CN102108162A - Preparation method of nano PS (polystyrene) foaming composite material - Google Patents
Preparation method of nano PS (polystyrene) foaming composite material Download PDFInfo
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- CN102108162A CN102108162A CN2010106125799A CN201010612579A CN102108162A CN 102108162 A CN102108162 A CN 102108162A CN 2010106125799 A CN2010106125799 A CN 2010106125799A CN 201010612579 A CN201010612579 A CN 201010612579A CN 102108162 A CN102108162 A CN 102108162A
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Abstract
The invention discloses a preparation method of a nano PS (polystyrene) foaming composite material. The material is formed by mixing, granulating and extruding the following raw materials in parts by weight: 20-80 parts of wood fiber powder, 50-100 parts of PS particles, 1-5 parts of foaming agent, 1-5 parts of foaming adjuvant, 1-10 parts of coupling agent, 1-5 parts of lubricating agent and 1-10 parts of nano SiO2, wherein, the PS is composed of modified PS particles, namely, a film-forming polymer substance coating is coated on the PS particles, and the film-forming polymer substance is chosen from one of a polyurethane (PUR) pre-polymer, an acrylic resin pre-polymer and a vinyl acetate (VA) polymer. The preparation method has the advantages that the mechanical properties of a PS foaming profile are improved, the tensile strength, impact strength and bending property of the composite material are obviously enhanced, and especially the toughness of the product is increased.
Description
Skill wood field
The present invention relates to technical field of composite materials, specifically, that relate to is a kind of preparation method of nanometer PS foam composite material.
Background technology
Wood plastic composite (WPC) is compound by wood powder or xylon and thermoplastic polymer, the type material that obtains by the melt-processed moulding.Wood plastic composite has both the major advantage of thermoplastics and timber, have anticorrosion, moistureproof, anti-ly damage by worms, the dimensional stability height, do not ftracture, advantage such as warpage not.The Application and Development of wood plastic composite makes Plastic Resin or renewable resources such as waste or used plastics and wood working waste, helps to solve white pollution and remedies inadequate forest resources.Along with multinational forest reserves poorness, wood supply are in short supply, Wood-plastic material is subjected to increasing the attention and application naturally.The wood plastic wood-imitated products has been widely used in aspects such as building materials, packing, transportation, decoration abroad.In recent years, at home and abroad the technological development of Wood Plastics Composite Product and application development are rapid.But, and abroad to compare, China's Wood-Plastics Composite is started late, and also exists the Wood flour filled amount of wood-plastic products little at present, and cost is higher, and cost performance is low, lacks bigger gaps such as price competitiveness on market.
Wood plastic composite is made up of plastic substrate, wood materials and additive three parts.Because wood materials at high temperature decomposes easily, so as the plastics of matrix lower fusing point must be arranged, what research and practical application were more at present is thermoplastic resin and waste and old reclaimed materials thereof such as PP, PVC, PE.Therefore and the fragility of polystyrene (PS) and PS base wood-plastic composite material is big, to the research of PS base wood-plastic composite material with use less.
Additive is some auxiliary agents of giving matrix material processing characteristics or property, as coupling agent, compatilizer, stablizer, whipping agent, fire retardant etc.The composition of wood plastic composite has very big influence to the aspects such as performance, the course of processing and cost of goods.
As Chinese patent application number be: 200610039984, name is called: a kind of inorganic nano-particle composite wood-plastic material, mention in this patent: " a kind of inorganic nano particle composite plastic-wood materials is characterized in that being made up of following each component: (A) plastics of mass percent 24-98%; (B) natural fiber of mass percent 0-70%; (C) inorganic nano-particle of mass percent 1-30%.With said components through high-speed mixing, extrude, operations such as injection moulding and mold pressing can make finished product.”
And for example, Chinese invention patent application name is called: the working method of polystyrene foaming section, application number: 200910053467.1, mention in this patent: " the present invention is a kind of working method of polystyrene foaming section; the mixture with general purpose polystyrene and impact resistant polystyrene is a major ingredient; nano level B silicon carbide and nano level light active calcium carbonate are auxiliary material; and auxiliary agent and tinting material mix; and working method comprises the steps: the first step: auxiliary agent and tinting material are mixed earlier; again with major ingredient, dried auxiliary material mixes stirring, makes compound; Second step: compound is extruded machine-shaping in forcing machine; The 3rd step: carry out surface working by setting lines,, make polystyrene foaming section by the size cutting.”
PS nano wood-plastic material is that the PS section bar is a material of new generation behind the PVC foam material, substitutes timber fully.The performance that has not only kept the conventional wooden finishing material fully, more with its environmental protection, light grain husk, high strength, anticorrosion, prevent the frog, the advantage that can not intend such as sturdy and durable.
Summary of the invention
The objective of the invention is to solve above-mentioned deficiency of the prior art, a kind of preparation method of nanometer PS foam composite material is provided, improve poor toughness in the PS Wood-plastic material, improve comprehensive mechanical property.
For realizing above-mentioned purpose, the preparation method of nanometer PS foam composite material of the present invention passes through mixing, granulation extrusion moulding by following raw material, and raw material and parts by weight thereof are:
Wood fiber powder, 20-80 part;
The PS particle, 50-100 part;
Whipping agent, 1-5 part;
Promoter for blowing agent, 1-5 part;
Coupling agent, 1-10 part;
Lubricant, 1-5 part;
Nanometer SiO
2, 1-10 part.
Further, can also comprise fire retardant in the described raw material, its consumption is 10-15 part.
Further, can also comprise tinting material in the described raw material, its consumption is 1-5 part.
Further, can also comprise ultra-violet stabilizer in the described raw material, its consumption is 1-5 part.
Further, described polystyrene (PS) is a modification PS particle, promptly is coated with film forming polymer substance coating on this PS particle, and described film forming polymer substance can be chosen as base polyurethane prepolymer for use as, acrylic resin performed polymer, vinyl acetate polymer etc.
Further, described wood fiber powder granularity is 800～300 orders, water content 0.01～1.0%.
Further, described coupling agent is the aluminic acid ester.
Further, described lubricant is a stearic acid.
Further, described whipping agent is the AC whipping agent.
The present invention can improve the mechanical property of PS foamed profile, and the tensile strength of matrix material, shock strength and bending property significantly improve, and especially increases the toughness of goods.The present invention adopts nanometer SiO
2Carry out toughness reinforcing to the PS matrix, pass through coupling agent simultaneously, lubricants etc. are adjusted the correlated performance of material, and, the present invention has also adopted through pretreated PS particle, by the relevant polymer substance coating of coating on this particulate surface, this coating has the thermal softening of being subjected to and produces the ability that suitable type becomes, can be along with being heated foaming process and the deformation of internal layer polystyrene are expanded, and the upper layer component in moulding process high temperature and pressure under the top layer chemical crosslink reaction can take place between mutually, reactive force between expanded polystyrene particle is enhanced, make the toughness of polystyrene foamed goods, compressive strength, shock-resistance can both be greatly improved.
Embodiment
The technical solution of the present invention is further explained below in conjunction with embodiment, but following content is not intended to limit the scope of the invention.The part that does not below have special instruction is this area technological operation commonly used and reagent commonly used, carries out according to the operation that illustrates in the general technology and the handbook that dispatches from the factory.
Embodiment 1
Present embodiment provides a kind of preparation method of nanometer PS foam composite material, adopts following raw material weight proportioning:
Wood fiber powder, 80 parts;
The PS particle, 100 parts;
Whipping agent, 5 parts;
Promoter for blowing agent, 5 parts;
Coupling agent, 10 parts;
Lubricant, 5 parts;
Nanometer SiO
2, 10 parts;
Described polystyrene (PS) is a modification PS particle, promptly is coated with film forming polymer substance coating on this PS particle, and described film forming polymer substance can be chosen as base polyurethane prepolymer for use as, acrylic resin performed polymer, any one in the vinyl acetate polymer etc.
With modification PS particle proportionally with wood fiber powder, whipping agent, promoter for blowing agent, coupling agent, nanometer SiO
2Deng mixing, then by the granulation extrusion moulding.The matrix material that present embodiment obtains has good mechanical property, and the tensile strength of matrix material, shock strength and bending property significantly improve.
Embodiment 2
Present embodiment provides a kind of preparation method of nanometer PS foam composite material, adopts following raw material weight proportioning:
Wood fiber powder, 50 parts;
The PS particle, 60 parts;
Whipping agent, 4 parts;
Promoter for blowing agent, 2 parts;
Coupling agent, 8 parts;
Lubricant, 3 parts;
Nanometer SiO
2, 8 parts;
Fire retardant, 10 parts;
Described polystyrene (PS) is a modification PS particle, promptly is coated with film forming polymer substance coating on this PS particle, and described film forming polymer substance can be chosen as base polyurethane prepolymer for use as, acrylic resin performed polymer, vinyl acetate polymer etc.
The present embodiment preparation process adopts the preparation of general foamable polymer, and by mixing, extrusion moulding, the matrix material that obtains also has flame retardant effect except tensile strength, shock strength and bending property significantly improve.
Embodiment 3
Present embodiment provides a kind of preparation method of nanometer PS foam composite material, adopts following raw material weight proportioning:
Wood fiber powder, 20 parts;
The PS particle, 50 parts;
Whipping agent, 1 part;
Promoter for blowing agent, 1 part;
Coupling agent, 3 parts;
Lubricant, 1 part;
Nanometer SiO
2, 5 parts;
Fire retardant, 10 parts;
Ultra-violet stabilizer, 3 parts;
Described polystyrene (PS) is a modification PS particle, promptly is coated with film forming polymer substance coating on this PS particle, and described film forming polymer substance can be chosen as base polyurethane prepolymer for use as, acrylic resin performed polymer, any one in the vinyl acetate polymer etc.
The present embodiment preparation process adopts the preparation of general foamable polymer, by mixing, extrusion moulding, the matrix material that obtains also has fire-retardant and the uvioresistant effect except tensile strength, shock strength and bending property significantly improve, and the toughness of composite product is improved.
In the foregoing description:
Described wood fiber powder granularity is 800～300 orders, water content 0.01～1.0%.
Described coupling agent is the aluminic acid ester.
Described lubricant is a stearic acid.
Described whipping agent is the AC whipping agent.
Scope of the present invention is not subjected to the restriction of described specific embodiments, and described embodiment is only desired also to comprise the method and the component of functional equivalent in the scope of the invention as the single example of illustrating all respects of the present invention.In fact, except content as herein described, those skilled in the art can easily grasp multiple improvement of the present invention with reference to description above.Described improvement also falls within the scope of appended claims.Every piece of reference mentioned above is listed this paper in as a reference all in full.
Claims (8)
1. the preparation method of a nanometer PS foam composite material is characterized in that passing through mixing, granulation extrusion moulding by following raw material, and raw material and parts by weight thereof are:
Wood fiber powder, 20-80 part;
The PS particle, 50-100 part;
Whipping agent, 1-5 part;
Promoter for blowing agent, 1-5 part;
Coupling agent, 1-10 part;
Lubricant, 1-5 part;
Nanometer SiO
2, 1-10 part;
Described polystyrene PS is a modification PS particle, promptly is coated with film forming polymer substance coating on this PS particle, and described film forming polymer substance is selected base polyurethane prepolymer for use as, acrylic resin performed polymer, a kind of in the vinyl acetate polymer.
2. the preparation method of nanometer PS foam composite material according to claim 1 is characterized in that: also comprise fire retardant in the described raw material, its consumption is 10-15 part.
3. the preparation method of nanometer PS foam composite material according to claim 1 and 2 is characterized in that: also comprise tinting material in the described raw material, its consumption is 1-5 part.
4. the preparation method of nanometer PS foam composite material according to claim 1 is characterized in that: also comprise ultra-violet stabilizer in the described raw material, its consumption is 1-5 part.
5. the preparation method of nanometer PS foam composite material according to claim 1 is characterized in that: described wood fiber powder granularity is 800～300 orders, water content 0.01～1.0%.
6. the preparation method of nanometer PS foam composite material according to claim 1 is characterized in that: described coupling agent is the aluminic acid ester.
7. the preparation method of nanometer PS foam composite material according to claim 1 is characterized in that: described lubricant is a stearic acid.
8. the preparation method of nanometer PS foam composite material according to claim 1 is characterized in that: described whipping agent is the AC whipping agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106125799A CN102108162A (en) | 2010-12-24 | 2010-12-24 | Preparation method of nano PS (polystyrene) foaming composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106125799A CN102108162A (en) | 2010-12-24 | 2010-12-24 | Preparation method of nano PS (polystyrene) foaming composite material |
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| CN102108162A true CN102108162A (en) | 2011-06-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103788521A (en) * | 2014-01-22 | 2014-05-14 | 南通市海鸥救生防护用品有限公司 | Antiflaming and uvioresistant polystyrene foam material and preparation method thereof |
| CN106800714A (en) * | 2016-12-23 | 2017-06-06 | 苏州缔绿电子科技有限公司 | It is a kind of to be added with impact resisting packaging sheet material of quartz sand and preparation method thereof |
-
2010
- 2010-12-24 CN CN2010106125799A patent/CN102108162A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103788521A (en) * | 2014-01-22 | 2014-05-14 | 南通市海鸥救生防护用品有限公司 | Antiflaming and uvioresistant polystyrene foam material and preparation method thereof |
| CN106800714A (en) * | 2016-12-23 | 2017-06-06 | 苏州缔绿电子科技有限公司 | It is a kind of to be added with impact resisting packaging sheet material of quartz sand and preparation method thereof |
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Application publication date: 20110629 |