The development of rubber products in recent years

China's plastic processing industry has developed rapidly in recent decades, especially in the years of reform and opening up, with an average annual growth rate of more than 10%, which has made remarkable achievements. In recent years, the development of rubber products in China presents the following characteristics:

(1) The growth rate of plastic pipe in China ranks first in the world

Data from relevant departments show that in recent years the annual growth rate of China's plastic pipe has reached 15%, ranking the first in the world.

China's annual waste water emissions have reached 62 billion tons, equivalent to 49 tons per person per year, most of which is directly discharged untreated into rivers and lakes, and 53% of the offshore waters are polluted. Of the 163 lakes and reservoirs evaluated by the survey, 36 are polluted to varying degrees, 19 of which are seriously polluted. Therefore, the country has taken the resource of urban sewage as a strategic problem of national economic development to grasp, so the development and use of no leakage, long service life drainpipe has become a key concern in the construction of municipal drainage pipe network in the future.

Under this background, huge demand will drive plastic pipe market in a longer period of time to maintain rapid growth momentum.

2) The rapid development of engineering plastics

At present, the rapid development of China's automobile industry, especially the car industry, the use of engineering plastics in each car reached 60 ~ 80kg, in addition to buses, trucks and motorcycles and other products in the number of engineering plastics is also gradually increasing; In building materials, many traditional materials are gradually replaced by engineering plastics and have achieved good application effect. Home appliances, such as TV sets, video recorders, computers and other equipment and materials, the domestic market is huge. The 2008 Beijing Olympic Games opened up a good prospect for the application of engineering plastics in construction, transportation, infrastructure and other aspects. At present, China's investment environment is good, the international famous engineering plastic groups have entered the Chinese market to invest and set up factories.

(3) Foam plastic production situation is good

Foam plastic is an important category of plastic products, variety, in industry, agriculture, construction and daily life has a wide range of uses, with the rapid development of petrochemical and plastic products industry, the production of foam plastic in China grows faster. At present, China has nearly 300 foam plastic manufacturing enterprises, most of which are small enterprises.

Liquid silica gel is relative to solid high temperature vulcanized silicone rubber, which is liquid glue, has good fluidity, fast vulcanization, more safe and environmental protection, and can fully meet the requirements of food grade. According to the functional groups contained in the molecular structure (that is, the crosslinking point) position, often the liquid rubber with functional groups is divided into two categories: one is the functional group at both ends of the molecular structure called teleclaw type liquid rubber; The other is the active functional groups in the main chain random distribution, that is, the so-called in the molecular structure with functional groups, called non-teleclaw type liquid rubber. Of course, there are some that have both intermediate and terminal groups,

At present, the emphasis is on the research of teleclaw type liquid rubber. For liquid rubber, chain growth agents or crosslinking agents with appropriate functional groups should be selected according to their active functional groups.

Standard rubber or granular rubber is a new variety of natural rubber developed in the 1960s. Previously, the general smoke, crepe, air - dried pieces of these traditional products are bound to the development of natural rubber regardless of classification methods and manufacturing methods. Therefore, Malaysia began to implement the standard rubber program in 1965, and developed the production of granular rubber based on the classification of the physical and chemical properties of raw rubber. Standard rubber is classified according to mechanical impurities, plastic retention rate, plastic initial value, nitrogen content, ash content, ash content, color index and other physical and chemical properties of rubber. Standard rubber packaging is also more advanced, generally with polyethylene film packaging, and has a bright logo, the weight of the bag is smaller, easy to carry. Malaysia's packing weight is 33.3kg, China's regulation is 40kg.