CN1039208A - Natural fibre products and manufacture method thereof - Google Patents
Natural fibre products and manufacture method thereof Download PDFInfo
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- CN1039208A CN1039208A CN 89104664 CN89104664A CN1039208A CN 1039208 A CN1039208 A CN 1039208A CN 89104664 CN89104664 CN 89104664 CN 89104664 A CN89104664 A CN 89104664A CN 1039208 A CN1039208 A CN 1039208A
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Abstract
A kind of natural fibre products and manufacture method thereof, it belongs to the field of containing the article of natural fiber and organic bond with dry method manufacturing.The present invention with granular wood chip or dogstail or beans stalk, shell or hemp stalk or bamboo stalk, leaf or reed stalk or cotton stalk or sorghum stalk or rattan or peanut shell or animal skins or leather or hair or feather or bone etc. mix with thermoplastic resin the back in mould through heating pressurization and making.The alternative timber of its goods, plastics and be widely used for fields such as construction and decoration, household furniture, electric equipment, package packing supplies.
Description
The present invention is a kind of natural fibre products and manufacture method thereof, and it belongs to the field of containing the article of natural fiber and organic bond with dry method manufacturing, and it comprises proportion of raw materials, pulverizing, stirring, dress mould, the technical process of heating, pressurizeing.
A kind of artificial wooden products made from sunflower straw and a kind of method with producing corn-stalk plate are disclosed respectively in CN-87101538A and CN-87103594A.Their purpose is the substitute that obtains timber by this kind goods or manufacture method.Its formation be the sunflower stalk that will pulverize or maize straw with Lauxite as adhesive stir the back in mould through the pressurization formation goods of heating.Weak point is to need carrying out the drying processing as the sunflower stalk of primary raw material or maize straw before it is pulverized preceding or stirs with adhesive or after making finished product, and primary raw material produced the influence in season again, even also need bigger place to deposit after the concentric acquisition; Vast territory and abundant resources in China, and two kinds of primary raw materials of said products do not have plantation in some areas of China yet, but other natural plants grow prolifically; Simultaneously, employed adhesive is also more single, also must pressurize after the pressure of pressurization reaches in the manufacture process, and this makes that all production cost is difficult to reduce.In addition, no matter be artificial wooden products made from sunflower straw or maize straw artificial board, their physical property all can only depend on used primary raw material, also is the performance of sunflower stalk or maize straw.
The objective of the invention is to avoid above-mentioned weak point of the prior art and a kind of primary raw material and adhesive wide material sources are provided, quality no requirement (NR), physical properties of articles to raw material are much better than used primary raw material performance, natural fibre products that production technology is simple, cost is low and manufacture method thereof.
Purpose of the present invention can reach by following measure: will be ground into granular natural fiber and thermoplastic resin 75～85: 15～25 mixing mutually by weight percentage, the purpose of pulverizing is to be beneficial to mutual bonding in order to increase the contact-making surface between natural fiber and the thermoplastic resin; After the stirring mixture is loaded in the container, heats, pressurization 30～50kg/cm to 170～280 ℃
2So that the volatilization of the low temperature in natural fiber composition at high temperature vapors away, and the space that stays is permeated into by thermoplastic resin and is replaced, simultaneously thermoplastic resin also with natural fiber in resin composition generation chemical reaction and natural fiber and thermoplastic resin bonded together tightly make its moulding; After the product cooling to be formed it is ground into 80～500 purpose graininess once more,,, puts into mould and repeat the technical process of the above-mentioned pressurization of heating and make finished product through stirring once more with the contact-making surface of further increase natural fiber and thermoplastic resin.
Purpose of the present invention can also reach by following measure: natural fiber can be selected string or animal origin for use, and string can be wood chip or dogstail (paddy and wheat bar) or beans bar, shell or waste of flax or bamboo bar, leaf or reed rod or cotton bar or kaoliang stalk or rattan or peanut shell etc.; Animal origin can be animal skins or leather or hair or feather or bone etc.The water content size of above natural fiber, whether go mouldy, ferment or slight coking etc. does not influence as raw material and uses,, can be pulverized and get final product as long as do not have carbonization.Thermoplastic resin can be selected polystyrene or polyethylene or polyvinyl chloride or polypropylene or polyformaldehyde or nylon or polyimides or polymethyl methacrylate or ABS plastic or AS plastics for use, and all goods of doing by thermoplastic resin with old or discarded after all recyclablely use as adhesive.In order to make natural fibre products that higher intensity or hardness be arranged, can in goods, add chemical fibre or glass fibre or glass dust or wire.Also can in goods, add corresponding dyestuff according to required color.The temperature of heating to the mixture of natural fiber and thermoplastic resin should be less than the coking temperature of selected natural fiber, and also less than the cracking temperature of used thermoplastic resin.Warm-up time is to get final product when making the temperature of the mixture in container or the mould reach the melt temperature of used thermoplastic resin equably.If the pressure of pressurization is less than 30kg/cm
2, physical properties of articles has downward trend faster, if greater than 50kg/cm
2Though then physical properties of articles increases to some extent, will increase the investment of equipment.The time of pressurization is for till when the setting temperature that begins to be lower than to temperature of articles used thermoplastic resin to goods pressurizations is following.If mould is carried out polishing, then can obtain the very smooth good goods in surface.
The present invention has following advantage compared to existing technology:
1, goods are tested through Anhui Building Material Science and Technic Inst., and the result is as follows: proportion is 1.17g/cm
3, bending resistance is 516kgf/cm
2, resistance to compression is 1028kgf/cm
2, tension is 247kgf/cm
2, percentage elongation is 0.02%, and Brinell hardness is 8.9～11.3, and shock resistance is 11.2kgcm/cm
2, freeze proof 15 circulations when being-20 ℃～15 ℃, test specimen do not have peeling, comes off, no loose.Above technical indicator is approaching respectively, met or exceeded the comprehensive technical performance index of architectural engineering thermoplastic commonly used.Thereby make natural fibre products not only can substitute timber, and can substitute some plastics and be widely used for fields such as construction and decoration, daily furniture, electric equipment; And the cost of natural fibre products is only suitable with the timber-work of making same product, and far below the plastic products of making same product.Simultaneously, the smooth surface of goods, elegant in appearance, and can be as required or people's hobby make the goods of shades of colour or pattern, and need not paint.
2, raw material sources are extensive and cheap, and can recycle, turn waste into wealth.
3, the technological process of production is simple and easy to grasp, and equipment is not had specific (special) requirements, and environmentally safe is suitable for suitability for industrialized production.
The present invention will be described in further detail in conjunction with the embodiments.
Embodiment 1
Wood chip with 85% with mix thoroughly after 15% polyethylene mixes, in the container of packing into, pressurization 30kg/cm when heating to 260 ℃
2, this moment can air-cooled or water-cooled, can remove pressure when temperature is lower than poly freezing point when following; The moulding product are crushed to 80 orders, be loaded on after stirring repeat in the mould above-mentioned heat the pressurization technical process and make goods.
Embodiment 2
Granular bone with 75% with mix in the container of packing into pressurization 50kg/cm when heating after 25% polypropylene mixes thoroughly to 170 ℃
2, water-sprinkling is cooled to polyacrylic freezing point and removes pressure when following; Again the moulding product are crushed to 160 orders, are loaded in the mould after stirring, repeat above-mentioned heat the pressurization technical process and make goods.
Embodiment 3
Pressurization 40kg/cm when heating to 185 ℃ in the container packs into behind granular beans bar with 75%, shell and 15% polystyrene, 10% the chemical fibre short flannel mixing
2, after the water-sprinkling cooling moulding product are crushed to 200 orders, be loaded on after mixing thoroughly and repeat again in the mould above-mentionedly to heat the technical process of pressurizeing and make goods.
Claims (10)
1, a kind of natural fibre products, feature of the present invention are to be major ingredient with 80～500 purpose natural fibers, are adhesive with the thermoplastic resin, are pressed in the goods that form in the mould through heating.
2, goods according to claim 1 is characterized in that natural fiber is string or animal origin.
3, goods according to claim 1 and 2 is characterized in that string is wood chip or dogstail or beans bar, shell or waste of flax or bamboo bar, leaf or reed rod or cotton bar or kaoliang stalk or rattan or peanut shell.
4, goods according to claim 1 and 2 is characterized in that animal origin is animal skins or leather or hair or feather or bone.
5, goods according to claim 1 is characterized in that thermoplastic resin is polystyrene or polyethylene or polyvinyl chloride or polypropylene or polyformaldehyde or nylon or polyimides or polymethyl methacrylate or ABS plastic or AS plastics.
6, goods according to claim 1 is characterized in that goods contain chemical fibre or glass fibre or glass dust or wire.
7, a kind of manufacture method of natural fibre products, feature of the present invention is:
The percentage by weight of a, natural fiber and thermoplastic resin is 75～85: 15～25,
B, be loaded in the container after the natural fiber pulverized and the thermoplastic resin stirring, at 170～280 ℃ of temperature, pressure 30～50kg/cm
2The time moulding,
C, the moulding product are ground into the technical process that in mould, repeats the above-mentioned pressurization of heating after 80～500 purpose graininess.
8, method according to claim 7, the temperature that it is characterized in that heating be less than the coking temperature of natural fiber, and less than the cracking temperature of used thermoplastic resin.
9,, it is characterized in that be to end when following from begin to be lower than the setting temperature of selected thermoplastic resin to temperature of articles to goods pressurizations pressing time according to claim 7 or 8 described methods.
10,, it is characterized in that in goods, to add chemical fibre or glass fibre or glass dust or wire according to claim 7,8 or 9 described methods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89104664 CN1013175B (en) | 1989-07-07 | 1989-07-07 | Process for manufacturing natural fibre products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89104664 CN1013175B (en) | 1989-07-07 | 1989-07-07 | Process for manufacturing natural fibre products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1039208A true CN1039208A (en) | 1990-01-31 |
| CN1013175B CN1013175B (en) | 1991-07-17 |
Family
ID=4855642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89104664 Expired CN1013175B (en) | 1989-07-07 | 1989-07-07 | Process for manufacturing natural fibre products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1013175B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999050151A1 (en) * | 1998-03-27 | 1999-10-07 | Jianguo Jiang | Dinner ware or packaging elements for foodstuff and articles made from plant fiber as well as a method for making them |
| CN1091578C (en) * | 1999-11-05 | 2002-10-02 | 洛阳百合轻工业有限公司 | Improved fresh keeping method during Mongolian oak leaf processing course |
| CN1328131C (en) * | 2001-12-25 | 2007-07-25 | 东洋化学产业株式会社 | Bottom plate material for container |
| CN102516754A (en) * | 2011-11-23 | 2012-06-27 | 安徽宜万丰电器有限公司 | Connector and manufacturing method thereof |
| CN102554977A (en) * | 2010-12-27 | 2012-07-11 | 周凤东 | Compound veneer |
-
1989
- 1989-07-07 CN CN 89104664 patent/CN1013175B/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999050151A1 (en) * | 1998-03-27 | 1999-10-07 | Jianguo Jiang | Dinner ware or packaging elements for foodstuff and articles made from plant fiber as well as a method for making them |
| CN1091578C (en) * | 1999-11-05 | 2002-10-02 | 洛阳百合轻工业有限公司 | Improved fresh keeping method during Mongolian oak leaf processing course |
| CN1328131C (en) * | 2001-12-25 | 2007-07-25 | 东洋化学产业株式会社 | Bottom plate material for container |
| CN102554977A (en) * | 2010-12-27 | 2012-07-11 | 周凤东 | Compound veneer |
| CN102516754A (en) * | 2011-11-23 | 2012-06-27 | 安徽宜万丰电器有限公司 | Connector and manufacturing method thereof |
| CN102516754B (en) * | 2011-11-23 | 2013-06-26 | 安徽宜万丰电器有限公司 | Connector and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1013175B (en) | 1991-07-17 |
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