A kind of regenerated composite material and preparation method thereof
The present invention relates to the industrial waste is regenerated composite material of raw material production and preparation method thereof.
The regeneration of refuse is a human significant effort direction for a long time.Utilizing cast waste sand, slag, dust, mud to be main raw material at present, is caking agent with waste plastic film, waste plastic product, a kind of non-metallic material that are combined into through certain technology.Also having with industrial or agricultural solid waste regeneration such as antiquated sand, slag, useless fiber, damaged tires, activate the back as aggregate, is caking agent with the waste plastic film, is equipped with a small amount of additive, through little plasticizing briquetting, synthetic at a certain temperature.Make non-metallic material through surface treatment again.Though these two kinds of methods have been opened up the road of castoff regenerative utilization, because of quantity of plastics is few, after synthesizing, it is not firm to bond, and stressed back sand easily comes off, and does not reach predetermined technical requirements.And in preparation technology, need to support with skeleton, manufacturability is poor, the production cost height, and technical difficulty is big in actual applications, is difficult to drop into produce in batches, is difficult to apply.
The purpose of this invention is to provide a kind of agriculture and industry waste (waste residue, waste liquid etc.) that reasonably utilizes and carry out the regenerated composite material of process for producing effectively and reasonably, and the preparation method who produces this matrix material.
The present invention is achieved in that regenerated composite material of the present invention is is raw material with polyethylene 50-70%, industrial antiquated sand 30-50%, and per 100 kilograms of raw materials contain used oil 3-5 kilogram, mixes after the synthetic press forming of heat gets this matrix material.Polyethylene adopts waste plastics film, and industrial antiquated sand comprises casting antiquated sand, flyash etc., and used oil is the waste oil of except that easy fuel oil (gas and oil, diesel oil, kerosene etc.), as machinery lubricated waste oil etc.
The preparation method of above-mentioned matrix material is:
Use the polyethylene film fragmentation, industrial antiquated sand is smashed and is sieved, and industrial antiquated sand with the polyethylene film after the fragmentation, after sieving and industrial waste oil mix, and mixes the 180-240 ℃ of heat-activated in back and handles, then press forming.
Matrix material of the present invention is a kind of non-metallic material, because the selection reasonable ratio of raw material makes it have excellent waterproof, anticorrosion, shock-resistant, resistance to compression is difficult for performances such as aging, that technical indicator is stable.Because reasonably prescription and rational preparation technology make preparation method of the present invention have the favorable manufacturability energy, need not add skeleton etc., therefore can adapt to production in enormous quantities, production cost is low, can apply widely, it can be widely used in draining inspection shaft lid, water board, protection against corrosion plate etc.
Embodiment:
With 60 kilograms of the polyethylene of waste plastics film, with its fragmentation; Smash for 40 kilograms with industrial antiquated sand with casting and to sieve, granularity is mixed both more than 80 orders, adds lubricatedly to be mixed 180-240 ℃ of heat-activated processing, press forming then after being mixed for 3 kilograms with used oil.