admin - Nanjing Union Rubber Chemicals

Classification of vulcanizing agents

Vulcanizing agents can be divided into inorganic and organic two categories. 1.Inorganic vulcanizing agent. Sulfur, sulfur monochloride, selenium, tellurium and so on. 2.Organic curing agent. Sulfur-containing accelerators such as accelerator TMTD, organic peroxides such as benzoyl peroxide, quinone oxime compounds, polysulfide polymers, urethane, maleimide derivatives and the like. Rubber vulcanizing agents include elemental sulfur, selenium, tellurium, sulfur compounds, peroxides, quinone compounds,

2016-10-17

Rubber vulcanizing agent

Rubber additives have many different kinds, the role is also complex, the current international use of a total of more than 3000 kinds. According to their nature, can be classified as the following categories: curing agent, accelerator, active agent, reinforcing filler, plasticizer, antioxidant, coloring agent, and latex special additives and other special purpose additives. One curing agent is an important family

2016-10-12

Definition of Polyether Defoamer

Polyether defoamer is a non-ionic surfactant with excellent defoaming, anti-foaming function, non-toxic, insoluble in water, soluble in organic solvents, can be used alone, can also be used as emulsion, which GPE type Particularly suitable for fermentation industry, PPE suitable for high temperature use. The product has the advantages of polyether and silicone antifoaming agent, can defoaming and defoaming of different media, and

2016-10-10

Application of Mineral Oil Defoamers

Mineral oil defoamers applied for all types of synthetic latex, in particular applied to rubber and plastics industry polymerization, condensation,degassing step,can eliminate foam produced by different surfactants in this system. And it can also be used in resins, water-based paint, latex paint, water-based ink, emulsion polymerization, polymer gel, lotion benzene Bing black liquor, petrochemical and all NA silicone defoamers industry.

2016-09-26

Characteristics of the mineral oil defoamer

1.Defoaming and strong, with less does not affect the basic nature of the bubbling system. 2.Diffusion, permeability, energy and oil, cutting fluids fully compatible. 3.Good heat resistance, chemical stability, non-corrosive, non-toxic, no adverse side effects, non-flammable, non-explosive. 4.Acids, alkalis, salts, electrolytes and hard water can be used. 5.Its performance can be comparable with the imported products, while the price of

2016-09-21

Classification of defoamers

Defoamers mostly be liquid complex products, mainly divided into three categories: mineral oil, organic silicon defoamer, polyether defoamer. Mineral oil defoaming agent is usually composed of a carrier, active agents. The carrier material is a low surface tension, and its function is to dilute bearing carriers commonly used water, alcohols and the like; the role of the active agent is

2016-09-19

The definition of anti-foaming agent

Continuous vulcanization of rubber products under high temperature and pressure conditions, due to the moisture in the role with Ji, the finished product often produce bubbles, not to make rubber products such bubbles during curing, should be thoroughly dried before mixing with Ji except for using, , the need to add anti-foaming agent in the rubber compound, the main component

2016-09-14

How to identify titanium dioxide

Physical methods: 1. The easiest way is to feel, more slippery is false titanium dioxide, the true titanium dioxide is astringent. 2. Flush, hand dip titanium dioxide, fake easily wash away, really not easy to wash away. 3. Take a glass of water, throw into titanium dioxide, and rise is true, down precipitation is false. Chemical method: 1. Light mixed with calcium

2016-09-07

Application of titanium dioxide

The main application areas of titanium dioxide: coatings, plastics, ink, paper, wherein the coating 60%, 20% plastic, paper accounted for 14%, other (including cosmetics, chemical, electronics, ceramics, enamel, welding rod, alloy, glass, etc. areas) accounted for 6%. Titanium dioxide in the rubber industry, both as a coloring agent, but also has reinforced, anti-aging, filling effect. Join in white and colored

2016-08-31

Industrial development of titanium dioxide

Our titanium dioxide industry began in the 1950s. Titanium dioxide is mainly composed of white pigment of titanium dioxide. Titanium dioxide is a polycrystalline compound particle in a regular arrangement, a lattice structure. With the continuous development of titanium dioxide industry, more and more brand awareness by humans, the data show that China’s total production capacity of titanium dioxide accounts for 30%

2016-08-29