CN106274013A

CN106274013A - A kind of method by elastomeric material recycle and reuse

Info

Publication number: CN106274013A
Application number: CN201610640860.0A
Authority: CN
Inventors: 杨明治
Original assignee: Dongguan Boorkaee Shoes Material Co
Current assignee: Dongguan Boorkaee Shoes Material Co
Priority date: 2016-08-08
Filing date: 2016-08-08
Publication date: 2017-01-04

Abstract

The present invention relates to a kind of method that elastomeric material recycles, a kind of utilize physical method to carry out becoming a kind of method by elastomeric material recycle and reuse abandoned as precious for rubber, plastic cement and polyurethanes product clout or waste material；Described method mainly comprises the steps that process waste material → outfit raw material → foaming → extrusion molding in advance → punch forming；The present invention can make full use of discarded elastomeric material and section bar, and to produce the performance of the section bar obtained more outstanding；The recoverying and utilizing method of the present invention does not carry out chemical reaction or burning to obsolete material simultaneously, does not results in secondary pollution, belongs to environment-friendly type circulation and stress, becomes and abandons as treasured；The more important thing is that equipment that the present invention uses and technique are the most relatively easy, will not the expenditure of high cost, and utilizing of the elastic section bar of final molding is wide, such as shock-absorbing shoe-pad, sole or various needs elasticity and the product of shock-absorbing engineering, can bring beneficial effect to consumer.

Description

A kind of method by elastomeric material recycle and reuse

Technical field

The present invention relates to a kind of method that elastomeric material recycles, espespecially a kind of for rubber, plastic cement and polyurethanes (EVA, TDI, MDA, PU, PP) product clout or waste material utilize physical method to carry out becoming the one abandoned as treasured and are reclaimed by elastomeric material The method recycled.

Background technology

Rubber, plastic cement and polyurethanes (EVA, TDI, MDA, PU, PP) product are as elasticity of good performance, damping, suction Sound material, purposes is wide, consumption is big, to be generally cut out product before using, and can be left some tailings after cutting out, or Person's raw produce abandons after using, and all can become waste products, and the processing method present for these tailings or dead meal is led to It is often landfill or burning disposal, if the waste material of foamed plastic can cause environmental pollution through burning disposal, jeopardizes health；If filling out Bury process, be buried in underground for a long time, it is impossible to decompose and be also difficult to corruption, serious environmental problem can be caused；If accumulation deposit, need Large-area warehouse stores, and not only causes environmental protection pollution problem and environmental pollution etc., but for this type of clout or waste products, It is exactly more precisely new product that the elasticity possessed due to them and toughness generally still belong to kilter, especially clout, institute Recycle after this type of clout or waste material can be reclaimed being preferably formed with a kind of method.

China Patent Publication No. is the recoverying and utilizing method that CN1309144A discloses a kind of waste polyurethane foam, uses Technical scheme be discarded polyurethane foam to be carried out pulverizing obtain powder, in powder, add stannous octoate, toluene two different The raw material of the polyurethane foam such as cyanate ester, polypropylene glycol is also sufficiently mixed, and is wrapped in new after carrying out the chemical reaction of polymerization foaming In the polyurethane foam product generated, although such processing method is to say recycling waste polyurethane bubble to a certain extent Cotton, but the product produced has and is accused of shoddy suspicion, causes society's trust problem；China Patent Publication No. is CN1349879A discloses a kind of method of foamed plastic (such as PE, PP, PS, EVA etc.) waste recovery, the main technical side used Case be first pulverize peaceful elder sister after compress and cool down, utilize compression cool down the gas heating in foaming agent and eliminated, carry out simultaneously Two steps, one is discarded recovery, another time semi-finished product conveying, pulverize condensation after completing again, and make particles, pass through After cooling, finished product has i.e. been accused, and this technical scheme can relate to the emission problem of penetrating odor or poison, makes to environment on the contrary Become impact；China Patent Publication No. is the recovery method that CN101560309A discloses a kind of polyurethane (PU) waste material, mainly adopts Technical scheme be PU is ground into powder after mix with polrvinyl chloride material according to a certain percentage, carry out after chemical reaction at height Plastifying into granule under temperature, extrude, be rolled into product, this recovery method needs the equipment coordinated the most, causes back Receive high cost.

Summary of the invention

It is desirable to provide one is for rubber, plastic cement and polyurethanes (EVA, TDI, MDA, PU, PP) product clout Or waste material utilizes physical method to carry out change to abandon as precious process, a kind of method by elastomeric material recycle and reuse.

The present invention mainly the technical scheme is that

Preferably, a kind of method by elastomeric material recycle and reuse, described method mainly comprises the steps that

Process waste material: clout or dead meal are mixed, carry out air-drying dedusting roguing by aerator after high pressure rinse, so The filler particles that cutting and grinding become footpath grain to be 1-10mm is carried out afterwards with stirring-type cutting machine；

It is equipped with raw material: raw material mainly has the waste material of chopping as inserts, black material and to expect in vain, and described clout and waste material are rubber Or plastic cement or EVA polyurethane foam or TDI or MDI or PU or the mixture between them, described black material is TDI or MDI, suitable Amount inserts is standby, and according to following deal ratio, black material and white material are carried out mix and blend foaming, black material 50-70 part, and white material is Polyether polyol 25-30 part, amine catalyst 0.1-0.3 part, polyamine class polyol crosslink agent 0.3-1 part, foam stabiliser 0.5- 1.6 parts, dibutyl tin laurate 0.05-0.1 part, low molecular polyether triol cross-linking agent 0.3-1.5 part；

Foaming in advance: be sufficiently stirred for foaming in advance, by the temperature of raw material after ready black material and white material being placed in foam box Degree is warming up to 25-40 DEG C, and open stirring whitening to foamed material and substantially have the cream time rising sign is 12S, the rise time It is 160S；

Extrusion molding: by inserts and expect in extrusion shaping machine on foamed material in advance, get out the mould of up-down structure, Lower mold is pre-placed bed of cloth as basic unit, then at basic unit's extrusion first foaming raw material layer in advance, then first On foaming raw material layer, extrusion waste material filler particles is as filling interlayer in advance, and then on filling interlayer, extrusion injection second is pre-again First foaming raw material layer, owing to foaming raw material is flow-like in advance, is wrapped in centre using filler particles as interlayer；

Punch forming: the down vertical punching press of last mold and lower mold matched moulds, carries out punch forming to material, through punching press Inserts is wrapped in first foaming raw material layer molding together with in the middle of second in advance foaming raw material layer in advance, becomes and has four layers The integral type of structure has the elastic and product forms of incabloc function.

The foam density of the described foaming body after the foaming of foaming raw material in advance is 0.05, and rebound degree is 75%, hot strength Being 86.5, percentage elongation is 155.

The invention has the beneficial effects as follows: the present invention can make full use of discarded elastomeric material and section bar, in particular for one A little cutting leftover pieces out can retain each attribute that they are original, can play again their characteristic so that finally give The performance of section bar more outstanding；The recoverying and utilizing method of the present invention does not carry out chemical reaction to obsolete material or burns simultaneously Burn, do not result in secondary pollution, belong to environment-friendly type circulation and stress, become and abandon as treasured；The more important thing is equipment that the present invention uses and Technique is the most relatively easy, will not the expenditure of high cost, and utilizing of the elastic section bar of final molding is wide, such as vibration absorbing shoes Pad, sole or various needs elasticity and the product of shock-absorbing engineering, can bring beneficial effect to consumer.

Detailed description of the invention

Below by specific embodiment embodiments of the present invention are described:

Embodiment one: a kind of hybrid high-elastic shock-absorbing shoe-pad

A kind of method of the recycle and reuse utilizing discarded elastomeric material to make hybrid high-elastic shock-absorbing shoe-pad, described side Method mainly comprises the steps that

Process waste material: clout or dead meal are mixed, carry out air-drying dedusting roguing by aerator after high pressure rinse, so The filler particles that cutting and grinding become footpath grain to be 1-10mm is carried out afterwards with stirring-type cutting machine.

