Plastic modification is in general resin mass adding relevant modification agent, through physical, chemical or mechanical method, improvement or increase its function, electrical, magnetic, optical, thermal, ageing resistance, flame retardant, mechanical performance and so on under special conditions meet the application requirements. Modified plastics is covers a wide range, high science and technology content, can create remarkable economic benefit of a plastic industry field, modified plastics has broad prospect.

Modified plastics in the industry's status is day by day prominent.

Modified plastics is in plastic to add a certain component, change the nature of the plastic, adapt to the needs of the production of different products. At present the world modified plastics annual output reached 2000 wt above, the main applied to automobiles, home appliances, communications, computer, etc.

At present our country automobile, home appliances, communications, high-grade tool on the modified plastics demand is very big. The first is the automotive industry, especially the car industry to plastic special material demand for more. In 2004, for example, China's auto production of 400 w a, the modified plastics demand for 30 wt. The second is home appliance industry. At present, all kinds of electrical appliances product use plastic raw materials, to all kinds of plastic years is expected to demand for 70 wt, among of which, the demand of modified plastics for 20 wt. The third is communication and computer field, at present, mobile phones and household computer user has increased dramatically. In 2004, for example, when mobile phone consumption for 150 million department, need to use modified plastics 6 wt; All kinds of computer to modified plastics demand reach 10 wt. Fourth, all kinds of electric tools production also need a large number of modified plastics, in 2004 the industries to the needs of the modified plastics for 5 wt. Fifth, 2004 other industries to the demand of modified plastics in more than 15 wt.。

Due to the downstream of modified plastics have heavy demand industry mostly belongs to the consumer industries, with the consumer upgrades, domestic demand start, these industries will be high speed growth, thus promote the heavy demand for modified plastics. At present, our country to modified plastics in the demand has more than 100 wt.

In addition to the market value, the state of modified plastics industry development is also on the policy, offer a great support. The approval of the state council published "the current national key to encourage the development of industries, products and technologies directory (2000 revision)" issued by the ministry of science and technology and the current priority development of new and high technology industrialization key areas guide (2001) "are pointed out:" engineering plastics and general plastic high performance-based production "is the country to encourage the development of industrialization of key areas, and recent industrialization the key is" on PP, PE, ABS, PS, PVC and so on general plastics modified, the construction capacity of special material production line ".

In addition, the ministry of science and technology, the ministry of finance and the state administration of taxation jointly announced the China high-tech products catalogue also is in "organic polymer materials and products" column are listed in a variety of modified plastics products.

Plastic building materials and new packing materials will be plastic increase of the main field.

Now chemical building materials is called steel, wood and cement after the fourth generation of building materials, plastics, building materials and chemical building materials is the main part. Plastic building materials mainly include plastic pipe, plastic doors and Windows, building waterproof materials, heat insulation materials, decoration materials, plastics, building materials in construction engineering, municipal engineering, industrial construction in wide range of USES.

The real estate industry and construction industry is the pillar of the national economy industry, although the house price rising excessively countries constantly issued relevant macroeconomic regulation and control policy, but the management support the healthy development of the housing industry attitude has not changed; As China's economy has entered the overall well-off society, residents to improve the housing conditions of the strong demand remains strong, Beijing Olympic Games and Shanghai world expo venue construction also stimulates the construction development needs. In this case, the national chemical building materials leading group also successively promulgated relevant chemical building materials production and application of several opinions, outline and method, for the steady development of plastic building materials to provide policy guarantee.

China plastic building materials products have great market space. With plastic pipe market as an example, the developed countries of the plastic pipe market share is 50% and China only 25%. The ministry of construction is expected, the next 10 years domestic plastic pipe market demand will be as high as 800 billion yuan.

In addition to building materials besides, new packaging material is plastic market growth and a engine. China's cement, fertilizer production in the world's first, at present cement packing more than 30% using composite woven bag; And minerals, chemical products, synthetic resin, crude salt, sugar, cotton and wool products packaging, plastic packaging as the main packaging materials is an inevitable trend.

In addition, China is food production power, needs a large number of plastic packaging materials. With the upgrading of consumption trend of the propulsion, food, beverage, medicine, washing supplies, cosmetics industries rapid development of composite film, packaging film, containers, plastic box, such as plastic packaging products have a high demand.

Plastic in the home appliance industry and automobile industry wide application space.

In the home appliance industry, washing machine and dishwasher use a lot of polypropylene plastics, each washing machine with polyethylene average 4 kg, every dishwasher average use polyethylene 7 kg. Drying machine main use of engineering plastics (such as nylon and polyformaldehyde, etc.) do mechanical components. In the field of home appliance general thermoplastic plastics consumption growth rate more than the average growth rate of home appliance materials.

Home appliance manufacturers to meet consumers' growing aesthetic requirements, is the pursuit of higher design flexibility. Because of home appliance of the original equipment manufacturer basically can provide similar function, in fact, home appliance design has become the main differentiation factors retail market. The new environmental consciousness and the new laws and regulations on product specifications may also be affected. Plastic good functions make it can satisfy the home appliance industry continuously put forward new requirements.

Plastic in automobile industry application prospect of the same value. The world many cars plastic dosage has more than 120 kg/car, individual models also high, Germany Benz advanced car plastic usage has reached 150 kg/car. Some domestic car plastic dosage has reached 90 kg/car. May foresee, along with the automobile lightweight process of the acceleration, the application of plastics in automobile will be more extensive.