CN1693357A - Polypropylene material with wood performance and its preparation process - Google Patents
Polypropylene material with wood performance and its preparation process Download PDFInfo
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- CN1693357A CN1693357A CN 200510025911 CN200510025911A CN1693357A CN 1693357 A CN1693357 A CN 1693357A CN 200510025911 CN200510025911 CN 200510025911 CN 200510025911 A CN200510025911 A CN 200510025911A CN 1693357 A CN1693357 A CN 1693357A
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- polypropylene
- polypropylene material
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- Injection Moulding Of Plastics Or The Like (AREA)
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Abstract
A polypropylene material with wooden property is prepared from polypropene, talc powder and zin stearate through proportional mixing, drying and injection moulding. Its advantages are proper toughness, impact resistance and rigidity, and high machinability.
Description
Technical field
The present invention relates to macromolecular material, specifically is about a kind of polypropylene material with wood performance and preparation method thereof.
Background technology
In some device, the handrail inner frame on massage armchair for example, must process with injection molding, the skeleton after the moulding is required to have rubbing property preferably, impact-resistance and rigidity, also require to have certain wood characteristics simultaneously, because of wrapping up with corium the skeleton outside, the combination of corium and skeleton is to rob with vapour to clench admittedly the handrail after wrapping, nail can not come off (except that special tool takes out), and skeleton can not have slight crack or distortion.Just macromolecular material can't satisfy above-mentioned requirements really at present.We are through the research of material, selection is carried out modification to existing polypropylene material, to having the property of rubbing but the insufficient existing polypropylene material of rigidity, improve its rigidity afterwards and made it by modification and had wood performance, so that a kind of new polypropylene material with wood performance to be provided, be used to satisfy the demand in market.
Summary of the invention
The invention provides a kind of polypropylene material with wood performance, is existing polypropylene material to be carried out modification form.This material is by polypropylene, and talcum powder and Zinic stearas are formed.Three's weight ratio is a polypropylene: talcum powder: Zinic stearas=1: 0.3-0.4: 0.005-0.015.
Polyacrylic molecular weight is 8 * 10
4-1.2 * 10
5
Talcum powder can increase the rigidity and the wood performance of plastic as weighting agent.
Zinic stearas can promote polypropylene and talcous evenly mixed as diffusant, guarantees that the Properties of Polypropylene after the modification is stable.
The present invention provides a kind of preparation method with polypropylene material of wood performance again, comprises three key steps:
(1) batch mixing is with polypropylene, and talcum powder and Zinic stearas are with 1: 0.3-0.4: the part by weight of 0.005-0.015 is uniformly mixed into the polypropylene compound;
(2) the dry pack drying of drying, temperature 90-110 ℃, time 3-4 hour, dried polypropylene compound was used for next step injection molding, or it is stand-by to put into sealing bag;
(3) injection molding
Adopt conventional technical process: heating → preformed → injection → locked mode → pressurize → cooling → Qi Mo → eject → pack.
Processing condition: Heating temperature 160-180 ℃, 10-12 second inject time,
Injection speed (three grades, ± 15%) 35 meter per seconds → 55 meter per seconds → 25 meter per seconds,
Injection pressure 60-70kg/cm
2, clamp force 90-110kg/cm
2,
Packing pressure 15-20kg/cm
2, dwell time 1-3 second,
30-40 second cooling time.
After the above-mentioned preparation method of process carried out the modification of science to polypropylene, the polypropylene material that makes had original rubbing property and impact-resistance, but has increased its rigidity, and make it to have the performance of wood materials, can adopt traditional wood working technology to this material, as saw, dig, means such as nail are processed.This material is assemblied on the massage armchair on probation, can satisfy service requirements and obtain good result.This material is to mould goods, and utilization thermoplastic shaping technology can be processed into structural part and other parts like the timber easily, has overcome real wood and normally has been made as the master with artificial craft, the high and inefficient shortcoming of tooling cost.Particularly the complicated goods of shape use thermoplastic shaping, can shorten the making shaping cycle greatly, thereby increase work efficiency.
