CN101955637A - Glass fiber reinforced environmental-friendly PBT (Polybutylece Terephthalate) material without exposing fiber - Google Patents
Glass fiber reinforced environmental-friendly PBT (Polybutylece Terephthalate) material without exposing fiber Download PDFInfo
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- CN101955637A CN101955637A CN2010105072934A CN201010507293A CN101955637A CN 101955637 A CN101955637 A CN 101955637A CN 2010105072934 A CN2010105072934 A CN 2010105072934A CN 201010507293 A CN201010507293 A CN 201010507293A CN 101955637 A CN101955637 A CN 101955637A
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Abstract
The invention relates to a glass fiber reinforced environmental-friendly PBT (Polybutylece Terephthalate) material without exposing a fiber, which comprises the following components in percentage by weight: 49.5-95 percent of PBT, 5-50 percent of alkali-free glass fiber, 0.1-3.0 percent of heat stabilizer, 0.1-3.0 percent of glass fiber treating agent and 1.3-5.5 percent of other auxiliary agents. The performance of the glass fiber reinforced PBT raw material without exposing the fiber of the invention is close to that of a similar material with unimproved appearance, and the invention has the advantage of convenient production and purchase, changes the condition that performance and appearance can not be taken into consideration simultaneously when a user designs a product and also meets all environmental-friendly requirements, thereby comprehensively improving the competitiveness of the product.
Description
Technical field
The present invention relates to a kind of organic polymer composite, more particularly, relate to a kind of fine glass enhancing environmental protection PBT material that do not reveal, the invention still further relates to the method for making this PBT raw material.
Background technology
PBT uses one of maximum several engineering plastics at present, and fusing point is higher, has good physical and mechanical property and electrical property.But shortcomings such as the heat-drawn wire of pure PBT resin is lower have limited the application of PBT, and then have dwindled downstream industry design engineer's selection leeway again.Therefore, launched PBT is carried out composite modified research.And improve the comprehensive employed the most universal the most effective method of physical and mechanical property of PBT material, adopt glass fibre to strengthen exactly.But glass fibre strengthens PBT when significantly improving the Material Physics mechanical property, individual distinct disadvantage is arranged again, exactly because glass and PBT two-phase interface are difficult for good combination, cause producing the glass emergence on the surface phenomenon at product surface easily, the said dew fibre of just common insider/floating fine, so obviously reduce product surface smooth finish, made product surface coarse and grow dim, thereby limited the application of this starting material on the product that surface smoothness or aesthetic measure are had relatively high expectations.The present technique invention produces in order effectively to overcome this phenomenon.
Summary of the invention
The objective of the invention is to, a kind of fine glass enhancing environmental protection PBT material that do not reveal is provided, performance is similar with the same type of material of modify appearance not, and production procurement is convenient, when having changed user's deisgn product performance and outward appearance the two can only select the situation of one, also meet simultaneously all environmental requirements, comprehensive like this product competitiveness that improved.
Technical scheme provided by the invention is as follows: PBT:49.5-95%, alkali-free glass fiber: 5-50%; Thermo-stabilizer: 0.1-3.0%, glass treatment agent: 0.1-3.0, other auxiliary agents: 1.3-5.5;
The glass that does not reveal fibre of the present invention strengthens environmental protection PBT preparation methods, comprise the steps: earlier PBT, thermo-stabilizer, glass treatment agent, other auxiliary agents proportionally to be mixed 10 minutes in the mixer high speed after the weighing, after in time under the screw combinations situation that medium tenacity is sheared, add alkali-free glass fiber in proportion again by the side through twin screw extruder, under vacuum state, with mixing the extruding of 250 degree, the pelletizing of water-cooled tie rod makes through screening and dewatering does not reveal fine glass enhancing environmental protection PBT material.
The present invention does not reveal fine glass, and to strengthen the performance of environmental protection PBT material similar with the same type of material of modify appearance not, and production procurement is convenient, when having changed user's deisgn product performance and outward appearance the two can only select the situation of one, also meet simultaneously all environmental requirements, comprehensive like this product competitiveness that improved.
Embodiment
Below be the embodiment that fine glass strengthens environmental protection PBT material that do not reveal of the present invention, therefore do not limit protection scope of the present invention.
Embodiment one, and a kind of fine glass enhancing environmental protection PBT material that do not reveal is provided, and forms PBT:65%, alkali-free glass fiber: 31% by weight by following composition; Thermo-stabilizer: 0.5%, the glass treatment agent: 1.0%, other auxiliary agents: 2.5%;
Earlier PBT, thermo-stabilizer, glass treatment agent, other auxiliary agents were proportionally mixed 10 minutes in the mixer high speed after the weighing, mixer adopts stainless steel, paddle should with the barrel gap less than 0.5 centimetre, the supplementary material mixed effect should visual various particles and powder even substantially, do not have obvious agglomerate or gather use in time then; Twin screw extruder uses 36 length-to-diameter ratios, and medium tenacity is sheared; The Halogen alkali-free glass fiber is added in proportion by the side; Keep vacuum state and 250 the degree condition is mixing extrudes; Adopt water-cooled tie rod pelletizing mode, promptly make through screening and dewatering and do not reveal fine glass enhancing environmental protection PBT material.
The above; it only is the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (2)
1. one kind is not revealed fine glass enhancing environmental protection PBT material, it is characterized in that: form PBT:49.5-95%, alkali-free glass fiber: 5-50% by weight by following composition; Thermo-stabilizer: 0.1-3.0%, glass treatment agent: 0.1-3.0, other auxiliary agents: 1.3-5.5.
2. one kind is not revealed fine glass enhancing environmental protection PBT preparation methods, it is characterized in that: comprise the steps: earlier PBT, thermo-stabilizer, glass treatment agent, other auxiliary agents proportionally to be mixed 10 minutes in the mixer high speed after the weighing, the back is timely carries out mixing extrude by side adding Halogen alkali-free glass fiber through twin screw extruder again under the screw combinations situation that medium tenacity is sheared, the pelletizing of water-cooled tie rod makes a kind of fine glass enhancing environmental protection PBT material that do not reveal through screening and dewatering again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105072934A CN101955637A (en) | 2010-10-14 | 2010-10-14 | Glass fiber reinforced environmental-friendly PBT (Polybutylece Terephthalate) material without exposing fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105072934A CN101955637A (en) | 2010-10-14 | 2010-10-14 | Glass fiber reinforced environmental-friendly PBT (Polybutylece Terephthalate) material without exposing fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101955637A true CN101955637A (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105072934A Pending CN101955637A (en) | 2010-10-14 | 2010-10-14 | Glass fiber reinforced environmental-friendly PBT (Polybutylece Terephthalate) material without exposing fiber |
Country Status (1)
| Country | Link |
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| CN (1) | CN101955637A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102898795A (en) * | 2012-11-05 | 2013-01-30 | 科创聚合物(苏州)有限公司 | Production process of unexposed-glass-fiber environment-friendly PBT material |
| CN103834148A (en) * | 2014-03-03 | 2014-06-04 | 上海瀚氏模具成型有限公司 | High heat-proof fiber-reinforced PBT plastic for automotive interior parts and preparation method thereof |
-
2010
- 2010-10-14 CN CN2010105072934A patent/CN101955637A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102898795A (en) * | 2012-11-05 | 2013-01-30 | 科创聚合物(苏州)有限公司 | Production process of unexposed-glass-fiber environment-friendly PBT material |
| CN103834148A (en) * | 2014-03-03 | 2014-06-04 | 上海瀚氏模具成型有限公司 | High heat-proof fiber-reinforced PBT plastic for automotive interior parts and preparation method thereof |
| CN103834148B (en) * | 2014-03-03 | 2015-10-14 | 上海瀚氏模具成型有限公司 | The resistance to high thermal fiber of a kind of automotive upholstery strengthens PBT plastic and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| 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 |
Open date: 20110126 |