CN110894322A - Low-warpage glass fiber reinforced polypropylene composite material for automobile - Google Patents
Low-warpage glass fiber reinforced polypropylene composite material for automobile Download PDFInfo
- Publication number
- CN110894322A CN110894322A CN201911198430.8A CN201911198430A CN110894322A CN 110894322 A CN110894322 A CN 110894322A CN 201911198430 A CN201911198430 A CN 201911198430A CN 110894322 A CN110894322 A CN 110894322A
- Authority
- CN
- China
- Prior art keywords
- glass fiber
- parts
- composite material
- low
- warpage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a low-warpage glass fiber reinforced polypropylene composite material for an automobile. The composite material comprises the following raw materials in parts by weight: 100-120 parts of polypropylene, 30-50 parts of glass fiber, 3-10 parts of starch solution, 10-20 parts of soybean oil, 1-3 parts of silane coupling agent and 1-3 parts of auxiliary agent. The soybean oil and the starch solution are added into the polypropylene composite material, so that the polypropylene composite material can be compounded with polypropylene in a state of fully soaking glass fibers, the shrinkage rate is improved, and meanwhile, the silane coupling agent and the auxiliary agent are added to realize a synergistic effect, so that the mechanical property of the composite material is ensured.
Description
Technical Field
The invention relates to a low-warpage glass fiber reinforced polypropylene composite material for an automobile, and belongs to the technical field of composite materials.
Background
Polypropylene is one of five general-purpose plastics, has excellent performance, is widely applied to the fields of articles for daily use, automobiles, household appliances and the like, and the polypropylene material modified by glass fiber replaces engineering plastics in part of applications by virtue of good rigidity of the polypropylene material. But the glass fiber reinforced polypropylene material is seriously warped due to the difference of the transverse shrinkage and the longitudinal shrinkage. Some patents have improved warpage, but the effect is not good, and the effect in heat welding sealability and compressive strength is not satisfactory.
The long glass fiber reinforced polypropylene material for the automotive interior also meets the requirements of low odor and solvent resistance, and because of the rubber phase in the polypropylene material and the added POE toughening agent and the like, the polypropylene material is easy to swell when subjected to a gasoline and engine oil soaking test, so that the glossiness of the surface of the material is reduced, and the color becomes light.
At present, the flat glass fibers are mainly used for reducing the orientation and the warpage in the glass fiber flowing process, for example, in Chinese patent CN201710250365, the flat glass fibers and mica are matched to reduce the warpage. Chinese patent CN201711448077 uses flat glass fiber to improve the warpage of reinforced nylon material, and the above patents all have better improvements on warpage, but the high cost of the flat glass fiber can limit its popularization and application.
Therefore, a low-warpage glass fiber reinforced polypropylene composite material for automobiles is needed.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a low-warpage glass fiber reinforced polypropylene composite material for an automobile.
The invention is realized by the following technical scheme:
the low-warpage glass fiber reinforced polypropylene composite material for the automobile comprises the following raw materials in parts by weight: 100-120 parts of polypropylene, 30-50 parts of glass fiber, 3-10 parts of starch solution, 10-20 parts of soybean oil, 1-3 parts of silane coupling agent and 1-3 parts of auxiliary agent.
The low-warpage glass fiber reinforced polypropylene composite material for the automobile is characterized in that the glass fiber is obtained through the following steps: calcining the glass balls at the temperature of 700-900 ℃, placing the calcined glass balls in a cold isostatic press for isostatic pressing to obtain compact blocks, melting and clarifying the compact blocks, drawing wires, controlling the diameter of the primary glass fiber to be 0.2-0.5 mm, blowing the primary glass fiber into secondary glass fiber by flame, and enabling the secondary glass fiber to enter a cotton collecting channel under the blowing of airflow, wherein the diameter of the secondary glass fiber is 50-1000 nm.
The low-warpage glass fiber reinforced polypropylene composite material for the automobile comprises SiO as a chemical component of glass balls265-70 percent of MgO10-15 percent of Al2O34% -5% of Na20 to 2 percent of O, 4 to 5 percent of CaO and B2O35 to 8 percent of BaO and 0 to 1 percent of BaO.
The auxiliary agent comprises 0.5-1.2 parts by weight of antioxidant and 0.5-1.8 parts by weight of compatilizer.
The antioxidant is one or more of dibutyl hydroxy toluene, tert-butyl hydroquinone or 4-hydroxy dodecanoic acid acyl aniline.
The low-warpage glass fiber reinforced polypropylene composite material for the automobile is characterized in that the compatilizer is maleic anhydride grafted polypropylene.
The low-warpage glass fiber reinforced polypropylene composite material for the automobile is obtained by the following steps:
(1) putting starch into water, stirring and mixing to obtain a 30% starch solution;
(2) fully mixing glass fiber and soybean oil in a stirrer, and adding 30% starch solution; then sequentially adding polypropylene, a silane coupling agent and an auxiliary agent, and fully mixing to obtain a mixed material;
(3) placing the obtained mixed material in a double-screw extruder, wherein the temperature of each temperature zone of the double-screw extruder from feeding to extruding is set as follows: a first area: 150 ℃ to 170 ℃, two zones: 170-190 ℃, three zones: 190-210 ℃ and four zones: 190-210 ℃, five zones: 190-210 ℃ and six zones: 190-210 ℃, seven zones: 210 ℃ to 230 ℃, nine zones: 210 ℃ to 230 ℃, die head: 210-250 ℃.
The main machine rotating speed of the double-screw extruder is 300-450 r/min.
The invention achieves the following beneficial effects:
the soybean oil and the starch solution are added into the polypropylene composite material, so that the polypropylene composite material can be compounded with polypropylene in a state of fully soaking glass fibers, the shrinkage rate is improved, and meanwhile, the silane coupling agent and the auxiliary agent are added to realize a synergistic effect, so that the mechanical property of the composite material is ensured.
The glass fiber provided by the invention is higher in strength and more compact after being drawn twice, and has good shrinkage rate while the strength of the composite material is enhanced.
Detailed Description
The invention is further described below. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
The low-warpage glass fiber reinforced polypropylene composite material for the automobile comprises the following raw materials in parts by weight: 100 parts of polypropylene, 30 parts of glass fiber, 3 parts of starch solution, 10 parts of soybean oil, 1 part of silane coupling agent, 0.5 part of dibutyl hydroxy toluene and 0.5 part of maleic anhydride grafted polypropylene.
The glass fiber is obtained by the following steps: calcining the glass balls at the temperature of 700-900 ℃, placing the calcined glass balls in a cold isostatic press for isostatic pressing to obtain compact blocks, melting and clarifying the compact blocks, drawing wires, controlling the diameter of the primary glass fiber to be 0.2-0.5 mm, blowing the primary glass fiber into secondary glass fiber by flame, and enabling the secondary glass fiber to enter a cotton collecting channel under the blowing of airflow, wherein the diameter of the secondary glass fiber is 50-1000 nm.
The chemical component of the glass ball is SiO265-70 percent of MgO10-15 percent of Al2O34% -5% of Na20 to 2 percent of O, 4 to 5 percent of CaO and B2O35 to 8 percent of BaO and 0 to 1 percent of BaO.
The low-warpage glass fiber reinforced polypropylene composite material for the automobile is obtained by the following steps:
(1) putting starch into water, stirring and mixing to obtain a 30% starch solution;
(2) fully mixing glass fiber and soybean oil in a stirrer, and adding 30% starch solution; then sequentially adding polypropylene, a silane coupling agent and an auxiliary agent, and fully mixing to obtain a mixed material;
(3) placing the obtained mixed material in a double-screw extruder, wherein the temperature of each temperature zone of the double-screw extruder from feeding to extruding is set as follows: a first area: 150 ℃ to 170 ℃, two zones: 170-190 ℃, three zones: 190-210 ℃ and four zones: 190-210 ℃, five zones: 190-210 ℃ and six zones: 190-210 ℃, seven zones: 210 ℃ to 230 ℃, nine zones: 210 ℃ to 230 ℃, die head: 210-250 ℃. The main machine rotating speed of the double-screw extruder is 300-450 revolutions per minute.
