CN105061899A - Method for preparing LFT-D (long fiber reinforced thermoplastic in direct processing) dung leakage plate from PP (polypropylene) raw material - Google Patents
Method for preparing LFT-D (long fiber reinforced thermoplastic in direct processing) dung leakage plate from PP (polypropylene) raw material Download PDFInfo
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- CN105061899A CN105061899A CN201510611291.2A CN201510611291A CN105061899A CN 105061899 A CN105061899 A CN 105061899A CN 201510611291 A CN201510611291 A CN 201510611291A CN 105061899 A CN105061899 A CN 105061899A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
- C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
- C08K5/1535—Five-membered rings
- C08K5/1539—Cyclic anhydrides
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reinforced Plastic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a method for preparing an LFT-D (long fiber reinforced thermoplastic in direct processing) dung leakage plate from a PP (polypropylene) raw material. On the basis of the original manufacturing technique of the LFT-D dung leakage plate, temperature control, material improvement and special technique/formula combination are performed. The method comprises the following steps: proportionally adding the modified PP plastic into Y2600 raw material particles, stirring and melting in a double-screw mode, and adding glass fibers to prepare the product. The Y2600 raw material has poor weather resistance and harsh environment resistance, but the added modified plastic can greatly enhance the toughness, weather resistance, aging resistance and the like, thereby overcoming the insufficient strength and prolonging the aging time; and thus, every processed product can satisfy the related inspection standard for dung leakage plates through testing on various mechanical properties, thereby enhancing the toughness of the LFT-D dung leakage plate, prolonging the service life, implementing cyclic utilization and having important green and environment-friendly meanings.
Description
Technical field
The invention belongs to animal raising technology field, be specifically related to a kind of leakage dropping-board for livestock stable breeding, especially special material and special production technique and formula, the method for the leakage dropping-board that can produce.
Background technology
The livestocks such as current pig, sheep, ox, chicken and poultry generally adopt stable breeding, wherein leak the important device that dropping-board is colony house, can ensure that the ight soil of poultry and urine can flow in dropping pit on the one hand, reduce labor cleaning's cost, keep the impact on poultry growth.
LFT-D (long fiber reinforced thermoplastic composites) compares with common fiber-reinforced thermoplastic, under normal circumstances, staple length in general fibre enhancing thermoplastic material is for being less than 1 millimeter, and in LFT-D, the length of fiber is generally at 5 ~ 20 millimeters.LFT-D is density low (1.1 ~ 1.4g/cm3) not only, and there is good mechanical property, its tensile strength, Young's modulus, impelling strength, thermotolerance and creep resistance are all obviously better than the thermoplastics of short fiber reinforced, are widely used in Lou dropping-board preparation.LFT-D adopts online die press technology for forming technology, and blapharoplast and additive are transported in the combination of gravimetric analysis feeder unit, and this unit guarantees the mixing of appropriateness according to the mechanical property requirements of processing component.Compound after melting directly enters the opening part of twin screw compounding forcing machine by a die head, adds macrofiber glass roving here, and the block molding raw material after compounding is transported in compression molding device, produces Lou dropping-board product.
Current employing matrix resin mainly comprises the resin such as the primary material of PP, PE, PA, PBT.If but these primary material are directly added, the leakage dropping-board product ubiquity life-span of preparing not, the easy problem such as aging, have influence on promoting the use of of product.
Summary of the invention
Technical problem to be solved by this invention is, there is provided a kind of and prepared by the method that LFT-D leaks dropping-board to the primary material modification of PP, the method carries out modify and graft to the primary material of original petrochemical complex PP, add unmodified raw material on this basis, the leakage dropping-board produced substantially increases the intensity that LFT-D leaks dropping-board, improves the aging time limit of product and the life cycle of product.
Technical scheme of the present invention is as follows:
Utilize the primary material of PP to prepare a method for LFT-D leakage dropping-board, comprise the following steps:
[1] primary for PP material is added melt pelletization after material modified modify and graft, become modified plastic particles;
[2] by modified plastic particles in step [1] and the primary material of PP that newly increases in proportion injection heating whipping appts, its uniform melt is made;
[3] in heating and stirring device, add glass fibre, carry out Homogeneous phase mixing heating once again with the output object of step [2];
[4] the hot stock of step [3] is extruded into Lou in dropping-board mould, produces Lou dropping-board product;
Material modifiedly in described step [1] comprise compatilizer, antiaging agent and grafting agent, wherein the ratio of weight and number of the primary material of PP, compatilizer, antiaging agent and grafting agent is 100:1-2:0.5-1:1-1.5, and modified fusion temperature is between 190 DEG C ~ 240 DEG C;
The ratio (weight) of modified plastic particles, the primary material of PP and glass fibre in described step [2] and step [3] is: 1:4-5:0.8-1.
The primary material of the above-mentioned PP of utilization is prepared LFT-D and is leaked in the method for dropping-board, and the primary material of PP in step [1] is petrochemical materials Y2600pp.
The primary material of the above-mentioned PP of utilization is prepared LFT-D and is leaked in the method for dropping-board, and compatilizer is CMG9801 type, and antiaging agent is 1010 types, and grafting agent is maleic anhydride MAH.
The above-mentioned primary material of petrochemical complex PP that utilizes is prepared in the method for LFT-D leakage dropping-board, and the heating and stirring device in step [2] is double-screw plastic extrusion machine.
The primary material of the above-mentioned PP of utilization is prepared LFT-D and is leaked in the method for dropping-board, and the primary material of petrochemical complex PP and modified plastic particles are infused in the single order screw rod import of double-screw plastic extrusion machine.
The primary material of the above-mentioned PP of utilization is prepared LFT-D and is leaked in the method for dropping-board, and glass fibre is added on the second order screw rod import of double-screw plastic extrusion machine.
The Advantageous Effects that the present invention has is as follows:
One, the present invention adopts material based on the primary material of Y2600PP, adds a certain proportion of anti-aging, compatilizer and grafting agent and controls melting by certain temperature and stir grafting granulation, become new modified plastics.Modified Y2600PP plastics are proportionally added in the former raw meal particulate of Y2600 and stir melting by twin screw, and add glass fibre and make product.Due to Y2600 primary material weathering resistance and anti-adverse environment slightly poor, but greatly can to increase toughness, weathering resistance and anti-aging etc. after modified plastics owing to adding, therefore its undercapacity, prolongation digestion time can be made up, make the every Mechanics Performance Testing of every part goods processed can reach the related check standard of leaking dropping-board, the toughness achieving LFT-D leakage dropping-board improves, increases work-ing life.
Two, modify and graft of the present invention mainly with the addition of compatilizer, antiaging agent and grafting agent.The object of compatilizer promotes intermolecular linkage force, impels inconsistent two kinds of polymer scales to be combined in one, and then obtain the auxiliary agent of stable blend.The phenomenon of ageing of plastics deliquescing is exactly molecular breakdown, and that plastics become is harder or become fragile, exactly because intramolecule combines again.Ageing-resistant effect is exactly constantly absorb these living radicals, makes them cannot aged plastics goods.And the effect of grafting agent is exactly be added on grafting in the primary material of nonpolar PP, after making grafting, material has had polarity just can combine with the glass fibre filling of polarity, is become the combination of molecular linkage, composite materials property is improved greatly by intermolecular combination.
Three, the present invention only carries out modification to the primary material of a small amount of Y2600PP, and is mixed with Lou dropping-board product with unmodified primary material, under the condition meeting intensity and work-ing life, has saved material modified and modification cost.
Accompanying drawing explanation
Fig. 1 is the structural representation that LFT-D of the present invention leaks dropping-board.
Embodiment
Fig. 1 is that converted products LFT-D of the present invention leaks dropping-board, is included in some leakage excrement holes that product is arranged.Conventional fabrication processes adopts online die press technology for forming technology, and blapharoplast is transported in the combination of gravimetric analysis feeder unit, and this unit guarantees the mixing of appropriateness according to the mechanical property requirements of processing component.Compound after melting directly enters the opening part of twin screw compounding forcing machine by a die head, adds macrofiber glass roving here, and the block molding raw material after compounding is transported in compression molding device, produces Lou dropping-board product.Current employing matrix resin mainly comprises the resins such as PP, PA, PBT.
The standard scale that usual one piece of LFT-D leaks dropping-board is (length, width and height 1500mm × 600mm × 35mm), and weight is 7.7kg, owing to needing splicing in the application, and needs the weight of bearing livestock, therefore there are certain requirements the intensity of leaking dropping-board.The intensity index that existing LFT-D leaks dropping-board mainly comprises: tensile strength, shock strength, elongation at break and strutbeam unnotched impact strength, detects according to corresponding national standard.
Due to the weathering resistance of Y2600 raw material PP and anti-adverse environment slightly poor, the present invention has carried out modify and graft to raw material, and is mixed into the unmodified primary material of part and refuse material, achieves the preparation of Lou dropping-board product, ensure that intensity index, and extend the work-ing life of product.Wherein modify and graft mainly with the addition of compatilizer, antiaging agent and grafting agent.The object of compatilizer promotes intermolecular linkage force, impels inconsistent two kinds of polymer scales to be combined in one, and then obtain the auxiliary agent of stable blend.The phenomenon of ageing of plastics deliquescing is exactly molecular breakdown, and that plastics become is harder or become fragile, exactly because intramolecule combines again.Ageing-resistant effect is exactly constantly absorb these living radicals, makes them cannot aged plastics goods.And the effect of grafting agent maleic anhydride (MAH) is exactly be added on grafting in the primary material of nonpolar PP, after making grafting, material has had polarity just can combine with the glass fibre filling of polarity, become the combination of molecular linkage by intermolecular combination, composite materials property is improved greatly.
Be wherein Y2600PP for the primary material of petrochemical complex PP, compatilizer is CMG9801 type, antiaging agent is 1010 types, grafting agent is maleic anhydride MAH, adding proportion is the primary material of every 100kgPP, the CMG9801 type compatilizer of 1-2kg, the 1010 type antiaging agents of 0.5-1kg, the maleic anhydride MAH grafting agent of 1-1.5kg, modified fusion temperature is between 190 DEG C ~ 240 DEG C.Concrete implementation step is as follows:
[1] primary for petrochemical complex PP material Y2600PP is added melt pelletization after material modified modify and graft, become modified plastic particles; Material modified is compatilizer, antiaging agent, acid anhydride-grafted dose of horse Lip river, stirs fusing inorganic polymer grafting is connected together granulation by singe screw
[2] by primary for petrochemical complex PP material, aforesaid modified plastic particles proportionally injection heating whipping appts double-screw plastic extrusion machine, and better material is put into inside storage hopper by delivery system, this granular size can ensure fully to melt in double-screw plastic extrusion machine, is combined with each other better.
[3] add glass fibre at heating and stirring device second order screw rod interface, then carry out heated and stirred, stock is better combined and gains in strength and toughness, surface is more smooth.
[4] the hot stock of step [3] is extruded into Lou in dropping-board mould, produces Lou dropping-board product.
Wherein modified plastic particles, the primary material of PP are as follows with the weight ratio of glass fibre: corresponding every 1 part of modified plastic particles, the primary material of 4-5 part PP, 0.8-1 part glass fibre.
Below in conjunction with specific embodiment, this patent is further elaborated.
Embodiment one: primary material not modification is implemented
The part by weight of the primary material of Y2600PP and glass fibre is 6:1, prepare and be of a size of 1500mm × 600mm × 35mm, LFT-D that weight is 7.85kg specification leaks dropping-board, design service life 8 ~ 10 carries out intensity detection according to corresponding national standard, in experiment, pressure is 1300T, dwell time is tens of second, and the index of acquisition is tensile strength is 53.5Mpa, and shock strength is 21.3Mpa, elongation at break is 3.1%, and strutbeam unnotched impact strength is 40.4kJ/m
2.It is that after 4 ~ 6 years, degree of aging is accelerated that work-ing life is at normal temperatures tested in laboratory, and can not reach original design work-ing life.
Embodiment two: primary material modification is implemented
The ratio of weight and number of the primary material of Y2600PP, CMG9801 type compatilizer, 1010 type antiaging agents and maleic anhydride MAH grafting agent is 100:1:0.5:1, stir fusing by singe screw inorganic polymer grafting is connected together, modified fusion temperature is 240 DEG C, after modification, get the primary material of Y2600PP: modified plastic particles: glass fibre (weight ratio) is 5:1:1, make the leakage dropping-board product being of a size of 1500mm × 600mm × 35mm.
Carry out intensity detection according to corresponding national standard, its index is tensile strength is 59.76Mpa, and shock strength is 46.4Mpa, and elongation at break is 4.5%, and strutbeam unnotched impact strength is 41.0kJ/m
2, exceed the intensity index of the sector standard prod, also exceed the index of embodiment one.Work-ing life to 6 ~ 8 year are at normal temperatures tested in its laboratory, and every mechanical property adds up to have 8% ~ 12% weaken, and meets service requirements completely.
Embodiment three: primary material modification is implemented
The ratio of weight and number of the primary material of Y2600PP, CMG9801 type compatilizer, 1010 type antiaging agents and maleic anhydride MAH grafting agent is 100:2:1:1.5, stir fusing by singe screw inorganic polymer grafting is connected together, modified fusion temperature is 190 DEG C, after modification, get the primary material of Y2600PP: modified plastic particles: glass fibre (weight ratio) is 4:1:0.8, make the leakage dropping-board product being of a size of 1500mm × 600mm × 35mm.
Intensity detection is carried out according to corresponding national standard, its index is tensile strength is 74.52Mpa, shock strength is 66.5Mpa, elongation at break is 7.1%, strutbeam unnotched impact strength is 42.7kJ/m2, exceed the intensity index of the sector standard prod, also exceed the index of embodiment one and embodiment two.Work-ing life to 6 ~ 8 year are at normal temperatures tested in its laboratory, and every mechanical property adds up to have 5% ~ 8% weaken, and meets service requirements completely.
Claims (6)
1. utilize the primary material of PP to prepare a method for LFT-D leakage dropping-board, it is characterized in that, comprise the following steps:
[1] primary for PP material is added melt pelletization after material modified modify and graft, become modified plastic particles;
[2] by modified plastic particles in step [1] and the primary material of PP that newly increases in proportion injection heating whipping appts, its uniform melt is made;
[3] in heating and stirring device, add glass fibre, carry out Homogeneous phase mixing heating once again with the output object of step [2];
[4] the hot stock of step [3] is extruded into Lou in dropping-board mould, produces Lou dropping-board product;
Material modifiedly in described step [1] comprise compatilizer, antiaging agent and grafting agent, wherein the ratio of weight and number of the primary material of PP, compatilizer, antiaging agent and grafting agent is 100:1-2:0.5-1:1-1.5, and modified fusion temperature is between 190 DEG C ~ 240 DEG C;
The ratio (weight) of modified plastic particles, the primary material of PP and glass fibre in described step [2] and step [3] is: 1:4-5:0.8-1.
2. the method that LFT-D leaks dropping-board prepared by the primary material of the PP of utilization according to claim 1, it is characterized in that: the primary material of PP in described step [1] is petrochemical materials Y2600pp.
3. the method that LFT-D leaks dropping-board prepared by the primary material of the PP of utilization according to claim 1, and it is characterized in that: described compatilizer is CMG9801 type, antiaging agent is 1010 types, and grafting agent is maleic anhydride MAH.
4. the method that LFT-D leaks dropping-board prepared by the primary material of the PP of utilization according to claim 1, it is characterized in that: the heating and stirring device in described step [2] is double-screw plastic extrusion machine.
5. the method that LFT-D leaks dropping-board prepared by the primary material of the PP of utilization according to claim 1, it is characterized in that: the primary material of described PP and modified plastic particles are infused in the single order screw rod import of double-screw plastic extrusion machine.
6. the method that LFT-D leaks dropping-board prepared by the primary material of the PP of utilization according to claim 1, it is characterized in that: described glass fibre is added on the second order screw rod import of double-screw plastic extrusion machine.
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| CN201510611291.2A CN105061899A (en) | 2015-09-23 | 2015-09-23 | Method for preparing LFT-D (long fiber reinforced thermoplastic in direct processing) dung leakage plate from PP (polypropylene) raw material |
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| CN201510611291.2A CN105061899A (en) | 2015-09-23 | 2015-09-23 | Method for preparing LFT-D (long fiber reinforced thermoplastic in direct processing) dung leakage plate from PP (polypropylene) raw material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107325412A (en) * | 2017-05-27 | 2017-11-07 | 山东阳春羊奶乳业有限公司 | A kind of sheep bed screen floor for manure and preparation method thereof |
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| CN103275393A (en) * | 2013-05-28 | 2013-09-04 | 苏州润佳工程塑料股份有限公司 | Glass fiber composite material applied to thin-walled part and preparation method thereof |
| CN104441671A (en) * | 2014-09-26 | 2015-03-25 | 陕西创源智汇新材料科技股份有限公司 | Method for preparing LFT-D (long fiber reinforced thermoplastic composite) dung draining plate by utilizing production leftovers |
| CN104756881A (en) * | 2013-12-31 | 2015-07-08 | 郑州翎羽新材料有限公司 | Processing method of thermoplastic filament composite material excrement leaking plate |
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- 2015-09-23 CN CN201510611291.2A patent/CN105061899A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103275393A (en) * | 2013-05-28 | 2013-09-04 | 苏州润佳工程塑料股份有限公司 | Glass fiber composite material applied to thin-walled part and preparation method thereof |
| CN104756881A (en) * | 2013-12-31 | 2015-07-08 | 郑州翎羽新材料有限公司 | Processing method of thermoplastic filament composite material excrement leaking plate |
| CN104441671A (en) * | 2014-09-26 | 2015-03-25 | 陕西创源智汇新材料科技股份有限公司 | Method for preparing LFT-D (long fiber reinforced thermoplastic composite) dung draining plate by utilizing production leftovers |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107325412A (en) * | 2017-05-27 | 2017-11-07 | 山东阳春羊奶乳业有限公司 | A kind of sheep bed screen floor for manure and preparation method thereof |
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Application publication date: 20151118 |