阅读说明：本技术 一种生物质橡胶复合材料的制备工艺 (A kind of preparation process of biomass rubber composite material ) 是由 许民 韩丽娜 李亚兰 王福华 孟现允 石艳梅 沈欢 庄凯侠 魏鹏 于 2019-08-23 设计创作，主要内容包括：本发明公开了一种生物质橡胶复合材料的制备工艺,以木粉、秸秆粉、竹粉等以及轮胎合成橡胶为原料,采用橡胶制品的加工工艺：混炼,开炼和硫化成型,制得生物质橡胶环保复合材料,本发明工艺简单,操作方便,整个过程不掺入胶黏剂,直接采用橡胶交联成型,经济且环保,制得的生物质橡胶复合材料强度好,弹性高,吸水膨胀率低,无甲醛释放。(The invention discloses a kind of preparation processes of biomass rubber composite material, using wood powder, straw powder, bamboo powder etc. and tire synthetic rubber as raw material, using the processing technology of rubber product: being kneaded, mill and sulfidization molding, are made biomass Rubber environment-friendlycomposite composite material, and present invention process is simple, it is easy to operate, whole process does not mix adhesive, directlys adopt rubber cross molding, cost-effective and environmentally friendly, biomass rubber composite material intensity obtained is good, elastic high, expansion rate of water absorption is low, formaldehydeless release.)

1. a kind of preparation process of biomass rubber composite material, which is characterized in that including major ingredient and auxiliary material, the major ingredient packet Include: the biological materials such as timber, bamboo wood, crops, manufactured wood powder, straw powder, bamboo powder etc. with can be straight with outdoor weather resistance Connecing the tire synthetic rubber used is raw material, and obtained to be free of adhesive, uniform in material, intensity is good, and elasticity is high, expansion rate of water absorption Low, the environment protection multifunctional biomass rubber composite material of formaldehydeless release, preparation process is simple, easy to operate.

2. a kind of preparation process of biomass rubber composite material as described in claim 1, it is characterised in that: the auxiliary material is Rubber, the rubber is as adhesive sulfidization molding, without the introducing of other adhesives, formaldehydeless release.

3. a kind of preparation process of biomass rubber composite material as described in claim 1, it is characterised in that: utilize manufacture rubber The method of glue is kneaded biological material and rubber, keeps material more uniform, mechanics of materials intensity is good.

4. a kind of preparation process of biomass rubber composite material as described in claim 1, it is characterised in that: rubber itself bullet Property it is good, and do not absorb water, while assigning elastic properties of materials, biological material wrapped up, overcome biological material expansion rate of water absorption high The shortcomings that.

5. a kind of preparation process of biomass rubber composite material as described in claim 1, which is characterized in that its preparation process It is as follows:

One, material preparation technology:

(1) prepared by wood powder: the brush wood, undersized log and industrial wood waste of poplar being broken into wood up to specification using pulverizer Powder, and it is spare by the wood powder that mesh screen filters out -100 mesh of 80 mesh, 8-16h need to be dried at 103 DEG C using preceding wood powder, to aqueous Rate drops to 3% or less.

(2) prepared by bamboo powder: bamboo being broken into bamboo powder up to specification using pulverizer, and filters out -100 mesh of 80 mesh by mesh screen Bamboo powder it is spare, 8-16h need to be dried at 103 DEG C using preceding bamboo powder, drop to 3% or less to moisture content.

(3) prepared by sizing material: the tire synthetic rubber that preferred tire production producer purchases, main component have: natural rubber, butylbenzene rubber Glue, butadiene rubber, sulphur, carbon black, stearic acid, anti-aging agent and operation oil, ratio is it is known that be cut into 50mm for tire synthetic rubber The rubber block of × 50mm is spare.

(4) ratio controls: the proportional region for determining rubber and biomass powder is 8:2-5:5, according to the volume requirement of mixer, Gross mass is scheduled on 1600g.

Two, calendering process:

The spare sizing material of well cutting is proportionally put into use for laboratory 3L mixer, the too low then rubber molecular chain of melting temperature It is not easy to flow, sizing material is not easy to be plasticized, and the excessively high then rubber of temperature is easy presulfurization, is 60-70 DEG C by water-cool control melting temperature； Revolving speed is too low, and rubber is not easy shearing plasticizing, and revolving speed is excessively high, sheared fierce then easy local heat, and caused the part of rubber pre- Vulcanization, controlling rotor speed by governor is 20-30r/min, and plasticate synthetic rubber 3min；Suspend machine, certain ratio is added The biological material of example, the control of mixing time are to be uniformly mixed based on material, and to avoid rubber presulfurization, mixing time is not Easily too long, controlling two kinds of material mixing times is 5-7min, later takes out material from mixer.

Three, mill technique:

Control open mill spacing is 2mm, the material of taking-up is put into mill on open mill, mill number is excessive, then sizing material can be sent out It is viscous, and the mechanical property of vulcanizate can reduce, controlling every sheet mill number is 3-5 times.

Four, sulfuration process:

The good sheet material of mill is cut out and is put into mold, control curing temperature is 160 DEG C, and vulcanization is segmentation pressurization, Post-cure, segmentation are pressurized with conducive to pre- heat flow early period of sizing material and later period pressurization sizing, and secondary pressurized is conducive to sizing material Exhaust, avoids material from being bubbled, material elder generation precompressed 1min, pressure 4MPa, repressurization 3min, pressure 15MPa, later lower platen Decline pressure release, repressurization 5min, pressure 15MPa；By material, cooling is displayed for 24 hours at room temperature later, has both been finished product.

Technical field

Biomass rubber composite material is manufactured using compounding rubber moulding process the present invention relates to a kind of.

Technical background

Biomass rubber composite material is a kind of novel and multifunctional environment-friendly materials just put forward in recent years, and is ground both at home and abroad The main research and utilization wood-based plate heat pressing process of the person of studying carefully manufactures biomass rubber multi-functional environment-protection composite material, mainly utilizes adhesive Complete two kinds of materials bonding molding, complex process, higher cost, and in adhesive formaldehyde burst size it is also higher, inadequate ring It protects.The present invention, which is mainly inquired into, manufactures biomass rubber composite material with compounding rubber moulding process, uses for reference rubber processing, benefit Processing and forming is completed with the crosslinking of rubber, the filling of adhesive is eliminated, has opened up the new approaches of biomass rubber processing.

Summary of the invention

Present invention solves the technical problem that being, with wood powder made of the biological materials such as timber, bamboo wood, crops, stalk Powder, bamboo powder etc. and tire synthetic rubber are raw material, manufacture biomass rubber composite material, process flow is will first to synthesize rubber Glue is cut into the fritter of certain specification, is then placed in mixer and plasticates, after rubber softening, after placing into a certain amount of drying Biological material is kneaded, and the material after mixing is put mill on a mill later and spreads mould, the sulphur in vulcanizer at sheet material Chemical conversion type, it is cooling, it is finally made biomass rubber composite material.

The present invention uses the mixed refining process method of rubber, with wood made of the biological materials such as timber, bamboo wood, crops Powder, straw powder, bamboo powder etc. and the tire synthetic rubber that can be used directly with outdoor weather resistance are raw material, using rubber product Processing technology: be kneaded, mill and sulfidization molding, it is obtained to be free of adhesive, formaldehydeless release, the biomass rubber that technique simplifies Glue environment-friendly composite material.

Its process flow and process control condition are as follows:

One, material preparation technology:

(1) prepared by biomass powder: will be broken into using pulverizer with biological materials such as timber, bamboo wood, crops up to specification Wood powder, and by mesh screen filter out -100 mesh of 80 mesh powder it is spare, moisture content≤3% need to be dried using preceding powder.

(2) prepared by sizing material: the tire synthetic rubber that preferred tire production producer purchases, main component have: natural rubber, butylbenzene rubber Glue, butadiene rubber, sulphur, carbon black, stearic acid, anti-aging agent and operation oil, ratio it is known that by synthetic rubber be cut into 50mm × The rubber block of 50mm is spare.

(3) ratio controls: according to the performance requirements such as the hardness of material, elasticity and the forming requirements of material, adjusting rubber and life The ratio of substance powder are as follows: 8:2-5:5.

Two, calendering process:

The spare sizing material of well cutting is proportionally put into use for laboratory 3L mixer, the too low then rubber molecular chain of melting temperature It is not easy to flow, sizing material is not easy to be plasticized, and the excessively high then rubber of temperature is easy presulfurization, is 60-70 DEG C by water-cool control melting temperature； Revolving speed is too low, and rubber is not easy shearing plasticizing, and revolving speed is excessively high, sheared fierce then easy local heat, and caused the part of rubber pre- Vulcanization, controlling rotor speed by governor is 20-30 r/min, and plasticate synthetic rubber 3min；Suspend machine, certain ratio is added The biological material of example, the control of mixing time are to be uniformly mixed based on material, and to avoid rubber presulfurization, mixing time is not Easily too long, controlling two kinds of material mixing times is 5-7min, later takes out material from mixer.

Three, mill technique:

Control open mill spacing is 2mm, the material of taking-up is put into mill on open mill, mill number is excessive, then sizing material can be sent out It is viscous, and the mechanical property of vulcanizate can reduce, controlling every sheet mill number is 3-5 times.

Four, sulfuration process:

The good sheet material of mill is cut out and is put into mold, control curing temperature is 160 DEG C, and vulcanization is segmentation pressurization, Post-cure, segmentation are pressurized with conducive to pre- heat flow early period of sizing material and later period pressurization sizing, and secondary pressurized is conducive to sizing material Exhaust, avoids material from being bubbled.

The biomass Rubber environment-friendlycomposite composite material produced by above-mentioned process flow and control condition, it is uniform in material, it is sulfided into The material appearance of type is glossiness black, and elastic properties of materials is good, good stability of the dimension, and expansion rate of water absorption is than biomass-based material Low, formaldehydeless release is good environment friendly composite material.

Detailed description of the invention

Fig. 1 is the perspective, cut-away view of biomass rubber composite material, wherein mark: 1- rubber, 2- biomass powder.

Fig. 2 is present invention process flow diagram.

Below with two embodiments, select two different biological materials: wood powder and bamboo powder are implemented specifically It is bright.

Specific embodiment