CN103992587B - A kind of Wood-plastic profiles formula and production technology thereof of utilizing lake region resource - Google Patents

Abstract

The present invention relates to a kind of Wood-plastic profiles and preparation method thereof. The present invention takes full advantage of non-wood agriculture and forestry organic waste material resource, the problem that as stalk, cotton stalk, reed rod etc., can effectively solve agriculture and forestry organic waste material resource burning atmosphere pollution, pile up pollution of river water quality, higher value application rate is not high; And above-mentioned non-wood utilizes wire kneading machine processing by the present invention, directly utilize thread raw material to prepare Wood-plastic material, technique is simple, saves the energy; Thread non-wood has improved its hydrophobicity after pretreatment, can be mixing with thermoplastic molten, combine closely, and prepare the Wood-plastic material section bar that physical property is good. Compared with prior art, the present invention can make full use of non-wood agriculture and forestry organic waste material, be conducive to economize on resources, and protection of the environment, the good physical performance of the Wood-plastic profiles of preparation; The Wood-plastic profiles making is easy to processing, and its processing length is unrestricted, and production efficiency is high, function admirable, uses after the several years, can 100% recycling.

Description

A kind of Wood-plastic profiles formula and production technology thereof of utilizing lake region resource

Technical field

The present invention relates to a kind of wood plastic composite, specifically, relate to one utilize reed rod, stalk,Wood-plastic profiles prepared by the discarded lake region such as cotton stalk resource and preparation method thereof.

Background technology

Along with the raising of people's environmental protection and energy saving consciousness, be no longer satisfied with solid wooden floor board timber waste andThe high formaldehyde of consolidated floor discharges, in the urgent need to a kind of have energy-conservation, low cost, be easy to arrange novelConstruction material. Wood plastic composite is a kind of novel material, be by processing processed waste and old wood,The shell of sawdust, agricultural crop straw, nut, according to certain ratio, mixes through high temperature high with thermoplasticPress to process and make, wood plastic composite, taking Plant Powder and thermoplastic as primary raw material, can be alleviated stoneOil consumption, has used discarded wood dust in a large number, and the development of this material can be alleviated modern society pairThe consumption of petroleum resources, can reduce again the consumption of timber resources, is the effective of protection of the environment and reduction energy consumptionMeans. Wood plastic composite, compared with timber, has durable, good stability of the dimension, easy-formation, water suctionProperty is little, corrosion-resistant; There is the feature that cost is low, rigidity is high compared with plastics.

At present, Wood-plastic material Plant Powder used comprises wood dust, shell powder, bamboo powder, straw powder, chaffShell powder, other crops or plant stem-leaf powder etc., its source is very wide and cheap, makes full use ofThese materials itself be exactly administer landscaping environment a kind of approach.

Compared with conventional lignocellulose raw material, reed rod, stalk, cotton stalk etc. contain more cellulose,And the content of lignin is relatively low, mixing not too easy with thermoplastic resin, at present in industrial productionAlso seldom set it as the primary raw material of Wood-plastic material, but in actual production and life, throw aside every yearThe quantity of reed rod, stalk, cotton stalk very huge, exploitation non-wood is to protection of the environment, comprehensiveUtilize various resources to be of great immediate significance.

For the demand, the present invention proposes a kind of wood prepared by reed rod, stalk, cotton stalk that fully utilizesPlastic section bar and preparation method thereof.

Summary of the invention

The object of the present invention is to provide a kind of utilization to comprise the non-wood of reed rod, stalk, cotton stalkWood-plastic profiles of preparation and preparation method thereof.

Wood-plastic profiles of the present invention is to be made up of the raw material of following portions by weight:

Polyvinyl chloride resin powder: 50 parts;

Reclaim PE waste material: 50 parts;

Non-wood: 80～100 parts;

Calcareous filler: 50～70 parts;

Coupling agent: 0.5～1 part;

Stabilizing agent: 3～5 parts;

Antioxidant: 0.6～0.9 part;

PE wax: 0.9～1.3 part;

Stearic acid: 0.5～0.8 part;

Blowing agent: 0.8～1.5 part;

Foaming control agent: 6～8 parts.

Preferably, described Wood-plastic profiles is made up of the raw material of following portions by weight:

Polyvinyl chloride resin powder: 50 parts;

Reclaim PE waste material: 50 parts;

Non-wood: 90～100 parts;

Calcareous filler: 50～60 parts;

Coupling agent: 0.8～1 part;

Stabilizing agent: 3～5 parts;

Antioxidant: 0.6～0.8 part;

PE wax: 0.9～1.1 part;

Stearic acid: 0.6～0.8 part;

Blowing agent: 0.8～1.0 part;

Foaming control agent: 6 parts.

Wherein, described non-wood is the silk being obtained through wire kneading machine preparation by reed rod, stalk, cotton stalkShape material;

Reed rod, stalk, cotton stalk are difficult for granulation sprills, and being made into thinner powder needs consumptionTake more energy, therefore above-mentioned reed rod, stalk, cotton stalk are prepared into filamentary material. The described silk of rubbingMachine is the upper conventional one machinery of agricultural, be generally used for the discarded object of crops, as stalk, cotton stalk,Cornstalk, wheat straw etc. rub the broken feed of being processed into.

The draw ratio of described non-wood is 50-100:1-15, and its length is 3-15mm;

Thread non-wood can serve as wood material on the one hand and thermoplastic is evenly mixing, anotherIntensity and the toughness of the Wood-plastic material that can make as the enhancing mutual-assistance on the one hand further improve, and improve systemThe physical property of standby Wood-plastic profiles.

In addition, for ensureing that above-mentioned thread non-wood can evenly mix with thermoplastic resin, closely knotClose, non-wood of the present invention also needs to carry out pretreatment; Described pretreatment is by thread non-woodMatter fiber and coupling agent and calcareous filler are pre-mixed.

Specifically, described pretreatment is carried out as follows: thread non-wood is added to stir mixing machine,Then add coupling agent, and weight is the calcareous filler of total consumption quality 30%-70%, by above-mentioned formerMaterial mixes, and is heated to 130～150 DEG C simultaneously, insulation 2-3h;

In the present invention, described PE waste material can adopt the conventional recovery PE material in this area, special, optionalWith the PE plastic sheeting reclaiming in cotton field.

Polyvinyl chloride resin powder can be selected the conventional polyvinyl chloride resin powder in this area.

Described calcareous filler can be selected calcium carbonate. In Wood-plastic material, add appropriate filler, can makeIt has good feel, the dry and not aobvious light of light face, and heat-resisting pressure is high, and permanent deformation is little. ExcellentSelect precipitated calcium carbonate powder or slight activated calcium carbonate. Described precipitated calcium carbonate is that settling volume isThe calcium carbonate of 2.4-2.8mL/g is generally that (main component is oxygen by raw material calcining generation lime such as lime stonesChange calcium) and carbon dioxide, then the digestion lime generation milk of lime (main component is calcium hydroxide) that adds water,And then pass into carbon dioxide carbonization milk of lime generation precipitation of calcium carbonate, finally by dehydration, dry and pulverizingAnd make; Or first carry out metathesis reaction generation precipitation of calcium carbonate with sodium carbonate and calcium chloride, then through de-Water, dry and pulverize and make. The granularity of described precipitated calcium carbonate is 2-1000nm; Preferred size isThe ultramicrofine light calcium carbonate of 2-50nm. Described activated calcium carbonate is to improve lightweight carbon prepared by process conditionsAcid calcium powder, can select activated calcium carbonate product common on market, as Jingxing, Shijiazhuang calcium carbonate factory producesCalcium powder.

Described coupling agent can be selected organic coupling agent or inorganic coupling agent, as organosilan, titanate esters, differentCyanate, maleic anhydride or maleic anhydride modified polymer, silicate etc., preferably maleic anhydride graft is poly-Propylene, the mixture of sodium metasilicate and titanate esters, wherein maleic anhydride inoculated polypropylene, sodium metasilicate and metatitanic acidThe mass ratio of the consumption of ester is 1-2:1-2:1-3;

PVC at high temperature processes, and very easily emits HCL, forms unsettled polyene structure. Meanwhile,HCL has autocatalysis, can make PVC further degrade. In addition, if aerobic exist or have iron,Aluminium, zinc, tin, copper and cadmium plasma exist, all can be to the PVC catalytic action of having degraded, accelerate that it is aging.Therefore will there are various bad phenomenon in plastics, as variable color, distortion, be full of cracks, mechanical strength decline, electricity is exhaustedEdge hydraulic performance decline, embrittlement etc. In order to address these problems, in formula, must add stabilizing agent, especially hotStabilizing agent is essential especially. The stabilizing agent that PVC uses comprises heat stabilizer, antioxidant, ultraviolet radiation absorptionAgent and chelating agent. When formula Design, require to select different cultivars according to goods instructions for use and processing technology,The stabilizing agent of varying number. In the present invention, described stabilizing agent is that calcium zinc series stabilizing agent or terres rares are stableAgent, can adopt the commercial aforementioned stable agent in this area, as Sen Deli plastic additive Co., Ltd of ShenzhenCZX series nontoxic calcium zinc stabilizing agent etc.; The excellent machining performance of rare-earth stabilizer, can select Jinchang, JinanThe dustless rare earth complex heat stabilizer of PVC of producing along Chemical Co., Ltd..

Antioxidant can be selected the conventional antioxidant in this area, preferably butyl hydroxy toluene and four [methyl-β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester] combination of pentaerythritol ester, mass ratio be 1-2:1；

PE wax is Tissuemat E, and molecular weight is generally 1500～50000, does not on average surpass 10000, is waxShape resin. Outward appearance is white or yellow granule. Tissuemat E heat endurance, chemical stability and electricalCan be all fine, melt viscosity and hardness, all close to paraffin, have stronger internal lubrication effect.

Stearic acid is also a kind of conventional lubricant, and it can serve as external lubricant, mainly by with wood powderMix, cover equably wood powder surface, thereby improve the bonding of itself and polymeric matrix. Described tristearinThe conventional stearic acid in this area is selected in acid.

Foaming control agent is polyacrylate foaming control agent, can select the conventional type in this area, asACR foaming control agent; As the phenylethylene of Shandong Rui Feng macromolecular material Co., Ltd production.

Described blowing agent is azo amide-type heat release type blowing agent, Celogen Az as conventional in this area.

For this reason, the present invention also provides the preparation method of above-mentioned Wood-plastic profiles.

The preparation method of described Wood-plastic profiles comprises the following steps:

1) non-wood is added to stir mixing machine, then add coupling agent, and weight is total consumptionThe calcareous filler of quality 30%-70%, mixes above-mentioned raw materials, is heated to 130～150 DEG C simultaneously, protectsTemperature 20-100min;

2) recovery PE waste material is heated to 100-150 DEG C, adds blowing agent and foaming control agent, mixEvenly, then add stir mixing machine to mix with surplus stock according to umber proportioning, temperature maintenance 130～150 DEG C, mixing 30-200min, then be cooled to 70～80 DEG C and emit;

3) raw material mixing is added to extruder, is heated to 140～180 DEG C and extrudes, through grinding tool sizing,Cooling, traction, scale, cut into section bar.

The length of section bar, width, thickness can be determined arbitrarily according to customer requirement.

Wood-plastic profiles tool of the present invention has the following advantages:

1) take full advantage of non-wood agriculture and forestry organic waste material resource, as stalk, cotton stalk, reed rod etc.,Can effectively solve agriculture and forestry organic waste material resource burns atmosphere pollution, piles up pollution of river water quality, high-valued profitBy the not high problem of rate; And the present invention utilizes wire kneading machine processing by above-mentioned non-wood, directly utilizationThread raw material is prepared Wood-plastic material, and technique is simple, saves the energy;

2) Wood-plastic profiles of the present invention, is easy to processing, and its processing length is unrestricted, and production efficiency is high,Function admirable (zero formaldehyde, waterproof, protection against the tide, mildew-resistant, mothproof), be in the future replace common density board,The desired decoration material of multi-layered board, used after the several years, can 100% recycling.

3) Wood-plastic profiles of the present invention, its production technology is simple, easy operating, good stability, is easy to addWork.

Detailed description of the invention

Following examples are only for the present invention is described, but are not used for limiting invention scope of the present invention. This neckThe technician in territory can make some nonessential improvement and tune to the present invention according to the content of foregoing inventionWhole.

If no special instructions, the method adopting is the conventional method in this area. What the present embodiment adopted establishesStandby is the conventional equipment in this area. Wherein the title of embodiment 1-4 each raw material used and manufacturer asShown in table 1:

Reclaiming PE waste material is the PE film that derives from cotton field, and the granularity all obtaining after granulation is 40-80Object powder;

PE wax is selected the Tissuemat E of Jiangyin Hong Sheng plastic additive factory; Blowing agent selects Hangzhou marine rainbow to become more meticulousThe Celogen Az that work Co., Ltd produces;

Coupling agent is the kh-792 coupling agent of Qingdao Xu Xin Chemical Co., Ltd.;

Antioxidant is that upper hypo is with 1024 of that Chemical Co., Ltd.;

ACR foaming control agent is the product of Shandong Rui Feng macromolecule Co., Ltd.