Embodiment
Embodiment 1 has the preparation of the polypropylene material of wood performance
Take by weighing polypropylene (molecular weight 1 * 10
5) 100 kilograms, 30 kilograms of talcum powder and Zinic stearas are uniformly mixed into compound for 0.5 kilogram.The drying of in the loft drier that dries (Germany make HeraeusD-72336), drying, 110 ℃ of drying temperatures, 3 hours time of drying, dried polypropylene compound is used for injection molding.Adopt Ningbo HT300 injection moulding machine to carry out injection molding, conventional technical process is: heating → preformed → injection → locked mode → pressurize → cooling → Qi Mo → eject → pack, the concrete operations condition is: feeding quantity 130mm, 160 ℃ of Heating temperatures, 10 seconds inject time, injection speed (three grades) 35 meter per seconds → 55 meter per seconds → 25 meter per seconds, injection pressure 60kg/cm
2, clamp force 100kg/cm
2, packing pressure 15kg/cm
2, 2 seconds dwell times, 30 seconds cooling times.
Embodiment 2 has the preparation of the polypropylene material of wood performance
Take by weighing polypropylene (molecular weight 8 * 10
4) 100 kilograms, 40 kilograms of talcum powder and Zinic stearas are uniformly mixed into compound for 10 kilograms.The drying of in the loft drier that dries (Germany make HeraeusD-72336), drying, 100 ℃ of drying temperatures, 4 hours time of drying, dried polypropylene compound is used for injection molding.Adopt Ningbo HT300 injection moulding machine to carry out injection molding, conventional technical process is: heating → preformed → injection → locked mode → pressurize → cooling → Qi Mo → eject → pack, the concrete operations condition is: feeding quantity 135mm, 170 ℃ of Heating temperatures, 12 seconds inject time, injection speed (three grades) 35 meter per seconds → 55 meter per seconds → 25 meter per seconds, injection pressure 65kg/cm
2, clamp force 90kg/cm
2, packing pressure 20kg/cm
2, 3 seconds dwell times, 40 seconds cooling times.
Claims (3)
1, a kind of polypropylene material with wood performance is characterized in that described polypropylene material is by polypropylene, and talcum powder and Zinic stearas are formed, and three's part by weight is a polypropylene: talcum powder: Zinic stearas=1: 0.3-0.4: 0.005-0.015.
2, polypropylene material as claimed in claim 1 is characterized in that described polyacrylic molecular weight is 8 * 10
4-1.2 * 10
5
3, the described preparation method with polypropylene material of wood performance of claim 1, comprise dry (3) injection molding of three steps (1) batch mixings (2): technical process is characterized in that for heating → preformed → injection → locked mode → pressurize → cooling → Qi Mo
(1) batch mixing is with polypropylene, and talcum powder and Zinic stearas are with 1: 0.3-0.4: the part by weight of 0.005-0.015 mixes;
(2) drying temperature 90-110 ℃, time 3-4 hour;
(3) injection molding Heating temperature 160-180 ℃, 10-12 second inject time, injection speed 35 meter per seconds → 55 meter per seconds → 25 meter per seconds, injection pressure 60-70kg/cm
2, clamp force 90-110kg/cm
2, packing pressure 15-20kg/cm
2, dwell time 1-3 second, 30-40 second cooling time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510025911 CN1693357A (en) | 2005-05-18 | 2005-05-18 | Polypropylene material with wood performance and its preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510025911 CN1693357A (en) | 2005-05-18 | 2005-05-18 | Polypropylene material with wood performance and its preparation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1693357A true CN1693357A (en) | 2005-11-09 |
Family
ID=35352494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510025911 Pending CN1693357A (en) | 2005-05-18 | 2005-05-18 | Polypropylene material with wood performance and its preparation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1693357A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100441630C (en) * | 2006-04-30 | 2008-12-10 | 华侨大学 | Preparation method of talc reinforced thermoplastic timber/maleic anhydride grafted polypropylene composite material |
| CN104985777A (en) * | 2015-07-07 | 2015-10-21 | 安徽华胤家具有限公司 | Technique for machining plastic five-star leg of pneumatic chair |
-
2005
- 2005-05-18 CN CN 200510025911 patent/CN1693357A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100441630C (en) * | 2006-04-30 | 2008-12-10 | 华侨大学 | Preparation method of talc reinforced thermoplastic timber/maleic anhydride grafted polypropylene composite material |
| CN104985777A (en) * | 2015-07-07 | 2015-10-21 | 安徽华胤家具有限公司 | Technique for machining plastic five-star leg of pneumatic chair |
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |