CN109337281A - A kind of high tenacity, high fire-retardance modified polyformaldehyde material and preparation method thereof - Google Patents
A kind of high tenacity, high fire-retardance modified polyformaldehyde material and preparation method thereof Download PDFInfo
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- CN109337281A CN109337281A CN201811033921.2A CN201811033921A CN109337281A CN 109337281 A CN109337281 A CN 109337281A CN 201811033921 A CN201811033921 A CN 201811033921A CN 109337281 A CN109337281 A CN 109337281A
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- polyformaldehyde
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L59/00—Compositions of polyacetals; Compositions of derivatives of polyacetals
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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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
Abstract
The invention discloses a kind of high tenacity, high fire-retardance polyoxymethylene modified material and preparation method thereof, the quality proportioning of polyoxymethylene modified material ingredient includes: 45 ~ 70 parts of polyformaldehyde；10 ~ 20 parts of modified glass-fiber；5 ~ 10 parts of toughener；5 ~ 8 parts of melamine；4 ~ 8 parts of inorganic nanometer powder；3 ~ 5 parts of poly ion liquid；2 ~ 3 parts of antioxidant；1 ~ 3 part of plasticizer.Polyoxymethylene modified material of the present invention has many advantages, such as that good flame resistance, good toughness, intensity are high, is with a wide range of applications.
Description
Technical field
The present invention relates to engineering plastics technical fields, and in particular to a kind of high tenacity, high fire-retardance modified polyformaldehyde material and
Preparation method.
Background technique
Polyformaldehyde be a kind of high intensity, high-melting-point, high crystalline thermoplastic, belong to five big general engineering plastics it
One.According to synthetic method and chemical structure difference, polyformaldehyde can be divided into homopolymerization polyformaldehyde and kematal.Polyformaldehyde point
Subchain is flexible, and structure is very regular, crystallinity (75 parts~85 parts) with higher, therefore good mechanical performance, such as high
Modulus, high rigidity, creep resistance, good stability of the dimension, hydroscopicity are low, self-lubricating property is good etc., are widely used in automobile, electricity
The fields such as son, electric appliance.However, polyformaldehyde strand high oxygen content, limit oxygen index is only 15 parts or so, belongs to and is easier
The plastics of burning, and there is melting drip phenomenon.In addition, high crystalline causes the notched Izod impact hit intensity of polyformaldehyde lower, pole
Big limits application of the polyformaldehyde in more areas, therefore the fire-retardant toughened study on the modification for carrying out polyformaldehyde has important meaning
Justice.
Summary of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide a kind of high tenacity, high fire-retardance modified polyformaldehyde material
And preparation method thereof, by the way that polyformaldehyde matrix is added in a variety of fire retardants, toughener and modified glass-fiber, effectively promoted poly-
The flame retardant property and notch impact strength of formaldehyde, have further widened the application range of polyformaldehyde engineering plastics.
To achieve the goals above, the present invention designs a kind of high tenacity, high fire-retardance improved polyoxymethylene composite material, should
Material includes following components and parts by weight content:
The polyformaldehyde is one of homopolymerization polyformaldehyde and kematal as a preferred technical solution,.
The toughener is one of polyurethane and nitrile rubber as a preferred technical solution,.
The toughener is one of polyurethane and nitrile rubber as a preferred technical solution,.
The antioxidant is one in Hinered phenols antioxidant and phosphite ester antioxidant as a preferred technical solution,
Kind is a variety of.
The inorganic nanometer powder is one of nano silica and nano aluminium oxide as a preferred technical solution,
Or it is a variety of.
The plasticizer is in dibutyl phthalate and dioctyl phthalate as a preferred technical solution,
It is one or more.
The poly ion liquid structural formula such as (I) is shown as a preferred technical solution:
The modified glass-fiber is to be prepared via a method which to obtain as a preferred technical solution:
By glass fibre adding into acetone, simultaneously ultrasound is evenly dispersed, and poly ion liquid is then added, and removes for 100 DEG C after stirring 4h
Organic solvent is gone to obtain modified glass-fiber, glass fibre length is 1~50nm.
The poly ion liquid degree of polymerization is 120 as a preferred technical solution, the weight of poly ion liquid and glass fibre
Amount is than being 1:10.
High tenacity of the present invention, high fire-retardance modified polyformaldehyde material preparation method, include the following steps:
A. all raw materials are distinguished into 90 DEG C of drying process 12h；
B. the raw material after drying is uniformly mixed according to the proportion and is added double screw extruder, be 170~180 in temperature
DEG C, revolving speed is melting extrusion under 80~100r/min, and cooling, granulation obtains modified polyformaldehyde material.
High tenacity prepared by the present invention, high fire-retardance modified polyformaldehyde material flame retardant property are good, excellent in cushion effect, resistance
Combustion agent is evenly dispersed and good with polyformaldehyde matrix compatibility, and raw materials used cheap, preparation process is simple, has and widely pushes away
Wide application prospect.
Specific embodiment
Further narration in detail will be done to the present invention below: the embodiment carries out real under the premise of technical solution of the present invention
It applies, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1
High tenacity, the preparation method of high fire-retardance improved polyoxymethylene composite in the present embodiment comprising the steps of:
1. the preparation of modified glass-fiber
40g glass fibre is placed in and is added in 5000mL there-necked flask, and 3000mL acetone is added, at room temperature mechanical stirring
And ultrasonic disperse, 4g poly ion liquid is then added, stirs 4h.And then vacuum distillation removes acetone under the conditions of 70 DEG C, obtains
To poly ion liquid modified glass-fiber.
2. polyformaldehyde is fire-retardant, toughening composition preparation
All raw materials are dried 12h at 90 DEG C respectively, the modification glass for then preparing polyformaldehyde 1000g, step 1
Glass fiber 150g, melamine 100g, toughener polyurethane 100g, nano silica 80g, phosphorous acid antioxidant 2246
30g, plasticizer phthalic acid dioctyl ester 20g are uniformly mixed and are added double screw extruder, are 180 DEG C in temperature, revolving speed is
Melting extrusion under 80r/min, cooling, granulation obtain fire-retardant toughened improved polyoxymethylene composite.
Embodiment 2
High tenacity, the preparation method of high fire-retardance improved polyoxymethylene composite in the present embodiment comprising the steps of:
1. the preparation of modified glass-fiber
40g glass fibre is placed in and is added in 5000mL there-necked flask, and 3000mL acetone is added, at room temperature mechanical stirring
And ultrasonic disperse, 4g poly ion liquid is then added, stirs 4h.And then vacuum distillation removes acetone under the conditions of 70 DEG C, obtains
To poly ion liquid modified glass-fiber.
2. polyformaldehyde is fire-retardant, toughening composition preparation
All raw materials are dried 12h at 90 DEG C respectively, the modification glass for then preparing polyformaldehyde 1000g, step 1
Glass fiber 200g, melamine 100g, toughener polyurethane 150g, nano silica 100g, phosphorous acid antioxidant 2246
30g, plasticizer phthalic acid dioctyl ester 20g are uniformly mixed and are added double screw extruder, are 180 DEG C in temperature, revolving speed is
Melting extrusion under 80r/min, cooling, granulation obtain fire-retardant toughened improved polyoxymethylene composite.
Embodiment 3
High tenacity, the preparation method of high fire-retardance improved polyoxymethylene composite in the present embodiment comprising the steps of:
1. the preparation of modified glass-fiber
40g glass fibre is placed in and is added in 5000mL there-necked flask, and 3000mL acetone is added, at room temperature mechanical stirring
And ultrasonic disperse, 4g poly ion liquid is then added, stirs 4h.And then vacuum distillation removes acetone under the conditions of 70 DEG C, obtains
To poly ion liquid modified glass-fiber.
2. polyformaldehyde is fire-retardant, toughening composition preparation
All raw materials are dried 12h at 90 DEG C respectively, the modification glass for then preparing polyformaldehyde 1000g, step 1
Glass fiber 150g, melamine 150g, toughener polyurethane 200g, nano silica 80g, phosphorous acid antioxidant 2246
30g, plasticizer phthalic acid dioctyl ester 20g are uniformly mixed and are added double screw extruder, are 180 DEG C in temperature, revolving speed is
Melting extrusion under 80r/min, cooling, granulation obtain fire-retardant toughened improved polyoxymethylene composite.
Embodiment 4
High tenacity, the preparation method of high fire-retardance improved polyoxymethylene composite in the present embodiment comprising the steps of:
1. the preparation of modified glass-fiber
40g glass fibre is placed in and is added in 5000mL there-necked flask, and 3000mL acetone is added, at room temperature mechanical stirring
And ultrasonic disperse, 4g poly ion liquid is then added, stirs 4h.And then vacuum distillation removes acetone under the conditions of 70 DEG C, obtains
To poly ion liquid modified glass-fiber.
2. polyformaldehyde is fire-retardant, toughening composition preparation
All raw materials are dried 12h at 90 DEG C respectively, the modification glass for then preparing polyformaldehyde 1000g, step 1
Glass fiber 150g, melamine 200g, toughener polyurethane 150g, nano silica 100g, phosphorous acid antioxidant 2246
30g, plasticizer phthalic acid dioctyl ester 20g are uniformly mixed and are added double screw extruder, are 180 DEG C in temperature, revolving speed is
Melting extrusion under 80r/min, cooling, granulation obtain fire-retardant toughened improved polyoxymethylene composite.
In order to verify preparation improved polyoxymethylene composite physicochemical property, respectively to modification prepared in the above embodiments
It is tested for the property after the injection molding of polyformaldehyde engineering plastics:
Claims (4)
1. a kind of high tenacity, high fire-retardance modified polyformaldehyde material, which is characterized in that the material includes that following components and parts by weight contain
Amount:
The poly ion liquid structural formula is such as shown in (I):
The polyformaldehyde is one of homopolymerization polyformaldehyde and kematal,
The toughener be one of polyurethane and nitrile rubber,
The antioxidant be one of Hinered phenols antioxidant and phosphite ester antioxidant or a variety of,
The inorganic nanometer powder be one of nano silica and nano aluminium oxide or a variety of,
The plasticizer is one of dibutyl phthalate and dioctyl phthalate or a variety of.
2. high tenacity according to claim 1, high fire-retardance modified polyformaldehyde material, which is characterized in that the modified glass
Fiber is to be prepared via a method which to obtain:
By glass fibre adding into acetone, simultaneously ultrasound is evenly dispersed, and poly ion liquid is then added, and there is 100 DEG C of removings after stirring 4h
Solvent obtains modified glass-fiber, and glass fibre length is 1~50nm.
3. high tenacity according to claim 1, high fire-retardance modified polyformaldehyde material, which is characterized in that the polyion liquid
The body degree of polymerization is 120, and the weight ratio of poly ion liquid and glass fibre is 1:10.
4. a kind of high tenacity as described in claim 1-3, the preparation method of high fire-retardance modified polyformaldehyde material, feature exist
In including the following steps:
A. all raw materials are distinguished into 90 DEG C of drying process 12h；
B. the raw material after drying is uniformly mixed according to the proportion and is added double screw extruder, be 170~180 DEG C in temperature, turn
Speed is melting extrusion under 80~100r/min, and cooling, granulation obtains modified polyformaldehyde material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811033921.2A CN109337281A (en) | 2018-09-05 | 2018-09-05 | A kind of high tenacity, high fire-retardance modified polyformaldehyde material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811033921.2A CN109337281A (en) | 2018-09-05 | 2018-09-05 | A kind of high tenacity, high fire-retardance modified polyformaldehyde material and preparation method thereof |
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| CN109337281A true CN109337281A (en) | 2019-02-15 |
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| CN201811033921.2A Withdrawn CN109337281A (en) | 2018-09-05 | 2018-09-05 | A kind of high tenacity, high fire-retardance modified polyformaldehyde material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110028753A (en) * | 2019-04-08 | 2019-07-19 | 苏州威瑞成新材料有限公司 | A kind of elastic body toughening polyformaldehyde material |
| CN110922724A (en) * | 2019-11-11 | 2020-03-27 | 天津金发新材料有限公司 | Glass fiber reinforced PBT composition and preparation method thereof |
-
2018
- 2018-09-05 CN CN201811033921.2A patent/CN109337281A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110028753A (en) * | 2019-04-08 | 2019-07-19 | 苏州威瑞成新材料有限公司 | A kind of elastic body toughening polyformaldehyde material |
| CN110922724A (en) * | 2019-11-11 | 2020-03-27 | 天津金发新材料有限公司 | Glass fiber reinforced PBT composition and preparation method thereof |
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