Raw material and the producer of table 1 embodiment 1-4

Embodiment 1

Take raw material according to following weight proportion:

Polyvinyl chloride resin powder: 50 parts;

Reclaim PE waste material: 50 parts;

Non-wood: 100 parts;

Calcareous filler: 50 parts;

Coupling agent: 0.8 part;

Stabilizing agent: 3 parts;

Antioxidant: 0.6 part;

PE wax: 1.1 parts;

Stearic acid: 0.8 part;

Blowing agent: 0.8 part;

Foaming control agent: 6 parts.

Wherein, non-wood obtains reed after wire kneading machine is processed, and its draw ratio is50-100:1-15, its length is 5-15mm.

Then utilize following methods to prepare Wood-plastic profiles:

1) non-wood is added to stir mixing machine, then add coupling agent, and weight is total consumptionThe calcareous filler of quality 30%-70%, mixes above-mentioned raw materials, is heated to 130 DEG C simultaneously, insulation80min；

2) recovery PE waste material is heated to 120 DEG C, adds blowing agent and foaming control agent, mix,Then add stir mixing machine to mix with surplus stock according to umber proportioning, temperature keeps 140 DEG C, mixing150min, then be cooled to 80 DEG C and emit;

3) raw material mixing is added to extruder, is heated to 180 DEG C and extrudes, through grinding tool sizing, cooling,Traction, scale, cut into section bar. Section bar specification 130mmx77mm column.

Embodiment 2

Take raw material according to following weight proportion:

Polyvinyl chloride resin powder: 50 parts;

Reclaim PE waste material: 50 parts;

Non-wood: 90 parts;

Calcareous filler: 50 parts;

Coupling agent: 0.8 part;

Stabilizing agent: 3 parts;

Antioxidant: 0.6 part;

PE wax: 0.9 part;

Stearic acid: 0.8 part;

Blowing agent: 1.0 parts;

Foaming control agent: 6 parts.

Wherein, non-wood obtains cotton stalk after wire kneading machine is processed, and its draw ratio is50:10-15, its length is 3-10mm.

Then utilize following methods to prepare Wood-plastic profiles:

1) non-wood is added to stir mixing machine, then add coupling agent, and weight is total consumptionThe calcareous filler of quality 30%-70%, mixes above-mentioned raw materials, is heated to 150 DEG C simultaneously, insulation20min；

2) recovery PE waste material is heated to 150 DEG C, adds blowing agent and foaming control agent, mix,Then add stir mixing machine to mix with surplus stock according to umber proportioning, temperature keeps 150 DEG C, mixing30min, then be cooled to 70 DEG C and emit;

3) raw material mixing is added to extruder, is heated to 160 DEG C and extrudes, through grinding tool sizing, cooling,Traction, scale, cut into section bar. Section bar specification 130mmx77mm column.

Embodiment 3

Take raw material according to following weight proportion:

Polyvinyl chloride resin powder: 50 parts;

Reclaim PE waste material: 50 parts;

Non-wood: 80 parts;

Calcareous filler: 70 parts;

Coupling agent: 1 part;

Stabilizing agent: 5 parts;

Antioxidant: 0.9 part;

PE wax: 1.3 parts;

Stearic acid: 0.8 part;

Blowing agent: 1.5 parts;

Foaming control agent: 8 parts.

Wherein, non-wood obtains reed and maize straw after wire kneading machine is processed, its major diameterThan being 100:1-15, its length is 3-15mm.

Then utilize following methods to prepare Wood-plastic profiles:

1) non-wood is added to stir mixing machine, then add coupling agent, and weight is total consumptionThe calcareous filler of quality 30%, mixes above-mentioned raw materials, is heated to 130 DEG C simultaneously, insulation 100min;

2) recovery PE waste material is heated to 150 DEG C, adds blowing agent and foaming control agent, mix,Then add stir mixing machine to mix with surplus stock according to umber proportioning, temperature keeps 150 DEG C, mixing200min, then be cooled to 80 DEG C and emit;

3) raw material mixing is added to extruder, is heated to 180 DEG C and extrudes, through grinding tool sizing, cooling,Traction, scale, cut into section bar. Section bar specification 130mmx77mm column.

