat shrinkable film, etc.), all kinds of boards, sheets (the sheets can be used for blister products), all kinds of pipes (Such as non-toxic water supply pipes, construction threading pipes, transparent hoses, etc.), various shaped materials (such as doors, windows, decorative panels), hollow blown bottles (for cosmetics and beverages), cables, various injection molded products and artificial leather , Floor leather, slush plastic toys, etc.

Application:

DOTP can be widely used in artificial leather,PU,PVC cable materials,plastic film,plastic sandals,foam sandals,seals of windows and doors,PVC profiles,soft board,all kinds of rigid pipe,decorative materials,foam hard board which all use the plasticizers,it can reduce the production cost of 30%.it is the main environment-friendly products in present market,meets the EU environmental standards(ROHS,REACH).DOTP is acknowledged by all over the world,is a non-toxic product can be applied in plastic production related to food and toys.

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