Be equipped with raw material: raw material mainly have the waste material of chopping as inserts, black material and expect in vain, the weight ratio wherein used Inserts: black material: white material is 2:8:5, described clout and waste material be rubber or plastic cement or EVA polyurethane foam or TDI or MDI or PU or the mixture between them, described black material is TDI or MDI, and the inserts taking 2 parts is standby, by black material and white material Carrying out mix and blend foaming, black material 50-70 part according to the deal ratio of 8:5, white material is polyether polyol 25-30 part, and amine is catalyzed Agent 0.1-0.3 part, polyamine class polyol crosslink agent 0.3-1 part, foam stabiliser 0.5-1.6 part, dibutyl tin laurate 0.05-0.1 part, low molecular polyether triol cross-linking agent 0.3-1.5 part.

Foaming in advance: be sufficiently stirred for foaming in advance, by raw material after ready black material and white material being placed in foam box Temperature be warming up to 25-40 DEG C, open stirring to foamed material whiting and substantially have rise sign cream time be 12S, rising Time is 160S；Inserts is also warming up to 25-40 DEG C.

Extrusion molding: by inserts and expect in extrusion shaping machine on foamed material in advance, get out the molding of up-down structure Mould, lower mold is die, designs die according to the shape of shoe pad, upper mold can be punch can also be flat-die.In lower mold Be pre-placed and cut and printed figuratum TPU or PE coating layer as basic unit, basic unit by list of modification surface layer, so Can be with printed patterns or mark etc in basic unit, then in basic unit, extrusion injects waste material filler particles and prefoam is former simultaneously Material, owing to foaming raw material is flow-like in advance, can closely permeate around waste material inserts when it flows, and is mixed by packed layer Ginseng clips together molding.

Punch forming: the down vertical punching press of last mold and lower mold matched moulds, carries out punch forming, Jing Guochong to material The inserts of pressure is mixed parcel or joins the molding together that is clipped in the middle, and becomes a kind of integral type consistent with die shape and has bullet Property and the shoe pad of incabloc function.

These hybrid high-elastic shock-absorbing shoe-pad naked eyes can be seen ginseng folder and be blended in the filler particles of foaming layer, and filler particles is not Only there is elasticity and incabloc function, also act as certain decoration function so that shoe pad has more individual character.

Embodiment two: the high-elastic shock-absorbing shoe-pad of a kind of hiding sandwich-type

A kind of method of the recycle and reuse utilizing discarded elastomeric material to make the high-elastic shock-absorbing shoe-pad of hiding sandwich-type, described Method mainly comprise the steps that

It is equipped with raw material: raw material mainly has the waste material of chopping as inserts, black material and to expect in vain, and described clout and waste material are Rubber or plastic cement or EVA polyurethane foam or TDI or MDI or PU or the mixture between them, described black material be TDI or MDI, appropriate inserts is standby, and according to following deal ratio black material and white material carried out mix and blend foaming, black material 50-70 part, White material is polyether polyol 25-30 part, amine catalyst 0.1-0.3 part, polyamine class polyol crosslink agent 0.3-1 part, foam stabilization Agent 0.5-1.6 part, dibutyl tin laurate 0.05-0.1 part, low molecular polyether triol cross-linking agent 0.3-1.5 part.

Foaming in advance: be sufficiently stirred for foaming in advance, by raw material after ready black material and white material being placed in foam box Temperature be warming up to 25-40 DEG C, open stirring to foamed material whiting and substantially have rise sign cream time be 12S, rising Time is 160S.

Extrusion molding: by inserts and expect in extrusion shaping machine on foamed material in advance, get out the molding of up-down structure Mould, lower mold is die, and with the shape of shoe pad always, mold is the punch or flat-die coordinated with lower mold, in lower mold It is pre-placed bed of cloth as basic unit, then at basic unit's extrusion first foaming raw material layer in advance, has then foamed in advance first On raw material layer, extrusion waste material filler particles is as filling interlayer, and then on filling interlayer, extrusion injection second is foamed former in advance again The bed of material, owing to foaming raw material is flow-like in advance, is wrapped in centre using filler particles as interlayer.

Punch forming: the down vertical punching press of last mold and lower mold matched moulds, carries out punch forming, Jing Guochong to material The inserts of pressure is hidden and is wrapped in first foaming raw material layer molding together with in the middle of second in advance foaming raw material layer in advance, becomes Integral type has four-layer structure and hides the high-elastic shock-absorbing shoe-pad of sandwich-type.

The foam (short cylinder, about 100-200cm3) of one piece of core of cutting, first weigh G, amount of plastic cup about 300ml Water, puts peeling zero setting on electronic balance, sticks in foam with blade and (completely soaks down to be pressed onto again cup by under water by it The end), reading electronic balance aobvious number V, G/V is exactly foam core density value, through density measure, after obtaining foaming raw material foaming in advance The foam density of foaming body be 0.05, foam judges substantially, low-temperature resistance contractility judges that the foaming body rebound degree of gained is 75%, hot strength is 86.5, and percentage elongation is 155.

The present invention uses different black material and white material to foam than in advance, refills waste material and processes as adjuvant, experience The product property that waste material → outfit raw material → foaming → extrusion molding in advance → punch forming obtains is the most entirely different, the neck of application Territory is the most entirely different, such as, when making high resilience PU seat cushion foam plastics, black material is the TDI of 40-50 part, and white material is polyethers (mn= 4000) 85-90 part, stabilizer 0.5-2 part, water 1-3 part, cross-linking agent 0.3-0.5 part, triethylenediamine 0.2-0.5 part, three second Amine 0.1-.0.3 part, inserts determines component with medicated cushion size, is advisable to be distributed on medicated cushion.

The present invention can make full use of discarded elastomeric material and section bar, in particular for some cuttings leftover pieces out both Each attribute that they are original can be retained, their characteristic can be played again so that the performance of the section bar finally given is more outstanding； The recoverying and utilizing method of the present invention does not carry out chemical reaction or burning to obsolete material simultaneously, does not results in secondary pollution, belongs to In environment-friendly type circulation and stress, become and abandon as treasured；The more important thing is that equipment that the present invention uses and technique are the most relatively easy, will not high become This expenditure, and utilizing of the elastic section bar of final molding is wide, and such as shock-absorbing shoe-pad, sole or various needs are elastic and keep away The product of shake engineering, can bring beneficial effect to consumer.

Claims

1. the method by elastomeric material recycle and reuse, it is characterised in that: described method mainly comprises the steps that

Being equipped with raw material: raw material mainly has the waste material of chopping as inserts, black material and to expect in vain, the weight ratio wherein used is to fill Material: black material: white material is 2:8:5, described clout and waste material are rubber or plastic cement or EVA polyurethane foam or TDI or MDI or PU Or the mixture between them, described black material is TDI or MDI, and the inserts taking 2 parts is standby, by black material and expects according to 8:5 in vain Deal ratio carry out mix and blend foaming, black material 50-70 part, white material is polyether polyol 25-30 part, amine catalyst 0.1- 0.3 part, polyamine class polyol crosslink agent 0.3-1 part, foam stabiliser 0.5-1.6 part, dibutyl tin laurate 0.05-0.1 Part, low molecular polyether triol cross-linking agent 0.3-1.5 part；

Foaming in advance: be sufficiently stirred for foaming in advance, by the temperature of raw material after ready black material and white material being placed in foam box Degree is warming up to 25-40 DEG C, and open stirring whitening to foamed material and substantially have the cream time rising sign is 12S, the rise time It is 160S；Inserts is also warming up to 25-40 DEG C；

Extrusion molding: by inserts and expect in extrusion shaping machine on foamed material in advance, get out the mould of up-down structure, Lower mold is pre-placed and has cut and printed figuratum TPU or PE coating layer as basic unit, then in basic unit Extrusion injects waste material filler particles and prefoam raw material simultaneously, owing to foaming raw material is flow-like in advance, can closely permeate useless Around material inserts, packed layer ginseng is clipped in inside molding together；

Punch forming: the down vertical punching press of last mold and lower mold matched moulds, carries out punch forming to material, through punching press Inserts is wrapped or joins the molding together that is clipped in the middle, and becomes integral type and has the elastic and product forms of incabloc function.

2. the method by elastomeric material recycle and reuse, it is characterised in that: described method mainly comprises the steps that

A kind of method by elastomeric material recycle and reuse the most according to claim 1 and 2, it is characterised in that: described The foaming of foaming raw material in advance after the foam density of foaming body be 0.05, rebound degree is 75%, and hot strength is 86.5, elongation Rate is 155.