CN1063697A - Polyolefin packing material - Google Patents
Polyolefin packing material Download PDFInfo
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- CN1063697A CN1063697A CN 92101643 CN92101643A CN1063697A CN 1063697 A CN1063697 A CN 1063697A CN 92101643 CN92101643 CN 92101643 CN 92101643 A CN92101643 A CN 92101643A CN 1063697 A CN1063697 A CN 1063697A
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- polyolefin
- parts
- packing material
- ground dolomite
- filler
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Abstract
The invention relates to a kind of new type polyolefin filling master batch that makes with the rhombspar powder as filler, its weight consists of: 7～25 parts of polyolefin carrier resins; 100 parts of ground dolomite fillers; 3～15 parts of dispersion agents; Properties-correcting agent: 0.2～2.5 part of coupling agent, linking agent≤1.1 part.1.5～4.5 parts of lubricants.This ground dolomite polyolefin packing material is compared not only cheap with the light calcium carbonate polyolefin packing material.The whiteness height, and can obviously improve the tensile yield of polyolefin plastics, melting index and aging resistance still can guarantee the good processing flowability energy under a large amount of filling conditions, be a kind of well behaved polyolefin packing material.
Description
The invention relates to a kind of new type polyolefin filling master batch that makes with the rhombspar powder as filler.
The effect of plastic filler is can conveniently add cheap filler when guaranteeing excellent machinability and product properties morely, reduces cost to reach; Improve the purpose of processibility and product properties.The general polyolefin packing material of Cai Yonging, generally form by carrier polyolefin resin, dispersion agent, properties-correcting agent and filler, at present the filler that adopts is generally light calcium carbonate (CN86107768A.CN87102663A.CN88101059A.CN88101602A.CN881016 04A) but because the price of light calcium carbonate is higher relatively, and its loading level is when high slightly, can cause the rising significantly of plastic flow viscosity, cause poor processability.Therefore seeking a kind of cheap functional filler becomes the problem of concern to prepare inexpensive filling master batch.
The objective of the invention is to propose that a kind of price is low, whiteness is high, well behaved polyolefin packing material, it does not only reduce former polyolefin resin physical and mechanical properties after adding polyolefin resin significantly, and under the situation of relatively large filling, still can guarantee to have the good processing flowability energy.
The polyolefin packing material that the present invention proposes is to be filler with the ground dolomite.Rhombspar is the double salt of a kind of lime carbonate and magnesiumcarbonate, and its major ingredient sees Table (1).The distribution of China's dolomite mineral
The major ingredient of table (1) rhombspar
| CaCO 3 MgCO 3 Sio 2? Al 2O 3 | ||||
| Content (%) | 48～56 35～45 6～13 0～3 | |||
Very wide, and output is big, makes ground dolomite easily with rhombspar in addition, so price is very cheap, only is 1/3～1/8 of lime carbonate price generally.Therefore use the effective way that it reduced cost, made full use of China's existing resource beyond doubt, increases economic efficiency as the filler of plastics.One grade light-weight calcium carbonate of ground dolomite and rubber and plastic processing usefulness compares, and some basic physical properties see Table (2).
The rerum natura of table (2) ground dolomite and lime carbonate relatively
Project is removed stone flour light calcium carbonate (one-level) in vain
Density (kg/m
3) 2,860 2720
Hardness (Mohs) 3.5-4 3
Whiteness (degree) 87-90 84
Water solubles pH value 7.68 〉=9
Free alkali (%) 0.084≤0.10 ★
Screenings (〉=115 μ m)
≤wt% 0.05 0.005★
Median size (μ m) 6 ± 2 1～3
Shape-dependent constant 0.6 0.04～0.2
Settling volume (ml/g) 0.9 〉=3.0 ★
Manganese content (wt%) 0.00095≤0.0045 ★
Iron level (wt%) 0.044≤0.1 ★
★: select from [the raw-material domestic and international technical qualification of rubber industry] (volume two)
Other data are actual measured value
From the data of table (2), know, the whiteness of ground dolomite is than light calcium carbonate height, this is owing to contain due to the more magnesiumcarbonate in the ground dolomite, this helps improving the whiteness of filled polyolefin, and the content of the harmful element manganese of ground dolomite and iron is less than light calcium carbonate, and, components such as silicon oxide-containing are neutral because of making it, this also helps improving filled polyolefin resin thermostability and ageing-resistant performance, in addition because in the median size of ground dolomite and the scope that shape-dependent constant is controlled at general compatibilization filler, and be a bit larger tham the level of light calcium carbonate, thereby make under the high filling condition of polyolefin plastics and still can keep good processing flowability.
The composition (weight) that the present invention proposes polyolefin packing material is:
7～25 parts of polyolefin carrier resins
3～15 parts of dispersion agents
Properties-correcting agent
0.2～2.5 part of coupling agent
Linking agent≤1.1 part
1.5～4.5 parts of lubricants
100 parts of fillers.
Filling master batch provided by the invention solves by following scheme:
(1) adopts the rhombspar powder as filler.Ground dolomite is made through selection by winnowing through crushing and screening or by the natural dolomite mineral of weathering by natural dolomite mineral, requires to be not more than 0.05% greater than the screenings weight of 115 microns (125 orders), and median size is at 6 ± 2 microns;
(2) vector resin adopts polyolefin resines such as chlorinatedpolyethylene, new LDPE (film grade) or polyethylene-vinyl acetic monomer;
(3) dispersion agent adopts clorafin, low-molecular-weight wax and phthalate low-molecular material;
(4) properties-correcting agent comprises coupling agent, linking agent and lubricant, and coupling agent adopts titanic acid ester and aluminic acid ester, and linking agent adopts bismaleimides, and lubricant adopts hard ester acid and hard acid ester salt, its proportioning following (by 100 parts of filler weight):
0.2～2.5 part of coupling agent
Linking agent≤1.1 part
1.5～4.5 parts of lubricants
(5) preparation method of filling master batch of the present invention carries out surface treatment with ground dolomite earlier, use coupling agent treatment ground dolomite 3～7 minutes down at 90～95 ℃, adding linking agent, lubricant and dispersion agent more successively mixed 5～12 minutes, mixed 3～8 minutes at last slice cooling back pelletizing packing with the plastifying vector resin.
Filling master batch of the present invention is compared with other filling master batch, has the whiteness height, price is low, can guarantee to still have after a large amount of the adding in polyolefin plastics the characteristics of good processing flowability.
Table (3) and table (4) are the prescription and the filling master batch performance of the ground dolomite filling master batch and the light calcium carbonate filling master batch of the embodiment of the invention, prescription A, B and C in the table (3) are the example of ground dolomite filling master batch, the filler of prescription D is a light calcium carbonate, the filling master batch example that all the other compositions and preparation method are all identical with prescription A, the sequence number 1,2,3 and 4 in the table (4) is respectively the example of filling new LDPE (film grade) with prescription A, B in the table (3), C and D filling master batch.
Embodiment:
The preparation method of filling master batch mixes ground dolomite down at 90～95 ℃ with the high-speed stirring machine earlier by filling master batch three kinds of prescriptions A, B of table (3) or C to carry out surface treatment in 6 minutes with coupling agent, again with linking agent and mix lubricant 6 minutes, added dispersant 4 minutes, at last but vector resin is mixed 6 minutes just slices, cooling back pelletizing with the ground dolomite after 145～160 ℃ of plasticizings and adding surface treatment on the open mill.These three kinds of filling master batchs are made filled polyethylene by 25 and 50 parts proportioning and new LDPE (film grade) blend respectively, and its performance sees Table (4).This filling master batch also can be used for other polyolefinic filling.
From the table (4) data as can be known, the sequence number that the ground dolomite filling master batch is filled new LDPE (film grade) is 1 to 3, though the new LDPE (film grade) (sequence number 4) that their tensile strength at yield is filled a little less than filling parent material of calcium carbonate, the former tensile yield and melting index are all apparently higher than the latter.When new LDPE (film grade) is 100 parts, masterbatch is filled consumption in 50 parts of scopes, loading level is high more, the degree of its raising is just obvious more, when filling 25 parts of consumptions, tensile yield and melting index improve 145% and 447% respectively, when filling 50 parts of consumptions, improve 245% and 857% respectively, also can find out from aging coefficient in addition, because the harmful element content of ground dolomite is less than light calcium carbonate and be neutral, and makes aging resistance be better than the filling master batch of light calcium carbonate, these have proved absolutely that the filling properties of ground dolomite filling master batch is better than the filling master batch of lime carbonate.
●: aging condition is 100 ℃ * 24hr
★: the masterbatch consumption is to be 25 parts of conversions by filler weight
◆: the masterbatch consumption is to be 50 parts of conversions by filler weight
Claims (2)
1, a kind of polyolefin packing material of being made up of filler, properties-correcting agent, dispersion agent and carrier polyolefin resin is characterized in that filler is a ground dolomite.
2, polyolefin packing material according to claim 1 is characterized in that forming (weight) by following proportioning:
7～25 parts of polyolefin carrier resins
3～15 parts of dispersion agents
Properties-correcting agent
0.2～2.5 part of coupling agent
Linking agent≤1.1 part
1.5～4.5 parts of lubricants
100 parts of fillers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92101643 CN1063697A (en) | 1992-03-16 | 1992-03-16 | Polyolefin packing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92101643 CN1063697A (en) | 1992-03-16 | 1992-03-16 | Polyolefin packing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1063697A true CN1063697A (en) | 1992-08-19 |
Family
ID=4939214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92101643 Pending CN1063697A (en) | 1992-03-16 | 1992-03-16 | Polyolefin packing material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1063697A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036787C (en) * | 1995-08-10 | 1997-12-24 | 南京化工大学 | Toughening mother particle for polyolefine plastics and producing process thereof |
| CN1298777C (en) * | 2003-01-16 | 2007-02-07 | 天津市君怡商贸有限公司 | Thermal oxidative degradation-promoting mother particle used for plastics and its preparation method |
| CN104945751A (en) * | 2015-05-27 | 2015-09-30 | 广东华声电器股份有限公司 | BIPB (bis(tert-butylperoxy isopropyl)benzene) master batch and preparation method thereof |
| WO2017118568A1 (en) | 2016-01-05 | 2017-07-13 | L'oreal | Applicator member for cosmetic product applicator, said applicator member being obtained at least partially by moulding at least one thermoplastic elastomer material |
-
1992
- 1992-03-16 CN CN 92101643 patent/CN1063697A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036787C (en) * | 1995-08-10 | 1997-12-24 | 南京化工大学 | Toughening mother particle for polyolefine plastics and producing process thereof |
| CN1298777C (en) * | 2003-01-16 | 2007-02-07 | 天津市君怡商贸有限公司 | Thermal oxidative degradation-promoting mother particle used for plastics and its preparation method |
| CN104945751A (en) * | 2015-05-27 | 2015-09-30 | 广东华声电器股份有限公司 | BIPB (bis(tert-butylperoxy isopropyl)benzene) master batch and preparation method thereof |
| WO2017118568A1 (en) | 2016-01-05 | 2017-07-13 | L'oreal | Applicator member for cosmetic product applicator, said applicator member being obtained at least partially by moulding at least one thermoplastic elastomer material |
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| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |