CN103724902A - Resin material molding body - Google Patents
Resin material molding body Download PDFInfo
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- CN103724902A CN103724902A CN201310730156.0A CN201310730156A CN103724902A CN 103724902 A CN103724902 A CN 103724902A CN 201310730156 A CN201310730156 A CN 201310730156A CN 103724902 A CN103724902 A CN 103724902A
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- unsaturated fatty
- fatty acids
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Abstract
The invention aims to provide a low-molding-shrinkage thermoplastic resin composition which can not generate blockage or adhesion at die molding temperature (generally 80 DEG C and above, and often 100-120 DEG C). The composition comprises the following components: 60-90 parts of first part (copolymer of vinyl-alpha,beta-unsaturated fatty acids and alpha,beta-unsaturated fatty acid esters), 1-5 parts of second part (terpolymer using alpha-olefin, glycidyl acrylate and vinyl acid ester as monomers) and 15-30 parts of third part (polyethylene). The vinyl-alpha,beta-unsaturated fatty acids account for 10-15% in the first part. The alpha,beta-unsaturated fatty acids in the vinyl-alpha,beta-unsaturated fatty acids or alpha,beta-unsaturated fatty acid esters are fatty acids of which the carbon chain length is 3-7 carbon atoms, the carbon chain length of the formed esters is 5-12 carbon atoms, and the polymerization degree is controlled at 200-500.
Description
Technical field
The present invention relates to one and be applicable to formed in mould thermoplastic resin forming body.
Background technology
Vinyl-α, the multipolymer of β-unsaturated fatty acids and carboxylic acid is good in aspect performances such as transparency, cohesiveness (for example, with metal and glass), intensity, snappiness, elasticity, is widely used in the materials such as building materials, diaphragm.Its shortcoming is thermotolerance deficiency, thereby when mould molding, is easily bonded on roller bearing or forms and block, and the speed of working continuously is exerted an influence, and easily shrink after thermoforming, affects quality product.
Summary of the invention
The object of the invention is at mould molding temperature (generally, more than 80 ℃, common is 100 ℃～120 ℃) and can not produce obstruction or bonding, the thermoplastic resin composition that molding shrinkage is low.
The present invention is achieved by the following technical solutions:
Described molding resin material body, comprises following component, first part: vinyl-α, β-unsaturated fatty acids and α, the interpolymer of β-unsaturated fatty acid ester, 60～90 parts; Second section: with alhpa olefin, glycidyl acrylate, 1～5 part of the terpolymers that ethene acid esters is monomer; Part III: 15～30 parts of polyethylene.
Further, the vinyl-α in described first part, β-unsaturated fatty acids proportion is 10%～15%.
Further, vinyl-the α of described first part, β-unsaturated fatty acids or α, α described in β-unsaturated fatty acid ester, β-unsaturated fatty acids is the lipid acid of carbon chain lengths at 3～7 carbon atoms, the ester carbon chain lengths of its formation is 5～12 carbon atoms, and the polymerization degree is controlled between 200～500.
Further, the each free carbon chain length in described second section is controlled at 3～7 carbon atoms, and after it forms ester, carbon chain lengths is at 5～12, and the polymerization degree is controlled between 200～500.
Further, the polyolefine in described Part III is one or more the mixture in homopolymer and the linear low density polyethylene of Atactic Polypropylene, propylene, and carbon chain lengths is at 3～7 carbon atoms; The polymerization degree is controlled between 100～200.
Beneficial effect of the present invention illustrates with embodiment detected result in the lump in embodiment part.
Embodiment
Below in conjunction with embodiment, the present invention is further elaborated:
Umber described in this part unless otherwise indicated, all refers to mass fraction.
The present invention includes following component:
First part: vinyl-α, β-unsaturated fatty acids and α, the interpolymer of β-unsaturated fatty acid ester, 60～90 parts; Second section: with alhpa olefin, glycidyl acrylate, 1～5 part of the terpolymers that ethene acid esters is monomer; Part III: 15～30 parts of polyethylene.
Vinyl-α in described first part, β-unsaturated fatty acids proportion is 10%～15%.
Vinyl-the α of described first part, β-unsaturated fatty acids or α, the α described in β-unsaturated fatty acid ester, β-unsaturated fatty acids is the lipid acid of carbon chain lengths at 3～7 carbon atoms.As vinylformic acid, methacrylic acid, β-crotonic acid, toxilic acid, anhydrous methylene-succinic acid, while selecting sour under this length of carbochain, product snappiness is better, after its formation ester, carbon chain lengths is good at 5～12, esterification selects other acid or alcohol as propionic acid, butyric acid, propyl alcohol, butanols etc., the length of coordinated carbochain; The polymerization degree is controlled at 200～500 for good.
Each free carbon chain length in described second section is controlled at 3～7 carbon atoms, and it forms after ester carbon chain lengths and selects other acid or propionic acid, butyric acid, propyl alcohol, butanols etc. for alcohol, the length of coordinated carbochain at 5～12 for good esterification; The polymerization degree is controlled at 200～500 for good.
Polyolefine in described Part III is one or more the mixture in homopolymer and the linear low density polyethylene of Atactic Polypropylene, propylene, and carbon chain lengths is at 3～7 carbon atoms; The polymerization degree is controlled at 100～200 for good.
Manufacture method of the present invention is as follows:
Second section and Part III melting mixing are mixed with first part after evenly again.
Moulding can obtain formed body of the present invention in the manner described above, and it can be used as skin material and uses, and inner side is attached with non-setting adhesive and is combined with the article that need protection, and outside, as protective layer, can be simple layer, can be also composite bed.
Above-mentioned formed body can also be made multilayer material, and its main application is composite industrial sheet material, prevents from producing bonding with other metals that contact or glass equipment or element etc. under hot environment.Middle part sticks with glue knot, and pros and cons preferably adopts the resin-formed body of different material, in case result of use of certain one side can be changed with another side when bad.
The present invention also can be used as equipment component as bearing etc., but because the lower heavy duty industrial that is not suitable for of the strength of materials, its main purpose is still to prevent bonding, for example, can be used as the travelling belt of streamline or the surfacing of roller bearing, and it is difficult for producing with the article of surface transport and bonds.
Embodiment 1
First part: the interpolymer of vinylacrylic acid and β-crotonic acid, 60 parts; Second section: with alhpa olefin, glycidyl acrylate, 1 part of the terpolymers that ethene acid esters is monomer; Part III: 30 parts of polyethylene.Vinyl-α in described first part, β-unsaturated fatty acids proportion is 15%, the polymerization degree, between 400～500, all selects butanols or acetic acid to coordinate corresponding acid or alcohol during lipid esterification used.When described second section is selected alpha-butylene, glycidyl acrylate, ethene acid esters, select butanols to coordinate esterification, the polymerization degree is between 400～500.Polyolefine in described Part III is the homopolymer of propylene, and average carbon number is at 4.4 carbon atoms; The polymerization degree is controlled between 100～200.
Above-mentioned product can not soften under 120 degree, during moulding, does not shrink, and all can not produce bonding phenomenon with glass or metal die or equipment, thereby can not produce bonding and block.
Embodiment 2
First part: the interpolymer of methacrylic acid and methylene-succinic acid, 90 parts; Second section: with alhpa olefin, glycidyl acrylate, 1 part of the terpolymers that ethene acid esters is monomer; Part III: 15 parts of polyethylene.Vinyl-α in described first part, β-unsaturated fatty acids proportion is 10%, the polymerization degree, between 200～300, all selects butanols or acetic acid to coordinate corresponding acid or alcohol during lipid esterification used.When described second section is selected alpha-butylene, glycidyl acrylate, ethene acid esters, select ethanol to coordinate esterification, the polymerization degree is between 200～300.Polyolefine in described Part III is linear low density polyethylene, and average carbon number is at 4.7 carbon atoms; The polymerization degree is controlled between 100～200.
Above-mentioned product can not soften under 120 degree, during moulding, does not shrink, and all can not produce bonding phenomenon with glass or metal die or equipment, thereby can not produce bonding and block.
Embodiment 3
First part: the interpolymer of methacrylic acid and toxilic acid, 70 parts; Second section: with alhpa olefin, glycidyl acrylate, 2 parts of the terpolymers that ethene acid esters is monomer; Part III: 20 parts of polyethylene.Vinyl-α in described first part, β-unsaturated fatty acids proportion is 12%, the polymerization degree, between 200～300, all selects butanols or butyric acid to coordinate corresponding acid or alcohol during lipid esterification used.When described second section is selected alpha-butylene, glycidyl acrylate, ethene acid esters, select ethanol to coordinate esterification, the polymerization degree is between 300～400.Polyolefine in described Part III is Atactic Polypropylene, and average carbon number is at 4.2 carbon atoms; The polymerization degree is controlled between 100～200.
Above-mentioned product can not soften under 120 degree, during moulding, does not shrink, and all can not produce bonding phenomenon with glass or metal die or equipment, thereby can not produce bonding and block.
Embodiment 4
First part: the interpolymer of β-crotonic acid and toxilic acid, 80 parts; Second section: with alhpa olefin, glycidyl acrylate, 4 parts of the terpolymers that ethene acid esters is monomer; Part III: 25 parts of polyethylene.Vinyl-α in described first part, β-unsaturated fatty acids proportion is 15%, the polymerization degree, between 200～300, all selects butanols or butyric acid to coordinate corresponding acid or alcohol during lipid esterification used.When described second section is selected alpha-butylene, glycidyl acrylate, ethene acid esters, select ethanol to coordinate esterification, the polymerization degree is between 400～500.Polyolefine in described Part III is the homopolymer of propylene and the mixture of linear low density polyethylene, and blending ratio is 1 to 3, and average carbon number is at 4.2 carbon atoms; The polymerization degree is controlled between 100～200.
Above-mentioned product can not soften under 120 degree, during moulding, does not shrink, and all can not produce bonding phenomenon with glass or metal die or equipment, thereby can not produce bonding and block.
Embodiment 5
First part: the interpolymer of β-crotonic acid and methylene-succinic acid, 65 parts; Second section: with alhpa olefin, glycidyl acrylate, 3 parts of the terpolymers that ethene acid esters is monomer; Part III: 25 parts of polyethylene.Vinyl-α in described first part, β-unsaturated fatty acids proportion is 13%, the polymerization degree, between 200～300, all selects butanols or butyric acid to coordinate corresponding acid or alcohol during lipid esterification used.When described second section is selected alpha-butylene, glycidyl acrylate, ethene acid esters, select ethanol to coordinate esterification, the polymerization degree is between 400～500.The mixture of the Atactic Polypropylene in described Part III, the homopolymer of propylene, linear low density polyethylene, blending ratio is 1 to 3 to 3, average carbon number is at 4.2 carbon atoms; The polymerization degree is controlled between 100～200.
Above-mentioned product can not soften under 120 degree, during moulding, does not shrink, and all can not produce bonding phenomenon with glass or metal die or equipment, thereby can not produce bonding and block.
The detailed description of this patent being made according to above specification sheets; its object is to be convenient to those skilled in the art better understands application mode and the scope of this patent; can not be interpreted as limitation of the present invention; in conjunction with the general knowledge of above content and this area; under the prerequisite of aim that does not depart from this patent, the alternative that is equal to that those skilled in the art make the technical scheme of recording in this patent document still falls into protection scope of the present invention.
Claims (5)
1. a molding resin material body, is characterized in that, comprises following component, first part: vinyl-α, β-unsaturated fatty acids and α, the interpolymer of β-unsaturated fatty acid ester, 60～90 parts; Second section: with alhpa olefin, glycidyl acrylate, 1～5 part of the terpolymers that ethene acid esters is monomer; Part III: 15～30 parts of polyethylene.
2. molding resin material body according to claim 1, is characterized in that: the vinyl-α in described first part, β-unsaturated fatty acids proportion is 10%～15%.
3. molding resin material body according to claim 1, it is characterized in that: the vinyl-α of described first part, β-unsaturated fatty acids or α, α described in β-unsaturated fatty acid ester, β-unsaturated fatty acids is the lipid acid of carbon chain lengths at 3～7 carbon atoms, the ester carbon chain lengths of its formation is 5～12 carbon atoms, and the polymerization degree is controlled between 200～500.
4. molding resin material body according to claim 1, is characterized in that: the each free carbon chain length in described second section is controlled at 3～7 carbon atoms, and after it forms ester, carbon chain lengths is at 5～12, and the polymerization degree is controlled between 200～500.
5. molding resin material body according to claim 1, it is characterized in that: the polyolefine in described Part III is one or more the mixture in homopolymer and the linear low density polyethylene of Atactic Polypropylene, propylene, and carbon chain lengths is at 3～7 carbon atoms; The polymerization degree is controlled between 100～200.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310730156.0A CN103724902A (en) | 2013-12-26 | 2013-12-26 | Resin material molding body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310730156.0A CN103724902A (en) | 2013-12-26 | 2013-12-26 | Resin material molding body |
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| CN103724902A true CN103724902A (en) | 2014-04-16 |
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| CN201310730156.0A Pending CN103724902A (en) | 2013-12-26 | 2013-12-26 | Resin material molding body |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0922729A1 (en) * | 1997-12-10 | 1999-06-16 | E.I. Du Pont De Nemours And Company | Thermoformable thermoplastic polymer alloy compositions |
| CN1930231A (en) * | 2004-01-08 | 2007-03-14 | 纳幕尔杜邦公司 | Composition comprising ethylene copolymers and polyolefin |
| WO2013034701A1 (en) * | 2011-09-09 | 2013-03-14 | Total Research & Technology Feluy | Multilayered rotomoulded articles comprising a layer of polyester |
-
2013
- 2013-12-26 CN CN201310730156.0A patent/CN103724902A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0922729A1 (en) * | 1997-12-10 | 1999-06-16 | E.I. Du Pont De Nemours And Company | Thermoformable thermoplastic polymer alloy compositions |
| CN1930231A (en) * | 2004-01-08 | 2007-03-14 | 纳幕尔杜邦公司 | Composition comprising ethylene copolymers and polyolefin |
| WO2013034701A1 (en) * | 2011-09-09 | 2013-03-14 | Total Research & Technology Feluy | Multilayered rotomoulded articles comprising a layer of polyester |
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Address after: 523000 Guangdong Province, Dongguan City Zhangmutou town Baiguo cave village Baida Industrial Street Panlong Road No. 8 Applicant after: DONGGUAN GRAND-HI INDUSTRY CO., LTD. Address before: 523000 Guangdong Province, Dongguan City Zhangmutou town Baiguo cave village Baida Industrial Street Panlong Road No. 8 Applicant before: Dongguan Guanghaida Rubber & Plastic Co., Ltd. |
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Application publication date: 20140416 |