CN100491465C - Preparation method of ramie stem and plastic composite material - Google Patents
Preparation method of ramie stem and plastic composite material Download PDFInfo
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- CN100491465C CN100491465C CNB2006101228326A CN200610122832A CN100491465C CN 100491465 C CN100491465 C CN 100491465C CN B2006101228326 A CNB2006101228326 A CN B2006101228326A CN 200610122832 A CN200610122832 A CN 200610122832A CN 100491465 C CN100491465 C CN 100491465C
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- 238000012545 processing Methods 0.000 claims description 3
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 2
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- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
This invention provides a preparation of a ramie stipe and plastic composite, including drying after shattering of ramie stipe, drying plastic gum and compatible agent separately, and aspersing couplant on ramie stipe powder. The dose of couplant is about 1-2% of ramie stipe powder. The weight amount is that ramie stipe powder 30-50, plastic gum 50-70, compatible agent 5-10, lubricant 2-4, antioxidant 0.1-0.3, bulking agent 0-10, fire - retardant agent 0-20, then uniformly mixed and extruding the mixture from the forcing machine. This invention solves the problem of the compatibility between herb fiber and plastic, and the surface treatment technology of raw materials.
Description
Technical field
The present invention relates to natural-fiber composite material and wood plastic composite technical field, specifically be meant the preparation method of a kind of ramie stem and plastics composite.
Background technology
Ramie is the distinctive herbaceous plant of China, is called " China's grass " in the world.According to Food and Argriculture OrganizationFAO's statistics, the ramie output of China accounted for more than 98% of world's total amount in recent years.(ramee is the longest in the various bast-fibres to the phloem fiber part that people mainly utilize ramie usually as the first-class fibrous material of textiles, general long 60～200mm, the longest 600mm that reaches), waste of flax and the epidermis part of bright ramie after decorticating then is taken as the castoff burning processing, these wastes account for 2/3 of whole piece ramie, and its main component is Mierocrystalline cellulose and hemicellulose.Burning disposal is contaminate environment not only, and causes the resource significant wastage.In recent years, utilizing ramee to produce matrix material also is partly to be raw material with its phloem fiber.
The wood plastic composite production technology is the new technology of fast development in recent years, its raw material mainly adopts lumber fibre, also adopts the draft fiber, but is confined to straw, bamboo, Chinese silvergrass etc., because China's Forest Resources is limited, there is very big bottleneck in the raw material supply of this technology.Simultaneously, vegetable fibre has very strong polarity, and the consistency between it and plastics is very poor, interface degree of cohering is extremely low, although the modification technology of wood fibre has been obtained very great development, it is different that ramee and wood fibre have again, to the solution of also having no talent of the consistency of ramee and plastics.
Summary of the invention
Purpose of the present invention is exactly in order to solve above-mentioned the deficiencies in the prior art part, and the preparation method of a kind of ramie stem and plastics composite is provided.This method is a raw material with the ramie stalk, has solved the compatibility problem of ramee and plastics, and the matrix material of production can substitute existing wood plastic composite fully.
Purpose of the present invention is achieved through the following technical solutions: the preparation method of described a kind of ramie stem and plastics composite comprises the steps and processing condition:
The first step is dried to water content 0～3% after ramie stem is ground into 20～100 purpose ramie stalk powder; Distinguish dry plastics base material and compatilizer simultaneously;
Second step was sprayed coupling agent to the ramie stalk powder under 100～110 ℃, the consumption of coupling agent is 1～2% of a ramie stalk grain weight amount, makes modification ramie stalk powder;
The 3rd step mixed 30～50 parts of modification ramie stalk powder and 50～70 parts of plastic basis materials, 5～10 parts of compatilizers, 2～4 parts of lubricants, 0.1～0.3 part of antioxidant, 0～10 part of filler, 0～20 part of fire retardant in parts by weight;
The 4th step by extruding in the forcing machine, promptly obtained described ramie stem and plastics composite with the said mixture material.
In order to realize the present invention better, the drying temperature of described ramie stalk powder is 90～105 ℃, and be 18～24 hours time of drying; Described plastic basis material and compatilizer were dried 2～4 hours down at 70～100 ℃ respectively; Described ramie stalk powder sprays coupling agent in kneader, the kneading time is 40～60 minutes; Described ramie stalk powder sprays coupling agent in high-speed mixer, mixing time is 15～20 minutes; Described coupling agent when spraying according to coupling agent: the weight ratio dilution of dehydrated alcohol=1: 2～4; Described coupling agent comprises silane coupling agent KH550, WD20 or titanate coupling agent NDZ-101; Described plastic basis material comprises low density polyethylene, high density polyethylene or polypropylene PP; Described compatilizer comprises maleic anhydride grafted polyethylene, maleic anhydride graft high density polyethylene(HDPE) or maleic anhydride inoculated polypropylene; Described lubricant comprises one or more mixtures in ethylene bis stearic acid amide EBS, polyethylene wax PE wax, stearic acid, the compounded lubricant; Described antioxidant comprises antioxidant 1010 and antioxidant 168; Described filler comprises talcum powder or lime carbonate; Described fire retardant comprises decabromodiphynly oxide and antimonous oxide; By extruding in the parallel dual-screw extruding machine, the screw rod Heating temperature is 120～200 ℃ with described mixture, and screw speed is 40～100rpm.
The present invention compared with prior art has following advantage and beneficial effect:
1, the present invention has solved problems such as the consistency of draft fiber and plastics and raw material process for treating surface well, has realized the comprehensive utilization of ramie raw materials, has solved the handling problem of agricultural wastes, has improved additional value of farm products; Owing to the ramie raw materials wide material sources, cheap simultaneously, thereby the composite product cost of the present invention's preparation is low.
2, the matrix material of the present invention's preparation has the advantage of timber and plastics concurrently and overcomes its shortcoming, not only can make the such outward appearance of natural timber, and light weight, can be anticorrosion, moistureproof, insect protected, fire prevention, the dimensional stability height does not ftracture, warpage not, has good processability, recycling also capable of circulation is the excellent environment-protective material.
3, the matrix material of the present invention's preparation satisfies needs for preparation against war, can be used for production quartermaster equipment exhibition area product, comprises cartridge box, shell case, camping tent support, dividing plate etc.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment one
The first step adopts 300 type moral formula wood powder machines, ramie stem is ground into 20～40 purpose ramie stalk powder after, in 90 ℃ of following warm air drying ramie stalk powder 24 hours, controlling moisture content was in 3%; Dried LDPE and maleic anhydride grafted polyethylene 4 hours down at 70 ℃ respectively simultaneously;
The second step ramie stalk powder sprays silane coupling agent KH550 in kneader, consumption is 1.5% of a ramie stalk grain weight amount, 100 ℃ of temperature, 40 minutes kneading time, make coupling agent can evenly coat the ramie stalk powder, improve itself and plastic basis material consistency (coupling agent when spraying according to coupling agent: the weight ratio dilution of dehydrated alcohol=1: 3), make modification ramie stalk powder;
The 3rd step mixed 30 parts of modification ramie stalk powder and 70 parts of LDPE, 5 parts of maleic anhydride grafted polyethylenes, 1 part of stearic acid, 2 parts of PE waxes, 0.1 part of antioxidant 1010,0.05 part of antioxidant 168 in parts by weight;
The 4th step, by extruding in the parallel dual-screw extruding machine, the screw rod Heating temperature was 120～150 ℃ with the said mixture material, and screw speed is 60～100rpm, promptly obtains described ramie stem and plastics composite.This matrix material can directly prepare finished section bar or sheet material, also can prepare finished product by granulation, secondary extrusion moulding.
The composite material test mechanical property of present embodiment preparation is as follows: tensile strength 11.81MPa, tensile modulus 464.8MPa, flexural strength 16.2Mpa, modulus in flexure 698.9Mpa, socle girder notched Izod impact strength 6.37KJ/m
2, elongation at break 10.17%.
Embodiment two
After the first step was ground into 20～40 purpose ramie stalk powder with ramie stem, in 95 ℃ of following warm air drying ramie stalk powder 22 hours, controlling moisture content was in 3%; Dried LDPE and maleic anhydride grafted polyethylene 3 hours down at 80 ℃ respectively simultaneously;
The second step ramie stalk powder sprays titanate coupling agent NDZ-101 in kneader, consumption is 1.5% of a ramie stalk grain weight amount, 105 ℃ of temperature, 50 minutes kneading time (coupling agent when spraying according to coupling agent: the weight ratio dilution of dehydrated alcohol=1: 3), make modification ramie stalk powder;
The 3rd step mixed 30 parts of modification ramie stalk powder and 70 parts of LDPE, 5 parts of maleic anhydride grafted polyethylenes, 1 part of stearic acid, 2 parts of PE waxes, 0.1 part of antioxidant 1010,0.05 part of antioxidant 168 in parts by weight;
The 4th step, by extruding in the parallel dual-screw extruding machine, the screw rod Heating temperature was 120～150 ℃ with the said mixture material, and screw speed is 60～100rpm, promptly obtains described ramie stem and plastics composite.
The composite material test mechanical property of present embodiment preparation is as follows: tensile strength 11.27MPa, tensile modulus 484.8MPa, flexural strength 17.1Mpa, modulus in flexure 758.2Mpa, socle girder notched Izod impact strength 6.09KJ/m
2, elongation at break 8.08%.
Embodiment three
After the first step was ground into 40～60 purpose ramie stalk powder with ramie stem, in 100 ℃ of following warm air drying ramie stalk powder 20 hours, controlling moisture content was in 3%; Simultaneously respectively at 90 ℃ of following 3 hours oven dry HDPE and maleic anhydride graft high density polyethylene(HDPE);
The second step ramie stalk powder sprays silane coupling agent KH550 in kneader, consumption is 1.5% of a ramie stalk grain weight amount, 110 ℃ of temperature, 60 minutes kneading time (coupling agent when spraying according to coupling agent: the weight ratio dilution of dehydrated alcohol=1: 3), make modification ramie stalk powder;
The 3rd step mixed 40 parts of modification ramie stalk powder and 60 parts of HDPE, 5 parts of maleic anhydride graft high density polyethylene(HDPE)s, 1 part of stearic acid, 2 parts of EBS, 0.1 part of antioxidant 1010,0.05 part of antioxidant 168 in parts by weight;
The 4th step, by extruding in the parallel dual-screw extruding machine, the screw rod Heating temperature was 160～185 ℃ with the said mixture material, and screw speed is 60～100rpm, promptly obtains described ramie stem and plastics composite.
The composite material test mechanical property of present embodiment preparation is as follows: tensile strength 31.23MPa, tensile modulus 1572.7MPa, flexural strength 44.3Mpa, modulus in flexure 2747.3Mpa, socle girder notched Izod impact strength 4.36KJ/m
2, elongation at break 6.77%.
Embodiment four
After the first step was ground into 20～40 purpose ramie stalk powder with ramie stem, in 105 ℃ of following warm air drying ramie stalk powder 18 hours, controlling moisture content was in 3%; Simultaneously respectively at 100 ℃ of following 2 hours oven dry HDPE and maleic anhydride grafted polyethylene;
The second step ramie stalk powder sprays silane coupling agent KH550 in kneader, consumption is 1.5% of a ramie stalk grain weight amount, 110 ℃ of temperature, 40 minutes kneading time (coupling agent when spraying according to coupling agent: the weight ratio dilution of dehydrated alcohol=1: 3), make modification ramie stalk powder;
The 3rd step mixed 30 parts of modification ramie stalk powder and 70 parts of HDPE, 8 parts of maleic anhydride grafted polyethylenes, 1 part of stearic acid, 3 parts of PE waxes, 0.1 part of antioxidant 1010,168,6 parts of talcum powder of 0.05 part of antioxidant in parts by weight;
The 4th step, by extruding in the parallel dual-screw extruding machine, the screw rod Heating temperature was 160～185 ℃ with the said mixture material, and screw speed is 60～100rpm, promptly obtains described ramie stem and plastics composite.
The composite material test mechanical property of present embodiment preparation is as follows: tensile strength 29.14MPa, tensile modulus 1460.3MPa, flexural strength 38.89Mpa, modulus in flexure 2362Mpa, socle girder notched Izod impact strength 3.69KJ/m
2, elongation at break 8.45%.
Embodiment five
After the first step was ground into 20～40 purpose ramie stalk powder with ramie stem, in 105 ℃ of following warm air drying ramie stalk powder 18 hours, controlling moisture content was in 3%; Simultaneously respectively at 100 ℃ of following 2 hours oven dry HDPE and maleic anhydride graft high density polyethylene(HDPE);
The second step ramie stalk powder sprays silane coupling agent KH550 in kneader, consumption is 1.5% of a ramie stalk grain weight amount, 110 ℃ of temperature, 40 minutes kneading time (coupling agent when spraying according to coupling agent: the weight ratio dilution of dehydrated alcohol=1: 3), make modification ramie stalk powder;
The 3rd step mixed 50 parts of modification ramie stalk powder and 50 parts of HDPE, 8 parts of maleic anhydride graft high density polyethylene(HDPE)s, 2 parts of compounded lubricant TPW104 (production of U.S. Struktol company), 0.1 part of antioxidant 1010,168,6 parts of talcum powder of 0.05 part of antioxidant, 13 parts of decabromodiphynly oxides, 4 parts of antimonous oxides in parts by weight;
The 4th step, by extruding in the parallel dual-screw extruding machine, the screw rod Heating temperature was 160～185 ℃ with the said mixture material, and screw speed is 60～100rpm, promptly obtains described ramie stem and plastics composite.
The matrix material of present embodiment preparation can be used for preparation and have flame retardant resistance PE plastic-wood material.
Embodiment six
After the first step was ground into 60～80 purpose ramie stalk powder with ramie stem, in 105 ℃ of following warm air drying ramie stalk powder 18 hours, controlling moisture content was in 3%; Simultaneously respectively at 100 ℃ of following 2 hours oven dry HDPE and maleic anhydride graft high density polyethylene(HDPE);
The second step ramie stalk powder sprays silane coupling agent WD20 in high-speed mixer, consumption is 1% of a ramie stalk grain weight amount, 110 ℃ of temperature, mixing time 15 minutes (coupling agent when spraying according to coupling agent: the weight ratio dilution of dehydrated alcohol=1: 2), make modification ramie stalk powder;
The 3rd step mixed 50 parts of modification ramie stalk powder and 50 parts of HDPE, 10 parts of maleic anhydride graft high density polyethylene(HDPE)s, 2 parts of EBS, 0.07 part of antioxidant 1010,168,3 parts of lime carbonate of 0.03 part of antioxidant, 5 parts of decabromodiphynly oxides, 3 parts of antimonous oxides in parts by weight;
The 4th step, by extruding in the parallel dual-screw extruding machine, the screw rod Heating temperature was 160～185 ℃ with the said mixture material, and screw speed is 60～100rpm, promptly obtains described ramie stem and plastics composite.
Embodiment seven
After the first step was ground into 80～100 purpose ramie stalk powder with ramie stem, in 105 ℃ of following warm air drying ramie stalk powder 18 hours, controlling moisture content was in 3%; Simultaneously respectively at 100 ℃ of following 2 hours oven dry PP and maleic anhydride inoculated polypropylene;
The second step ramie stalk powder sprays silane coupling agent WD20 in high-speed mixer, consumption is 2% of a ramie stalk grain weight amount, 110 ℃ of temperature, mixing time 20 minutes (coupling agent when spraying according to coupling agent: the weight ratio dilution of dehydrated alcohol=1: 4), make modification ramie stalk powder;
The 3rd step mixed 50 parts of modification ramie stalk powder and 50 parts of PP, 8 parts of maleic anhydride inoculated polypropylenes, 2 parts of compounded lubricant TPW104,0.2 part of antioxidant 1010,168,10 parts of lime carbonate of 0.1 part of antioxidant, 13 parts of decabromodiphynly oxides, 7 parts of antimonous oxides in parts by weight;
The 4th step, by extruding in the parallel dual-screw extruding machine, the screw rod Heating temperature was 180～200 ℃ with the said mixture material, and screw speed is 40～60rpm, promptly obtains described ramie stem and plastics composite.
As mentioned above, can realize the present invention preferably.
Claims (10)
1, the preparation method of a kind of ramie stem and plastics composite is characterized in that, comprises the steps and processing condition:
The first step is dried to water content 0～3% after ramie stem is ground into 20～100 purpose ramie stalk powder; Distinguish dry plastics base material and compatilizer simultaneously;
Second step was sprayed coupling agent to the ramie stalk powder under 100～110 ℃, the consumption of coupling agent is 1～2% of a ramie stalk grain weight amount, makes modification ramie stalk powder;
The 3rd step mixed 30～50 parts of modification ramie stalk powder and 50～70 parts of plastic basis materials, 5～10 parts of compatilizers, 2～4 parts of lubricants, 0.1～0.3 part of antioxidant, 0～10 part of filler, 0～20 part of fire retardant in parts by weight;
The 4th step by extruding in the forcing machine, promptly obtained described ramie stem and plastics composite with the said mixture material;
Described plastic basis material is meant LDPE, HDPE or PP; Described compatilizer is meant maleic anhydride grafted polyethylene or maleic anhydride inoculated polypropylene.
2, the preparation method of a kind of ramie stem according to claim 1 and plastics composite is characterized in that, described compatilizer is meant the maleic anhydride graft high density polyethylene(HDPE).
3, the preparation method of a kind of ramie stem according to claim 1 and plastics composite is characterized in that, the drying temperature of described ramie stalk powder is 90～105 ℃, and be 18～24 hours time of drying; Described plastic basis material and compatilizer were dried 2～4 hours down at 70～100 ℃ respectively.
4, the preparation method of a kind of ramie stem according to claim 1 and plastics composite is characterized in that, described ramie stalk powder sprays coupling agent in kneader, and the kneading time is 40～60 minutes; Described ramie stalk powder sprays coupling agent in high-speed mixer, mixing time is 15～20 minutes.
5, according to the preparation method of claim 1 or 4 described a kind of ramie stems and plastics composite, it is characterized in that, described coupling agent when spraying according to coupling agent: the weight ratio dilution of dehydrated alcohol=1: 2～4; Described coupling agent is meant silane coupling agent KH550, WD20 or titanate coupling agent NDZ-101.
6, the preparation method of a kind of ramie stem according to claim 1 and plastics composite is characterized in that, described lubricant is meant one or more mixtures in EBS, PE wax, stearic acid, the compounded lubricant.
7, the preparation method of a kind of ramie stem according to claim 1 and plastics composite is characterized in that, described antioxidant is meant antioxidant 1010 and antioxidant 168.
8, the preparation method of a kind of ramie stem according to claim 1 and plastics composite is characterized in that, described filler is meant talcum powder or lime carbonate.
9, the preparation method of a kind of ramie stem according to claim 1 and plastics composite is characterized in that, described fire retardant is meant decabromodiphynly oxide and antimonous oxide.
10, the preparation method of a kind of ramie stem according to claim 1 and plastics composite is characterized in that, by extruding in the parallel dual-screw extruding machine, the screw rod Heating temperature is 120～200 ℃ with described mixture, and screw speed is 40～100rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101228326A CN100491465C (en) | 2006-10-19 | 2006-10-19 | Preparation method of ramie stem and plastic composite material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101228326A CN100491465C (en) | 2006-10-19 | 2006-10-19 | Preparation method of ramie stem and plastic composite material |
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| Publication Number | Publication Date |
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| CN1948388A CN1948388A (en) | 2007-04-18 |
| CN100491465C true CN100491465C (en) | 2009-05-27 |
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| CNB2006101228326A Expired - Fee Related CN100491465C (en) | 2006-10-19 | 2006-10-19 | Preparation method of ramie stem and plastic composite material |
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| CN (1) | CN100491465C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081934B (en) * | 2007-07-10 | 2011-06-08 | 广州华工百川科技股份有限公司 | Preparation method of anesthesia stem and plastic composite material |
| CN102191695B (en) * | 2011-03-09 | 2013-07-31 | 昆山博富新材料科技股份有限公司 | Dyeing bastose and modified polypropylene particle prepared from same |
| CN103102586A (en) * | 2011-11-15 | 2013-05-15 | 上海杰事杰新材料(集团)股份有限公司 | Fibrilia/polypropylene wear-resistant wood-plastic composite material and preparation method thereof |
| CN103709508B (en) * | 2013-12-15 | 2016-11-23 | 上海悦萌环保科技有限公司 | Rat-and-ant proof PP/HDPE environmentally-friendly plastic |
| CN104497607B (en) * | 2014-12-11 | 2016-09-07 | 清远市普塞呋磷化学有限公司 | A kind of halogen-free flame-retardant wood-plastic composite material and preparation method thereof |
| CN106118106A (en) * | 2016-07-07 | 2016-11-16 | 安徽国风木塑科技有限公司 | A kind of wear-resisting type Wheat straw fiber wood plastic composite and preparation method thereof |
| CN109575552A (en) * | 2017-09-29 | 2019-04-05 | 中国石油化工股份有限公司 | Functional flame-retardant high-molecular composition and its preparation method and application |
| CN108972824A (en) * | 2018-08-23 | 2018-12-11 | 安徽美林凯迪木业有限公司 | A kind of high-strength environmentally friendly door |
| CN111454582A (en) * | 2019-01-20 | 2020-07-28 | 王忠良 | Lacquer tree powder polyolefin composite board and preparation method thereof |
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2006
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