Embodiment 4

Take raw material according to following weight proportion:

Polyvinyl chloride resin powder: 50 parts;

Reclaim PE waste material: 50 parts;

Non-wood: 90 parts;

Calcareous filler: 60 parts;

Coupling agent: 0.8 part;

Stabilizing agent: 4 parts;

Antioxidant: 0.8 part;

PE wax: 1.0 parts;

Stearic acid: 0.75 part;

Blowing agent: 1.0 parts;

Foaming control agent: 7 parts.

Wherein, non-wood obtains reed, wheat stalk and cotton stalk after wire kneading machine is processed,Its draw ratio is 50-100:1-15, and its length is 3-15mm.

Then utilize following methods to prepare Wood-plastic profiles:

1) non-wood is added to stir mixing machine, then add coupling agent, and weight is total consumptionThe calcareous filler of quality 70%, mixes above-mentioned raw materials, is heated to 130 DEG C simultaneously, insulation 80min;

2) recovery PE waste material is heated to 130 DEG C, adds blowing agent and foaming control agent, mix,Then add stir mixing machine to mix with surplus stock according to umber proportioning, temperature keeps 130 DEG C, mixing100min, then be cooled to 80 DEG C and emit;

3) raw material mixing is added to extruder, is heated to 140 DEG C and extrudes, through grinding tool sizing, cooling,Traction, scale, cut into section bar. Section bar specification 130mmx77mm column.

Properties of product prepared by embodiment 1-4 are as shown in table 2:

The performance of table 2 Wood-plastic profiles

Obviously, compared with wood plastic composite of the prior art, Wood-plastic material building of the present inventionThe intensity of template is high, toughness is large, and production efficiency is high, uses after the several years, can 100% recycling.

Claims (5)

1. a Wood-plastic profiles, is characterized in that, is to be made up of the raw material of following portions by weight:

Polyvinyl chloride resin powder: 50 parts;

Reclaim PE waste material: 50 parts;

Non-wood: 80～100 parts;

Calcareous filler: 50～70 parts;

Coupling agent: 0.5～1 part;

Stabilizing agent: 3～5 parts;

Antioxidant: 0.6～0.9 part;

PE wax: 0.9～1.3 part;

Stearic acid: 0.5～0.8 part;

Blowing agent: 0.8～1.5 part;

Foaming control agent: 6～8 parts;

Described non-wood is the filamentary material being obtained through wire kneading machine preparation by reed rod, stalk, cotton stalk;Described non-wood obtains through pretreatment; Pretreatment is by described filamentary material and above-mentioned raw materialsCoupling agent, the calcareous filler of total consumption 30%-70% be pre-mixed.

2. Wood-plastic profiles as claimed in claim 1, is characterized in that, described Wood-plastic profiles is by following heavyThe raw material of amount umber is made:

Polyvinyl chloride resin powder: 50 parts;

Reclaim PE waste material: 50 parts;

Non-wood: 90～100 parts;

Calcareous filler: 50～60 parts;

Coupling agent: 0.8～1 part;

Stabilizing agent: 3～5 parts;

Antioxidant: 0.6～0.8 part;

PE wax: 0.9～1.1 part;

Stearic acid: 0.6～0.8 part;

Blowing agent: 0.8～1.0 part;

Foaming control agent: 6 parts.

3. Wood-plastic profiles as claimed in claim 1, is characterized in that, the major diameter of described non-woodThan being 50-100:1-15.

4. the Wood-plastic profiles as described in claim 1 or 3, is characterized in that, described non-woodLength is 3-15mm.

5. the preparation method of the Wood-plastic profiles as described in claim 1-4 any one, is characterized in that,Comprise the following steps successively:

1) non-wood is added to stir mixing machine, then add coupling agent, and weight is total consumptionThe calcareous filler of quality 30%-70%, mixes above-mentioned raw materials, is heated to 130～150 DEG C simultaneously, protectsTemperature 20-100min;

2) recovery PE waste material is heated to 100-150 DEG C, adds blowing agent and foaming control agent, mixEvenly, then add stir mixing machine to mix with surplus stock according to umber proportioning, temperature maintenance 130～150 DEG C, mixing 30-200min, then be cooled to 70～80 DEG C and emit;

3) raw material mixing is added to extruder, is heated to 140～180 DEG C and extrudes, through grinding tool sizing,Cooling, traction, scale, cut into section bar.