Example 2
The low-warpage glass fiber reinforced polypropylene composite material for the automobile comprises the following raw materials in parts by weight: 120 parts of polypropylene, 50 parts of glass fiber, 10 parts of starch solution, 20 parts of soybean oil, 3 parts of silane coupling agent, 1.2 parts of tert-butyl hydroquinone and 1.8 parts of maleic anhydride grafted polypropylene.
The glass fiber is obtained by the following steps: calcining the glass balls at the temperature of 700-900 ℃, placing the calcined glass balls in a cold isostatic press for isostatic pressing to obtain compact blocks, melting and clarifying the compact blocks, drawing wires, controlling the diameter of the primary glass fiber to be 0.2-0.5 mm, blowing the primary glass fiber into secondary glass fiber by flame, and enabling the secondary glass fiber to enter a cotton collecting channel under the blowing of airflow, wherein the diameter of the secondary glass fiber is 50-1000 nm.
The chemical component of the glass ball is SiO265-70 percent of MgO10-15 percent of Al2O34% -5% of Na20 to 2 percent of O, 4 to 5 percent of CaO and B2O35 to 8 percent of BaO and 0 to 1 percent of BaO.
The low-warpage glass fiber reinforced polypropylene composite material for the automobile is obtained by the following steps:
(1) putting starch into water, stirring and mixing to obtain a 30% starch solution;
(2) fully mixing glass fiber and soybean oil in a stirrer, and adding 30% starch solution; then sequentially adding polypropylene, a silane coupling agent and an auxiliary agent, and fully mixing to obtain a mixed material;
(3) placing the obtained mixed material in a double-screw extruder, wherein the temperature of each temperature zone of the double-screw extruder from feeding to extruding is set as follows: a first area: 150 ℃ to 170 ℃, two zones: 170-190 ℃, three zones: 190-210 ℃ and four zones: 190-210 ℃, five zones: 190-210 ℃ and six zones: 190-210 ℃, seven zones: 210 ℃ to 230 ℃, nine zones: 210 ℃ to 230 ℃, die head: 210-250 ℃. The main machine rotating speed of the double-screw extruder is 300-450 revolutions per minute.
Example 3
The low-warpage glass fiber reinforced polypropylene composite material for the automobile comprises the following raw materials in parts by weight: 110 parts of polypropylene, 40 parts of glass fiber, 5 parts of starch solution, 15 parts of soybean oil, 2 parts of silane coupling agent, 1 part of 4-hydroxydodecanoic acid anilide and 1 part of maleic anhydride grafted polypropylene.
The glass fiber is obtained by the following steps: calcining the glass balls at the temperature of 700-900 ℃, placing the calcined glass balls in a cold isostatic press for isostatic pressing to obtain compact blocks, melting and clarifying the compact blocks, drawing wires, controlling the diameter of the primary glass fiber to be 0.2-0.5 mm, blowing the primary glass fiber into secondary glass fiber by flame, and enabling the secondary glass fiber to enter a cotton collecting channel under the blowing of airflow, wherein the diameter of the secondary glass fiber is 50-1000 nm.
The chemical component of the glass ball is SiO265-70 percent of MgO10-15 percent of Al2O34% -5% of Na20 to 2 percent of O, 4 to 5 percent of CaO and B2O35 to 8 percent of BaO and 0 to 1 percent of BaO.
The low-warpage glass fiber reinforced polypropylene composite material for the automobile is obtained by the following steps:
(1) putting starch into water, stirring and mixing to obtain a 30% starch solution;
(2) fully mixing glass fiber and soybean oil in a stirrer, and adding 30% starch solution; then sequentially adding polypropylene, a silane coupling agent and an auxiliary agent, and fully mixing to obtain a mixed material;
(3) placing the obtained mixed material in a double-screw extruder, wherein the temperature of each temperature zone of the double-screw extruder from feeding to extruding is set as follows: a first area: 150 ℃ to 170 ℃, two zones: 170-190 ℃, three zones: 190-210 ℃ and four zones: 190-210 ℃, five zones: 190-210 ℃ and six zones: 190-210 ℃, seven zones: 210 ℃ to 230 ℃, nine zones: 210 ℃ to 230 ℃, die head: 210-250 ℃. The main machine rotating speed of the double-screw extruder is 300-450 revolutions per minute.
Comparative example 1
The low-warpage glass fiber reinforced polypropylene composite material for the automobile comprises the following raw materials in parts by weight: 100 parts of polypropylene, 30 parts of glass fiber, 3 parts of starch solution, 1 part of silane coupling agent, 0.5 part of butylated hydroxytoluene and 0.5 part of maleic anhydride grafted polypropylene. The rest is the same as in example 1.
Comparative example 2
The low-warpage glass fiber reinforced polypropylene composite material for the automobile comprises the following raw materials in parts by weight: 100 parts of polypropylene, 30 parts of glass fiber, 10 parts of soybean oil, 1 part of silane coupling agent, 0.5 part of butylated hydroxytoluene and 0.5 part of maleic anhydride grafted polypropylene. The rest is the same as in example 1.
The composite materials of the examples and comparative examples were tested for mechanical properties, shrinkage and warpage, and the results are shown in the following table.
| Test items | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 |
| Tensile strength MPa | 110 | 115 | 118 | 110 | 110 |
| Bending strength MPa | 143 | 140 | 145 | 140 | 138 |
| Shrinkage in flow Direction% | 0.13 | 0.13 | 0.12 | 0.25 | 0.26 |
| Shrinkage in the vertical flow direction% | 0.32 | 0.35 | 0.32 | 0.65 | 0.61 |
| Warping degree mm | 0.95 | 0.98 | 0.91 | 1.5 | 1.8 |
As can be seen from the above examples and comparative examples, compared with comparative example 1, the polypropylene composite material (examples 1-3) prepared by adding the soybean oil has higher mechanical properties, especially has excellent properties of low shrinkage and low warpage. Compared with the comparative example 2, the polypropylene composite material (examples 1-3) prepared by adding the starch solution has higher mechanical properties, and particularly has excellent properties of low shrinkage and low warpage.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The low-warpage glass fiber reinforced polypropylene composite material for the automobile is characterized by comprising the following raw materials in parts by weight: 100-120 parts of polypropylene, 30-50 parts of glass fiber, 3-10 parts of starch solution, 10-20 parts of soybean oil, 1-3 parts of silane coupling agent and 1-3 parts of auxiliary agent.
2. The low-warpage glass fiber reinforced polypropylene composite material for automobiles according to claim 1, wherein the glass fiber is obtained by the following steps: calcining the glass balls at the temperature of 700-900 ℃, placing the calcined glass balls in a cold isostatic press for isostatic pressing to obtain compact blocks, melting and clarifying the compact blocks, drawing wires, controlling the diameter of the primary glass fiber to be 0.2-0.5 mm, blowing the primary glass fiber into secondary glass fiber by flame, and enabling the secondary glass fiber to enter a cotton collecting channel under the blowing of airflow, wherein the diameter of the secondary glass fiber is 50-1000 nm.
3. The low-warpage glass fiber reinforced polypropylene composite material for automobile as claimed in claim 2, wherein the chemical component of the glass spheres is SiO265-70 percent of MgO10-15 percent of Al2O34% -5% of Na20 to 2 percent of O, 4 to 5 percent of CaO and B2O35 to 8 percent of BaO and 0 to 1 percent of BaO.
4. The low-warpage glass fiber reinforced polypropylene composite material for automobile according to claim 1, wherein the auxiliary agent comprises 0.5-1.2 parts by weight of antioxidant and 0.5-1.8 parts by weight of compatibilizer.
5. The low-warpage glass fiber reinforced polypropylene composite material for the automobile as claimed in claim 4, wherein the antioxidant is one or more of dibutyl hydroxy toluene, tert-butyl hydroquinone or 4-hydroxy dodecanoic acid acyl aniline.
6. The low-warpage glass fiber reinforced polypropylene composite material for automobiles according to claim 4, wherein the compatilizer is maleic anhydride grafted polypropylene.
7. The low-warpage glass fiber reinforced polypropylene composite material for the automobile as claimed in any one of claims 1 to 6, which is obtained by the following steps:
(1) putting starch into water, stirring and mixing to obtain a 30% starch solution;
(2) fully mixing glass fiber and soybean oil in a stirrer, and adding 30% starch solution; then sequentially adding polypropylene, a silane coupling agent and an auxiliary agent, and fully mixing to obtain a mixed material;
(3) placing the obtained mixed material in a double-screw extruder, wherein the temperature of each temperature zone of the double-screw extruder from feeding to extruding is set as follows: a first area: 150 ℃ to 170 ℃, two zones: 170-190 ℃, three zones: 190-210 ℃ and four zones: 190-210 ℃, five zones: 190-210 ℃ and six zones: 190-210 ℃, seven zones: 210 ℃ to 230 ℃, nine zones: 210 ℃ to 230 ℃, die head: 210-250 ℃.
8. The low-warpage glass fiber reinforced polypropylene composite material for automobile of claim 7, wherein the main machine rotation speed of the double screw extruder is 300-450 rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911198430.8A CN110894322A (en) | 2019-11-29 | 2019-11-29 | Low-warpage glass fiber reinforced polypropylene composite material for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911198430.8A CN110894322A (en) | 2019-11-29 | 2019-11-29 | Low-warpage glass fiber reinforced polypropylene composite material for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110894322A true CN110894322A (en) | 2020-03-20 |
Family
ID=69788288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911198430.8A Pending CN110894322A (en) | 2019-11-29 | 2019-11-29 | Low-warpage glass fiber reinforced polypropylene composite material for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110894322A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4983647A (en) * | 1988-11-08 | 1991-01-08 | Ube Industries, Ltd. | Reinforced polypropylene composition |
| CN102532682A (en) * | 2010-12-16 | 2012-07-04 | 上海普利特复合材料股份有限公司 | Low-warpage high-glaze filling reinforcing polypropylene material and preparation method thereof |
| CN102807710A (en) * | 2012-08-15 | 2012-12-05 | 科沃斯机器人科技(苏州)有限公司 | Glass fiber reinforced polypropylene compound material and preparation method thereof |
| CN102816384A (en) * | 2012-08-08 | 2012-12-12 | 金发科技股份有限公司 | Glass fiber-reinforced polypropylene material with shallow shrinkage mark and low warpage as well as preparation method and application thereof |
| CN103589103A (en) * | 2012-08-14 | 2014-02-19 | 合肥杰事杰新材料股份有限公司 | Long glass fiber reinforced composite polypropylene material, and preparation method and application thereof |
| CN106145687A (en) * | 2016-07-08 | 2016-11-23 | 中国计量大学 | A kind of high strength glass fiber |
| CN107118437A (en) * | 2017-05-18 | 2017-09-01 | 中广核俊尔新材料有限公司 | Lower shrinkage, Long Glass Fiber Reinforced PP Composite of low warpage and its preparation method and application |
| CN108003466A (en) * | 2017-12-19 | 2018-05-08 | 芜湖盈奇塑业有限公司 | A kind of preparation method of water horse high tenacity degradable polypropylene plastic |
| CN110104966A (en) * | 2019-05-30 | 2019-08-09 | 韦俊刚 | A kind of preparation method of high bond strength size |
-
2019
- 2019-11-29 CN CN201911198430.8A patent/CN110894322A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4983647A (en) * | 1988-11-08 | 1991-01-08 | Ube Industries, Ltd. | Reinforced polypropylene composition |
| CN102532682A (en) * | 2010-12-16 | 2012-07-04 | 上海普利特复合材料股份有限公司 | Low-warpage high-glaze filling reinforcing polypropylene material and preparation method thereof |
| CN102816384A (en) * | 2012-08-08 | 2012-12-12 | 金发科技股份有限公司 | Glass fiber-reinforced polypropylene material with shallow shrinkage mark and low warpage as well as preparation method and application thereof |
| CN103589103A (en) * | 2012-08-14 | 2014-02-19 | 合肥杰事杰新材料股份有限公司 | Long glass fiber reinforced composite polypropylene material, and preparation method and application thereof |
| CN102807710A (en) * | 2012-08-15 | 2012-12-05 | 科沃斯机器人科技(苏州)有限公司 | Glass fiber reinforced polypropylene compound material and preparation method thereof |
| CN106145687A (en) * | 2016-07-08 | 2016-11-23 | 中国计量大学 | A kind of high strength glass fiber |
| CN107118437A (en) * | 2017-05-18 | 2017-09-01 | 中广核俊尔新材料有限公司 | Lower shrinkage, Long Glass Fiber Reinforced PP Composite of low warpage and its preparation method and application |
| CN108003466A (en) * | 2017-12-19 | 2018-05-08 | 芜湖盈奇塑业有限公司 | A kind of preparation method of water horse high tenacity degradable polypropylene plastic |
| CN110104966A (en) * | 2019-05-30 | 2019-08-09 | 韦俊刚 | A kind of preparation method of high bond strength size |
Non-Patent Citations (2)
| Title |
|---|
| 何建新主编: "《新型纤维材料学》", 31 July 2014, 东华大学出版社 * |
| 王加龙编著: "《塑料成型工艺》", 30 June 2009, 印刷工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110655718A (en) | Low-density, high-rigidity and high-toughness polypropylene composite material and preparation method thereof | |
| CN108047708B (en) | Preparation method of long-chain nylon composite material for 3D printing | |
| CN111978640A (en) | Graphene modified polypropylene composite material for bumper and preparation method thereof | |
| CN110951163B (en) | High-surface-tension low-density polypropylene composite material and preparation method thereof | |
| CN104098884A (en) | Low-gloss PC/ABS alloy for automotive interior | |
| CN110655708A (en) | Low-density polypropylene composite material with excellent comprehensive performance and preparation method thereof | |
| CN107652668A (en) | A kind of activeness and quietness nylon material available for 3D printing and preparation method thereof | |
| CN107236296B (en) | Nylon glass fiber reinforced alcoholysis-resistant material | |
| CN110894356A (en) | High-strength modified nylon material for automobile | |
| CN102942736B (en) | High-glass fiber content reinforced polypropylene material and preparation method thereof | |
| CN111138855A (en) | Modified nylon material for automobile bumper | |
| CN111978641A (en) | High-modulus, high-fluidity and high-impact-resistance glass fiber reinforced polypropylene composite material and preparation method thereof | |
| CN111117224A (en) | Low-water-absorption glass fiber reinforced polyamide material and preparation method thereof | |
| CN110894322A (en) | Low-warpage glass fiber reinforced polypropylene composite material for automobile | |
| CN109294159A (en) | Low smell ABS resin composition of low gloss for automobile interiors and preparation method thereof | |
| CN113088050A (en) | PE and PET alloy material and preparation method thereof | |
| CN112662053A (en) | Low-density high-performance modified polypropylene composite material for vehicle bumper and preparation method thereof | |
| CN112175272A (en) | Outdoor plastic-wood floor with high dimensional stability in high-temperature environment | |
| CN111073146A (en) | Polypropylene-ethylene propylene diene monomer modified composite material for automobile | |
| CN111117223A (en) | Nylon material for automobile bearing and preparation method thereof | |
| CN113549290B (en) | Modified HIPS material for integral molding of oil-resistant and corrosion-resistant refrigerator body | |
| CN114350063B (en) | Fiber reinforced PP-RCT composite pipe and preparation method thereof | |
| CN115584122A (en) | Manufacturing method of nylon composite material with stable size | |
| CN1479766A (en) | Polyolefine resin composition | |
| CN110951159B (en) | Polypropylene/polyamide/polyketone composition and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200320 |